[1] Unit
9
• Models PRH-P8MYA/P10MYA
ELECTRICAL WIRING DIAGRAM
Symbol
Name
Symbol
Name
Symbol
Name
IN
DOOR
-SIDE
OUT
DOOR
-SIDE
SURGE KILLER
COND/EVA TEMP
LIQUID PIPE TEMP
ROOM TEMP
COND/EVA TEMP
DISCHARGE TEMP
THERMISTOR
FERRITE CORE
FB1,FB2
CR
TH6
TH5
TH4
TH3
TH2
TH1
LIQUID PIPE TEMP
PRESSURE SWITCH (FOR CONTROL)
PRESSURE SWITCH (HIGH PRESSURE)
OVER CURRENT RELAY (INDOOR-SIDE FAN MOTOR)
FAN MOTOR (INDOOR-SIDE)
TERMINAL BLOCK
ELECTRONIC EXPANSION VALVE
CRANK CASE HEATER (COMPRESSOR)
SOLENOID VALVE
4-WAY VALVE
FAN MOTOR (OUTDOOR-SIDE)
PRESSURE SWITCH (LOW PRESSURE)
MAGNETIC CONTACTOR (COMPRESSOR)
MAGNETIC CONTACTOR (INDOOR-SIDE FAN MOTOR)
52F
51F
MF1
TB1,5
LEV
CH
SV1
21S4
OVER CURRENT RELAY (COMPRESSOR)
COMPRESSOR MOTOR
TRANSFORMER
TR
MF2
MC
63H2
63H1
63L
52C
51C
FUSE (15A 250VAC CLASS T)
F1,F2
Symbol
Name
TERMINAL BLOCK
TB6
REMOTE CONTROLLER
LED (FOR SERVICE)
AUXILIARY RELAY
SWITCH
SW1-5
LED1
X01-X05
FUSE (6.3A 250VAC CLASS F)
F01-F04
FUSE (6.3A 250VAC CLASS F)
F10-F30
INDOOR-SIDE
CONTROLLER BOARD
X4-6
SW1
SW2
SWE
LED1
LED2
LED3
LED (TRANSMISSION<INDOOR-SIDE
·
OUTDOOR-SIDE>)
LED (POWER SUPPLY<REMOTE CONTROLLER>)
LED (POWER SUPPLY)
SWITCH (EMERGENCY OPERATION)
SWITCH (CAPACITY CORD)
SWITCH (MODEL SELECTION)
AUXILIARY RELAY
INDOOR-SIDE
POWER
BOARD
OUTDOOR-SIDE
CONTROLLER BOARD
N.F
BOARD
F1
ZNR
FUSE (4A 250VAC CLASS T)
VARISTOR
BLACK
(WITH INDOOR
POWER
BOARD)
BK
3
51F
PE
PE
CN90
CN2L
CN22
CN32
CN41
CN29
CN21
CN2D
DC14V
5
1
CN03
1
5
7
FAN
3
5
3 2 1
X4
X5
X6
LCD
F1
ZNR
CN01
CN02
52F
TH6
TH5
TH4
TB5
FB1
CN2S
DC14V
SWE
SW1
REMOTE CONTROLLER
LED1
LED2
LED3
DC
14V
CN
OFF
ON
1
2
3
4
(
*
3)SW2
CN20
4
OFF
ON
OFF
ON
1
2
3
4
INDOOR-SIDE
POWER BOARD
INDOOR-SIDE
CONTROLLER BOARD
FB2
REMOTE CONTROLLER
BOARD
1
2
RETURN AIR
DUCT
SUPPLY AIR
DUCT
CR
3
2
3
2
1
1
1
1
2
3
4
2
1
1
2
3
1
2
1
2
2
9
5
1
2
X6
X5
1
X4
2
6
7
8
1
TB6
2
F1
F2
5
3
5
3
1
BLACK
WHITE
RED
CNIN
LED1
SW3
1 2
OFF
ON
3 4 5 6
(
*
2)SW5
6
5
1
1 2
OFF
ON
OUTDOOR-SIDE
CONTROLLER BOARD
1 2
OFF
ON
SW2
3 4
TR
SW1
SW4
OFF
C14
63H2
1
2
1
3
CN51
CN81
CN27
CN24
CN3D
DC POWER
SUPPLY
CN3N
CN3S
CN34
CN28
3
1
3
1
TRANSMISSION
CIRCIT
3
1
CNS3
CH
63L
63H1
SV1
21S4
TH3
TH2
TH1
LEV
X05
X02
X03
X01
1
2
CN4
1
2
CN3
1
2
CN2
CN40
CNMNT
CNVMNT
CNFG
F01
F04
F02
F03
1
3
CN20
CNFC1
CN52
CN53
CN25
CN26
X04
CN21
CN22
CN23
52C
52C
51C
7
1
1
6
1
5
1
3
1
3
5
1
3
1
3
1
3
1
5
3
1
CNOUT1
PE
3
1
1
MF1
51F
52F
WHITE
1
BLUE
3
BLACK
RED
F30
WHITE
F20
F10
7
5
3
3
1
BLACK
CNOUT2
1
3
MC
L1
51C
52C
MF2
RED
TB1
ON
4
3
2
L2
5
L3 N PE
PE
(
*
1)
6
POWER SUPPLY
3N
~PE
380/400/415V
50HZ
3
1
CNPOW
CNFC2
CNFAN
C11
CIRCUIT BREAKER
(FIELD SUPPLY)
PRH-P8MYA : 63A
PRH-P10MYA: 63A
N
L1
N.F.BOARD
L3
L2
PE
GREEN/YELLOW
F.C.
BOARD
C12
CONTROL BOX
Note:1. The dotted lines show field wiring.
2. Color of earth wire is yellow and green twisting.
3. Specification subject to change without notice.
4.This motor(
*
1) includes auto reset type internal thermostat.
5. SW5(
*
2)[outdoor-side controller board] is shown
In case of PRH-P8MYA setting is shown as below.
PRH-P10MYA setting.
6. SW2(
*
3)[indoor-side controller board] is shown
In case of PRH-P8MYA setting is shown as below.
PRH-P10MYA setting.
7. Emergency operation
If a trouble occurs with either the remote controller or the unit
microcomputer and no other trouble exists, emergency operation for
cooling or heating can be performed by changing the setting of
switch (SWE) on the indoor-side controller board.
8. mark is connector.
Caution,
1. To protect compressor and fan
motor (indoor-side) from
abnormal current, over current
relays is installed. Therefore,
do not change factory over
current relays is installed.
Therefore, do not change
factory set value of over current
relays.
ON
OFF
SW5
(*2)
ON
OFF
SW2
4 3 2 1
(*3)
[intdoor-side controller board]
[outdoor-side controller board]
4
3
2
1
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