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SERVICE MANUAL - Aire Acondicionado Mitsubishi Electric

1. SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block lt Power Supply gt TB N Connection Terminal SW7 Switch lt Function Setup gt TB2 Terminal Block lt Indoor Outdoor gt X52CA 52C Relay Sw8 Switch lt Function Setup gt MC Motor for Compressor N F Noise Filter Circuit Board SW9 Switch MF1 MF2 Fan Motor LI4 LI2 LIS NI Connection Terminal lt L1 L2 L3 N Power Supply gt SWP Switch lt Pump Down gt
2. SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block lt Power Supply Indoor Outdoor gt LI Connection Terminal lt L Phase gt CN31 Connector lt Emergency Operation gt MC Motor for Compressor NI Connection Terminal lt N Phase gt CN3S Connector lt Connection for Option gt MF1 MF2 Fan Motor P2 Connection Terminal CN51 Connector lt Connection for Option gt 2184 Solenoid Valve Four Way Valve N2 Connection Terminal ss Connector lt Connection for Option gt 63H High Pressure Switch DCL1 DCL2 Connection Terminal lt Reactor gt CNM Connector lt A Control Service Inspection Kit gt TH3 TH33 Thermistor lt Outdoor Pipe gt IGBT Power Module CNMNT Connector TH4 Thermistor lt Discharge gt EI E2 E3 E4 Connection Terminal lt Ground gt lt Connected to Optional M NET Adapter Board gt TH6 Thermistor lt Outdoor 2 Phase Pipe gt C B Controller Circuit Board CNVMNT Connector TH7 Thermistor lt Outdoor gt
3. S B e 26 css ik 66 69 22 5 1 I 8 SE 12 193 12 1 4 12 2 CN51 CNDM Ise s CN3 CNF1 TH33 TH32 TH7 6 TH3 THA LEVA LEV B WHT WHT azz WHT WHT YLW BLK RED WHT WHT WHT RED WHT 6 jC ss 1 1 1 1 MC U ZYF RED LD U LED1 EB M HQE olo WHT LD V bah Q 2 12 6 lt W BLK t e LDW YLW CNSW Beh so lave 33g LIL LED2 WHT poH 2 3 gig IH 556 BeH SE CIT 1 5 152 teo CNMNT CNVMNT q X2 WHT WED LD S3 BRN LD S2 ORN 1549 Hs YW 1 F4 F GRN F2 rt RS1 LD LI RED I ost J L es AA sas a I bd ae a kara Esai T CB2 CBI 52C rm TH am Th a 1 1 11 17 A WHT ac LD EI LD R0 S0 D s1 s2 s3 TB1 x x m a a S ETF LTT TI INDOOR p M UNIT POWER SUPPLY N 230V 50Hz M NET ADAPTER SYMBOL NAME TB7 Terminal Block lt M net connection gt CN5 Connector lt Transmission gt CND Connector lt Power Supply gt CN2M Connector lt M NET communication gt OCH527B 16 PUHZ ZRP60VHA
4. SYMBOL NAME SYMBOL NAME SYMBOL NAME B1 erminal Block lt Power Supply gt TB L1 L2 L3 Connection Terminal lt L1 L2 L3 Power Supply gt SW6 Switch lt Model Seleci gt B2 erminal Block lt Indoor Outdoor gt TB N Connection Terminal Sw7 Switch lt Function Setup gt MC Motor for Compressor X52CA B 52C Relay Sw8 Switch lt Function Setup gt MF1 MF2 Fan Motor N F Noise Filter Circuit Board SW9 Switch 21S4 Solenoid Valve Four Way Valve LIV LIZ LIS NI_ Connection Terminal lt L1 L2 L3 N Power Supply gt SWP Switch lt Pump Down gt 63H High Pressure Switch LO1 LOZLOSNO Connection Terminal lt L1 L2 L3 N Power Supply gt CN31 Connector lt Emergency Operation gt H3 TH33 hermistor lt Outdoor Pipe gt GD1 GD3 Connection Terminal lt Ground gt CN3S Connector lt Connector for Option gt H4 hermistor lt Discharge gt CONV B Converter Circuit Board CNDM Connector lt Connection for Option Contact Input gt H6 hermistor lt Outdoor 2 Phase Pipe gt L1 A1 IN Connection Terminal lt L1 Power Supply gt CN51 Connector lt Connection for Option gt H7 hermistor lt Out
5. Model select oC o m gt C gt E E m m N m oL m gt r om iea iem or 2 Power failure automatic recovery can be set by either remote controller or this DIP SW If one of them is set to ON Auto recovery activates Please set Auto recovery basically by remote controller because all units do not have DIP SW Please refer to the indoor unit installation manual 3 SW7 1 is setting change over of Demand Low noise It is effective only in case of external input Local wiring is necessary Refer to next page Special function 4 Please do not use SW7 3 to 7 6 usually Trouble might be caused by the usage condition 5 With this switch setting the capacity decreases up to 30 under peak load condition Thus this setting is recommended only for Air to water purposes OCH527B 82 2 Function of connector Action by open short operation nha Types Connector Function Effective timing Short Open Connector CN31 Emergency operation Start Normal When power supply ON Special function a Low level sound priority mode Local wiring By perfor
6. If the optional indoor power supply terminal kit is used change the indoor unit If the indoor and electrical box wiring referring to the figure in the right and the DIP switch settings of Connectors connections when shipped outdoor units have the outdoor unit control board Electric heater _ rom the factory are for indoor unit power separate power For models with supplied from outdoor unit supplies change the Indoor unit specifications heater connections of the Indoor power supply terminal kit option Required T aje connectors as shown i i Sl i i Indoor unit electrical box connector con Required y a in the following nection change PEH HS figure ri rar A 1 Label affixed near each wiring diagram Required magor unit Electric heater for the indoor and outdoor units z control boar For models with Outdoor unit DIP switch settings when ON L heater Connectors using separate indoor unit outdoor unit Indoor unit power supplied from outdoor unit T aje power supplies only OFF 1 2 SW8 when shipped from factory N Li gE ORANGE Set the SW8 3 to ON c S 9 CN01 A 7 n Indoor unit There are 3 types of labels labels A B and C Affix the appropriate labels to x control board the units according to the wiring method Separate indoor unit outdoor unit power supplies Indoor unit model RP35 140 Indoor unit power supply N single 50 Hz 230 V
7. 0 Switch OFF 1 Switch ON 0 Switch OFF 1 Switch ON T se s Data display 7 i 4 Data display olololol loflo 00 00 olololo 00 00 1 lol lolololo 00 01 1 o0 0 0 00 01 olilolol lolo 00 02 011107190 00 02 1 1 1lolololo 00 03 1 1 o0 0 00 03 ololilol lolo 00 04 ololilo 00 04 1 lo l ilololo 00 05 1 lolilo 00 05 olil l ilololo 00 06 olililo 00 06 1 111 o0 o0 0 00 07 1 1 1 0 00 07 olololil lolo 00 08 ololol i 00 08 1 lol lol ilolo 00 09 1 lololi 00 09 ol lolilolo 00 0A olilofi 00 0A 1l ilolilolo 00 Ob 1 1 0 1 00 Ob olo lililolo 00 0C olol1ili 00 0C 1 ol1 1 o o 00 Od 1lol ili 00 Od olil li ililolo 00 0E olilili 00 0E 1l ilililolo 00 OF aa 00 OF olololol lijlo 00 10 1 lol lololilo 00 11 014 010 1 0 00 12 0 Switch OFF 1 Switch ON f a Oro Lo 00 13 SW8 Data display ofol1 ol1 o 00 14 11213 1 0 1 0 1 0 00 15 01010 00 00 o i 1 o 1 0 00 16 1 0 0 00 01 1 1 1 0 11 0 00 17 o 1 0 00 02 0jolol1il1ilo0 00 18 1 10 00 03 1 olo i1 1fo 00 19 0 01 1 00 04 o lilolil lilo 00 1A 1 0 1 00 05 1 1 0 1 1 0 00 1B 0 11 00 06 ololilil i lo 00 1C 1 1 11 00 07 1lolilililo 00 1D olililili lo 00 1E 1 1 1 1 1 0 00 1F 0 Switch OFF 1 Switch ON olololol loli 00 20 SWA SW9 SW10 Dala disney 1 lololololi 00 21 1 2 olilolololi 00 22 0 0 00 00 111101 0l0l1 00 23 1 0 00 01 0 0 1 0 0 1 00 24 0 1 00 02 1 o 1 o o 1 00 25 1 1 00 03 oli lilololi 00 26 1lililololi 00 27 olo
8. N 1 Z Press the TEMP buttons CV and CA in the picture in the Mode number og oa previous page to set the desired mode number display section 2 if Only the selectable mode numbers can be selected G Mode number 02 Indoor temperature detection Select the setting content for the selected mode Press the MENU button in the picture in the previous page Press the B TEMP buttons v D and _A D in the picture in the The currently selected setting number will flash so check the currently set content previous page to select the desired setting number FUBS TION nn nn nn nn SELECTION EU CHOICE Ae LI l Setting number display section BEN Setting number 1 Indoor unit operating average ere number 3 Remote controller built in sensor Register the settings you have made in steps to Press the MODE button in the picture in the previous page The mode number and setting number will stop flashing and remain lit The mode number and setting number will start to flash and registration starts indicating the end of registration FUNCTION nan nn nn SELECTION uuu UU UU m s ak MENEH If is displayed for both the mode number and setting number and 88 flashes in the room temperature display area a transmission error may have occurred Check to see if there are any sources of noise or interference near the transmission pa
9. D ne fe Description O Request content Unit Remarks Display range 153 l F ing ti 154 meer an operating time 0 9999 thou After filter is reset l Total ing ti 155 ndoor Tota operating time 0 _ 9999 iO Haaa Fan motor ON time 156 157 Indoor fan output value Sj value 0 255 Fan control data _ For indoor fan phase control Indoor fan output value 158 OPS va 00 indicates fan control data For indoor fan pulsation control Pulsation ON OFF 159 Indoor fan output value duty value 00 indicates fan control data _ For indoor DC brushless motor control 160 161 162 Indoor unit Model setting information Referto 13 1 2 Detail Contentsin Request Code _ 163 Indoor unit Capacity setting information Referto 13 1 2 Detail Contentsin Request Code 164 Indoor unit SW3 information Undefined 165 Wireless pair No indoor control board side setting Referto 13 1 2 Detail Contents in Request Code 166 Indoor unit SW5 information Undefined _ 167 189 190 Indoor unit Microprocessor version information Examples Ver 5 01 0501 Ver 191 Indoor unit Microprocessor version information sub No Auxiliary information displayed after version information 4 Examples Ver 5 01 A000 A000 192 764 765 Stable operation Heat mode This request code is not provided to collect data It is used to fix the operation state 766 Stable operati
10. 2 secs Output step of outdoor FAN 0 10 The number of ON OFF times of com pressor 0 9999 0 9999 When the number of times is 100 or more hundreds digit tens digit and ones digit are displayed by turns Example When 42500 times 425 x100 times 0 5 secs 0 5secs J4 gt 25 gt 2 secs Compressor integrating operation times 0 9999 0 9999 When it is 100 hours or more hundreds digit tens digit and ones digit are displayed by turns Example When 2450 hours 245 x10 hours 0 5 secs 0 5secs 2 gt 45 gt 2 secs Compressor operating current 0 50 0 50 Omit the figures after the decimal fractions Compressor operating frequency 0 255 0 255 When it is 100Hz or more hundreds digit tens digit and ones digit are displayed by turns Example When 125Hz 0 5 secs 0 5secs 1 gt 25 gt t J 2 secs LEV A opening pulse 0 480 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Example When 150 pulse 0 5secs 0 5secs 1 gt 50 gt 2 secs Error postponement code history 1 of outdoor unit Postponement code display Blinking During postponement Li
11. Note The marks L1 IL2 L3 IN1 N2 P1 P2 U V and W shown in the diagram are not actually printed on the board TB N TB U TB V TB W Connect to the CK capacitor Connect to the compressor MC Voltage among phases 10V 400V AC Diode module TAB connector N nienn ak on X52CA e kas a 7 o oig Connect to the je 7 MA T tees Et Sa ie RS resistor N 00 CN4 TB L1 TB L2 TB L3 Connect to the Connect to the outdoor outdoor converter converter circuit board circuit board CN7 L1 OU L2 OU L3 OU 400V AG Detection of primary current Connect to the outdoor noise filter circuit board CNCT Connect to the outdoor controller circuit board CN4 CN2 CN6 Connect to the outdoor controller circuit board CN2 Thermistor Power circuit board gt Transmitting lt Heat sink gt TH8 signal to the controller board 0 5V DC Zero cross signal 0 5V DC Not used 16V DC 16V DC 0 0 _ 0 0 6 0 0 OCH527B 78 DIP IPM Dw Outdoor power circuit board PUHZ ZRP100YKAR1 PUHZ ZRP125YKAR1 PUHZ ZRP140YKAR1 TB Brief Check of POWER MODULE If they are short circuited it means that they are broken 1 Check of DIODE MODULE L1 P1 L2 P1 IL3 IP1 L1 INII L2 IN1 L3 IN1 2 Check of DIP IPM P2 U IP2j
12. Frequency control state Frequency control state Frequency control state Display Current limit control 0 No current limit 1 Primary current limit control is ON 2 Secondary current limit control is ON OCH527B Display over OTO Compressor Four way valve Solenoid valve supplied to compressor 0 1 ON 2 ON 3 ON ON 4 ON 5 ON ON 6 ON ON 7 ON ON ON 8 ON A ON ON Display State 0 Normal 1 Preparing for heat operation 2 3 4 Heater is ON 5 Anti freeze protection is ON 6 Overheat protection is ON 7 Requesting compressor to turn OFF F There are no corresponding units Frequency control state Display Discharge temperature Condensation temperature Anti freeze Heatsink temperature overheat prevention overheat prevention protection control overheat prevention 0 1 Controlled 2 Controlled 3 Controlled Controlled 4 Controlled 5 Controlled Controlled 6 Controlled Controlled 7 Controlled Controlled Controlled 8 Controlled 9 Controlled Controlled A Controlled Controlled b Controlled Controlled Controlled C Controlled Controlled d Controlled Controlled Controlled E Controlled Controlled Controlled F Controlled Controlled Controlled Controlled 114 Fan control state Reguest code 53 Data display 0 0 x Fan step correction value by heatsink temperature overheat prevention contr
13. Discharge temperature Indoor heat exchanger temperature Discharge temperature Outdoor heat exchanger temperature 122 14 2 INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION 14 2 1 PAR 30MAA PAR 31MAA Refrigerant leakage is detected after a long time To enable this function the refrigerant volume must be saved initial learning after installation Always operate this function in the following manner after installation Always perform test run before using this function and confirm that the air conditioner operates normally To accurately detect refrigerant leaks set the wind speed to strong and execute this operation Refrigerant leak check is valid only with models which support the refrigerant leak check function Select Service from the Main menu and press the button Check menu 1 1 Error history Refrigerant volume check w gt Refrigerant leak check Smooth maintenance Select Check with the or button and press the Vv button Request code Service menu g Select Refrigerant leak check with the F1 or F2 button and press the ang Sy Q button _ Stable mode will start Refrigerant leak check Press the Q button stable mode will start Sen riean leek deak Approx 20minutes Stable mode will take approx 20 minutes Begin Y The operatio
14. If large amount of mineral oil enters that can cause deterio ration of refrigerant oil etc Use the specified refrigerant only Charge refrigerant from liquid phase of gas cylinder If the refrigerant is charged from gas phase composition change may occur in refrigerant and the efficiency will be lowered Do not use refrigerant other than R410A Never use any refrigerant other than that specified Doing so may cause a burst an explosion or fire when the unit is being used serviced or disposed of Correct refrigerant is specified in the manuals and on the spec labels provided with our products We will not be held responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions If other refrigerant R22 etc is used chlorine in refrige rant can cause deterioration of refrigerant oil etc Ventilate the room if refrigerant leaks during operation If refrigerant comes into contact with a flame poisonous gases will be released 1 Cautions for service 1 Perform service after recovering the refrigerant left in unit completely 2 Do not release refrigerant in the air 3 After completing service charge the cycle with specified amount of refrigerant 4 When performing service install a filter drier simultaneously Be sure to use a filter drier for new refrigerant 2 Additional refrigerant cha
15. OCH527B 111 a 3 TR y Request content Desenpih Unit Remarks Display range aa 103 Error history 1 latest Displays error history is displayedifno history is present Code 104 Error history 2 second to last Displays error history is displayedifno history is present Code 105 Error history 3 third to last Displays error history is displayedifno history is present Code 3 TH3 ie Abnormal thermistor display Sa SN TH3 TH6 TH7 TH8 8 TH8 number 0 No thermistor error 107 Operation mode at time of error Displayed in the same way as request code 0 _ 108 Compressor Operating current at time of error 0 50 A 109 Compressor Accumulated operating time at time of error 0 9999 10 hours 110 Compressor Number of operation times at time of error 0 9999 100 times 111 Discharge temperature at time of error 3 217 c 112 Outdoor unit Liquid pipe 1 temperature TH3 at time of error 40 90 ic 113 Outdoor unit Liquid pipe 2 temperature at time of error 40 90 C 114 Outdoor unit 2 phase pipe temperature TH6 attime oferror 39 88 C 115 116 Outdoor unit Outside air temperature TH7 at time of error 39 88 C 117 Outdoor unit Heatsink temperature TH8 at time of error 40 200 C 118 Discharge super
16. are displayed by turns Code display Error thermistor display When there is no error thermistor is displayed 3 Outdoor pipe temperature Liquid TH3 6 Outdoor pipe temperature 2 phase TH6 7 Outdoor outside temperature TH7 8 Outdoor heatsink TH8 daam Operation frequency on error occurring 0 255 0 255 When it is 100Hz or more hundreds digit tens digit and ones digit are displayed by turns Example When 125Hz 0 5 secs 0 5secs 2 secs 25 gt Fan step on error occurring 0 10 OCH527B Outdoor pipe temperature TH33 39 88 91 39 88 When the temperature is 0C or less and temperature are displayed by turns The black square W indicates a switch position SW2 setting Display detail Explanation for display LEV C opening pulse 0 480 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Example When 130 pulse 0 5 secs 0 5secs 2 secs J gt 30 gt Indoor room temperature TH1 on error occurring 8 39 Indoor pipe temperature Liquid TH2 39 88 on error occurring When the temperature is 0 C or less and 39 88 temperature are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs
17. lt How to reset the initial condition data gt When the unit is removed and installed again or refrigerant is changed additionally the Initial learning must be performed again by following procedure 1 Turn Main Power OFF 2 Connect the pin of CN31 to ON position on the outdoor controller board 3 Turn SW4 1 on the outdoor controller board to ON 4 Turn Main Power ON to reset the initial data After reset the data please turn the pin of CN31 and SW4 1 to original OFF position lt Caution gt 1 On the following condition the operation cannot be stabillized and judgment of cheking operation may not be accurate a Outdoor temperature 2 40 C or Room temperature 23 C b Airflow setting is not High notch 2 Please check the operation and unit status when the operation is not stabilized after more than 45 minutes OCH527B 125 15 DISASSEMBLY PROCEDURE PUHZ ZRP35VKA PUHZ ZRP50VKA OPERATING PROCEDURE PHOTOS i i Top panel 1 Removing the top panel service panel front panel back Top pane Op p panel and grille Proto fixing screws Top panel fixing screw 1 Remove the top panel fixing screws 4 x 10 one from the YN right and two from the left side and detach the top panel 2 Remove 2 service panel fixing screw 4 x 10 and detach Grille gt the service panel by pulling it downward See Photo 2 x Back panel rille 3 Remove the front panel fixing screws 4 x 10
18. Tek QD o Q Thermistor lt Outdoor pipe gt TH33 LEV coil LEV B LEV coil LEV A Ball valve Valve bed PUHZ ZRP140VKA LEV coil LEV C A LEV coil Z LEV B 4 way valve D coil 2184 ae 4 way valve Thermistor lt Outdoor pipe gt TH33 Ball valve Valve bed Stop valve 138 OPERATING PROCEDURE PHOTOS 10 Removing the high pressure switch 63H 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 4 Pull out the lead wire of high pressure switch 5 Recover refrigerant 6 Remove the welded part of high pressure switch Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized 11 Removing the reactor DCL 1 Remove the service panel See Photo 1 2 Disconnect the connecting wire from TAB DCL1 DCL2 on the power circuit board 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 4 Remove 4 reactor fixing screws 4 x 10 and remove
19. Fix the breaking or poor contact of the indoor outdoor connecting wire Set the refrigerant address to 0 In case of the multiple grouping system recheck the refrigerant address again lt Replace the outdoor controller circuit board lt Replace the outdoor controller circuit board e Replace the indoor controller board of the indoor unit which doesn t operate e Not abnormal There may be the influence of electromagnetic noise Check the transmission wire and get rid of the causes e Replace the outdoor power circuit board e Replace the indoor power board Symptoms Nothing is displayed on the remote controller Diagnosis flow LED display of the indoor controller board LED1 LED2 or 6 LED3 Inspection method and troubleshooting Check the voltage of the terminal block TB6 of the remote controller DC 10V to DC 16V HES Check the status Lighting of the LED2 Blinking Check the status of the LED2 after disconnecting the remote controller wire from the terminal block TB5 of the indoor unit Check the statug gt Lighting of the LED2 Blinking OCH527B 58 e Defective remote controller e Breaking or poor contact of the remote controller wire lt The remote controller wire short circuits lt Defective indoor controller board e Replace the remote controller
20. Indoor pipe temperature Cond Eva THS 4 Indoor 4 39 88 93 39 88 When the temperature is 0 C or less and temperature are displayed by turns When there is no indoor unit 007 is displayed The black square W indicates a switch position SW2 setting Display detail Explanation for display The following code will be a help to know the operating status of unit Controlling status of compressor operating frequency The tens digit Display Compressor operating frequency control Primary current control Secondary current control The ones digit In this digit the total number of activated control is displayed Compressor operating frequency control Preventive control for excessive temp erature rise of discharge temperature Code Preventive control for excessive temp display erature rise of condensing temperature Frosting preventing control Preventive control for excessive temp erature rise of heatsink Example The following controls are activated e Primary current control e Preventive control for excessive tempe rature rise of condensing temperature e Preventive control for excessive tempe rature rise of heatsink Comp surface temperature TH32 52 221 DA eeN When the comp surface thermistor detects 100 C or more hundreds digit tens digit and ones digit are displayed by turns
21. OFF When the remote controller is connected to the unit that has auto matic operation mode the following settings can be made To switch the setting press the OON OFF button ON Initial setting value The automatic mode is displayed when the operation mode is selected The automatic mode is not displayed when the operation mode is selected 3 Temperature range limit setting After this setting is made the temperature can be changed within the set range To switch the setting press the ON OFF button LIMIT TEMP COOL MODE The temperature range can be changed on cooling dry mode LIMIT TEMP HEAT MODE The temperature range can be changed on heating mode LIMIT TEMP AUTO MODE The temperature range can be changed on automatic mode OFF initial setting The temperature range limit is not active When the setting other than OFF is made the temperature range limit setting on cooling heating and automatic mode is made at the same time However the range cannot be limited when the set temperature range has not changed To increase or decrease the temperature press the TEMP V or A button To switch the upper limit setting and the lower limit setting press the 1 button The selected setting will flash and the temperature can be set Settable range Cooling Dry mode Lower limit 19 C 30 C Upper limit 30 C 19 C Heating mode Lower limit 17 C 28 C Upp
22. OUTDOOR UNIT Defrost method Reverse cycle Noise level Cooling dB 47 Heating dB 48 Dimensions W mm in 950 37 3 8 D mm in 330 30 13 1 3 16 H mm in 943 37 1 8 Weight kg lbs 67 148 Refrigerant R410A Charge kg lbs 3 5 7 7 Oil Model L 0 65 FV50S 0 70 FV50S Pipe size O D Liquid mm in 9 52 3 8 Gas mm in 15 88 5 8 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp Height difference Max 30m REFRIGERANT PIPING outdoor unit Piping length OCH527B Max 50m Service Ref PUHZ ZRP100VKA PUHZ ZRP125VKA PUHZ ZRP140VKA Mode Cooling Heating Cooling Heating Cooling Heating Power supply phase cycle voltage Single 50Hz 230V Max current 26 5 External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model ANB33FNFMT Motor output 3 3 Starter type Inverter Protection devices HP switch Comp shell thermo Discharge thermo Crankcase heater w Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 2 Fan motor output kW 0 060 0 060 Airflow OUTDOOR UNIT m min CFM 110 3 880 120 4 230 Defrost method Rever
23. Screen u lt gt gt 5 5 Select the type of data to be displayed After selecting go to step 6 Compressor information MENU button Cumulative _ gt ON OFF Number gt Operating current Display operation time COMP ON COMP ON COMP ON x10 HOURS x100 TIMES CURRENT A Outdoor unit information ON OFF button Heat exchanger gt Comp discharge y gt Outdoor ambient Display temperature temperature temperature OUTDOOR UNIT OUTDOOR UNIT OUTDOOR UNIT H EXC TEMP OUTLET TEMP OUTDOOR TEMP Indoor unit information button Indoor room Heat exchanger Filter operatin g p g temperature temperature time Display INDOOR UNIT INDOOR UNIT INDOOR UNIT INLET TEMP H EXC TEMP FILTER USE H 6 Press the FILTER a button to confirm the setting Display example for accumulated operating time I 1 After approx 12 340 hours 10 seconds ly ae Display gt u A N Blinking Waiting for response 7 Data is displayed on the display at To check the data for each item repeat steps 5 to 7 8 To cancel maintenance mode press the TEST button for 3 seconds or press the MD ON OFF button m Refrigerant address Single refrigerant system Multi refrigerant system group control In the case of single refrigerant system the refrigerant address Up to 16 refrigerant
24. Address forwarding from unit processor is not transmitted normally because of defective transmission processor hardware 50 Turn off the power supply of outdoor unit indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again System returns normally if abnormality was accidental malfunction If the same abnormality generates again abnormality generated controller may be defective Error Code Abnormal points and detection method Case Judgment and action NO ACK signal 1 Transmitting side controller detects abnormal if a message was transmitted but there is no reply ACK that a message was received Transmitting side detects abnormality every 30 seconds 6 times continuously Note The address and attribute displayed at remote controller indicate the controller that did not reply ACK Common factor that has no relation with abnormality source The unit of former address does not exist as address switch has changed while the unit was energized Extinction of transmission wire voltage and signal is caused by over range transmission wire Maximum distance 200m Remote controller line 12m Extinction of transmission wire voltage and signal is caused by type unmatched transmission wire With shield wire CVVS CPEVS With normal wire no shield VCTF VCTFK CVV CVS VVR VVF VCT Diameter 1 25mm7 or more E
25. Check the voltage between S1 and S2 on the terminal block TB4 of the indoor unit which is used to connect the indoor unit and the outdoor unit NO AC 198V to AC 264V Check the status Not lighting of the indoor controller gt goard LEDS dispia Check the looseness or disconnection of the indoor outdoor connecting wire Blinking Are there looseness or disconnection of the indoor outdoor connecting wire Check the refrigerant address of the outdoor unit SW1 3 to 1 6 Check the LED display of the outdoor unit after turning on the main power again Not displayed Is anything displayed Displayed Is EA or Eb NO displayed Is E8 displayed NO Can the unit be restarted an all the indoor unit be operated Check the voltage between S2 and S3 on the terminal block of the outdoor unit OCH527B NO DC 17V to DC 28V YES 57 e Breaking or poor contact of the indoor outdoor connecting wire Normal Only the unit which has the refrigerant address 0 supplies power to the remote controller lt Defective outdoor controller circuit board lt Defective outdoor controller circuit board lt Defective indoor controller board Influence of electromagnetic noise e Defective outdoor power circuit board e Defective indoor power board
26. Example When 105 C 0 5 secs 0 5secs 2 secs 1 gt 05 OCH527B 94 12 FUNCTION SETTING 12 1 UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set as necessary using the remote controller The setting of function for each unit can only be done by the remote controller Select function available from the table 1 lt Table 1 gt Function selections 1 Functions available when setting the unit number to 00 Select 00 referring to setting the indoor unit number 6 Initial setting when sent from the factory IH Function Settings Mode No Setting No Power failure OFF automatic recovery JON 01 Indoor temperature Average data from each indoor unit detecting 1 Data from the indoor unit with remote controller 02 Data from main remote controller LOSSNAY Not supported connectivity Supported Indoor unit does not intake outdoor air through LOSSNAY 03 Supported Indoor unit intakes outdoor air through LOSSNAY Power supply 240V 04 voltage 220V 230V Frost prevention 2C Normal 15 temperature 3C Humidifier control When the compressor operates the humidifier also operates 16 When the fan operates the humidifier also operates Change of Standard defrosting control For high humidity Refrigerant leakage 70 ZRP35 50 80 ZRP60 140 setting e The setting is e applied to all the units in t
27. Maintenance information can be viewed even if the air conditioner is stopped lg Remote controller button information ON OFF sfa MITSUBISHI ELECTRIC Operation mode Compressor information Outdoor unit information Indoor unit information Confirm Tike GOE OMENU OON OFF hall N FILTER gt amp Gap G G G Sara 39820 CHECK TEST ED G GD GED PAR 21MAA CaN Activate cancel maintenance mode 1 Press the TEST button for 3 seconds to switch to maintenance mode Display MAINTENANCE If stable operation is unnecessary or if you want to check the data with the air conditioner stopped skip to step 4 Fixed Hz operation The operating frequency can be fixed to stabilize operation of inverter model If the air conditioner is currently stopped start it by this operation 2 Press the MODE button to select the desired operation mode Stable cooling Stable heating Stable operation Display operation operation cancellation COOL HEAT STABLE MODE STABLE MODE STABLE MODE CANCEL 3 Press the FILTER a button to confirm the setting Display Waiting for stabilization os on oog Stabilized sos After 10 to 20 minutes OCH527B 120 e Data measurement When the operation is stabilized measure operation data as explained below 4 Press the TEMP buttons Cv and CA to select the desired refrigerant address
28. gt 15 gt t Indoor pipe temperature Cond Eva 39 88 TH5 on error occurring When the temperature is 0 C or less and 39 88 temperature are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs 15 gt Outdoor pipe temperature 2 phase 39 88 TH6 on error occurring When the temperature is 0 C or less and 39 88 temperature are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs gt 15 gt Outdoor ambient temperature TH7 on 39 88 error occurring When the temperature is 0 C or less and 39 88 temperature are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs 515 gt Outdoor heatsink temperature TH8 on 40 200 error occurring When the temperature is 0 C or less and 40 200 temperature are displayed by turns When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns OCH527B 92 SW2 setting Display detail The black square MM indicates a switch position Explanation for display Discharge superheat on error occurring Cooling TH4 TH6 Heating TH4 TH5
29. v6 Bulnow 104 ajpueH oe Moyoouy lou Burdid 1e y Ez ne inoyoouy 26 joy Buidid yuos4 Z lou Buun sey Inoyoouy noyoouy 2 2 joy Burm Ajddns samo aloy uuna 1u6ii noyoouyz26 2 joy Buum A ddns samo 7 9 Z ajou Buidid iy noyoouy oy Bunun yuos4 Inoyoouyz2 z joy Burm Ajddns samod sieq JOH Inoyoouy Buldid Burow 10 pueH IC IC Burow 10 pueH L yeu 1y Pece Bulaow 104 lpueH you g S 88 S1 44 YEU AY TOY uol oo uollo uu09 FATWA dOLS Jo URLOPU Ly e you g g z 6 3uv1 yglul 11y OPIS 7 d uonoauuos adid qinO 1 wesebujay V 13 uollo uuoo adid sy5 Juevabujay SOON JO du exg oee 1903 TORKU 009 6 OLW log uonepunoj s lou p uolou pedeys N Z ayejuj IV JOY PUHZ ZRP60VHA PUHZ ZRP71VHA OYEIU ANY OPIS mojaq pue seed uBli Juo SU0I 991ID p WO apeW aq ueo Su0l 99uuo2 Bum pue Buldig uey SS91 0 WONNOS 7 lt u u oq uoyepuno4 gt evo paseyound ag 1snuu Si8ysem pue sllog slloq OLN u OREpUNOJ p UIW Aju yun ay 1 81NDES sP d 4 aoeds S 014800 00S 1940
30. 0 046 Airflow m min CFM 45 1 590 OUTDOOR UNIT Defrost method Reverse cycle Noise level Cooling dB 44 Heating dB 46 Dimensions W mm in 809 62 31 13 16 2 7 16 D mm in 300 11 3 16 H mm in 630 24 13 16 Weight kg Ibs 43 95 46 101 Refrigerant R410A Charge kg Ibs 2 2 4 8 2 4 5 3 Oil Model L 0 35 FV50S 0 50 FV50S Pipe size O D Liquid mmi in 6 35 1 4 Gas mm in 12 7 1 2 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp Height difference Max 30m lt Ct cc LU 2 Ll LU cc outdoor unit Piping length Service Ref PUHZ ZRP60VHA Max 50m PUHZ ZRP71VHA Mode Cooling Heating Cooling Heating Power supply phase cycle voltage Max current Single 50Hz 230V 19 External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model SNB130FGCM1 SNB172FSHM1 Motor output 1 2 1 3 Starter type Inverter Protection devices HP switch Comp shell thermo Discharge thermo Crankcase heater Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 1 Fan motor output kW 0 06 Airflow m min CFM 55 1 940
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32. Check pipe lt liquid or condenser evaporator gt temperature with room temperature display on remote controller and outdoor controller circuit board Pipe lt liquid or condenser evaporator gt temperature display is indicated by setting SW2 of outdoor controller circuit board as follows Temperature display of indoor condenser evaporator pipe Indoor 1 1 2 3 4 5 6 Conduct temperature check with outdoor controller circuit board after connecting A Control Service Tool PAC SK52ST Temperature display of indoor liquid pipe Indoor 1 Temperature display of indoor condenser evaporator pipe Indoor 2 1 2 3 4 5 6 Temperature display of indoor liquid pipe Indoor 2 A Control Service Tool SW2 setting Check converse connection of extension pipe or converse wiring of indoor outdoor unit connecting wire Error Code Abnormal points and detection method Case Judgment and action Error Code Abnormal refrigerant circuit During Cooling Dry or Auto Cooling operation when the following are regarded as failures when detected for one second a The compressor continues to run for 30 or more seconds b The liquid pipe temperature or the condense evaporator temperature is 75 C or more These detected errors will not be cancelled until the power source is reset lt M NET communication error gt Abnormal points and detection method Abn
33. M NET board 12V power supply ZE REXEKRE arsos o Serial er R NG 000000 communication with outdoor board SW1 LED1 Switch for Energizing communication display of display between M NET board M NET and board 5V power supply CND Power supply 5V 12V input SWI SW a to 5V DC Input a Bs esti e M NET address 1s digit to 12V DC Input 10s aign 11 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS 1 Function of switches The black square MM indicates a switch position Action by the switch operation ON OFF Function Effective timing When compressor is working in heating operation 1 Abnormal history clear Clear Normal off or operating Forced defrost 1 Start Normal 7 Refrigerant address setting When power supply ON mms ee ag 123456 esas ee gan 123456 123456 123456 12 14 Test run Operating OFF Test run mode setting Heating Cooling Under suspension Pump down Start Normal Under suspension 1 Forced defrost should be done as follows Change the DIP SW1 1 on the outdoor controller board from OFF to ON Forced defrost will start by the above operation if all these conditions written below are satisfied lt Heat mode setting e 10 minutes have passed s
34. V and A button to set the numbers 4 4 Display change setting 1 Temperature display C F setting To switch the setting press the ON OFF button C The temperature unit C is used F The temperature unit F is used 2 Room air temperature display setting To switch the setting press the ON OFF button ON The room air temperature is displayed OFF The room air temperature is not displayed 3 Automatic cooling heating display setting To switch the setting press the ON OFF button ON One of Automatic cooling and Automatic heating is displayed under the automatic mode is running OFF Only Automatic is displayed under the automatic mode CALL_ 13 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 13 1 HOW TO MONITOR THE OPERATION DATA 13 1 1 PAR 30MAA PAR 31MAA Details on the operation data including each thermistor temperature and error history can be confirmed with the remote controller Select Service from the Main menu and press the Q button Select Check with the F1 or F2 button and press the Q button Select Request code with the F1 o F2 button and press the Q button Check menu 1 1 Error history Refrigerant volume check Refrigerant leak check Smooth maintenance gt Request code Service menu ang
35. o Service menu 1 2 Test run Input maintenance info Function setting Check gt Self check Main menu 5 Se With the F1 or F2 button enter the refrigerant address and press the V button Self check Ref address B Select Y _ Address Error code unit number attribute will appear will appear if no error history is available Self check Ref address 8 Error 4 Unt 1 Grp IC Return 9 Reset When there is no error history Self check M NET address ule fh Contact OFF Return 9 Reset Resetting the error history Press the F4 button Reset on the screen that shows the error history gt A confirmation screen will appear asking if you want to delete the error history gg Press the F4 button OK to delete the error history If deletion fails Request rejected will appear Unit not exist will appear if no indoor units that are correspond to the entered address are found Navigating through the screens To go back to the Main menu button To return to the previous screen button OCH527B 35 Self check Ref address 8 Delete error history Self check Ref address b Error history deleted Return 11 3 2 Remote controller check lt PAR 30MAA gt lt PAR 3
36. 21S4 Solenoid Valve Four Way Valve LO1 LOZLO3INO Connection Terminal lt L1 L2 L3 N Power Supply gt CN31 Connector lt Emergency Operation gt 63H High Pressure Switch GD1 GD3 Connection Terminal lt Ground gt CN3S Connector lt Connector for Option gt TH3 TH33 Thermistor lt Outdoor Pipe gt CONV B Converter Circuit Board CNDM Connector lt Connection for Option Contact Input gt TH4 Thermistor lt Discharge gt L1 A1 IN _ Connection Terminal lt L1 Power Supply gt CN51 Connector lt Connection for Option gt TH6 Thermistor lt Outdoor 2 Phase Pipe gt L1 A2 OU Connection Terminal lt L1 Power Supply gt 55 Connector lt Connection for Option gt TH7 Thermistor lt Outdoor gt L2 A2 OU Connection Terminal lt L2 Power Supply gt CNM Connector lt A Control Service Inspection Kit gt TH8 Thermistor lt Heat Sink gt L3 A2 OU Connection Terminal lt L3 Power Supply gt CNMNT Connector TH32 Thermistor lt Comp surface gt N IN Connection Terminal lt Connect to Optional M NET Adapter Board gt LEV A LEV B LEV C Electronic Expansion Valve CK OU Connection Terminal CNVMNT Connector ACL1 ACL4 Reactor C B Controller Circuit Board lt Connect to Optional M NET Adapter Board gt CK Capacitor SWI Switch lt Manual Defrost Defect History Record LED1 LED2 LED lt Operation Inspection Indicators gt RS Rush Current Protect Resistor Reset Refrigerant Adress gt F1 F4 FUSE lt T6 3AL250V gt P B Power Circuit Board SW4 Switch lt Tes
37. 3 blinking Freezing cooling overheating heating protection Check if indoor unit has a short cycle on its air duct Check if heat exchanger and filter is not dirty Measure resistance value on indoor and outdoor fan motors Check if the inside of refrigerant piping is not clogged 4 blinking Abnormality of pipe temperature 1 Error code displayed on remote controller 2 Refer to service manual for indoor unit OCH527B Check if indoor thermistors TH2 and TH5 are not disconnected from holder Check if stop valve is open Check converse connection of extension pipe on plural units connection Check if indoor outdoor connecting wire is connected correctly on plural units connection 85 lt Outdoor unit operation monitor function gt When optional part A Control Service Tool PAC SK52ST is connected to outdoor controller board CNM Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on A Control Service Tool Operation indicator SW2 Indicator change of self diagnosis SW2 setting Display detail Explanation for display ON 123456 lt Digital indicator LED1 working details gt Be sure that the 1 to 6 in the SW2 are set to OFF 1 Display when the power supply ON When the power supply ON blinking displays by turns 1 second Wait for 4 minutes at the longest inter
38. CHECK lights and refrigerant address e gerant 00 flashes SAMIPA some display e Check that the remote controller s CHECK display has stopped before continuing display 2 Press the temperature 0 Select the refrigerant address of the Temperature buttons indoor unit for the self diagnosis button J n ON OFF TEMP Note Set refrigerant address using the LG os outdoor unit s DIP switch SW1 a x For more information see the outdoor unit installation manual TO Lx FAN AUTO STOP J le Oo Ka MODE VANE AUTOSTAR 3 Point the remote controller at the If an air conditioner error occurs the lt i e OUR sensor on the indoor unit and indoor unit s sensor emits an intermittent CHECK LOUVER h press the HOUR button buzzer sound the operation light CHECK STAN feces flashes and the error code is output button It takes 3 seconds at most for error code to appear a SET RESET CLOCK fe i 4 4 Point the remote controller atthe The check mode is cancelled sensor on the indoor unit and press the ON OFF button OCH527B 39 e Refer to the following tables for details on the check codes Output pattern A Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION __ hisler fel 1 ne 14 26 Repeated INDICATOR a A P 5 lamp flash Off On O On On Off On On pattern Self check Approx 2 5 sec 0 5 sec 0 5 sec 0 5 sec 0 5 sec App
39. IU air temp 28 C IU HEX temp 18 C IU filter time 128 Hr Return 14 1 2 PAR 21MAA e Reduces maintenance work drastically e Enables you to check operation data of the indoor and outdoor units by remote controller Furthermore use of maintenance stable operation control that fixes the operating frequency allows smooth inspection even for inverter models Smooth Mainte nance Function aC UCAS Me e Conventional inspection work aa MITSUBISHI ELECTO eOutdoor unit elndoor unit Remove the Measure _ G service panel the intake air A temperature MY A I Jy Sai Easy maintenance information unit P I 6 Accumulated operating Heat exchanger Intake air uu lt time x10 hours temperature C temperature C LLL pen Number of ONOFF Discharge Heat exchanger times x10 times temperature temperature C Operating Outside air Filter operating current A temperature C time Hours The filter operating time is the time that has elapsed since the filter was reset lt Maintenance mode operation method gt If you are going to use lt GUIDE FOR OPERATION CONDITION gt set the airflow to High before activating maintenance mode e Switching to maintenance mode Maintenance mode can be activated either when the air conditioner is operated or stopped It cannot be activated during test run
40. PUHZ ZRP71VHA SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block lt Power Supply Indoor Outdoor gt PFC Converter Fi 4 Fuse lt T6 3AL250V gt MC Motor for Compressor CB1 CB3 Main Smoothing Capacitor SWP Switch lt Pump Down gt MF1 Fan Motor N F Noise Filter Circuit Board CN31 Connector lt Emergency Operation gt 21S4 So
41. Re check error by turning off power and on again Remote controller signal receiving error is detected by indoor unit Remote controller transmitting error is detected by indoor unit 4 blinking Error code is not defined Check if remote controller is MA remote controller PAR 21MAA Check if noise entered into transmission wire of remote controller Check if noise entered into indoor outdoor connecting wire Re check error by turning off power and on again Be sure to replace the 4 way valve Check refrigerant pipes for disconnection or leakage After the recovery of refrigerant vacuum dry the whole refrigerant circuit Refer to section 11 6 HOW TO CHECK THE PARTS Check refrigerant circuit for operation 5 blinking Serial cee fi ee Check if connector CN4 on outdoor controller board and controller board and outdoor power outdoor power board is not disconnected mataas A KA eveen ioti Check if there is poor connection of connector on outdoor AS SOnIORT board and M NET P C board gt controller board CNMNT and CNVMNT Communication error of M NET Check M NET communication signal system 1 Error code displayed on remote controller OCH527B 84 Indication Outdoor controller board LED1 Green LED2 Red Contents Inspection method Detailed 3 blinking 1 blinking Abnormality of shell thermistor TH32 and
42. Set the Refrigerant address and Request code Select the item to be changed with the Select the required setting with the F3 tad u lt Ref address gt setting 0 15 m lt Request code gt setting Press the button Data will be collected and displayed Request code Ref address E Request code 8004 Request V 906 Request code 004 Discharge temperature 69 C Request code b Ref address ol Request code 884 69 Request VY lt Operation state gt Request code 0 Data display PENDA NEH Operation mode Relay output state 1 Operation mode Display Operation mode 0 STOP lt FAN C COOL DRY H HEAT d Defrost OCH527B 2 Relay output state 2 5 Compressor Four way valve Solenoid valve 0 os Kn 1 ON 2 ON 3 ON ON 4 ON 5 ON ON 6 ON ON 7 ON ON ON 8 ON A ON ON 108 13 1 2 PAR 21MAA Turnonthe Monitoring the operation data C ata MITSUBISHI ELECTRIC TExample Request code 004 Discharge temperature 69 C a ere co Retigerant address 00 aa o aa 3 TEMP ON OFF 7 TO Tipe OO38E OMENU OON OFF hll X enten 5 A Maintenance mode G GD am as S o 1 B Refrigerant address PAR 21MAA Vi OE C Data display area 4 2 6 D R
43. Set the operation mode cooling heating using SW4 2 lt SW4 gt Turn on SW4 1 to start test run with the operation mode set by SW4 2 Turn off SW4 1 to finish the test run ON lt There may be a faint knocking sound around the machine room after power is supplied but this is OFF i no problem with product because the linear expansion pipe is just moving to adjust opening pulse lt There may be a knocking sound around the machine room for several seconds after compressor starts operating but this is no problem with product because the check valve itself generates the Stop Operation sound because pressure difference is small in the refrigerant circuit Cooling Heating Note The operation mode cannot be changed by SW4 2 during test run To change test run mode stop the unit by SW4 1 change the operation mode and restart the test run by SW4 1 OCH527B 28 11 TROUBLESHOOTING 11 1 TROUBLESHOOTING lt Error code display by self diagnosis and actions to be taken for service summary gt Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit Actions to be taken for service which depends on whether or not the trouble is reoccurring at service are summarized in the table below Check the contents below before investigating details Unit conditions at service Error code Actions to be taken for service summary Displaved
44. TH33 Thermistor RO 15kQ 3 B constant 3480 2 d 1 Rt 15exp 3480 zzz 373 0C 15ko 30 C 4 3kQ 10C 9 6kQ 40 C 3 0kQ 20C 6 3kQ 25C 5 2kQ Medium temperature thermistor e Thermistor lt Heatsink gt TH8 ZRP35 71V ZRP100 140Y only Thermistor R50 17kQ 2 B constant 4150 3 1 1 Rt 17exp 4150 57354 323 OC 180kQ 25C 50kQ 50 C 17kQ 70 C 8kQ 90 C 4kQ High temperature thermistor e Thermistor lt Discharge gt THA e Thermistor lt Comp surface gt TH32 Thermistor R120 7 465kQ 2 B constant 4057 2 1 1 Rt 7 465exp 4057 5734 393 20C 250kQ 70 C 34kQ 30C 160kQ 80 C 24kQ 40C 104kQ 90 C 17 5kQ 50C 70kQ 100 13 0kQ 60C 48kQ 110C 9 8kQ OCH527B 65 50 IN Q Resistance kQ kQ Resistance Resistance k wo Oo N 200 20 10_0 Temperature C 10 20 30 40 50 150 100 50 500 400 300 ye 100 25 25 100 Temperature C 50 75 Temperature C 125 100 Linear expansion valve ZRP35 ZRP71 1 Operation summary of the linear expansion valve e Linear expansion valve opens closes through stepping motor after receiving the pulse signal from the outdoor controller board e Valve position can be changed in proportion to th
45. TI Refrigerant address 01 M NET address 03 x Group G Refrigerant address 00 M NET address 04 LL A control remote controller Refrigera address 81 F A control nai remote Refrigerant address 02 address 05 In group B M NET address of the outdoor unit whose refrigerant address is 00 is not set to the minimum in the group As 3 is right for this situation the setting is wrong Taking group A as a good sample set the minimum M NET address in the group for the outdoor unit whose refrigerant address is 00 OCH527B 25 10 REFRIGERANT SYSTEM DIAGRAM PUHZ ZRP35VKA Unit mm inch PUHZ ZRP50VKA Thermistor TH7 Heat exchanger Outdoor lt 1 Solenoid vave N Charge plug IN Four way valve Stop valve with service port Thermistor TH6 Outdoor 2 phase pipe Refrigerant GAS pipe J connection 1 2F Strainer Thermistor TH3 50 Outdoor pipe Ja Distributor High pressure switch 63H Thermistor TH4 Strainer Discharge 100 N e Thermistor TH32 Comp surface ___ Thermistor TH33 l Outdoor pipe Linear expansion valve B Strainer 100 Stop valve Refrigerant LIQUID pipe connection 1 4F Strainer 100 Refrigerant flow in cooling Refrigerant flow in heating PUHZ ZRP60VHA PUHZ ZRP71VHA Thermistor TH7 Heat exchanger
46. V IP2I IW N2 U N2 iV IN2I IW Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc Note The marks L1 IL2 L3 IN1 IN2 P14 P2 L UJ V and W shown in the diagram are not actually printed on the board N TB U TB V TB W Connect to the CK capacitor Connect to the compressor MC Diode module we eee Voltage among phases 10V 400V AC roo n3708 e e ocoooooooooo oo o core B N 10 e gt 6 TAB connector MEL e i on X52CA A Ji i Connect to the RS resistor TB L1 Rae 09 201 TB L2 TB L3 Connect to the outdoor converter HE 0 circuit board i L1 OU L2 OU e r lt e L3 0U 400V AC CN4 CN5 CN7 L3OUT L3IN Connect to the Detection of primary Connect to the Lead connect outdoor controller current Connect to outdoor converter circuit board CN4 the outdoor noise filter circuit board CN7 circuit board CNCT CN2 CN6 Connect to the outdoor controller circuit board CN2 Thermistor Power circuit bo
47. e Check if there is breaking or poor contact of the remote controller wire Check the voltage of the terminal block TB5 connecting the remote controller wire If it is not between DC 10V and DC16V the indoor controller board must be defective e Check if the remote controller wire is short circuited e Replace the indoor controller board lt Before repair Frequent calling from customers Phone Calls From Customers How to Respond Unit does not operate at all The operating display of remote controller does not come on Check if power is supplied to air conditioner Nothing appears on the display unless power is supplied Unit cannot be restarted for a while after it s stopped Wait around 3 minutes to restart unit The air conditioner is in a state of being protected by the microcomputer s directive Once the compressor is stopped the unit cannot be restarted for 3 minutes This control is also applied when the unit is turned on and off by remote controller Error code appears and blinks on the display of remote controller Error code will be displayed if any protection devices of the air conditioner are actuated What is error code Refer to SELF DIAGNOSIS ACTION TABLE J Check if servicing is required for the error Remote controller PLEASE WAIT is displayed on the screen Wait around 2 minutes An automatic startup test wil
48. increases All the conditions in A or B are detected simultaneously for 10 minutes continu ously after 6 minutes past from compres sor start up including the thermostat indication or recovery from defrosting lt Condition A gt Heating mode When discharge superheat is less than 70 deg When the TH6 temp is more than the value obtained by TH7 5 deg When the condensing temp of TH5 is less than 35 C lt Condition B gt e During compressor operation Cooling and Heating e When discharge superheat is less than 80 deg in Cooling e When discharge superheat is less than 90 deg in Heating When condensing temp of TH6 is more than 40 C In Cooling only 3 Abnormal if comp surface temperature thermistor TH32 exceeds 125 C or 110 C continuously for 5 minutes Overheated compressor operation caused by shortage of refrigerant Defective operation of stop valve Defective thermistor Defective outdoor controller board Defective action of linear expansion valve Check intake superheat Check leakage of refrigerant Charge additional refrigerant Check if stop valve is fully open Turn the power off and check if U3 is displayed when the power is on again When U3 is displayed refer to Judgement and action for U3 Check linear expansion valve Refer to 11 6 U3 TH4 5104 TH32 5132 Open short circuit of discharge temperature the
49. k x AS Dimension B Outside Dimension B diameter R410A 1 4 9 1 9 0 1 4 6 35 17 0 3 8 13 2 13 0 3 8 9 52 1 2 16 6 16 2 1 2 12 70 5 8 19 7 19 4 5 8 3 4 23 3 15 88 Tools for R410A The following table shows whether conventional tools can be used or not Tools and materials Gauge manifold Charge hose Gas leak detector Use Air purge refrigerant charge and operation check Gas leak check R410A tools Tool exclusive for R410A Can R22 tools be used mm R22 17 0 22 0 36 0mm for 24 0 indoor unit 27 0 of RP100 125 and 140 Can R407C tools be used Tool exclusive for R410A Tool for HFC refrigerant Refrigerant recovery equipment Refrigerant recovery Tool exclusive for R410A Refrigerant cylinder Refrigerant charge Tool exclusive for R410A Applied oil Apply to flared section Ester oil and alkylbenzene oil minimum amount Ester oil O Alkylbenzene oil minimum amount Safety charger Charge valve Prevent compressor malfunction when charging refrigerant by spraying liquid refrigerant Prevent gas from blowing out when detaching charge hose Tool exclusive for R410A Tool exclusive for R410A x x x Vacuum pump Vacuum drying and air purge Tools for other refrigerants can be used if equipped with adap ter for reverse flow check
50. 1 written above Symptoms in test run mode i OUTDOOR BOARD LED Displ Cause Remote Controller Display ooo I dere Remote controller displays PLEASE After startup is displayed only After power is turned on PLEASE WAIT is displayed for 2 WAIT and cannot be operated green lights up lt 00 gt minutes during system startup Normal Ba a Aan a blink Incorrect connection of outdoor terminal block L1 L2 Lsand alternately lt F1 gt S1 S2 S3 After startup is displayed green once and red twice blink e Outdoor unit s protection devise connector is open alternately lt F3 F5 F9 gt After startup is displayed Incorrect wiring between the indoor and outdoor unit Polarity green twice and red once blink is wrong for S1 S2 S3 alternately lt EA Eb gt Remote controller transmission wire short e There is no outdoor unit of address 0 Address is other than 0 e Remote controller transmission wire open Display appears but soon disappears After startup is displayed only After canceling function selection operation is not possible for even when remote controller is operated _ green lights up lt 00 gt about 30 seconds Normal After power is turned on PLEASE WAIT is displayed for 3 minutes then error code is displayed No display appears even when remote controller operation switch is turned on Operation lamp does not light up After
51. 11 3 5 Remote controller check lt PAR 21MAA gt If the air conditioner cannot be operated from the remote controller diagnose the remote controller as explained below If the correct voltage DC12 V is not supplied to the remote controller the ZELF CHECK indicator will not light O First check that the power on indicator is lit If this occurs check the remote controller s wiring and the indoor unit Power on indicator Switch to the remote controller self diagnosis mode Pressthe CHECK button inthe picture inthe previous page Press the FILTER button in the picture in the previous page for 5 seconds or more The display content will change as shown below to start self diagnosis Lr SELF CHECK NAN KL Remote controller self diagnosis result When the remote controller is functioning correctly When the remote controller malfunctions Error display 1 NG blinks The remote controller s transmitting receiv ing circuit is defective SELF CHECK SELF CHECK r c r SHES _ _ RE A RPE Check for other possible causes as there is no problem with the remote The remote controller must be replaced with a new one controller Where the remote controller is not defective but cannot be operated Error display 2 E3 6833 or 6832 blinks Transmission is not possible Error display 3 ERC and the number of data e
52. 3 from the fixing screws front 2 from the right and 2 from the left side and detach the front panel 4 Remove the back panel fixing screws 4 x 10 5 from the Front panel right and 2 from the rear side and detach the back panel fixing screws 5 Remove 2 grille fixing screw 4 x 10 and detach the grille Photo 2 Front panel Service panel Service panel fixing screw 2 hooks 2 Removing the fan motor Photo 3 Electrical parts box 1 Remove the top panel See Photo 1 Basa 2 Remove the front panel See Photo 1 op 3 Remove 1 nut M6 left screw and detach the propeller 4 Disconnect the connector CNF1 on the controller circuit board in the electrical parts box 5 Loosen the clamp for the lead wire in the motor support 6 Remove 4 fan motor fixing screws 5 x 20 and detach the fan motor See Photo 4 Photo 4 Fan motor fixing screws Clamp Fan motor MF1 Motor support Fan motor fixing screws OCH527B 126 OPERATING PROCEDURE PHOTOS 3 Removing the electrical parts box 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Photo 1 4 Remove the back panel See Photo 1 5 Disconnect the indoor outdoor connecting wire from terminal block 6 Disconnect the connector CNF1 LEV A and LEV B on the controller circuit board lt Symbols on the board gt e CNF1 Fan motor e LEV A LEV B LEV 7 Disconnect
53. CENTRALLY CONTROLLED is not displayed on the remote controller If CEN TRALLY CONTROLLED is displayed the refrigerant collecting pump down cannot be completed normally Start up of the indoor outdoor communication takes about 3 minutes after the power circuit breaker is turned on Start the pump down operation 3 to 4 minutes after the power circuit breaker is turned on Perform the refrigerant collecting operation cooling test run Push the pump down SWP switch push button type on the control board of the outdoor unit The compressor and ventilators indoor and outdoor units start operating refrigerant collecting operation begins LED1 and LED2 on the control board of the outdoor unit are lit Only push the pump down SWP switch if the unit is stopped However even if the unit is stopped and the pump down SWP switch is pushed less than 3 minutes after the compressor stops the refrigerant collecting operation cannot be performed Wait until the compressor has been stopped for 3 minutes and then push the pump down SWP switch again Fully close the ball valve on the gas pipe side of the outdoor unit when the pressure gauge on the gauge manifold shows 0 05 to 0 MPa Gauge approx 0 5 to 0 kgf cm and quickly stop the air conditioner Because the unit automatically stops in about 3 minutes when the refrigerant collecting operation is completed LED1 off LED2 lit be sure to quickly close the gas ball valve However
54. Removing the thermistor lt Outdoor gt TH7 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 6 red on the controller circuit board in the electrical parts box 4 Loosen the 2 wire clamps on top of the electrical parts box See Photo 11 5 Pull out the thermistor lt Outdoor gt TH7 from the sensor holder Note When replacing thermistor lt Outdoor gt TH7 replace it together with thermistor lt Outdoor 2 phase pipe gt TH6 since they are combined together Refer to procedure No 5 above to remove thermistor lt Outdoor 2 phase pipe gt Lead wire of thermistor lt Outdoor gt TH7 Sensor holder 7 Removing the thermistor lt Outdoor pipe gt TH3 TH33 and thermistor lt Discharge gt TH4 thermistor lt Comp surface gt TH32 1 Remove the service panel See Photo 1 2 Disconnect the connectors TH3 white and TH4 white TH33 yellow TH32 black on the controller circuit board in the electrical parts box 3 Loosen the clamp for the lead wire under the electrical parts box 4 Pull out the thermistor lt Outdoor pipe gt TH3 TH33 and thermistor lt Discharge gt TH4 from the sensor holder TH33 See Figure 1 Removing the thermistor lt Comp surface gt TH32 5 Remove the sound proof cover upper for compressor 6 Pull out the thermistor lt Comp surface gt TH32 from the holder of the compress
55. SWI Switch lt Forced Defrost Defect History Record lt Connected to Optional M NET Adapter Board gt TH8 Thermistor internal lt Heat Sink gt Reset Refrigerant Address gt CNDM Connector TH32 Thermistor lt Comp surface gt SW4 Switch lt Test Operation gt lt Connected for Option Contact Input gt LEV A LEV B LEV C Electronic Expansion Valve SW5 Switch lt Function Switch gt LED1 LED2 LED lt Operation Inspection Indicators gt DCL Reactor SW6 Switch lt Model Select gt F1 F4 Fuse lt T6 3AL250V gt CB Main Smoothing Capacitor SW7 Switch lt Function Setup gt X51 X52 Relay cY1 CY2 Capacitor SW8 Switch lt Function Setup gt P B Power Circuit Board SWI Switch U V W Connection Terminal lt U V W Phase gt SWP Switch lt Pump Down gt 140 only INC AH I When M NET adapter is connected i i oO ge aan Salamah o 63H LEVA LEVB TH33 TH32TH7 THE TH3 TH4 Jeng M M I 5 Cc B 15 3 5 n i kd EI RI ri 1 ep Omn pep pea Gage eg kei a LES 3 TH33 TH32 TH7 6 TH3 THA LEVA LEVB CNVMNT CNMNT s 2 s E 2 LMNETADAPTER YLW BLK RED WHT WHT WHT RED eoo WHT WHT ges lem fe CNM Ono Z CNF2 8 85 lve pessosssosoosg SEE o TOD Win MF2 11g 9999 13 Y u BLU 1 WHT 3 m ee 1 CNM e MS 63H 3 YW WHT se CN52C a CN31 4 CN2 CN4 RED WHT WHT 13 ec ea 2 TRANS A AGr 12 999 BE 19 a Gg 9990090 Q Sz alo PNK a 3 Eig 7 Ge Sle F2 F3 a z t w FT
56. This is not a malfunction 1 When the HEAT operation starts to prevent the unit from blowing cold air the fan speed is gradually increased from zero to the set speed in proportion to the temperature rise of the discharged air 2 When the room temperature reaches the set temperature and the outdoor unit stops the unit starts the LOW AIR operation 3 During the HEAT operation the DEFROST operation is performed to defrost the outdoor unit During the DEFROST operation the blower is stopped to prevent cold air coming out of the indoor unit 60 The up down vane will be automatically set to horizontal blow in these cases listed up on the left O After a while the up down vane will be automatically moved according to the setting of the remote controller Phone Calls From Customers How to Respond Note Something is wrong with the blower Air blows out for a while after HEAT operation is stopped This is not a malfunction The blower is operating just for cooling down the heated up air conditioner This will be done within 1 minute This control is conducted only when the HEAT operation is stopped with the electric heater ON However this control is also applied to the models which has no electric heater Something is wrong with the airflow direction The airflow direction is changed during COOL operation If the up down vane is set to downward in COOL ope
57. Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc If they are short circuited it means that they are broken 1 Check of Diode DS1 DS2 P R IPI IS IN R IN IS 2 Check of Q1 P IN 3 Check of IPM P NI P U P V PI W INI UJ NI V IN W P N keeps being shirt circuited until the smoothing condenser is charged by a tester Note The marks P IN IR S JU V and W are not actually printed on the board shown in the diagram lt CAUTION gt TEST POINT CNF1O is high voltage Communication power supply D71 Voltage 24V DC CNDM to Input of low level sound priority mode to Input of external contact point CN51 External signal output Compressor operating signal e Abnormal signal LEV A B CNVMNT Connect to M NET adapter CND 2194 Linear expansion valve TH4 Thermistor lt Discharge gt TH3 Thermistor Four way valve lt Outdoor pipe gt TH7 6 CNMNT Connect to M NET adapter CN5 Connect to AC Reactor Diode DS1 Zi 9 Di
58. ZRP35 71VHA Abnormal increase in power source voltage Decrease in power source voltage instantaneous stop Disconnection of compressor wiring Misconnection of reactor ACL Defective outdoor power circuit board Defective reactor ACL Disconnection or loose connection of CN2 on the outdoor power circuit board controller circuit board MO Check the field facility for the power supply Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Correct the wiring of reactor ACL Replace outdoor power circuit board Replace reactor ACL Check CN2 wiring PFC IGBT error Undervoltage e When Compressor is running DC bus voltage stays at 310V or lower for consecutive 10 seconds ZRP60 71VHA ZRP100 140VKA Incorrect switch settings on the outdoor controller circuit board for model select Defective outdoor power circuit board Defective outdoor controller circuit board Correction of a model select Replace outdoor power circuit board Replace outdoor controller circuit board Over heat protection Abnormal if outdoor pipe thermistor TH3 detects 70 C or more during compressor operation Defective outdoor fan fan motor or short cycle of outdoor unit during cooling operation Defective outdoor pipe thermistor TH3 Defective outdoor controller board Check outdoor unit air passage
59. Zero cross signal 0 5 V DC 3 4 18 V DC 6 5 16 V DC 7 5 16 V DC CN52C CNDC 52C driving signal 280 380 V DC Connect to the outdoor Connect to the outdoor controller circuit board controller circuit board E2 E3 CN52C CNDC Connect to the earth HAND 7 LING N U V W P2 DCL1 DCL2 El E4 CNAC1 CNAC2 NI LI Connect to the compres Connect to the smooth Connect to DCL Connect to the 230 VAC Voltage of 230 V AC is sor MC Voltage among ing capacitor CB earth Connect to the out input Connect to the phases 10 V 180 V AC door controller circuit terminal block TB1 OCH527B board CNAC 77 A Outdoor power circuit board Brief Check of POWER MODULE PUHZ ZRP100YKA Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc PUHZ ZRP125YKA If they are short circuited it means that they are broken PUHZ ZRP1 40YKA 1 Check of DIODE MODULE L1j P1 L2j P1 L3 Pi L1 N1 IL2 N1 L3 N1 2 Check of DIP IPM P2 U IP2j V IP2 W N2 U N2j V N2 W
60. 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 4 4 Remove 4 back cover panel fixing screws 5 x 12 and remove the back cover panel 5 Remove the electrical parts box See Photo 4 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 then remove the valve bed 7 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel 8 Recover refrigerant 9 Remove 4 welded pipes of power receiver inlet and outlet 10 Remove 2 receiver leg fixing screws 4 x 10 Note Recover refrigerant without spreading it in the air OCH527B 140 Photo 11 Inlet Outlet Power receiver Compressor Receiver leg MC fixing screws PUHZ ZRP100YKA PUHZ ZRP125YKA PUHZ ZRP100YKAR1 PUHZ ZRP125YKA OPERATING PROCEDURE PUHZ ZRP140YKA PUHZ ZRP140YKAR1 PHOTOS R1 1 Removing the service panel and top panel 1 Remove 3 service panel fixing screws 5 x 12 and slide the hook on the right downward to remove the service panel 2 Remove screws 3 for front 3 for rear 5 x 12 of the top panel and remove it Photo 1 Grille fixing screws Top panel z pp FA Z4 Service panel Top panel fixing screws 2 Remove the top panel See Photo 1 3 Remove 4 fan grille fixing screws 5 x 12 to detach
61. A Usable if equipped with adapter for rever se flow A Usable if equipped with adapter for rever se flow Flare tool Flaring work of piping Tools for other refrigerants can be used by adjusting flaring dimension A Usable by adjusting flaring dimension A Usable by adjusting flaring dimension Bender Bend the pipes Tools for other refrigerants can be used Pipe cutter Cut the pipes Tools for other refrigerants can be used Welder and nitrogen gas cylinder Weld the pipes Tools for other refrigerants can be used Refrigerant charging scale Refrigerant charge Tools for other refrigerants can be used Vacuum gauge or thermis tor vacuum gauge and vacuum valve Check the degree of vacuum Vacuum valve prevents back flow of oil and refri gerant to thermistor vacuum gauge Tools for other refrigerants can be used Charging cylinder Refrigerant charge Tool exclusive for R410A x Prepare a new tool Use the new tool as the tool exclusive for R410A A Tools for other refrigerants can be used under certain conditions Tools for other refrigerants can be used OCH527B 4 FEATURES 8685855550 j 555555558558 Y PUHZ ZRP35VKA PUHZ ZRP60VHA PUHZ ZRP50VKA PUHZ ZRP71VHA PUHZ ZRP100VKA PUHZ ZRP125VKA PUHZ ZRP140VKA PUHZ ZRP100YKA PUHZ ZRP125YKA PUHZ ZRP140YKA PUHZ ZRP100YKAR1 PU
62. Bas Er asa Ti st ss sls wn ea 34 GRN WHT 2154 2 L K P B HHR EY 5 CN52C 1 Ne 1 CN 7 1 3 RED WHT WHT 1 INNA 52C Kn BLK 1 MODEL SELECT The black square IB indicates a swi ch position MODEL SW6 SW5 6 2 ON m WHO TON 100V OFF OFF ERER E 1234 8 on 67 on Em EE ON 125V OFF OFF EEE E 12345678 SL B ol Wm ON ON 140V OFF E B BERBER oF 12345678 123456 2 SW5 1 to 5 Function Switch OCH527B NAME Terminal Block lt M net connection gt Connector lt Transmission gt Connector lt Power Supply gt A S 5 ov CY2 a a 7E pea L Niis s2 sa TB1 INDOOR dong unr POWER SUPPLY N 230V 50Hz M NET ADAPTER SYMBOL TB7 CNS CND CN2M Connector lt M NET communication gt 18 PUHZ ZRP100YKA PUHZ ZRP125YKA PUHZ ZRP140YKA
63. How to finish the initial learning Once the unit s operation is stabilized the initial learning is completed Press button for more than 3 seconds to cancel the initial leaning The initial learning can also be cancelled by pressing button OCH527B 124 3 How to start Judgment of refrigerant leakage mode To know the current condition of refrigerant amount same operation must be performed Please repeat the same procedure as when Initial learning operation for Checking operation Press CLOCK G button and select the GAS LEAK JUDGE Refrigerant leakage detection Refrigerant leakage initial teaching detection judgment GAS LEAK GAS LEAK TEST START JUDGE Press CFILTER button to confirm Display LOADING 2 l L 5 Flash Display S asno C gt 0 Waiting for response Loading Judgment Display C indication Meaning setting 80 0 Refrigerant leakage is less than 20 of initial condition 20 Refrigerant leakage is more than 20 of initial condition 8888 Error No initial data is available lt Note gt for judgment can be changed by Unit function setting of remote controller Selectable either 80 initial setting or 60 Refer to 12 1 Mode No 21 When the for judgment is changed please start Initial learning O about 1 minute and cancel Then please start Judgment of refrigerant leakage mode O
64. Judge what is wrong and take a corrective action according oe to 11 4 SELF DIAGNOSIS ACTION TABLE The trouble is reoccurring f Conduct trouble shooting and ascertain the cause of the Not displayed trouble according to 11 5 TROUBLESHOOTING OF PROBLEMS Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor poor connection of wiring noise and etc Re check the symptom and check the installation environment refrigerant amount weather when the trouble occurred matters related to wiring and etc Reset error code logs and restart the unit after finishing service There is no abnormality in electrical component controller board remote controller and etc The trouble is not reoccurring Re check the abnormal symptom Conduct trouble shooting and ascertain the cause of the trouble according to 11 5 TROUBLESHOOTING OF PROBLEMS Not logged Continue to operate unit for the time being if the cause is not ascertained There is no abnormality concerning of parts such as electrical component controller board remote controller and etc 11 2 CHECK POINT UNDER TEST RUN 11 2 1 Before test run lt After installation of indoor and outdoor units piping work and electric wiring work re check that there is no refrigerant leak age loosened connections and incorrect polarity lt Measure impedance between the ground and
65. Outdoor controller circuit board TH3 TH6 TH7 Outdoor power circuit board CN3 Defective thermistor Defective outdoor controller circuit board Thermistors Check connection of connector TH3 TH6 TH7 on the outdoor controller circuit board Check connection of connector CN3 on the outdoor power circuit board Check breaking of the lead wire for thermistor TH3 TH6 TH7 TH8 Refer to 11 9 Check resistance value of thermistor TH3 TH6 TH7 TH8 or check temperature by microprocessor Thermistor TH3 TH6 TH7 TH8 Refer to 11 6 SW2 on A Control Service Tool Refer to 11 10 Replace outdoor controller circuit board Emergency operation is available in case of abnormalities of TH3 TH6 and TH7 Refer to 11 8 Short detection Name Open detection Thermistor lt Outdoor pipe gt 40 C or below 90 C or above Thermistor lt Outdoor 2 phase pipe gt 40 C or below 90 C or above Thermistor lt Outdoor gt 40 or below 90 C or above Thermistor lt Heatsink gt ZRP35 71V ZRP100 140Y 27C or below 102 C or above Internal thermistor ZRP100 140V 35C or below 170 C or above Temperature of heatsink Abnormal if heatsink thermistor TH8 detects temperature indicated below ZRP35 50 60 ZRP100V 100Y ZRP125 140V 125 140Y The outdoor fan motor is locked Failure of outdoor fan motor Air flow path is clogged Rise of
66. and remove the back cover panel 5 Remove the electrical parts box See Photo 4 and stop valve fixing screws 5 x 16 and then remove the valve bed of the unit and then remove the right side panel 8 Recover refrigerant 10 Remove 2 receiver leg fixing screws 4 x 10 Note Recover refrigerant without spreading it in the air 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve 7 Remove 3 right side panel fixing screws 5 x 12 in the rear 9 Remove 4 welded pipes of power receiver inlet and outlet Photo 19 Power receiver Receiver leg fixing screws Compressor MO MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2012 MITSUBISHI ELECTRIC CORPORATION Distributed in Jul 2013 No OCH527 REVISED EDITION B Distributed in Feb 2013 No OCH527 REVISED EDITION A Distributed in Nov 2012 No OCH527 Made in Japan New publication effective Jul 2013 Specifications are subject to change without notice
67. errors Refer to the technical manual for the outdoor unit 1 If the beeper does not sound again after the initial 2 beeps to confirm the self check start signal was received and the OPERATION INDICATOR lamp does not come on there are no error records 2 If the beeper sounds 3 times continuously beep beep beep 0 4 0 4 0 4 sec after the initial 2 beeps to confirm the self check start signal was received the specified refrigerant address is incorrect 3 The check code in the parenthesis indicates PAR 30MAA model 40 OCH527B 11 4 SELF DIAGNOSIS ACTION TABLE lt Abnormalities detected when the power is put on gt Error Code Abnormal points and detection method Case Note 1 Refer to indoor unit section for code P and code E Judgment and action No voltage is supplied to termi nal block TB1 of outdoor unit a Power supply breaker is turned off b Contact failure or disconnec tion of power supply terminal c Open phase L L2 or N phase Electric power is not supplied to power supply terminal of out door power circuit board a Contact failure of power supply terminal b Open phase on the outdoor power circuit board Disconnection of terminal on outdoor power circuit board Electric power is not supplied to outdoor controller circuit board a Disconnection of connector CNDC Disconnection of reactor DCL or ACL Disconnection of outdoor noise fil
68. heard sometimes This is not a malfunction This is the sound which is heard when the flow of refrigerant in the air conditioner is switched A cracking sound is heard sometimes This is not a malfunction This is the sound which is heard when internal parts of units expand or contract when the temperature changes A buzzing sound is heard sometimes This is not a malfunction This is the sound which is heard when the outdoor unit starts operating Aticking sound is heard from the outdoor unit sometimes This is not a malfunction This is the sound which is heard when the fan of the outdoor unit is controlling the airflow amount in order to keep the optimum operating condition Asound similar to water flowing is heard from the unit This is not a malfunction This is the sound which is heard when the refrigerant is flowing inside the indoor unit Something is wrong with the The fan speed does not match the setting of the remote controller during DRY operation No air comes out sometimes during DRY operation This is not a malfunction During the DRY operation the blower s ON OFF is controlled by the microcomputer to prevent overcooling and to ensure efficient dehumidification The fan speed cannot be set by the remote controller during DRY operation The fan speed does not match the setting of the remote controller in HEAT operation OCH527B
69. i ia r a wer Eea NG EA 33 bods BY oo bossed bossed os Bod LINA Nga 13 12 1 4 12 21 1 6 1 6131 5 lel Scie T MS 4 TH33 TH32 TH7 6 TH3 THA LEV A LEV B CNVMNT CNMNT S j AE ADAPTER YLW BLK RED WHT WHT WHT RED WHT WHT s 623E cf gay gt fo 2 cp 5 es 2 fen wl looooo000000000 E en cem amp Ol OLS 63H WHT SE Cha YLW CN52C 3 CN2 CN4 RED ae __J WHT WHT ae ST f TRANS 12 6 slo CNDC 1 Ri 2 EE iB PNK 2238 I 5 T ip F2 CNAG F3 3 5 BE CNS WHT x x 6 Jol WHT e slo RED RED RED Puw WHT mmg WHT WHT N F ACL MS MC 35 WATNU 2 P B k HEE pa CN5 1 RED 2 CN4 1 BLK WHT 2 rT CN3 1 WHT 2 1 CN2 WHT h 7 BLK N 7 1 MODEL SELECT The black square W indicates a switch position MODEL SW6 SW5 6 2 cov o Ba aaa Wi c TEE OFF OFF 12345678 123456 3 gt O a o ld i Ba gt SHH 71V OFF OFF al eSlas 12345678 123456 ME yo 2 SW5 1 to 5 Function Switch D M NET ADAPTER SYMBOL NAME TB7 Terminal Block lt M net connection gt CNS Connector lt Transmission gt wy CND Connector lt Power Supply gt POWER SUPPLY CN2M Connector lt M NET communication gt OCH 527B N 230V 50Hz 17 PUHZ ZRP100VKA PUHZ ZRP125VKA PUHZ ZRP140VKA
70. if LED1 is lit LED2 is off and the unit is stopped open the liquid stop valve completely close the valve completely after 3 minutes or more have passed and then repeat step Open the gas ball valve completely If the refrigerant collecting operation has been completed normally LED1 off LED2 lit the unit will remain stopped until the power supply is turned off Note that when the extension piping is very long with a large refrigerant amount it may not be possible to perform a pump down operation In this case use refrigerant recovery equipment to collect all of the refrigerant in the system Turn off the power supply circuit breaker remove the gauge manifold and then disconnect the refrigerant pipes A Warning When pumping down the refrigerant stop the compressor before disconnecting the refrigerant pipes lt If the refrigerant pipes are disconnected while the compressor is operating and the stop valve ball valve is open the pressure in the refrigeration cycle could become extremely high if air is drawn in causing the pipes to burst personal injury etc 10 2 START AND FINISH OF TEST RUN lt Operation from the indoor unit Execute the test run using the installation manual for the indoor unit lt Operation from the outdoor unit By using the DIP switch SW4 on the control board of outdoor unit test run can be started and finished and its operation mode cooling heating can be set up
71. indoor controller board could not receive a signal for 3 minutes from outdoor controller circuit board a signal which allows outdoor controller circuit board to transmit signals Contact failure short circuit or miswiring converse wiring of indoor outdoor unit connecting wire Defective transmitting receiving circuit of outdoor controller circuit board Defective transmitting receiving circuit of indoor controller board Noise has entered into indoor outdoor unit connecting wire Defective fan motor Defective rush current resistor of outdoor power circuit board Check LED display on outdoor controller circuit board Connect A Control service tool PAC SK52ST Refer to EA EC item if LED displays EA AC Check disconnecting or looseness of indoor outdoor unit connecting wire of indoor unit or outdoor unit Check all the units in case of twin triple quadruple indoor unit system Turn the power off and on again to check If abnormality generates again replace indoor controller board or outdoor controller circuit board Other indoor controller board may have defect in case of twin triple quadruple indoor unit system Turn the power off and detach fan motor from connector CNF1 2 Then turn the power on again If abnormality is not displayed replace fan motor If abnormality is displayed replace outdoor controller circuit board Check the rush current resistor on outdoor pow
72. indoor unit s installation manual or service handbook Alternating Display SELF CHECK NEH SELF CHECK ae tw ERRQR CODE SrA o A its nn B N LILI Error code 2 or 4 mms Address 3 digits or unit number 2 digits lt When there is no error code history gt lt When there is no corresponding unit gt Reset the error history Display the error history in the diagnosis result display screen see step SELF CHECK D SELF CHECK A ae GODE lt pam v mm HS __ mm its LI LI LILI FILS OCH527B 37 Press the ON OFF button O in the picture in the previous page twice When the error history is reset the display will look like the one shown below within 3 seconds The self diagnosis address or refrigerant address will blink However ifyou fail to reset the error history the error content will be displayed again SELF CHECK SELFCHECK D gt J riin a ng kasi nn Oye a LILI o LILI Cancel self diagnosis Self diagnosis can be cancelled by the following 2 methods Press the CHECK button in the picture in the previous page Self diagnosis will be cancelled and the screen will return to the previous state in effect twice within 3 seconds before the start of self diagnosis Press the MD ON OFF button in the picture in the previous page gt Self diagnosis will be cancelled and the indoor unit will stop
73. menu button e To return to the previous screen button OCH527B 97 Service menu 1 2 gt Test run Input maintenance info Function setting Check Self check Main menu 9 v Service menu 2 2 gt Maintenance password Remote controller check Main menu 9 Cursor A Service menu Not available Please stop the unit Service menu lt Function setting gt Select Service from the Main menu and press the Q button Senice men 12 est run Input maintenance info yr gt Function setting Check Self check Select Function setting with the F1 or F2 button and press the V button eee Set the indoor unit refrigerant addresses and unit numbers with the F1 Function setting gt Ref address through F4 buttons and then press the button to confirm the current ie Na SAN setting Grp lt Checking the indoor unit No gt Monitor Z When the Q button is pressed the target indoor unit will start fan operation If the unit is common or when running all units all indoor units for the selected SS es refrigerant address will start fan operation Z When data collection from the indoor units is completed the current settings Function setting appears highlighted Ref address 8 Grp WA Non highlighted it
74. mode End check mode on the wireless remote controller s operation area the unit ends function selection mode automatically if nothing is input for 10 minutes or longer Operating instructions Check the function settings Press the gt button twice continuously gt is lit and 00 blinks Press the temp 0 button once to set 50 Direct the wireless remote controller toward the receiver of the indoor unit and press the button Set the unit number Press the temp button to set the unit number Press 01 to specify the indoor unit whose unit number is 01 Direct the wireless remote controller toward the receiver of the indoor unit and press the button By setting unit number with the button specified indoor unit starts performing fan operation Detect which unit is assigned to which number using this function If unit number is set to AL all the indoor units in same refrigerant system start performing fan operation simultaneously If a unit number that cannot be recognized by the unit is entered 3 beeps of 0 4 seconds will be heard Reenter the unit number setting If the signal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the unit number setting Select a mode Press the temp 0 button to set a mode Press 24 to turn on the function that raises the set temperature by 4 degree during heat operation Direct the wireless remote controller to
75. occurred Check to see if there are any sources of noise or interference near the transmission path Note If you have made operational mistakes during this procedure exit function selection see step and then restart from step Set the indoor unit number I Press the ON OFF button Oin the picture in the previous page so that Press the CLOCK buttons C v D gt and C A D inthe picture in the co ispl d previous page to select the unit number of the indoor unit for which you want to perfo flashesi the Unitnuraber display ates function selection The unit number changes to 00 01 02 03 04 and AL eact time a button is pressed Na 7 nn u PUMETION S SELECTION g a cay Unit number display section Scy To set modes 01 to 06 or 15 to 22 select unit number 00 To set modes 07 to 14 or 23 to 28 carry out as follows To set each indoor unit individually select 01 to 04 To set all the indoor units collectively select AL Confirm the refrigerant address and unit number Press the MODE button in the picture in the previous page to confirm When the refrigerant address and unit number are confirmed by pressing the the refrigerant address and unit number MODE button in the picture in the previous page the corresponding After a while will start to flash in the mode numb
76. open error 04 PFC error 10 14 90 Code display SW2 setting Display detail The black square MM indicates a switch position Explanation for display ON DC bus voltage 150 400 ZRP35 140V 300 750 ZRP100 140Y 150 400 RP35 140V 300 750 RP100 140Y When it is 100V or more hundreds digit tens digit and ones digit are displayed by turns Capacity save 0 100 When air conditioner is connected to M NET and capacity save mode is demanded 0 100 is displayed When there is no setting of capacity save 100 is displayed 0 100 When the capacity is 100 hundreds digit tens digit and ones digit are displayed by turns Example When 100 0 5 secs 0 5secs 2 secs i gt 00 gt Error postponement code history 2 of outdoor unit Postponement code display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in case of no postponement Code display Error postponement code history 3 of outdoor unit Postponement code display Blinking During postponement Lighting Cancellation of postponement Code 00 is displayed in case of no postponement display Error code history 3 Oldest Alternate display of abnormal unit number and code When no error history 0 and
77. outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1 0MQ a MITSUBISHI ELECTRIC Turn on the main power to the unit Sj m Press the button twice continuously hal Start this operation from the status of remote controller display a INI turned off A r J and current operation mode are displayed ON OFF TEMP Press the 5 onm button to activate cos mode then 0 4 check whether cool air is blown out from the unit Press the 5 0 button to activate 47 mode then check whether warm air is blown out from the unit FAN 20 FAN AUTO STOP Me Press the c button and check whether strong air is blown out i MODE VANE AUTOSTAR from the unit lt 5 Press the button and check whether the auto vane operates CHECK Louver h properly Ra Press the ON OFF button to stop the test run TEST RU min Note SET neker QO lt Point the remote controller towards the indoor unit receiver while following steps to Q lt It is not possible to run in FAN DRY or AUTO mode OCH527B 34 11 3 HOW TO PROCEED SELF DIAGNOSIS 11 3 1 Self diagnosis lt PAR 30MAA gt lt PAR 31MAA gt Select Service from the Main menu and press the button amp Select Self check with the or button and press the button
78. paris bok See Photo 4 4 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 5 Pull out the lead wire of high pressure switch 6 Recover refrigerant 7 Remove the welded part of high pressure switch Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized Photo 9 Lead wire of high pressure switch High pressure switch 63H 11 Removing the reactor ACL 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box See Photo 4 4 Remove 3 reactor fixing screws 4 x 16 and remove the reactor The reactor is attached to the rear of the electrical parts box OCH527B 134 Photo 10 Reactor fixing screw Electrical parts box Reactor fixing screws OPERATING PROCEDURE PHOTOS 12 Removing the compressor MC 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 1 4 Remove 2 back cover panel fixing screws 5 x 12 and remov
79. same time compares the data and when detecting it judges different data to be abnormal 30 continuous times Error code E5 2 remote controller are set as main In case of 2 remote controllers Remote controller is connected with 2 indoor units or more Repetition of refrigerant address Defective transmitting receiving circuit of remote controller Defective transmitting receiving circuit of indoor controller board Noise has entered into transmission wire of remote controller Set a remote controller to main and the other to sub Remote controller is connected with only one indoor unit The address changes to a separate setting Diagnose remote controller a When RC OK is displayed remote controllers have no problem Turn the power off and on again to check When becoming abnormal again replace indoor controller board b When RC NG is displayed replace remote controller c When RC E3 or ERC 00 66 is displayed noise may be causing abnormality Indoor outdoor unit communication error Signal receiving error Abnormal if indoor controller board could not receive any signal normally for 6 minutes after turning the power on Abnormal if indoor controller board could not receive any signal normally for 3 minutes Consider the unit as abnormal under the following condition When 2 or more indoor units are connected to an outdoor unit
80. systems 16 outdoor units can be con is 00 and no operation is required nected as a group by 1 remote controller To check or set the Simultaneous twin triple units belong to this category refrigerant addresses single refrigerant system 1 1 Twin Refrigerant Refrigerant Refrigerant Refrigerant Refrigerant Refrigerant address address address address address 00 address 00 Outdoor unit Indoor unit 01 Remote controller Outdoor unit Indoor unit 01 15 Outdoor unit Indoor unit 01 02 Outdoor unit Indoor unit 01 01 Outdoor unit Indoor unit 01 00 Outdoor unit Indoor unit 01 Remote controller Indoor unit 02 Remote controller OCH527B 121 lt Guide for opration condition gt ja inepe ae ee Ti Check Poinis gt Breaker Good Retightened s 9 S Terminal block Outdoor Unit Good Retightened 2 8 8 Indoor Unit Good Retightened z Insulation resistance MQ z Voltage V cm Accumulated operating time Time p essor _Number of ON OFF times Times Current A e Refrigerant heat exchanger temperature COOL C HEAT c 8 Refrigerant discharge temperature COOL C HEAT c 5 a _Air outside air temperature COOL C HEAT c 5 Air discharge temperature COOL C HEAT C s Appearance Good Cleaning reguired 9 5 y Heat exchanger Good Cleaning required Sou
81. the indoor outdoor connection cable otherwise it may result in a smoke a fire or communication failure Synchronized twin and triple system Electrical wiring e Synchronized twin 1 1 system Electrical wiring 4 N 4 N Outdoor Indoor Outdoor Indoor Indoor oy unit uni es unit _ Y unit i i i Bone Pm Unit i i Oli I Remote BI controller ower controller supply 1 Indoor outdoor 2 Euppiy pe gii Indoor outdoor 1 i 1 I unit connecnon s i i i unit connection 1 i i i cable cable 1 isi 1 Sp 1 Gi 1 Gi Earth leakage breaker Earth leakage breaker 62 6 gt D wiring circuit breaker or i wiring circuit breaker or i 1 i i i isolating switch isolating switch 63 63 3 f eme OO SH S we ON Sey e Synchronized triple a N Outdoor Indoor Indoor Indoor 12 unit unit unit unit I Tl UTAR TAL TA Unit l Remote Oli pona i l bHcontroller JP O o mol indoor outdoor i ty connection cable 1 Earth s 4 JO HO TOES Earth leakage breaker 1 wiring circuit breaker or i L aa isolating switch 63 T 63 63 63 Wah OCH527B 21 9 2 SEPARATE INDOOR UNIT OUTDOOR UNIT
82. the pipe side connections of the following parts e 4 way valve 21S4 e Thermistor lt Outdoor pipe gt TH3 TH33 e Thermistor lt Comp surface gt TH32 e Thermistor lt Discharge gt TH4 e Thermistor lt Outdoor 2 phase pipe Outdoor gt TH6 7 e High pressure switch 63H 8 Remove the terminal cover and disconnect the compressor lead wire 9 Remove the electrical parts box fixing screws 1 from the front and 1 from the top side and detach the electrical parts box by pulling it upward Electrical parts box Photo 5 fixing screw Controller circuit Electrical part box board C B Terminal block Compressor MC Terminal cover 4 Removing the thermistor lt Outdoor 2 phase pipe gt TH6 and thermistor lt Outdoor pipe gt TH3 TH33 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Photo 1 4 Remove the back panel fixing screws 5 from the right and 2 from the rear side and detach the back panel See Photo 1 5 Disconnect the connector TH3 white or TH6 7 red or TH33 yellow on the controller circuit board in the electrical parts box 6 Loosen the clamp for the lead wire in the rear of the electrical parts box 7 Pull out the thermistor lt Outdoor pipe gt TH3 TH33 and thermistor lt Outdoor 2 phase pipe gt TH6 from the sensor holder Note Replace the thermistor lt Outdoor 2 phase pipe gt TH6 and the
83. the power supply terminal block L N on the outdoor unit by 500V Megger and check that it is 1 0MQ or over Do not use 500V Megger to indoor outdoor connecting wire terminal block S1 S2 S3 and remote controller terminal block 1 2 This may cause malfunction lt Make sure that test run switch SW4 is set to OFF before turning on power supply e Turn on power supply 12 hours before test run in order to protect compressor lt For specific models which require higher ceiling settings or auto recovery feature from power failure make proper changes of settings referring to the description of 11 FUNCTION SETTING Make sure to read operation manual before test run Especially items to secure safety OCH527B 29 a MITSUBISHI ELECTRIC 11 2 2 Test run for wired remote controller lt PAR 30MAA gt lt PAR 31MAA gt 000 MENU RETURN SELECT ON OFF Function buttons Fi F2 F3 F4 Select Service from the Main menu and press the Q button Servicemenu 1 2 gt Test run Input maintenance info y Function setting Check Self check Select Test run with the F1 or F2 button and press the C button Main menu 9 mim Fl F2 F3 F4 _ Select Test run with the F1 or F2 button and press the button Test run menu gt Test run Drain pump te
84. way A Pulse number 1 1 1 1 1 1 1 1 1 Open i 1 1 1 1 1 1 1 1 1 1 1 1 Extra tightening about 32 pulse OCH527B 67 3 How to attach and detach the coil of linear expansion valve ZRP35 ZRP71 lt Composition gt Linear expansion valve is separable into the main body and the coil as shown in the diagram below Coil Main body Lead wire Stopper lt How to detach the coil gt Hold the lower part of the main body shown as A firmly so that t the main body does not move and detach the coil by pulling it upward Be sure to detach the coil holding main body firmly Otherwise pipes can bend due to pressure A lt How to attach the coil gt mca Hold the lower part of the main body shown as A firmly so that Lege i i the main body does not move and attach the coil by inserting it i downward into the main body Then securely attach the coil stop E per to pipe B At this time be careful that stress is not added to 1 lead wire and main body is not wound by lead wire If the stop per is not firmly attached to pipe B coil may be detached from the main body and that can cause defective operation of linear Bese expansion valve i To prevent piping stress be sure to attach the coil holding the main body of linear expansion valve firmly Otherwise pipe may break B A Be sure to attach the stopper to pipe B OCH527B 68 4 How to attach and detach the coil
85. 0 Note When reassembling the electrical parts box make sure the wirings are correct Photo 6 Noise filter circuit board N F at m E lt Screw Controller circuit board C B Photo 7 Bottom plate of electrical parts box Screw Screw Electrical parts Heatsink gt Box Photo 8 Screw Screw Bottom plate of electrical parts box Photo 9 Noise filter f Controller Electrical parts box circuit board circuit board Photo 10 Y N F B Z C B Converter Screw N screw circuit board V CONV B PN Power circuit a a board P B a Noise filter circuit board N F OCH527B 142 OPERATING PROCEDURE PHOTOS 5 Removing the thermistor lt Outdoor 2 phase pipe gt TH6 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 6 red on the controller circuit board in the electrical parts box 4 Loosen the 2 wire clamps on top of the electrical parts box 5 Pull out the thermistor lt Outdoor 2 phase pipe gt TH6 from the sensor holder Note When replacing thermistor lt Outdoor 2 phase pipe gt TH6 replace it together with thermistor lt Outdoor gt TH7 since they are combined together Refer to procedure No 6 below to remove thermistor lt Outdoor gt Photo 11 Thermistor lt Outdoor 2 phase pipe gt TH6 Electrical parts box 6
86. 0 255 When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns Example When 150 C 0 5 secs 0 5secs 2 secs gt 50 gt Sub cool on error occurring SC 0 130 Cooling TH6 TH3 Heating TH5 TH2 0 130 When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns Example When 115 C 0 5 secs 0 5secs 2 secs 1 15 gt Thermo on time until error stops 0 999 0 999 When it is 100 minutes or more hundreds digit tens digit and ones digit are displayed by turns Example When 415 minutes 0 5 secs 4 gt 15 gt 0 5secs 2 secs Minute Indoor pipe temperature Liquid TH2 3 Indoor 3 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns Indoor pipe temperature Cond Eva TH5 3 Indoor 3 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns When there is no indoor unit 00 is displayed Indoor pipe temperature Liquid TH2 4 Indoor 4 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns OCH527B
87. 0 125 140Y Outdoor unit power supply 50 He 290 V 50 He 230 V 50 He 230 V SoHE 230V BOH 400 Outdoor unit input capacity main switch Breaker 1 16A 25A 32 A 40 A 16A x lt Outdoor unit power supply 3 x Min 1 5 3 x Min 2 5 3 x Min 4 3 x Min 6 5 x Min 1 5 BSE Indoor unit Outdoor unit 2 3 x 1 5 Polar 3 x 1 5 Polar 3 x 1 5 Polar 3 x 1 5 Polar 3 x 1 5 Polar See Indoor unit Outdoor unit earth 2 1 x Min 1 5 1 x Min 1 5 1 x Min 1 5 1 x Min 1 5 1 x Min 1 5 a Remote controller Indoor unit 3 2 x 0 3 Non polar 2 x 0 3 Non polar 2 x 0 3 Non polar 2 x 0 3 Non polar 2 x 0 3 Non polar Spa kN ee 3 phase AC 230 V AC 230 V AC 230 V AC 230 V AC 230 V Indoor unit Outdoor unit S1 S2 4 AC 230 V AC 230 V AC 230 V AC 230 V AC 230 V 3 Indoor unit Outdoor unit S2 S3 4 DC 24 V DC 24 V DC 24 V DC 24 V DC 24 V Remote controller Indoor unit 4 DC 12V DC 12V DC 12V DC 12V DC 12 V 1 A breaker with at least 3 0 mm contact separation in each pole shall be provided Use earth leakage breaker NV Make sure that the current leakage breaker is one compatible with higher harmonics Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter 3 The 10 m wire is attached in the remote controller accessory The use of an inadequate breaker can cause the incorrect operation of inverter la ef s s 4 The figures are NOT always against the ground 2
88. 00VKA PUHZ ZRP125 140VKA MODE SPLIB LINE PUHZ ZRP100YKA MODE SENG IENE PUHZ ZRP125 140YKA Goounal so Te COOLING 49 PUHZ ZRP100YKAR1 HEATING 51 e e PUHZ ZRP125 140YKARTIHEATING 5 e e 90 _ 90 7 5 s a 80 o 80 z T 9 70 m 70 s s gt 60 a 60 Lu gt l ii 50 w 50 s 5 3 no PA 0 ig i 40 40 a 2 Z 9 30 9 30 I lt a t 1 lt E 1 m 20 PROXIMATE F aa 1 m 20 APPROXIMATE is F F w n tq mam u AD DENG gt HEARING FOR i t 4 L lt 3 aka J E lt CONTINUOUS F F t jea Noes Ps p 1 fea NOISE F 1 z F 4 8 10 F q T 10 F q q 63 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz BAND CENTER FREQUENCIES Hz OCH527B 6 4 STANDARD OPERATION DATA Representative matching PLA ZRP35BA PLA ZRP50BA PLA ZRP60BA PLA ZRP71BA Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 3 600 4 100 5 000 6 000 6 100 7 000 7 100 8 000 Input 0 79 0 86 1 43 1 57 2 04 1 78 1 77 1 99 Indoor unit PL
89. 110 3 880 120 4 230 Defrost method Reverse cycle Noise level Cooling dB 49 50 Heating dB 51 52 Dimensions Ww mm in 1 050 41 5 16 D mm in 330 30 13 1 3 16 H mm in 1 338 52 11 16 Weight kg Ibs 124 273 126 278 132 291 Refrigerant R410A Charge kg Ibs 5 0 11 0 Oil Model L 1 40 FV50S Pipe size O D Liquid mmi in 9 52 3 8 Gas mmi in 15 88 5 8 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit REFRIGERANT PIPING OCH527B Height difference Max 30m Piping length Max 75m 6 DATA 6 1 REFILLING REFRIGERANT CHARGE R410A kg PUHZ ZRP35 140 Piping length one way Initial Service Ret charged PUHZ ZRP35VKA i 2 2 PUHZ ZRP50VKA A 2 4 PUHZ ZRP60VHA 3 5 PUHZ ZRP71VHA 3 3 5 PUHZ ZRP100VKA PUHZ ZRP100YKA i 5 0 PUHZ ZRP100YKAR1 PUHZ ZRP125VKA PUHZ ZRP125YKA PUHZ ZRP125YKAR1 PUHZ ZRP140VKA PUHZ ZRP140YKA PUHZ ZRP140YKAR1 Additional charge is required for pipes longer than 30 m 6 2 COMPRESSOR TECHNICAL DATA at 20 0 Service Ref PUHZ ZRP35VKA PUHZ ZRP50VKA PUHZ ZRP60VHA Compressor model SNB092FGCM SNB130FGCM2 SNB130FGCM1 Winding
90. 125YKA PUHZ ZRP140VKA PUHZ ZRP140YKA Phase Hz 1 8 50 1 3 50 1 3 50 Voltage 230 400 230 400 230 400 Current 11 18 3 95 11 27 3 98 16 77 5 93 15 93 5 63 18 86 6 67 20 36 7 20 Discharge pressure 2 58 2 43 2 75 2 81 2 73 2 78 Suction pressure 0 94 0 68 0 85 0 69 0 86 0 66 Discharge temperature 66 72 72 81 72 84 Condensing temperature 43 41 46 46 47 Suction temperature Refrigerant circuit 12 5 8 5 8 Ref pipe length 5 5 5 5 5 27 20 27 20 27 Intake air temperature 19 15 19 15 19 Indoor side Discharge air temperature 11 7 35 Intake air temperature Outdoor side B18 3 24 SHF BF The unit of pressure has been changed to NPa based on international Sl system The conversion factor is 1 MPa 10 2 kgf cm OCH527B 12 OUTLINES AND DIMENSIONS 7 mm Uni PUHZ ZRP35VKA PUHZ ZRP50VKA 42 4 LP awig ddse6 386 uod 89149S JO U0l99uUu0O i 9 a RAI joued S euu yes dp S 9 SYW14 ddpbi JO U0l 99Uuu0O Bn d abieyo 10 joued aoIMas z6r Bum JooplnO Ioopu lt lt uB Bum Ajddns Jamog lt lt 497 uonoauuo2 euwe 608 005 y
91. 1MAA gt If operations cannot be completed with the remote controller diagnose the remote controller with this function Select Service from the Main menu and press the button Service menu 2 2 Maintenance password gg Remote controller check Select Remote controller check with the F1 or F2 button and press the button Main menu 9 Se 06_ Select Remote controller check from the Service menu and press the Q but Remote controller check ton to start the remote controller check and see the check results NG Start checking To cancel the remote controller check and exit the Remote controller check menu screen press the or the 9 button k pao IC The remote controller will not reboot itself Fl FO F3 F4 Begin 4 OK No problems are found with the remote controller Check other remote controller check Te sul sereen parts for problems Remote controller check E3 6832 There is noise on the transmission line or the indoor unit or another remote controller is faulty Check the transmission line and the Start checking other remote controllers NG ALL0 ALL1 Send receive circuit fault Remote controller needs replacing ERC The number of data errors is the discrepancy between the number of bits in the data transmitted from the remote controller and that of the qata that was actually transmitted over the transmission line If data
92. 2 receiver leg fixing screws 4 x 10 Note Recover refrigerant without spreading it in the air OCH527B 135 Photo 12 Receiver leg fixing screws leg PUHZ ZRP100VKA PUHZ ZRP125VKA PUHZ ZRP140VKA OPERATING PROCEDURE PHOTOS 1 Removing the service panel and top panel Photo 1 1 Remove 3 service panel fixing screws 5 x 12 and slide the hook on the right downward to remove the service Top panel fixing screws panel go panel 2 Remove screws 3 for front 3 for rear 5 x 12 of the top a panel and remove it BA Service panel Grille fixing screws Grille fixing screws Service panel d fixing screws ma Cover panel fixing screws 2 Removing the fan motor MF1 MF2 1 Remove the service panel See Photo 1 Photos Ph010 3 2 Remove the top panel See Photo 1 3 Remove 4 fan grille fixing screws 5 x 12 to detach the fan grille See Photo 1 Propeller 4 Remove a nut for right handed screw of M6 to detach the propeller See Photo 2 5 Disconnect the connectors CNF1 CNF2 on controller circuit board in electrical parts box 6 Remove 4 fan motor fixing screws 5 x 20 to detach the fan motor See Photo 3 Fan motor fixing screws Fan motor Front panel Fan motor fixing screws 3 Removing the electrical parts box Photo 4 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the indoor outdoor connectin
93. 32 6 Remove the terminal cover and disconnect the compressor lead wire 7 Remove an electrical parts box fixing screw 4 x 10 and detach the electrical parts box by pulling it upward The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right OCH527B 131 Photo 4 Electrical parts box Electrical parts box fixing screw Terminal block ontroller circuit TB1 board C B OPERATING PROCEDURE PHOTOS 4 Removing the thermistor lt Outdoor 2 phase pipe gt TH6 Photo 5 Sistine 1 Remove the service panel See Photo 1 lt Outdoor 2 phase pipe gt 2 Remove the top panel See Photo 1 Controller Electrical parts box TH6 3 Disconnect the connector TH7 6 red on the controller circuit board in the electrical parts box 4 Loosen the clamp for the lead wire in the rear of the electrical parts box 5 Pull out the thermistor lt Outdoor 2 phase pipe gt TH6 from the sensor holder Note When replacing thermistor lt Outdoor 2 phase pipe gt TH6 replace it together with thermistor lt Outdoor gt TH7 since they are combined together Refer to proceudre No 5 below to remove thermistor lt Outdoor gt circuit board C B 5 Removing the thermistor lt Outdoor gt TH7 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 6 red on the controller circuit board in the electrical p
94. 4 and shell thermistor TH32 Open short of outdoor thermistors TH3 TH6 TH7 and TH8 Check if connectors TH3 TH4 TH6 TH7 and TH32 on outdoor controller board and connector CN3 on outdoor power board are not disconnected Measure resistance value of outdoor thermistors 6 blinking Abnormality of heatsink temperature Check if indoor outdoor units have a short cycle on their air ducts Measure resistance value of outdoor thermistor TH8 7 blinking Abnormality of voltage Check looseness disconnection and converse connection of compressor wiring Measure resistance value among terminals on compressor using a tester Check if power supply voltage decreases Check the wiring of CN52C 1 blinking Abnormality of room temperature thermistor TH1 Abnormality of pipe temperature thermistor Liquid TH2 Abnormality of pipe temperature thermistor Condenser Evaporator Check if connectors CN20 CN21 CN29 and CN44 on indoor controller board are not disconnected Measure resistance value of indoor thermistors 2 blinking Abnormality of drain sensor DS Float switch FS connector open Indoor drain overflow protection Check if connector CN31 CN4F on indoor controller board is not disconnected Measure resistance value of indoor thermistors Measure resistance value among terminals on drain pump using a tester Check if drain pump works Check drain function
95. 4 Way cassette Ceiling suspended Initial setting Factory setting Not available Floor Wall mounted standing PLA BA PCA KAQ PCA HAQ PKA HAL PKA KAL 100h 2500h No filter sign indicator Quiet Fan speed Standard No of air outlets High ceiling 4 directions Oo IN Oo N J 3 directions 2 directions Not supported o o loo no J e e e ellllil je LIITT Optional high efficiency Supported No vanes Vane No 3 setting PLA only Vane No 1 setting Optional humidifier Vane No 2 setting Not supported PLA only Supported Vane differential setting No 1 setting TH5 24 28 C in heating mode No 2 setting Standard TH5 28 32 C cold wind prevention No 3 setting TH5 32 38 C Swing Not available Swing PLA BA 53 Set temperature in heating Available Wave air flow Available mode 4 deg up 4 Not available Fan speed during the Extra low heating thermo OFF Stop Fan speed during the Set fan speed Set fan speed cooling thermo OFF Stop Available DO w N J PO PO Od N PO Oo N J N y e e e Detection of abnormality of the pipe temperature P8 Not available 1 PKA HAL KAL 2 deg up PEAD RP JA L Q Function Settings Nn Initial setting Setting No Factory se
96. 410kQ THA TH32 TH3 TH6 4 3kQ 9 6kQ TH7 TH33 TH8 39kQ 105kQ Open or short Fan motor MF1 MF2 Refer to next page Solenoid valve coil lt Four way valve gt 21S4 Measure the resistance between the terminals with a tester At the ambient temperature 20 C Normal Abnormal ZRP35 71 ZRP100 140 235041700 143541500 Open or short Motor for compressor MO Vv Measure the resistance between the terminals with a tester Winding temperature 20 C Normal Abnormal Refer to 5 2 Open or short Linear expansion valve LEV A LEV B For ZRP35 71 0 Lhe Blue Orange Yellow White Disconnect the connector then measure the resistance with a tester Winding temperature 20 C Normal Abnormal Red White Red Orange Red Yellow Red Blue 46440 Open or short Linear expansion valve LEV A LEV B LEV C For ZRP100 140 Disconnect the connector then measure the resistance with a tester Winding temperature 20 C Normal Abnormal Gray Black Gray Red Gray Yellow Gray Orange 462430 Open or short OCH527B 63 Check method of DC fan motor fan motor outdoor controller circuit board Notes High voltage is applied to the connecter CNF1 2 for the fan motor Pay attentio
97. A ZRP35BA PLA ZRP50BA PLA ZRP60BA PLA ZRP71BA Phase Hz 1 50 1 50 1 50 Voltage 230 230 230 Current 0 28 0 25 0 30 0 27 0 30 0 27 Outdoor unit Electrical circuit PUHZ ZRP35VKA PUHZ ZRP50VKA PUHZ ZRP60VHA PUHZ ZRP71VHA Phase Hz 1 50 1 50 1 50 Voltage 230 230 Current Discharge pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Refrigerant circuit Ref pipe length Intake air temperature Indoor side Discharge air temperature Intake air temperature Outdoor side 3 SHF BF The unit of pressure has been changed to NPa based on international Sl system The conversion factor is 1 MPa 10 2 kgf cm2 OCH527B 11 Representative matching PLA ZRP100BA PLA ZRP125BA PLA ZRP140BA Mode Cooling Heating Cooling Heating Cooling Heating Capacity 10 000 11 200 12 500 14 000 13 400 16 000 Input 2 60 2 61 3 87 3 67 4 37 4 70 Indoor unit PLA ZRP100BA PLA ZRP125BA PLA ZRP140BA Phase Hz 1 50 1 50 Voltage 230 Current 0 80 0 71 Outdoor unit Electrical circuit PUHZ ZRP100VKA PUHZ ZRP100YKA PUHZ ZRP125VKA PUHZ ZRP
98. AL KAL 14 34 PEAD RPsJA L 15 35 16 36 PLA RP AA2 17 37 PLA RP100BA3 140BA2 18 38 19 39 1A 3A 1b 3b 1C 3C 1d 3d 1E 3E 1F 3F Display Capacity setting state Display Capacity setting state 00 12 10 112 01 16 11 125 02 22 12 140 03 25 13 160 04 28 14 200 05 32 15 224 06 35 36 16 250 07 40 17 280 08 45 18 09 50 19 0A 56 1A 0b 63 1b 0C 71 1C Od 80 1d 0E 90 1E OF 100 1F Wireless pair No indoor control board side setting Request code 165 Data display 0 0 Le See the table on the right OCH527B Display Pair No setting state 00 No 0 01 No 1 J41 disconnected 02 No 2 J42 disconnected 03 No 3 J41 J42 disconnected 14 EASY MAINTENANCE FUNCTION 14 1 SMOOTH MAINTENANCE 14 1 1 PAR 30MAA PAR 31MAA Maintenance data such as the indoor outdoor unit s heat exchanger temperature and compressor operation current can be displayed with Smooth maintenance This cannot be executed during test operation Depending on the combination with the outdoor unit this may not be supported by some models Select Service from the Main menu and press the button Select Check with the F1 or F2 amp Select Smooth maintenance with the F1 or F2 button and press the button button and press the Q button Check menu 1 1 Error history Refrigerant vo
99. C320 3 SAFETY PRECAUTION 3 1 ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal all supply circuits must be disconnected 3 2 CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Preparation before the repair service Precautions during the repair service e Prepare the proper tools e Prepare the proper protectors e Provide adequate ventilation e After stopping the operation of the air conditioner turn off the power supply beaker e Discharge the condenser before the work involving the electric parts Do not perform the work involving the electric parts with wet hands Do not pour water into the electric parts Do not touch the refrigerant e Do not touch the hot or cold areas in the refrigerating cycle e When the repair or the inspection of the circuit needs to be done without turning off the power exercise great caution not to touch the live parts OCH527B 2 Use new refrigerant pipes In case of using the existing pipes for R22 be careful with the followings Be sure to clean the pipes and make sure that the insides of the pipes are clean Change flare nut to the one provided with this product Use a newly flared pipe Avoid using thin pipes Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of ref
100. CN2 CN4 YE 2 TRANS 4 WHT 7 WH 23l ka a 99 BEIP ti 22 6 4 s re CNAC r 8 5 65 Ki WHT si Se gt lt 5 12 P CNS F1 F4 3 1248 3 1 ss WHT Le s GaN WHT x 2 2184 1 MODEL SELECT His the switch position THS MODEL SW6 SW5 6 2 ON ON ooy or Aaa NAPA oer HEC P B t 2 14 2 12345678 123456 a pa 00660660 pa 125Y OFF alaala GFF HEHE ior oe as 1 ie T rout 12345678 123456 ON ON L3OUT TB L3 140Y OFF EA OFF HHHHER BLK BLK 12345678 123456 X52CB head 2 SWS 1 to 5 Function Switch WHT RED RED Des cjo m Sls TB2 X520A TB L1 RED Saai S1 5 kai 2 INDOOR z UNIT ao pi OF isl se a K KALEN o vl w I u MC 2 ka N F z ala gt a m 2 CNAC1 CNCT CNAC2 ya a a WHT 4 RED 1f 2 1 3 RED ACLI TB1 N RED LH Lot RED LI2 Loz ACL2 POWER SUPPLY WHT war NM 3N ACL3 400V 50Hz fik 8 103 BLK TIM Pa NI i y NO eu GRN YLW 1 1 CNDC CNL GD1 GD3 ates au lt x 2 E ACL4 a m 2 s 71 m A M NET ADAPTER SYMBOL NAME TB7 Terminal Block lt M NET connection gt CN5 Connector lt Transmission gt CND Connector lt Power Supply gt CN2M Connector lt M NET communication gt OCH527B 20 9 WIRING SPECIFICATIONS 9 1 FIELD ELECTRICAL WIRING power wiring specifications Outdoor unit model RP35 50V RP60 70V RP100 125V RP140V RP10
101. DC12V is not supplied to remote controller Power supply display is not indicated on LCD DC12 15V is supplied to remote controller however no display is indicated PLEASE WAIT is not displayed e PLEASE WAIT is displayed Check LED2 on indoor controller board 1 When LED2 is lit Check the remote controller wiring for breaking or contact failure 2 When LED2 is blinking Check short circuit of remote controller wiring 3 When LED2 is not lit Refer to phenomena No 3 below Check the following lt Failure of remote controller if PLEASE WAIT is not displayed lt Refer to phenomena No 2 below if PLEASE WAIT is displayed 2 PLEASE WAIT display is remained on the remote controller and indoor unit door unit Q At longest 2 minutes after the power supply PLEASE WAIT is displayed to start up Communication error between the remote controller Communication error between the indoor and out Outdoor unit protection device connector is open Normal operation Self diagnosis of remote controller PLEASE WAIT is displayed for 6 min utes at most in case of indoor outdoor unit communication error Check LED3 on indoor controller board 1 When LEDS is not blinking Check indoor outdoor connecting wire for Miswiring Converse wiring of S1 and S2 or break of S3 wiring 2 When LEDS is blinking Indoor outdoor connecting wire is normal C
102. Disconnection or loose connection of CN2 on the outdoor power circuit board controller circuit board ZRP100 140VKA Power circuit failure on DC supply for 18V DC output on outdoor controller circuit board ZRP100 140VKA Check the field facility for the power supply Check CN52C wiring ZRP VKA Replace outdoor power circuit board ZRP VKA Replace outdoor power circuit board Replace outdoor converter circuit board ZRP YKA Check RS wiring ZRP YKA Replace RS ZRP YKA Check CB wiring ZRP100 140VKA Check CN2 wiring ZRP100 140VKA Replace outdoor controller circuit board ZRP100 140VKA Input current sensor error L1 phase open error e Decrease in input current through outdoor unit to 0 1A only if operation frequency is more than or equal to 40Hz or compressor current is more than or equal to 6A L1 phase open ZRP YKA Disconnection or loose connection between TB1 and outdoor noise filter circuit board ZRP YKA Disconnection or loose connection of CN5 on the outdoor power circuit board CNCT on the outdoor noise filter board ZRP60 71VHA ZRP YKA Defective ACCT AC current trans on the outdoor noise filter circuit board ZRP60 71VHA ZRP YKA Defective input current detection circuit in outdoor power circuit board Defective outdoor controller circuit board Check the field facility for the power supply ZRP YKA Check the wiring between TB1
103. HZ ZRP125YKAR1 PUHZ ZRP140YKAR1 CHARGELESS SYSTEM PRE CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT Max 30m PUHZ ZRP35 140 The refrigerant circuit with LEV Linear Expansion Valve and power receiver always control the optimal refrigerant level regardless of the length 30 m max and 5 m min of piping The additional refrigerant charging work during installation often causes problems It is completely eliminated by chargeless system This unique system improves the quality and reli ability of the work done It also helps to speed up the installation time REFRIGERANT LEAKAGE DETECTION FUNCTION PUHZ ZRP35 140 can detect refrigerant leakage which may happen during a long period of use OCH527B 6 5 SPECIFICATIONS Service Ref PUHZ ZRP35VKA PUHZ ZRP50VKA Mode Cooling Heating Cooling Heating Power supply phase cycle voltage Single 50Hz 230V Max current External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model SNB092FGCM SNB130FGCM2 Motor output 0 6 1 1 Starter type Inverter Protection devices HP switch Comp shell thermo Discharge thermo Crankcase heater Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 1 Fan motor output kW
104. INDICATOR will not be displayed Phone Calls From Customers How to Respond A white mist is expelled from the indoor unit This is not a malfunction This may occur when the operation gets started in the room of high humidity Water or moisture is expelled from the outdoor unit Cooling when pipes or piping joints are cooled they get sweated and water drips down Heating water drips down from the heat exchanger Make use of optional parts Drain Socket and Drain pan if these water needs to be collected and drained out for once The display of wireless remote controller gets dim or does not come on The indoor unit does not receive a signal from remote controller at a long distance OCH527B Batteries are being exhausted Replace them and press the reset button of remote controller 62 11 6 HOW TO CHECK THE PARTS PUHZ ZRP35 50VKA PUHZ ZRP60 71VHA PUHZ ZRP100 125 140VKA PUHZ ZRP100 125 140YKA PUHZ ZRP100 125 140YKAR1 Parts name Check points Thermistor TH3 lt Outdoor pipe gt Thermistor TH4 lt Discharge gt Thermistor TH6 lt Outdoor 2 phase pipe gt Thermistor TH7 lt Outdoor gt Thermistor TH8 lt Heatsink gt Thermistor TH32 lt Comp surface gt Thermistor TH33 lt Outdoor pipe gt Disconnect the connector then measure the resistance with a tester At the ambient temperature 10 C 30 C Normal Abnormal 160kQ
105. Indoor unit input capacity 16A Main switch Breaker Indoor unit power supply 3x Min 1 5 Indoor unit power supply earth 1x Min 1 5 Indoor unit Outdoor unit 2x Min 0 3 Indoor unit Outdoor unit earth Remote controller Indoor unit 2 x 0 3 Non polar Indoor unit L N AC 230 V Indoor unit Outdoor unit S1 S2 _ Indoor unit Outdoor unit S2 S3 DC24 V Remote controller Indoor unit DC12 V 1 A breaker with at least 3 mm contact separation in each pole shall be provided Use earth leakage breaker NV The breaker shall be provided to ensure disconnection of all active phase conductor of the supply 2 Max 120 m 3 The 10 m wire is attached in the remote controller accessory Max 500 m 4 The figures are NOT always against the ground E N D A is zz g Circui rating Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cables and indoor unit outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable Design 60245 IEC 57 3 Install an earth longer than other cables OCH527B 22 9 3 INDOOR OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC Wire No lt Size mm Outdoor power supply Max 45m Max 50m Max 80m Indoor unit Outdoor unit 3 x 1 5 polar 3 x 2 5 polar 3 x 2 5 polar and S3 separated Indoor unit
106. LESHOOTING 29 il i 12 FUNCTION SETTING 95 S i 13 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 108 14 EASY MAINTENANCE FUNCTION 119 15 DISASSEMBLY PROCEDURE 126 PUHZ ZRP35VKA PUHZ ZRP50VKA PARTS CATALOG OCB527 fMir SLIM 1 TECHNICAL CHANGES PUHZ ZRP100YKA gt PUHZ ZRP125YKA gt PUHZ ZRP125YKAR1 PUHZ ZRP140YKA gt PUHZ ZRP140YKAR1 Power circuit board P B has been changed PUHZ ZRP100YKAR1 2 REFERENCE MANUAL INDOOR UNIT SERVICE MANUAL Model name Service Ref Service Manual No PLA ZRP35 50 60 71 125 140BA PLA ZRP35 50 60 71 125 140BA UK OCH535 OCB535 PLA ZRP100BA PLA ZRP100BA OCH529 OCB529 PCA RP35 50 60 71 100 125 140KAQ PCA RP35 100 125 140KAQ PCA RP50 60 71KAQR1 OCH491 OCB491 PCA RP71 125HAQ PCA RP71 125HAQ OCH492 OCB492 PKA RP35 50HAL PKA RP35 50HAL OCH453 OCB453 PKA RP60 71 100KAL PKA RP60 71 100KAL OCH452 OCB452 PSA RP71 100 125 140KA PSA RP71 100 125 140KA OCH528 OCB528 PEAD RP35 50 60 71 100 125 1 40JA L Q PEAD RP35 50 60 71 100 125 140JA L QR1 UK HWE10090 BWE10160 SLZ KA25VAQ2 SLZ KA35 50VAQ SLZ KA25VAQ2 TH SLZ KA35 50VAQR2 TH OCH493 OCB493 SLZ KA25VAL2 SLZ KA35 50VAL SLZ KA25VAL2 TH SLZ KA35 50VALR3 TH 0
107. MITSUBISHI ELECTRIC Changes for the Better SPLIT TYPE HEAT PUMP AIR CONDITIONERS July 2013 No OCH527 REVISED EDITION B SERVICE MANUAL R410A Outdoor unit Revision Model name Service Ret e PUHZ ZRP100 125 140YKAR1 PUHZ ZRP35VKA PUHZ ZRP35VKA Hae ae in REVISED PUHZ ZRP50VKA PUHZ ZRP50VKA a aor have been moaired PUHZ ZRP60VHA PUHZ ZRP60VHA PUHZ ZRP71VHA PUHZ ZRP71VHA ja PUHZ ZRP100VKA PUHZ ZRP100VKA f PUHZ ZRP125VKA PUHZ ZRP125VKA Note PUHZ ZRP140VKA PUHZ ZRP140VKA This manual describes only PUHZ ZRP100YKA PUHZ ZRP1 OOYKA naa data of the outdoor lt RoHS compliant products have PUHZ ZRP100YKAR1 lt G gt mark on the spec name PUHZ ZRP125YKA PUHZ ZRP125YKA plate PUHZ ZRP125YKAR1 PUHZ ZRP140YKA PUHZ ZRP140YKA PUHZ ZRP140YKAR1 CONTENTS 1 TECHNICAL CHANGES aa 2 2 REFERENCE MANUAL aa aaa 2 3 SAFETY PRECAUTION 2 lt AXFEATURES a S R Tt as naa bs 6 il 5 SPECIFICATIONS v es esseseesecsescessesereeeseceesseeee 7 sS ey il J RU CODATA A ah T ae cent Ha A 9 l PTI 7 OUTLINES AND DIMENSIONS 13 Ili ani ill 8 WIRING DIAGRANM a a 16 sS INK Hell Ii ul 9 WIRING SPECIFICATIONS 21 wii i 10 REFRIGERANT SYSTEM DIAGRAM 26 SS TTT 11 TROUB
108. N4 Connect to A control ot og Transmission to out service tool a o fe door power circuit pava board CN4 CNMNT CN4 Connect to ene K o M NET adapter we ion CNVMNT PS G Connect to 3 M NET adapter CND o lo LEV A B Linear expansion valve in Y n Tere 0 aan di o css 2134 GRI Four way valve TH4 Thermistor lt Discharge gt TH3 Thermistor lt Outdoor pipe gt TH7 6 aS 3 Thermistor E lt Outdoor 2 phase pipe gt pa CN2 Connect to the outdoor power circuit board CN2 Reception from 63H power circuit board High pressure switch Zero cross signal TH32 0 5V DC Not used Thermistor e 16V DC lt Comp surface gt 16V DC TH33 Thermistor lt Outdoor pipe gt las For RP35 140 F mui CNAG Vec to Power supply for outdoor controller circuit board 230V AC to Power supply for indoor and outdoor unit Voltage between right pins of PC5C and PCS5D pin 3 c and pin 4 sev En gi connection wire Same as B CNF1 La ka lt PRN J R or Vsp Voltage between pins of C5A C5B DC OV when stopped DC 1 CNS S1 S2 230V AC 6 5V CNF1 CNF2 CNDC sa saka a t NA SNS 250 390 VDE Communication power suppl So TEV DO a b D71 Voltage i ne 0 6 5V DC Outdoor power circuit 24V DC 15V DC When stopped eee 7 ZRP6O 7
109. Outdoor unit earth 1 x Min 1 5 1 x Min 2 5 1 x Min 2 5 The Max cable length may vary depending on the condition of installation humidity or materials etc Indoor Outdoor separate Wire No x Size mm POwBF SURPY Max 120m Indoor unit Outdoor unit 2 x Min 0 3 Indoor unit Outdoor unit earth The optional indoor power supply terminal kit is necessary Be sure to connect the indoor outdoor connecting cables directly to the units no intermediate connections Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the intermediate connection point OCH527B 23 9 4 M NET WIRING METHOD Points to note 1 Outside the unit transmission wires should stay away from electric wires in order to prevent electromagnetic noise from making an influence on the signal communication Place them at intervals of more than 5 cm Do not put them in the same conduit tube 2 Terminal block TB7 for transmission wires should never be connected to 220 240V power supply If it is connected electronic parts on M NET P C board may burn out 3 Use 2 core x 1 25mm shield wire CVVS CPEVS for the transmission wire Transmission signals may not be sent or received normally if different types of transmission wires are put together in the same multi conductor cable Never do this because this may cause
110. POWER SUPPLIES The following connection patterns are available The outdoor unit power supply patterns vary on models 1 1 System lt For models without heater gt Outdoor unit power supply The optional indoor power supply terminal kit is required Earth leakage breaker Wiring circuit breaker or isolating switch Q Indoor unit power supply mn aT aI Outdoor unit of yah of Wi Indoor unit outdoor unit connecting cords Remote controller L ie _ Bj Indoor unit Option oll l Ei f Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units Simultaneous twin triple system lt For models without heater gt of The optional indoor power supply terminal kit is required Outdoor unit power supply Earth leakage breaker TAS Wiring circuit breaker or isolating switch Outdoor unit Indoor unit outdoor unit connecting cales Remote controller Indoor unit Option Q Indoor unit power supply Indoor unit earth up ib SALA HSa ES SACCAGSO Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units If the indoor and outdoor units have separate power supplies refer to the table below
111. RP35 140 S3 terminal has DC 24 V against S2 terminal However between S3 and S1 these terminals are NOT electrically insulated by the transformer or other device Max 45 m If 2 5 mm used Max 50 m N Caution Be sure to install N Line Without N Line it could cause damage to the unit If 2 5 mm used and S3 separated Max 80 m Max 80 m Total Max including all indoor indoor connection is 80 m Use one cable for S1 and S2 and another for S3 as shown in the picture Max 50 m Total Max for PEA Wiring size 3 x 1 5 Polar Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cables and Indoor Outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable Design 60245 IEC 57 3 Install an earth longer than other cables Power supply Isolator 3 poles isolator S1 S1 A Control s gt I s2 A Control Outdoor Unit Indoor Unit s3 s3 A Warning In case of A control wiring there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line Therefore please turn off the main power supply when servicing And do not touch the S1 S2 S3 terminals when the power is energized If isolator should be used between indoor unit and outdoor unit please use 3 pole type Never splice the power cable or
112. Resistance U W 9 at 20 C i PUHZ ZRP100 125 140YKA A PUHZ ZRP71VHA PUHZ ZRP100 125 140VKA Setia BEN j J PASSO PUHZ ZRP100 125 140YKAR1 Compressor model SNB172FSHM1 ANB33FNFMT ANB33FNCMT Winding Resistance U W Q OCH527B 9 6 3 NOISE CRITERION CURVES MICROPHONE Se im UNIT 1 5m GROUND PUHZ ZRP35VKA MODE SPL dB LINE PUHZ ZRP60VHA KE SPL dB LINE COOLING 44 o x AT S PUHZ ZRP50VKA HEATING 46 PUHZ ZRP71 VHA HEATING 48 ee 90 1 F J 1 90 H 1 ae q L 3 st 2 T S a may gE E kaa a P ga a N kn A s 80 S 8 t S I 2 70 a 70 2 g _ 60 z 60 u u m gt 4 4 Ww 50 W 50 no n 0 0 40 i 40 a a a a z 3 3 9 30 g 30 2 s lt I X lt fs DAN E a 20 APPROXIMATE T m 20 APPROXIMATE a O iero E gt u aae ENG 6 Sea conrinuous F N F CONTINUOUS pea 6 NOISE L f a NOISE TE E i 10 F 4 4 O 10 T u z f gt 63 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz BAND CENTER FREQUENCIES Hz PUHZ ZRP1
113. TB L1 L2 L3 CNL Connect to the ACL4 Connect to the outdoor converter circuit board N IN OCH527B 75 Outdoor power circuit board Brief Check of DIP IPM and DIP PFC PUHZ ZRP60VHA Usually they are in a state of being short circuited if they are broken PUHZ ZRP71VHA Measure the resistance in the following points connectors etc If they are short circuited it means that they are broken 1 Check of DIP IPM P2 U IP2 V IP2 W IN2 U IN2 V IN2 W 2 Check of DIP PFC P1J L P1 N L INII N IN1 Note The marks L N INI IN2 P14 P2 JU LV and W shown in the diagram are not actually printed on the board R S U V W Connect to the ACL Connect to the compressor MC 230V AC Voltage among phases 5V to 180V AC DIP PFC LD1 LD2 280 380VDC NN Mj See ee fm zgr Connect to LD9 the outdoor s Connect to controller the earth circuitboard Bg EGE olo e SS M a N Only RP60 71 CNDO gt x lt N a m s una PAS zar q 21 _ DIP IPM n ooo EEEE AET E KAG we ee A CCOOOA 0 0009 TI Gal amp 1 V S a a ras n ONS NG Connect to the outdoor controller circuit board CN2 Outdoor power ci
114. TSUBISHI ELECTRIC This air conditioner Outdoor unit can detect refrigerant leakage one On which may happen during a long period of use In order to enable eID HOU SS ie 34 e the leakage detection the following settings are required to let the 0 og unit memorize the initial condition initial refregerant amount i TEMP QD ON OFF E GD Gu aution Gagap Sager Meme a ING ea aan an aceon nt tome met Make sure to perform the test run and confirm the unit works ngos OMENY Power e C IN 5 without any problems before starting the following setting Sane BSa CHK TEST For more precise detection make sure to set the airflow at Gs ED G amp D GD High notch before enabling this setting PAR 21MAA CLEAR Display 1 How to select the Refrigerant Leakage Detection mode Refrigerant leakage MEN I detection y Refrigerant leakage Detection is possible regardless the unit s operation ON or OFF initial teaching detection judgement Press button for more than 3 seconds to switch to GAS LEAK GAS LEAK EASY MAINTENANCE mode Display TEST START JUDGE 2 How to start the initial learning Press CLOCK button and select the GAS LEAK TEST START The initial learning for the leakage detection is always done once after the new installation or the data reset Display Waiting for stabilization s s nas Y Stabilized ooa After 45 minutes Press 1 button to confirm gt
115. Turn the power off and on again to check the error code If U4 is displayed follow the U4 processing direction The check code in the parenthesis indicates PAR 30MAA model Compressor overcurrent interruption When compressor locked Abnormal if overcurrent of DC bus or compressor is detected within 30 seconds after compressor starts operating Stop valve is closed Decrease of power supply voltage Looseness disconnection or converse of compressor wiring connection Defective compressor Defective outdoor power board Dip switch setting difference of outdoor controller circuit board Open stop valve Check facility of power supply Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Check compressor Refer to 11 6 Replace outdoor power circuit board Check the dip switch setting of outdoor con troller circuit board Refer to Model Select in 1 Function of switches in 11 10 Current sensor error Abnormal if current sensor detects 1 0A to 1 0A during compressor operation This error is ignored in case of test run mode Disconnection of compressor wiring Defective circuit of current sensor on outdoor power circuit board Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Replace outdoor power circuit board OCH527B 46 Error Code Abnormal poin
116. Z Top panel Fan grille p s BB Cover panel rean Grille fixing Cover panel Service panel screws front fixing screws 2 Removing the fan motor MF1 Photo 2 Front panel Photo 3 1 Remove the service panel See Photo 1 Propeller a Fan 2 Remove the top panel See Photo 1 2 Fan motor fixing screws Mes 3 Remove 5 fan grille fixing screws 5 x 12 to detach the fan grille See Photo 1 4 Remove a nut for right handed screw of M6 to detach the propeller See Photo 2 5 Disconnect the connector CNF1 on controller circuit board in electrical parts box 6 Remove 4 fan motor fixing screws 5 x 20 to detach the fan motor See Photo 3 Guy Fan motor fixing screws Front panel fixing screws 3 Removing the electrical parts box 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the indoor outdoor connecting wire from terminal block 4 Disconnect the connector CNF1 LEV A and LEV B on the controller circuit board lt Symbols on the board gt e CNF1 Fan motor e LEV A LEV B LEV 5 Disconnect the pipe side connections of the following parts e Thermistor lt Outdoor pipe gt TH3 TH33 e Thermistor lt Discharge gt TH4 e Thermistor lt Outdoor 2 phase pipe Outdoor gt TH7 6 e Thermistor lt Heatsink gt CN3 e High pressure switch 63H 4 way valve coil 2184 e Thermistor lt Comp surface gt TH
117. a j 7 5V DC When operated oise filter circuit boar OV 15V pulse for ZRP100 140Y OCH527B 73 Outdoor noise filter circuit board PUHZ ZRP60VHA PUHZ ZRP71VHA El E2 fe y 7 Connect to the earth KO E3 CNAC1 CNAC2 a Yo Connect to 230V AC Jo the earth Connect to the I c outdoor control 4 oT ler circuit board CNAC ILo CN5 s Fa Primary current a Connect to the 3 outdoor power B circuit board CN52C 9 52C relay signal Al E Connect to the NG outdoor controller Boe o circuit board s CN52C LO LO NO Voltage of 230V AC is output Connect ACL OCH527B 74 Outdoor noise filter circuit board PUHZ ZRP100YKA PUHZ ZRP125YKA PUHZ ZRP140YKA LH LI2 LIS NI PUHZ ZRP100YKAR1 POWER SUPPLY PUHZ ZRP125YKAR1 BENLE NE NIAC S input PUHZ ZRP140YKAR1 Connect to the terminal block TB1 GD1 Connect to the earth 109 WO S SW 311Id4 3SION NIMOJ O3N CNAC1 CNAC2 AC230V Connect to the outdoor controller circuit board CNAC GD3 Connect to the earth LAOZA9 EAD PAD T T ITT CNDC Connect to the outdoor controller circuit board i CNDO CNCT Primary current Connect to the outdoor power circuit board CN5 LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 AC400V OUTPUT Connect to the outdoor power circuit board
118. a malfunction Group remote controller Power supply unit for transmission wire EREA pi aera e e Tih Ka E I Refrigerant ii Refrigerant Refrigerant address 00 address 00 address 00 M NET M NET M NET address 01 address 02 address 03 A control A control A control remote remote remote controller controller controller It would be OK if M NET wire non polar 2 cores is arranged in addition to the wiring for A control 4 Earth only one of any appliances through M NET transmission wire shield wire Communication error may occur due to the influence of electromagnetic noise Ed error will appear on the LED display of outdoor unit 0409 error will appear on the central control remote controller x Bad example Multi spot earthing of shield wire Central remote supply controller Power appliance M NET type outdoor unit M NET type outdoor unit M NET type outdoor unit A M NET transmission wire O Good example 1 Single spot earthing of shield wire Central remote controller Power supply appliance M NET type outdoor uhi M NET type outdoor Unit M NET type outdoor unit A M NET transmission wire O Good example 2 Single spot earthing of shield wire Central remote supply controller Power appliance M NET type outdo
119. ably on the remote Stable Unstable controller g Temperature Discharge temperature Outdoor c O difference heat exchanger temperature Indoor intake air temperature c Indoor heat exchanger temperature Inspection Is D000 displayed stably on the remote Stable Unstable controller s Temperature Discharge temperature Indoor c I difference heat exchanger temperature Indoor heat exchanger temperature Cc Indoor intake air temperature Fixed Hz operation may not be possible under the following tempera ture ranges A In cool mode outdoor intake air temperature is 40 C or higher or indoor intake air temperature is 23 C or lower B In heat mode outdoor intake air temperature is 20 C or higher or indoor intake air temperature is 25 C or lower If the air conditioner is operated at a temperature range other than the ones above but operation is not stabilized after 30 minutes or more have elapsed carry out inspection In heat mode the operation state may vary due to frost forming on the outdoor heat exchanger Heat mode Cool mode C aot 45 Inspection C 40 Filter inspection 1 Y Y wo Q aoa 2 20 a MIndoor intake air temperature Indoor heat exchanger temperature Indoor heat exchanger temperature Indoor intake air temperature a 10 20 30 40 50 60 70 80 C 0 10 20 30 40 50 60 70 80 C
120. al f block TB1 Valve bed Noise filter circuit board N F Terminal block TB2 Terminal cover Reactors Continued to the next page From the previous page OPERATING PROCEDURE eee PHOTOS amp ILLUSTRATION 7 Remove the terminal cover and disconnect the compressor lead wire 8 Remove 2 electrical parts box fixing screws 4 x 10 and detach the electrical parts box by pulling it upward The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right Electrical parts box fixing screw 4 Disassembling the electrical parts box 1 Disconnect all the connectors on the controller circuit board 2 Remove the 3 screws screw and that fix the plate equipped with the outdoor controller circuit board and the electrical parts box screw from the front and the screw and from the bottom of the electrical parts box See Photo 6 and 7 3 Slide the plate in the direction of the arrow A and remove it See Photo 6 4 Remove the lead wires from the clamp on the bottom of the electrical parts box See Photo 6 5 Remove the 3 screws screw and that fix the bottom side of the electrical parts box and remove the bottom side plate by sliding in the direction of the arrow B See Photo 8 and 9 6 Remove the 2 screws screw and Q that fix the plate equipped with the noise filter circuit board and converter circuit board See Photo 1
121. ambient temperature Defective thermistor Defective input circuit of outdoor power circuit board Failure of outdoor fan drive circuit Check outdoor fan Check air flow path for cooling Check if there is something which causes temperature rise around outdoor unit Upper limit of ambient temperature is 46 C Turn off power and on again to check if U5 is displayed within 30 minutes If U4 is displayed instead of U5 follow the action to be taken for U4 Check resistance value of thermistor TH8 or temperature by microcomputer Thermistor TH8 Refer to 11 6 SW2 on A Control Service Tool Refer to 11 10 Replace outdoor power circuit board Replace outdoor controller circuit board Power module Check abnormality by driving power module in case overcurrent is detected UF or UP error condition Outdoor stop valve is closed Decrease of power supply voltage Looseness disconnection or converse of compressor wiring connection Defective compressor Defective outdoor power circuit board Open stop valve Check facility of power supply Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Check compressor referring to 11 6 Replace outdoor power circuit board Too low superheat due to low discharge temperature Abnormal if discharge superheat is continuously detected less than or equal to 15 C for 3 minutes eve
122. and outdoor noise filter circuit board ZRP YKA Check CN5 CNCT wiring ZRP60 71VHA ZRP YKA Replace outdoor noise filter circuit board ZRP60 71VHA ZRP YKA Replace outdoor power circuit board Replace outdoor controller circuit board Abnormal power synchronous signal No input of power synchronous signal to power circuit board Power synchronous signal of 44 Hz or less or 65 Hz or more is detected on power circuit board OCH527B Distortion of power source voltage noise superimposition Disconnection or loose connection of earth wiring Disconnection or loose connection of CN2 on the outdoor power circuit board controller circuit board Defective power synchronous signal circuit in outdoor controller circuit board Defective power synchronous signal circuit in outdoor power circuit board 45 Check the field facility for the power supply Check earth wiring Check CN2 wiring Replace outdoor controller circuit board Replace outdoor power circuit board Continue to the next page From the previous page Error Code Abnormal point and detection method Case Judgment and action Detailed codes PFC Q1 error Overvoltage Undervoltage Overcurrent e Increase of DC bus voltage to 35 50VKA 400V 60 71VHA 420V lt Decrease in PFC control volt age to 12V DC or lower lt Increase in input current to 50A peak
123. ard Transmitting signal to the controller board 0 5V DC Zero cross signal 0 5V DC Not used 16V DC 16V DC 0 090 0 0 0 9 OCH527B lt Heat sink gt TH8 79 DIP IPM Outdoor converter circuit b PUHZ ZRP100YKA PUHZ ZRP125YKA PUHZ ZRP140YKA PUHZ ZRP100YKAR1 PUHZ ZRP125YKAR1 PUHZ ZRP140YKAR1 CK OU Connect to the CK capacitor o t tp c s A ig Al 8 E ig R22 4 h 5 D w L1 IN LA AI d od 6S S ir cTso 2 5200 s mi Aeon ne irp re gg LL Ni u o 5 E e seki i 8 EEE DU t IH Dj oa min at 1 E I 200 D i S mes 20 DUE 2 81 obs c 5 GAS 6 k SES gt 30 40 80 A oard L1 A1 Connect to the ACL1 L1 IN N IN Connect to the noise filter circuit board LO1 No Connect to the outdoor power circuit board CN7 CAUTION 6 F51 F62 F53 N lt s PEK 14 D IP AC250V GA a AC250V GA AC250V 6A lt N q 3 i lt 3 i g n 1 m lt IU E all Al ol al J J a J J 4 O 8 Pad d L1 A2 L2 A2 L3 A2 Connect to the ACL1 ACL2 ACL3 OCH527B L1 OU L2 OU L3 OU Connect to the outdoor power circuit board TB L1 L2 L3 80 Outdoor M NET board optional LED3 LED4 LED3 Outdoor unit LED5 CN2M Receiving Transmitting connecting display Energizing Connect to M NET CN5 display of
124. ard to ON and short circuiting the connector CN31 on outdoor controller board When following abnormalities occur emergency operation will be available Error code Inspected content U4 Open short of outdoor unit thermistor TH3 TH6 TH7 TH8 E8 Indoor outdoor unit communication error Signal receiving error Outdoor unit E9 Indoor outdoor unit communication error Transmitting error Indoor unit Communication error other than outdoor unit Ed Communication error between outdoor controller board and M NET board Serial communication error 2 Check the following items and cautions for emergency operation O Make sure that there is no abnormality in outdoor unit other than the above abnormalities Emergency operation will not be available when error code other than the above are indicated For emergency operation it is necessary to set the emergency operation switch SWE on indoor controller board Refer to the electrical wiring diagram of indoor unit for how to set the indoor unit During emergency operation the air conditioner will continuously be operated by supplying power and stopping it It can not be turned on or off by remote control and temperature control is not possible Do not perform emergency heating operation for an extended period of time If the outdoor unit starts defrosting during this period cold air will blow out from the indoor unit Do not perform emergency cooling operation for m
125. arts box 4 Loosen the clamp for the lead wire in the rear of the electrical parts box See Photo 5 5 Pull out the thermistor lt Outdoor gt TH7 from the sensor holder Note When replacing thermistor lt Outdoor gt TH7 replace it together with thermistor lt Outdoor 2 phase pipe gt TH6 since they are combined together Refer to procedure No 4 above to remove thermistor lt Outdoor 2 phase pipe gt Photo 6 Lead wire of thermistor lt Outdoor gt TH7 Sensor holder 6 Removing the thermistor lt Outdoor pipe gt TH3 TH33 and thermistor lt Discharge gt TH4 thermistor lt Comp surface gt TH32 1 Remove the service panel See Photo 1 2 Disconnect the connectors TH3 white and TH4 white TH83 yellow TH32 black on the controller circuit board in the electrical parts box 3 Loosen the clamp for the lead wire in the rear of the electrical parts box See Photo 5 4 Pull out the thermistor lt Outdoor pipe gt TH3 TH33 and thermistor lt Discharge gt TH4 from the sensor holder Removing the thermistor lt Comp surface gt TH32 5 Remove the compressor cover upper and pull out the thermistor lt Comp surface gt TH32 from the holder of the compressor shell TH3 TH33 See Figure 1 OCH527B Photo 7 Compressor cover upper Dischage thermistor TH4 132 OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 7 Removing the 4
126. as leakage Check the insulation Open intake grille and check the filter Clean the filter by removing dirt or dust on it e If the filter is clogged indoor pipe temperature rises and discharging pressure increases Check if heat exchanger is clogged by inspecting discharging pressure e Clean the heat exchanger Remove the blockage Check refrigerant system during operation 8 For 3 minutes after temperature adjuster turns off the compressor will not start operating even if temperature adjuster is turned on For 3 minutes after temperature adjuster turns on the compressor will not stop operating even if temperature adjuster is turned off Compressor stops operating immediately when turning off by the remote controller OCH527B Normal operation For protection of compressor 54 MO Normal operation Symptoms PLEASE WAIT is kept being displayed on the remote controller Diagnosis flow Inspection method and troubleshooting Check the display time of PLEASE WAIT after turning on the main power 6 minutes 2 minutes or more low long is PLEASE WAIT or less i n kept rH displayed on the i Te a b a ma i ae emote controller playe e start up diagnosis will during the start up be over in around 2 minutes 2106 diagnosis after turning minutes on the main power Are any error codes displayed on the emote controller Check the LED
127. blinks KANA e g Contact information dealer s phone number will appear if the information have mataman VA been registered Contact information Dealer Tel Reset error Reset button W Page A Press the F4 button or the button to reset the error that is occurring ___Error information 1 2 _ Error code 4 Error unit IU Ref address 88 Unt 88 Wes Model name Errors cannot be reset while the ON OFF operation is prohibited Serial No Reset error Reset button W Page A Co eS F4 gblinks pyr Select OK with the F4 button Error reset Reset current error F2 F3 gt Error reset Error reset Navigating through the screens TA B e To go back to the Main menu button kaa usu l OCH527B 31 lt Checking the error information gt While no errors are occurring page 2 2 of the error information can be viewed by selecting Error information from the Main menu Errors cannot be reset from this screen Main Main menu 2 3 Restriction Energy saving Night setback Filter information gt Error information Main display Y Cursor lt Page p _ BEB j Fl F2 F3 F4 gPlinks lt Error history gt Select Service from the Main menu and press the button gg Select Check with the F1 or F2 button and press the V butto
128. controller circuit board and M NET board is not available Breaking of wire or contact failure of connector CN2 between the outdoor controller circuit board and the outdoor power circuit board Breaking of wire or contact failure of connector CN4 between the outdoor controller circuit board and the outdoor power circuit board Defective communication circuit of outdoor power circuit board Defective communication circuit of outdoor controller circuit board for outdoor power circuit board Breaking of wire or contact failure of connector between outdoor controller circuit board and M NET board Contact failure of M NET board power supply line Noise has entered into M NET transmission wire Check connection of each connector CN2 and CN4 between the outdoor controller circuit board and the outdoor power circuit board Replace outdoor power circuit board Replace outdoor controller circuit board Check disconnection looseness or breaking of connection wire between outdoor controller cir cuit board CNMNT and M NET board CNS Check disconnection looseness or breaking of connection wire between outdoor controller cir cuit board CNMNT and M NET board CND Check M NET transmission wiring method Pipe temperature lt Cooling mode gt Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes after the liquid or con
129. cover from the compressor 3 4 5 6 Thermistor lt Discharge gt TH4 7 Pull out the thermistor lt Discharge gt TH4 from the sensor holder See Photo 8 Thermistor lt Comp surface gt TH32 Thermistor lt Discharge gt Thermistor lt Comp surface gt TH32 Sound proof Ji A Cover 7 Pull out the thermistor lt Comp surface gt TH32 from the sensor holder See Photo 8 Removing the 4 way valve coil 21S4 and LEV coil LEV A Photo 9 LEV B 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Photo 1 4 Remove the back panel See Photo 1 5 Remove the electrical parts box See Photo 5 Removing the 4 way valve 21S4 6 Remove 1 4 way valve fixing screw M4 x 6 7 Remove the 4 way valve by sliding the coil to the right Removing the LEV coil LEV A LEV B 6 Remove the LEV coil by sliding the coil upward OCH527B 4 way valve coil fixing screw KIT g 4 wa valve coil LEV coil i PIN 4 LEV coil LEV B LEV A LEV B 4 LEVA 128 OPERATING PROCEDURE PHOTOS 8 Removing the 4 way valve Remove the service panel See Photo 2 Remove the top panel See Photo 1 Remove the front panel See Photo 1 Remove the back panel See Photo 1 Remove the electrical parts box See Photo 5 Remove the 4 way valve See Photo 9 R
130. crew to fix an earth wire on the plate as shown on the right figure 9 4 1 M NET address setting In A control models M NET address and refrigerant address should be set only for the outdoor unit Similar to CITY MULTI system there is no need to set the address of outdoor unit and remote controller To construct a central control system the setting of M NET address should be conducted only upon the outdoor unit The setting range should be 1 to 50 the same as that of the indoor unit in CITY MULTI system and the address number should be consecutively set in a same group Address number can be set by using rotary switches SW11 for 1st digit and SW12 for 2nd digit which is located on the M NET board of outdoor unit Initial setting all addresses are set to 0 9 4 2 Refrigerant address setting lt Setting example gt M NET Address No 1 2 Switch setting SW11 lt s gt A gt 1st BOS digit SW12 KEN KEN ME GER SA COW KLIS DS QP In the case of multiple grouping system multiple refrigerant circuits in 1 group indoor units should be connected by remote controller wiring TB5 and the refrigerant address needs to be set Leave the refrigerant addresses to 00 if the group set ting is not conducted Set the refrigerant address by using DIP SW1 3 to 6 on the outdoor controller board Initial setting all switche
131. ction Mode E ELE Normal display Display when the air conditioner is not running TIOH Hold d selection Display mode setting OCH527B own the button and press the button for 2 seconds e controller function selection mode English German Spanish Russian ELECT UTO MODE ON e TEMP COL MODE nT TEMP EAT MODE CHTROLLE OHTROLLE mal MAI ea SUE Hold down the button and press the button for 2 seconds Press the operation mode button Press theTIMER MENU button Press theTIMER ON OFF button Dot display A MITSUBISHI ELECTRIC CHANGE LANGUAGE e D aaoi omeny al 4 Sla Fr k DK Ee a oe CRG AO Operation lock setting is not used Initial setting value All operation buttons except On Off button are locked All operation buttons are locked The automatic mode is displayed when the operation mode is selected Initial setting value The automatic mode is not displayed when the operation mode is selected The temperature range limit is not active Initial setting value The t
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133. ddress is corrected and turn the power on again Check transmission waveform or noise on transmission wire Hard ware error of transmission processor Transmission processor intended to transmit 0 but 1 appeared on transmission wire Note The address and attribute display at remote controller indicate the controller that detected abnormality Error is detected if waveform is transformed when wiring works of transmission wire of outdoor unit indoor unit FRESH MASTER or LOSSNAY are done or polarity is changed with the power on and transmission data collide each other Defective transmitting receiving circuit of transmission processor Transmission data is changed by the noise on transmission If the works of transmission wire is done with the power on shut off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again Check transmission waveform or noise on transmission wire BUS BUSY 1 Overtime error by collision damage Abnormal if transmitting is not possible for 8 10 minutes continuously because of collision of transmission Data could not reach transmission wire for 8 10 minutes continuously because of noise or etc Note The address and attribute displayed at remote controller indicate the controller that detected abnormality Transmission processor could not transmit signal becaus
134. de 62 Data display 0 0 0 Input state Setting content Setting content Display Setting value 0 0 1 50 2 75 3 100 Input state Input present Contact demand Silent mode Spare 1 Spare 2 Display e input input input input 0 1 e 2 e 3 e e 4 e 5 e e 6 e e 7 e e e 8 e 9 e e A e e b e e e G e e d e e E e 6 e F e e e Outdoor unit Capacity setting display Request code 70 Data display Capacity 9 35 10 50 11 60 14 71 20 100 25 125 28 140 40 200 50 250 Outdoor unit Setting information Request code 71 Data display 0 0 m OCH527B Setting information Defrost mode Standard Sf oak Display Setting information 0 Setting information 1 For high humidity Single Heat pump Display 3 phase cooling only Single phase heat pump Cooling only 3 phase neal pump Cooling only 116 Outdoor unit switch setting display SW1 to SW10 except SW3 Request codes 73 to 82
135. de press the button Alternating Display ERRQR GODE nn f LILI Error code 2 or 4 digits When using remote local controller combined operation cancel the error code after turning off remote operation During central control by a MELANS controller cancel the error code by pressing the ON OFF button 11 3 4 Self Diagnosis During Maintenance or Service lt PAR 21MAA gt Since each unit has a function that stores error codes the latest check code can be recalled even if it is cancelled by the remote controller or power is turned off Check the error code history for each unit using the remote controller Switch to self diagnosis mode Set the unit number or refrigerant address you want to diagnose Press the CHECK button in the picture above twice within 3 seconds Press the TEMP buttons V and _A in the picture above The display content will change as shown below to select the desired number or address The number address changes between 01 and 50 or 00 and 15 TELE MECOK nn uu i i The refrigerant address will begin to blink Unit number or refrigerant address approximately 3 seconds after being to be diagnosed selected and the self diagnosis process will begin Display self diagnosis results lt When there is error code history gt For the definition of each error code refer to the
136. denser evaporator pipe is out of cooling range Note 1 It takes at least 9 minutes to detect Note 2 Abnormality P8 is not detected in drying mode Cooling range Indoor pipe temperature TH2 or TH5 intake temperature TH1 3 deg TH Lower temperature between liquid pipe temperature and condenser evaporator temperature lt Heating mode gt When 10 seconds have passed after the compressor starts operation and the hot adjustment mode has finished the unit is detected as abnormal when condenser evaporator pipe temperature is not in heating range within 20 minutes Note 3 It takes at least 27 minutes to detect abnormality Note 4 It excludes the period of defrosting Detection restarts when defrosting mode is over Heating range 3 deg Condenser Evaporator temperature TH5 intake temperature TH1 OCH527B Slight temperature difference between indoor room temperature and pipe lt liquid or condenser evaporator gt temperature thermistor e Shortage of refrigerant e Disconnected holder of pipe lt liquid or condenser evaporator gt thermistor e Defective refrigerant circuit Converse connection of extension pipe on plural units connection Converse wiring of indoor outdoor unit connecting wire on plural units connection Defective detection of indoor room temperature and pipe lt condenser evaporator gt temperature thermistor Stop valve is not opened completely 49
137. discharging temperature TH4 Abnormality of superheat due to low discharge temperature Check if stop valves are open Check if connectors TH4 TH32 LEV A and LEV B on outdoor controller board are not disconnected Check if unit is filled with specified amount of refrigerant Measure resistance values among terminals on indoor valve and outdoor linear expansion valve using a tester 2 blinking Abnormal high pressure High pressure switch 63H operated Check if indoor outdoor units have a short cycle on their air ducts Check if connector 63H on outdoor controller board is not disconnected Check if heat exchanger and filter is not dirty Measure resistance values among terminals on linear expansion valve using a tester 3 blinking Abnormality of outdoor fan motor rotational speed Protection from overheat operation TH3 Check the outdoor fan motor Check if connector TH3 on outdoor controller board is disconnected 4 blinking Compressor overcurrent breaking Start up locked Compressor overcurrent breaking Abnormality of current sensor P B Abnormality of power module Check if stop valves are open Check looseness disconnection and converse connection of compressor wiring Measure resistance values among terminals on compressor using a tester Check if outdoor unit has a short cycle on its air duct 5 blinking Open short of discharge thermistor TH
138. display of the outdoor controller circuit board displ sed onthe LEBO e Miswiring of indoor e Refer to Self diagnosis outdoor connecting action table in order to wire solve the trouble NO e Breaking of indoor outdoor connecting In case of communication wire S3 errors the display of e Defective indoor remote controller may not controller board match the LED display of e Defective outdoor the outdoor unit controller circuit board e Defective indoor controller board e Defective remote controller OCH527B 55 LED display of the indoor controller board LED1 O LED2 O LED3 O Symptoms Nothing is displayed on the remote controller D Inspection method and Diagnosis flow troubleshooting Check the voltage between S1 and S2 on the terminal block TB4 of the indoor unit which is used to connect the indoor unit and the outdoor unit AC 198V to AC 264V YES NO Check the voltage among L Ls and N on the terminal block TB1 of the outdoor power circuit board AC 198V to AC 264V Check the voltage between S1 and S2 on the terminal block TB1 of the outdoor unit which is used to connect the indoor unit and the outdoor unit AC 198V to AC 264V Check the voltage of indoor controller board CN2D YES DC 12V to DC 16V NO Check the voltage of the unit after removin
139. door gt L1 A2 OU Connection Terminal lt L1 Power Supply gt SS Connector lt Connection for Option gt H8 hermistor lt Heat Sink gt L2 A2 0U Connection Terminal lt L2 Power Supply gt CNM Connector lt A Control Service Inspection Kit gt H32 hermistor lt Shell gt L3 A2 OU Connection Terminal lt L3 Power Supply gt CNMNT Connector LEV A LEV B LEV C Electronic Expansion Valve N IN Connection Terminal lt Connect to Optional M NET Adapter Board gt ACL1 ACL4 Reactor CkK OU Connection Terminal CNVMNT Connector CY1 CY2 Capacitor C B Controller Circuit Board lt Connect to Optional M NET Adapter Board gt CK Capacitor SW1 Switch lt Manual Defrost Defect History Record LED1 LED2 LED lt Operation Inspection Indicators gt RS Rush Current Protect Resistor Reset Refrigerant Adress gt F1 F4 FUSE lt T6 3AL250V gt P B Power Circuit Board SW4 Switch lt Test Operation gt X51 X52 Relay TB U VW_ Connection Terminal lt U V W Phase gt SW5 Switch lt Function Switch Model Select gt 140 only _ i LEV C 63H a i TH33 TH32TH7 TH6 TH3 TH4 When MANET adaptor Is connected C B uri eees NF 69 69 XIII oo bessa AL AL WHT 13 12 1 4 12 21 1 6 2 3 EE MS LL TH33 TH32 TH7 6 TH3 THA teva LEVB pesseta CNVMNT CNN s NA YLW BLK RED WHT WHT WHT RED ING i WHT WHT 2g Zee M NET ADAPTER CNF2 os a 5 et sf vee Ae Ts 8868 ssssssssssssss 0s us 63H 1 CNM 4 Foren 3 gt YLW WHT 3
140. door unit 1 Current sensor error Indoor unit 2 Abnormal low pressure Indoor unit 3 Compressor overcurrent interruption indoor unita Abnormality of refrigerant Abnormality of indoor units Communication error of M NET system Inspection unit Contents to be inspected When power is turned on 63H connector yellow is open Indoor outdoor communication error Signal receiving error Outdoor unit Indoor outdoor communication error Transmitting error Outdoor unit Miswiring of indoor outdoor unit connecting wire excessive number of indoor units 4 units or more Miswiring of indoor outdoor unit connecting wire converse wiring or disconnection Startup time over Communication error except for outdoor unit OCH527B 86 SW2 setting Display detail The black square MM indicates a switch position Explanation for display Pipe temperature Liquid TH3 40 90 40 90 When the coil thermistor detects 0 C or below and temperature are displayed by turns Example When 10 C 0 5 secs 0 5secs 10 gt 2 secs Discharge temperature TH4 3 217 3 217 When the discharge thermistor detects 100 C or more hundreds digit tens digit and ones digit are displayed by turns Example When 105 C 0 5 secs 0 5secs 1 gt 05
141. dy felt and compressor shell felt 9 Cutting the band and remove the rubber mount 10 Recover refrigerant 11 Remove 3 compressor fixing nuts by using a spanner or a adjustable wrench 12 Remove the welded pipe of compressor inlet and oullet Note Recover refrigerant without spreading it in the air Photo 12 Compressor shell felt Compressor j T E Tg Rubber NA P 2 i P Ai N Band Compressor body felt Separator ee Compressor Ixing screw fixing nut 13 Removing the power receiver 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Photo 1 4 Remove the back panel See Photo 1 5 Remove the electrical parts box See Photo 5 6 Recover refrigerant 7 Remove 4 welded pipes of power receiver inlet and outlet 8 Remove 2 receiver leg fixing screws 4 x 10 9 Remove the power receiver together with the receiver leg Note Recover refrigerant without spreading it in the air OCH527B Photo 13 receiver Valve bed NG Receiver leg fixing screw 130 PUHZ ZRP60VHA PUHZ ZRP71VHA OPERATING PROCEDURE 1 Removing the service panel and top panel 1 Remove 3 service panel fixing screws 5 x 12 and slide the hook on the right downward to remove the service panel 2 Remove screws 3 for front 3 for rear 5 x 12 of the top panel and remove it PHOTOS Photo 1 Top panel fixing screws
142. e short cycle voltage of noise and the like have entered into transmission wire continuously Transmission quantity has increased and transmission is not possible because there was wiring mistake of terminal block for transmission wire TB3 and terminal block for central control TB7 in outdoor unit Transmission are mixed with others and occupation rate on transmission wire rose because of defective repeater a function to connector or disconnect transmission of control and central control system of outdoor unit then abnormality is detected Check if transmission wire of indoor unit FRESH MASTER LOSSNAY or remote controller is not connected to terminal block for central control TB7 of outdoor unit Check if transmission wire of indoor unit FRESH MASTER or LOSSNAY is not connected to terminal block for transmission wire of outdoor unit Check if terminal block for transmission wire TB3 and terminal block for central control TB7 is not connected Check transmission waveform or noise on transmission wire Communication error with communication processor Defective communication between unit processor and transmission processor Note The address and attribute display at remote controller indicate the controller that detected abnormality OCH527B Data of transmission processor or unit processor is not transmitted normally because of accidental trouble such as noise or thunder surge
143. e display of indoor suction air temperature 3 Automatic cooling heating display setting AUTO MODE DISP C H Setting the use or non use of the display of Cooling or Heating display during operation with automatic mode Function selection flowchart Refer to next page 1 Stop the air conditioner to start remote controller function selection mode gt 2 Select from item1 gt 3 Select from item2 gt 4 Make the setting Details are specified in item3 5 Setting completed 6 Change the display to the normal one End Detailed setting 4 1 CHANGE LANGUAGE setting The language that appears on the dot display can be selected Press the MENU button to change the language Japanese JP English GB German D Spanish E Russian RU Italian l Chinese CH French F 4 2 Function limit 1 Operation function limit setting operation lock To switch the setting press the OON OFF button nol All operation buttons except D ON OFF button are locked no2 All operation buttons are locked OFF Initial setting value Operation lock setting is not made To make the operation lock setting valid on the normal screen it is necessary to press buttons Press and hold down the FILTER and ON OFF buttons at the same time for 2 seconds on the normal screen after the above setting is made 2 Use of automatic mode setting
144. e number of pulse signal lt Connection between the outdoor controller board and the linear expansion valve gt Outdoor controller board Connector LEV A LEV B Opening a valve 8 7 gt 6 gt 5 gt 4 gt 3 gt 2 1 gt 8 Closing a valve 1 2 3 4 5 gt 6 gt 7 8 1 The output pulse shifts in above order When linear expansion valve operation stops all output phase become OFF 2 Linear expansion valve operation When the switch is turned on 700 pulse closing valve signal will be sent till it goes to point in order to define the valve position ee The pulse signal is being sent for about 20 seconds fes When the valve moves smoothly there is no sound or vibration 2 occurring from the linear expansion valve however when the 5 i pulse number moves from to or when the valve is locked 3 more sound can be heard I No sound is heard when the pulse number moves from to in case coil is burnt out or motor is locked by open phase gt Close open z Sound can be detected by placing the ear against the screw driv er handle while putting the screw driver to the linear expansion valve 500 pulse Opening a valve all the way 1 1 M Pulse number Extra tightening about 32 pulse OCH527B 66 Linear expansion valve ZRP100 ZRP140 1 Operation summary ot the lin
145. e request code function therefore no request codes are displayed Po 3 sas Y Request content Descniption Unit Remarks Display range 0 Operation state Referto 13 1 2 Detail Contents in Request Code _ 1 Compressor Operating current rms 0 50 A 2 Compressor Accumulated operating time 0 9999 10 hours 3 Compressor Number of operation times 0 9999 100 times 4 Discharge temperature TH4 3 217 Cc 5 Outdoor unit Liquid pipe 1 temperature TH3 40 90 iC 6 Outdoor unit Liquid pipe 2 temperature 40 90 c 7 Outdoor unit 2 phase pipe temperature TH6 39 88 c 8 9 Outdoor unit Outside air temperature TH7 39 88 C 10 Outdoor unit Heatsink temperature TH8 40 200 C 11 12 Discharge superheat SHd 0 255 13 Sub cool SC 0 130 c 14 15 16 Compressor Operating frequency 0 255 Hz 17 Compressor Target operating frequency 0 255 Hz 18 Outdoor unit Fan output step 0 10 Step 19 Outdoor unieran a speed f 0 _9999 ea Only for air conditioners with DC fan motor 20 Outdoor Boren f speed f 0 _ 9999 rpm 0 is displayed if the air conditioner is a single fan Only for air conditioners with DC fan motor type 21 22 LEV A opening 0 500 Pulses 23 LEV B opening 0 500 Pulses 24 25 Primary current 0 50 A 26 DC bus volta
146. e the maintenance setting Main Main menu 3 3 Maintenance Initial setting gt Service Main display Zee Giaa s When the Service menu is selected a window will appear asking for the pass word To enter the current maintenance password 4 numerical digits move the cursor to the digit you want to change with the F1 or F2 button Set each number 0 through 9 with the F3 or F4 button amp Then press the button Note The initial maintenance password is 9999 Change the default password as necessary to prevent unauthorized access Have the password available for those who need it If you forget your maintenance password you can initialize the password to the default password 9999 by pressing and holding the F1 and F2 buttons simultaneously for three seconds on the maintenance password setting screen 000 Service menu Enter maintenance password 1999 Select Y If the password matches the Service menu will appear The type of menu that appears depends on the connected indoor units type Note Air conditioning units may need to be stopped to make certain set tings There may be some settings that cannot be made when the system is centrally controlled D A screen will appear that indicates the setting has been saved Navigating through the screens To go back to the Main
147. e the back cover panel 5 Remove the electrical parts box See Photo 4 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the valve bed 7 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel 8 Remove 2 separator fixing screws 4 x 10 and remove the separator 9 Recover refrigerant 10 Remove the 3 points of the compressor fixing nut using a spanner or a adjustable wrench 11 Remove the welded pipe of compressor inlet and outlet then remove the compressor Note Recover refrigerant without spreading it in the air Photo 11 Valve bed Valve bed fixing screw Separator fixing screw Power 13 Removing the power receiver 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 1 4 Remove 2 back cover panel fixing screws 5 x 12 and remove the back cover panel 5 Remove the electrical parts box See Photo 4 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 then remove the valve bed 7 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel 8 Recover refrigerant 9 Remove 4 welded pipes of power receiver inlet and outlet 10 Remove
148. e time for 2 minutes or more and turn the power on again If malfunction was accidental the unit returns to normal Check address switch of abnormality generated address Check disconnection or looseness of abnormality generated or abnormality detected transmission wire terminal block and connector Check if tolerance range of transmission wire is not exceeded Check if type of transmission wire is correct or not If there were some trouble of O above repair the defect then turn off the power supply of outdoor unit indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again If there was no trouble with above in single refrigerant system one outdoor unit controller of displayed address or attribute is defective lt If there was no trouble with above in different refrigerant system 2 or more outdoor units judge with If address of abnormality source is the address that should not exist there is the unit that memorizes nonexistent address information Delete useless address information with manual setting function of remote controller Only the system FRESH MASTER or LOSSNAY are connected to or the system that is equipped with group setting of different refrigerant system If there was no trouble with above replace the controller board of displayed address or attribute If the unit does not return normally multi controlle
149. e welded part can be removed easily by removing the right side panel Note 3 When installing the 4 way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 5 6 7 10 Removing LEV 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 then remove the valve bed 4 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel 5 Remove the LEV coil 6 Recover refrigerant 7 Remove the welded part of LEV Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the LEV cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 11 Removing the high pressure switch 63H 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 4 Pull out the lead wire of high pressure switch 5 Recover refrigerant 6 Remove the welded part of high pressure switch Note 1 Recover refrigerant without spreading it in the air Note 2 The
150. ear expansion valve Linear expansion valve opens closes through stepping motor after receiving the pulse signal from the outdoor controller board e Valve position can be changed in proportion to the number of pulse signal lt Connection between the outdoor controller board and the linear expansion valve gt Outdoor controller board Connector LEV A LEV B LEV G lt a ieee Opening a valve 8 gt 7 gt 6 gt 5 gt 4 gt 3 2 1 gt 8 Closing a valve 1 2 3 4 5 6 7 8 1 The output pulse shifts in above order When linear expansion valve operation stops all output phase become OFF 2 Linear expansion valve operation When the switch is turned on 700 pulse closing valve signal will be sent till it goes to point in order to define the valve position The pulse signal is being sent for about 20 seconds When the valve moves smoothly there is no sound or vibration occurring from the linear expansion valve however when the pulse number moves from to or when the valve is locked more sound can be heard No sound is heard when the pulse number moves from to in case coil is burnt out or motor is locked by open phase Valve position capacity Sound can be detected by placing the ear against the screw driv er handle while putting the screw driver to the linear expansion valve 500 pulse Opening a valve all the
151. ecover refrigerant Remove the welded part of 4 way valve Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the back panel Note 3 When installing the 4 way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 1 2 3 4 5 6 7 8 9 Removing LEV Remove the service panel See Photo 2 Remove the top panel See Photo 1 Remove the front panel See Photo 1 Remove the back panel See Photo 1 Remove the electrical parts box See Photo 5 Remove the LEV coil See Photo 9 Recover refrigerant Remove the welded part of LEV Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the back panel Note 3 When installing the LEV cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 1 2 3 4 5 6 7 8 Photo 10 4 way valve LEV coil LEV B Ie Ni E y s LEV B WI ZV a 4 way valve 21S4 4 way valve coil fixing screw 10 Removing the high pressure switch 63H 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Photo 1 4 Remove the back panel See Photo 1 5 Remove the electrica
152. ection method Case Judgment and action M NET NO RESPONSE Abnormal if a message was transmitted and there were reply ACK that message was received but response command does not return Transmitting side detects abnormality every 30 seconds 6 times continuously Note The address and attribute displayed at remote controller indicate the con troller that did not reply ACK O Transmitting condition is repeated fault because of noise and the like Extinction of transmission wire voltage and signal is caused by over range transmission wire Maximum distance 200m Remote controller line 12m Extinction of transmission wire voltage and signal is caused by type unmatched transmis sion wire With shield wire CVVS CPEVS With normal wire no shield VCTF VCTFK CVV CVS VVR VVF VCT Diameter 1 25mm or more Accidental malfunction of abnormality generated control ler 11 5 TROUBLESHOOTING OF PROBLEMS Phenomena Factor Check transmission waveform or noise on transmission wire Turn off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again If mal function was accidental the unit returns to normal If the same abnormality generates again controller of displayed address and attribute may be defective Countermeasure 1 Remote controller display does not work
153. ed remote controller lt PAR 21MAA gt TEST RUN and the currently selected Operating procedures While the room temperature display on the remote A controller is PLEASE WAIT the remote controller is disabled operation meds ate displayed alternately I Wait until PLEASE WAIT disappears before using remote controller Displays the remaining 1 Turn on the main power supply PLEASE WAIT appears for about 2 minutes after power test run time supply is turned on 1 Press TEST button twice The TEST RUN appears on the screen Cooling mode Check if cool air blows and water is drained Press OPERATION SWITCH eating mode Check if warm air blows It takes a little A MITSUBISHI ELECTRIC TEST RUM button while until warm air blows 4 Press lAIR DIRECTION Jbutton Check for correct motion of auto vanes q Sal oresar t TEMP ONOFF D C gt cides Seq E uq m 5 Check the outdoor unit fan for The outdoor unit features automatic capacity control to 2 correct running provide optimum fan speeds Therefore the fan keeps running at a low speed to meet the current outside air condition unless it exceeds its available maximum power Then in actuality the fan may stop or run in
154. election mode Change the setting when needed ltem 1 Item 2 Item 3 Setting content 1 Change Language CHANGE LANGUAGE Language setting to display Display in multiple languages is possible 2 Function limit FUNCTION SELECTION Operation function limit setting operation lock LOCKING FUNCTION Setting he range of operation limit operation lock Use of automatic mode setting SELECT AUTO MODE Setting he use or non use of automatic operation mode e Setting he temperature adjustable range maximum minimum 3 Mode selection MODE SELECTION 1 2 3 Temperature range limit setting LIMIT TEMP FUNCTION 1 Remote controller main sub setting CONTROLLER MAIN SUB e Selecting main or sub remote controller When two remote controllers are connected to one group one controller must be set to sub 2 Use of clock setting CLOCK e Setting the use or non use of clock function 3 Timer function setting WEEKLY TIMER Setting the timer type 4 Contact number setting for error situation CALL Contact number display in case of error e Setting the telephone number 4 Display change DISP MODE SETTING 1 Temperature display C F setting TEMP MODE C F Setting he temperature unit C or F to display 2 Room air temperature display setting ROOM TEMP DISP SELECT Setting he use or non use of th
155. elf with the flow of the function selection procedure In this section an example of setting the room temperature detection position is given For actual operations refer to steps to Setting number Refrigerant address Unit number Mode number 4 A MITSUBISHI ELECTRIC ik Weed B eq La TEMP CQ ON OFF CV O A gt CissitG038 MENU ON OFF lt C Si lan BAGI MONITORISET DAY Sane 38E HECK est Modes 01 to 14 can be activated GN CA C gt oO by pressing buttons and PAR 21MAA 3 eoo JAAN a simultaneously and modes 15to 28 by pressing buttons and Q J C D Selecting functions using the wired remote controller Check the function selection setting Switch to function setting mode 2 For modes 15 and higher Press and at the same time press O and at the same time with the remote controller stopped Specify refrigerant address 00 outdoor unit Specify unit No 00 indoor unit Use and O Specified indoor unit FAN operation Enter the setting Press Change refrigerant Select mode No 02 address or unit No room temperature detection position Select setting No 03 remote controller fixed Use and Example Selecting room temperature detection position Enter
156. emperature range can be changed on cooling dry mode The temperature range can be changed on heating mode The temperature range can be changed on automatic mode Automatic filter elevation panel up down operation mode Not necessary to set this mode Refer to OPERATION MANUAL of Optional Parts Panel for details on operation Fixed air flow direction mode Not necessary to set this mode Refer to OPERATION MANUAL of indoor unit for details on operation The remote controller will be the main controller Initial setting value The remote controller will be the sub controller The clock function can be used Initial setting value The clock function cannot be used Weekly timer can be used Initial setting value Auto off timer can be used Simple timer can be used Timer mode cannot be used The set contact numbers are not displayed in case of error Initial setting value The set contact numbers are displayed in case of error The temperature unit C is used Initial setting value The temperature unit F is used Room air temperature is displayed Initial setting value Room air temperature is not displayed One of Automatic cooling and Automatic heating is displayed under the automatic mode is running Initial setting value Only Automatic is displayed under the automatic mode The setting of the following remote controller functions can be changed using the remote controller function s
157. ems indicate that no function settings are made Mode 1 2 3 Screen appearance varies depending on the Unit No setting Mode Hee Mode 4 1 2 3 Request Y Use the F1 or F2 button to move the cursor to select the mode number Function setting A Ref address 8 Unit 1 1 4 and change the setting number with the F3 or F4 button Mode 1 12 3 Mode 2 1 B 3 Mode 3 1 8 3 Mode 4 1 0 3 Request Y Do When the settings are completed press the Q button to send the setting Function setting _ data from the remote controller to the indoor units Pe ectiess O Cia When the transmission is successfully completed the screen will return to the Function setting screen Sending data Note lt Make the above settings only on Mr Slim units as necessary The above function settings are not available for the City Multi units lt Table 1 summarizes the setting options for each mode number Refer to H L ang the indoor unit Installation Manual for the detailed information about ini tial settings mode numbers and setting numbers for the indoor units lt Be sure to write down the settings for all functions if any of the initial V settings has been changed after the completion of installation work OCH527B 98 12 1 2 Selecting functions using the wired remote controller lt PAR 21MAA gt First try to familiarize yours
158. equest code display area 1 Press the TEST button for 3 seconds so that Maintenance mode appears on the screen at 2 Press the CHECK button for 3 seconds to switch to Maintenance monitor Note Itis not possible to switch to Maintenance monitor during data request in maintenance mode i e while is blinking since no buttons are operative Operating the service inspection monitor appears on the screen at when Maintenance monitor is activated The display at now allows you to set a request code No 3 Press the TEMP buttons C v gt and C A_ to select the desired refrigerant address 4 Press the CLOCK buttons C D gt and C A_ to set the desired request code No 5 Press the FILTER button to perform data request The requested data will be displayed at in the same way as in maintenance mode Data collected during operation of the remote controller will be displayed The collected data such as temperature data will not be updated automatically even if the data changes To display the updated data carry out step 4 again Canceling the Monitoring the operation data 6 While Maintenance monitor is displayed press the CHECK button for 3 seconds to return to maintenance mode 7 To return to normal mode press the MD ON OFF button OCH527B 109 13 2 Reguest code list Certain indoor outdoor combinations do not have th
159. er circuit board with tester If open is detected replace the power circuit board Indoor outdoor unit communication error Transmitting error Abnormal if 1 receiving is detected 30 times continuously though indoor controller board has transmitted 0 Defective transmitting receiving circuit of indoor controller board Noise has entered into power supply Noise has entered into outdoor control wire Turn the power off and on again to check If abnormality generates again replace indoor controller board Indoor outdoor unit communication error Signal receiving error Outdoor unit Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes OCH527B Contact failure of indoor outdoor unit connecting wire Defective communication circuit of outdoor controller circuit board Defective communication circuit of indoor controller board Noise has entered into indoor outdoor unit connecting wire 48 Check disconnection or looseness of indoor outdoor unit connecting wire of indoor or outdoor units Turn the power off and on again to check Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again Error Code Abnormal points and detection method Case Judgment and action Indoor outdoor unit communication error Transmitting error Outdoor unit Abnor
160. er display area indoor unit will start fan operation This helps you find the location of the indoor unit for which you want to perform function selection However if 00 or AL 0 is selected as the unit number all the indoor units corresponding to the specified Mode number et refrigerant address will start fan operation mm gt i ULU U display section lt Example When the refrigerant address is set to 00 and the unit number is 02 00 refrigerant address Outdoor unit 88 will flash in the room temperature display area if the selected refrigerant address does not exist in the system Furthermore if F appears and flashes in the unit number display area and the refrigerant address display area also flashes there are no units that corre Indoor unit No 01 No 02 No 03 spond to the selected unit number In this case the refrigerant address and unit IN number may be incorrect so repeat steps and to set the correct ones Fan mode amp Remote controller When grouping different refrigerant systems if an indoor unit other than the one to which the refrigerant address has been set performs fan operation there may be another refrigerant address that is the same as the specified one In this case check the DIP switch of the outdoor unit to see whether such a refrigerant address exists Select the mode number
161. er limit 28 C 17 C Automatic mode Lower limit 19 C 28 C Upper limit 28 C 19 C OCH527B 107 4 3 Mode selection setting 1 Remote controller main sub setting To switch the setting press the ON OFF button Main The controller will be the main controller Sub The controller will be the sub controller 2 Use of clock setting To switch the setting press the ON OFF button ON The clock function can be used OFF The clock function cannot be used To switch the setting press the ON OFF button Choose one of the followings WEEKLY TIMER initial setting The weekly timer can be used AUTO OFF TIMER The auto off timer can be used SIMPLE TIMER The simple timer can be used TIMER MODE OFF The timer mode cannot be used When the use of clock setting is OFF the WEEKLY TIMER cannot be used 4 Contact number setting for error situation To switch the setting press the ON OFF button CALL OFF The set contact numbers are not displayed in case of error CALL The set contact numbers are displayed in case of error The contact number can be set when the display is as shown on the left Setting the contact numbers To set the contact numbers follow the following procedures Move the flashing cursor to set numbers Press the TEMP V and A button to move the cursor to the right left Press the CLOCK
162. eration lock Use to lock selected functions The locked functions cannot be operated Maintenance Auto descending panel Auto descending panel Optional parts Up Down you can do Manual vane angle Use to set the vane angle for each vane to a fixed position Initial setting Main Sub When connecting two remote controllers one of them needs to be designated as a sub controller Clock Use to set the current time Main display Use to switch between Full and Basic modes for the Main display lt The default setting is Full Contrast Use to adjust screen contrast OCH527B 104 Setting and display items Setting details Initial setting Display Make the settings for the remote controller related items as necessary details Clock The factory settings are Yes and 24h format Temperature Set either Celsius C or Fahrenheit F Room temp Set Show or Hide Auto mode Set the Auto mode display or Only Auto display Auto mode Whether or not to use the AUTO mode can be selected by using the button This setting is valid only when indoor units with the AUTO mode function are connected Administrator The administrator password is required to make the settings for the following items password e Timer setting Energy save setting Weekly timer setting lt Restriction setting Outdoor unit silent mode setting Night set back Language Use t
163. errors are found check the transmission line for external noise inter ference Begin Y amp If the button is pressed after the remote controller check results are dis played remote controller check will end and the remote controller will automati cally reboot itself Check the remote controller display and see if anything is displayed including lines Nothing will appear on the remote controller display if the correct voltage 8 5 12 VDC is not supplied to the remote con troller If this is the case check the remote controller wiring and indoor units OCH527B 36 11 3 3 Self diagnosis lt PAR 21MAA gt Ifaproblem occursinthe air conditioner the indoor and outdoor units will stop and the problem is shown in the remote controller display CHECK and the refrigerant address are displayed on the temperature D display and the error code and unit number are displayed alternately as a shown below If the outdoor unit is malfunctioning the unit number will be 00 DONOFF a In the case of group control for which one remote controller controls s gt multiple refrigerant systems the refrigerant address and error code of the OES OMEN CON r an unit that first experienced trouble i e the unit that transmitted the error za AS T code will be displayed kan oco Si en To clear the error co
164. es Error code E0 Abnormal if sub remote controller could not receive any signal for 2 minutes Error code E0 Abnormal if indoor controller board can not receive normally any data from remote controller board or from other indoor controller board for 3 minutes Error code E4 Indoor controller board cannot receive any signal from remote controller for 2 minutes Error code E4 OCH527B Contact failure at transmission wire of remote controller All remote controllers are set as sub remote controller In this case E0 is displayed on remote controller and E4 is displayed at LED LED1 LED2 on the outdoor controller circuit board Miswiring of remote controller Defective transmitting receiving circuit of remote controller Defective transmitting receiv ing circuit of indoor controller board of refrigerant address 0 Noise has entered into the transmission wire of remote controller 47 Check disconnection or looseness of indoor unit or transmission wire of remote controller Set one of the remote controllers main if there is no problem with the action above Check wiring of remote controller e Total wiring length max 500m Do not use cable x 3 or more lt The number of connecting indoor units max 16 units e The number of connecting remote control ler max 2 units When it is not the above mentioned problem of O Diagnose remote controlle
165. etects 100 C or more hundreds digit tens digit and ones digit are displayed by turns Discharge superheat SHd 0 255 Cooling TH4 TH6 Heating TH4 TH5 0 255 When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns Number of defrost cycles 0 FFFE 0 FFFE in hexadecimal notation When more than FF in hex 255 in decimal the number is displayed in order of 16 s and 1625 and 16 s and 16 s places Example When 5000 cycles 0 5 secs 0 5 secs 9 504 gt 2 secs 2 cycles Input current of outdoor unit 0 500 When it is 100 or more hundreds digit tens digit and ones digit are displayed by turns LEV B opening pulse 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns U9 error detail history latest OCH527B Description Display Normal 00 Overvoltage error 01 Undervoltage error 02 Input current sensor error 04 L phase open error Abnormal power synchronous signal 08 PFC error ZRP35 71V Overvoltage Undervoltage Overcurrent PFC IGBT error ZRP60 140V Undervoltage 10 20 Display examples for multiple errors Overvoltage 01 Undervoltage 02 03 Undervoltage 02 Power sync signal error 08 0 L phase
166. etween indoor and outdoor units indoor unit s 8 P8 Pipe temperature error service manual 9 E4 E5 Remote controller signal receiving error 10 11 u 12 Fb FB 3 Indoor unit control system error memory error etc 14 PL Abnormality of refrigerant circuit _ E0 E3 Remote controller transmission error _ E1 E2 Remote controller control board error Output pattern B Errors detected by unit other than indoor unit outdoor unit etc Wireless remote controller Wired remote controller Beeper sounds OPERATION Symptom Remark INDICATOR lamp flashes Check code Number of times 1 E9 Indoor outdoor unit communication error Transmitting error Outdoor unit 2 UP Compressor overcurrent interruption 3 U3 U4 Open short of outdoor unit thermistors 4 UF Compressor overcurrent interruption When compressor locked 5 U2 Abnormal high discharging temperature insufficient refrigerant For details check Abnormal high pr r H r verheatin i 6 U1 Ud UD 3 ace AA e 63H operated Overheating he LED dolay 7 U5 Abnormal temperature of heatsink controller board 8 U8 Outdoor unit fan protection stop 9 U6 Compressor overcurrent interruption Abnormal of power module 10 U7 Abnormality of superheat due to low discharge temperature 11 U9 UH Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit Current sensor error 12 sa 13 14 Others Other
167. g oja sjenuew uollelie su 3y u u AI6 ale sjlelap sejnomed Jo uollpue dx3 ajdwexe o1seq e smoys mojag WeIBeIP 9U 1 SNOILOFUIC ONIUIM ONIdld P S1108 NOLLWONNOS 30VdS JINIS Z un y puna 39VdS 3344 LO OCH527B 8 WIRING DIAGRAM PUHZ ZRP35VKA PUHZ ZRP50VKA SYMBOL NAME SYMBOL NAME TB1 Terminal Block lt Power Supply Indoor Outdoor gt F1 F2 Fuse lt 10A gt MC Motor for Compressor F3 F4 Fuse lt 3 15A gt MF1 Fan Motor 52C Rela 2154 Solenoid Valve Four Way Valve RS1 Resistor 63H High Pressure Switch LED1 LED2 LED lt Operation Inspection Indicators gt TH3 TH33 Thermistor lt Outdoor Pipe gt X52 Relay TH4 Thermistor lt Discharge gt CNMNT Connector TH6 Thermistor lt Outdoor 2 Phase Pipe gt lt Connected to Optional M NET Adapter Board gt TH7 Thermistor lt Outdoor gt CNVMNT Connector TH8 Thermistor lt Heat Sink gt lt Connected to Optional M NET Adapter Board gt TH32 Thermistor lt Comp surface gt CNDM Connector lt Connected for Option Contact Input gt LEV A LEV B Electronic Expansion Valve CN51 Connector lt Connection for Option gt ACL Reactor CNSW Co
168. g operation however the capacity cannot be fully obtained The air does not cool well Refrigerant shortage Filter clogging Heat exchanger clogging Air duct short cycle If refrigerant leaks discharging temperature rises and LEV opening increases Inspect leakage by checking the temperature and opening e Check pipe connections for gas leakage Open intake grille and check the filter Clean the filter by removing dirt or dust on it If the filter is clogged indoor pipe temperature rises and discharging pressure increases Check if heat exchanger is clogged by inspecting discharging pressure lt Clean the heat exchanger Remove the blockage 7 Remote controller display works normally and the unit performs heating operation however the capacity cannot be fully obtained Q Linear expansion valve fault Opening cannot be adjusted well due to linear expansion valve fault Refrigerant shortage Lack of insulation for refrigerant piping Filter clogging Heat exchanger clogging Air duct short cycle Bypass circuit of outdoor unit fault e Discharging temperature and indoor heat exchanger temperature does not rise Inspect the failure by checking discharging pressure lt Replace linear expansion valve If refrigerant leaks discharging temperature rises and LEV opening increases Inspect leakage by checking the temperature and opening e Check pipe connections for g
169. g the indoor power board CN2S DC 12V to DC 16V NO YES OCH527B 56 Troubles concerning power supply e Bad wiring of the outdoor controller board lt The fuses on the outdoor controller circuit board are blown e Bad wiring of the outdoor controller board lt The fuses on the outdoor controller circuit board are blown e Defective indoor controller board e Miswiring breaking or poor connection of in door outdoor connecting wire e Defective indoor power board e Check the power wiring to the outdoor unit e Check the breaker e Check the wiring of the outdoor unit e Check if the wiring is bad Check if the fuses are blown The fuses on the outdoor controller circuit board will be blown when the indoor outdoor connecting wire short circuits e Check if miswiring breaking or poor contact is causing this problem Indoor outdoor connecting wire is polarized 3 core type Connect the indoor unit and the outdoor unit by wiring each pair of S1 S2 and S3 on the both side of indoor outdoor terminal blocks e Replace the indoor controller board e Check if there is miswiring or breaking of wire e Replace the indoor power board Symptoms Nothing is displayed on the remote controller Diagnosis flow LED display of the indoor controller board LED1 LED2 LED3 OF ig Inspection method and troubleshooting
170. g wire from terminal block 4 Disconnect the connector CNF1 CNF2 LEV A and LEV B on the controller circuit board lt Symbols on the board gt e Fan motor CNF1 CNF2 lt LEV LEV A and LEV B LEV C 140 only 5 Disconnect the pipe side connections of the following parts Thermistor lt Outdoor pipe gt TH3 TH33 lt Thermistor lt Discharge gt THA e Thermistor lt Outdoor 2 phase pipe Outdoor gt TH7 6 e High pressure switch 63H 4 way valve coil 21S4 e Thermistor lt Comp surface gt TH32 6 Remove the terminal cover and disconnect the compressor lead wire 7 Remove 2 electrical parts box fixing screws 4 x 10 and detach the electrical parts box by pulling it upward The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right Electrical parts box Electrical parts box fixing screw OCH527B 136 OPERATING PROCEDURE PHOTOS 4 Removing the thermistor lt Outdoor 2 phase pipe gt TH6 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 6 red on the controller circuit board in the electrical parts box 4 Loosen the clamp for the lead wire in the rear of the electrical parts box 5 Pull out the thermistor lt Outdoor 2 phase pipe gt TH6 from the sensor holder Note When replacing thermistor lt Outdoor 2 phase pipe gt TH6 replace it together with thermistor lt Ou
171. ge 180 370 V 27 28 29 Number of connected indoor units 0 4 Units 30 Indoor unit Setting temperature 17 30 c 31 Indoor unit Intake air temperature lt Measured by thermostat gt 8 39 C 32 Indoor unit Intake air temperature Unit No 1 8 39 c O is displayed if the target unit is not present lt Heat mode 4 deg correction gt 33 Indoor unit Intake air temperature Unit No 2 8 39 c t lt Heat mode 4 deg correction gt 34 Indoor unit Intake air temperature Unit No 3 8 39 c t lt Heat mode 4 deg correction gt 35 Indoor unit Intake air temperature Unit No 4 8 39 c t lt Heat mode 4 deg correction gt 36 37 Indoor unit Liquid pipe temperature Unit No 1 39 88 c o is displayed if the target unit is not present 38 Indoor unit Liquid pipe temperature Unit No 2 39 88 6 t 39 Indoor unit Liquid pipe temperature Unit No 3 39 88 C t 40 Indoor unit Liquid pipe temperature Unit No 4 39 88 c t 41 42 Indoor unit Cond Eva pipe temperature Unit No 1 39 88 c 0 is displayed if the target unit is not present 43 Indoor unit Cond Eva pipe temperature Unit No 2 39 88 c t 44 Indoor unit Cond Eva pipe temperature Unit No 3 39 88 c t 45 Indoor unit Cond Eva pipe temperature Unit No 4 39 88 t 46 47 48 Thermostat ON operating time 0 999 Minutes 49 Test run elapsed time 0 120 Minutes lt Not possible to activate maintenance mode during the test r
172. ghting Cancellation of postponement 00 is displayed in case of no postponement Code display OCH527B Operation mode on error occurring 87 Operation mode of when operation stops due to error is displayed by setting SW2 like below SW2 ON Code display SW2 setting Display detail The black square W indicates a switch position Explanation for display Pipe temperature Liquid TH3 on error occurring 40 90 40 90 When the coil thermistor detects 0C or below and temperature are displayed by turns Example When 15 C 0 5 secs 2 secs gt 00 0 5secs i 15 Discharge temperature TH4 on error occurring 3 217 3 217 When the temperature is 100 C or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 C 0 5 secs 0 5secs 2 secs 1 gt 30 gt Compressor operating current on error occurring 0 50 Error code history 1 latest Alternate display of abnormal unit number and code When no error history 0 and are displayed by turns Code display Error code history 2 Alternate display of error unit number and code When no error history 0 and are displayed by turns Code dis
173. he same refrigerant system 17 DOJ IDO HPO no no JOO PO 09 PO o 21 1 The functions above are available only when the wired remote controller is used The functions are not available for floor standing models Meaning of Function setting mode02 indoor temperature detecting REMOTE REMOTE MAN MAN 1 Average data of the sensor on all the indoor units No2 The data of the sensor on the indoor unit that connected with remote controller No 3 The data of the sensor on main remote controller OCH527B 95 2 Functions available when setting the unit number to 01 03 or AL 07 in case of wireless remote controller e When setting functions for an indoor unit in an independent system set the unit number to 01 referring to setting the indoor unit number of Operating Procedure e When setting functions for a simultaneous Twin Triple indoor unit system set the unit number to 01 to 03 for each indoor unit in case of selecting different functions for each unit referring to setting the indoor unit number of Operating Procedure e When setting the same functions for an entire simultaneous Twin Triple indoor unit system set refrigerant address to AL 07 in case of wireless remote controller referring to setting the indoor unit number of Operating Procedure Function Settings Setting No
174. he 4 way valve cover it with a wet 9 Removing the LEV Remove the service panel See Photo 1 Remove the top panel See Photo 1 Remove the electrical parts box See Photo 4 ere wa wa 1 2 3 4 valve bed of the unit and then remove the right side panel 6 Remove the LEV 7 Recover refrigerant 8 Remove the welded part of linear expansion valve ing the right side panel Note 3 When installing the LEV cover it with a wet cloth to prevent it from heating 120 C or more then oxidized 133 OCH527B Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the 5 Remove 3 right side panel fixing screws 5 x 12 in the rear Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov braze the pipes so that the inside of pipes are not Photo 8 4 way valve coil 4 way valve High pressure switch 63H Figure 1 Thermistor lt Outdoor pipe gt TH3 Thermistor lt Outdoor pipe gt 4 way valve TH33 4 way valve coil 21S4 LEV coil LEV B High pressure LEV B switch 63H y LEV coil LEV A ani LEVA Thermistor TA lt Discharge gt TH4 OPERATING PROCEDURE PHOTOS 10 Removing the high pressure switch 63H 1 Remove the service panel See Photo 1 2 Remove ihe top panel See Photo 1 3 Remove ihe elecirical
175. heat SHd at time of error 0 255 C 119 Sub cool SC at time of error 0 130 C 120 Compressor Operating frequency at time of error 0 255 Hz 124 Outdoor unit at time of error PET Step Fan output step 120 Outdoor unit at time of eer p 0 _9999 iit lt Fan 1 speed Only for air conditioners with DC fan 123 Outdoor unit at time of orror 0 _ 9999 ave O is displayed if the air conditioner is a single Fan 2 speed Only for air conditioners with DC fan fan type 124 125 LEV A opening at time of error 0 500 Pulses 126 LEV B opening at time of error 0 500 Pulses 127 128 129 130 Thermostat ON time until operation stops due to error 0 999 Minutes 131 132 Indoor Liquid pipe temperature at time of error 39 88 c Average value of all indoor units is displayed if the air condi tioner consists of 2 or more indoor units twin triple quad 133 Indoor Cond Eva pipe temperature at time of error 39 88 C Average valie oral indoor units qisplayeq me air condi tioner consists of 2 or more indoor units twin triple quad 134 Indoor arume of error f 39 88 c Intake air temperature lt Thermostat judge temperature gt 135 136 137 138 139 140 146 147 148 149 150 Indoor Actual intake air temperature 39 88 c 151 Indoor Liquid pipe temperature 39 88 Cc 152 Indoor Cond Eva pipe temperature 39 88 Cc OCH527B 112
176. heck LED display on outdoor controller circuit board Refer to 11 10 Check protection device connector 63H for contact failure Refer to 11 9 3 When pressing the remote controller operation switch the OPERATION display is appeared but it will be turned off soon After cancelling controller the remote controller operation switch will be not accepted for approx 30 seconds OCH527B to select function from the remote 53 Normal operation Phenomena Factor Countermeasure 4 Even controlling by the wireless remote controller no beep is heard and the unit does not start operating Operation display is indicated on wireless remote controller The pair number settings of the wireless remote controller and indoor controller board are mismatched Check the pair number settings When operating by the wireless remote controller beep sound is heard however unit does not start operating No operation for 2 minutes at most after the power supply ON Local remote controller operation is prohibited Remote controlling adaptor is connected to CN32 on the indoor controller board e Local remote controller operation is prohibited by centralised controller etc since it is connected to MELANS Phenomena of No 2 Normal operation Normal operation Check the phenomena No 2 Remote controller display works normally and the unit performs coolin
177. hown below SW7 1 swe SW3 Energy consumption OFF OFF 100 Demand ON ON OFF 75 function ON ON 50 OFF ON 0 Stop Circuit diagram example External input adapter Demand function PAC SC36NA E On site arrangement Outdoor unit control board X Y Relay Max 10 m Power supply for relay OCH527B 83 lt Display function of inspection for outdoor unit gt The blinking patterns of both LED1 green and LED2 red indicate the types of abnormality when it occurs Types of abnormality can be indicated in details by connecting an optional part A Control Service Tool PAC SK52ST to connector CNM on outdoor controller board Display 1 Normal condition Outdoor controller board A Control Service Tool LED1 Green LED2 Red Error code Indication of the display Unit condition When the power is turned on Lighted Lighted Alternately blinking display When unit stops Lighted Not lighted Operation mode When compressor is warming up Lighted Not lighted When unit operates Lighted Lighted C5 H7 etc 2 Abnormal condition Indication SS O TE bow Contents Inspection method eka LED1 Green LED2 Red p page 2 blinking Check if connector 63H on the outdoor controller board is Connector 63H is open not disconnected Check continuity of pressure switch 63H by tester inking Miswiring of indoor ou
178. ince compressor started operating or previous compulsory defrosting finished e Pipe temperature is less than or equal to 8 C Forced defrost will finish if certain conditions are satisfied Forced defrost can be done if above conditions are satistied when DIP SW1 1 is changed from OFF to ON After DIP SW1 1 is changed from OFF to ON there is no problem if DIP SW1 1 is left ON or changed to OFF again This depends on the service conditions OCH527B 81 Type of Action by the switch operation Switch Function ON OFF Effective timing No function Power failure automatic recovery 2 Auto recovery No auto recovery When power supply ON No function e Model select Following SW5 6 referenc Mode select 3 Demand function Low noise mode Always No function Max Hz setting cooling Max Hz cooling x 0 8 Normal Always Max Hz setting heating Max Hz heating x 0 8 Normal Always Breaker capacity setting 5 16A 25A When power supply ON Defrost setting For high humidity Normal Always No function No function No function No function Dip switch 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 1 2 Function switch Normal Always No function sn ad D The black square m indicates a switch position MODEL
179. ing number contact information dealer s phone number can be displayed The unit model manufacturing number and contact information need to be registered in advance to be displayed Weekly timer Use to set the weekly operation On Off times Up to eight operation patterns can be set for each day Clock setting is required Not valid when the On Off timer is enabled Energy saving Auto return Use to get the units to operate at the preset temperature after performing energy save operation for a specified time period Time can be set to a value from 30 and 120 in 10 minute increments This function will not be valid when the preset temperature ranges are restricted Schedule Set the start stop times to operate the units in the energy save mode for each day of the week and set the energy saving rate Up to four energy save operation patterns can be set for each day lt Time can be set in 5 minute increments e Energy saving rate can be set to a value from 0 and 50 to 90 in 10 increments Clock setting is required Night setback Use to make Night setback settings e Select Yes to enable the setting and No to disable the setting The temperature range and the start stop times can be set Clock setting is required Restriction Temp range Use to restrict the preset temperature range lt Different temperature ranges can be set for different operation modes Op
180. is necessary to use a filter dryer lt If the diameter of the existing pipes is different from the specified diameter refer to technological data materials to confirm if The existing pipe thickness meets specifica the pipes can be used Measure the existing pipe thickness and check for damage tions and the pipes are not damaged Check if the existing air conditioner can operate After operating the cooling system for about 30 minutes do a pump down work The existing pipe thickness does not meet specifications or the pipes are damaged If the existing air conditioner cannot operate use a refrigerant recovery device to collect the refrigerant Disconnect the existing air conditioner from the pipes Attach the new air conditioner Perform the airtight test vacuum air purging additional refrigerant charging if necessary and gas leak check In case existing pipes were used for gas or oil heat pump systems be sure to clean the pipes for ZRP100 140 models Use new pipes for ZRP35 71 models The existing pipes cannot be reused Use new pipes OCH527B 4 2 Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series Although the refrigerant piping work for R410A is same as for R22 exclusive tools are necessary so as not to mix with different kind of refrigerant Furthermore as the working pressure of R410A is 1 6 times highe
181. isplayed Code display Indoor pipe temperature Liquid TH2 1 Indoor 1 39 88 39 88 When the temperature is 0C or less temperature are displayed by turns Indoor pipe temperature Cond Eva TH5 1 Indoor 1 39 88 39 88 When the temperature is 0C or less temperature are displayed by turns Indoor pipe temperature Liquid TH2 2 Indoor 2 39 88 39 88 When the temperature is 0C or less temperature are displayed by turns Indoor pipe temperature Cond Eva TH5 2 Indoor 2 39 88 39 88 When the temperature is 0C or less temperature are displayed by turns OCH527B Indoor room temperature TH1 8 39 89 SW2 setting Display detail The black square W indicates a switch position Explanation for display ON Indoor setting temperature 17 30 Outdoor pipe temperature 2 phase TH6 39 88 39 88 When the temperature is 0C or less and temperature are displayed by turns Outdoor ambient temperature TH7 39 88 39 88 When the temperature is 0C or less and temperature are displayed by turns Outdoor heatsink temperature TH8 40 200 40 200 When the temperature is 0C or less and temperature are displayed by turns When the thermistor d
182. isplayed on the remote controller when AIR DIRECTION or LOUVER button is pressed The air conditioner starts operating even though any buttons on the remote controller are not pressed Check if you set ON OFF timer The air conditioner starts operating at the time designated if ON timer has been set before Check if any operations are ordered by distant control system or the central remote controller While CENTRALLY CONTROLLED INDICATOR is displayed on the remote controller the air conditioner is under the control of external directive There might be a case that CENTRALLY CONTROLLED INDICATOR will not be displayed Check if power is recovered from power failure black out The units will automatically start operating when power is recovered after power failure black out occurs This function is called auto recovery feature from power The air conditioner stops even though any buttons on the remote controller are not pressed OCH527B Check if you set ON OFF timer The air conditioner stops operating at the time designated if OFF timer has been set before Check if any operations are ordered by distant control system or the central remote controller While CENTRALLY CONTROLLED INDICATOR is displayed on the remote controller the air conditioner is under the control of external directive 61 There might be a case that CENTRALLY CONTROLLED
183. ixing screws 5 x 16 then remove the valve bed 5 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel 6 Remove the 4 way valve coil 7 Recover refrigerant 8 Remove the welded part of 4 way valve Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the 4 way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 2 3 4 Removing LEV 1 Remove the service panel See Photo 1 Remove the top panel See Photo 1 Remove the electrical parts box See Photo 4 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 then remove the valve bed 5 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel 6 Remove the LEV coil 7 Recover refrigerant 8 Remove the welded part of LEV Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the LEV cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 2 3 4 OCH527B 2184 4 way valve
184. l loliloli 00 28 1lololiloli 00 29 oliloliloli 00 2A 1 1 of1 o 1 00 2B olo lililoli 00 2C 1lo lililoli 00 2D olilil iloli 00 2E 1lilililoli 00 2F oj oflojo 1 41 00 30 1 o olo 1 1 00 31 olilololili 00 32 111101017171 00 33 olo lilolili 00 34 1lolilolaili 00 35 olililol lili 00 36 1lililolili 00 37 olo lolilili 00 38 1lololilili 00 39 olilolil lili 00 3A 1lilolilili 00 3B olo lililili 00 3C 1lo lililili 00 3D olililil li li 00 3E 1lilililili 00 3F OCH527B 117 Indoor unit Model setting information Request code 162 Data display Lolo See the table on the right Indoor unit Capacity setting information Request code 163 Data display 0 0 See the table on the right Display Model setting state Display Model setting state 00 PSA RP GA PSH PGAH 20 01 21 PKA RP FAL 2 PKH PeFALH 02 PEAD RP EA 2 GA PEHD P EAH 22 PCA RP GA 2 PCH P GAH PLA RP BA PLA RP71 100BA2 03 SEZ KA VA 23 04 24 05 SLZ KA VA L 25 06 PCA RP HA 26 PCA RP KA 07 27 08 28 09 PEA RP400 500GA 29 0A 2A Ob PEA RP200 250GA 2b PKA RP GAL PKH P GALH 0C 2C 0d 2d 0E 2E OF 2F PLA RP AA 10 30 11 PEA RP EA 31 PLH P AAH 12 MEXZ GA VA L 32 13 33 PKA RPsH
185. l be conducted for 2 minutes when power is supplied to the air conditioner PLEASE WAIT will be kept being displayed while that time FILTER is displayed on the screen This indicates that it is time to clean the air filters Clean the air filters Press the FILTER button on the remote controller twice to clear FILTER from the display See the operation manual that came with the product for how to clean the filters Display time of FILTER depends on the model Long life filter 2500 hrs Standard filter 100 hrs STANDBY is displayed on the screen This is displayed when the unit starts HEAT operation when the thermostat puts the compressor in operation mode or when the outdoor unit ends DEFROST operation and returns to HEAT operation The display will automatically disappear around 10 minutes later While STANDBY is displayed on the remote controller the airflow amount will be restricted because the indoor units heat exchanger is not fully heated up In addition to that the up down vane will be automatically set to horizontal blow in order to prevent cold air from directly blowing out to human body The up down vane will return to the setting specified by the remote controller when STANDBY is released DEFROST is displayed on the screen No air comes out of the unit OCH527B The outdoor unit gets frosted when the outside temperature is l
186. l parts box See Photo 5 6 Pull out the lead wire of high pressure switch 7 Recover refrigerant 8 Remove the welded part of high pressure switch Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the back panel Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized 11 Removing the reactor ACL 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Photo 1 4 Remove the back panel See Photo 1 5 Remove 2 reactor fixing screws 4 x 10 and remove the reactor The reactor is attached to the rear of the electrical parts box 129 OCH527B Photo 11 High pressure switch 63H Reactor fixing screw Reactor OPERATING PROCEDURE PHOTOS 12 Removing the compressor MC 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Photo 1 4 Remove the back panel See Photo 1 5 Remove the electrical parts box See Photo 5 6 Remove the thermistor lt Discharge gt TH4 and thermistor lt Comp surface gt TH32 See Photo 8 7 Remove 3 separator fixing screws 4 x 10 and remove the separator 8 Remove the compressor bo
187. lenoid Valve Four Way Valve LILO Connection Terminal lt L Phase gt CN3S Connector lt Connection for Option gt 63H High Pressure Switch NINO Connection Terminal lt N Phase gt CN51 Connector lt Connection for Option gt TH3 TH33 Thermistor lt Outdoor Pipe gt El E2 E3 Connection Terminal lt Ground gt ss Connector lt Connection for Option gt TH4 Thermistor lt Discharge gt 52C 52C Relay CNM Connector lt A Control Service Inspection Kit gt TH6 Thermistor lt Outdoor 2 Phase Pipe gt C B Controller Circuit Board CNMNT Connector TH7 Thermistor lt Outdoor gt SW1 Switch lt Forced Defrost Defect History lt Connected to Optional M NET Adapter Board gt TH8 Thermistor lt Heat Sink gt Record Reset Refrigerant Address gt CNVMNT Connector TH32 Thermistor lt Comp surface gt SW4 Switch lt Test Operation gt lt Connected to Optional M NET Adapter Board gt LEV A LEV B Electronic Expansion Valve SW5 Switch lt Function Switch gt CNDM Connector ACL Reactor SW6 Switch lt Model Select gt lt Connected for Option Contact Input gt CY1 CY2 Capacitor SW7 Switch lt Function Setup gt X51 X52 Relay P B Power Circuit Board Sw8 Switch lt Function Setup gt TABR S Connection Terminal lt L N Phase gt SWI Switch TABU V W Connection Terminal lt U V W Phase gt LED1 LED2 LED IPM Power Module lt Operation Inspection Indicators gt When M NET adapter is connected Z lt A 63H LEVA LEVB TH33 TH32 TH7 TH6 TH3 TH4 3 15 B u hi 5
188. lume check Refrigerant leak check gt Smooth maintenance Request code Service menu m OOL Set each item Select the item to be changed with the F1 or F2 button Select the required setting with the F3 or F4 button m lt Ref address gt setting 0 15 m lt Stable mode gt setting Cool Heat Normal Press the button Fixed operation will start Stable mode will take approx 20 minutes Smooth maintenance b Ref address E Stable mode TN Heat Normal Begin V v Smooth maintenance Ref address E Stable mode EIN Heat Normal Stabilization Collecting Exit 0 The operation data will appear The Compressor Accumulated operating COMP run time is 10 hour unit and the Compressor Number of operation times COMP On Off is a 100 time unit fractions discarded Navigating through the screens To go back to the Main menu button To return to the previous screen OCH527B 119 Smooth maintenance 1 3 Ref address Cool COMP current 12A COMP run time 1888 Hr COMP On Off 2888 times COMP frequency 88 Hz Return 9 Smooth maintenance _ 2 3 Ref address B Cool Sub cool 3 OU TH4 temp 60 C OU TH6 temp 38 C OU TH7 temp 38 C Return 9 vw Page A Smooth maintenance 3 3 Ref address B Cool
189. lz 2 3 5 x 9498 2 N F 2 a 2 CNAC1 Q CNCT CNAC2 he WHT 1 f3 RED 1 2 1 3 REp ACLI TBI TOMA RED Li LO1 RED o Li2 Lo2 Acie POWER SUPPLY WHT WH rm 3N Ls ing ACL3 400V 50Hz BLK BLK rv NI O wah pop i I NO gu GRN YLW GD1 x x z E ACL4 a 2 s E AN m m L Si M NET ADAPTER TB7 Terminal Block lt M NET connection gt CN5 Connector lt Transmission gt CND Connector lt Power Supply gt CN2M Connector lt M NET communication gt OCH527B 19 PUHZ ZRP100YKAR1 PUHZ ZRP125YKAR1 PUHZ ZRP140YKAR1
190. mal if 0 receiving is detected 30 times continuously though outdoor con troller circuit board has transmitted 1 Abnormal if outdoor controller circuit board could not find blank of transmission path for 3 minutes O Indoor outdoor unit connecting wire has contact failure Defective communication circuit of outdoor controller circuit board Noise has entered power supply Noise has entered indoor out door unit connecting wire Check disconnection or looseness of indoor outdoor unit connecting wire Turn the power off and on again to check Replace outdoor controller circuit board if abnormality is displayed again Non defined error code This code is displayed when non defined error code is received Noise has entered transmission wire of remote controller Noise has entered indoor out door unit connecting wire Outdoor unit is not a series of power inverter Model name of remote control ler is PAR S25A Turn the power off and on again to check Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again Replace outdoor unit with power inverter type outdoor unit Replace remote controller with MA remote controller Serial communication error Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defec tive Abnormal if communication between outdoor
191. ming the following modification operation noise of the outdoor unit can be reduced by about 3 4 dB The low noise mode will be activated when a commercially available timer or the contact input of an ON OFF switch is added to the CNDM connector option on the control board of the outdoor unit lt The ability varies according to the outdoor temperature and conditions etc Q Complete the circuit as shown when using the external input adapter PAC SC36NA E Option SWT7 1 Outdoor unit control board OFF SW1 ON Low noise mode SW1 OFF Normal operation PAC SC36NA E a AN Lam Ahh AA eae kag ai Circuit diagram example X Relay ae ba bd pp oane i low noise mode Outdoor unit control board i Koan a LA a Bitty On site arrangement Max 10m i Swi Bedo i External input adapter Power supply for relay i i i i l j Eh b On demand control Local wiring By performing the following modification energy consumption can be reduced to 0 100 of the normal consumption The demand function will be activated when a commercially available timer or the contact input of an ON OFF switch is added to the CNDM connector option on the control board of the outdoor unit Q Complete the circuit as shown when using the external input adapter PAC SC36NA E Option By setting SW7 1 on the control board of the outdoor unit the energy consumption compared to the normal consumption can be limited as s
192. n Service menu 1 2 Test run Input maintenance info Function setting gt Check Self check Main menu 5 Ld Jemjam Fl Fe F3 F4 Select Error history with the F1 or F2 button and press the button Check menu 1 1 gt Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Request code Service menu Error history Select Error history from the Check menu and press the button to view up to 16 error history records Four records are shown per page and the top record on the first page indicates the latest error record Error history 1 4 Error Unt dd mm yy E 8 1 12 84 88 12 34 E 8 1 12 84 88 12 34 E0 8 1 12 84 88 12 34 E 8 1 12 84 88 12 34 Check menu 9 Lv Page Jaman Fl Fe F3 F4 Deleting the error history To delete the error history press the F4 button Delete on the screen that shows error history A confirmation screen will appear asking if you want to delete the error history d Press the F4 button OK to delete the history Error history deleted will appear on the screen Press the o button to go back to the Check menu screen OCH527B 32 Error history Delete error history Error history Error history deleted Check menu 11 2 3 Test run for wir
193. n Outdoor Stop valve I Thermistor TH6 Outdoor 2 phase pipe with service port Refrigerant GAS pipe K connection 415 88 5 8 Strainer gt Charge lug 50 High pressure Thermistor TH3 Outdoor pipe Charge plug Low pressure lt High pressure Distributor switch 63H as Thermistor TH4 Discharge Strainer 100 Thermistor TH32 Thermistor TH33 Comp surface Lah pipe Linear Strainer Compressor Power 100 receiver expansion valve B Stop valve with service port Linear expansion valve A Refrigerant LIQUID pipe connection Z9 52 3 8 Strainer 100 Strainer 100 Refrigerant flow in cooling Refrigerant flow in heating OCH527B 26 PUHZ ZRP100VKA PUHZ ZRP125VKA Unit mm inch PUHZ ZRP100YKA PUHZ ZRP125YKA PUHZ ZRP100YKAR1 PUHZ ZRP125YKAR1 Thermistor TH7 Heat exchanger n Outdoor Thermistor TH6 Ball valve Strainer Refrigerant GAS pipe connection 5 8 lt q Charge plug p Ch Thermistor TH3 High pressure wi Outdoor pipe Charge plug lt K Low pressure istri w p High pressure D Distributor switch 63H Strainer S une TH4 Discharge Strainer 100 Thermistor TH32 Thermistor TH33 Comp surface ee pipe Linear Strainer 100 expansion valve B Compressor receiver Stop valve with se
194. n wire of indoor unit or FRESH MASTER Disconnection of transmission connector CN2M of indoor unit or FRESH MASTER Defective transmitting receiving circuit of indoor unit or FRESH MASTER 6 If displayed address or attribute is LOSSNAY indoor unit detects abnormal ity when indoor unit transmits signal to LOSSNAY and there was no reply ACK If the power supply of LOSSNAY is off indoor unit detects abnormality when it transmits signal to LOSSNAY During sequential operation of indoor unit and LOSSNAY of other refrigerant system if indoor unit transmits signal to LOSSNAY while outdoor unit power supply of same refrig erant system with LOSSNAY is turned off or within 2 min utes of restart abnormality is detected Contact failure of transmis sion wire of indoor unit of LOSSNAY Disconnection of transmission connector CN2M of indoor unit Defective transmitting receiv ing circuit of indoor unit or LOSSNAY 7 If displayed address or attribute is non existent OCH527B The unit of former address does not exist as address switch has changed while the unit was energized Abnormality is detected when indoor unit transmits signal because the address of FRESH MASTER and LOSSNAY are changed after sequential operation of FRESH MASTER and LOSSNAY by remote controller 52 Same as mentioned in A7 of the previous page Error Code Abnormal points and det
195. n Request Code 77 Outdoor unit SW5 setting information Refer to 13 1 2 Detail Contents in Request Code 78 Outdoor unit SW6 setting information Refer to 13 1 2 Detail Contents in Request Code 79 Outdoor unit SW7 setting information Refer to 13 1 2 Detail Contentsin Request Code _ 80 Outdoor unit SW8 setting information Refer to 13 1 2 Detail Contentsin Request Code _ 81 Outdoor unit SW9 setting information Refer to 13 1 2 Detail Contentsin Request Code _ 82 Outdoor unit SW10 setting information Refer to 13 1 2 Detail Contentsin Request Code _ 83 84 M NET adapter connection presence absence ane eet _ 85 86 87 88 89 Display of execution of replace wash operation ae ee _ 90 Outdoor unit Microprocessor version information Examples Ver 5 01 0501 Ver Auxiliary information displayed after 91 Outdoorunit Microprocessor version information sub No version information _ Examples Ver 5 01 A000 A000 92 93 94 95 96 97 98 99 Z 7 Displays postponement code is 100 Outdoor unit Error postponement history 1 latest Code displayed if no postponement code is present s i Displays postponement code is 101 Outdoor unit Error postponement history 2 previous A Code displayed if no postponement code is present Displays postponement code is 102 Outdoor unit Error postponement history 3 last but one Code displayed if no postponement code is present
196. n data will appear TET Add Cond Add Cond The following value is the reference for the refrigerant volume check If the refrig B OK 4 OK erant is leaking NG will appear K NG 3 NG Ja The refrigerant volume check reference value can be changed with the func Check menu 9 tion selection Default value RP71 80 RP50 70 lt Resetting the initial learning data gt If the unit has been relocated or if refrigerant has been additionally charged the initial learning data must be reset and learn ing performed again How to reset the data 1 Turn the main power OFF 2 Attach the short circuit pin for the emergency operation connector CN31 on the outdoor controller board to the ON side 3 Turn ON the test run switch SW4 1 on the outdoor controller board 4 The data will be reset when the main power is turned ON 5 Turn the main power OFF 6 Turn OFF the test run switch SW4 1 7 Return the short circuit pin for the emergency operation connector CN31 to the OFF side Under the following conditions it may not be possible to carry out stable operation or accurately detect refrigerant leaks lt When the outdoor intake temperature is 40 C or higher or when the indoor intake temperature is 23 C or less When the indoor fan speed is not set to strong OCH527B 123 14 2 2 PAR 21MAA m Remote controller button position sa MI
197. n motor Short cycle of outdoor unit Dirt of outdoor heat exchanger Decreased airflow caused by defective inspection of outside temperature thermistor It detects lower temperature than actual temperature Disconnection or contact failure of connector 63H on outdoor controller board Disconnection or contact failure of 63H connection Defective outdoor controller board Defective action of linear expansion valve Malfunction of fan driving circuit Check indoor unit and repair defect Check if stop valve is fully open Check piping and repair defect Check outdoor unit and repair defect Check the detected temperature of outside temperature thermistor on LED display SW2 on A Control Service Tool Refer to 11 10 Turn the power off and check F5 is displayed when the power is turned again When F5 is displayed refer to Judgment and action for F5 Check linear expansion valve Refer to 11 6 Replace outdoor controller board U2 TH4 1102 TH32 1132 High discharging temperature High comp surface temperature 1 Abnormal if discharge temperature thermistor TH4 exceeds 125 C or 110 C continuously for 5 minutes Abnormal if condenser evaporator temperature thermistor TH5 exceeds 40 C during defrosting and discharge temperature thermistor TH4 exceeds 110 C 2 Abnormal if discharge superheat Cooling TH4 TH5 Heating TH4 TH6
198. n outdoor controller circuit board Disconnection or contact failure of 63H 63H is working due to defective parts Defective outdoor controller circuit board 41 Check connection of 63H connector on outdoor controller circuit board Refer to 11 9 Check the 63H side of connecting wire Check continuity by tester Replace the parts if the parts are defective Replace outdoor controller circuit board Error Code Abnormal points and detection method Case Judgment and action Miswiring of indoor outdoor unit connecting wire 1 Outdoor controller circuit board can automatically check the number of connected indoor units Abnormal if the number cannot be checked automatically due to miswiring of indoor outdoor unit connecting wire and etc after power is turned on for 4 minutes Abnormal if outdoor controller circuit board recognizes excessive number of indoor units Contact failure or miswiring of indoor outdoor unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of specified capacity Excessive number of indoor units are connected to 1 out door unit 4 units or more Defective transmitting receiving circuit of outdoor controller circuit board Defective transmitting receiving circuit of indoor controller board Defective indoor power board 2 or more outdoor units have refrigerant address O In case of group co
199. n though linear expansion valve has minimum open pulse after compressor starts operating for 10 minutes Disconnection or loose connection of discharge temperature thermistor TH4 Defective holder of discharge temperature thermistor Disconnection or loose connection of linear expansion valve s coil Disconnection or loose connection of linear expansion valve s connector Defective linear expansion valve Check the installation conditions of discharge temperature thermistor TH4 Check the coil of linear expansion valve Refer to 11 7 Check the connection or contact of LEV A and LEV B on outdoor controller circuit board Check linear expansion valve Refer to 11 6 Outdoor fan motor Abnormal if rotational frequency of the fan motor is not detected during DC fan motor operation Fan motor rotational frequency is abnormal if 100 rpm or below detected continuously for 15 seconds at 20 C or more outside air temperature 50 rpm or below or 1500 rpm or more detected continuously for 1 minute OCH527B Failure in the operation of the DC fan motor Failure in the outdoor circuit controller board 44 Check or replace the DC fan motor Check the voltage of the outdoor circuit controller board during operation Replace the outdoor circuit controller board when the failure is still indicated even after performing the action above Error C
200. n to the service Do not pull out the connector CNF1 2 for the motor with the power supply on It causes trouble of the outdoor controller circuit board and fan motor Self check Symptom The outdoor fan cannot turn around Fuse check Check the fuse F5 on outdoor controller board Did the fuse blow 4 No Wiring contact check Contact of fan motor connector CNF1 2 Replace outdoor controller board C B ki c fan motor MF1 2 v 4 Is there contact failure gt Yes gt 4 No Power supply check Remove the connector CNF1 2 Measure the voltage in the outdoor controller circuit board TEST POINT Voc between 1 and 4 of the fan connector Voc DC250 330V TEST POINT Vcc between 5 and 4 of the fan connector Vec DC15V v Is the voltage normal gt Yes gt Replace the fan motor No Yes OK Check the operation of fan END Replace outdoor controller board JL NG C Replace outdoor controller board 7 OK Check the operation END 4 NG C Replace the fan motor b OCH527B 64 11 7 HOW TO CHECK THE COMPONENTS lt Thermistor feature chart gt Low temperature thermistors e Thermistor lt Outdoor pipe gt TH3 e Thermistor lt Outdoor 2 phase pipe gt TH6 Thermistor lt Outdoor gt TH7 e Thermistor lt Outdoor pipe gt
201. nd vibration None Present e Air intake air temperature COOL HEAT 8 Air discharge temperature COOL C HEAT 2 Refrigerant heat exchanger temperature COOL C HEAT c s Filter operating time Time 5 5 Decorative panel Good Cleaning reguired g 8 Filter Good Cleaning required Fan Good Cleaning required Heat exchanger Good Cleaning required Sound vibration None Present The filter operating time is the time that has elapsed since the filter was reset Judgement coat Heat Check item Normal Normal operation state Filter inspection Filter may be clogged 1 Inspection A Performance has dropped Detailed in spection is necessary Inspection B Refrigerant amount is dropping Inspection C Filter or indoor heat exchanger may be clogged The above judgement is just guide based on Japanese standard conditions It may be changed depending on the indoor and outdoor temperature 1 It may be judged as Filter inspection due to the outdoor and indoor temperature even though it is not clogged OCH527B Enter the temperature differences between and into the graph given below Operation state is determined according to the plotted areas on the graph For data measurements set the fan speed to Hi before activat ing maintenance mode Result Classification Inspection Is D000 displayed st
202. nnector lt Connection for Switch Board gt C B Controller Circuit Board S B Switch Board LD U Lead Wire lt U Phase gt SW1 Switch lt Forced Defrost Defect History LD V Lead Wire lt V Phase gt Record Reset Refrigerant Address gt LD W Lead Wire lt W Phase gt SWA Switch lt Test Operation gt LD LI Lead Wire lt L Phase gt SW5 Switch lt Function Switch gt LD NI Lead Wire lt N Phase gt SW6 Switch lt Model Select gt LD R0 S0 LD RL Lead Wire lt L Phase Reactor gt SW7 Switch lt Function Setup gt D 1 LD S2 LD 3 Lead Wire lt Indoor Outdoor gt SW8 Switch lt Function Setup gt LD EI LD 2 LD E3 Lead Wire lt Ground gt SWP Switch lt Pump Down gt DS1 DS2 Diode Bridge CN31 Connector lt Emergency Operation gt IPM Power Module CNM Connector lt A Control Service Inspection Kit gt Q1 IGBT CNSW Connector lt Connector for Controller Board gt CB1 CB2 Main Smoothing Capacitor 1 MODEL SELECT The black square W indicates a switch position MODEL SWw6 SW5 6 2 ON N 35V OFF Ae kk OFF 12345678 123456 sov ore HNH HN or A 12345678 123456 2 SW5 1 to 5 Function Switch 63H 2184 cay TH33 TH32 TH7 TH6 TH3 TH4 When M NET adapter is connected LEV A LEV B
203. ntrol Noise has entered into power supply or indoor outdoor unit connecting wire Miswiring of indoor outdoor unit connecting wire converse wiring or disconnection Outdoor controller circuit board can automatically set the unit number of indoor units Abnormal if the indoor unit number can not be set within 4 minutes after power on because of Miswiring converse wiring or disconnection of indoor outdoor unit connecting wire Contact failure or miswiring of indoor outdoor unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of specified capacity Defective transmitting receiving circuit of outdoor controller circuit board Defective transmitting receiving circuit of indoor controller board Defective indoor power board 2 or more outdoor units have refrigerant address 0 In case of group control Noise has entered into power supply or indoor outdoor unit connecting wire Start up time over The unit cannot finish start up process within 4 minutes after power on OCH527B Contact failure of indoor outdoor unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of specified capacity 2 or more outdoor units have refrigerant address 0 In case of group control Noise has entered into power supply or indoor outdoor unit connecting wire 42 Check disconnection or looseness or polarity
204. o not use the wireless remote controller for 30 seconds after completing the function setting OCH527B 101 12 2 FUNCTION SELECTION OF REMOTE CONTROLLER 12 2 1 PAR 30MAA PAR 31MAA wa MITSUBISHI ELECTRIC a Na 6 san Function buttons eee E F1 F2 F3 F4 The functions of the function buttons change depending on the screen Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen When the system is centrally controlled the button function guide that corresponds to the locked button will not appear lt Main display gt lt Main menu gt 14 38 Fri Main Main menu 1 3 gt Vane Louver Vent Lossnay High power Room 28 oa Cool Set temp Auto Weekly timer OU silent mode x E IRo se Function guide 4 ON OFF button 6 ON OFF lamp Press to turn ON OFF the indoor unit This lamp lights up in green while the unit is in operation It blinks while the remote controller is starting up or when SELECT button there is an error Press to save the setting 3 RETURN button Press to return to the previous screen 4 MENU button Press to bring up the Main menu 6 Backlit LCD Operation settings will appear When the backlight is off pressing any button
205. o select the desired language selection Service Test run Select Test run from the Service menu to bring up the Test run menu e Test run Drain pump test run Input Select Input maintenance Info from the Service menu to bring up the Maintenance information maintenance screen The following settings can be made from the Maintenance Information screen Model name input Serial No input Dealer information input Function Make the settings for the indoor unit functions via the remote controller as necessary setting LOSSNAY This setting is required only when the operation of City Multi units is interlocked with LOSSNAY setting units City Multi only Check Error history Display the error history and execute delete error history Refrigerant leak check Refrigerant leaks can be judged Smooth maintenance The indoor and outdoor maintenance data can be displayed Request cord Details of the operation data including each thermistor temperature and error his tory can be checked Self check Error history of each unit can be checked via the remote controller Maintenance Take the following steps to change the maintenance password password Remote When the remote controller does not work properly use the remote controller checking function controller to troubleshoot the problem check OCH527B 105 12 2 2 PAR 21MAA Setting language English Change Language Function sele
206. ode Abnormal point and detection method Case Judgment and action Detailed codes Refer to 11 10 To find out the detail history latest about U9 error turn ON SW2 1 2 2 and 2 6 Overvoltage error e Increase in DC bus voltage to ZRP35 50VKA 400V ZRP60 71VHA 420V ZRP100 140VKA 400V ZRP100 140YKA 760V Abnormal increase in power source voltage Disconnection of compressor wiring Defective outdoor power circuit board Compressor has a ground fault Check the field facility for the power supply Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Replace outdoor power circuit board Check compressor for electrical insula tion Replace compressor Undervoltage error e Instantaneous decrease in DC bus voltage to ZRP35 140V 200V ZRP100 140Y 350V Decrease in power source voltage instantaneous stop Disconnection or loose connection of CN52C on the outdoor power circuit board controller circuit board ZRP VKA Defective converter drive circuit in outdoor power circuit board ZRP VKA Defective 52C drive circuit in outdoor power circuit board Defective outdoor converter circuit board ZRP YKA Disconnection or loose connection of rush current protect resistor RS ZRP YKA Defective rush current protect resistor RS ZRP YKA Disconnection or loose connection of main smoothing capacitor CB ZRP100 140VKA
207. ode DS2 OCH527B Thermistor lt Outdoor 2 phase pipe gt TH32 Thermistor lt Comp surface gt TH33 Thermistor lt Outdoor pipe gt CNF1 Connect to the fan motor 250 330V DC 15V DC 0 6 5V DC 15V DC When stopped 7 5V DC When operated OV 15V pulse Vsp Voltage between pins of C5A C5B DC OV when stopped DC 1 6 5V when operated 63H High pressure switch TE ee m Connect to compressor U V W Voltage among phases 5 180V Outdoor controller circuit board PUHZ ZRP60 71VHA PUHZ ZRP100 125 140YKA PUHZ ZRP100 125 140YKAR1 CN51 External signal output Compressor operating signal Abnormal signal SWI Forced defrost detect history record reset refrigerant address CNDM SW7 to Input of low level sound priority mode Demand control setting to Input of external contact point SW6 22 I CN52C Model select NG E ij vezi ses eza Connect to the noise SW4 oj esL enc filter circuit board akh one oe alr mie 17 te f of di Test operation er aa Aoi CN52C ZRP60 71V SWP Pump down gt A lt x C s s lt i LEV C SW5 a PA HER I daan agaran yan E SW8 ee a rook PP ane Pipe replace o wami 5 lg balad Jang deo YG Wiring replace si k 15 CNM C
208. of indoor outdoor unit connecting wire of indoor and outdoor units Check diameter and length of indoor outdoor unit connecting wire Total wiring length 80 m including wiring connecting each indoor unit and between indoor and outdoor unit Also check if the connection order of flat cable is S1 S2 S3 Check the number of indoor units that are connected to one outdoor unit If EA is detected Turn the power off once and on again to check Replace outdoor controller circuit board indoor controller board or indoor power board if abnormality occurs again Check if refrigerant addresses SW1 3 to SW1 6 on outdoor controller circuit board are overlapping in case of group control system Check transmission path and remove the cause The descriptions above are for EA Eb and EC lt Abnormalities detected while unit is operating gt Error Code Abnormal points and detection method Case Judgment and action High pressure High pressure switch 63H operated Abnormal if high pressure switch 63H 4 15MPa operated during compressor operation Short cycle of indoor unit Clogged filter of indoor unit Decreased airflow caused by dirt of indoor fan Dirt of indoor heat exchanger Locked indoor fan motor Malfunction of indoor fan motor Defective operation of stop valve Not full open Clogged or broken pipe Locked outdoor fan motor Malfunction of outdoor fa
209. of linear expansion valve ZRP100 ZRP140 lt Composition gt Linear expansion valve is separable into the main body and the coil as shown in the diagram below Stopper Main body Coil Lead wire lt How to detach the coil gt Hold the lower part of the main body shown as A firmly so that the main body does not move and detach the coil by pulling it upward Be sure to detach the coil holding main body firmly Otherwise pipes can bend due to pressure lt How to attach the coil gt Hold the lower part of the main body shown as A firmly so that the main body does not move and attach the coil by inserting it downward into the main body Then securely attach the coil stop per to main body At this time be careful that stress is not added to lead wire and main body is not wound by lead wire If the stopper is not firmly attached to main body coil may be detached from the main body and that can cause defective operation of lin ear expansion valve To prevent piping stress be sure to attach the coil holding the main body of linear expansion valve firmly Otherwise pipe may break OCH527B 69 11 8 EMERGENCY OPERATION 1 When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor unit has a failure but no other problems are found emergency operation will be available by setting the emergency opera tion switch SWE on indoor controller bo
210. ol Fan step correction value by cool condensation temperature overheat prevention control Display Correction value ins 1 0 0 1 1 2 2 Actuator output state Request code 54 Data display 9 0 x Actuator output state Actuator output state Actuator output state D Actuator output state Display SV1 Four way valve Compressor Compressor gt Display 52C SV2 SS warming up 0 0 1 ON 1 ON 2 ON 2 ON 3 ON ON 3 ON ON 4 ON 4 ON 5 ON ON 5 ON ON 6 ON ON 6 ON ON 7 ON ON ON 7 ON ON ON 8 ON 9 ON ON A ON ON b ON ON ON C ON ON d ON ON ON E ON ON ON F ON ON ON ON Error content U9 Request code 55 Data display olo Error content Error content Error content Detected Error content 6 Detected Display Overvoltage Undervoltage Li phase Power synchronizing Display Converter Fo PAM error error error open error signal error error 0 0 1 e 1 e 2 2 e 3 e e 3 e e 4 e 5 e e 6 e e 7 e e e 8 e 9 e e A e b e e e C e e d e ee E e e e F e e e e OCH527B 115 Contact demand capacity Request code 61 Data display 0 0 0 External input state Request co
211. on Cool mode This request code is not provided to collect data It is used to fix the operation state 767 Stable operation cancellation This request code is not provided to collect data It is used to cancel the operation state that has been fixed by request codes 765 and 766 OCH527B 113 13 2 1 Detail Contents in Request Code Operation state Request code 0 Data display C 4 Operation mode Operation mode Display Operation mode 0 STOP FAN C COOL DRY H HEAT d DEFROST Relay output state Relay output state Example Request code 004 Discharge temperature 69 C Refrigerant address 00 A Maintenance mode display B Refrigerant address C Data display area D Request code display area Indoor unit Control state Request code 50 Data display K x Unit No 4 state Unit No 3 state Unit No 2 state Unit No 1 state Outdoor unit Control state Request code 51 Data display State 0 0 0 O Normal 0 O O 1 Preparing forheat operation 0 O O 2 Defrost Compressor Frequency control state Request code 52 Data display 0 0
212. ont Reactor box fixing screw front OCH527B 145 OPERATING PROCEDURE PHOTOS 13 Removing the compressor MC 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 1 4 Remove 4 back cover panel fixing screws 5 x 12 and remove the back cover panel 5 Remove the electrical parts box See Photo 4 and stop valve fixing screws 5 x 16 and then remove the valve bed 7 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and then remove the right side panel 8 Remove 3 separator fixing screws 4 x 10 and remove the separator 9 Recover refrigerant spanner or a adjustable wrench 11 Remove the welded pipe of compressor inlet and outlet and then remove the compressor Note Recover refrigerant without spreading it in the air 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve 10 Remove the 3 points of the compressor fixing nut using a Photo 18 Valve bed Valve bed fixing screws Power receiver Separator fixing screw Compressor fixing nut 14 Removing the power receiver 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 1 4 Remove 4 back cover panel fixing screws 5 x 12
213. or lt Discharge gt TH4 from the sensor holder TH33 See Photo 9 or Figure 1 Removing the thermistor lt Comp surface gt TH32 5 Remove the sound proof cover upper for compressor 6 Pull out the thermistor lt Comp surface gt TH32 from the holder of the compressor shell Photo 8 Thermistor Sound proof cover lt Comp surface gt TH32 Photo 7 AN Compressor Thermistor lt Outdoor pipe gt TH3 lt Discharge gt TH4 OCH527B 137 OPERATING PROCEDURE ILLUSTRATIONS 7 Removing the 4 way valve coil 21S4 and LEV coil Figure 1 PUHZ ZRP100 125VKA LEV A LEV B LEV C 140 only 4 way valve 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 Removing the 4 way valve coil 3 Remove 4 way valve coil fixing screw M4 x 6 4 Remove the 4 way valve coil by sliding the coil toward you 5 Disconnect the connector 21S4 green on the controller circuit board in the electrical parts box Removing the LEV coil 3 Remove the LEV coil by sliding the coil upward 4 Disconnect the connectors LEV A white and LEV B red LEV C blue on the controller circuit board in the electrical parts box Removing the 4 way valve 1 Remove the service panel See Photo 1 Remove the top panel See Photo 1 Remove the electrical parts box See Photo 4 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve f
214. or shell Photo 14 Thermistor lt Comp surface gt TH32 Sound proof cover Photo 13 Thermistor lt Outdoor pipe gt TH3 AN Compressor lt Discharge gt TH4 OCH527B 143 OPERATING PROCEDURE PHOTOS amp ILLUSTRATIONS 8 Removing the 4 way valve coil 21S4 and LEV coil LEV A LEV B LEV C 140 only 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 Removing the 4 way valve coil 3 Remove 4 way valve coil fixing screw M4 x 6 4 Remove the 4 way valve coil by sliding the coil toward you 5 Disconnect the connector 21S4 green on the controller circuit board in the electrical parts box Removing the LEV coil 3 Remove the LEV coil by sliding the coil upward 4 Disconnect the connectors LEV A white and LEV B red LEV C blue on the controller circuit board in the electrical parts box 9 Removing the 4 way valve 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 then remove the valve bed 4 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel Remove the 4 way valve coil See Photo 15 Recover refrigerant Remove the welded part of 4 way valve Note 1 Recover refrigerant without spreading it in the air Note 2 Th
215. or uhi M NET type outdoor unit M NET type outdoor unit AN Wal Ns M NET transmission wire If there are more than 2 earthing spots on the shield wire noise may enter into the shield wire because the earth wire and shield wire form 1 circuit and the electric potential difference occurs due to the impedance difference among earthing spots In case of single spot earthing noise does not enter into the shield wire because the earth wire and shield wire do not form 1 circuit To avoid communication errors caused by noise make sure to observe the single spot earthing method described in the installation manual OCH527B 24 e M NET wiring 1 Use 2 core x 1 25mm shield wire for electric wires Excluding the case connecting to system controller 2 Connect the wire to the M NET terminal block Connect one core of the transmission wire non polar to A terminal and the other to B Peel the shield wire twist the shield part to a string and connect it to S terminal 3 In the system which several outdoor units are being connected the terminal A B S on M NET terminal block should be individually wired to the other outdoor unit s M NET d A terminal block q IO Earth allalla wire Al Bl TO D Transmission Shield wire part terminal i e Ato A B to B and S to S In this case choose one of those outdoor units and drive a s
216. ore than 10 hours Neglecting this could result in freezing the heat exchanger in indoor unit 3 Emergency operation procedure Turn the main power supply off Turn on the emergency operation switch SWE on indoor controller board Set the shorting pins of emergency operation connector CN31 on outdoor controller board to ON Use SW4 2 on outdoor controller board to set the operation mode cooling or heating SW4 1 is not used SW4 CN31 ON Heating ON O Shorting pins 1 2 Cooling OFF Turning the main power supply on will start the emergency operation 4 Releasing emergency operation Turn the main power supply off SW4 Set the emergency operation switch SWE on indoor controller board to OFF ON Heating Set the shorting pins of emergency operation connector CN31 on outdoor controller board to OFF Set SW4 2 on outdoor controller board as shown in the right 1 2 Cooling If shorting pins are not set on emergency operation connector CN31 the setting remains OFF OCH527B 70 5 Operation data during emergency operation During emergency operation no communication is performed with the indoor unit so the data items needed for operation are set to the following values Operation data Operation mode COOL HEAT Remarks Intake temperature TH1 27C 20 5 C Indoor pipe temperature TH2 5C 45C Indoor 2 phase pipe temperatu
217. ormal operation of 4 way valve Disconnection of or leakage in refrigerant pipes Air into refrigerant piping Abnormal operation no rotation of indoor fan Defective fan motor Defective indoor control board Defective refrigerant circuit clogging When this error occurs be sure to replace the 4 way valve Check refrigerant pipes for disconnection or leakage After the recovery of refrigerant vacuum dry the whole refrigerant circuit Refer to section 11 6 Check refrigerant circuit for operation To avoid entry of moisture or air into refrigerant circuit which could cause abnormal high pressure purge air in refrigerant circuit or replace refrigerant Note Indoor unit in the text indicates M NET board in outdoor unit Case Judgment and action Address duplicate definition This error is displayed when transmission Note The address and attribute displayed at remote controller indicate the controller that detected abnormality from the units of same address is detected There are 2 or more same address of controller of outdoor unit indoor unit FRESH MASTER or LOSSNAY Noise has entered into transmission signal and signal was transformed Search the unit with same address as abnormality occurred If the same address is found shut the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more after the a
218. oud yog uong esu ou 2 0 K K foe in wo iyo oO IO gt oo GO iO UIAOW JO ales f tz y lul 11y 2 i Wu aloy uep z ayelul wif 8r G v0v luo UONDAJIP 1e 1 y WO aPeW ag ued uoll99uuo2 Buum pue Buldid EA NOlIYO ra lt yBiay jog uolyepuno4 gt ON cae 84 uey sse Ajjeo0 paseyoind ag ysnw nu pue siaysem syog slloq 0 LIN UOREpUNOJ YIM Ajwuy yun ay ino s se q NOILOAYIG DNIHIM DNIdid 1104 NOILVGNNO4 apis 131 pue y yu y ul uado aq pinoys s pis z yun aul jo sapis Ya PUe JUBL pue Iga ay uo p vejd s ajoe sqo ou se Buo se sow 10 UuLu00 u do Ajj eo1seg ajdwexe S seq yun 1oop no aul punouie adeds aa14 13 OCH527B mm ee 9 lou ulesq Uni Inoyoouy lou Buidid wonog 4ano9 Buidid se8y 13409 Buldid juol4 18 612 Z9 Bulaow 10 lpueH Ig8ued JMS Buum 1oopino ioopul 1uBlH Buum Ajddns samo 497 SUOI OOUUOD RulWYA JEUIWUS YES 056 abieyosiq diy OLW 110g uopepunoy S lou BAO 9E x ZL Z ely
219. ow and the humidity is high DEFROST indicates the DEFROST operation is being performed to melt this frost The DEFROST operation ends in around 10 minutes at most 15 minutes During the DEFROST operation the indoor unit s heat exchanger becomes cold so the fan is stopped The up down vane will be automatically set to horizontal blow in order to prevent cold air from directly blowing out to human body The display will turn into STANDBY when DEFROST operation ends 59 Phone Calls From Customers How to Respond The room cannot be cooled or heated sufficiently Check the set temperature of remote controller The outdoor unit cannot be operated if the set temperature is not appropriate The outdoor unit operates in the following modes COOL When the set temperature is lower than the room temperature HEAT When the set temperature is higher than the room temperature Check if filters are not dirty and clogged If filters are clogged the airflow amount will be reduced and the unit capacity will be lowered See the instruction manual that came with the product for how to clean the filters Check there is enough space around the air conditioner If there are any obstacles in the air intake or air outlet of indoor outdoor units they block the airflow direction so that the unit capacity will be lowered Sound comes out from the air conditioner A gas escaping sound is
220. play Thermostat ON time 0 999 0 999 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When 245 minutes 0 5 secs 0 5secs 2 secs 12 gt 45 gt Test run elapsed time 0 120 OCH527B 0 120 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When 105 minutes 0 5 secs 0 5secs 2 secs 1 gt 05 gt t J 88 Minute SW2 setting Display detail The black square MM indicates a switch position Explanation for display The number of connected indoor units 0 4 The number of connected indoor units are dis played Capacity setting display Displayed as an outdoor capacity code Capacity Capacity ZRP35V ZRP100V 100Y ZRP50V ZRP125V 125Y ZRP60V ZRP140V 140Y ZRP71V Code display Outdoor unit setting information e The tens digit Total display for applied setting Setting details Display details H P Cooling only 0 H P 1 Cooling only Single phase 3 phase O Single phase 2 3 phase lt The ones digit Setting details Display details Defrosting switch 0 Normal 1 For high humidity Example When heat pump 3 phase and defrosting normal are set up 20 is d
221. r board of outdoor unit may be defective repeater circuit Replace multi controller board one by one to check if the unit returns normally Continued to the next page From the previous page Error Code Abnormal points and detection method Case Judgment and action 4 If displayed address or attribute is remote controller indoor unit detects abnormality when indoor unit transmits signal to remote controller and there was no reply ACK During group operation with indoor unit of multi refrigerant system if indoor unit transmit signal to remote controller while outdoor unit power sup ply of one refrigerant system is turned off or within 2 min utes of restart abnormality is detected Contact failure of transmission wire of remote controller or indoor unit Disconnection of transmission connector CN2M of indoor unit Defective transmitting receiving circuit of indoor unit or remote controller If displayed address or attribute is FRESH MASTER indoor unit detects abnormality when indoor unit transmits signal to FRESH MASTER and there was no reply ACK During sequential operation of indoor unit and FRESH MASTER of other refrigerant system if indoor unit transmits signal to FRESH MASTER while outdoor unit power sup ply of same refrigerant sys tem with FRESH MASTER is turned off or within 2 minutes of restart abnormality is detected Contact failure of transmissio
222. r than that of R22 their sizes of flared sections and flare nuts are different Thickness of pipes Because the working pressure of R410A is higher compared to R22 be sure to use refrigerant piping with thickness shown below Never use pipes of 0 7 mm or below Diagram below Piping diameter and thickness Thickness mm Nominal dimensions inch Outside diameter mm 1 4 6 35 3 8 9 52 1 2 12 70 5 8 15 88 3 4 19 05 Dimensions of flare cutting and flare nut The component molecules in HFC refrigerant are smaller compared to conventional refrigerants In addition to that R410A is a refrigerant which has higher risk of leakage because its working pressure is higher than that of other refriger ants Therefore to enhance airtightness and intensity flare cutting dimension of copper pipe for R410A has been speci fied separately from the dimensions for other refrigerants as shown below The dimension B of flare nut for R410A also has partly been changed to increase intensity as shown below Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below For 1 2 and 5 8 inch the dimension B changes Use torque wrench corresponding to each dimension I Flare cutting dimensions Outside diameter Nominal dimensions inch DN i sasana ZZZ mm Dimension A 94 Flare nut dimensions Nominal R410A R22 dimensions inch a
223. ration it will be automatically set to horizontal blow by the microcomputer in order to prevent water from dropping down 1 Hr will be displayed on the remote controller if the up down vane is set to downward with the fan speed set to be less than LOW The airflow direction is changed during HEAT operation The airflow direction cannot be set by remote controller In HEAT operation the up down vane is automatically controlled according to the temperature of the indoor unit s heat exchanger In the following cases written below the up down vane will be set to horizontal blow and the setting cannot be changed by remote controller 1 At the beginning of the HEAT operation 2 While the outdoor unit is being stopped by thermostat or when the outdoor unit gets started to operate 3 During DEFROST operation The airflow direction will be back to the setting of remote controller when the above situations are released STANDBY will be displayed on the remote controller in case of and DEFROSTING will be displayed on the screen in case of The airflow direction does not change Up down vane left right louver 1 Check if the vane is set to a fixed position Check if the vane motor connector is removed 2 Check if the air conditioner has a function for switching the air direction 3 If the air conditioner doesn t have that function NOT AVAILABLE will be d
224. rcuit board Transmitting signal to the outdoor controller circuit board 0 5V DC CN3 CN4 Zero cross signal 0 5V DC Thermistor Connect from the Primary current detection Not used lt Heatsink gt outdoor controller Connect to the outdoor 16V DC e TH8 circuit board noise filter circuit board 16V DC Ong CN4 CN5 OCH527B 76 JANE Outdoor power circuit board PUHZ ZRP100VKA PUHZ ZRP125VKA PUHZ ZRP140VKA CN4 Connect to the outdoor controller circuit board CN4 N2 Power Connect ee smoothing module capacitor Brief Check of POWER MODULE Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc If they are short circuited it means that they are broken 1 Check of POWER MODULE Check of DIODE circuit REL LS J L1 LR_J IN4 LS N4 Check of IGBT circuit L2 N1 Check of INVERTER circuit P UJ LP J LVJ LPJ LW IN4 LU INT IV IN1I IW Note The marks R S L1 L2 Pj N1 LU V and W shown in the diagram are not actually printed on the board CN2 Connect to the outdoor controller circuit board CN2 1 5 Transmitting signal to outdoor controller circuit board 0 5 V DC 2 5
225. re TH5 5 C 50C Set temperature 25C 22 C Outdoor pipe temperature TH3 45C 5C Outdoor discharge pipe temperature TH4 80C 80 C Outdoor 2 phase pipe temperature TH6 50C 5C Outdoor ambient temperature TH7 35 C 7C Temperature difference code 5 room temperature set temperature ATj 5 Discharge superheat SHd 30deg Sub cool SC 5deg 1 If the thermistor temperature data is normal not open short that data is loaded into the control as valid data When the unit enters emergency operation and TH values are mismatched set the thermistors to open short And the unit runs emergency operation with the values listed above 2 If one thermistor is set to open short the values for SHd SC will be different from the list above Example When liquid temperature thermistor TH3 has an open or short circuit Thermistor TH3 5C TH6 Ta Tb Regard normal figure as effective data Tc Td Regard normal figure as effective data 5C 50C 5C 45C Discharge superheat SHd Cooling Heating TH4 TH6 Tc Ta TH4 TH5 Td 50 Degree of subcooling SC Cooling Heating TH6 TH3 Ta 45 TH5 TH2 50 45 5 deg OCH527B 71 11 9 TEST POINT DIAGRAM Outdoor controller circuit board PUHZ ZRP35VKA PUHZ ZRP50VKA PUHZ ZRP35 50 checks solder side Brief Check of POWER MODULE
226. ressor is detected after compressor starts operating for 30 seconds Stop valve of outdoor unit is closed Decrease of power supply voltage Looseness disconnection or converse of compressor wiring connection Defective fan of indoor outdoor units Short cycle of indoor outdoor units Defective input circuit of outdoor controller board Defective compressor Defective outdoor power circuit board Dip switch setting difference of outdoor controller circuit board Open stop valve Check facility of power supply Correct the wiring U V W phase to com pressor Refer to 11 9 Outdoor power circuit board Check indoor outdoor fan Solve short cycle Replace outdoor controller circuit board Check compressor Refer to 11 6 Before the replacement of the outdoor controller circuit board disconnect the wiring to compressor from the outdoor power circuit board and check the output voltage among phases U V W during test run No defect on board if voltage among phases U V V W and W U is same Make sure to perform the voltage check with same performing frequency Replace outdoor power circuit board Check the dip switch setting of outdoor con troller circuit board Remote controller transmission error E0 signal receiving error E4 Abnormal if main or sub remote control ler cannot receive normally any trans mission from indoor unit of refrigerant address 0 for 3 minut
227. rge When charging directly from cylinder Check that cylinder for R410A on the market is syphon type Charging should be performed with the cylinder of syphon stood vertically Refrigerant is charged from liquid phase Gravimeter OCH527B 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant No Tool name Specifications Gauge manifold Only for R410A Use the existing fitting specifications UNF 1 2 Use high tension side pressure of 5 3MPa G or over Charge hose Only for R410A Use pressure performance of 5 09MPa G or over Electronic scale mM Gas leak detector Use the detector for R134a R407C or R410A Adaptor for reverse flow check Attach on vacuum pump Refrigerant charge base Refrigerant cylinder Only for R410A Top of cylinder Pink Cylinder with syphon Refrigerant recovery equipment _ 4 Refrigerant leakage detection function This air conditioner can detect refrigerant leakage which may happen during a long period of use In order to enable the leakage detection settings are required to let the unit memorize the initial conditions initial learning Refer to 14 2 INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION 3 3 PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES 1 Flowchart e Refer to the flowchart below to determine if the existing pipes can be used and if it
228. rigerant oil etc Use the following tools specifically designed for use with R410A refrigerant Make sure that the inside and outside of refrige rant piping is clean and it has no contaminants such as sulfur oxides dirt shaving particles etc which are hazard to refrigerant cycle In addition use pipes with specified thickness The following tools are necessary to use R410A refrigerant Tools for R410A Flare tool Size adjustment gauge Vacuum pump adaptor Electronic refrigerant charging scale Gauge manifold Charge hose Gas leak detector Torque wrench Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc Handle tools with care Store the piping indoors and both ends of the piping sealed until just before brazing Leave elbow joints etc in their packaging If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Do not use a charging cylinder The refrigerant oil applied to flare and flange connections must be ester oil ether oil or alkylbenzene oil in a small amount If a charging cylinder is used the composition of refrigera nt will change and the efficiency will be lowered
229. rmistor TH4 comp surface thermistor TH32 Abnormal if open 20 C or less or short 217 C or more is detected during compressor operation Detection is inoperative for 10 minutes of compressor starting process and for 10 minutes after and during defrosting OCH527B Disconnection or contact failure of connector TH4 TH32 on the outdoor controller circuit board Defective thermistor Defective outdoor controller circuit board 43 Check connection of connector TH4 TH32 on the outdoor controller circuit board Check breaking of the lead wire for thermistor TH4 TH32 Refer to 11 9 Check resistance value of thermistor TH4 TH32 or temperature by microprocessor Thermistor TH4 TH32 Refer to 11 6 SW2 on A Control Service Tool Refer to 11 10 Replace outdoor controller board Error Code Abnormal points and detection method Case Judgment and action U4 TH3 5105 TH6 5107 TH7 5106 TH8 5110 Open short of outdoor unit thermistors TH3 TH6 TH7 and TH8 Abnormal if open or short is detected during compressor operation Open detection of thermistors TH3 and TH6 is inoperative for 10 seconds to 10 minutes after compressor starting and 10 minutes after and during defrosting Check which unit has abnormality in its thermistor by switching the mode of SW2 PAC SK52ST Refer to 11 10 Disconnection or contact failure of connectors
230. rox 2 5 sec 0 5 sec 0 5 sec starts N J Start signal 1 er z received Number of blinks beeps in pattern indicates the check Number of blinks beeps in pattern indicates code in the following table i e n 5 for P5 the check code in the following table Output pattern B Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION JL Lhi ay fof s 2m Repeated lamp flash 0 a O O O 0n O On on On pattern Self check Approx 2 5 sec Approx 3 sec 0 5 sec 0 5 sec 0 5 sec 0 5 sec Approx 2 5 sec Approx 3 sec 0 5 sec 0 5 sec starts N J O Start signal boa ae received Number of blinks beeps in pattern indicates the check Number of blinks beeps in pattern indicates code in the following table i e n 5 for U2 the check code in the following table Output pattern A Errors detected by indoor unit Wireless remote controller Wired remote controller Beeper sounds OPERATION SA DG Remark INDICATOR lamp flashes Check code ymp Number of times 1 P1 Intake sensor error 2 P2 Pipe TH2 sensor error P9 Pipe TH5 sensor error 3 E6 E7 Indoor outdoor unit communication error 4 P4 Drain sensor error Float switch connector CN4F open P5 Drain pump error 5 PA Forced compressor stop due to water leakage abnormality As for indoor 6 P6 Freezing Overheating protection operation unit refer to 7 EE Communication error b
231. rrors are displayed Data error has occurred SELPCHECK g ERROR CODE Ri There might be noise or interference on the transmission path or the indoor unit or other remote controllers are defective Check the transmission path and other controllers SELF CHECK fee baan The number of data errors is the difference between the number of bits sent from the remote controller and the number actually transmitted through the transmis sion path If such a problem is occurring the transmitted data is affected by noise etc Check the transmission path c When the number of data errors is 02 Transmission data from remote controller nin rin Transmission data on transmission path L nin To cancel remote controller diagnosis Press the CHECK button in the picture in the previous page for 5 seconds or more Remote controller diagnosis will be cancelled PLEASE WAIT and operation lamp will blink Afterapproximately 30 seconds the state in effect before the diagnosis will be restored OCH527B 38 11 3 6 Self diagnosis lt Wireless remote controller gt lt ln case of trouble during operation gt When a malfunction occurs to air conditioner both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop lt Malfunction diagnosis method at maintenance service gt Procedure 1 Press the CHECK button twice
232. rs a When RC OK is displayed remote controllers have no problem Turn the power off and on again to check If abnormality generates again replace indoor controller board b When RC NG is displayed replace remote controller c When RC E3 or ERC 00 66 is dis played noise may be causing abnormality If the unit is not normal after replacing indoor controller board in group control indoor controller board of address 0 may be abnormal Error Code Abnormal points and detection method Case Judgment and action Remote controller control board Abnormal if data cannot be normally read from the nonvolatile memory of the remote controller control board Error code E1 Abnormal if the clock function of remote controller cannot be normally operated Error code E2 Defective remote controller Replace remote controller Remote controller transmission error E3 signal receiving error E5 Abnormal if remote controller could not find blank of transmission path for 6 seconds and could not transmit Error code E3 Remote controller receives transmitted data at the same time compares the data and when detecting it judges different data to be abnormal 30 continuous times Error code E3 Abnormal if indoor controller board could not find blank of transmission path Error code Eb Indoor controller board receives transmitted data at the
233. rvice port Linear expansion valve A Refrigerant LIQUID pipe connection 3 8 Refrigerant flow in cooling Refrigerant flow in heating lt Strainer Strainer 100 daa PUHZ ZRP140VKA PUHZ ZRP140YKA PUHZ ZRP1 40YKAR1 Thermistor TH7 Heat exchanger ma Outdoor l Thermistor TH6 Ball valve Outdoor 2 phase pipe Strainer 50 Refrigerant GAS pipe connection 615 88 5 8 D gt Charge plug High pressure Thermistor TH3 Outdoor pipe Charge plug Low pressure q High pressure T Distributor switch 63H Sane Thermistor TH32 Comp surface Thermistor Linear outd Outdoor pipe Stop valve expansion with service port valve B Meat interchange 4 Refrigerant LIQUID Refrigerant flow in cooling Refrigerant flow in heating pipe connection Strainer 9 52 3 8 100 Linear 100 expansion valve C OCH527B 2 10 1 REFRIGERANT COLLECTING PUMP DOWN When relocating or disposing of the indoor outdoor unit pump down the system following the procedure below so that no refriger ant is released into the atmosphere Turn off the power supply circuit breaker Connect the low pressure valve on the gauge manifold to the charge plug lowpressure side on the outdoor unit Close the liquid stop valve completely Supply power circuit breaker When power is supplied make sure that
234. s are OFF All refrigerant addresses are 00 NOOOOOO OOsOOO OoOOsoO0 OFF PP a o NoOoOmmoOO OF PA B C C NDODO m SN OFF W m m m TE orr DOmOmNO N D iim mi oo a murim im or OO or mama 123456 2 456 T23456 T23456 TAFELS T23456 T23456 T23456 Refrigerant gt 1 2 3 4 5 6 F address NOOODOM os LIL mir imi os ri I Im u ore mimi or mmm or muamm imr NDONNON OFF LA i O O ja o OOOD m os OFF OD jorr DONDONG or iima os NAONOO or mee OO or mim riririri 123456 123 456 123456 123456 123456 123456 123456 123456 8 9 10 11 12 13 14 15 9 4 3 Regulations in address settings In the case of multiple grouping system M NET and refrigerant address settings should be done as explained in the above section Set the lowest number in the group for the outdoor unit whose refrigerant address is 00 as its M NET address Group A System controller Power supply unit for transmission wire m A control remote controller Group B F Refrigerant address 00 M NET address 02 m A control remote controller JL s Refrigerant System M NET Power address 01 supply unit for transmission wire A control remote controller Refrigerant address 01 M NET address 02
235. s cannot be specified by the wireless remote controller Flow of function selection procedure The flow of the function selection procedure is shown below This example shows how to turn off he function that raises the set temperature by 4 degrees during HEAT operation Mode 24 2 The procedure is given after the flow chart aa MITSUBISHI ELECTRIC AG Check the function selection setting Switch to function selection mode Check mode is the mode entered when Enter address 50 in check mode you press the CHECK button twice to display then press the C J button CHECK ON OFF TEMP Specify unit No 01 since the function applies to unit 01 6 Set address 01 while still in check mode then press the _ button YES Note You cannot specify the refrigerant address Changs 216 FAN autostop No unit No so Cse Select mode No 24 function that raises set temperature by 4 degrees during HEAT operation MODE VANE AUTOSTART Set address 24 while still in check mode then press the C button amp e I CHECK LOUVER _h Select setting No 02 OFF I a 3 Set address 02 while still in check mode then press the J button min C ser refer cock Finished NO L YES End function selection mode Note When you switch to function selection
236. se cycle Noise level Cooling dB 49 50 Heating dB 51 52 Dimensions w mm in 1 050 41 5 16 D mm in 330 30 13 1 3 16 H mm in 1 338 52 11 16 Weight kg lbs 116 256 119 262 Refrigerant R410A Charge kg lbs 5 0 11 0 Oil Model L 1 40 FV505 Pipe size O D Liquid mm in 9 52 3 8 Gas mm in 15 88 5 8 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit S a fo z oc oo uw wo Service Ref Height difference Max 30m Piping length PUHZ ZRP100YKA PUHZ ZRP100YKAR1 Max 75m PUHZ ZRP125YKA PUHZ ZRP125YKAR1 PUHZ ZRP140YKA PUHZ ZRP140YKAR1 Mode Cooling Heating Cooling Heating Cooling Heating Power supply phase cycle voltage 3phase 50Hz 400V Max current 9 5 External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model ANB33FNCMT Motor output 3 3 Starter type Inverter Protection devices HP switch Comp shell thermo Discharge thermo Crankcase heater Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 2 Fan motor output kW 0 060 0 060 Airflow OUTDOOR UNIT m min CFM
237. st run Service menu W Cursor A Sen Test run operation Test run Remain 2 88 Press the F1 button to go through the operation modes in the order of Cool Pipe 28 C and Heat aa nia ES x v Be Cool mode Check the cold air blow off Fan Heat mode Check the heat blow off JC i Fl F2 F3 F4 Press the button and open the Vane setting screen Auto vane check Remain 2 00 Check the auto vane with the F1 F2 buttons Check the operation of the outdoor unit s fan gt Press the button to return to Test run operation gana L L E Press the button O When the test run is completed the Test run menu screen will appear The test run will automatically stop after two hours OCH527B 30 lt Error information gt When an error occurs the following screen will appear Check the error status stop the operation and consult your dealer Error code error unit refrigerant address unit model name and serial Sea a a a pa aj number will appear f f gt Error code E4 The model name and serial number will appear only if the information have Error unit IU b 9 d Ref address 68 Unt 88 een registered MEN Serial No Press the F1 or F2 button to go to the next page Reset error Reset button W Page A mm F3 F4 g
238. startup is displayed only green lights up lt 00 gt Press the remote controller s CHECK button twice to perform self diagnosis See the table below for the contents of LCD display Contents of trouble Contents of trouble Abnormality of room temperature thermistor Abnormality of indoor controller board Abnormality of pipe temperature thermistor Liquid Malfunction outdoor unit Abnormality of drain sensor Float switch connector open Malfunction outdoor unit Drain overflow protection is operating Remote controller transmitting error Freezing overheating protection is operating Indoor outdoor unit communication error Abnormality of pipe temperature No error history Abnormality of pipe temperature thermistor Cond Eva No applied unit Abnormality of refrigerant circuit Forced compressor stop due to water leakage abnormality See the table below for details of the LED display LED 1 2 3 on the indoor controller board LED1 microprocessor power supply Lights when power is supplied Lights when power is supplied for wired remote controller The indoor unit should be connected to the outdoor unit with address 0 setting LED2 remote controller LED3 indoor outdoor communication Flashes when indoor and outdoor unit are communicating OCH527B 33 11 2 4 Test run for wireless remote controller Measure an impedance between the power supply terminal block on the
239. t Operation gt X51 X52 Relay TB U V W Connection Terminal lt U V W Phase gt Sw5 Switch lt Function Switch Model Select gt TB L1 L2 L3 Connection Terminal lt L1 L2 L3 Power Supply gt SW6 Switch lt Model Select gt ony NEG 63H OM i TH33 TH32TH7 THE TH3 TH l LEV A LEV B i la When M NET adapter is connected M M 3 gt C B ma ao b t t tA ft lt t 1 wer 1R 99e9 CNF os Cr Lododo bosd 8 55559 cae ae WHT 4 42 24 i P MS IHF Thea TH32 TH76 THS THA teva eve Bessee chwr onm SE Sy YLW BLK RED WHT WHT WHT RED ENG 6 WHT WHT ee B E i s z 1b poog CNF2 5 a a ag irs PDR ure z WHT 13 gg u 0000000909990900 al MS 4 ai 1 CNM 14 E aa 3 YLW WHT 3 CN2 CN4 2E1 fo 2 TRANS 1 WHD 7 van eal Ter 299999009 99 HS eng 2 J 62 3 lol 7 se F2 F3 t k a hl CNAC g 5 le WHT g a 12 CNS F1 F4 3 h 3 1 ss wenig GL OR GaN WHT 3 1 3 4 A 2 2184 1 MODEL SELECT The black square IB indicates a switch position MODEL SW6 SW5 6 2 ON ON 100Y OFF NANANG OFF HEHEHE 12345678 123456 ON ON ie 8 Gane sr asna unan Ten one ond ner 7 one a on WHD ERED Wm voy o Aldi Milla Sr HAHAHA BLK 12345678 123456 2 SW5 1 to 5 Function Switch TB2 Eiai S1 5 sores S2 INDOOR z l Z 2 2 NU Ves s3 FFEPEPEREJE 9 z x x APIYIS S a ok Aan VL w I U 3 ane CONV B 2s MC we ea s
240. tails Auto mode Administrator password PEREPERE Language selection Service Service menu Test run Drain pump test run Input maintenance info Function setting Lossnay City Multi only Check Self check Maintenance password ALT Remote controller check SELECT Not all functions are available on all models of indoor units OCH527B 103 button lt Main menu list of PAR 30MAA PAR 31MAA gt Setting and display items Setting details Vane Louver Vent Use to set the vane angle Lossnay Select a desired vane setting from five different settings Use to turn ON OFF the louver Select a desired setting from ON and OFF Use to set the amount of ventilation Select a desired setting from Off Low and High High power Use to reach the comfortable room temperature quickly Units can be operated in the High power mode for up to 30 minutes Timer On Off timer Use to set the operation On Off times Time can be set in 5 minute increments Clock setting is required Auto Off timer Use to set the Auto Off time lt Time can be set to a value from 30 to 240 in 10 minute increments Filter information Use to check the filter status The filter sign can be reset Error information Use to check error information when an error occurs Error code error source refrigerant address unit model manufactur
241. tdoor gt TH7 since they are combined together Refer to procedure No 5 below to remove thermistor lt Outdoor gt Photo 5 Controller circuit board C B Electrical parts box Thermistor lt Outdoor 2 phase pipe gt TH6 5 Removing the thermistor lt Outdoor gt TH7 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 6 red on the controller circuit board in the electrical parts box 4 Loosen the clamp for the lead wire in the rear of the electrical parts box See Photo 5 5 Pull out the thermistor lt Outdoor gt TH7 from the sensor holder Note When replacing thermistor lt Outdoor gt TH7 replace it together with thermistor lt Outdoor 2 phase pipe gt TH6 since they are combined together Refer to procedure No 4 above to remove thermistor lt Outdoor 2 phase pipe gt Photo 6 Lead wire of thermistor lt Outdoor gt TH7 Sensor holder 6 Removing the thermistor lt Outdoor pipe gt TH3 TH33 and thermistor lt Discharge gt TH4 thermistor lt Comp surface gt TH32 1 Remove the service panel See Photo 1 2 Disconnect the connectors TH3 white and TH4 white TH33 yellow TH32 black on the controller circuit board in the electrical parts box 3 Loosen the clamp for the lead wire under the electrical parts box 4 Pull out the thermistor lt Outdoor pipe gt TH3 TH33 and thermist
242. tdoor unit conne ifi i ire i 1 blinking oting wira excessive number of indoor Check if indoor outdoor connecting wire is connected correctly units 4 units or more Check if 4 or more indoor units are connected to outdoor unit Miswiring of indoor outdoor unit co Check if noise entered into indoor outdoor connecting wire nnecting wire converse wiring or di or power supply sconnection Re check error by turning off power and on again P 41 Startup time over 2 blinking ndoor outdoor unit communication error Check if indoor outdoor connecting wire is connected correctly signal receiving error is detected by in pects door unit Check if noise entered into indoor outdoor connecting wire or Indoor outdoor unit communication error power supply transmiing error is detected by indoor Check if noise entered into indoor outdoor controller board indoor outdoor unit communication error Re check error by turning off power and on again signal receiving error is detected by outdoor unit Indoor outdoor unit communication error transmitting error is detected by outdoor unit 3 blinking Remote controller signal receiving Check if connecting wire of indoor unit or remote controller error is detected by remote controller is connected correctly Remote controller transmitting error Check if noise entered into transmission wire of remote is detected by remote controller controller
243. ter circuit board or parts fail ure in outdoor noise filter circuit board Defective outdoor power circuit board Open of rush current protect resistor RS RP100 140Y Defective outdoor controller circuit board Check following items a Power supply breaker b Connection of power supply terminal block TB1 c Connection of power supply terminal block TB1 Check following items a Connection of power supply terminal block TB1 b Connection of terminal on outdoor power circuit board Check connection of the connector CNDC on the outdoor controller circuit board Check connection of the connector LD1 and LD2 for RP60 71V and CNDC for RP100 140 on the outdoor power circuit board V noise filter Y Refer to 11 9 Check connection of reactor DCL or ACL Refer to 8 Wiring diagram a Check connection of outdoor noise filter circuit board b Replace outdoor noise filter circuit board Refer to 11 9 Replace outdoor power circuit board Replace rush current protect resistor RS Power circuit board might be short circuit Check the power circuit board Refer to 11 9 Replace controller board When items above are checked but the units can not be repaired 63H connector open Abnormal if 63H connector circuit is open for 3 minutes continuously after power sup ply 63H High pressure switch OCH527B Disconnection or contact failure of 63H connector o
244. th To make additional settings in the FUNCTION SELECTION screen repeat the steps through Note After setting the modes 07 through 14 the modes 23 through 28 cannot be set continuously or vice versa In this case after completing the settings for the modes 07 through 14 or 23 through 28 go to the step 10 to finish setting and restart setting from the step 1 At this point wait for 30 seconds or more before restarting setting Otherwise the temperature may indicate 2 Complete function selection Hold down the FILTER c mode is 15 to 28 in the picture in the previous page and TEST buttons simultaneously for at least 2 seconds After a while the function selection screen will disappear and the air condi tioner OFF screen will reappear Do not operate the remote controller for at least 30 seconds after completing function selection No operations will be accepted even if they are made Note If a function of an indoor unit is changed by function selection after installation is complete make sure that a O mark etc is given in the Check column of Table 1 to indicate the change OCH527B 100 12 1 3 Selecting functions using the wireless remote controller Type C Functions can be selected with the wireless remote controller Function selection using wireless remote controller is available only for refriger ant system with wireless function Refrigerant addres
245. the fan grille See Photo 1 4 Remove a nut for right handed screw of M6 to detach the propeller See Photo 2 5 Disconnect the connectors CNF1 CNF2 on controller circuit board in electrical parts box 6 Remove 4 fan motor fixing screws 5 x 20 to detach the fan motor See Photo 3 Grille fixing screws Service panel fixing screws Cover panel fixing screws 2 Removing the fan motor MF1 MF2 Photo 2 Photo 3 1 Remove the service panel See Photo 1 Front panel Fan motor fixing screws Fan motor Propeller Fan motor fixing screws 3 Removing the electrical parts box 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the indoor outdoor connecting wire from terminal block 4 Disconnect the connector CNF1 CNF2 LEV A and LEV B LEV C 140 only on the controller circuit board lt Symbols on the board gt lt CNF1 CNF2 Fan motor e LEV A LEV B LEV C LEV 5 Disconnect the pipe side connections of the following parts e Thermistor lt Outdoor pipe gt TH3 TH33 e Thermistor lt Discharge gt TH4 e Thermistor lt Outdoor 2 phase pipe Outdoor gt TH7 6 e High pressure switch 63H e 4 way valve coil 2184 e Thermistor lt Comp surface gt TH32 6 Disconnect the lead wires from the reactors OCH527B 141 Photo 4 Electrical parts box Controller circuit board C B A 9 bad re bi 4 IIA n y Termin
246. the reactor Photo 9 PUHZ ZRP140VKA Reactor LEV coil LEV C DCL Thermistor lt Outdoor pipe gt High pressure TH33 switch 63H 4 way valve 4 way valve coil 2184 y 12 Removing the compressor MC 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 4 4 Remove 4 back cover panel fixing screws 5 x 12 and remove the back cover panel 5 Remove the electrical parts box See Photo 4 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 then remove the valve bed 7 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit then remove the right side panel 8 Remove 3 separator fixing screws 4 x 10 and remove the separator 9 Recover refrigerant 10 Remove the 3 points of the motor for compressor fixing nut using a spanner or a adjustable wrench 11 Remove the welded pipe of motor for compressor inlet and outlet then remove the compressor Note Recover refrigerant without spreading it in the air OCH527B 139 Photo 10 Valve bed J bed fixing oy screws Power receiver Separator Compressor Separator fixing screw Compressor fixing nut OPERATING PROCEDURE PHOTOS 13 Removing the power receiver 1 Remove the service panel See Photo
247. the reverse J direction depending on the outside air but this does not TEST button mean malfunction 6 Press the ON OFF button to reset the test run in progress Pipe liquid temperature 7 Register the contact number lt In case of test run the OFF timer will be activated and the test run will automatically stop after 2 hours lt The room temperature display section shows the pipe temperature of indoor units during the test run e Check that all the indoor units are running properly in case of simultaneous twin and triple operation Malfunctions may not be displayed regardless of incorrect wiring 1 After turning on the power supply the system will go into startup mode PLEASE WAIT will blink on the display section of the room temperature and lamp green of the remote controller will blink As to INDOOR BOARD LED LED1 will be lit up LED2 will either be lit up in case the address is 0 or turned off in case the address is not 0 LED3 will blink As to OUTDOOR BOARD LED LED1 green and LED2 red will be lit up After the startup mode of the system finishes LED2 red will be turned off If OUTDOOR BOARD LED is digital display and will be displayed alternately every second e If one of the above operations does not function correctly the causes written below should be considered Find causes from the symptoms The below symptoms are under test run mode Startup in the table means the display status of
248. the setting Press End function display gt Press and at the same time The above procedure must be carried out only if changes are necessary OCH527B 99 Operating Procedure Check the setting items provided by function selection If settings for a mode are changed by function selection the functions of that mode will be changed accordingly Check all the current settings according to steps to fill in the Check column in Table 1 and then change them as necessary For factory settings refer to the indoor unit s installation manual Switch off the remote controller lt Set the outdoor unit s refrigerant address Hold down the FILTER C_D mode is 15 to 28 in the picture in the Press the CLOCK buttons C gt and C AD in the picture in previous page and TEST buttons in the picture in the previous page the previous page to select the desired refrigerant address The refrigerant A FUNCTION address changes from 00 to 15 simultaneously for at least 2 seconds selection Will start to flash and then the This operation is not possible for single refrigerant systems remote controller s display content will change as shown below ff le oS 7 Refrigerant address ru SELE display section Ss Ifthe unit stops after FUNCTION flashed for 2 seconds or 88 flashes in the room temperature display area for 2 seconds a transmission error may have
249. thermistor lt Outdoor gt TH7 together since they are combined Refer to procedure No 5 to remove the thermistor lt Outdoor gt TH7 127 OCH527B Photo 6 Clam Electrical Controller circuit p part box board C B Thermistor lt Outdoor 2 phase pipe gt TH6 Thermistor Thermistor lt Outdoor pipe gt lt Outdoor pipe gt TH33 TH3 OPERATING PROCEDURE PHOTOS 5 Removing the thermistor lt Outdoor gt TH7 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 red on the controller circuit board in the electrical parts box 4 Loosen the clamp for the lead wire in the rear of the electrical parts box See Photo 6 5 Pull out the thermistor lt Outdoor gt TH7 from the sensor holder Note When replacing thermistor lt Outdoor gt TH7 replace it together with thermistor lt Outdoor 2 phase pipe gt TH6 since they are combined together Refer to procedure No 4 to remove thermistor lt Outdoor 2 phase pipe gt Photo 7 Thermistor lt Outdoor gt Electrical parts box TH7 Removing the thermistor lt Discharge gt TH4 and thermistor lt Comp surface gt TH32 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 Remove the front panel See Photo 1 Remove the back panel See Photo 1 Remove the electrical parts box See Photo 5 Remove the sound proof
250. ts and detection method Case Judgment and action Low pressure Abnormal if the following conditions are detected for continuously 3 minutes after compressor starts heating operating for 10 minutes 1 Heating mode Detection mode 1 TH7 TH3 4 C and TH5 Indoor room temperature 2 C Detection mode 2 TH7 TH3 2 C and TH5 Indoor room temperature 4 C and TH2 Indoor room temperature 4 C Detection mode 3 TH7 TH3 4 C and TH5 Indoor room temperature 2 C and TH4 TH5 2 20 C Cooling mode TH6 TH7 2 C and TH3 TH7 2 C and Indoor room temperature Indoor liquid pipe temperature TH2 5 C Thermistor TH3 Outdoor liquid pipe temperature TH4 Discharge temperature TH5 Indoor cond eva temperature TH6 Outdoor 2 phase pipe temperature TH7 Outdoor temperature Stop valve of outdoor unit is closed during operation Leakage or shortage of refrigerant Malfunction of linear expansion valve Clogging with foreign objects in refrigerant circuit Clogging occurs in the parts which become below freezing point when water enters in refrigerant circuit Check stop valve Check intake superheat Check leakage of refrigerant Check additional refrigerant Check linear expansion valve Refer to 11 6 After recovering refrigerant remove water from entire refrigerant circuit under vacuum more than 1 hour Compressor overcurrent interruption Abnormal if overcurrent DC bus or com p
251. tting Filter sign 100h Setting No Mode No 08 Mode No 10 External static pressure 35Pa Initial setting Factory setting 2500h 50Pa e No filter sign indicator External static pressure 35 50 70 100 150Pa Refer to the right table External static pressure 35 50 70 100 150Pa Refer to the right table Set temperature in heating mode 4 deg up Available Not available Fan speed during the heating thermo OFF Extra low Stop Set fan speed Fan speed during the cooling thermo OFF Detection of abnormality Available 28 of the pipe Not available Mode No 11 Setting No Settings Set fan speed Stop n eln a PLA BA N 70Pa 100Pa 150Pa PCA KAQ Vane No 3 setting No Vanes Less smudging Downward position than the standard No vane function Vane No 1 setting Standard Standard Vane No 2 setting Be careful of the smudge on ceiling OCH527B Less draft Upward position than the standard 96 Less draft Upward position than the standard 12 1 1 Selecting functions using the wired remote controller lt PAR 30MAA gt lt PAR 31MAA gt lt Service menu gt Maintenance password is required Select Service from the Main menu and press the button At the main display the menu buttom and select Service to mak
252. turns the backlight on and it will stay lit for a certain period of time depending on the screen Function button F1 Main display Press to change the operation mode Main menu Press to move the cursor down Function button F2 Main display Press to decrease temperature Main menu Press to move the cursor up Function button F3 Main display Press to increase temperature Main menu Press to go to the previous page Function button When the backlight is off pressing any button turns the backlight on and does not perform its function except for the ON OFF button OCH527B Main display Press to change the fan speed Main menu Press to go to the next page 102 lt Menu structure of PAR 30MAA PAR 31MAA gt Main menu Press the MENU button Move the cursor to the desired item with the F1_ and F2 buttons and press the Vane Louver Vent Lossnay High power Timer On Off timer Auto Off timer Filter information Error information Weekly timer Energy saving Auto return Schedule T Night setback Restriction Temp range 7 Operation lock Maintenance Auto descending panel T Manual vane angle Initial setting Main Sub Clock Main display Contrast Display de
253. un OCH527B 110 3 8 AR 8 Request content cee Unit Remarks 2 Display range aa 50 Indoor unit Control state Refer to 13 1 2 Detail Contentsin Request Code 51 Outdoor unit Control state Refer to 13 1 2 Detail Contentsin Request Code 52 Compressor Frequency control state Refer to 13 1 2 Detail Contentsin Request Code 53 Outdoor unit Fan control state Refer to 13 1 2 Detail Contents in Request Code 54 Actuator output state Refer to 13 1 2 Detail Contentsin Request Code _ 55 Error content U9 Refer to 13 1 2 Detail Contentsin Request Code _ 56 57 58 59 60 Signal transmission demand capacity 0 255 61 Contact demand capacity Refer to 13 1 2 Detail Contents in Request Code _ 62 External input state silent mode etc Refer to 13 1 2 Detail Contentsin Request Code 63 64 65 66 67 68 69 70 Outdoor unit Capacity setting display Refer to 13 1 2 Detail Contentsin Request Code _ 71 Outdoor unit Setting information Refer to 13 1 2 Detail Contentsin Request Code _ 72 73 Outdoor unit SW1 setting information Refer to 13 1 2 Detail Contents in Request Code 74 Outdoor unit SW2 setting information Refer to 13 1 2 Detail Contents in Request Code 75 76 Outdoor unit SW4 setting information Refer to 13 1 2 Detail Contents i
254. val 2 When the display lights Normal operation Operation mode display Lighting LED1 paga punang Initial setting CD eS ae The tens digit Operation mode The ones digit Relay output Warming up Display Operation Model ompressor OFF FAN COOLING DRY HEATING DEFROSTING C5 is displayed during replacement operation Display Compressor 4 way valve Solenoid valve ON ON ON ON ON ON ON ON Display during error posiponemeni Postponement code is displayed when compressor stops due to the work of protection device Postponement code is displayed while error is being postponed 3 When the display blinks Inspection code is displayed when compressor stops due to the work of protection devices POO l OOOI BY Co PO o Contents to be inspected During operation Abnormal high pressure 63H operated Abnormal high discharging temperature and shell thermistor shortage of refrigerant Open short circuit of discharging thermistor TH4 and shell thermistor TH32 Open short of outdoor unit thermistors TH3 TH6 TH7 and TH8 Abnormal temperature of heatsink Abnormality of power module Abnormality of superheat due to low discharge temperature Abnormality in outdoor fan motor Overheat protection Outdoor unit Compressor overcurrent interruption When Comp locked In
255. ward the sensor of the indoor unit and press the gt button The sensor operation indicator will flash and beeps will be heard to indicate the current setting number Current setting number 1 1 beep 1 second 2 2 beeps 1 second each 3 3 beeps 1 second each If a mode number that cannot be recognized by the unit is entered 3 beeps of 0 4 seconds will be heard Reenter the mode number If the signal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the mode number Select the setting number Press the temp button to select the setting number 02 Not available Direct the wireless remote controller toward the receiver of the indoor unit and press the button The sensor operation indicator will flash and beeps will be heard to indicate the the setting number Setting number 1 2 beeps 0 4 seconds each 2 2 beeps 0 4 seconds each repeated twice 3 2 beeps 0 4 seconds each repeated 3 times If a setting number that cannot be recognized by the unit is entered the setting will turn back to the original setting If the signal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the setting number Repeat steps and to make an additional setting without changing unit number Repeat steps to to change unit number and make function settings on it Complete the function settings Press button D
256. way valve coil 21S4 LEV coil LEV A LEV B 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box See Photo 4 Removing the 4 way valve coil 4 Remove 4 way valve coil fixing screw M4 x 6 6 Disconnect the connector 21S4 green on the controller board in the electrical parts box Removing the LEV coil 4 Remove the LEV coil by sliding the coil upward on the controller circuit board in the electrical parts box 5 Remove the 4 way valve coil by sliding the coil toward you 5 Disconnect the connectors LEV A white and LEV B red 8 Removing the 4 way valve 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box See Photo 4 4 valve bed of the unit and then remove the right side panel 6 Remove the 4 way valve coil See Photo 8 7 Recover refrigerant 8 Remove the welded part of 4 way valve ing the right side panel cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the 5 Remove 3 right side panel fixing screws 5 x 12 in the rear Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov Note 3 When installing t
257. welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized Photo 15 Fi 4 way valve i Mimi A Away valve i coil 21S4 Figure 1 PUHZ ZRP100 125YKA High pressure switch 63H Thermistor lt Outdoor pipe gt TH33 LEV coil LEV A I LEV coil LEV B Ball valve Stop valve PUHZ ZRP140YKA LEV coil LEV C LEV coil High pressure LEV B switch 63H Thermistor lt Outdoor pipe gt TH33 4 way valve coil 2184 4 way valve LEV coil LEV A OCH527B 144 OPERATING PROCEDURE PHOTOS amp ILLUSTRATIONS 12 Removing the reactors ACL1 ACL2 ACL3 1 Remove the service panel See Photo 1 Photo 16 2 Remove the 4 fixing screws the reactor box 2 front 2 back of reactor 3 Disconnect the lead wires from the reactor See Photo 17 4 Remove each 4 fixing screws 2 front 2 back of reactor of 3 reactors Note 1 The reactor is very heavy 4 kg Be careful when handling it Note 2 The reactor box is also removable Photo 17 Reactors Reactors Lead wires of reactors Figure 2 Reactor box fixing screw front Reactor fixing screws fr
258. xtinction of transmission wire voltage and signal is caused by over numbered units Accidental malfunction of abnormality detected controller noise thunder surge Defective of abnormality generated controller If displayed address or attribute is outdoor unit indoor unit detects abnormality when indoor unit transmits signal to outdoor unit and there was no reply ACK Contact failure of transmission wire of outdoor unit or indoor unit Disconnection of transmission connector CN2M of outdoor unit Defective transmitting receiving circuit of outdoor unit or indoor unit If displayed address or attribute is indoor unit remote controller detects abnormality when remote controller transmits signal to indoor unit and there was no reply ACK OCH527B During group operation with indoor unit of multi refrigerant system if remote controller transmits signal to indoor unit while outdoor unit power supply of one refrigerant system is turned off or within 2 minutes of restart abnormality is detected Contact failure of transmission wire of remote controller or indoor unit Disconnection of transmission connector CN2M of indoor unit Defective transmitting receiving circuit of indoor unit or remote controller 51 Always try the followings when the error A7 occurs Turn off the power supply of outdoor unit indoor unit and FRESH MASTER or LOSSNAY at the sam

SERVICE MANUAL - Aire Acondicionado Mitsubishi Electric

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