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Service Manual

1. e Wired remote controller Note The phrase Wired remote controller in this manual refers only to the PAR 21MAA If you need any information for the other remote controller please refer to either the installation manual or initial setting manual which are included in remote controller s box Display Section Day of Week Sensor indication Shows the current day of the week Displays when the remote controller sensor is used For purposes of this explanation all parts of the display are shown Time Timer Display During actual operation only Shows the current time unless the simple or Auto Off Locked indicator the relevant items will be lit timer is set If the simple or Auto Off timer is set the time to be switched off is shown Indicates that remote controller but tons have been locked Identifies the current operation Shows the operating mode etc Clean The Filter indicator Multilanguage display is available To be displayed on when it is time to 4 clean the filter ae MITSUBISHI ELECTRIC TIME SUN MON TUE WED THU FRI SAT TER 4 f f f e AFTER I T gt P P AFTER OFF Timer indicators ORG
2. With PL cover Remove thr screw with driver on the occasion of setting 2 1 8 54 Knockout hole for Terminal block Detailed Knockout hole for remocon wiring Power supply 208 230V 31 32244 left pipin CIT D Transmission DC 24 30V E one id MA remote controller DC8 7 13V underpipng p 18 92 10 There is not MA remote controller terminal block Knockout hole of Br 892125 i Connection with MA remote controller refers to Note 3 amp remocon wiring 8 4 25 92 45 319832915 Installation space 60mm or more for Z left and left back piping Min55 64 22 3 16 1 3 8 4 5 35 4 holes Installation plate OCH516A 4 411 32 49 holes Note 1 Use M10 or W3 8 screw for installation plate E Note 2 Extension piping side Note 3 case of connecting MA remote controller please 5 MA remote controller cable in anaccssories to the connector E mum z Rettigerart Liquid pi
3. OCH516A afa MITSUBISHI ELECTRIC Qa EREN Ct 712 mE t3 f ul Boo EET ms ONOFF i TEMP 0 O LED x FAN AUTOSTOP MODE VANE AUTOSTART e CHECK VLOUVER h TEST BUN min n 1 SET RESET CLOCK dz display Lights up while the signal is transmitted to the indoor unit when the button is pressed display SET TEMP display indicates the set desired temperature CLOCK display Displays the current time TIMER display Displays when in timer operation or when setting timer i 5 66 t display Displays the order of timer operation 04 D20 display Displays whether timer is on or off button SET TEMPERATURE button sets any desired room temperature TIMER CONTROL buttons AUTO STOP OFF timer when this switch is set the air conditioner will be automatically stopped at the preset time AUTO START ON timer when this switch is set the air conditioner will be automatically started at the preset time h and min buttons Buttons used to set the hour and minute of the current time and timer settings LOUVER button Changes left right airflow direction Not available for this model CLOCK button RESET button SET button
4. INTAKE T 3 BLU 12345678910 ADDRESS RED RED REMOCON RED oui FUSE CN82 BLU 515 rey 250V W14 j swe pan pis Sena O cN5aP A CDS EO 12345678910 1234 WHT 9 RED fohs ts BRANCH ot 1 EB 34 1 e CN35M gt CN53M LED2 LED1 BLU RED PB Notes 1 At servicing for outdoor unit always follow the wiring diagram of outdoor unit 2 In case of using MA remote controller please connect MA remote controller cable in an accessory to the connector 2 Remote controller wire is non polar 3 In case of using M NET please connect to TB5 Transmission line is non polar 4 Symbols used in wiring diagram above are 5 The B of dip sw is the switch position 6 Please set the switch SW5 according to the power supply voltage Set SW5 to 230V side when the power supply is 230 volts When the power supply is 208 volts set SW5 to 208V side lt 1 gt Use Copper Supply Wire LED on indoor board for service terminal block Meaning Function LED1 Main power supply power supply indoor unit 208 230V Power supply for Power supply for MA Remote controller LED2 MA Remo controller on lamp ie li OCH516A connector 5 REFRIGERANT SYSTEM DIAGRAM PKFY PO6NBMU E2 Gas pipe temperature thermistor TH23 Gas pipe Strainer Flare 100mesh
5. 3 Remove the 2 screws of the vane motor Disconnect the relay connector and remove the motor from the shaft 4 Disconnect the vane motor connector CN5V on the indoor controller board 9 REMOVING THE LIQUID PIPE THERMISTOR AND GAS PIPE THERMISTOR 1 Remove the front panel Refer to procedure 2 2 Remove the electrical box cover See Photo 2 3 Remove the water cut See Photo 3 4 Cut the wiring fixed band S See Photo 10 6 Disconnect the connector CN29 CN21 on the indoor controller board OCH516A 27 Remove the liquid pipe thermistor and gas pipe thermistor Photo 10 Heat exchanger Vane motor fixing Vane motor Photo 11 Heat exchanger Electrical box Liquid pipe thermistor Gas pipe thermistor CITY MULTI MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2012 MITSUBISHI ELECTRIC CORPORATION Distributed in Sep 2012 No OCH516 REVISED EDITION A Distributed in Apr 2012 No OCH516 New publication effective Sep 2012 Made in Japan Specifications are subject to change without notice
6. FILTER Cor 2 COa BACK MONTORSET DAY erry 38 0 CHECK TEST FEL gt PAR 21MAA cLock VOPERATIONA 0EM Control modes Control details 1 Thermostat 1 1 Thermostat function Function to prevent restarting for 3 minutes Setting the Dry thermo by the thermostat signal and the room function temperature TH21 Dry thermo ON Room temperature 2 desired temperature 2 F Dry thermo OFF Room temperature 2 desired temperature 3 min passed since starting operation Room temperature Thermostat signal Room temperature T1 T12 83 F 83 F gt T1 2 79 F Over 64 F 79 F gt T1 75 F 75 F gt 1 Less than 64 F Dry thermo OFF 1 2 Freeze prevention control No control function Indoor fan operation controlled depending on the compressor conditions Dry thermo Fan speed notch Excluding the following Note Remote controller setting is not acceptable 3 Vane Same control as COOL operation up down vane change OCH516A 11 6 3 FAN OPERATION lt How to operate gt ae MITSUBISHI ELECTRIC Press POWER ON OFF button BB OH ta EVE Press the operation MODE button to display FAN eS cooec s INICIO lac aes 8 Temp Q ON OFF Cv Opono onorr Sal TS nen DCC a BACK MONITORISE
7. Liquid pipe temperature thermistor TH22 Liquid pipe TETEE Strainer DE Sange nangar 100mesh Linear expansion 4 valve Room temperature thermistor Strainer TH21 100mesh Unit mm inch Service ref PKFY PO6NBMU E2 Item Gas pipe 12 7 1 2 Liquid pipe 46 35 1 4 OCH516A 9 6 MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 6 1 COOL OPERATION a MITSUBISHI ELECTRIC How to operate men HEP UI a EE Press POWER ON OFF button pi p v il GPress the operation MODE button to display COOL d H ol 38 4 O Press the TEMP button to set the desired temperature Q ONOFF NOTE The set temperature changes 2 F when the or 2 button is oC pressed one time Cooling 67 to 87 F Choose MENU oniorr Ts FILTER CG Ga BACK _ MONITORISET DAY 04 CHEK TEST 29 PAR 21MAA CLOCK V OPERATION A CLEAR Control modes Control details Remarks 1 Thermostat 1 1 Thermostat function Function to prevent restarting for 3 minutes function Room temperature 2 desired temperature 2 F Thermo ON e Room temperature desired temperature Thermo OFF 1 2 Anti freezing control Detected condition When the liquid pipe temp TH22 is 32 F or less in 16 minutes from compressors start up anti freezing contr
8. 100 F 3 2kQ thermistor Liquid pipe thermistor TH22 Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ 100 F 3 2kQ Gas pipe thermistor TH23 Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ 100 F 3 2kQ Fuse Indoor controller board FRE 250V 6A Fan motor with thermal fuse MF 4 Pole Output 8W PS4N8 KB Fan motor capacitor C1 1 2uF x 440V Vane motor with limit switch MM MSFBC20 DC12V Linear expansion valve LEV DC12V Stepping motor drive Port 3 2 0 2000pulse Power supply terminal TB2 block L1 L2 GR 250V 20A Transmission terminal block TBS M1 2 S 250V 20A MA remote controller terminal block THIS 1 2 250V 10A 2 3 Sound levels Sound level at anechoic room Low Middle2 Middle1 High Service Ref Sound level dB A PKFY PO6NBMU E2 32 33 35 36 3 3 ft 3 3 ft Measurement location Oe tee te tee ee ae PKFY PO6NBMU E2 Measured in anechoic room External static pressure OPa Power source 208 230V 60Hz ad High speed Low speed 20uPa 8 2 4 NC curve neeo 50 0 45 0 Nes 40 0 mH ncs 35 0 30 0 N 25 0 AL 20 0 NC30 _ audible limit 15 0 F continuous noise NC20 OCTAVE BAND PRESSURE L
9. PLATE Figure 1 Figure 2 When there is removing plate 1 Remove the corner box at right lower side of the indoor unit and remove the removing plate from the corner box See Figure 3 2 Insert the removing plate at the back side of the corner box to remove the indoor unit 3 Remove the hook by pulling the lower side of the indoor unit down as shown in the Figure 1 4 removin late rner hol When there is no removing plate or it cannot be used for gP Corner hole some reason Be careful 1 Remove the front panel oe Ww E 2 Insert the screw driver to the corner hole at both left and Insert adjustment f i right side as shown in the Figure 2 the edge Pull 3 Push it up then pull down the lower side of indoor unit and remove the hook plate with the screw driver Push Down Indoor unit 1 1 2 REMOVING THE FRONT PANEL Before removing the front panel leave the open space at upper side of the vane approximately 2 to 3 cm Grille 1 Remove the 3 screw caps then remove the 3 set screws 7 3 See Photo 1 2 Remove the grille 3 Remove the left side of the front panel then right side 4 After removing the lower side of the front panel a little remove it as pulling the upper side toward you Please pay attention to the nozzle assembly INSTALLING THE FRONT PANEL Front panel Set screws 1 Insert the lower side of the front pane
10. lead wire out from the electrical box Liquid pipe temp m thermistor TH22 3 Indoor power Gas pipe temp thermistor TH23 PHOTOS amp ILLUSTRATIONS Photo 6 Indoor controller board Screw for Linear ground wire expansion valve Fixture for electrical box top board 2 Electrical box Fixture for electrical box bottom Terminal block TB2 Terminal block TB5 7 REMOVING THE LINE FLOW FAN AND THE FAN MOTOR Remove the front panel Refer to procedure 2 Remove the nozzle assembly Refer to procedure 4 Remove the electrical parts box Refer to procedure 6 Remove the fixture while pressing the right side of motor fixture catch See Photo 7 b Remove the left side of the motor fixture 6 Loosen the set screw which fixes the line flow fan to the fan motor then remove the fan motor by sliding it to the right side See Photo 7 7 Pull the left hand side of the heat exchanger toward you See Photo 9 8 Remove the line flow fan 1 2 3 4 Photo 8 Set screw Line flow fan Photo 7 Heat exchanger Fan motor Fixture right Set screw Photo 9 OCH516A 26 OPERATION PROCEDURE PHOTOS amp ILLUSTRATIONS 8 REMOVING THE VANE MOTOR 1 Remove the front panel Refer to procedure 2 2 Remove the screw of the electrical parts box cover and remove the cover
11. of FUNCTION The indicator comes on if the corre Lfd ONO sponding timer is set Centrally Controlled indicator _Ii_IIL1 F C E MV WEEKLY i i LINILI RR SIMPLE Indicates that operation from the ENAN ONLY1Hr 2 401 AUTO remote controller has been prohib CETT ited by a master controller Fan Speed indicator Shows the selected fan speed rti Air Direction indica Temperature apay Ventilation indicator or ows the room temperature The room CUT TU Ti d 5 Appears when the unit is running in Tne EIS Indicator The indicator shows the direc temperature display range is 46 102 F Vohiiation mode Indicates that the timer is off tion of the outcoming airflow The display blinks if the temperature is less than 46 F or 102 F or more One Hour Only indicator Louver display Displays if the airflow is set to Low or downward during COOL Indicates the action of the swing louver Temperature Setting or DRY mode Operation varies Does not appear if the louver is not Shows the target temperature according to model running The indicator goes off in one hour at which time the airflow direction Power On indicator also changes Indicates that the power is on Operation Section ON OFF button Fan Speed button Temperature setting buttons Cv Down
12. responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions 1 PART NAMES AND FUNCTIONS e Indoor unit Air intake Filter Grille Louver Air outlet OCH516A 2 e Wireless remote controller CHECK STRA display CHECK and TEST RUN display indicate that the unit is being checked or test run MODELSELECT display Blinks when model is selected mA Ot display OPERATION MODE display Operation mode display indicates which operation mode is in effect W display The vertical direction of air flow is indicated h display FAN SPEED display indicates which fan speed has been selected ON OFF button The unit is turned ON and OFF alternately each time the button is pressed FAN SPEED SELECT button Used to change the fan speed MODE SELECT button Used to switch the operation mode between cooling drying fan heating and auto mode In case the outdoor unit is cool only type the heating and auto mode are not available CHECK TEST RUN button Only press this button to perform an inspection check or test operation Do not use it for normal operation VANE CONTROL button Used to change the air flow direction
13. 22 Control signal A NYO wa a 12VDC pulse input D BNO a r f Operation indicator 12VDC Malfunction indicator 12VDC CN20 Room temperature thermistor TH21 CN52 Remote indication Status lamp 12VDC External heater 12VDC SW1 5 OFF Thermostat ON SW1 5 ON Cooling Dry status lamp CN3A Connected to the MA Remote controller 12VDC Heating status lamp Between to 8 7 13V DC 12VDC Pin CN41 Connector HA terminal A SW3 Mode selection CN32 Connector Remote switch J41 J42 Wireless remote controller Pair No setting CN42 Connected to the Sw2 address board CN43 Capacity setting LED2 Power supply for MA Remote controller CN35M CN53M Connected to the indoor Connected to the indoor power board CN53P power board CN35P Between to 24 30V DC non polat Between to 12 5 13 7V DC Pin Between to 11 5 12 7V DC Pin OCH516A 20 7 3 1 Indoor controller board PKFY PO6NBMU E2 CN60 CN5V Linear expansion Vane motor output CN81 CN90 CN29 valve output LEV MV Connected to the Connected to the wireless Pipe temperature 12VDC pulse output 12VDC pulse output address board CN82 remote controller board W B thermistor Gas TH23 CN21 Pipe temperature thermistor Liquid TH22 CN51 Ce
14. 3 Disconnect the connector CN5V on the indoor controller board 4 After unhook the right side of the corner box press the upper left side and remove the corner box 5 Remove the nozzle assembly from the fixture See Photo 4 6 Remove the drain hose Heat exchanger Electrical box Nozzle assembly Fixture for Drain hose nozzle assembly 5 REMOVING THE FAN GUARD 1 Remove the nozzle assembly and drain hose Refer to procedure 4 2 Remove the screws of fan guard 3 Remove the fan guard Photo 5 Screws for fan guard OCH516A 25 OPERATION PROCEDURE 6 REMOVING THE ELECTRICAL BOX Remove the front panel Refer to procedure 2 Remove the electrical box cover See Photo 2 1 2 3 Remove the water cut See Photo 3 4 Pull the nozzle assembly toward you as opening the catch of the nozzle assembly See Photo 4 5 Disconnect the indoor outdoor transmission wiring of TB5 6 Disconnect the power supply wiring of TB2 7 Disconnect the relay connector of MA remote controller 8 board e CN60 CN5V CN29 CN21 CN90 CN3A 9 10 Remove the ground wire fixing screw 11 12 Push up the upper fixture catch to remove the box then pull the lower fixture and remove it from the box fixture Disconnect the following connector on the indoor controller Disconnect the connector FAN on the indoor power board Pull the disconnected
15. CA Up Timer Menu button Monitor Set button MITSUBISHI ELECTRIC Filter button lt Enter gt button Lo B Teme Test Run button Set Time buttons A L Check button Clear button Mode button Return button y CV Back OMENU ONOFF a CA Ahead BACK MONTORSED DAY CHECK TEST CA Airflow Up Down button Timer On Off button PAR 21MAA CLOCK VOPERATIONA J cem M NS Set Day button Louver button C Operation button To return operation Opening the number cover UN Ventilation button Built in temperature sensor A Operation button To go to next operation number OCH516A 4 2 SPECIFICATION 2 1 Specifications Service Ref PKFY PO6NBMU E2 Power source 1 phase 208 230V 60Hz Cooling capacity kW 1 8 Nominal Btu h 6 000 Heating capacity 2 Nominal 6 700 External finish External dimension H x W x D 295 x 815 x 225 i 11 5 8 x 32 1 8 x 8 7 8 Net weight 10 22 i Type x Quantity Line flow fan x 1 Direct driven by motor Airflow rate 4 9 5 2 5 6 5 9 Low Mid2 Mid1 High 82 87 93 98 170 180 200 210 Heat exchanger Cross fin Aluminu
16. Changes for the Better MITSUBISHI ELECTRIC SPLIT TYPE HEAT PUMP AIR CONDITIONERS September 2012 No OCH516 REVISED EDITION A TECHNICAL amp SERVICE MANUAL CITY MULTI Series Wall Mounted R410A R22 Indoor unit Revision Model names Service Ref 7 2 Function of Dip PKFY PO6NBMU E2 switch has been modified P KFY P06 N B M U E2 Some descriptions have been modified Please void OCH516 Note This manual describes only service data of the indoor units RoHS compliant products have G mark on the spec name plate CONTENTS 1 PART NAMES AND FUNCTIONS 2 Z A 2 SPECIFICATION e ee 5 3 OUTLINES AND DIMENSIONS 7 4 WIRING DIAGRAM 8 5 REFRIGERANT SYSTEM DIAGRAM 9 pu 6 MICROPROCESSOR CONTROL 10 SENS 7 TROUBLESHOOTING 15 INDOOR UNIT N 8 DISASSEMBLY PROCEDURE 24 Model name 800 PARTS CATALOG OCB516 CITY MULTI Intertek 33223 Use the specified refrigerant only 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
17. EVEL dB 0dB 63 125 250 500 1k 2k 4 8k OCTAVE BAND CENTER FREQUENCIES Hz OCH516A 6 3 OUTLINES AND DIMENSIONS PKFY PO6NBMU E2 30 13 16 783 Air intake E 288 Receiver Unit inch mm mergency operation Emergency operation n a 32 3 32 815 8 DEFROST STAND BY lamp Operation lamp 25 3 16 640 41 20115 AM 8 55 64 225 Air intake 431601067 Direction 1 8 3 i f i N M _ installation plate A Le 8 Power supply Transmission Terminal block 8 i 7t wj Address board Air intake q 2 Direction nere LN D g Y d 25 3 6 640 Airintake T A S O 21 27 3 8 695 _ Air intake 23860 Tli air outlet j Address board Air outlet LOU i 26 31 32 660 pipe total 29 29 32 760 4111820110 Address board a Detailed ress setting digit iled fi E Gas pipe Mode selection wa AB 17 28 32 450 B Detailed figure dwa ABC 20 25 32 520 Liquid pipe 4 9 te 116 3 Address board is protected Knockout hole Knockout hole of tight piping Bp
18. F Thermo ON Room temperature lt desired temperature Thermo OFF By the remote controller setting switch of 4 speeds Type Fan speed notch 4 speeds type Low Mid2 Mid1 High Give priority to under mentioned controlled mode 2 1 Hot adjust mode 2 2 Residual heat exclusion mode 2 3 Thermo OFF mode When the compressor off by the thermostat 2 4 Cool air prevention mode Defrosting mode 2 1 Hot adjust mode The fan controller becomes the hot adjuster mode for the following conditions When starting the HEAT operation When the thermostat function changes from OFF to ON When release the HEAT defrosting operation i Hot adjust mode 1 1 STAND BY will be displayed during the hot adjust mode Set fan speed by the remote controller Low Extra Low A ee B A Hot adjust mode starts B 5 minutes have passed since the condition A or the indoor liquid pipe temperature turned 95 F or more C 2 minutes have passed since the condition B Terminating the hot adjust mode 2 2 Residual heat exclusion mode When the condition changes the auxiliary heater ON to OFF thermostat or operation stop etc the indoor fan operates in Low mode for 1 minute This control is same for the model without auxiliary heater To be continued on the next page 13 From the preceding page Control modes Control details 2 Fan 2 3 Thermo OFF mode When the thermostat function cha
19. OOR CONTROLLER BOARD MF FAN MOTOR A B ADDRESS BOARD CN32 CONNECTOR REMOTE SWITCH MV VANE MOTOR 5 1 SWITCH MODE SELECTION CN51 CENTRALLY CONTROL LEV LINEAR EXPANSION VALVE SW5 VOLTAGE SELECTION CN52 REMOTE INDICATION TB2 TERMINAL POWER SUPPLY SW11 ADDRESS SETTING 1s DIGIT EXTERNAL HEATER TB5 BLOCK TRANSMISSION SW12 ADDRESS SETTING 10ths DIGIT sw2 SWITCH CAPACITY CODE TH21 THERMISTOR ROOM TEMP DETECTION SW14 BRANCH No SW3 MODE SELECTION 32 F 15kO 77 F 5 4kQ W B WIRELESS REMOTE CONTROLLER BOARD P B INDOOR POWER BOARD TH22 PIPE TEMP DETECTION LIQUID RU RECEVING UNIT C1 CAPACITOR FAN MOTOR S2 F 15ko 77 F 5 4kQ BZ BUZZER F C FAN PHASE CONTROL TH23 PIPE TEMP DETECTION GAS LED1 LED OPERATION INDICATOR GREEN FUSE FUSE 6A 250V 32 F 15kQ 77 F 5 4kQ LED2 LED PREPARATION FOR HEATING ORANGE 5 1 EMERGENCY OPERATION HEAT Sw2 EMERGENCY OPERATION COOL TO NEX TO OUTDOOR UNIT INDOOR UNIT TO MA REMOTE BC CONTROLLER CONTROLLER M NET REMOTE CONTROLLER tt DC8 7 13V DC24 30V 21 11 os os L1H 4 W B a ETT M1 M2 TBS 1 BOX J 1 2 CL SW SW 9 1 2 1 tot oi ie a 2 h MEUSE MF gt gt e 1 LL 16A RU aja bg LED1 LED2 2 Ci zu BREAKER P AB BLK z Hu gg 99 N 4 FAN cnn bo POWER SUPPLY 208V 230V RED P4 1 2 GANT 4 Sp fi 3 N 208 230V 60Hz ADDRESS 9 00000059 CN2M oj 41 onei 9 oua 6 M NET x De 8 ADDRESS ADDRESS
20. T DAY rfe med TEST vo CA gt PAR 21MAA CLOCK VOPERATIONA CLEAR Control modes Control details Remarks Set by remote controller Fan speed notch 4 speeds type Low Mid2 Mid1 High 2 Vane Same as the control performed during the COOL operation but with no restriction Same control up down vane change on the vane s downward blow setting as COOL operation OCH516A 12 6 4 HEAT OPERATION lt How to operate gt Press POWER ON OFF button MITSUBISHI ELECTRIC Press the operation MODE button to display HEAT DO EE G Press the TEMP button to set the desired temperature g PBBP NOTE The set temperature changes 2 F when the G button is DANOG S320 388 a uite pressed one time Heating 63 to 83 F fi temp O ON OFF IA ir EINE Display in HEAT operation BACK MONITORSSET DAY 2 DEFROST Cre AMI Di The DEFROST symbol is only displayed during the defrost operation PAR 21MAA CLOCK VOPERATIONA CLEAR STAN DBY The STANDBY symbol is only displayed during the hot adjust mode Control modes 1 Thermostat function OCH516A Control details 1 1 Thermostat function Function to prevent restarting for 3 minutes Room temperature lt desired temperature 2
21. hermo OFF Setting air flow x1 Depends on Swi 7 OFF ON Setting air flow ON ON Stop Auto restart function Effective Not effective X2 It is impossible to intake the fresh air gt co 10 Power ON OFF by breaker Effective Not effective x3 SW1 5 has different function for the listed models The standard function of SW1 5 for the listed models are different from that for other models When SW1 5 is OFF even with the free contact function of TG 2000 the external heater signal function of the remote display cannot be changed When the free contact function of TG 2000 is used set SW1 5 to ON together with SW1 9 and SW1 10 Operation by switch Effective timing Switch Function Remarks Indoor controller board Models SW2 Before ON power P06 orr I supply 123 4 ON Heat pump Cool only Cooling only Heat pump Indoor controller board Louver Initial setting Vane Available Not available ON OFF Vane swing 12345678910 Under suspension 1 At cooling mode each angle can be used only 1 hour 2 Please do not use SW3 9 10 as trouble might be caused by the usage condition SW3 Function selection Vane horizontal angle Second setting 3 First setting Vane cooling limit angle setting 1 Horizontal angle Down B C Changing the opening of
22. l under the vane Vane 2 Set the upper side of the front panel See Figure 4 3 Set the lower side of the front panel then fix it with the screws Figure 4 4 Press the area indicated as arrow sign and set it to the air conditioner unit 5 Attach the screw caps OCH516A 24 OPERATION PROCEDURE 3 REMOVING THE INDOOR CONTROLLER BOARD AND INDOOR POWER BOARD 1 Remove the front panel Refer to procedure 2 2 Remove the electrical box cover screw 4 x 10 See Photo 2 INDOOR CONTROLLER BOARD 1 Disconnect the following connectors on the indoor controller board connector in front of e CN60 CN5V CN90 CN29 CN21 e CN42 CN81 CN3A CN20 2 Pull out the indoor controller board toward you then disconnect the rest of connectors e CN53M CN35M See Photo 3 INDOOR POWER BOARD 1 Disconnect the following connectors on the indoor power PHOTOS amp ILLUSTRATIONS Photo 2 cover electrical box cover Electrical box Photo 3 Indoor controller board Water cut board fixing screw EK Indoor power e FAN CN53P CN35P CN2M CND board 2 Remove the earth wire for TAB1 3 Pull out the indoor power board toward you See Photo 3 W amp y Electrical box Water cut Room temperature thermistor TH21 4 REMOVING THE NOZZLE ASSEMBLY AND DRAIN HOSE Photo 4 1 Remove the front panel Refer to procedure 2 2 Remove the electrical box cover See Photo 2
23. letely and if there is any leaking detecting temperature of Linear the thermistor will go lower If the detected expansion temperature is much lower than the tem valve perature indicated in the remote controller it means the valve is not closed all the way It is not necessary to exchange the linear expansion valve if the leakage is small and not affecting normal operation Check the color of lead wire and missing terminal of the con nector If large amount of refriger ant is leaked exchange the linear expansion valve Disconnect the connector at the controller board then check the continuity 17 7 2 Function of Dip switch PKFY PO6NBMU E2 Operation by switch Effective ON OFF timing Function Remarks Thermistor lt Room temperature gt Built in remote controller Indoor unit Address board Filter clogging detection Provide Not provide Initial setting ON OFF Fresh air intake x2 Not effective Not effective 12345678910 Remote indication e Inf TQ Under CN52 2 output signal Thermo ON signal indication External heater signal 3 suspension NOTE 1 Filter cleaning sign 2 500 hr 100 hr SW1 Mode selection ges Thermo ON operation at Humidifier control Fan operation at Heating mode h ating mode SW1 7 SW1 8 Fan speed OFF OFF Extra low Air flow set in case of heat LOW 1 Extra low 1 ON OFF Low t
24. linear expansion valve i i 3 Second setting is the same Heating 4 degree 4 C up Not effective Effective as first setting Effective Not effective jc m Target superheat setting x2 eo Tartget subcool setting x2 OCH516A 18 Operation by switch Effective timing Remarks Rotary Switch swi2 Swit ew len How to set addresses Example If address is 3 remain SW12 10 1 for over 10 at 0 and match SW11 for 1 to 9 with 3 T Co 9 c SW14 No Setting Rotary switch How to set branch numbers SW14 Series R2 only Match the indoor unit s refrigerant pipe with the BC controller s end connection number Remain other than series R2 at 0 Before power Supply ON Address board Initial setting SW12 SWhl1 NZ 97 v o ANS E Co 9 G6 9 G6 Address board Initial setting SW14 J41 J42 Wireless remote controller Pair No OCH516A To operate each indoor unit by each remote controller when installed 2 indoor units or more are near Pair No setting is necessary Pair No setting is available with the 4 patterns Setting patterns A to D Make setting for J41 J42 of indoor controller board and the Pair No of wireless remote controller You may not set it when operating it by one remote controller Q Setting for indoor uni
25. m fin and copper tube Noise level Low Mid2 Mid1 High dB lt A gt measured in anechoic room Insulation material Air filter Protection device Refrigerant control device 32 33 35 36 Connectable outdoor unit R410A R22 CITY MULTI Diameter of Liquid 410 mm in 26 35 01 4 Flare refrigerant pipe R22 06 35 91 4 Flare R410A mm in 012 7 91 2 Flare R22 012 7 91 2 Flare Field drain pipe size 1 0 16mm 5 8 Standard Installation Manual Instruction Book attachment MA remote controller cable Optional parts External heater adapter PAC SA88HA E Remarks Installation Details on foundation work insulation work electrical wiring power source switch and other items shall be referred to the Installation Manual 1 Nominal cooling conditions 2 Nominal heating conditions Indoor 80 FDB 67 FWB 26 7 CDB 19 4 CWB 70 FDB 21 CDB Se cin TD Outdoor 95 FDB 35 CDB 47 FDB 43 FWB 8 3 CDB 6 1 CWB c m m min x 35 31 Pipe length 25 ft 7 6 m 25 ft 7 6 m Ib kg 0 4536 Level difference 0 ft 0 0 ft 0 m Gas Above specification data is Due to continuing improvement above specification may be subject to change without notice subject to rounding variation OCH516A 5 2 2 Electrical parts specifications Service Ref Symbol PKFY PO6NBMU E2 Parts name Room temperature Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ
26. nges to OFF the indoor fan operates in Extra low 2 4 Heat defrosting mode The indoor fan stops 3 Vane control 1 Initial setting OFF HEAT last setting Up down vane When changing the mode from exception of HEAT to HEAT operation change Downward C 2 Vane position Horizontal Downward A Downward B Downward 1 3 Restriction of vane position The vane is horizontally fixed for the following modes The control by the remote controller is temporally invalidated and control by the unit Thermo OFF Hot adjust Extra low mode Heat defrost mode 6 5 AUTO OPERATION AUTOMATIC COOL HEAT CHANGE OVER OPERATION How to operate QPress POWER ON OFF button Press the operation MODE button to display AUTO GPress the TEMP button to set the desired temperature curn 352 o BSE al NOTE The set temperature changes 2 F when the C2 button is SPORT pressed one time Automatic 67 to 83 F MCE oC Opoto OMENU Dono Ful fs FILTER 2 CO Ou BACK MONITORSET DAY ere 04 CHEK TEST Cv CD C0 PAR 21MAA CLOCK VOPERATION A CLEAR Control modes Control details 1 Initial value of HEAT mode for room temperature Desired temperature operation mode COOL mode for room temperature Desired temperature 2 Mode change 1 HEAT mode COOL mode Room
27. ntrally control Control signal 12VDC pulse input CD Operation indicator 12VDC Malfunction indicator 12VDC CN20 Room temperature CN52 thermistor TH21 Remote indication Status lamp 12VDC External heater 12VDC SW1 5 OFF Thermostat ON SW1 5 ON Cooling Dry status lamp CN3A Connected to the MA Remote controller Between to 8 7 13V DC 12VDC Pin Heating status lamp 12VDC CN41 Connector SW3 HA terminal A Mode selection CN32 Connector J41 J42 Remote switch Wireless remote controller Pair No setting CN42 Connected to the address board CN43 sw2 Capacity setting LED2 Power supply for MA Remote controller CN35M CN53M Connected to the indoor Connected to the indoor power board CN53P power board CN35P Between to 24 30V DC non polat Between to 12 5 13 7V DC Pin 4 Between to 11 5 12 7V DC Pin OCH516A 24 7 3 2 Indoor power board PKFY PO6NBMU E2 CN35P Connected to the indoor controller board CN35M CN53P Connected to the indoor controller board CN53M Between to 24 30V DC non polar Between to 12 5 13 7V DC Pin Between to 11 5 12 7V DC LED1 Main power supply Indoor unit 208 230V CND FAN Power supply for Fan motor output MF indoor controller board Between D t
28. o 208 230V AC CN2M Connected to the terminal block TB5 M NET transmission connecting wire 24 30V DC non polar FUSE 6A 250V RG00B432 OCH516A 22 7 3 2 Indoor power board CND PKFY PO6NBMU E2 EX Power supply for F t tput MF indoor controller board an motor output MF Between to 208 230V AC TEE CN2M i O Connected to the terminal block TB5 M NET transmission connecting wire 24 30V DC non polar Lx cnasp S R919 CN35P DA422 Connected to the indoor controller board CN35M IEC127 FUSE 6 3A UL FUSE 6A 250V CN53P Connected to the indoor controller board CN53M Between to 24 30V DC non polar Between to 12 5 13 7V DC Pin Between to 11 5 12 7V DC Pin a ae LED1 Main power supply Indoor unit 208 230V O Ofo 12 1 507 CAUTION iE SE 7 3 3 Address board PKFY PO6NBMU E2 220V o 301 240V lo Case 1230V m ME Swi Function setting 0000000 O Swit SW14 Address setting Address setting Branch No 10ths DIGIT 1s DIGIT OCH516A 23 FUSE 6A 250V 8 DISASSEMBLY PROCEDURE PKFY PO6NBMU E2 Be careful when removing heavy parts OPERATION PROCEDURE PHOTOS amp ILLUSTRATIONS 1 REMOVING THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATION
29. oints Countermeasures Exchange the indoor con troller board at drive circuit failure Disconnect the connector on the controller board then con nect LED for checking Operation circuit failure of the micro processor 1kO LED When power is turned on pulse signals will be output for 10 seconds There must be some defects in the operation circuit if the LED does not light while the signals are output or keeps lighting even after the signals stop Motor will idle and make a ticking noise when the motor is Exchange the linear expan Linear expansion valve mechanism is locked Short or breakage of the motor coil of the linear expansion valve operated while the linear expansion valve is locked This ticking sound is the sign of the abnormality Measure the resistance between each coil white red yellow brown orange red blue brown using a tester It is normal if the resistance is in the range of 2000 10 sion valve Exchange the linear expan sion valve Valve does not close completely Wrong connection of the connector or contact failure To check the linear expansion valve operate the indoor unit in fan mode and at the same time operate other indoor units in cooling mode then check the pipe temperature liquid pipe temperature of the indoor unit by the outdoor multi controller board operation monitor During fan operation linear expan sion valve is closed comp
30. ol starts and the thermo OFF Released condition The timer which prevents reactivating is set for 3 minutes and anti freezing control is cancelled when any one of the following conditions is satisfied Liquid pipe temp TH22 turns 50 F or above The condition of the thermo OFF has become complete by thermostat etc The operation modes became mode other than COOL The operation stopped By the remote controller setting switch of 4 speeds Type Fan speed notch 4 speeds type Low Mid2 Mid1 High 3 Vane 1 Initial setting Start at COOL mode and horizontal vane ONLY 1 Hr up down vane change 2 Vane position appears on the Horizontal Downward A Downward B Downward C wired remote controller 3 Restriction of the downward vane setting When setting the downward vane A B or C in Mid or Low of the fan speed notch the vane changes to horizontal position after 1 hour have passed OCH516A 10 6 2 DRY OPERATION ate MITSUBISHI ELECTRIC lt How to operate gt me Go ET eae Press POWER ON OFF button GPress the operation MODE button to display DRY Press the TEMP button to set the desired temperature NOTE The set temperature changes 2 F when the Gor button is EC ETT WEEKLY Sera es 44 auto OFF ON OFF pressed one time Dry 67 to 87 F mpage OMENU oniorr Vul
31. pe 1 4F 46 35 piping Gas pipe 1 2F 912 7 5 ZZ Drain pipe 2 9 16 516 I D Min25 32 20 7 2 9116 618 Min3 35 6 90 Installation plate balance point hole Details of installation plate 6 1 4 159 Sp RSS 6 5 8 168 5 1 4 133 41 2308193 4 13 16 122 5 I 4 4 29 3 3 27 32 97 5 i zt 4 11 32 110 3 11 32 85 gt pt 3 16x1 15 32 4 x37 4 holes cies RI pss 3 16x1 9 16 4 5440 4 holes 1 718 47 5 MT L 1 T2885 7i8 22 LIS 1 13841 19 32 15 o EP 27 5 s Y 1 9 16 40 A T Hn X a720 4 _ MER v1 Y 3 1168 4 1 32 102 5 as 4716111 4 718 124 lt 5 1 32 128 gt 8 05 8284 3 holes amp Knock of hole oS 12 41 8 42 8 holes 87 d3 16 95 1 holes 4 WIRING DIAGRAM PKFY PO6NBMU E2 LEGEND SYMBOL NAME SYMBOL NAME SYMBOL NAME LB IND
32. t Cut jumper wire J41 J42 on the indoor controller board according to the table below Wireless remote controller pair number Setting operation 1 Press the SET button using a pointed implement Check that the remote controller s display has stopped before continuing MODEL SELECT flashes and the model No 3 digits appears steadily lit Press the MINUTE button twice The pair number appears flashing Press the temperature buttons to select the pair number to set Press the SET button using a pointed implement The set pair number is displayed steadily lit for 3 seconds then disappears Indoor controller jumper wire J41 Pair No of wireless Setting pattern remote controllerx Initial setting x Pair No 4 9 of wireless remote controller is setting pattern D 19 Under operation or suspension lt lnitial setting gt Pattern A VANE LOUVER EL Minute button 7 3 TEST POINT DIAGRAM 7 3 1 Indoor controller board PKFY PO6NBMU E2 CN60 CN5V Linear expansion Vane motor output CN81 CN90 CN29 valve output LEV MV Connected to the Connected to the wireless Pipe temperature 12VDC pulse output 12VDC pulse output address board CN82 remote controller board W B thermistor Gas TH23 CN21 CN51 Pipe temperature Centrally control thermistor Liquid TH
33. temperature 2 Desired temperature 3 F or 3 min has passed 2 COOL mode HEAT mode Room temperature 2 Desired temperature 3 F or 3 min has passed 3 COOL mode Same control as cool operation 4 HEAT Same control as heat operation PF OCH516A 14 7 TROUBLESHOOTING 7 1 HOW TO CHECK THE PARTS PKFY PO6NBMU E2 Parts name Check points Room temperature thermistor TH21 Liquid pipe temperature thermistor TH22 Gas pipe temperature thermistor TH23 Disconnect the connector then measure the resistance with a tester At the ambient temperature 50 F 86 F Normal Abnormal 4 3kQ 9 6kQ Open or short Refer to the next page for the details Vane motor MV orange OQ White Red Yellow Blue Connect pin No Measure the resistance between the terminals with a tester At the ambient temperature 77 F Normal Normal Abnormal O 0 Q amp Red White Red Blue Red Orange Red Yellow Open or short 4000 7 White Re 1 4 16 Measure the resistance between the terminals with a tester At the ambient temperature 68 F Normal Abnormal White Black 3130 8 Red Black 1080 8 Open short Linear expansion valve LEV CN60 White Yellow OCH516A Disconnect the connector then measure the resistance
34. value with a tester Coil temperature 68 F Normal Abnormal 1 5 2 6 3 5 4 6 White Red Yellow Brown Orange Red Blue Brown Open or short 2002 10 15 7 1 1 Thermistor lt Thermistor for lower temperature gt lt Thermistor characteristic graph gt Hs Thermistor for Room temperature thermistor TH21 lower temperature Liquid pipe temperature thermistor TH22 Gas pipe temperature thermistor TH23 40 Thermistor Ro 15kQ 3 Fixed number of B 3480 2 d Rt 15exp 3480 L _1_ 273 t 32 1 8 273 20 30 15 8kO 50 9 6kO 70 F 6 0 80 4 8kQ 90 3 9kO 100 F 3 2kO m 0 20 40 60 80 100 120 Temperature F 7 1 2 Liner expansion valve Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal from the indoor controller board Valve position can be changed in proportion to the number of pulse signals Connection between the indoor controller board and the linear expansion valve Controller board DC12V Linear expansion valve Brown 6 pcm ee cq Y 4 Blue Reg el Drive circuit M Q0 6 Brown 94 Blug o lt J Yellow ANS oc i f 5 2 Y 1 3 M1 o2 Yellow pe ec White Red Orange i 2 1 White P
35. w 01 412 T 1 P d EA Connector CN60 OCH516A 16 lt Output pulse signal and the valve operation gt Output Output Closing avalve 152 53 4 1 Phase 1 2 3 4 Opening 4 3 2 1 4 The output pulse shifts in above order Al ON OFF OFF ON 2 ON ON OFF OFF pod i i TE When linear expansion valve operation stops all output phase 3 OFF become OFF p4 OFF OFF ON ON At phase interruption or when phase does not shift in order motor does not rotate smoothly and motor will lock and vibrate Linear expansion valve operation M When the switch is turned on 2200 pulse closing valve signal will Open 4 be sent till it goes to point amp in order to define the valve position On When the valve moves smoothly there is no sound or vibration occurring from the linear expansion valves however when the ES pulse number moves from to or when the valve is locked E more sound can be heard than in a normal situation Sound can be detected by placing the ear against the screw driver handle while putting the screw driver tip to the linear expansion 2 valve a e S A Outdoor unit R410A model 1400 pulse Outdoor unit R22 model 2000 pulse Opening a valve all the way eee N Pulse on d Extra tightening 200 800 pulse amp Trouble shooting OCH516A Symptom Check p

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