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Mitsubishi SCM100ZJ-S1, Руководство по обслуживанию

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 '11 • SCM-SM-110

.....................................................................185

3.2 Indoor units

...........................................................................................142

(3) Models SCM71ZJ-S1, 80ZJ-S1 .............................................................165
(4) Models SCM100ZJ-S1, 125ZJ-S1 .........................................................169

3.1 Outdoor units

........................................................................................137

(2) Models SCM50ZJ-S1, 60ZJ-S1 .............................................................161

(1) Models SCM40ZJ-S, 45ZJ-S

................................................................157

(1) Wall mounted type (SRK)

.....................................................................173

(2) Floor standing type (SRF)

...............................................................189

(3) Ceiling concealed type (SRR)

........................................193

(4) Ceiling cassette-4way compact type (FDTC)

.....................................................................146

(1) Wall mounted type (SRK) ......................................................................142
(2) Floor standing type (SRF)

...............................................................148

(3) Ceiling concealed type (SRR)

.......................................149

(4) Ceiling cassette-4way compact type (FDTC)

...........................................................150

(5) Ceiling suspended type (FDEN)

....................151

(6) Duct connected Low/Middle static pressure type (FDUM)

............................................................199

(5) Ceiling suspended type (FDEN)

....................203

(6) Duct connected Low/Middle static pressure type (FDUM)

2.2.1 Diagnosing of microcomputer circuit

............................................. 77

2.2.2 Troubleshooting flow

....................................................................... 90

2.2 FDTC, FDEN and FDUM series ............................................................. 77

5.1 Outdoor units ..........................................................................................157

5.2 Indoor units

............................................................................................173

(11) Outdoor unit inspection points

.............................................................. 71

.................................................................................... 91

(2) Troubleshooting

................................... 70

(10) How to make sure of wireless remote controller

(1) List of troubles

...................................................................................... 90

(1) Selfdiagnosis function

........................................................................... 77

(2) Troubleshooting procedure

................................................................... 81

........................................................ 81

(5) Inverter checker for diagnosis of inverter output ................................... 89
(6) Outdoor unit inspection points

.............................................................. 89

(4) Check of anomalous operation deta with the remote controller

(3) Troubleshooting at the indoor unit

............ 88

(9) Checking the indoor electrical equipment

............................................. 69

(8) Phenomenon observed after shortcircuit, wire breakage on sensor

............ 68

3. ELECTRICAL WIRINGS ..............................................................................137

4. PIPING SYSTEMS .......................................................................................152
5. INSTALLATION MANUAL. ...........................................................................157

...................208

(7) Replacement procedure of the fan unit (For FDUM model)

6. TABLE OF FUNCTIONS CONNECTED WIRED REMOTE CONTROLLERS (RC-E4, E5) .............209

Содержание SCM100ZJ-S1

Страница 1: ...J S1 INDOOR UNIT Wall mounted type SRK20ZJX S 25ZJX S 35ZJX S 50ZJX S1 60ZJX S1 SRK25ZJR S 35ZJR S SRK20ZJ S 25ZJ S 35ZJ S 50ZJ S SRK71ZK S Floor standing type SRF25ZJX S 35ZJX S 50ZJX S1 Ceiling cass...

Страница 2: ...only 12 4 Custom cord switching procedure 11 5 Selection of the annual cooling function 11 6 High power operation 12 7 Econo operation 9 3 Auto restart function 2 Unit ON OFF button 9 5 1 Remote contr...

Страница 3: ...l remote display output 39 7 Heating low outdoor temperature protective control 44 9 Crankcase heater 44 10 Inching prevention 8 Freezing cycle system protective control 44 43 1 Frost prevention contr...

Страница 4: ...Diagnosing of microcomputer circuit 77 2 2 2 Troubleshooting flow 90 2 2 FDTC FDEN and FDUM series 77 5 1 Outdoor units 157 5 2 Indoor units 173 11 Outdoor unit inspection points 71 91 2 Troubleshoot...

Страница 5: ...oncealed type SRR Table of models Wall mounted type SRK ZJX S Wall mounted type SRK ZJ S Wall mounted type SRK ZJR S Wall mounted type SRK ZK S Duct connected Low Middle static pressure type FDUM Ceil...

Страница 6: ...urrent time and timer function as well This button cancels the ON timer OFF timer and SLEEP operation CANCEL button The above illustration shows all controls but in practice only the relevant parts ar...

Страница 7: ...HT button This button changes the air flow left right direction CANCEL button This button cancels the ON timer OFF timer and SLEEP operation ACL switch Switch for resetting microcomputer OFF TIMER but...

Страница 8: ...controls but in practice only the relevant parts are shown Each time the button is pressed the display is switched over in turn FAN SPEED button This button changes the HIGH POWER ECONOMY mode HI POW...

Страница 9: ...ceiver ON OFF 1 5 sec 0 5 sec HOT KEEP 3 sec 1 sec ON OFF CLEAN operation c SRR series Each time the button is pressed the display is switched over in turn These buttons set the room temperature These...

Страница 10: ...t 26 C Unit ON OFF button Unit ON OFF button Unit ON OFF button Model SRK20 25 35ZJX S 50 60ZJX S1 Model SRK25 35ZJR S 20 25 35 50ZJ S Model SRF25 35ZJX S 50ZJX S1 Model SRR25 35 50 60ZJ S 3 Auto rest...

Страница 11: ...g procedure Be sure to modify both boards If only one board is modified receiving and operation cannot be done a Modifying the indoor printed circuit board Take out the printed circuit board from the...

Страница 12: ...ZJ S Model SRK20 25 35ZJX S 50 60ZJX S1 71ZK S SRF25 35ZJX S 50ZJX S1 SRR25 35 50 60ZJ S Model A SRK20 25 35ZJX S 50 60ZJX S1 SRR25 35 50 60ZJ S 17 SRK71ZK S 7 SRK25 35ZJR S SRK20 25 35 50ZJ S 10 Jump...

Страница 13: ...itiate a soft operation with the power suppressed in order to avoid an excessive cooling or heating The unit operate 1 5 higher than the setting temperature during cooling or 2 5 lower than that durin...

Страница 14: ...r Right Approx 20 Right Approx 50 Louver stopped Swing c Swing 1 Swing flap Flap moves in upward and downward directions continuously 2 Swing louver Louver moves in left and right directions continuou...

Страница 15: ...ss the AIRFLOW UP DOWN button the mode changes as follows b Swing 1 Swing flap Flap moves in upward and downward directions continuously c Memory flap Flap stopped When you press the AIRFLOW button on...

Страница 16: ...r 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 case both low...

Страница 17: ...owing 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 C...

Страница 18: ...setting the installation location while the installation location setting display illuminates Airflow range Airflow range Airflow range Left End Installation Center Installation Right End Installatio...

Страница 19: ...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...

Страница 20: ...button is pressed Invalid 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 u...

Страница 21: ...tment mode Cover AIR CON No button Display the indoor unit number connected to this remote controller CHECK button This button is used at servicing TEST button This button is used during test operatio...

Страница 22: ...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...

Страница 23: ...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...

Страница 24: ...re C b Operations of functional items during cooling heating Cooling Heating Dehumidify Fan Operation Functional item Thermostat ON Thermostat ON Thermostat OFF Thermostat OFF Hot start Defrost Compre...

Страница 25: ...is met the hot start control is performed 1 From stop to heating operation 2 From cooling to heating operation 3 Form heating thermostat OFF to ON 4 After completing the defrost control only on units...

Страница 26: ...tat OFF 1 Following fan controls during the heating thermostat OFF can be selected with the indoor function setting of the wired remote controller Low fan speed Factory default Set fan speed Intermitt...

Страница 27: ...osition LCD for 10 second The display changes to the SWING display 3 seconds later 2 When the Low fan speed Factory default is selected the following taps are used for the indoor fans For AC motor Lo...

Страница 28: ...r Compressor will not stop for 3 minutes after the compressor ON However it stops immediately when the unit is stopped by means of the ON OFF switch or by when the thermister turned OFF the change of...

Страница 29: ...o communication with the outdoor unit but it allows performing operation in respective modes by operating the remote controller 4 Drain pump test run mode As the drain pump test run is established the...

Страница 30: ...red remote controller p Heating overload protection 1 If the indoor heat exchanger temperature detected with ThI R at 63 C or higher is detected for 2 seconds continuously the compressor stops When th...

Страница 31: ...in a higher ceiling room the airflow volume mode control can be changed with the wired remote controller indoor unit function FAN SPEED SET PHi Hi PHi Me PHi Hi Me STANDARD HIGH SPEED1 2 FAN SPEED SE...

Страница 32: ...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...

Страница 33: ...Local setting It is effective only when the input signal to CnT 6 is changed OFF ON and at that time unit operation ON OFF is inverted 3 Remote operation a In case of multiple units Max 16 indoor unit...

Страница 34: ...low 37 C at next 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 OF...

Страница 35: ...ZJ S 1 4 6 7 kW SCM45ZJ S 1 4 7 2 kW SCM50ZJ S1 1 4 7 3 kW SCM60ZJ S1 1 5 7 6 kW SCM71ZJ S1 1 5 9 1 kW SCM80ZJ S1 1 5 9 5 kW Model Capacity SCM100ZJ S1 1 5 13 3 kW SCM125ZJ S1 1 5 13 8 kW 3 Hot keep o...

Страница 36: ...7 minutes Hot keep operation 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 Tho R Tho R Tho R 2...

Страница 37: ...d b Outdoor compressor speed control Model Capacity SCM40ZJ S 1 8 5 8 kW SCM45ZJ S 1 8 6 3 kW SCM50ZJ S1 1 8 6 9 kW SCM60ZJ S1 1 8 7 3 kW SCM80ZJ S1 1 8 8 7 kW SCM71ZJ S1 1 8 8 3 kW Model Capacity SCM...

Страница 38: ...temperature Dehumidifying 18 19 20 21 22 23 24 25 26 27 28 29 30 Heating 20 21 22 23 24 25 26 27 28 29 30 31 32 Signals of wireless remote control Display 6 5 4 3 2 1 0 1 2 3 4 5 6 Setting Cooling 18...

Страница 39: ...the case of CnT input OFF Operation prohibition a Air conditioner is unable to control the operation stop ect in accordance with signals from the remote controller signal wire b Air conditioner stops...

Страница 40: ...2 Control of input signal Control of input signal switch input timer input connectors CNT are provided on the printed circuit board of indoor unit However when the operation of air conditioner is und...

Страница 41: ...ower limit speed Model Forced outage Operation instruction Depends on operation mode 8 2 5 Reset Protective control 40 41 46 47 OFF ON1 ON2 Outdoor air temperature C 25 31 Tho A b Detail of operation...

Страница 42: ...f compressor command speed is set to A or C rps the speed is kept to A or C rps c Reset conditions When the either of the following condition is satisfied When the outdoor air temperature Tho R become...

Страница 43: ...control speed NP Normal Retention NP 4rps NP 8rps Sampling time s Normal 20 20 20 Th2 NP P1 P2 P3 10 NP 115 45 52 57 5 115 NP 120 45 43 52 50 57 5 55 120 NP 43 50 55 Unit C Model SCM40 45 50 Th2 NP P...

Страница 44: ...ns 8 6 4 6 Lower limit 40 rps model 50 45 rps Lower limit 35 rps Normal operation Outdoor air temperature C 6 Tho A Tho A Tho A Tho A Tho A Tho A 10 or 17 model 60 71 80 13 A or C B or D B or D B or D...

Страница 45: ...s 2 Compressor stops by the abnormal stop when the compressor stop has occurred 3 times in one hour Unit Compressor command speed Indoor air temperature Th1 Indoor air temperature Th1 and indoor heat...

Страница 46: ...urpose b Detail of operation Cooling Heating Lower limit speed Item Model 115 SCM40 45 50 SCM60 71 80 100 125 32 rps 32 rps 32 rps 25 rps Model SCM40 45 50 60 71 80 Detecting the outdoor unit inverter...

Страница 47: ...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 4th speed 3rd speed Cooling Heating Compressor speed rps Outdo...

Страница 48: ...ure Cooling Model SCM40 45 50 60 71 80 a Operating conditions b Detail of operation c Reset conditions Outdoor air temperature 10 C Outdoor air temperature 10 C Outdoor fan Outdoor air temperature 16...

Страница 49: ...oor unit fan tap is brought up by 3 steps Higher limit is 6th tap c Release condition When the compressor is turned off or the outdoor heat exchanger temperature Tho R has dropped lower than 40 C Heat...

Страница 50: ...AF 110 C Tho AF 110 C Protection control speed NP Normal Retention NP 2rps NP 4rps 0rps Sampling time s Normal 20 20 20 c Resetting condition When the power transistor temperature is lower than 90 C o...

Страница 51: ...M 110 2 MAINTENANCE DATA 2 1 SRK SRF and SRR series 1 Cautions 2 Items to check before troubleshooting 3 Troubleshooting procedure If the air conditioner does not run at all Important YES YES YES NO N...

Страница 52: ...51 11 SCM SM 110 4 Troubleshooting procedure If the air conditioner runs NO NO NO NO YES YES YES YES 52 54 62 54 62...

Страница 53: ...ps Defective compressor Open phase on compressor Defective outdoor PCB Service valve is closed Refrigerant is insuf Outdoor sub PCB communication error Outdoor sub PCB fauly Poor connection of wire be...

Страница 54: ...r 15 minutes Detected more than 15 seconds 4 times Limit switch error Defective limit switch Defective suction panel set Defective indoor control PCB Actuation limit switch When the outdoor unit s fan...

Страница 55: ...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 indoor hea...

Страница 56: ...g 21 C 22 C 23 C 24 C 25 C 1 time previous previous time 2 times previous 3 times previous 4 times previous 5 times previous Only for indoor heat exchanger sensor 2 Remote controller setting Indicates...

Страница 57: ...he 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 p...

Страница 58: ...coad or Error coad Error content Cause Occurrence conditions Error display Auto recovery OFF 3 times flash 5 times flash 6 times flash 8 times flash 4 times flash 2 times 2 times 3 times 3 times 3 ti...

Страница 59: ...1 s digit Stop coad or Error coad Error content Cause Occurrence conditions Error display Auto recovery OFF 3 times flash 5 times flash 6 times flash 4 times flash 2 times 2 times 3 times 3 times 3 t...

Страница 60: ...ressor stops Indoor unit fan speed drops Indoor heat exchanger sensor is broken wire Anti frost control 85 5 times flash When the anti frost control operates and the compressor stops during cooling op...

Страница 61: ...ntroller information tables 2SHUDWLRQ VZLWFKLQJ RUN light Operation switching Display pattern when in service mode Operation switching when there is an abnormal stop 0 1 2 4 3 AUTO DRY COOL FAN HEAT D...

Страница 62: ...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...

Страница 63: ...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 I QR GDWD DUH UHFRUGHG HUURU FRGH LV QRUPDO WKH GLVSOD IR...

Страница 64: ...63 11 SCM SM 110 Service data record form 55...

Страница 65: ...0 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 Temperatu...

Страница 66: ...re at 20 C SCM100 125 0 293 or more at 20 C sub main main main Limit switch anomaly SRK20 25 35 50 60ZJX only Defective limit switch defective indoor control PCB Defective air inlet panel set Is the a...

Страница 67: ...SCM SM 110 Over heat of compressor Gas shortage defective discharge pipe sensor Error of signal transmission Wiring error including power cable defective indoor outdoor PCB 64 main indoor indoor outdo...

Страница 68: ...r 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 the fan...

Страница 69: ...sensor operation Failure mode Control input circuit resding Air conditioning system operation See pages 65 Note 1 SRK35ZJR S 35 50ZJ S 50 60ZJX S1 71ZK S SRF25 35 50 only main Has an overflow develop...

Страница 70: ...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 280V DC several V 4 6 V CNU GND Blue Yellow White Black Red...

Страница 71: ...g 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 shown in the fi...

Страница 72: ...n page 64 Power source and serial signal inspection 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...

Страница 73: ...pection 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 76...

Страница 74: ...l 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 76 Color Marks Mark Color BK BR...

Страница 75: ...3 Circuit breaker Earth leakage breaker TB1 PWB5 NOISE PWB3 CT1 DS L A F PWB2 INV PWB IPM 30A 600V CM F2 PWB1 CONTROL PWB PWB4 SUB PWB C1 EEV A EEV B EEV C EEV D EEV E TB2 TB3 Tho R Tho D Tho S Tho A...

Страница 76: ...1 2 3 1 2 3 1 2 3 1 2 3 Circuit breaker Earth leakage breaker TB1 PWB5 NOISE PWB3 CT1 DS L A F PWB2 INV PWB IPM 30A 600V CM F PWB1 CONTROL PWB PWB4 SUB PWB C1 EEV A EEV B EEV C EEV D EEV E EEV F TB2...

Страница 77: ...V DC15V Measuring point Resistance when normal DC several V 0 6V DC several V 0 5V DC280V DC15V Outdoor main PCB GND DC280V Red Blue 20 M or higher 20 k or higher Brown Blue Measuring point Resistance...

Страница 78: ...oor contact of temperature thermistor connector Replacement repair of temper ature thermistor 107 Indoor control PCB Defective indoor control PCB Defective temperature thermistor input circuit Replace...

Страница 79: ...eplacement repair of temperature sensor 121 Outdoor main PCB Defective outdoor main PCB Defective temperature sensor input circuit Replacement of PCB Stays OFF Keeps flashing 1 time flash Outdoor main...

Страница 80: ...tion Heating operation status Higher outdoor high pressure Repair 122 High pressure sensor Defective high pressure sensor Replacement repair of temperature sensor Outdoor control PCB Defective outdoor...

Страница 81: ...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...

Страница 82: ...anger 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 i...

Страница 83: ...rol PCB Parts mounting are different by the kind of PCB ON OFF Part number SW2 Blue Address setting SW7 Function setting CNT Blue External switch CNJ White Louver motor CNN Yellow Thermistor Heat exch...

Страница 84: ...wirings to the PCB Wiring 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 Sc...

Страница 85: ...SW6 Select the same capacity with the PCB removed from the unit Replace the PCB 1 Fix the PCB so as not to pitch the cords 2 Connect connectors to the PCB Connect a cable connector with the PCB conne...

Страница 86: ...and connect it Control PCB Parts mounting are different by the kind of PCB ON OFF item switch Address SW2 Content of control Plural indoor units control by 1 remote controller Test run SW7 1 Normal Op...

Страница 87: ...ted to the connector are removed 3 Fix the board such that it will not pinch any of the wires 4 Reconnect the wirings to the PCB Wiring connector color should match with the color of connector of the...

Страница 88: ...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...

Страница 89: ...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...

Страница 90: ...dgment 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 checker 4 Stop check operation...

Страница 91: ...units more than 17 units by controlling with one remote controller 111 E16 Indoor fan motor anomaly FDTC and FDUM only 112 E19 Indoor unit operation check drain motor check setting error 113 E20 Indo...

Страница 92: ...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...

Страница 93: ...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...

Страница 94: ...pressor Immediately after installation or when the unit has been left for long time without power supply the insulation resistance may drop to a few M because of refrigerant migrated in the compressor...

Страница 95: ...s into 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 ap...

Страница 96: ...rough inside 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 sto...

Страница 97: ...ntrusion 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...

Страница 98: ...ring broken Is LM 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 wait...

Страница 99: ...S IsAC19V or higher detected between Red Red CNW2 at transformer secondary side YES YES NO 3 FDTC FDUM Series FDEN Series Note 3 for GND NO NO Is DC5V detected between of CNW2 FDUM CNW1 NO YES YES Is...

Страница 100: ...tected between X Y of indoor unit terminal block YES YES YES NO Is 24V or higher between Brown Brown of transformer secondary side Is DC180V between of CNW2 FDUM CNW1 FDEN Series FDTC FDUM Series YES...

Страница 101: ...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...

Страница 102: ...r 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 con...

Страница 103: ...l block NO Is approx DC20V detected between on the indoor unit terminal block NO YES WAIT YES YES YES YES To next page Defective outdoor sub PCB Replace Defective indoor control PCB Replace Replace in...

Страница 104: ...eplacing the power supply fuse Diagnosis Countermeasure Replace the outdoor sub PCB YES YES NO YES Replace the outdoor main PCB Replace the reactor Isn t there a short circuit between phases of outdoo...

Страница 105: ...wires at the remote 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...

Страница 106: ...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...

Страница 107: ...nection 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 si...

Страница 108: ...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...

Страница 109: ...rrect Connect connector Defective return air temperature thermistor Replace Defective indoor control PCB Replace Defective return air temperature thermistor input circuit 2 Error detection method Anom...

Страница 110: ...r heat exchanger temperature thermistor see the error display E6 YES NO YES NO Error stop Reset Indoor heat exchanger temperature C 56 63 For the characteristics of indoor heat exchanger temperature r...

Страница 111: ...iping unclogged Is the drain pipe slop OK NO YES NO NO Check float switch Defective indoor control PCB Replace Defective indoor control PCB Replace Check optional equipment Correct setting to Humidifi...

Страница 112: ...odel 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 E...

Страница 113: ...terial Replace the fan motor 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...

Страница 114: ...door 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 i...

Страница 115: ...er supply reset Remove foreign material Replace the fan motor Check power voltage Replace faulty fan motor and power PCB Replace fan motor If the error persists after replacing the fan motor replace t...

Страница 116: ...ter 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 tem...

Страница 117: ...ion of outdoor unit short circuited Are installation spaces adequate Isn t there any fouling or clogging on heater exchanger Control operation check Defective outdoor main PCB Replace Excessive refrig...

Страница 118: ...n heater exchanger Control operation check Defective outdoor control PCB Replace Excessive refrigerant amount Recharge refrigerant by weighing proper amount on a scale 2 Error detection method For the...

Страница 119: ...O NO Replace discharge pipe temperature sensor Insufficient refrigerant amount Recharge refrigerant by weighing proper amount on a scale Control operation check Defective outdoor main control PCB Repl...

Страница 120: ...ect connector Defective outdoor heat exchanger temperature sensor Replace Defective outdoor main control PCB Replace Defective outdoor heat exchanger temperature sensor input circuit 2 Error detection...

Страница 121: ...nector Defective outdoor air temperature sensor Replace Defective outdoor main control PCB Replace Defective outdoor air temperature sensor input circuit 2 Error detection method Detection of anomalou...

Страница 122: ...C Broken wire Shot circuit Correct connector Defective discharge pipe temperature sensor Replace Defective outdoor main control PCB Replace Defective temperature sensor input circuit 2 Error detectio...

Страница 123: ...n heater exchanger Control operation check Defective outdoor control PCB Replace Excessive refrigerant amount Recharge refrigerant by weighing proper amount on a scale 2 Error detection method For the...

Страница 124: ...ransistor temperature thermistor connector connection OK Is it OK the fixing to power transistor radiator fin Does it recur NO 0 20 40 60 80 100 120 140 160 180 200 0 20 40 60 80 100 120 140 Temperatu...

Страница 125: ...re at 20 C 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 r...

Страница 126: ...fully opened Is 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...

Страница 127: ...he 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 securely De...

Страница 128: ...on the outdoor sub PCB 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...

Страница 129: ...unction 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 l...

Страница 130: ...60 71 80 only Diagnosis 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...

Страница 131: ...he control PCB side after disconnecting the connector CNI4 Is DC15V detected on the fan motor connector YES YES YES NO NO Defective inverter PCB Replace Broken harness wire Replace fan motor Defective...

Страница 132: ...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...

Страница 133: ...place Defective high pressure sensor input circuit OK 2 Error detection method When anomalous voltage pressure is detected 3 Condition of Error displayed If the pressure sensor detects 0V or lower and...

Страница 134: ...0 30 40 20 50 Temperature thermistor resistance k Temperature C 5k at 25 C Broken wire Shot circuit Open fully Correct indoor heat exchanger return air temperature thermistor connector connections Def...

Страница 135: ...pressor speed of 30 rps or under Same as above Excessive refrigerant amount Indoor outdoor unit installation spaces Faulty compressor Defective outdor air temp sensor Defective outdoor main PCB Diagno...

Страница 136: ...age Check refrigerant amount and refrigerant circuit Repalce compressor Defective outdoor main PCB Replace Defective outdoor main PCB Replace Repalce compressor 2 Error detection method If it fails to...

Страница 137: ...compressor for insulation resistance Replace compressor if necessary Defective outdoor main PCB Replace 2 Error detection method Compressor rotor position 3 Condition of Error displayed If it fails a...

Страница 138: ...flash Over heat of compressor 6 Time flash Error of signal transmission 7 Time flash Lock of compressor 8 Time flash Sensor error Except discharge pipe sensor Four sec light and Discharge pipe sensor...

Страница 139: ...anger sensor Outdoor air temp sensor Discharge pipe temp sensor CM Tho R Connector 20S 4 Way valve coil Suction pipe temp sensor Tho S FMo Fan motor Terminal block TB1 TB2 outdoor unit HEATER Crank ca...

Страница 140: ...duced 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 coil Rea...

Страница 141: ...ge port in the unit and the gas service valves are different during the cooling operation and the heating operation High pressure is replaced with the low pressure depending on whether it is in the co...

Страница 142: ...rge port in the unit and the gas service valves are different during the cooling operation and the heating operation High pressure is replaced with the low pressure depending on whether it is in the c...

Страница 143: ...5 5 5 5 IM RD WH RD WH BK BL Y Y G BK t Th2 1 Th2 2 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...

Страница 144: ...Red BL RD White WH Yellow Green Y G Yellow Y Color Mark t Th21 Th22 Th3 LM1 LM2 SM1 SM2 FMI Heat exch sensor Humidity sensor Fan motor Room temp sensor Flap motor Th1 Th2 Th3 Diode stack DS Fuse F FMI...

Страница 145: ...K UP SW 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 ex...

Страница 146: ...2 Th3 LM1 LM2 SM1 FMI DS t t TO OUTDOOR UNIT HEAT EXCHANGER 1 2 N 3 POWER WIRES SIGNAL WIRE 1 2 N 3 Power source 220 230 240V 50Hz T 8 Color Marks Blue Black BK Red BL RD White WH Yellow Green Y G Yel...

Страница 147: ...ock 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 BACK...

Страница 148: ...K Red BL RD White WH Yellow Green Y G Yellow Y Color Mark t Th21 Th22 Th3 DM1 DM2 SM1 SM2 FMI Heat exch sensor Humidity sensor Fan motor Room temp sensor Flap motor Th1 Th2 Th3 Diode stack DS Fuse F C...

Страница 149: ...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...

Страница 150: ...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...

Страница 151: ...ouver motor SW6 Model capacity setting 7 segment display Switches for setting SW1 LED2 Back up switch Operation Stop SW4 Indication lamp Green Normal operation LED3 Indication lamp Yellow Timer Inspec...

Страница 152: ...BK t BK 1 2 3 4 5 6 BK t BK 1 2 XR1 XR2 XR3 XR4 XR5 Remote operation Option 1 2 3 4 5 6 12 SW2 SW6 SW5 SW7 LED E2 LED E3 X Y 1 3 X Y t TB2 WH BK WH 8 9 10 11 12 8 9 10 11 12 CNW2 WH CNW1 WH CNB WH CNN...

Страница 153: ...Tho R Heat exchanger Heat exchanger Liquid line Gas line 6 35 6 35 9 52 9 52 Strainer Humidity sensor 1 Compressor 4 way valve Service valve Liquid Capillary tube Capillary tube Electric expansion va...

Страница 154: ...ho A Accumlator Sensor Tho S Service valve Liquid Electronic expansion valve Compressor 4way valve Discharge Suction Sensor Tho R Heat exchanger Cooling cycle Heating cycle 9 52 or 12 7 9 52 or 12 7 9...

Страница 155: ...EEVC EEVB Strainer Discharge Suction Sensor Tho D Receiver Sensor Tho S Service valve Liquid Electronic expansion valve Compressor Oil separator 4way valve Sensor Heat exchanger Tho A Sensor Tho R Ca...

Страница 156: ...arge Suction Receiver HPS Service valve Liquid Electronic expansion valve Electronic expansion valve EEV H Compressor Oil separator 4way valve Thermistor Heat exchanger Tho A Accumlator Accumlator 1 G...

Страница 157: ...iver HPS Service valve Liquid Electronic expansion valve Electronic expansion valve EEV H Compressor Oil separator 4way valve Heat exchanger Accumlator Accumlator 1 Gas line 20 25 35 type 9 52 50 60 t...

Страница 158: ...Incorrect installation may result in overheating and fire Use the prescribed cables for electrical connection tighten the cables securely in terminal block and relieve the cables correctly to prevent...

Страница 159: ...at it cannot tall the service ting and fire al connection block and overloading the n cause or fire due to y in the event of a risk of electric o the unexpected the pipe after wn work or is in operati...

Страница 160: ...so that dust and sand do not enter the pipe until they are When connecting the pipes to the outdoor unit be careful about the discharge of fluorocarbon Make sure to match the pipes between the indoor...

Страница 161: ...rning 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 following the insta...

Страница 162: ...box Install the service panel correctly Incorrect installation may result in overheating and fire Use the prescribed cables for electrical connection tighten the cables securely in terminal block and...

Страница 163: ...tion ied with the units es between shocks due to main power or switch f at least 3mm so that it cannot tall the service ting and fire al connection block and overloading the n cause or fire due to y i...

Страница 164: ...ypr 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 2 0 12 7 0 0 0 5 1 0 1 5 2 0 2 5 Securely fit the...

Страница 165: ...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...

Страница 166: ...E mSF t 6TF UIF QSFTDSJCFE DBCMFT GPS FMFDUSJDBM DPOOFDUJPO UJHIUFO UIF DBCMFT TFDVSFMZ JO UFSNJOBM CMPDL BOE SFMJFWF UIF DBCMFT DPSSFDUMZ UP QSFWFOU PWFSMPBEJOH UIF UFSNJOBM CMPDLT PPTF DPOOFDUJPOT P...

Страница 167: ...L BOE PWFSMPBEJOH UIF BO DBVTF PS mSF EVF UP Z JO UIF FWFOU PG B SJTL PG FMFDUSJD UP UIF VOFYQFDUFE H UIF QJQF BGUFS PXO XPSL TPS JT JO PQFSBUJPO NJYFE JO UIF MPTJPO BOE JOKVSJFT JOH DZDMF IF JOTUBMMB...

Страница 168: ...se note that measurement B protrusion from 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 instrumen...

Страница 169: ...UI DBCMF UP UIF GPMMPXJOH TVCTUBODFT DBVTFT EBOHFSPVT GBJMVSFT UIFSFGPSF JU TIBMM OFWFS CF EPOF JUZ XBUFS QJQF 5PXO HBT QJQF 57 BOUFOOB MJHIUOJOH DPOEVDUPS UFMFQIPOFMJOF FUD IFDL UIF GPMMPXJOH QPJOUT...

Страница 170: ...stall the service panel correctly Incorrect installation may result in overheating and fire Use the prescribed cables for electrical connection tighten the cables securely in terminal block and reliev...

Страница 171: ...Examples of installation mm L1 L2 L3 Open 300 150 Open 5 300 500 Open 150 Demensions any user can read by using suitable t the high position 2A918 C CONDITIONER lied with the units es between shocks...

Страница 172: ...4 1 8kgf m Gas side 9 52 33 0 42 0N m 3 3 4 2kgf m 12 7 49 0 61 0N m 4 9 6 1kgf m 15 88 68 0 82 0N m 6 8 8 2kgf m piping length hight difference length of chargeless refrigerant pipe one indoor unit M...

Страница 173: ...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 following the installation manual If the compressor does not operate afte...

Страница 174: ...installation place For installation work be careful not to get injured with the heat exchanger piping flare portion or screws etc Be sure to insulate the refrigerant pipes so as not to condense the a...

Страница 175: ...ion or the radio To prevent interference to images and sounds Places where this unit is not affected by the high frequency equipment or electric equipment Avoid installing this unit in place where the...

Страница 176: ...ched insulation pad placed over the heat insulating material s slit area Vinyl tape Use an attached insulation pad for heat insulation Position it so that the slit area faces upward Connect the pipes...

Страница 177: ...of indoor unit Installing the air cleaning filters Open the air inlet panel Remove the service panel Remove the wiring clamp Connect the connecting wire securely to the terminal block 1 Connect the co...

Страница 178: ...air moisture on them Insufficient insulation can cause condensation which can lead to moisture damage on the ceiling floor furniture and any other valuables When perform the air conditioner operation...

Страница 179: ...th 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 be carried out by the qualified...

Страница 180: ...tional 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 pipe...

Страница 181: ...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 pipe gauge or a similar instrument...

Страница 182: ...m Insufficient insulation can cause condensation which can lead to moisture damage on the ceiling floor furniture and any other valuables When perform the air conditioner operation cooling or drying o...

Страница 183: ...e flare nut were tightened with excess torque this may cause burst and refrigerant leakage after a long period The electrical installation must be carried out by the qualified electrician in accordanc...

Страница 184: ...s torque to the flared nuts Otherwise the flared nuts may check depending Arrange the drain hose in a downward angle Avoid the following drain piping Pour water to the drain pan located under the heat...

Страница 185: ...ed nuts may check depending CONCERNING TERMINAL CONNECTION FOR AN INTERFACE Remove the air inlet panel lid and front panel Remove the control cover Remove the screw There is a terminal respectively ma...

Страница 186: ...TUBMMBUJPO QMBDF t PS JOTUBMMBUJPO XPSL CF DBSFGVM OPU UP HFU JOKVSFE XJUI UIF IFBU FYDIBOHFS QJQJOH GMBSF QPSUJPO PS TDSFXT FUD t F TVSF UP JOTVMBUF UIF SFGSJHFSBOU QJQFT TP BT OPU UP DPOEFOTF UIF BN...

Страница 187: ...unit in place where there is much oil mist Places where there is no electric equipment or household under the installing unit Install the indoor unit on flat wall Wireless remote control In case of pi...

Страница 188: ...ch type Wing nut type CAUTION Do not apply excess torque to the flared nuts Otherwise the flared nuts may check depending CAUTION Do not pull with a force of larger than 5 kgf Be careful not to stress...

Страница 189: ...cable JP173 on the indoor circuit board to control the blow out angle Conventionally operate the remote control switch by holding in your hand Avoid installing it on a clay wall etc Cover 6 Battery I...

Страница 190: ...g port such as incorporate the air into the room that may appropriate to ventila tion For example Open the door a little In addition just as above so set up the opening port if the room lapse into neg...

Страница 191: ...city for power distribution work Unconformable cables can cause electric leak anomalous heat production or fire This appliance must be connected to main power supply by means of a circuit breaker or s...

Страница 192: ...re using the wiring clamp Attach the control lid Clamp Control lid Use a flare tool designed for R410A or a conventional flare tool Please note that measurement B protrusion from the flaring block wil...

Страница 193: ...conditioner Clamps Beams Secure the ceiling hanging bolts firmly following the illustrations and other instructions Installing the main unit Attach the washers and nuts to the ceiling hanging bolts A...

Страница 194: ...193 11 SCM SM 110 4 Ceiling cassette 4way compact type FDTC refer to page 157 to 172...

Страница 195: ...00mm or more 1000mm or more 2500mm or more Obstacle Floor Preparation before installation l If suspension bolt becomes longer do reinforcement of earthquake resistant For grid ceiling When suspension...

Страница 196: ...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 nut Drain hose 2 Prepare a joint for connecting...

Страница 197: ...e 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 l Use specified cord faste...

Страница 198: ...197 11 SCM SM 110 PJAO12D786...

Страница 199: ...0 5 7 5 7 Note This function is not able to be set with wireless remote controls or simple remote control RCH H3 5 7 5 7 For setting the swing range of other louvers return to 1 and proceed same proce...

Страница 200: ...rcuit Earth leakage breaker must be installed If the earth leakage breaker is not installed it can cause fire and electric shocks Use the circuit breaker of correct capacity Circuit breaker should be...

Страница 201: ...there is no influence by the heat which cookware generates Areas where not exposed to oil mist powder and or steam directly such as above fryer Areas where lighting device such as fluorescent light or...

Страница 202: ...with putty etc to shut off dust Bend the pipe with as big radius as possible and do not bend the pipe repeatedly In addition do not twist and crush the pipes Do a flare connection as follows Make sure...

Страница 203: ...upper limit of the movable range 6 Press or button selection of upper limit position Select the upper limit of louver movable range position 1 is the most horizontal and position 6 is the most downwar...

Страница 204: ...r unit near the location where there is possibility of flammable gas leakages If the gas leaks and gathers around the unit it could cause fire Do not install and use the unit where corrosive gas such...

Страница 205: ...nd services Notes a There must not be obstacle to draw out fan motor marked area b Install refrigerant pipe drain pipe and wiring so as not to cross marked area If suspension bolt becomes longer do re...

Страница 206: ...ng sputtering is attached to the main body of the air conditioner on the outlet port Do not remove it until connecting the duct An air filter can be provided on the main body of the air conditioner on...

Страница 207: ...over small size clamps and part of the drain hose and fix and wrap it with tapes to wrap and make joint part gapless When sharing a drain pipe for more than one unit lay the main pipe 100mm below the...

Страница 208: ...remote controller Indoor unit will control fan speed to keep rated air flow volume at each fan speed setting Lo Uhi 1 MANUAL SETTING You can set required E S P by wired remote controller that calculat...

Страница 209: ...supported securely and handled with care not to drop when it is necessary toreplace Notes 2 For the maintenance space to page 204 a Remove the control box and the side panel and remove the screws mar...

Страница 210: ...some data 18 Trial run Cooling operation signal is sent to the indoor unit 19 Forced operation of drain pump Forced operation of drain pump is sent to the indoor unit Option parts for SRR 20 Setting...

Страница 211: ...iodic check signal is received RAC unit does not have this function 40 Display of check Display of checking in case of signal of error code address from remote control RAC unit does not have this func...

Страница 212: ...d remove the service panel 3 After removal of service panel Loosen a screw 4 And then loosen 4 screws and remove the front panel together with the fan guard 5 Loosen a nut and remove the fan propeller...

Страница 213: ...sen screws and remove the service panel and top panel 2 Loosen screws and remove the cover and the terminal cover 3 Loosen screws and disconnect all power cables locally installed Caution Be sure to d...

Страница 214: ...remove the side panel 5 Untie the string and remove rear and front insulation cover 6 Disconnect the connector of crankcase heater Rear cover Front cover Side panel Side view Rear view Screws Screws...

Страница 215: ...ver and the side jacket of compressor 8 Remove the crankcase heater It is available to remove the crankcase heater after removing the compressor 9 Loosen 3 nuts of compressor fixing bolts Top cover Si...

Страница 216: ...suction and discharger pipes to remove the compressor Caution When brazing do not forget to disconnect suction pipe temperature sensor Tho S and discharge pipe temperature sensor Tho D from sockets W...

Страница 217: ...x 3 Disconnect the connector of CNFAN Note Be sure to do following work after elapsing 3 minutes from power OFF Disconnect the connector of CNFAN 4 Loosen 6 screws and lift up the main PCB 2 Latches o...

Страница 218: ...the 4 way valve Disconnect the connector of fan motor CNFAN Disconnect the connector of CNSUB Going to Sub PCB Disconnect the connector of CNTH For Tho A Outdoor air temp Tho R Heat exch temp Tho D D...

Страница 219: ...218 11 SCM SM 110 Main PCB upper layer Layout of Main PCB Main PCB Part side Pattern side CNFAN CNTH CN20V Fuse CNSUB U Pink V White W Gray R Black S White C 2 Red S 2 White...

Страница 220: ...sconnect the connectors of CNA CNB CNC and CND 2 Loosen screws and disconnect the grounding cables 3 Disconnect the fasten connector of the black cable Note Be sure to do above work after elapsing 3 m...

Страница 221: ...er 6 Loosen 4 screws and remove Sub PCB Layout of Sub PCB Black cable White cable to N terminal Pattern side CN20S CNHEAT CN20V CNEEV2 CNMAIN CNTH CNEEV1 RO BK SO WH C 1 RD S 1 WH Screws Screws CNA CN...

Страница 222: ...n disconnecting the connector be sure to check the color marked on the top of coil and the color of the connector 2 When replace to a new coil be sure to insert the socket attached to the coil to the...

Страница 223: ...222 11 SCM SM 110 4 way valve coil 1 Disconnect the connector 2 Loosen a screw and remove the coil Connector Screw Coil...

Страница 224: ...remove the fan grille 2 Loosen the nut and remove the fan propeller 3 Remove the service panel 4 Detach the clamps and cut off the strap 5 Disconnect the connector of CNFAN1 6 Pull out the cable of fa...

Страница 225: ...and top panel 2 Loosen screws and remove the cover and the terminal cover 3 Loosen screws and disconnect all cables locally installed Caution Be sure to do above work after turning the power OFF by b...

Страница 226: ...onnect the faston connectors from compressor U Red cable V White cable W Blue cable Note Be sure to do above work after elapsing 3 minutes from power OFF 8 Cut off the strap and pull out the thermisto...

Страница 227: ...connectors shown in the photo 10 Remove the control unit Continue 2 Loosen the screws 5 pieces shown in the photo 3 Remove the control unit CNF PK 125 only CNE OR CND OR CNCBL CNB BR CNA RD CNEEV1 CN...

Страница 228: ...fan motor through the hole on the partition 3 Remove the partition as shown in photo 12 Untie the strings and remove the upper and the lower jackets for compressor Note Be sure to remove the wires of...

Страница 229: ...17 Replace to new compressor Note Before placing the new compressor be sure to mount the crankcase heater onto the new compressor properly Control PCB PWB1 on the 1st layer 1 Cut the straps of the wh...

Страница 230: ...onnector 3 from the diode stack 4 Disconnect the connector 3 White cable from the diode stack on the 2nd layer Note Be sure to do this work after elapsing 3 minutes from power OFF 5 Take the white cab...

Страница 231: ...Be sure to do this work after elapsing 3 minutes from power OFF Control PCB Part side Pattern side CNEEV1 CNFAN1 CNI1 CNA1 CNW CNL1 CNS1 CNP1 CNI3 CNX1 CNTH CNN1 CNA2 CNR1 CNA RD CNB BR CND YE CNE OR...

Страница 232: ...to the dismounting procedure for control PCB after loosening 2 screws and disconnect the power cables on secondary side of TB1 2 Loosen 2 screws and remove the cables Red White from TB3 TB4 on the N...

Страница 233: ...cables of P1 P2 P3 and N1 N2 N3 4 Disconnect 3 connectors of CNI2 CNI4 and CNACT1 5 Loosen 2 screws for fixing IPM and radiation fin 6 Pinch the head of locking supports 8 pieces and remove the Invert...

Страница 234: ...er according to the procedure for control PCB PWB1 and Sub PCB PWB4 2 Loosen 5 screws and disconnect the cables of TB3 TB7 3 Pinch the head of locking supports 4 pieces and remove the N F PCB PWB3 Not...

Страница 235: ...onnector be sure to check the color marked on the top of coil and the color of the connector 2 When replace to a new coil be sure to insert the socket attached to the coil to the pipe correctly EEVB E...

Страница 236: ...235 11 SCM SM 110 8 CHECKING PROCEDURE 8 1 Models SCM71ZJ S1 80ZJ S1 Fan motor Compressor CNFAN1 on PCB1 WH OR BR BL RD NO Output 280VDC 15VDC 0 6VDC 0 5VDC Resistance 1 154 U Pink V White W Gray...

Страница 237: ...236 11 SCM SM 110 EEVB EEVC EEVA EEVD MARKING GREEN BLUE RED WHITE EEV A EEV D 46 WH 46 46 46 M YE OR BL RD Input 12VDC...

Страница 238: ...nsor 25 90 Tho R Black 4 6 Tho A Black Tho D Black Black 5 0 5 0 Tho S 5 0 Name Color Resistance k Suction pipe temp sensor Tho S Outdoor air temp sensor Tho A Heat exchanger sensor Tho R Discharge pi...

Страница 239: ...0S is ON CNSUB 3 4 0 1VDC When CH is ON CNSUB 5 4 5VDC R S RO SO of SUB PCB 220 240VAC C 2 S 2 C 1 S 1 of SUB PCB 20VDC CN20V CN20V of SUB PCB 20VDC CNTH Sensor Tho R Tho A Tho D U Compressor V Compre...

Страница 240: ...e Indoor unit C 220 240VAC Power supply CNC Blue Indoor unit C 0VAC Earth CND Black White Indoor unit D 220 240VAC Power supply CND Yellow Indoor unit D 0VAC Earth CN20S 20S 220 240VAC For 4 way valve...

Страница 241: ...EEVE MARKING YELLOW BLACK GREEN BLUE RED WHITE Fan motor EEVA EEVF EEV H 46 WH 46 46 46 M YE OR BL RD Input 12VDC 46 WH 46 46 46 M YE OR BL RD Input 12VDC CNFAN1 on PCB1 RD BL BR OR WH NO Output 280VD...

Страница 242: ...V WH U RD 0 25 50 90 Tho R Black 16 4 5 0 1 8 Tho D Black 54 8 5 0 Tho S Black 16 4 5 0 1 8 Tho A Yellow 32 8 10 0 Tho AF Black 5 0 Name Color Resistance k Suction pipe temp thermistor Tho S Outdoor...

Страница 243: ...valve CNR1 Crankcase heater 220 240VAC CNA2 280VDC green P white N CNFAN1 fan motor Refer to page 240 CNI1 CNI2 on PCB2 1 2 5VDC 1 3 0 5VDC 1 4 0 5VDC CNS1 CNS2 on SUB PCB 13VDC CNL1 High preassure se...

Страница 244: ...C CNI2 CNI1 on PCB1 1 2 5VDC 1 3 0 5VDC 1 4 0 5VDC CNI4 CNI3 on PCB1 1 3 18VDC 2 3 15VDC CNACT1 Active filter module 1 2 15VDC 1 3 0 5VDC 1 4 0 3VDC SUB PCB PCB3 Connector Connected to Normal value Re...

Страница 245: ...125 only CNE For indoor unit CND For indoor unit CNC For indoor unit CNB For indoor unit CNA For indoor unit CNDRM TB8 CNTRO 30VAC CNTRI 0 21VDC L IN N IN 220 240VAC SUB PCB PCB5 Connector Connected t...

Страница 246: ...geration Systems Headquarters 16 5 Konan 2 chome Minato ku Tokyo 108 8215 Japan http www mhi co jp Copyright MITSUBISHI HEAVY INDUSTRIES LTD Because of our policy of continuous improvement we reserve...

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