Mitsubishi Electronics PCH30GK, PCH24GK OC277-22, Model PCH24/30/36/42GK Wiring Diagram

Page 22

7

WIRING DIAGRAM

MODEL PCH24/30/36/42GK WIRING DIAGRAM

 

 

 

 

 

(AC208/230V)

 

P.B

 

 

 

 

 

 

 

 

 

CNSK

(DC13.1V)

 

 

 

 

 

 

 

 

 

 

CN2S

 

 

 

 

 

 

MF

 

(RED) TRANS

 

 

 

 

 

 

 

(WHT)

 

 

 

 

 

1

2

3

 

3

 

2

 

 

 

 

 

 

2

 

 

 

 

 

 

 

C

 

 

 

1

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I.B

RED

WHT

BLK

BLK WHT

 

 

RED BLU

BLK WHT

 

 

 

1 3 5

1 3

POWER

 

POWER

1 3

1 2

VANE

 

FAN

CNDK

 

CND

CN6V

6

(WHT)

 

 

 

(WHT)

 

(RED)

 

CN2D

(WHT)

 

 

 

 

 

X4

 

 

F2

F1

(WHT)

 

 

 

 

 

 

 

 

 

WIRELESS

 

 

 

 

 

 

 

 

 

 

 

 

FC

 

 

 

X4

 

 

 

ZNR

 

CN90

 

 

 

 

 

 

 

 

 

 

 

(WHT)

 

TB2

RED L1

BLU L2

GR

GRN/YLW

6

MV

9

POWER SUPPLY ~(1PHASE) AC208/230V 60Hz

W.B

BZ CNB

MODELS

24GK

30GK

36GK

42GK

SW7

1 2 3

ON

OFF

1 2 3

ON

OFF

1 2 3

ON

OFF

1 2 3

ON

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED1 LED2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SW3

 

 

 

 

 

 

 

 

 

 

 

 

 

SW9

CENTRALLY

 

REMOCON 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REMOCON

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

CONTROL

 

POWER

3

BLU

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

CN51

 

CN40

2

CN22

2

 

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(BLU)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

12345

 

 

 

(WHT)

1

1

 

 

SW2

 

 

 

SW5

 

SW8

 

 

 

SW1

 

 

 

 

SW6

SW7

 

INTAKE PIPE

 

OUT

3

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

CN20

 

CN21 LOSSNAY DOOR

 

ORN

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(RED)

 

(WHT)

CN2L CN30

2

 

YLW

123456 1234

123456 123456789101234 123

 

1 2

 

1

2

 

 

(BLU)

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

 

 

 

 

 

RU

LED1 LED2 SW2 SW1

TB5

2

1TRANSMISSION WIRES DC12V

 

3

3

 

 

2

2

SW18

 

1

1

OFF

TB4

TRANSMISSION WIRES

 

ON

DC12V

TB3

87654321

 

 

OUTDOOR UNIT

SW17

 

 

 

OFF

 

 

 

ON

 

 

 

87654321

R.B

A01 B02

TB6

CN1

5 4 3 2 1

CN2

3 2 1

RT1 RT2

H

FS1 FS2

 

88H1

TB2

 

 

RED 1

RED 5

3

RED

L1

 

 

WHT 2

BLU 5

3

BLU

L2

 

 

 

 

88H2

 

 

POWER SUPPLY ~(1PHASE) AC208/230V 60Hz

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

P.B

INDOOR POWER BOARD

C

CAPACITOR(FAN MOTOR)

W.B

WIRELESS REMOTE CONTROLLER BOARD(OPTION)

I.B

INDOOR CONTROLLER BOARD MF

FAN MOTOR

 

RU

RECEIVING UNIT

 

CN2L

CONNECTOR(LOSSNAY)

MV

VANE MOTOR

 

BZ

BUZZER

 

CN51

CONNECTOR(CENTRALLY CONTROL) TB2

TERMINAL BLOCK(POWER)

 

LED1

LED(RUN INDICATOR)

 

FC

FAN PHASE CONTROL

TB4

TERMINAL BLOCK(INDOOR/OUTDOOR TRANSMISSION LINE)

 

LED2

LED(HOT ADJUST)

 

SW1

SWITCH(FUNCTION SELECTOR) TB5

TERMINAL BLOCK(REMOTE CONTROLLER

 

SW1

SWITCH(HEATING ON/OFF)

 

SW2

SWITCH(ADDRESS SELECTOR)

 

TRANSMISSION LINE)

 

SW2

SWITCH(COOLING ON/OFF)

 

SW3

SWITCH(EMERGENCY OPERATION) RT1

ROOM TEMP.THERMISTOR

HEATER

 

 

SW5

SWITCH(MODEL SELECTOR)

 

(32°F/15k",77°F/5.4k" DETECT)

 

FS1,2 THERMAL FUSE<243°F/16A:24GK>

 

SW6

SWITCH(TWIN/TRIPLE SELECTOR) RT2

PIPE TEMP.THERMISTOR/LIQUID

 

 

THERMAL FUSE<230°F/16A:30,36,42GK>

 

SW7

SWITCH(MODEL SELECTOR)

 

(32°F/15k",77°F/5.4k" DETECT)

 

H

HEATER

 

SW8

SWITCH(OPTION)

R.B

REMOTE CONTROLLER BOARD

 

26H

HEATER THERMAL SWITCH

 

SW9

SWITCH(MODEL SELECTOR)

CN1

CONNECTOR(PROGRAM TIMER)

 

88H1,2

HEATER CONTACTOR

 

X4

RELAY(FAN MOTOR)

CN2

CONNECTOR(REMOTE SWITCH)

 

 

 

 

F1,F2

FUSE(6A/250V)

SW17

SWITCH(ADDRESS SELECTOR)

 

 

 

 

ZNR

VARISTOR

SW18

SWITCH(FUNCTION SELECTOR)

 

 

 

 

LED1

LED(DC12V POWER)

TB6

TERMINAL BLOCK(REMOTE CONTROLLER

 

 

 

 

LED2

LED(DC5V POWER)

 

TRANSMISSION LINE)

 

 

 

 

 

 

HEATER

 

 

 

1 2

CN24

 

 

I.B

(YLW)

 

 

YLW YLW

 

 

GRY

6

RED 26H

 

8

88H1 7

RED

YLW

5

8

 

7

GRY

 

 

 

 

88H2

 

 

 

NOTES:

1.Since the indoor fan motor(MF)is connected with 230V power, using 208V power will require a setting change of the dip switch(SW8<I.B>) on

indoor controller board as shown in fig:*1.

 

 

 

 

 

 

 

 

fig:*1 Indoor fan motor(MF)for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208V.

SW8

 

 

 

 

 

 

ON

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

OFF

 

123456

 

123456

2.Since the outdoor side electric wiring may change, be sure to check the outdoor unit electric wiring for servicing. 3.Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.

4.Symbols used in wiring diagram above are,

:Connector, :Terminal block.

5.Emergency operation

 

If remote controller or microcomputer fails but there is no other trouble, emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor controller board.

6.Fasten terminal of the terminal board "TB4" equips lock system.

To remove the fasten terminal, pull it while pressing the protruding portion (locking lever) of the terminal. Connection of the fasten terminal, protruding portion should face upward.

[Check items]

(1)Make sure that no other trouble exist in the outdoor unit. Trouble with the outdoor unit prevents emergency operation.

(If any trouble exists in the outdoor unit error code "P8" will be displayed on the remote controller and the trouble position will be shown on the outdoor controller board LED. See electric wiring diagram of the outdoor unit for details.)

(2)Make sure that there is no trouble with the indoor fan.

Emergency operation will be continuous operation mode. (ON/OFF by the remote controller is not possible.) [Emergency operation procedure]

(1)Set the dip switch (SW3<I.B>) on the indoor controller board to on and off for cooling and · on for heating. (2)Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker.

(3)During emergency operation, indoor fan runs at high speed but automatic vane does not work.

(4)Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrosting for a long time. (5)Emergency cooling should be limited to 10 hours maximum. (The indoor unit heat exchanger may freeze.)

(6)After every emergency operation, set all dip switch (SW3<I.B>) to OFF.

(7)Movement of the vane does not work in emergency operation, therefore you have to slowly set them manually to the appropriate position.

OC277-22

Image 22
Contents Contents OC277-1Features OC277-2OC277-3 Easy Maintenance no Maintenance Necessary for 2500 HoursImproving Efficiency of Piping Work Part Names and Functions OC277-4Remote controller operation buttons OC277-5Remote controller display OC277-6OC277-7 SpecificationsModels PCH24GK, PCH30GK, PCH36GK, PCH42GK Models PCH24GK, PCH30GK, PCH36GK, PCH42GK Performance Data DataOC277-8 CFM SHC TPCOC277-9 CFMOC277-10 Performance CurveOC277-11 PCH36GK Cooling Capacity PCH36GK Heating CapacityOC277-12 Condensing Pressure and Suction PressureOC277-13 PCH30GKOC277-14 PCH36GKOC277-15 PCH42GKStandard Operation Data OC277-16SHF PCH24GK PCH30GK PCH36GK PCH42GK Outlet AIR Speed and Coverage Range OC277-17Operating Range Additional Refrigerant Charge R22ozPCH30GK OC277-18Noise Criterion Curves PCH24GK PCH36GK PCH42GKOC277-19 Outlines and DimensionsIndoor unit PCH24GK OC277-20 Indoor unit PCH30/36/42GKOC277-21 Refrigerant System DiagramRemote controller PCH30GK PCH36GK PCH42GKModel PCH24/30/36/42GK Wiring Diagram Wiring DiagramOC277-22 OC277-23 Operation FLOW-CHARTMain Operation OC277-24 Cooling OperationDRY OC277-25DRY Operation YESOC277-26 Heating OperationOC277-27 Microprocessor ControlOutline of Microprocessor Control Indoor Unit Control How to operateOC277-28 Compressor controlCoil frost protection OC277-29Start condition Termination conditionsSwing OC277-30Auto vane control Auto ReturnDetecting abnormalities in the outdoor unit OC277-31Range a Range B Range C OC277-32 DRY operation time chart How to operateDRY operation OC277-33 Heat operation Heat operation time chartOC277-34 Display in Heat operationBooster heater control OC277-35Overheat protection Overheat preventionOC277-36 Indoor coil temperature abnormality detectionDefrosting operation Temperature range Initial mode How to operateMode change OC277-37COOL/DRY operation OC277-38Auto return OC277-39 Timer operationTimer function Test run Before test runEmergency operation OC277-40Before emergency operation OC277-41 Dip switch functionsOn remote controller board On indoor controller boardPCH24GK PCH30GK PCH36GK PCH42GK SW7 OFF Fan motor max. rotational frequency Service RefOC277-42 PCH36, 42GKRemote Controller Display Abnormality Trouble ShootingOC277-43 OC277-44 When malfunction occurs during operationFor group control using one remote controller Example Check Unit code addressOC277-45 Cool Wrong Wiring on SiteOC277-46 HeatOC277-47 Other Troubles and CausesOC277-48 How to check the partsPCH OC277-49 Variety of System Control Functions System ControlOC277-50 PAC-SA89TA-EHow to set unit-address Group Control with a Single Remote ControllerHow to wire OC277-51How to set SW17-7 See Figure Control Using TWO Remote ControllersRemote ON-OFF and Individual Remote Controls Remote controller LCD indicationSwitch function of remote ON-OFF switch Individual Control by Grouping the Remote ControllersBasic wiring OC277-53OC277-54 Multiple Remote Control DisplayTimer Operation or the Operation by AN External Signal Auto Restart FunctionOC277-55 Disassembly ProcedurePCH24GK Operating Procedure Removing the air intake grilleRemoving the sirocco fan OC277-56Removing the fan motor Removing the side panelRemoving the vane motor Operating Procedure PhotosOC277-57 Removing the Indoor coil thermistorRemoving the guide vane OC277-58Removing the drain pan Remove the intake grilleRemoving the support heater OC277-59Removing the heat exchanger OC277-60 Parts ListStructural Part PCH24GK OC277-61 OC277-62 Structural Part PCH30GK PCH36GK PCH42GKOC277-63 OC277-64 FAN and Heater Parts PCH24GKOC277-65 FAN and Heater Parts PCH30GK PCH36GK PCH42GKOC277-66 Electrical Parts PCH24GK10 PCH30GK PCH36GK PCH42GKOptional Parts TimerOC277-67 Names and functions PAC-SC32PTA Weekly Timer Setting DisplayOC277-68 SET Back DisplayOC277-69 Timer AdapterMultiple Remote Controller Adapter Refrigerant PipesSpecifications are subject to change without notice