TECHNICAL DATA & SERVICE MANUAL SPLIT - Termo
Contents
1. 1 20 ND Ui 96 R2 1 L 2 N 01 U2 R1 R2 power inter unit remote Supply control controller wiring 10 3 2 Control PCB switches and functions CR TRP50A B OC 040 T10 061 073 DISP 072 071 JP1 JP001 EMG 044 VARISTOR 041 ee aii ee 1 ee 2 AEN Zn JP1 DISP 072 EXCT 073 FILTER JP001 070 071 FAN DRIVE GRL CNO32 020 110 061 POWER LED D002 EEPROM 010 6 plug yellow used for remote control Refer to the remote control section 1 start stop input 2 COM 3 remote control prohibit release input 4 start signal output 5 COM DC12v 6 alarm signal output T10 2P plug red Can be used for demand control When imput is present forces the unit to operate with the termostat OFF 2P plug white Short circuiting this plug allows the unit to be operated by the remote controller even if it is not connected to an outdoor unit In this case alarm E04 which indicates trouble in the serial communication between the indoor and outdoor unit does not occur 2P plug white Test pin Short circuiting this pin allows the indoor FM H fan speed drain pump flap motor F1 position and electronic expansion valve full open position to checked However this function turns OFF if the indoor unit protection mechanism is activ2. FILTER ad a T a5 Hu o 4 5 o of zi n e Le p B u 4 M b SAPE O TOWEL TE CHE D HEATER f 26H11 15 5 2 How to replace PCB The settings data for the indoor unit are stored in the EEPROM 1010 on the indoor unit control PCB When replacing a PCB remove the EEPROM from the malfunctioning PCB and re install it on the new PCB In some cases the EEPROM itself may be damaged Check the EEPROM using the procedure below In addition depending on the model some connectors such as PNL and FS on the original PCB may include jumper wires Disconnect these wires together with the EEPROM and install them onto the new PCB 11 Turn off the power at mains of the malfunctioning indoor unit and remove the PCB 2 Remove the EEPROM and the jumper wires absent on some models from the PCB removed in Step 1 Align them correctly and plug them into the new PCB Refer to the EEPROM installation diagram on the previous page 3 Install the new PCB inthe indoor unit and turn on the unit power Yes 14115 the LED red lamp in the center of the indoor unit control PCB blinking 133 Check that the EEPROM has been correctly plugged in and that the PCB has been installed correctly as Return to Step 4 and check again 10 15 the EEPROM direction 19 51 lathe L
3. g Electronic control valve is at L10 Settings failure Outdoor unit capacity not set Recovery at power Check outdoor unit EEPROM step 480 reset Current value from MDC is 113 Indoor outdoor unit Outdoor unit judges that type Recovery at power 1 Check indoor unit 1 7 A 3 phase or 1 0 A types does not match indoor unit reset EEPROM 1 phase or less type 2 Check outdoor unit control P19 4 way valve locked Indoor heat exchanger temp Recovery at restart 1 Check 4 way valve PCB Judgment occurs drops although compressors 2 Check 4 way valve wiring E06 Outdoor unit detected Serial signal receiving failure Automatic 1 Check inter unit control after compressor are ON in heating mode 3 Check outdoor unit control abnormal signal from including failure to verify No recovery wiring has been ONfor5 min E1 E2 10 C PCB indoor unit of unitz 2 Check outdoor unit minutes Indoor heat exchanger temp ON although Ea E E07 Outdoor unit sending Serial signal sending failure Automatic 1 Check inter unit control in cooling mode x 3 28 2 gt 40 failure to indoor unit recovery wiring 2 Check outdoor unit control 20 High pressure Temp exceeds 64 C and Recovery at restart 1 Refrigerant cycle PCB protection trouble subsequently does not drop to overload operation E14 Settings failure Duplicated master unit in Recovery at power 1 Check inter unit control detected from
4. Turn off the indoor unit power at mains Turn off the indoor unit power at mains Disconnect the group control wiring 50 Disconnect the group control wiring that the indoor unit with the newly leaving just the indoor unit with the installed EEPROM is linked only to the newly installed EEPROM and the wired wired remote controller If the remote remote controller linked together If the controller is wireless connect a wired remote controller is wireless connect a remote controller wired remote controller Turn on the indoor unit power at mains Turn on the indoor unit power Llse the wired remote controller to set Use the wired remote controller to set the type capacity system address the type and capacity Refer tothe indoor unit address and group address following Refer tothe following pages Set the item codes 05 15 21 34A and 3B Refer tothe following pages Turn off the indoor unit power at mains Reconnect the group control wiring If a wired remote controller was connected disconnect it now If a central control system 15 used refer ta the technical service manuals for the central control device Turn on the indoor unit power fat mains 17 Using the Remote Controller to Manually Set the Type Capacity System Address and Group Address Detailed Setting Mode Function Set up the indoor unit with the newly installed EEPROM so that it ts linked only
5. Automatic address setting Indoor unit capacity too low E15 tailed Indoor unit capacity too high E16 1 1 indoor units connected E20 1 4 An indoor unit detected Error in transmitting serial communications signal E17 trouble in the signal from am RU 33 0 other Tn oor Unt Error in receiving serial communications signal E18 Communications trouble Communications failure with MDC e 2 between units Mis setting Setting error Indoor unit group settings error LOT Indoor outdoor unit type mismatch Loz Ati rt EUER Simubanen Main unit duplication in group control detected by indoor 103 1 t t Outdoor unit address duplication system address LOA Group wiring connected for independent indoor unit LOF imitarea 1 1 Address not set or group not set LOS Indoor unit capacity not set LOS CERAM 1 Outdoor unit capacity not set or setting error 110 i O At 1 1 Miswiring in group control wiring L11 Sutara Indoor unit type setting error capacity L13 ON Blinking i OFF Wired Wireless remote ramote controller control receiver display display Possible cause of malfunction a iff E 1 m ne Ceiling panel connection failure POS Activation of Indoor protection Fan protective thermostat Xt xt Float switch Pid E device 1 Outdoor protection Discharge t
6. ESI RESTER ETE se a 22212 S 2 lemperature C E E ETE E ER D P EUR THE ann 2 EUR ES ET D RUE CER 26 7 OUTDOOR UNIT MAINTENANCE REMOTE CONTROL f 1 Overview What is the outdoor unit maintenance remote controller Beginning with the DC INV series of outdoor units nonvolatle memory EEPROM is used in the outdoor unit PCB In this way the setting switches that were located on earlier PCBs have been converted to data This remote controller is an out door unit maintenance tool that is used to make and change the settings This remote controller can be used for checking the outdoor unit EEPROM settings and contents and also can be used to monitor the outdoor unit alarm history and indoor outdoor unit temperatures and to check the status of the indoor unit connec tions No of units operating status etc Note Because this tool does not function as a remote controller itis used only dur ing test runs and servicing System diagram Outdoor unit maintenance remote controller Outdoor unit Inter unit control wiring main bus Special service checker wiring Optional ix Remote controller control PCB unit unit Hemote Hemote controller controller The special service checker wiring is required
7. 36 48 types or 51 C 25 type Defrost control Defrost control Defrost sequence Heating operation 25 minute mask 1 Frost detection Defrost start reverse cycle defrost Detrost in progress Operating frequency 61 8 Hz Outdoor unit fan OFF Electronic control valve step 300 4 way valve OFF 2 Defrost cancel Indoor unit fan OFF 3 Start up operation 1 Frost detection 1 Outdoor heat exchanger temperature C1 method 15 minute mask after operation start Outdoor heat exchanger temperature C1 90 Outdoor air temperature TO fc 10 Defrost condition area Temperature in defrost condition area is detected continuously for 3 minutes or for 60 minutes in total 2 Outdoor air temperature is 13 C or above and outdoor heat exchanger temperature C1 of 18 C or below is detected continu ously for 20 seconds 3 Outdoor air temperature is below 139 and outdoor heat exchang er temperature C1 of below outdoor air temperature 5 C is detected continuously for 20 seconds 2 Defrost cancel Defrost end conditions 1 Outdoor heat exchanger temperature C1 rises to 12 C or higher 2 Outdoor heat exchanger temperature is 7 C or higher continuously for 1 minute 3 Defrost time of 10 minutes has elapsed 3 Startup operation After defrost ends the compressors and outdoor unit fan stop for approxi mately 40 seconds then operation begins in heating
8. SET DATA 0099 is displayed 3 Using the Timer Setting or button change the setting so that it is the same as the system address of the outdoor units in the same refrigerant system 4 Press the SET button The display stops blinking then lights The setting procedure is completed Set the indoor unit address 1 Using the Temperature Setting or button change the display to CODE No 13 2 SET DATA 0099 is displayed 3 Using the Timer Setting or button change the setting so that it is the same as the address number of that indoor unit before the PCB was replaced Caution No two units may have the same address numbers 4 Pressthe SET button The display stops blink ing then lights The setting procedure is complet ed Set the group settings 1 Using the Temperature Setting a or w button change the display to CODE Mo 14 SET DATA 0099 is displayed Using the Timer Setting or v button change the setting so that it matches the group address number before the PCB was replaced 4 Pressthe ST button The display stops blink ing then lights The setting procedure is complet ed Adjust the settings for other item codes in the same way Refer to the Table of Settings Sh Press toreturn to normal unit stopped status 18 5 4 Table of settings ltem Meaning 7 Data Code 1 Wawv Air Discharge 4 Air
9. Use the temperature setting and buttons to select the item code for the alarm history The display shows the address of the selected outdoor unit the item code and the alarm history alarm data The outdoor unit address is displayed as system XX Y Y System XX Outdoor unit system address YY Outdoor unit sub bus address The item code is displayed as 01 08 01 indicates the most recent alarm The alarm history is indicated by the alarm code If there have been no alarm codes is displayed 4 To clear the alarm history press the button The outdoor unit alarm history will be cleared 5 To end press the button The display returns to the normal remote controller display 7 6 Settings Modes Setting the Outdoor Unit EEPROM e Setting mode 1 Operating procedure gt amp Display of first 3 digits 1 Press and hold the button and button simultaneously for 4 seconds or longer 2 Use the temperature setting and C buttons to change the item code The item codes and setting data are shown in the table on the next page 3 Use the timer time and m buttons to change the setting data To confirm the changed setting data press the button At this time Setting stops blinking and remains lit 4 During this mode Setting is displayed blinking The outdoor unit address display section displays ALL the item code and number DN value in the table and the setting dat
10. Automatic recovery 1 Check outdoor air temp circuit or short circuit sensor TO in outdoor air temp 2 Check outdoor unit control sensor TO PCB F12 Disconnection open Open circuit or short circuit Automatic recovery 1 Check intake temp sensor circuit or short circuit TS in intake temp sensor 2 Check outdoor unit control TS PCB 22 6 4 Details of alarm messages 1 Alarm P29 MDC trouble Input power detection circuit trouble Compressor does not run Breakdown Motor current detection circuit trouble Is power Yes current detection circuit wiring wiring and connector connections Is OK Are No OK Yes Is compressor abnormal refrigerant accumulation electronic ORT Correct power line Check and correct wiring Check and correct wiring short circuit Ground Yes fault Yes resistor Yes Heplace compressor Is there Yes Heplace outdoor unit control PCB CR HIC280A 48 Type HIC 3 Alarm E31 communications trouble within unit IGBT short circuit protection Is E31 displayed even after the power voltoge is reset Heplace compressor Heplace electronic control valve Remove ihe cause Are sensors OK Replace outdoor unit control PCB Replace an
11. Discharge He 2 Le Air Discharge semi Concealed s5emi Concealed S5emi Concealed Type 0003 1 Way Air Discharge 0005 Concealed Duct 0006 Concealed Duct High Static semi Concealed Slim Pressure 07 Caeiling Mounted 0008 Wall Moaunted 0010 Floor Standina 0000 0001 2 2 Type 74 0003 2 8 94 Indoor 0005 3 6 Type 124 0007 4 5 Type 164 0009 5 6 Type 184 41 LInit Capacity kW 0010 6 3 Type 224 0012 7 3 Type 254 0015 10 6 364 0017 14 0 484 Outdoor QO01 Unit 1 12 Unit 0002 Unit No 2 system Address Unit No 30 Unit No 1 Indoor Unit No 2 Ta Unit Address 0064 Unit No 64 cont Individual Unit Em Main Unit 0002 Sub Unit Fan Speed 0002 Compressor On Fan speed LL Heater Compressor Off Fan speed LL off Temperature 0031 All Sensors Set to On 15 Sensor Setting Maximum 12 0580 24 Temperature Setting for Heating Air Outlet 0000 Temperature 0001 Control RAP Valve 0000 No Feature 0001 Yes invalid 18 19 6 SERVICE PROCEDURE 6 1 Meaning of alarm message ON Blinking OFF Wired Wireless remote remote controller receiver display isplay Possible cause of malfunction 2 ES 518133 Oo i148
12. inverter compressor does not exceed the designated value control value Outdoor unit fan control 1 Cooling fan control 1 The outdoor unit fan minimum speed and maxi mum speed are determined according to the out door air temperature and the operating frequency The speed is controlled in stages between the minimum speed and maximum speed based on the outdoor heat exchanger temperature C2 at that time For 60 seconds after start the outdoor unit fan operates at maximum speed as determined by the outdoor air temperature and operating fre quency at that time Subsequently the fan operates atlow speed until the outdoor heat exchanger temperature C2 rises 2 3 If the discharge temperature TD sensor is abnor mal or has become disconnected the fan will not operate and a protective device is activated 2 Heating fan control 1 The outdoor unit fan minimum speed and maxi mum speed are determined according to the out door air temperature and operating frequency The speed is controlled in stages between the minimum speed and maximum speed based on the outdoor heat exchanger temperature C1 at that time 12 2 If the outdoor heat exchanger temperature C2 is 24 C or higher continuously for 5 minutes fan operation may stop same conditions as when the thermostat is OFF In this case the fan will restart after 3 minutes 3 This control is not performed during the 3 minutes after start for 1 mi
13. mode 14 5 REPLACING PCB 5 1 Replacing PCB Replace the PCB by following the instructions How to Replace Indoor Unit Control PCB on the next page Pay special attention to the following points 1 Before replacing the indoor unit PCB be sure to turn off the power source at mains 2 When replacing the PCB for an indoor unit be sure to install the EEPROM that was attached to the original indoor unit PCB 3 Some connectors such as PNL and FS on the PCB may include jumper wires When removing the PCB of a mal functioning indoor unit disconnect these wires together with the EEPROM and install them onto the new PCB 4 Be careful when handling the as its pins are easily bent 5 Securely install the EEPROM in the location and orientation shown in the figure below 6 The alarm message F29 may not necessarily appear immediately in cases of malfunctions in the EEPROM Please monitor for a while after turning it on About EEPROM Erasable Programmable Read Only Memory EEPROM is a component in which the various information necessary for functionning can be electronically written or erased This component holds informations that is essential for the running of the unit and must be handled with care NN EEPROM D002 led lamp red TRANS PHY CA TREEDE B I IIE Noc 2 EE co x c 4 amp o 24 E n m p T I Dp
14. to the wired remote controller Then in Detailed Setting Mode set the type capacity system address indoor unit address and group address Procedure Stop operation of the unit before following these steps Press and hold the SET CL buttons simultaneously for 4 seconds or longer Check that the remote controller display shows blinking The remote controller display shows CODE Mo 10 and SET DATA 0001 blinking 1 When group control is engaged press the UNIT button and select the indoor unit address The indoor unit fan that corresponds to the address displayed in the UNIT No section will then start up set the indoor unit type 1 Using the Timer Setting or button change the setting so that it matches the indoor unit type Refer to the Table of Settings on the next page 2 Pressthe SET button The display stops blinking then lights The setting procedure is completed Set the indoor unit capacity 1 Using the Temperature Setting a or button change the display to CODE No 11 2 SEI DATA 0099 is displayed 3 Using the Timer Setting or button change the setting so that it matches the indoor unit capacity 4 Pressthe SET button The display stops blinking then lights The setting procedure is completed oet the system address 1 Using the Temperature Setting 4 Or w button change the display to CODE 12 2
15. 1043 List of Item Codes Parameter Refrigerant type 407 H407C 22 H22 410 H410 Outdoor unit capacity 0 Disabled 22 25 28 32 36 40 45 50 56 63 71 80 90 100 112 125 140 160 180 200 224 250 280 340 355 400 450 500 560 600 630 670 710 800 840 Control system schedule ENS L Q I AAA systom schedule stom schedule stom schedule Commol system schedule 111122 system schedule S OS Control system schedule Figures represent the capacity data for each model 34 amp Technibel ern Lu aci om 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728
16. 55 C or below 2 Outdoor coil temperature simultaneous operation multi reset wiring cooling high load C2 Continuously for 30 seconds sensor C2 control 2 Check indoor unit temp Alarm is output when this Detected by outdoor unit combination occurs once 5 5 Continuously for less than 30 E15 Automatic address Indoor unit capacity too low Recovery at power 1 Check inter unit control seconds Inverter stops setting failure reset wiring 2 Check outdoor unit control 22 Outdoor unit fan Inverter stops after alarm is Recovery at restart 1 Position detection trouble PCB detected E d oe EA E16 atic address Indoor unit capacity too high Recovery at power 1 Check inter unit control IG ES motor was activated setting failure reset wiring activated or lock Check outdoor unit control 2 Check outdoor unit control was detected at PCB PCB outdoor unit fan Refer to outdoor unit fan E20 Automatic address Outdoor unit cannot receive Recovery at power 1 Check inter unit control motor judgment methods setting failure any serial signals from indoor reset wiring units 2 Check outdoor unit control P26 Inverter protection Inverter stops after alarm is Recovery at restart 1 Stops immediately when PCB circuit was detected Alarm is output restarted E31 Communications No communication possible Automatic recovery Check outdoor unit control activated or G Tr when inverter stops pre trip
17. 60 1 no control 0 u EN a lt ae or ENG OF 10 11 12 13 n2 Figures in parentheses indicate the data at the time of shipment from the factory 33 Settings mode 2 Operating procedure 1 2 3 4 5 Press and hold the button button and button simultane ously for 4 seconds or longer Use the temperature setting and buttons to change the item code The item codes and setting data are shown in the table below Use the timer time gt and buttons to change the setting data To confirm the changed setting data press the button At this time Setting stops blinking and remains lit During this mode Setting is displayed blinking The display shows the set outdoor unit address System System XX System address Y Y 2 Address at outdoor unit sub bus item code number DN value in the table below and the setting data 6 digits The setting data is displayed in 6 digits The display changes between the first 3 digits Fig 10 and the last 3 digits Fig When the first 3 digits are displayed the top point of the colon is lit To end the setting mode press the button The display returns to the normal display mode Display of first 3 digits Display of last 3 digits 80 Refrigerant types G4 and E are displayed alternately Example shows 000 410 FRH4
18. ED red lamp lit correct 11 Turn off the power fat mains Re install the EEPROM 6 Start the unit running correctly 9 The EEPROM is damaged Re place it with an EEPROM included in the service pack 7 Does the remote controller Yes Make a note of the indoor display the F29 alarm code unit addresses and outdoor unit addresses in the indoor 12 Return to Step 4 and check again unit system where the F29 alarm occurred 8 The is functioning normally You may continue to use it End of replacement procedure 16 5 3 How to replace EEPROM with EEPROM included in PCB service pack It is necessary to store the address type model type and capacity into the new EEPROM if you have replaced the old one with the EEPROM in this PCB service pack You can program the memory settings through the remote controller In some cases the EEPROM may be damaged Additionally check the EEPROM using the procedure below you know the outdoor unit system address the indoor unit system address and the group address of the malfunctioning indoor unit fas lse the wired remote controller s detailed setting mode to set the outdoor Start automatic address setting Refer to the Automatic Address unit system address and the indoor unit system address Yes Is the system Under group control Is the system under group control Yes Yes Setting mode for each outdoor unit
19. Layer short in the trouble within unit with MDC for 3 minutes or PCB short circuit short consecutively 4 times compressor longer time 0 8 sor less 2 Check inverter control in inverter control PCB H1 Overcurrent Inverter stops after alarm is Recovery at restart 1 Refrigerant cycle trouble Wiring trouble detected overload operation 2 Loose screws between HIC control PCB and radiating plate 3 Cooling failure of radiating plate Remote Alarm 4 Check outdoor unit PCB controller Judgment condition Clear condition Judgment and correction wiring alarm display P29 Current detection Inverter stops after alarm is Recovery at restart 1 Stops immediately when circuit trouble detected Alarm is output restarted current value is when inverter stops pre trip Layer short in the high even when consecutively 4 times compressor compressor Is 2 Check inverter control PCB stopped Wiring trouble Compressor motor Inverter stops after alarm is Recovery at restart 1 Refrigerant cycle trouble output trouble detected overload operation Inverter compressor 2 Loose screws and contact trouble failure between HIC control MDC trouble PCB and radiating plate 3 Cooling failure of radiating plate 4 Check outdoor unit PCB wiring Compressor does not Inverter stops after alarm is Recovery al restar 1 Compressor trouble locked run Overcurrent detected eic protection circuit Replace the compressor activates af
20. Serial commu Remote controller is Error in receiving serial communication signal 01 nication errors detecting error signal from Signal from main indoor unit in case of group control Mis setting indoor unit Outdoor system address indoor system address or indoor unit individual main sub setting is set fAutomatic address setting is not completed Auto address is not completed i Error in transmitting serial communication signal Ed Xt Indoor unit is detecting error signal from remote controller system controller 1 Improper setting of indoor Indoor unit address setting is duplicated E08 Remote controller setting is duplicated E09 1 1 4 2 Y Indoor unitis detecting error Error in transmitting serial communications signal E10 i signaled from signal option T ee Error receiving serial communications signal E14 i 1 T T Setting error Main unit duplication in simultaneous operation multi control E14 detected by outdoor unit Indoor unitis detecting error Error in receiving serial communications signal E04 signaled from outdoor unit 7 ae 1 3 Error in transmitting serial communications signal 05 Outdoor unit is detecting Error in receiving serial communications signal fineluding unit d signaled from indoor quantity verification failure xt uni 5 ne mu Error in transmitting serial communications signal Eq
21. TECHNICAL DATA ch amp SERVICE MANUAL 5 amp Tec hnib el SPLIT SYSTEM AIR CONDITIONER 2 _ 2 0 8180 447 1 09 2006 IMPORTANT Please read before installation This air conditioning system meets strict safety and operating standards For the installer or service person it is important to install or service the system so that it operates safely and efficiently For safe installation and trouble free operation you must Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual he unit must be supplied with a dedicated electrical line AN lt I This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death JW CAUTION This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage If necessary get help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sale service outlet or your certified dealer for additional instructions In case of improper installation The manufacturer shall in no way be responsible for improper installation or maintenance service incl
22. a 6 digits The setting data is displayed in 6 digits The display changes between the first 3 digits Fig 00 and the last 3 digits Fig E When the first 3 digits are displayed the top point of the colon is lit 5 To end the setting mode press the button A and g are displayed alternately Example shows display of 000 001 32 List of Item Codes onowfall sensor operation 0 No sensor control performed 1 sensor control not performed 2 Sensor present control performed 3 Sensor present control not perform ed 01 02 03 04 Outdoor fan quiet mode 0 Disabled 1 Quiet mode Defrost fan speed selection 0 Disabled 1 LL fan speed This function is not present with the DC INV lgnore capacity 0 Disabled 1 Ignores capacity ratio 7 Forced operation of 0 Disabled Indoor unit drain pump 1 During cooling only 2 hours stopped 20 minutes operating regardless of whether the unit is running or stopped 2 During cooling only 4 hours stopped 20 minutes operating regardless of whether the unit is running or stopped 3 At all times 4 hours stopped 20 minutes operating 4 Ai all times 2 hours stopped 20 minutes operating Odor countermeasure when 0 Disabled 1 Odor countermeasure Is active indoor cooling thermostat is OFF 5 Demand 1 4095 4595 10095 160 51 Demand 2 4095 4595 100 160 Current control level 4096 4595 100 1
23. ated The unit can be operated even if the remote controller and outdoor unit are not connected However even if the remote controller cannot is connected it cannot be used to operate the unit This function can be used for short term tests Jumper wire Allows selection of the T10 terminal 4 PROCESS AND FUNCTIONS 4 1 control functions Electronic control valve control Opening of the electronic control valve is controlled so that the appropriate operating conditions are main tained based on the signal from each sensor dis charge temperature TD intake temperature TS outdoor heat exchanger temperature C1 and indoor heat exchanger temperature E1 E2 Discharge temperature release control 1 This control lowers the operating frequency of the compressor when electronic control valve control is unable to maintain the appropriate operating conditions because the discharge temperature fails to decline or because there is a sudden increase in the discharge temperature 2 If the discharge temperature exceeds 111 C the compressor is stopped and then restarted Error count 1 The error count is cleared when operation has continued for 10 minutes after the compressor was restarted 3 4 If 2 repeats 4 times without the error count being deared error count 4 alarm occurs Current release control The compressor operating frequency is controlled so that the current that is input to the
24. ay changes automatically every 10 seconds The display does not change if higher unit numbers do not exist Pressing the button switches the display immediately to the next higher level even if 10 sec onds have not passed 8 The total compressor operating time is displayed in 1 hour units using 8 digits When the first 4 digits are displayed the top point of the colon is lit When the last 4 digits are displayed the colon points are not lit The display of the first 4 and last 4 digits changes automatically every 10 seconds It can also be changed by pressing the button 10 Total compressor operating times and are displayed alternately With the outdoor unit maintenance remote controller when connected to the outdoor unit the unit remote con troller check functions will not operate 30 7 4 Monitoring Operations Display of Indoor Unit and Outdoor Unit Sensor Temperatures lt Operating procedure gt 1 Press and hold the button and button simultaneously for 4 seconds or longer to switch to temperature monitor mode During temperature monitoring Service Monitor is lit The display and operations are the same as when monitor mode is started from the unit remote controller 2 Press the wm button and select the indoor unit to monitor 3 Use the temperature setting and buttons to select the item code of the temperature to monitor The selected indoor unit No and the te
25. d TS sensors 2 Alarm P267 IGET short circuit protection on inverter control IPDU PCB HIC PCE trouble Is power Yes Are circuit wiring connector connections and Ma Yes Has filter PCB HYOO1 or ROQ relay activated Yes Disconnect LU V MW output terminal on and No Yes Has filter PCB AC fuse blown start operation Does alarm Pog occur Yes Is compressor OK fCheck for layer short circuit Yes Is resistance between each terminal on HIC PCB OK See following page Yes Replace outdoor unit control 25 36 Type Normal 23 HIC HIC Check HIC PCB Heplace if PCB has failed resistance E Hee u Corect power line Correct Replace filter PC B Replace HIC PCB Replace compressor 200 or more 300 or more HIC HIC 300 or more 300 or more HIC 200 or more 200 or more V W U V W 200 or more 4 Alarm 22 Outdoor unit fan motor drive circuit trouble Are connectors CNO03 and CNO04 connected Correct the connector correctly to the outdoor unit control PC B connections Disconnect connectors CNDOO3 and ChOOA from outdoor unit control and rotate fan b
26. e 36 48 types Heating high load control The below control is performed during heating opera tion based on the indoor heat exchanger temperature E2 E2 C 22 uu I 17 5 K operating frequency increase prohibit area 1 the temperature is in the M area operating frequency reduction and thermostat OFF area the compressor operating frequency is reduced The compressor operating frequency is reduced every 30 seconds as long as the temperature remains within this area 2 If the temperature is continuously in the M area the thermostat turns OFF 3 If the temperature is in the N area operating frequency increases are prohibited 4 If the temperature is in the L area the operating frequency is raised to the original frequency the frequency prior to frequency reduction by 6 Hz every 60 seconds 1 C Thermostat OFF N operating frequency increase prohibit area When the compressor turns ON and the E2 tem perature rises the temperature at which the M area is first entered is 54 C 36 48 types or higher than 51 C 25 type If the E1 E2 temperature subsequently falls to the L area the temperature for entering the M area is raised to 56 C 36 48 types or 52 C 25 type However if the E1 E2 temperature falls to the L area and falls below 30 C then the temperature for entering the M area is changed back to 54 C
27. ed 24 Sensor Temperature Display Function Displayed both when operating and stopped The below check procedure can be used to display all remote controller indoor unit and outdoor unit sensor temperatures Check procedure 1 Press and hold the button and A button simultaneously for 4 seconds or longer 2 Unit No X X main unit INo item code XX sen sor address and service monitor OOAX sensor temperature appear on the remote controller LCD See figure 3 Press the temperature setting and buttons and change the item code to the sensor address of the sensor that you want to monitor For the relationship between the sensor address and the sensor type refer to the below Sensor Temperature Correlation Table 3 4 During group control and simultaneous operation multi control press the button and change to the unit that you want to monitor 5 1 4 5 Press the LA button to return to normal remote Figure Sample display when discharge controller operation temperature at unit No 1 1 is 85 C NOTE The temperature display reads for units that are not connected If monitor mode is selected during normal opera tion the only parts of the LCD that change are those shown in the figure All other displays do not change and remain as they were during normal operation Sensor Temperature Correlation Table Sensor installation Sensor Sensor Sensor t S
28. el K7ONO91T Flap motor M2LB24Z2A12 rating 240 VAC rpm 2 5 nominal output 3 coil resistance 25 C 15 62 15 Dew proof heater 240 26W Aluminium plate fin Copper tube 1 1 3 0 258 DATA SUBJECT TO CHANGE WITHOUT NOTICE CAFP165 185R5l Controller PCB Part No CR CRP50A B Controls Microprocessor Fan amp Fan Motor Centrifugal fan Dia and lenght 1 02801166 Fan motor model Q ty K35407 MO1972 1 No Of poles rpm 230 V High Med Low LowLow 4 880 740 660 290 Running Amps 0 27 Power input 61 Coil resistance Ambient temp 20 C BLU BRN 33 9 39 1 BLU BLK 325 374 BLK GRY 78 7 90 5 GRY RED 49 7 57 2 RED WHT YEL 155 178 oafety devices Type Internal thermal protector Operating temp Open 150 x 10 Close Automatic reclosing Run capacitor 2 0 440 Model K7ONO91T Flap motor M2LB24Z2A12 rating 240 VAC rpm 2 5 nominal output 3 coil resistance 25 C 15 62 15 Dew proof heater 240 V 26W Aluminium plate fin Copper tube 2 1 3 0 258 DATA SUBJECT TO CHANGE WITHOUT NOTICE 1 3 Other Component Specifications ATR 11J225A Primary VAC 230V 50Hz Secondary 1 AC 20V 0 2A oecondary 2 AC 14V 0 3A secondary 3 AC 10 2V 1 4A Thermal cut off temp 136 C Thermistor Coil sensor E1 E2 PBC 41E S26 Resistance kQ 0 C 15 0 5 Thermistor Room sensor TA DHKTEC 35 S85N Re
29. emperature trouble Open phase detected AC power trouble Mo gas 4 way valve lacked High cooling load Outdoor fan trouble Inverter compressor trouble HIC PCB Inverter compressor trouble MDC Simultaneous operation multi control trouble Compressor current failure towerload Thermistor Thermistor open circuit Indoor heat exchanger temperature sensor ET fault Short circuit Indoor heat exchanger temperature sensor EZ Indoor temperature sensor Thermistor open circuit Discharge temperature TD Short circuit foutdoor Outdoor heat exchanger temperature C1 Outdoor heat exchanger temperature CZ Outdoor air temperature TO Intake temperature TS Indoor EEPROM error Outdoor error 20 6 2 Led indicator messages on outdoor control PCB Power ON sequence 1 No communication from indoor units in system If it is not possible to advance to 3 repeats 1 2 At 3 changes to normal 3 Hegular communication OK Capacity and unit quantity match control 2 Communication received from 1 or more indoor units in system Normal operation Displayed during automatic EEPROM error F31 address setting 1 and initial communication After these are completed alarm F31 is displayed Pre trip insufficient gas Yr 0 25 0 75 Pre trip P20 XE 075025 Pre trip other Yt Alternate blinking during alarms LED 1 blinks M times then LED 2 blinks N times The cycle the
30. ensor t location address address Hoom temp temp used for control Remote controller temp Discharge temp Indoor unit Indoor intake temp Indoor heat exchanger temp E1 Indoor heat exchanger temp E2 Discharge temp TD Current AC current Outdoor unit Intake temp TS Outdoor electronic control valve position Outdoor heat exchanger temp C1 Outdoor heat exchanger temp C2 Outdoor air temp Main unit only when group control 15 enabled 25 Check Pin Short circuit the cooling check pin or heating check pin on the outdoor unit control to perform the control described below 1 Thermistor checks The checks listed below are performed for 1 second each in order from the top down The results are dis played by LED 1 and 2 Checkresuts results Thermistor LED 1 and 2 OFF i E ire 2 4 way valve turns ON for 1 second 3 Forced cooling or heating operation 6 5 Table of Thermistor Characteristics 1 Outdoor Air Temp TO Intake Temp TS 2 Discharge Temp TD Sensors Heat Exchanger Temp C1 Sensor Heat Exchanger Temp C2 Sensor 22 P AP LL LLLI NL LLLI ERNE ENMNMEENENB Jemperature 20 gt Resistance gt Resistance i 0 ES Nl ese BC n En 21 21 2 2 2 H E 1 E m jer EN BEL a RT
31. ente Judgment condition Clear condition controller pie Judgment condition Clear condition Judgment and correction alarm display alarm display Abnormal discharge Stops when temp exceeds Recovery at restart 1 Check refrigerant cycle F31 EEPROM trouble Reading wnting failure Recovery at power 1 Check EEPROM IC901 temperature 111 C gas leak reset 2 Check outdoor unit control Discharge temp 2 Electronic control valve PCB 3 SG GG sensor TD 102 Mismatch of indoor Indoor unit judges that type Recovery at power 1 Check indoor unit EEPROM value and outdoor unit types does not match outdoor unit reset 2 Check indoor unit control POS Missing phase Current value sent from MDC Recovery at restart 1 Check R S T power HYPE 2272 detected on outdoor unit control PCB is 2 Check inverter control PCB Lo4 Settings failure Duplicated outdoor unit Automatic recovery 1 Check outdoor unit disconnected or AC low 3 Check outdoor unit control address system address system address power trouble No AC power input for 3 PCB 2 Check inter unit control minutes or longer 5 wiring 15 Insufficient gas level The following conditions Recovery at restart Check refrigerant cycle 107 Settings failure eee eat is at power 1 Sia inter unit control detected Continue fond minute gas leak independent control indoor 2 Check indoor unit Discharge temp is 95 C or P
32. ermostat Remote Controller Option K70D036Z K70D042Z Fan speed K70D038Z 7000404 3 and Auto Airflow direction Auto Remote control Air Filter Washable Sound pressure level high med low 03 49 46 Refrigerant tubing connections Flare type Refrigerant tube diameter Narrow tube 6 35 1 4 Wide tube 12 7 1 2 Refrigerant R410A Refrigerant control Dimensions amp Weight Dimensions Ceiling panel Height Width Depth Electronic expansion valve Height Width Depth Package dimensions Unit Ceiling panel Height Width Depth Volume Height Width Depth Volume Weight include panel Ceiling panel Net Shipping Net Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE 1 2 Major Component Specifications CAFP125R5I Controller PCB Part No CR CRP50A B Controls Microprocessor Fan amp Fan Motor Centrifugal fan Dia and lenght 1 02801166 Fan motor model Q ty K35407 MO1972 1 No Of poles rpm 230 V High Med Low LowLow 4 880 740 660 290 Running Amps 0 27 Power input 61 Coil resistance Ambient temp 20 C BLU BRN 33 9 39 1 BLU BLK 325 374 BLK GRY 78 7 90 5 GRY RED 49 7 57 2 RED WHT YEL 155 178 oafety devices Type Internal thermal protector Operating temp Open 150 x 10 Close Automatic reclosing Run capacitor 2 0 440 Mod
33. ile the test run is in progress Conditions of test runs that are started from the unit remote con troller are not displayed on the outdoor unit maintenance remote controller e High speed operation Fig 3 Do not use with actual units The devices may be damaged Operation The time zj button changes between high speed operation and normal operation During high speed operation the repeat timer mark ea is dis Ceo JU 8 CB Eod EA cole ca eJ 28 Display functions Use the temperature setting and buttons to change the item code Display contents Outdoor unit alarm contents code OFF when normal At initial status Blinking 8 alarm code display at pre trip LED 2 No of indoor units connected in that refrigerant system Unit Nos of connected indoor units in that refrigerant system 2 mJ Operating status of indoor units in that refrigerant system blinks when alarms occur 2 Unit Nos of indoor units in that refrigerant system where the thermostats are ON 2 No of outdoor units connected in that refrigerant system units 1 Unit Nos of connected outdoor units in that refrigerant system 2 Operating status of outdoor units in that refrigerant system blinks when alarms occur 2 Total compressor operating time n 1 hr units 3 Total power OM time of outdoor unit in 1 hr units Compressor start count Outdoor unit microcomputer firmwa
34. in order to connect the outdoor unit maintenance remote controller to the out door unit PCB Even when the outdoor unit maintenance remote controller rs connected a separate remote controller or other control device must be connected to the indoor unit i Qutdoor unit Indoor Indoor 7 2 Functions B Normal display functions 1 Functions Button operations can be used to perform the following functions Start stop of all indoor units Switching between cooling and heating Test run of all indoor units High speed operation of indoor units Do not use with actual units This may damage the devices 2 Display The following can be displayed Alarm details display No of indoor outdoor units Unit Nos of connected indoor outdoor units Indoor outdoor unit operating status blinks when an alarm occurs Indoor unit thermostat Individual display of outdoor unit alarms Outdoor unit compressor total operating time Outdoor unit oil sensor oil level Outdoor unit total power ON time Outdoor unit microcomputer version Other m Temperature monitor Displays the indoor outdoor unit sensor temperatures m Outdoor unit alarm history monitor Displays the outdoor unit alarm history Settings modes Settings mode 1 and settings mode 2 are used to make the outdoor EEPROM settings 21 7 3 Normal Display Operations and Functio
35. mperature data are displayed 4 To end monitoring press the A button The display returns to the normal display The display does not blink 000 Outdoor unit data A Discharge temp TD 0d Intake temp TS 0E Outdoor uri heal exchanger lemp C1 Outdoor unit heat exchanger temp C2 Outdoor air temp TO Hewsmktmpeaue 000002 14 Cumemvaue 00000000000 02245000 Outdoor MY value 19 Depending on the model some items may not be displayed 02 03 04 05 07 0C OE OF 10 11 12 13 14 15 19 31 7 5 Monitoring the Outdoor Unit Alarm History Display of Outdoor Unit Alarm History Displays outdoor unit alarms only Does not display indoor unit alarms Check the indoor unit alarm histories separately using the indoor unit remote controllers or other control device Operating procedure gt 1 Press and hold the button and button simultaneously for 4 seconds or longer to change to outdoor unit alarm history mode During the alarm history display Service Check is lit The display and operations are the same as the monitoring of the alarm device history that is performed using the unit remote controller However the outdoor unit address appears instead of the unit Mo 2 Press the rwr button and select the outdoor unit for alarm history monitor ing 4 8 1 4 i2 3
36. n cut your fingers When installing In a ceiling Make sure the ceiling is strong enough to hold the unit weight It may be necessary to build a strong wooden or metal frame to provide added support ln a room Properly insulate any tubing run inside a room to prevent sweating which can cause dripping and water damage to walls and floors lh moist or uneven locations Use a raised concrete base to provide a solid level foundation for the outdoor unit This prevents damage and abnormal vibrations In area with strong winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle a Snowy area for heat pump type systems Install the outdoor unit on a raised platform that is higher then drifting snow Provide snow vents When connecting refrigerant tubing Keep all tubing runs as short as possible Use the flare method for connecting tubing Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them screw by hand and then tighten the nut with a torque wrench for a leak free connection Check carefully for leaks before starting the test run NOTE Depending on the system type liquid and gas lines may be either narrow or wide Therefore to avoid confusion the refrigerant tubing for your particular model is specified as narrow tube for liquid wide tube for gas When servicing Turn the power OFF at
37. n repeats M 2 P alarm 3 alarm 4 E alarm 5 alarm amp L alarm Alarm Mo Refer to 1 Examples of alarm display below Automatic address setting Automatic address setting progress xt Xr Blinking alternately Automatic address setting alarm E15 Yr 0 25 0 75 Xt 025 075 Blinking simultaneously Automatic address setting alarm E20 Yr 0 75 0 25 xt 0 5 0253 Blinking simultaneously Automatic address setting alarm Other than E15 and E20 Yt xt Blinking simultaneously J ON xt Blinking 0 25 0 75 indicates that the lamp illuminates for 0 25 seconds and then is OFF for 0 75 seconds Unless otherwise indicated the blinking 1s 0 5 0 5 e OFF Examples of alarm display other than E15 E16 and E20 Alarm Display LED 1 lt Alternately LED 2 Blinks 2 times m Blinks 4 tim es 2 Blinks 5 times i Blinks 31 times Blinks 3 tim es Blinks 1 tim es S Blinks 2 times NAM TENUTI E Blinks 13 times Blinks 3 times Blinks 4 times mn Blinks 4 tim es a Blinks 5 times Blinks times Sa Note Blinks 61 Blinks 131 ss Sales ris di This table shows example alarms Other alarms may also be displayed 21 6 3 Symtoms and parts to inspect Remote Alarm Remote controller cont
38. ns Normal display functions Connect the special service checker wiring to the outdoor unit PCB The connection is shown in the figure below RC 3P blue PCB connector VN E blue ES 325 52 800 Special service checker wiring Itis not necessary to disconnect the communications line in the inter unit control wiring if it has already been connected at this time Settings modes 1 and 2 can be used even when the outdoor unit is independent when 1 maintenance remote controller is connected to 1 outdoor unit and automatic address setting for the indoor units has not been completed Displays the overall system status for that refrigerant system All units start stop Fig 1 lt Operation gt The button can be used to start and stop all the indoor units The LED turns ON when 1 or more indoor units is operating The LED blinks when an alarm has occurred at 1 or more indoor units during operation e Switching between cooling heating Fig 1 Operation The button switches between heating and cooling modes he specifications are equivalent to the heating cooling input that was present on earlier outdoor unit PCBs The display shows the operating mode of the indoor unit with the lowest number e All units test run Fig 2 Operation The button switches test run ON OFF for all indoor units Press and hold for 4 seconds to turn ON Test run is displayed wh
39. nute after defrost ends and while defrost is in progress Coil heating control 1 This control applies current to the coil of the stopped compressor to heat the compressor in place of the crank case heater 2 When the discharge temperature TD is less than 25 C the current application judgment is made based on the outdoor air temperature Current application starts when the outdoor air temperature drops to 15 C or below Current application stops when the outdoor air temperature rises above 18 C Control for prevention of short intermittent operation In order to protect the compressor this control does not allow the compressor to be stopped for 10 min utes after operation starts even if the thermostat OFF signal is received from the indoor unit Control for prevention of high cooling loads 1 This control reduces abnormal high pressure increases during cooling operation 2 If the outdoor heat exchanger temperature C2 reaches 64 C or above the compressor is stopped Error count 1 3 minutes after the compressor stops if the out door heat exchanger temperature C2 is less than 55 C the compressor is restarted If opera tion subsequently continues for 10 minutes the error count is cleared 3 4 If the outdoor heat exchanger temperature C2 again reaches 64 C or higher within 10 minutes after the compressor restarts the compressor is stopped again Error count 2 If
40. re version Outdoor unit microcomputer software version 3 XX YY system See following page for 72 and 3 Displays the outdoor unit address of the selected outdoor sub bus AX Main bus line outdoor system address 1 30 YY Outdoor unit address in outdoor sub bus 1 8 This ts 1 when there is only 1 outdoor unit Locations where 1 2 and 3 are displayed are shown below Sample displays gt 01 of connected indoor units 02 Unit Mos 1 2 3 and 4 are connected 4 units connected 29 2 7 segment 4 digit display for remote controller timer display The connected unit Nos are displayed as shown below using the 7 segment 4 digit 88 display and the colon e Display for unit Nos 1 20 Not lit Not lit 61 80 Lit Lit 15 not displayed Display for unit Nos 21 40 lit Not lit Not lit Not lit 24 2 O 1 36 eoor of display Meaning of display colon 4 9 4 24 ao oe S 30 T m F Taas je Em he meaning of the colon display changes in the same way allowing unit Mos up to 80 to be displayed 6 Sample displays of the unit Nos of connected indoor units Display of unit No 1 m Display of unit Nos 1 and 2 P _ a Display of unit Nos 1 2 and 3 t S m Display of unit Mos 1 2 3 and 4 p AO The colon displ
41. sistance kQ 25 C 5 0 4 Drain pump Model PC 309564003 Rating Voltage 220 240V 50Hz Input 14W Flow rate 0 4 l min Safety float switch 2222273 Contact rating 230V AC DC 0 5A 2 DIMENSIONAL DATA 575 E SUSPENSION 506 70 575 BRACKET PRU BRACKET Pa Mr irae CEILING 183 SSS ee 00 FRESH AIR INTAKE SIDE SUSPENSION BRACKET FLECTRICAL COMPONENT Box SIDE A m SUSPENS OM BOLT REFRIGERANT TUBING SIDE CEILING NUTS AND WASHERS FRESH AIR INTAKE PORT REFRIGERANT TUBING SIDE 1 0 18 5 CONDENSATE DRAIN PIPING REFRIGERANT TUBING JOINT Pes MARROW TUBE 270 PRESPLITTING WIDE TUBE 3 ELECTRICAL DATA 3 1 Electric Wiring Diagram FAM MOTOR I POWER Li sg om H Lit J cc ui om DD ED B 0 So e T 5 DRAIN cc amp m See a 4 51 7 H PUMP wo ae YEL J id HE 2 BRN z 5 5 5 4 1 z uc 154 IT CE CE u Wo ro rae i 8 7E D m HA a AHSEN Esl 4 I WHT GUT CONTROLLER HISTIamIE 5 BLK BLK BLK BLK BLK RECEIVER ASSY terminal board
42. ter a certain 2 Compressor wiring trouble period of time following missing phase compressor start Compressor Inverter stops after alarm is Recovery ai restart 1 Check power voltage AC breakdown detected 200 V 20 V Starts to operate but 2 Refrigerant cycle overload operating frequency operation drops ancl 3 Check AC current detection compressor stops circuit Inverter control PCB Inverter stops after alarm is Recovery at restart Position detection circuit is position detection detected activated even when the circuit trouble compressor 3P connector is disconnected and the compressor operated Heplace the inverter control PCB F04 Disconnection open Sensor detection trouble Automatic recovery 1 Check discharge temp circuit or shorn circuit 90 C or higher when 15 sensor TD in discharge temp minutes have elapsed after 2 Check outdoor unit control sensor TD compressor stopped PCB Open circuit 6 Disconnection open Open circuit or short circuit Automatic recovery 1 Check outdoor heat circuit or short circuit exchanger temp sensor C1 in outdoor heat 2 Check outdoor unit control exchanger temp PCB sensor C1 Disconnection open Open circuit or short circuit Automatic recovery 1 Check outdoor heat circuit or short circuit exchanger temp sensor C2 in outdoor heat 2 Check outdoor unit control exchanger temp PCB sensor C2 Fos Disconnection open Open circuit or short circuit
43. the above start stop of the compressor is repeat ed 10 times error count 2 10 alarm P20 occurs At this me operation stops and does not restart If the compressor has stopped because the out door heat exchanger temperature C2 reached 64 C or higher and the temperature remains at 64 C or higher for 30 seconds alarm P20 occurs even when the error count less than 10 At this time operation stops and does not restart 5 6 7 For 30 minutes or longer after the compressor restarts the control value for current release control is reduced to 70 90 Overcurrent protection control 1 If the overcurrent protection circuit detects abnor mal current the compressor is stopped Error count 1 The compressor then restarts after 3 minutes 2 compressor start stop is repeated 4 times error count 4 alarm P26 P29 HO1 count 2 in this case only occurs Operation stops and does not restart Current release value shift control 1 This control is intended to improve compressor reliability by preventing continuous high frequen cy operation under overload conditions when the outdoor air temperature is high and by prevent ing intermittent operation through control for pre vention of high cooling loads 2 The control value for current release control is corrected according to the outdoor air tempera ture Depending on the temperature
44. the control value is lowered to 55 90 for cooling operation and to 85 98 for heating operation Freeze prevention low temperature release control The below control is performed during cooling opera tion including dehumidifying operation using whichever of the indoor heat exchanger temperatures E1 or E2 is lower See the figure below 1 If a temperature in the J area operating fre quency reduction and thermostat OFF area is detected for 6 minutes the compressor operating frequency is reduced The compressor operating frequency is reduced every 30 seconds as long as the temperature remains within this area 2 If the temperature is in the area operating frequency increase prohibit area the compres sor operating frequency is maintained 3 If the temperature is in the H area operating frequency control area and the outdoor air tem perature is less than 32 C the compressor maxi mum operating frequency is limited according to the indoor unit fan speed 4 If the temperature is in the I area normal oper ating area the compressors operate normally 5 If the temperature is continuously in the J area and the compressor operating frequency reaches O then temperature temperature for changing from J area to H area is raised from 5 C to 12 C and operation continues with the thermostat OFF until the temperature reaches the area 13 25 typ
45. the main power board before opening the unit to check or repair electrical parts and wiring Keep your fingers and clothing away from any moving parts Clean up the site after the work remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced e Ventilate the room during the installation or testing the refrigeration system make sure that after the installation no gas leaks are present because this could produce toxic gas and dangerous if in contact with flames or heat sources o Table of Contents SPECIFICATIONS 1 1 Unit specifications 1 2 Major Component specifications 1 3 Other Component specifications DIMENSIONAL DATA ELECTRICAL DATA 3 1 Electric Wiring Diagram 3 2 Control PCB switches and functions PROCESS AND FUNCTIONS 4 1 Control function REPLACING PCB 5 1 Replacing PCB 5 2 How to replace PCB 5 3 How to replace EEPROM with EEPROM included in PCB service pack 9 4 Table of setting SERVICE PROCEDURE 6 1 Meaning of alarm message 6 2 Led indicator messages on outdoor control PCB 6 3 Symptoms and parts to inspect 6 4 Details of alarm messages 6 5 Table of thermistor characteristics OUTDOOR UNIT MAINTENANCE REMOTE CONTROL 7 1 Overwiew 7 2 Functions 7 3 Normal display operations and functions 7 4 Monitoring operations Display of indoor unit and outdoor unit sensor temperatures 7 5 Monitoring the outdoor
46. uding failure to follow the instructions in this document SPECIAL PRECAUTIONS During installation connect before the refrigerant system and then the wiring one proceed in the reverse orden when removing the units REZ when wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY QUALIFIED EXPERIENCED ELECTRICIANS SHOULD ATTEMPT TO WIRE THIS SYSTEM e Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked to ensure the grounding e Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury and death Ground the unit following local electrical codes The Yellow Green wire cannot be used for any connection different from the ground connection Connect all wiring tightly Loose wiring may cause overheating at connection points and a possible fire hazard Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line When transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminium fins on the air conditioner ca
47. unit alarm history Display of outdoor unit alarm history 7 6 Setting modes setting of outdoor unit EEPROM 10 10 11 12 12 15 15 16 17 19 20 20 21 22 23 26 27 2 2 28 31 32 32 1 SPECIFICATIONS 1 1 Unit Specifications CAFP125R5I 220 240V 50Hz Voltage rating 230V Performance Capacity oee catalogue with the requested matching Air circulation High Med Low m h 700 600 500 Controls Temperature controls Microprocessor thermostat Remote Controller Option K70D036Z K70D042Z K70D038Z K70D040Z Fan speed 3 and Auto Airflow direction Auto Remote control Air Filter Washable Sound pressure level high med low 52 49 46 Refrigerant tubing connections Flare type Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 12 7 1 2 Refrigerant R410A Refrigerant control Electronic expansion valve Dimensions amp Weight Dimensions Height Width Depth Ceiling panel Height Width Depth Package dimensions Unit Height Width Depth Volume Ceiling panel Height Width Depth Volume Weight include panel Net Shipping Ceiling panel Net Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE CAFP165 185R5l 220 240V 50Hz Voltage rating 230V Performance Capacity See catalogue with the requested matching Air circulation High Med Low m h 750 630 530 Controls Temperature controls Microprocessor 1 th
48. y hand Does it rotate easily es Outdoor unit fan motor coil resistance is GK ifitis as shown below Disconnect connector CNOO4 and No measure on the plug side 1 Hed white 30 40 White black 30 400 3 Black red 30 400 Yes Motor position detection circuit resis tance is OK if itis as shown below Disconnect connector CN D3 and measure on the plug side 1 Grey yellow 100 or more or ee topen i2 Grey bue 100 or more or ee topen 3 Grey orange 100 or more or ee topen Yes Fan moter is OK outdoor unit Fan motor trouble control PCB has failed Replace Replace Note In the case of a GND circuit failure inside the motor the results of the above check may be OK If operation is not OK after the outdoor unit control PCB has been replaced then replace the outdoor unit fan motor 5 Alarms FOS FO7 Fos F12 Sensor trouble Are connectors CNO20 021 022 023 and 024 TD TO C1 C2 and TS sensors connected correctly to the outdoor unit control Correct the connector connections Are the TD TO C1 C2 and TS sensor resistance characteristics OK Replace the TD TO C1 Ce or TS sensor Refer to 4 Table of Thermistor Characteristics Check the outdoor unit control PO B Replace if PC B has fail
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