Mitsubishi Electric Mr.Slim PUZ-HA42NKA Service Manual Download Page 56

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Brief Check of POWER MODULE

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Summary of Contents for Mr.Slim PUZ-HA42NKA

Page 1: ...16 10 TROUBLESHOOTING 18 11 EASY MAINTENANCE FUNCTION 71 12 FUNCTION SETTING 74 13 MONITORING THE OPERATION DATABYTHE REMOTE CONTROLLER 82 14 DISASSEMBLY PROCEDURE 92 No OCH567 R410A August 2014 Note 7KLV PDQXDO GHVFULEHV VHU YLFH GDWD RI WKH RXWGRRU XQLWV RQO 5R 6 FRPSOLDQW SURGXFWV KDYH PDUN RQ WKH VSHF QDPH SODWH PUZ HA42NKA PARTS CATALOG OCB567 Model Name Service Ref PUZ HA42NKA 63 7 7 3 7 380...

Page 2: ...IRUH WKH ZRUN LQYROYLQJ WKH HOHFWULF SDUWV Precautions during the repair service R QRW SHUIRUP WKH ZRUN LQYROYLQJ WKH HOHFWULF SDUWV ZLWK ZHW KDQGV R QRW SRXU ZDWHU LQWR WKH HOHFWULF SDUWV R QRW WRXFK WKH UHIULJHUDQW R QRW WRXFK WKH KRW RU FROG DUHDV LQ WKH UHIULJHUDWLQJ F FOH KHQ WKH UHSDLU RU WKH LQVSHFWLRQ RI WKH FLUFXLW QHHGV WR EH GRQH ZLWKRXW WXUQLQJ RII WKH SRZHU H HUFLVH JUHDW FDXWLRQ QRW ...

Page 3: ... into refrigerant cycle and that can cause deterioration of refrigerant oil etc Use the following tools specifically designed for use with R410A refrigerant The following tools are necessary to use R410A refrigerant Handle tools with care If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Do not use a charging cylind...

Page 4: ...QW F OLQGHU Â 2QO IRU 5 Â 7RS RI F OLQGHU 3LQN Â OLQGHU ZLWK V SKRQ 8 5HIULJHUDQW UHFRYHU HTXLSPHQW 1 Cautions for service 1 Perform service after recovering the refrigerant left in unit completely 2 Do not release refrigerant in the air 3 After completing service charge the cycle with specified amount of refrigerant 4 When performing service install a filter drier simultaneously Be sure to use a ...

Page 5: ...s in mm R410A R22 1 4 3 8 1 2 5 8 3 4 6 35 9 52 12 70 15 88 19 05 43 64 17 0 7 8 22 0 1 3 64 26 0 1 9 64 29 0 17 0 22 0 24 0 27 0 36 0 Nominal dimensions in Flare nut dimensions Outside diameter mm Dimension B Unit in mm R410A R22 Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Applied oil Safety charger Charge valve Vacuum pump Flare tool Bender Pi...

Page 6: ... FRQWURO WKH RSWLPDO UHIULJHUDQW OHYHO UHJDUGOHVV RI WKH OHQJWK PD LPXP IW P DQG PLQLPXP IW P RI SLSLQJ 7KH DGGLWLRQDO UHIULJHUDQW FKDUJ LQJ ZRUN GXULQJ LQVWDOODWLRQ RIWHQ FDXVHV SUREOHPV W LV FRPSOHWHO HOLPLQDWHG E FKDUJHOVV V VWHP 7KLV XQLTXH V VWHP LPSURYHV WKH TXDOLW DQG UHOLDELOLW RI WKH ZRUN GRQH W DOVR KHOSV WR VSHHG XS WKH LQVWDOODWLRQ WLPH PUZ HA42NKA Outdoor W B temp Heating capacity 13 ...

Page 7: ...min 94 CFM 3 320 Sound level Cooling dB 49 Heating dB 51 Protection devices HP switch LP switch Discharge thermo Comp surface thermo Dimension W mm 1050 D mm 330 30 H mm 1 338 W in 41 6 16 D in 13 1 3 16 H in 52 11 16 Weight kg lb Refrigerant Charged kg 6 0 R410A lb 13 4 Control Linear expansion valve Oil Model Ether FVC68D Charged L 1 7 oz 57 Refrigerant Pipe size OD mm 9 52 piping Liquid in 3 8 ...

Page 8: ...0 kg For pipes longer than 100 ft additional charge is required Service Ref Compressor model Winding Registance U V U W W V at 68 F 20 C PUZ HA42NKA ANB42FJTMT 0 188 0 188 0 188 5 1 REFILLING REFRIGERANT CHARGE R410A oz kg 5 2 COMPRESSOR TECHNICAL DATA 5 DATA 5 3 NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOI...

Page 9: ... temperature Condensing temperature Suction temperature Ref Pipe length side Indoor Intake air temperature DB Intake air temperature WB Discharge air temperature DB side Outdoor Intake air temperature DB Intake air temperature WB side Indoor Intake air temperature DB F Intake air temperature WB F Discharge air temperature DB F side Outdoor Intake air temperature DB F Intake air temperature WB F SH...

Page 10: ...Rear piping cover Front piping cover Air intake Installation Feet 2 U Shaped notched holes Foundation Bolt M10 W3 8 2 12 36 Oval holes Foundation Bolt M10 W3 8 Side Air Intake Rear Air Intake Air Discharge 330 13 70 2 3 4 417 16 13 32 225 8 27 32 600 23 5 8 225 8 27 32 370 14 9 16 42 1 21 32 61 2 13 32 25 31 32 19 3 4 28 1 3 32 53 2 3 32 0 40 1 9 16 56 2 7 32 1 2 Conduit attachment Ø22 2 7 8 Ø27 8...

Page 11: ...se T6 3AL250V Relay U V W LI NI DCL1 DCL2 IGBT EI E2 E3 52C C B SW1 Switch Test Operation Switch Function Switch Model Select Switch Model Select SW4 SW5 SW6 SYMBOL NAME TB7 CN5 CND CN2M Terminal Block M NET connection Connector Transmission Connector Power Supply Connector M NET communication 1 2 3 4 5 6 7 8 OFF ON 42N MODEL SW6 SW5 6 2 OFF ON 1 2 3 4 5 6 1 MODEL SELECT The black square indicates...

Page 12: ...ed maximum 262 ft 80 m 2 The 30 ft 10 m wire is attached in the remote controller accessory Maximum 1500 ft 500 m 3 The figures are NOT always against the ground S3 terminal has 24 V DC against S2 terminal However between S3 and S1 these terminals are NOT electrically insulataed by the transformer or other device 4 Use earth leakage breaker NV 1 Wiring size must comply with the applicable local an...

Page 13: ...gures are NOT always against the ground Notes 1 Wiring size must comply with the applicable local and national code 2 Use copper supply wires 3 Use wires rated 300 V or more for the power supply cables 4 Install an earth longer than other cables Indoor unit model Indoor unit power supply Minimum circuit ampacity Maximum rating of overcurrent protective device Indoor unit power supply Indoor unit p...

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Page 15: ...UHVVHV DUH 1 234 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 2 50 M NET Address No Setting example Switching setting SW11 ones digit SW12 tens digit OFF ON 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6...

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Page 18: ...nishing service 3 There is no abnormality concerning of parts such as electrical component controller board remote controller etc 1 Re check the abnormal symptom 2 Conduct troubleshooting and ascertain the cause of the trouble according to 10 5 TROUBLESHOOTING BY INFERIOR PHENOMENA 3 Continue to operate unit for the time being if the cause is not ascertained 4 There is no abnormality concerning of...

Page 19: ...OWHUQDWHO After startup is displayed green twice and red once EOLQN DOWHUQDWHO E After startup is displayed only JUHHQ OLJKWV XS After startup is displayed only JUHHQ OLJKWV XS LQGLFDWHV GLJLWDO GLVSOD 2 Press TEST button twice 1 Turn on the main power supply 3 Press OPERATION SWITCH button 4 Press AIR DIRECTION button 5 Check the outdoor unit fan for correct running 6 Press the ON OFF button to r...

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Page 21: ...t s installation manual or service handbook 4 Reset the error history Display the error history in the diagnosis result display screen see step 3 F E G C D H B A I Check code 2 or 4 digits Alternating Display Address 3 digits or unit number 2 digits The refrigerant address will begin to blink approximately 3 seconds after being selected and the self diagnosis process will begin Unit number or refr...

Page 22: ...he display content will change as shown below A Press the FILTER button to start self diagnosis 3 Remote controller self diagnosis result When the remote controller is functioning correctly Check for other possible causes as there is no problem with the remote controller When the remote controller malfunctions Error display 1 NG blinks ĺ The remote controller s transmitting receiv ing circuit is d...

Page 23: ...G Procedure 3UHVV WKH EXWWRQ WZLFH 3UHVV WKH WHPSHUDWXUH EXWWRQV 3RLQW WKH UHPRWH FRQWUROOHU DW WKH VHQVRU RQ WKH LQGRRU XQLW DQG SUHVV WKH 285 EXWWRQ 3RLQW WKH UHPRWH FRQWUROOHU DW WKH VHQVRU RQ WKH LQGRRU XQLW DQG SUHVV WKH 21 2 EXWWRQ Malfunction diagnosis method at maintenance service 10 3 4 Malfunction diagnosis method by IR wireless remote controller In case of trouble during operation KHQ D...

Page 24: ...k code Number of times IR wireless remote controller Wired remote controller Errors detected by unit other than indoor unit outdoor unit etc Symptom Remark 1 Indoor outdoor unit communication error 2 Transmitting error Outdoor unit 3 Open short of outdoor unit thermistors 4 Compressor overcurrent interruption When compressor locked 5 Abnormal high discharging temperature 49C worked insufficient re...

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Page 34: ...isplay of indoor liquid pipe Indoor 1 Temperature display of indoor liquid pipe Indoor 2 Temperature display of indoor condenser evaporator pipe Indoor 1 Temperature display of indoor condenser evaporator pipe Indoor 2 1 6OLJKW WHPSHUDWXUH GLIIHUHQFH EHWZHHQ LQGRRU URRP WHPSHUD WXUH DQG SLSH OLTXLG RU FRQ GHQVHU HYDSRUDWRU WHPSHUD WXUH WKHUPLVWRU 6KRUWDJH RI UHIULJHUDQW LVFRQQHFWHG KROGHU RI SLSH ...

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Page 40: ...is after turning on the main power 1RUPDO The start up diagnosis will be over in around 2 minutes 0LVZLULQJ RI LQGRRU outdoor connecting wire UHDNLQJ RI LQGRRU outdoor connecting wire S3 HIHFWLYH LQGRRU controller board HIHFWLYH RXWGRRU controller circuit board 5HIHU WR 6HOI GLDJQRVLV action table in order to solve the trouble Q FDVH RI FRPPXQLFDWLRQ errors the display of remote controller may not...

Page 41: ...HFN LI WKH ZLULQJ LV EDG Check if the fuses are blown The fuses on the outdoor controller circuit board will be blown when the indoor outdoor connecting wire short circuits DG ZLULQJ RI WKH outdoor controller board 7KH IXVHV RQ WKH outdoor controller circuit board are blown KHFN LI PLVZLULQJ EUHDNLQJ or poor contact is causing this problem Indoor outdoor connecting wire is polarized 3 core type Co...

Page 42: ...FH WKH RXWGRRU controller circuit board 1RUPDO Only the unit which has the refrigerant address 0 supplies power to the remote controller 6HW WKH UHIULJHUDQW address to 0 In case of the multiple grouping system recheck the refrigerant address again HIHFWLYH LQGRRU power board 5HSODFH WKH LQGRRU power board HIHFWLYH RXWGRRU power circuit board 5HSODFH WKH RXWGRRU power circuit board HIHFWLYH LQGRRU ...

Page 43: ...RI WKH remote controller wire Check the voltage of the terminal block TB5 connecting the remote controller wire If it is not between 10 V DC and 16 V DC the indoor controller board must be defective 7KH UHPRWH FRQWUROOHU wire short circuits KHFN LI WKH UHPRWH controller wire is short circuited HIHFWLYH LQGRRU controller board 5HSODFH WKH LQGRRU controller board Diagnosis flow Cause QVSHFWLRQ PHWKR...

Page 44: ...twice to clear FILTER from the display See the operation manual that came with the product for how to clean the filters 3 STANDBY is displayed on the screen 3 This is displayed when the unit starts HEAT operation when the thermostat puts the compressor in operation mode or when the outdoor unit ends DEFROST operation and returns to HEAT operation The display will automatically disappear around 10 ...

Page 45: ...outdoor unit is controlling the airflow amount in order to keep the optimum operating condition 5 A sound similar to water flowing is heard from the unit 5 This is not a malfunction This is the sound which is heard when the refrigerant is flowing inside the indoor unit 2 The fan speed doesn t match the setting of the remote controller in HEAT operation The up down vane will be automatically set to...

Page 46: ...e airflow direction doesn t change Up down vane left right louver 3 1 Check if the vane is set to a fixed position Check if the vane motor connector is removed 2 Check if the air conditioner has a function for switching the air direction 3 If the air conditioner does not have that function NOT AVAILABLE will be displayed on the remote controller when AIR DIRECTION or LOUVER button is pressed Somet...

Page 47: ... down Heating water drips down from the heat exchanger Note Use optional parts Drain Socket and Drain pan if these water needs to be collected and drained out for once Water or moisture is expelled from the outdoor unit Batteries are being exhausted Replace them and press the reset button of remote controller The display of the IR wireless remote controller gets dim or doesn t come on The indoor u...

Page 48: ...ure the resistance between the terminals with a tester Ambient temperature 68 F 20 Solenoid valve coil Four way valve 21S4 Motor for compressor MC Linear expansion valve LEV A LEV B LEV C Normal Abnormal Open or short Disconnect the connector then measure the resistance with a tester Winding temperature 68 F 20 Refer to the next page Fan motor MF1 MF2 1435 i 150 0 188 Measure the resistance betwee...

Page 49: ...NF1 2 Fuse check Check the fuse F5 on outdoor controller board Power supply check Remove the connector CNF1 2 Measure the voltage in the outdoor controller circuit board TEST POINT 1 VDC between 1 and 4 of the fan connector VDC 250 330 V DC TEST POINT 2 VCC between 5 and 4 of the fan connector VCC 15 V DC Wiring recovery Replace outdoor controller board Replace the fan motor Replace outdoor contro...

Page 50: ... Nȍ Û Nȍ Û Nȍ Û Nȍ Û Nȍ Û Nȍ Û Nȍ Û Nȍ Û Nȍ Û Nȍ Û Nȍ High temperature thermistor 7KHUPLVWRU LVFKDUJH 7 7KHUPLVWRU RPS VXUIDFH 7 0 10 20 30 40 50 20 10 0 10 20 30 40 50 4 14 32 50 68 86 104122 F Temperature Resistance k 500 400 300 200 100 0 25 50 75 100 120 77 122 167 212 248 F Temperature Resistance k 7KHUPLVWRU 5 Nȍ FRQVWDQW W 5t H S W 7 Û 57 H S 7 7KHUPLVWRU 5 Nȍ FRQVWDQW W 5W H S W 7 Û 57 H S...

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Page 54: ...54 F 30 9 F 5 1 1 1 1 2 Remarks 1 If the thermistor temperature data is normal not open short that data is loaded into the control as valid data If the unit enters emergency operation because TH values have become mismatched setting the thermistors to open short corrects the settings 2 If one thermistor is set to open short the values for each will be different Example When pipe temperature thermi...

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Page 56: ...OO SULQWHG RQ WKH ERDUG Outdoor power circuit board PUZ HA42NKA 1 1 9 RQQHFW WR WKH RXWGRRU FRQWUROOHU FLUFXLW ERDUG 1 1 9ROWDJH RI 9 LV LQSXW RQQHFW WR WKH WHUPLQDO EORFN 7 RQQHFW WR WKH HDUWK RQQHFW WR 8 9 RQQHFW WR WKH FRPSUHVVRU 0 9ROWDJH DPRQJ SKDVHV 9 1 9 1 3 RQQHFW WR WKH RXWGRRU FRQWUROOHU FLUFXLW ERDUG 1 RQQHFW WR WKH HDUWK 1 GULYLQJ VLJQDO RQQHFW WR WKH RXWGRRU FRQWUROOHU FLUFXLW ERDUG 1...

Page 57: ...Action by the switch operation Forced defrost Start Normal When compressor is working in heating operation Abnormal history clear Refrigerant address setting When power supply ON Clear Normal off or operating SWP 6 5 4 3 Under suspension Pump down Start Normal SW4 SW8 1 2 1 2 3 Test run Operating OFF Under suspension Test run mode setting Heating Cooling Use of existing pipe Used Not used No funct...

Page 58: ...f demand control 3 1 2 SW7 1 SW7 2 OFF 0 Operation stop 75 50 OFF ON OFF OFF ON Power consumption Demand switch ON Model select Following SW5 6 reference CN31 Types Connector Function Effective timing Connector Start Short Open Action by open short operation Emergency operation When power turns ON Normal 2 Function of connector 3RZHU IDLOXUH DXWRPDWLF UHFRYHU FDQ EH VHW E HLWKHU UHPRWH FRQWUROOHU ...

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Page 60: ...troller Remote controller signal receiving error is detected by indoor unit Remote controller transmitting error is detected by indoor unit Serial communication error Communication between outdoor controller board and outdoor power board Communication between outdoor controller board and M NET P C board Communication error of M NET system Check code displayed on remote controller Refer to service ...

Page 61: ...rd and connector CN3 on outdoor power board are not disconnected 2 Measure resistance value of outdoor thermistors Abnormality of heatsink temperature 1 Check if indoor outdoor units have a short cycle on their air ducts 2 Measure resistance value of outdoor thermistor TH8 1 Check the outdoor fan motor 2 Check if connector TH3 T63HS on outdoor controller board is dis connected Abnormality of volta...

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Page 69: ... WR KHQ WKH WHPSHUDWXUH LV Û RU OHVV DQG WHPSHUDWXUH DUH GLVSOD HG E WXUQV KHQ WKHUH LV QR LQGRRU XQLW LV GLVSOD HG 1 ON 2 3 4 5 6 RQWUROOLQJ VWDWXV RI FRPSUHVVRU RSHUDWLQJ IUHTXHQF 1 ON 2 3 4 5 6 RGH GLVSOD 7KH IROORZLQJ FRGH ZLOO EH D KHOS WR NQRZ WKH RSHUDWLQJ VWDWXV RI XQLW Display Compressor operating frequency control Display Compressor operating frequency control Primary current control Sec...

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Page 71: ...ioner stopped skip to step 4 Ɣ Fixed Hz operation The operating frequency can be fixed to stabilize operation of inverter model If the air conditioner is currently stopped start it by this operation 2 Press the MODE button to select the desired operation mode Display A 3 Press the FILTER button to confirm the setting Display D Waiting for stabilization HEAT STABLE MODE STABLE MODE CANCEL COOL STAB...

Page 72: ...e Comp discharge temperature Outdoor ambient temperature INDOOR UNIT INLET TEMP INDOOR UNIT H EXC TEMP INDOOR UNIT FILTER USE H Indoor room temperature Heat exchanger temperature Filter operating time 12 340 hours Display Waiting for response Flashing After approx 10 seconds 1 1 Refrigerant address 00 Twin Refrigerant address 00 Outdoor unit Indoor unit 02 Indoor unit 01 Outdoor unit Remote contro...

Page 73: ...r heat exchanger temperature 7 Indoor intake air temperature Cool Classification Item Result Inspection Temperature difference Heat Inspection Temperature difference Stable Unstable F F Stable Unstable F F 1 Fixed Hz operation may not be possible under the following tempera ture ranges A In cool mode outdoor intake air temperature is 104 For higher or indoor intake air temperature is 73 F or lower...

Page 74: ... remote controller RF thermostat Function Settings Setting No Initial setting when sent from the factory Remarks 12 1 UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER DFK IXQFWLRQ FDQ EH VHW VHW DV QHFHVVDU XVLQJ WKH UHPRWH FRQWUROOHU 7KH VHWWLQJ RI IXQFWLRQ IRU HDFK XQLW FDQ RQO EH GRQH E WKH UHPRWH FRQWUROOHU 6HOHFW IXQFWLRQ DYDLODEOH IURP WKH WDEOH XQFWLRQV DYDLODEOH ZKHQ VHWWLQJ WKH XQLW QXPEHU ...

Page 75: ...LA BA Ceiling Suspended PCA KA Mode No Wired remote controller RF thermostat Cealing concealed PEAD AA Refer to the Table 5 below Refer to the Table 5 below XQFWLRQV DYDLODEOH ZKHQ VHWWLQJ WKH XQLW QXPEHU WR RU LQ WKH FDVH RI WKH 5 ZLUHOHVV UHPRWH FRQWUROOHU KHQ VHWWLQJ IXQFWLRQV IRU DQ LQGRRU XQLW LQ DQ LQGHSHQGHQW V VWHP VHW WKH XQLW QXPEHU WR UHIHUULQJ WR 4 VHWWLQJ WKH LQGRRU XQLW QXPEHU KHQ VH...

Page 76: ...ess E Specified indoor unit FAN operation Change refrigerant address or unit No 2 Switch to function setting mode Press A and B at the same time with stop the remote controller 12 1 1 Selecting functions using the wired remote controller PAR 21MAA First try to familiarize yourself with the flow of the function selection procedure In this section an example of setting the room temperature detection...

Page 77: ... blinks in the unit number display area and the refrigerant address display area also blinks there are no units that corre spond to the selected unit number In this case the refrigerant address and unit number may be incorrect so repeat steps 2 and 3 to set the correct ones When grouping different refrigerant systems if an indoor unit other than the one to which the refrigerant address has been se...

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Page 79: ...the operation mode is selected 2 OFF The automatic mode is not displayed when the operation mode is selected 0RGH VHOHFWLRQ VHWWLQJ 1 Remote controller main sub setting To sZLWFK WKH VHWWLQJ SUHVV WKH ON OFF button 1 Main The controller will be the main controller 2 Sub The controller will be the sub controller 2 Use of clocN VHWWLQJ To sZLWFK WKH VHWWLQJ SUHVV WKH ON OFF button 1 ON The clocN IXQ...

Page 80: ... when the operation mode is selected The temperature range limit is not active Initial setting value The temperature range can be changed on cooling dry mode The temperature range can be changed on heating mode The temperature range can be changed on automatic mode The remote controller will be the main controller Initial setting value The remote controller will be the sub controller The clock fun...

Page 81: ... 7 EOLQNV 2 3UHVV WKH AUTO START EXWWRQ EOLQNV 3 3UHVV WKH EXWWRQ EOLQNV 4 3UHVV WKH VHW EXWWRQ ZLWK VRPHWKLQJ VKDUS DW WKH HQG 02 6 7 LV OLJKWHG IRU VHFRQGV WKHQ WXUQHG RII ON OFF TEMP FAN VANE TEST RUN AUTO STOP AUTO START h min LOUVER MODE CHECK RESET SET CLOCK MODEL SELECT NOT AVAILABLE SWING CHECK FAN TEST RUN F C AMPM STOP START AMPM COOL DRY AUTO FAN HEAT 1 4 1 4 2 2 3 3 OCH567 ...

Page 82: ...n B 4 Press the CLOCK buttons and to set the desired request code No 5 Press the FILTER button to perform data request The requested data will be displayed at C in the same way as in maintenance mode Data collected during operation of the remote controller will be displayed The collected data such as temperature data will not be updated automatically even if the data changes To display the updated...

Page 83: ...ection Indoor unit Intake air temperature Unit No 2 Heat mode 4 deg correction Indoor unit Intake air temperature Unit No 3 Heat mode 4 deg correction Indoor unit Intake air temperature Unit No 4 Heat mode 4 deg correction Indoor unit Liquid pipe temperature Unit No 1 Indoor unit Liquid pipe temperature Unit No 2 Indoor unit Liquid pipe temperature Unit No 3 Indoor unit Liquid pipe temperature Uni...

Page 84: ...Error postponement history 2 previous Outdoor unit Error postponement history 3 last but one 0 255 Refer to13 2 1 DetailContentsinRequestCode Refer to13 2 1 DetailContentsinRequestCode Refer to13 2 1 DetailContentsinRequestCode Refer to13 2 1 DetailContentsinRequestCode 0000 Not connected Examples Ver 5 01 ĺ Auxiliary information displayed after version information Examples Ver 5 01 A000 ĺ Display...

Page 85: ...to last Error history 3 third to last Abnormal thermistor display TH3 TH6 TH7 TH8 Operation mode at time of error Compressor Operating current at time of error Compressor Accumulated operating time at time of error Compressor Number of operation times at time of error Discharge temperature at time of error Outdoorunit Liquidpipe1temperature TH3 attimeoferror Outdoor unit Liquid pipe 2 temperature ...

Page 86: ...time Fan motor ON time Indoor fan output value Sj value Indoor fan output value Pulsation ON OFF Indoor fan output value duty value Indoor unit Model setting information Indoor unit Capacity setting information Indoor unit SW3 information Wireless pair No indoor control board side setting Indoor unit SW5 information Indoor unit Microcomputer version information Indoor unit Microcomputer version in...

Page 87: ... A B C D C 4 Relay output state Operation mode Indoor unit Control state Request code 50 Data display Operation mode Display Operation mode 0 STOP FAN C COOL DRY H HEAT d DEFROST Relay output state Display Power currently Compressor Four way valve Solenoid valve supplied to compressor Unit No 4 state Unit No 3 state Unit No 2 state Unit No 1 state Display State 0 Normal 1 Preparing for heat operat...

Page 88: ...SV1 Four way valve Compressor 0 1 2 3 4 5 6 7 8 9 A b C d E F ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON Actuator output state Display 52C SV2 SS 0 1 2 3 4 5 6 7 ON ON ON ON ON ON ON ON ON ON ON ON Error content U9 Request code 55 Data display Error content Error content 0 0 Error content Detected Display Overvoltage Undervoltage L1 phase Power ...

Page 89: ...splay Request code 70 Data display Capacity 10 18 9 12 11 24 14 30 20 36 25 42 Outdoor unit Setting information Request code 71 Data display Setting information 1 Setting information 2 0 0 Setting information 1 Display Defrost mode 0 Standard 1 For high humidity Setting information 2 Display Single Heat pump three phase cooling only 0 Single phase Heat pump 1 Cooling only 2 Three phase Heat pump 3...

Page 90: ...1 1 1 1 0 0 1 1 1 0 1 0 1 1 1 1 1 0 1 1 1 0 0 1 1 1 1 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 Outdoor unit switch setting display SW1 to SW10 except SW3 Request codes 73 to 82 0 Switch OFF 1 Switch ON Data display SW5 1 2 3 4 0 0 0 0 00 00 1 0 0 0 00 01 0 1 0 0 00 02 1 1 0 0 00 03 0 0 1 0 00 04 1 0 1 0 00 05 0 1 1 0 00 06 1 1 1 0 00 07 0 0 0 1 00 08 1 0 0 1 00 09 0 1 0 1 00 0A 1 1 0 1 00 0b 0 0 1 1 00...

Page 91: ...b 1C 3C 1d 3d 1E 3E 1F 3F Indoor unit Capacity setting information Request code 163 Data display 0 0 See the table on the right Display Capacity setting state Display Capacity setting state 00 10 42 01 11 02 12 03 13 04 14 05 15 06 12 16 07 17 08 18 09 18 19 0A 1A 0b 24 1b 0C 1C 0d 30 1d 0E 1E 0F 36 1F Display Pair No setting state 00 No 0 01 No 1 J41 disconnected 02 No 2 J42 disconnected 03 No 3 ...

Page 92: ...HFW WKH FRQQHFWRU 1 1 9 9 DQG 9 RQ WKH FRQWUROOHU FLUFXLW ERDUG 6 PEROV RQ WKH ERDUG 1 1 DQ PRWRU 9 9 9 9 LVFRQQHFW WKH SLSH VLGH FRQQHFWLRQV RI WKH IROORZLQJ SDUWV 7KHUPLVWRU LTXLG 7 7KHUPLVWRU LVFKDUJH 7 7KHUPLVWRU SKDVH SLSH 7 7KHUPLVWRU PELHQW 7 7KHUPLVWRU 6XFWLRQ 7 7KHUPLVWRU RPS VXUIDFH 7 LJK SUHVVXUH VZLWFK RZ SUHVVXUH VZLWFK LJK SUHVVXUH VHQVRU 6 ZD YDOYH FRLO 6 5HPRYH WKH WHUPLQDO FRYHU D...

Page 93: ...H WKDW WKLV SURFHGXUH LV RQO IRU UHPRYLQJ 7 RRVHQ FODPS IRU WKH OHDG ZLUH IRU 7 3XOO RXW WKH WKHUPLVWRU LTXLG 7 WKHUPLVWRU 6XFWLRQ 7 WKHUPLVWRU RPS VXUIDFH 7 4 Removing the thermistor 2 phase pipe TH6 and thermistor Ambient TH7 5HPRYH WKH VHUYLFH SDQHO 6HH 3KRWR 5HPRYH WKH WRS SDQHO 6HH 3KRWR LVFRQQHFW WKH FRQQHFWRUV 7 UHG RQ WKH FRQWUROOHU FLU FXLW ERDUG LQ WKH HOHFWULFDO SDUWV ER RRVHQ IDVWHQHUV...

Page 94: ...4 way valve cover it with a wet cloth to prevent it from heating 120 C 250 F or more then braze the pipes so that the inside of pipes are not oxidized 9 Removing linear expansion valve 5HPRYH WKH VHUYLFH SDQHO 6HH 3KRWR 5HPRYH WKH WRS SDQHO 6HH 3KRWR 5HPRYH WKH HOHFWULFDO SDUWV ER 6HH 3KRWR 5HPRYH WKH FRYHU SDQHO IURQW 5HIHU WR SURFHGXUH 5HPRYH WKH FRYHU SDQHO UHDU 5HIHU WR SURFHGXUH 5HPRYH WKH YD...

Page 95: ...WR WKH ERWWRP RI WKH HOHFWULFDO SDUWV ER 12 Removing the compressor MC 5HPRYH WKH VHUYLFH SDQHO 6HH 3KRWR 5HPRYH WKH WRS SDQHO 6HH 3KRWR 5HPRYH WKH HOHFWULFDO SDUWV ER 6HH 3KRWR 5HPRYH WKH FRYHU SDQHO IURQW 5HIHU WR SURFHGXUH 5HPRYH WKH FRYHU SDQHO UHDU 5HIHU WR SURFHGXUH 5HPRYH WKH YDOYH EHG 5HIHU WR SURFHGXUH 5HPRYH WKH VLGH SDQHO 5 5HIHU WR SURFHGXUH 5HPRYH VHSDUDWRU IL LQJ VFUHZV î DQG UHPRYH ...

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Page 97: ...S 1 RoHS PARTS LIST 2 August 2014 SERVICE MANUAL OCH567 Note 5R 6 FRPSOLDQW SURGXFWV KDYH PDUN RQ WKH VSHF QDPH SODWH 63 7 7 3 7 3803 5 21 7 21 56 No OCB567 R410A PUZ HA42NKA Outdoor unit Model Name Service Ref PUZ HA42NKA ...

Page 98: ...2 1 RoHS PARTS LIST FUNCTIONAL AND ELECTRICAL PARTS PUZ HA42NKA 1 1 2 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 25 22 23 24 26 27 28 29 30 31 32 33 17 OCB567 ...

Page 99: ... 1 16 G R01 H32 202 THERMISTOR Suction 1 TH32 17 G R01 H00 202 THERMISTOR Liquid 1 TH3 18 G R01 E12 413 CHARGE PLUG 1 19 G R01 E00 209 LOW PRESSURE SWITCH 1 63L 20 G R01 H13 242 LEV COIL UKV type 1 Connector Red LEV B 21 G T7W E51 401 LEV B ASSY 1 For LEV B Including coil STV 22 G R01 H26 242 LEV COIL UKV type 1 Connector White LEV A 23 G R01 H14 242 LEV COIL UKV type 1 Connector Blue LEV C 24 G T...

Page 100: ...4 STRUCTURAL PARTS PUZ HA42NKA RoHS PARTS LIST 1 2 3 4 5 6 7 2 9 10 11 12 14 8 15 8 13 OCB567 ...

Page 101: ...4 G R01 E23 668 FRONT PANEL 1 5 G R01 E45 686 BASE ASSY 1 6 G R01 E35 658 COVER PANEL FRONT 1 7 G R01 E36 658 COVER PANEL REAR 1 8 G R01 E06 655 HANDLE REAR 2 9 G T7W E30 661 SIDE PANEL R 1 10 G T7W E19 668 SERVICE PANEL 1 11 G R01 E10 698 REAR GUARD 1 12 G R01 E36 641 TOP PANEL 1 13 G R01 E60 130 MOTOR SUPPORT 1 14 G R01 E02 631 ICE GUARD 2 15 G T7W E04 617 CONDUIT PLATE 1 RoHS PARTS LIST OCB567 ...

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Mitsubishi Electric Mr.Slim PUZ-HA42NKA, Service Manual

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