Mitsubishi SRR60ZJ-S Service Manual Download Page 47 | Manualshive

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'10 • SCM-SM-094

'09•SRK-DB-087D

Remote controller setting

Fan speed

switching

Operation

switching

Displayed data

Temperature

setting

21ºC
22ºC
23ºC
24ºC
25ºC

Displays the reason for the stop (error code) the previous time an error was displayed.

Displays the reason for the stop (error code) 2 times previous when an error was displayed.
Displays the reason for the stop (error code) 3 times previous when an error was displayed.
Displays the reason for the stop (error code) 4 times previous when an error was displayed.
Displays the reason for the stop (error code) 5 times previous when an error was displayed.

Cooling

MED

2) Stop data

Remote controller setting

Fan speed

switching

Operation

switching

Displayed data

Temperature

setting

21ºC
22ºC
23ºC
24ºC
25ºC
26ºC
27ºC
28ºC
29ºC
30ºC

Displays the reason for the stop (stop code) the previous time when the air conditioner was stopped by protective stop control.

Displays the reason for the stop (stop code) 2 times previous when the air conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 3 times previous when the air conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 4 times previous when the air conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 5 times previous when the air conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 6 times previous when the air conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 7 times previous when the air conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 8 times previous when the air conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 9 times previous when the air conditioner was stopped by protective stop control.

Displays the reason for the stop (stop code) 10 times previous when the air conditioner was stopped by protective stop control.

Cooling

LO

(Example)

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45
46
47
48
49
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Summary of Contents for SRR60ZJ-S

Page 1: ...M45ZJ S SCM50ZJ S SCM60ZJ S SCM71ZJ S SCM80ZJ S INDOOR UNIT Wall mounted type SRK20ZJX S SRK25ZJX S SRK35ZJX S SRK50ZJX S SRK60ZJX S SRK20ZJ S SRK25ZJ S SRK35ZJ S SRK50ZJ S Floor standing type SRF25ZJ...

Page 2: ...control function by remote controller 5 Flap and louver control 10 4 Custom cord switching procedure 9 3 Auto restart function 2 Unit ON OFF button 8 5 1 Remote controller Option parts 19 3 Operation...

Page 3: ...2 7 Heating low outdoor temperature protective control 36 9 Crankcase heater 37 10 Inching prevention 8 Freezing cycle system protective control 36 36 1 Frost prevention control 33 2 Cooling overload...

Page 4: ...series 63 5 1 Installation of outdoor unit 127 5 2 Installation of indoor unit 139 11 Outdoor unit inspection points 59 76 2 Troubleshooting 58 10 How to make sure of wireless remote controller 1 List...

Page 5: ...FDTC Ceiling cassette 4 way compact type JX S Example Outdoor unit SCM 60 Z Series code Inverter type Product capacity Model name Outdoor unit J S Capacity Model Floor standing type SRF Outdoor unit t...

Page 6: ...ER ECONOMY mode HI POWER ECONO button These buttons set the indoor temperature These buttons are used for setting the current time and timer function as well TEMPERATURE button This button selects ON...

Page 7: ...be used for turning on off the unit when remote controller is not available Remote controller signal receiver RUN HOT KEEP light green blue Illuminates during operation green except ECONO operation bl...

Page 8: ...ZJX S Unit display section AIR SELECTION button AIR OUTLET SELECTION light green Illuminates during upper air outlet operation TIMER light yellow Illuminates during TIMER operation This button can be...

Page 9: ...en the remote controller batteries become weak or if the remote controller is lost or malfunctioning this button may be used to turn the unit on and off a Operation Push the button once to place the u...

Page 10: ...sabled See the diagram at right ModelSRK20 60ZJX S Model SRK20 50ZJ S SRF25 50ZJX S SRR25 60ZJ S Jumper wire J170 Jumper wire JA1 4 Custom cord switching procedure If two wireless remote controller ar...

Page 11: ...75 Swing Flap stopped Approx 45 Approx 60 Approx 60 Angle of Flap from Horizontal Mode SRK20 60ZJX S COOL DRY FAN Remote controller display HEAT Approx 10 Approx 25 Approx 25 Approx 40 Approx 40 Appro...

Page 12: ...ries Control the flap by AIRFLOW UP DOWN button on the wireless remote controller a Flap Each time when you press the AIRFLOW UP DOWN button the mode changes as follows b Swing 1 Swing flap Flap moves...

Page 13: ...the start or until indoor temperature is close to reaching the setting point And then the air outlet will change to both outlets in order to spread comfort air to every corner 2 HEAT operation a In c...

Page 14: ...lowing Fixed Operation mode Indoor temp Setting temp 2 C Setting temp Indoor temp 2 C At heating At cooling Air flow direction contorol 2 C Setting temp Indoor temp 5 C 2 C Indoor temp Setting temp 5...

Page 15: ...installation location while the installation location setting display illuminates Airflow range Airflow range Airflow range Left End Installation Center Installation Right End Installation Center Ins...

Page 16: ...stop 2 Inciuding the Fan operation according to the mismatch of operation modes 1 Control A a If the float switch detects any anomalous draining condition the unit stops with the anomalous stop and t...

Page 17: ...alid Operation is displayed but it does not mean a failure Cover AIR CON No button Display the indoor unit number connected to this remote controller CHECK button This button is used at servicing TEST...

Page 18: ...when this is pressed once again it stops operating Used to swing the louver Every time this button is pressed displays switch as below Sets room temperature by pressing or button Sets time when settin...

Page 19: ...Operation mode Airflow volume mode Room temperature setting Louver auto swing stop However the stop position 4 position is cancelled so that it returns to Position 1 Remote controller function items w...

Page 20: ...Outdoor unit fan Indoor unit fan Louver motor Drain pump 3 2 2 Thermostat ON Thermostat OFF 2 2 Note 1 Operation Stop Turned ON OFF by the control other than the room temperature control 2 ON during...

Page 21: ...er ON This is not displayed under the Remote mode 2 If this display is not shown under the Center Remote mode check if the indoor unit power switch is turned on or not f Hot start Cold draft preventio...

Page 22: ...ensor is effective i Filter sign As the operation time Total ON time of ON OFF switch accumulates to 180 hours 1 FILTER CLEANING is displayed on the remote controller This is displayed when the unit i...

Page 23: ...change of operation mode If the thermostat is turned OFF during the forced operation control of heating compressor the louver position with the auto swing is returned to the level position Note 1 The...

Page 24: ...oling operation SRC40 60 FDC100 140 Model Symbol A 4 4 1 1 1 0 1 0 2 5 2 5 B C D 2 Selection of indoor fan speed If it enters the frost prevention control during cooling operation excluding dehumidify...

Page 25: ...ing procedure Signal wiring between indoor and outdoor units should be made on each unit same as the normal wiring For the group control lay connect with sires wiring between rooms using terminal bloc...

Page 26: ...l and start stop operation of the unit from the wired remote controller becomes not available 2 In case that Operation permission prohibition mode setting is Valid and External input setting is Pulse...

Page 27: ...T 6 input Unit A Unit B Note The latest operation has priority It is available to operate stop by remote controller or center controller b In case of Pulse input setting Local setting It is effective...

Page 28: ...sampling present number of revolutions of indoor unit fan speed is reduced by 10min 1 3 End conditions Indoor fan speed is reduced to the setting airflow volume when the compressor OFF is established...

Page 29: ...S 1 5 7 6 kW SCM71ZJ S 1 5 9 1 kW SCM80ZJ S 1 5 9 5 kW 3 Hot keep operation If the hot keep operation is selected during the heating operation the indoor fan is controlled based on the temperature of...

Page 30: ...n 20 20 15 10 5 0 5 10 15 10 5 0 Outdoor air temperature Outdoor heat exchanger temperature Defrost operation start Defrost operation start temperature b h 2 2 h 20 3 Max 12 minutes and 50 seconds Hea...

Page 31: ...nit fan Compressor Outdoor unit fan Electronic expansion valve ON According to command speed According to outdoor unit speed According to decision speed 0 All indoor units OFF According to stop mode A...

Page 32: ...SRK SRR series b 1 2 3 c d 27 5 25 5 18 0 18 30 2 SRK 20 50ZJ S series a Determination of operation mode Heating Dehumidifying Cooling Indoor air temperature C Outdoor air temperature C Signals of wir...

Page 33: ...an start and stop the operation When the jumper wire J3 is released Permission Prohibition mode When Cnt input is set to ON the operation mode is changed to permission and if input is set to OFF the o...

Page 34: ...ol s indoor unit settings Input signal to CnT becomes valid at OFF ON only and the motion of air conditioner ON OFF is inverted CnT Input Unit CASE A Unit CASE B OFF OFF ON ON OFF ON OFF ON ON OFF OFF...

Page 35: ...speed is set to B or D rps and even if the speed becomes lower than B or D rps the speed is kept to B or D rps However when the thermo becomes OFF the speed is reduced to 0 rps The upper limit of com...

Page 36: ...ly 2 Contents of control Compressor stop 3 Release condition When the indoor heat exchanger temperature Th2 has become lower than the release tempera ture b Outdoor unit side 1 Start condition When th...

Page 37: ...tdoor air temperature Th2 is 10 C or lower after the compressor stops 8 Freezing cycle system protective control a Starting condition This control starts when the following conditions are met 1 When i...

Page 38: ...when it exceeds the control value 1 Switching with jumper wire Jumper wire J2 Short circuit At shipping from factory Short circuit Jumper wire J1 Short circuit At shipping from factory Current safe C...

Page 39: ...20 rps 60 rps SCM60ZJ S 20 rps 60 rps SCM80ZJ S 20 rps 60 rps SCM71ZJ S a The fan operates as follows according to the compressor command speed Except during defrost Cooling Heating Compressor speed r...

Page 40: ...ut 85 or less Outdoor fan speed 6th speed 5th speed More than 31 but 66 or less 4th speed 3rd speed Less than 31 More than 46 66 or more but 66 or less 6th speed 5th speed More than 31 but 46 or less...

Page 41: ...ondition When the outdoor air temperature Th2 has risen higher than 13 C for 30 seconds continuously while the compressor is operating b Contents of control The outdoor unit fan tap is brought down by...

Page 42: ...H I 8 7 5 4 405 1 7 55 7 056 8 05 5 50 1 0 7 7 4 5 7 55 7 1 7 4 H 1 8 50 J1 1 G07 G 4G 5H 3 Troubleshooting procedure If the air conditioner does not run at all 8 0 7 5 0 0 5 1 5 5 44 0 65 1 8 34 1056...

Page 43: ...42 10 SCM SM 094 4 Troubleshooting procedure If the air conditioner runs NO NO NO NO YES YES YES YES 43 44 50 44 50...

Page 44: ...pole positions cannot be correctly detected when the compressor starts The air conditioner stops Defective compressor Open phase on compressor Defective outdoor PCB Service valve is closed Refrigeran...

Page 45: ...indoor unit Data are recorded for up to 5 previous occurrences Data which are older than the 5th previous occurrence are erased In addition data on the temperature of each sensor room temperature indo...

Page 46: ...6 865 4 6 45 A 11 1 8 B F65 4 5 1 14 1 5 5 1 14 1 4 6 11 1 8 D45 865 4 8 6 45 F65 4 5 6 8 1 4 Q 4 1 5 5 1 14 1 4 6 11 1 8 D45 865 4 8 6 45 F65 4 5 1 1 1 6 2 1 4 6 4 6 11 1 8 D45 865 4 8 6 45 F65 4 5...

Page 47: ...n for the stop stop code 2 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 3 times previous when the air conditioner was stopp...

Page 48: ...ght 1 s digit Stop coad or Error coad Error content Cause Occurrence conditions Error display Auto recovery OFF 3 time flash 5 time flash 6 time flash 8 time flash 4 time flash 2 times 2 times 3 times...

Page 49: ...Display pattern when in service mode Operation switching when there is an abnormal stop 0 1 2 4 3 AUTO DRY COOL FAN HEAT C N5 6 678 8 A TIMER light Fan speed switching Display pattern when in service...

Page 50: ...34 44 54 64 74 84 94 55 45 35 25 15 5 5 15 25 35 45 55 65 75 85 95 56 46 36 26 16 6 6 16 26 36 46 56 66 76 86 96 57 47 37 27 17 7 7 17 27 37 47 57 67 77 87 97 58 48 38 28 18 8 8 18 28 38 48 58 68 78 8...

Page 51: ...0 10 30 50 70 90 110 130 150 52 32 12 12 32 52 72 92 112 132 54 34 14 14 34 54 74 94 114 134 56 36 16 16 36 56 76 96 116 136 58 38 18 18 38 58 78 98 118 138 No does not sound 0 12 3 456 7 1284 9 7 2 2...

Page 52: ...51 10 SCM SM 094 09 SRK DB 087D Service data record form 45...

Page 53: ...10 40 50 60 70 0 10 Discharge pipe sensor temperature characteristics Indoor fan motor error Broken sensor wire connector poor connection 0 0 20 40 60 80 100 120 135 20 40 60 80 100 120 140 160 180 T...

Page 54: ...Current cut Compressor lock Compressor wiring short circuit Compressor output is open phase Outdoor PCB is faulty Service valve is closed EEV is faulty Compressor faulty Current safe stop Overload ope...

Page 55: ...094 09 SRK DB 087D Over heat of compressor Gas shortage defective discharge pipe sensor Error of signal transmission Wiring error including power cable defective indoor outdoor PCB 52 main indoor indo...

Page 56: ...tor error Defective fan motor connector poor connection defective outdoor PCB Power supply reset Is it normalized Malfunction by temporary noise Replace fan motor If the error persists after replacing...

Page 57: ...r unit Defective compressor defective outdoor PCB Sensor Operation mode Phenomenon Shortcircuit Disconnected wire Room temperature sensor Cooling Heating Heat exchanger sensor Cooling Heating Humidity...

Page 58: ...15 A YES YES YES NO NO NO b Indoor unit fan motor check procedure 1 Indoor PCB output check 2 Fan motor resistance check FMI DC15V Indoor PCB DC 308 336V DC several V 4 6 V CNU GND Blue Yellow White...

Page 59: ...m burns wiring mistakes etc If no problems are found check the output of the power transistor 2 Output inspection procedure Disconnect the terminals for the compresseor If an output such as the one sh...

Page 60: ...of resistance value of sensor Remove the connector and check the resistance value See the section of sensor characteristics on page 52 Power source and serial signal inspection to AC 220 230 240V to N...

Page 61: ...inspection to AC 220 230 240V to Normal if the voltage oscillates between DC 0 and approx 20V UNIT A UNIT B UNIT C Power supply 1 Phase 220 240V 50Hz Inspection of electronic expansion valve See page...

Page 62: ...rmal if the voltage oscillates between DC 0 and approx 20V UNIT A UNIT B UNIT C UNIT D Power supply 1 Phase 220 240V 50Hz Inspection of electronic expansion valve See page 62 Color Marks Mark Color BK...

Page 63: ...ansion valve as a separate unit Measuring point Resistance when normal b Outdoor unit fan motor check procedure 2 Fan motor resistance check Measuring point Resistance when normal Measuring point Resi...

Page 64: ...hanger tempera ture thermistor Defective indoor heat exchanger temperature thermistor defective element broken wire short circuit Poor contact of temperature thermistor connector Replacement repair of...

Page 65: ...air of temperature sensor 104 Outdoor main PCB Defective outdoor main PCB Defective temperature sensor input circuit Replacement of PCB Stays OFF Keeps flashing 1 time flash Outdoor main PCB compresso...

Page 66: ...with one remote controller Whenever excessively connected indoor units is detected after power ON Return air temperature thermistor anomaly 50 C or lower is detected for 5 seconds continuously within...

Page 67: ...ger remote controller switch and fuse Note 1 With regard to parts of high voltage circuits and refrigeration cycle judge it according to ordinary inspection methods b Instruction of how to replace ind...

Page 68: ...CB Parts mounting are different by the kind of PCB ON OFF Part number SW2 Blue Address setting SW5 Master Slave setting SW7 Function setting CNT Blue External switch CNJ White Louver motor CNN Yellow...

Page 69: ...ing connector color should match with the color of connector of the PCB Note 2 6 Let the wiring red and blue pass beneath the yellow green wiring and bind together with band 7 Screw back the terminal...

Page 70: ...l mode Valid Reserved keep OFF Test run Drain motor Normal Test run Valid Invalid Normal Model selection As per model See table 1 Remarks Address No setting at plural indoor units control by 1 R C 0 F...

Page 71: ...press the button which allows you to go back to the indoor unit selection screen Pressing the button will stop displaying data Pressing the RESET button during remote control unit operation will undo...

Page 72: ...ctively b Operation for judgment 1 Power ON and start check operation on cooling or heating mode 2 Check ON OFF status of 6 LED s on the checker 3 Judge the PCB by ON OFF status of 6 LED s on the chec...

Page 73: ...nspection to AC 220 230 240V to Normal if the voltage oscillates between DC 0 and approx 20V Color Marks Mark Color BK BR Black Brown RD Y G Red Yellow Green WH White OR Orange EEV S BK WH RD V W U FM...

Page 74: ...voltage oscillates between DC 0 and approx 20V UNIT A UNIT B UNIT C Power supply 1 Phase 220 240V 50Hz EEV S BK WH RD V W U FMo CM R CNTH CNFAN S 2 BK WH WH S 1 CNSUB CNMAIN SIN RIN BK WH SO RO 250V...

Page 75: ...d approx 20V UNIT A UNIT B UNIT C UNIT D Power supply 1 Phase 220 240V 50Hz Color Marks Mark Color BK BR Black BL Blue BR Brown Brown RD Y G Red Yellow Green WH White OR Orange YE Yellow EEV S BK WH R...

Page 76: ...rature thermistor anomaly 92 16 E7 Return air temperature thermistor anomaly 93 17 E8 Heating overload operation 94 18 E9 Drain trouble 95 19 E10 Excessive number of connected indoor units more than 1...

Page 77: ...mpressor or other respective parts NO YES YES NO YES YES YES NO NO Is the compressor operating NO YES NO Note 1 Outdoor 35 C Indoor 27 C 1 WAIT It is normal This unit is designed to start in the soft...

Page 78: ...s phenomenon NO YES YES NO YES YES YES NO NO Is the compressor operating NO YES NO Note 1 Outdoor 7 C Indoor 20 C 1 WAIT It is normal This unit is designed to start in the soft start mode by detecting...

Page 79: ...power supply the insulation resistance may drop to a few M because of refrigerant migrated in the compressor When the earth breaker is activated at lower insulation resistance check the following poin...

Page 80: ...nto the gap if necessary Prevent the vibration from transmitting to wall and etc by fixing pipes on the wall or wrapping rubber cushion around the pipe which goes through the hole in the wall or apply...

Page 81: ...side of piping of air conditioner It is likely to occur particularly during cooling or defrosting in the heating mode It is normal The noise vibration occurs when the refrigerant starts or stops flowi...

Page 82: ...n of air nitrogen etc In such occasion it is necessary to recover refrigerant vacuum dry and recharge refrigerant Since there could be many causes of noise vibration the above do not cover all In such...

Page 83: ...locked Check at the indoor unit side LM louver motor Is the louver operable with the remote controller YES NO Does the louver operate at the power on YES NO YES NO Operate after waiting for more than...

Page 84: ...LM etc OK NO NO 1 Note 1 for GND Is DC5V detected between of CNW2 NO Is AC220 240V for 1 phase unit detected between 1 and 2 on the terminal block of outdoor unit YES YES YES YES Is JX1 open Defective...

Page 85: ...broken or short circuited Is DC180V between of CNW2 Disconnect remote controller wires NO Is DC15V or higher detected between X Y of indoor unit terminal block YES YES YES YES NO NO NO Correct Replace...

Page 86: ...he connecting wire between the indoor and outdoor unit Power supply reset NO YES YES NO NO NO NO NO YES YES YES Set one remote controller for Master and the other for Slave Set SW1 on remote controlle...

Page 87: ...on with remote controller 3 Condition of Error displayed Same as above 4 Presumable cause Improper setting Surrounding environment Defective remote controller communication circuit Faulty indoor cont...

Page 88: ...t terminal block YES NO Is approx DC20V detected between on the indoor unit terminal block NO YES WAIT See next page Defective outdoor sub PCB Replace Defective indoor control PCB Replace Replace indo...

Page 89: ...eplacing the power supply fuse Diagnosis Countermeasure Replace the outdoor sub PCB YES YES NO YES Replace the outdoor main PCB NO Replace the reactor NO Isn t there a short circuit between phases of...

Page 90: ...emote controller side after disconnecting the remote controller Are wires connected properly between the indoor and the outdoor units Is approx DC20V detected between on the outdoor unit terminal bloc...

Page 91: ...en after 3 minutes Power reset NO WAIT Malfunction by noise Check peripheral environment Defective indoor control PCB Replace Defective remote controller Replace 2 Error detection method When normal c...

Page 92: ...ection looseness on the outdoor unit terminal block Power reset Note 2 Check for faulty connection or breakage of signal wires between indoor outdoor units YES NO YES NO Repair signal wires Repair sig...

Page 93: ...indoor heat exchanger temperature thermistor Replace Defective indoor control PCB Replace Defective indoor unit heat exchanger temperature thermistor input circuit 2 Error detection method Anomalousl...

Page 94: ...rect Connect connector Defective return air temperature thermistor Replace Defective indoor control PCB Replace Defective return air temperature thermistor input circuit 2 Error detection method Anoma...

Page 95: ...Note 2 For characteristics of indoor heat exchanger temperature thermistor see the error display E6 YES NO YES NO Error stop Reset Indoor heat exchanger temperature C 56 63 Wash Defective indoor heat...

Page 96: ...Is the drain pipe slop OK NO YES NO Defective indoor control PCB Replace Defective indoor control PCB Replace Check optional equipment Correct setting to Humidifier DM interlock Defective indoor power...

Page 97: ...del 5 Troubleshooting All models Diagnosis Countermeasure Aren t more than 17 indoor units connected to one remote controller NO YES Defective remote controller Replace Reduce to 16 or less units 2 Er...

Page 98: ...otor Check power voltage Replace faulty fan motor and power PCB Replace fan motor If the error persists after replacing the fan motor replace the indoor control PCB Malfunction by temporary noise 2 Er...

Page 99: ...oor control PCB ON E19 occurs when the power ON NO YES Defective indoor control PCB Defective SW7 Replace Turn SW7 1 on the indoor control PCB OFF and reset the power 2 Error detection method After in...

Page 100: ...er 3 minutes delay the compressor starts again automatically but if this error occurs again within 60 minutes after the initial detection 4 Presumable cause Faulty connection of remote controller temp...

Page 101: ...unit side Isn t the air circulation of outdoor unit short circuited Are installation spaces adequate Isn t there any fouling or clogging on heater exchanger Control operation check Defective outdoor...

Page 102: ...39 YES NO NO Replace discharge pipe temperature sensor Insufficient refrigerant amount Recharge refrigerant by weighing proper amount on a scale Control operation check Defective outdoor main PCB Repl...

Page 103: ...uit Correct connector Defective outdoor heat exchanger temperature sensor Replace Defective outdoor main PCB Replace Defective outdoor heat exchanger temperature sensor input circuit 2 Error detection...

Page 104: ...rect connector Defective outdoor air temperature sensor Replace Defective outdoor main PCB Replace Defective outdoor air temperature sensor input circuit 2 Error detection method Detection of anomalou...

Page 105: ...perature C Broken wire Shot circuit Correct connector Defective discharge pipe temperature sensor Replace Defective outdoor main PCB Replace Defective temperature sensor input circuit 2 Error detectio...

Page 106: ...NO NO NO Check power supply Open the valves Check refrigerant amount and refregerant circuit In case of transitional increase of high pressure and or test run several times restarting may recover it b...

Page 107: ...the filter clogged At heating does the indoor fan motor run Are the service valves fully opened Is the filter clogged Is there any liquid flooding Is the superheat within normal range Is the low press...

Page 108: ...en the main PCB and the outdoor sub PCB connected properly Is normal state restored YES NO NO NO Correct connector Check why power is not supplied to outdoor sub PCB Connect communication wire securel...

Page 109: ...for foreign matter like dust fouling etc YES Is voltage within the specified range NO Restore normal condition Restore normal condition Remove foreign matter like dust fouling etc Defective outdoor su...

Page 110: ...n by temporary noise 2 Error detection method Detected by rotation speed of outdoor fan motor 3 Condition of Error displayed When actual rotation speed of outdoor fan motor drops to 75min 1 or lower f...

Page 111: ...is Countermeasure 2 Error detection method 3 Condition of Error displayed 4 Presumable cause Note If the power transistor primary current exceeds the setting value for 3 seconds the compressor stops P...

Page 112: ...rect connector Defective suction pipe temperature sensor Replace Defective outdoor sub PCB Replace Defective suction pipe temperature sensor input circuit 2 Error detection method Detection of anomalo...

Page 113: ...place Charge refrigerant Defective indoor control PCB Replace Defective indoor heat exchanger return air temperature thermistor input circuits 2 Error detection method Judge insufficient refrigerant a...

Page 114: ...or under Same as above Excessive refrigerant amount Indoor outdoor unit installation spaces Faulty compressor Defective outdor air temp sensor Defective outdoor main PCB Diagnosis Countermeasure 2 Err...

Page 115: ...Defective outdoor main PCB Replace Repalce compressor 2 Error detection method If it fails to change over to the rotor detection operation of compressor motor 3 Condition of Error displayed If compres...

Page 116: ...ompressor rotor position 3 Condition of Error displayed If it fails again to detect the rotor position after shifting to the compressor rotor position detection operation the compressor stops 4 Presum...

Page 117: ...lash Over heat of compressor 6Time flash Error of signal transmission 7Time flash Lock of compressor 8Time flash Sensor error Except discharge pipe sensor Four sec light and Discharge pipe sensor erro...

Page 118: ...sensor Outdoor air temp sensor Discharge pipe temp sensor CM Th1 Connector 20S 4 Way valve coil Suction pipe temp sensor Th4 FMo Fan motor Terminal block TB1 TB2 outdoor unit HEATER Crank case heater...

Page 119: ...is produced in the control box don t touch electrical parts in the control box for 5 minutes after cutting power supply CNA CN20S EEV A EEV B EEV C EEV D R Compressor motor Electric expansion valve c...

Page 120: ...5 IM RD WH RD WH BK BL Y Y G BK t Th2 1 Th2 2 Th3 LM1 LM2 SM1 SM2 FMI DS t t TO OUTDOOR UNIT HEAT EXCHANGER 1 2 N 3 POWER WIRES SIGNAL WIRE 1 2 N 3 Power source 1 phase 220 240 V 50Hz T Color Marks B...

Page 121: ...UNIT BK WH RD Y G HEAT EXCHANGER 2 N 3 Y G HD ONLY t o 2 t o R AMP 2 HEAT EXCHANGER 5 FMI SMI LM1 LM2 F Va ThI Th2 Th3 T DS Blue Black BK Red BL RD White WH Yellow Green Y G Color Mark Heat exch sens...

Page 122: ...l block T Damper motor DM1 SM1 2 1 2 Damper arm motor Description Item Varistor Va DM2 250V F G 3 15A S N Va CNU CNS INTERFACE KIT SC BIKN E CNG CNE DISPLAY WIRELESS RECEIVER J CNF U M HEAT 1 3 4 5 6...

Page 123: ...G 1 2 N 3 WH BK Y G RD S N J RD BK WH BOX CONTROL U 8 2 2 2 RD CNW M F 250V 0 16A RD OR 5 1 WH WH BK 2 BK 10 BK L CNS FM DM Th1 Th2 Th3 t TO OUTDOOR UNIT POWER WIRES SIGNAL WIRE 1 2 N 3 Power source...

Page 124: ...6 7 8 9 BK BK BK BK 10 BK 11 BK 12 BK 13 BK 14 BK 15 BK 16 BK 17 BK BK 18 BK 19 BK 20 BK 1 2 3 4 5 BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 I FS LM1...

Page 125: ...or Th1 Heat exchanger Heat exchanger Liquid line Gas line 6 35 6 35 9 52 9 52 Strainer Compressor 4 way valve Service valve Liquid Capillary tube Capillary tube Electric expansion valve EEVA EEVB Cool...

Page 126: ...Sensor Th2 Accumlator Sensor Th4 Service valve Liquid Electronic expansion valve Compressor 4way valve Discharge Suction Sensor Th1 Heat exchanger Cooling cycle Heating cycle 9 52 or 12 7 9 52 or 12...

Page 127: ...sor EEVA EEVD EEVC EEVB Strainer Discharge Suction Sensor Th3 Receiver Sensor Th4 Service valve Liquid Electronic expansion valve Compressor Oil separator 4way valve Sensor Heat exchanger Th2 Sensor T...

Page 128: ...water Be sure to switch off the power supply in the event of installation inspection or servicing If the power supply is not shut off there is a risk of electric shocks unit failure or personal injur...

Page 129: ...ned specifically for R410A Gauge for projection adjustment Used when flare is made by using conventional flare tool 9 10 11 12 13 14 15 16 Plus headed driver Knife Saw Tape measure Hammer Spanner wren...

Page 130: ...REFRIGERANT PIPINGS 3 Copper pipe diameter Clutch typr flare tool for R410A Conventional R22 flare tool Clutch type Wing nut type Measurement B mm 6 35 0 0 0 5 1 0 1 5 1 5 2 0 9 52 0 0 0 5 1 0 1 5 1 5...

Page 131: ...n and before turning on the power Conduct a test run again and ensure that the unit operates properly At the same time explain to the customer how to use the unit and how to take care of the unit foll...

Page 132: ...131 10 SCM SM 094 page139 and 160 25A 2 Models SCM50ZJ S 60ZJ S...

Page 133: ...132 10 SCM SM 094...

Page 134: ...133 10 SCM SM 094...

Page 135: ...134 10 SCM SM 094...

Page 136: ...g operation valves before compressor stopping air can be sucked which can cause burst or personal injury due to anomalously high pressure in the refrigerant circuit Only use prescribed optional parts...

Page 137: ...ng and miscellaneous small parts Indoor unit installation manual Necessary tools for the installation work Wrench key Hexagon 4m m Vacuum pump Vacuum pump adapter Anti reverse flow type Designed speci...

Page 138: ...rom the aring block will vary depending on the type of a are tool in use If a conventional are tool is used please use a copper pipe gauge or a similar instrument to check protrusion so that you can k...

Page 139: ...failures therefore it shall never be done City water pipe Town gas pipe TV antenna lightning conductor telephoneline etc Check the following points again after completion of the installation and befor...

Page 140: ...ange the wiring in the control box so that it cannot be pushed up further into the box Install the service panel correctly Incorrect installation may result in overheating and fire Be sure to switch o...

Page 141: ...he flare nut by torque wrench with specified method If the flare nut were tightened with excess torque this may cause burst and refrigerant leakage after a long period The electrical installation must...

Page 142: ...for heat insulation Position it so that the slit area faces upward 9 5 A J 1G G J 1G G J 1G G 2 A H 9 5 A C 1 A 9 A C B 9 2 C 5 9 A A 2 3 8 A B A A B A A A 3 3 3 A 3 0 A A A 9 C A 5 A 2 1 2 4 0 0 002...

Page 143: ...t insulation Position it so that the slit area faces upward 9 5 A J 1G G J 1G G J 1G G 9 A C A A A A A B A C C C A A 9 0 5 A C A A C 5 C 21 2 9 2 A H 9 5 A C 1 A 9 A C B 9 2 C 5 9 A A 2 3 8 A B A A B...

Page 144: ...r any powder is floating Locations where any substances that can affect the unit such as sulphide gas chloride gas acid and alkaline can occur Vehicles and ships Locations where cosmetic or special sp...

Page 145: ...outlet air of the unit Locations where vibration can be amplified due to insufficient strength of structure Locations where the infrared receiver is exposed to the direct sunlight or the strong light...

Page 146: ...protrusion from the flaring block will vary depending on the type of a flare tool in use If a conventional flare tool is used please use a copper pipe gauge or a similar instrument to check protrusion...

Page 147: ...nventional flare tool Please note that measurement B protrusion from the flaring block will vary depending on the type of a flare tool in use If a conventional flare tool is used please use a copper p...

Page 148: ...n the event of installation inspection or servicing If the power supply is not shut off there is a risk of electric shocks unit failure or personal injury due to the unexpected start of fan CAUTION Us...

Page 149: ...ower before starting electrical work Failure to shut off the power can cause electric shocks unit failure or incorrect function of equipment Be sure to use the cables conformed to safety standard and...

Page 150: ...3 4 0 6 2 3 3 1 5 1 1 1 1 3 1 3 1 4 3 3 3 43 1 4 3 6 3 0 0 2 1 1 5 1 3 4 3 D 6 3 04 0 6 A 3 1 2 3 2 15 0 13 43 1 4 3 G K4 2 A 2 3 K4 5 5 6 3 7 61 8 C 2 2 4 8 0 3 2 5 5 A 118 43 0 1 3 1 3 0 1 341 2 6 0...

Page 151: ...1 0 0 2 5 24 3 2 6 1 7 A 3 6 1 B 13 6 1 43 1 3 0 1 1 3 0 0 1 2 2 1 6 A 0 A 5 1 3 73 1 1 0 13 6 3 43 1 3 0 2 0 3 0 0 2 3 6 3 3 3 412 3 1 43 3 3 3 0 0 3 3 2 7 3 6 1 0 0 2 3 3 6 6 3 02 33 1 5 3 1 3 1 A...

Page 152: ...151 10 SCM SM 094 127 and 138 3 Ceiling concealed type SRR...

Page 153: ...152 10 SCM SM 094...

Page 154: ...153 10 SCM SM 094...

Page 155: ...154 10 SCM SM 094...

Page 156: ...155 10 SCM SM 094 4 Ceiling cassette 4way compact type FDTC...

Page 157: ...e installation If suspension bolt becomes longer do reinforcement of earthquake resistant For grid ceiling When suspension bolt length is over 500mm or the gap between the ceiling and roof is over 700...

Page 158: ...thin 5mm left to the nut Do not apply adhesives on this end Drain socket The step part Drain hose No adhesive allowed Drain socket Metal plate 10mm Hose clamp Fasten the screw within 5 mm left to the...

Page 159: ...provider of the country and be executed according to the technical standards and other regulations applicable to electrical installation in the country Be sure to use an exclusive circuit Use specifi...

Page 160: ...159 10 SCM SM 094 PJA012D783...

Page 161: ...M 094 Note This function is not able to be set with wireless remote controller or simple remote control RCH H3 For setting the swing range of other louvers return to 1 and proceed same procedure respe...

Page 162: ...ng Refrigeration Systems Headquarters 16 5 2 chome Kounan Minato ku Tokyo 108 8215 Japan Fax 03 6716 5926 Copyright MITSUBISHI HEAVY INDUSTRIES LTD Because of our policy of continuous improvement we r...

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