• Models PRH-P16MYA/P20MYA
[2] Skeleton of Transmission Line Connection
(1) System
Unit
Remote
controller
Transmission line
Symbol
Name
Symbol
Name
Symbol
Name
IN
DOOR
OUT
DOOR
SURGE KILLER
COND/EVA TEMP
LIQUID PIPE TEMP
ROOM TEMP
COND/EVA TEMP
DISCHARGE TEMP
THERMISTOR
FERRITE CORE
FB11,12,21,22
CR
TH6-1,TH6-2
TH5-1,TH5-2
TH4-1,TH4-2
TH3-1,TH3-2
TH2-1,TH2-2
TH1-1,TH1-2
LIQUID PIPE TEMP
PRESSURE SWITCH (FOR CONTROL)
PRESSURE SWITCH (HIGH PRESSURE)
OVER CURRENT RELAY (INDOOR FAN MOTOR)
FAN MOTOR (INDOOR)
TERMINAL BLOCK
ELECTRONIC EXPANSION VALVE
CRANK CASE HEATER (COMPRESSOR)
SOLENOID VALVE
4-WAY VALVE
FAN MOTOR (OUTDOOR)
PRESSURE SWITCH (LOW PRESSURE)
MAGNETIC CONTACTOR (COMPRESSOR)
51F
MF1
TB1,5,11,21
LEV1,LEV2
CH1,CH2
SV11,SV12
21S41,21S42
MAGNETIC CONTACTOR (INDOOR FAN MOTOR)
52F
OVER CURRENT RELAY (COMPRESSOR)
TR1,TR2
MF21,MF22
MC1,MC2
63H21,63H22
63H11,63H12
63L1,63L2
52C1,52C2
51C1,51C2
COMPRESSOR MOTOR
F11,12,21,22
TRANSFORMER
FUSE (15A 250VAC CLASS T)
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
CONTROLLER BOARD
X4-6
SW1
SW2
SWE
LED1
LED2
LED3
LED (TRANSMISSION<INDOOR
·
OUTDOOR>)
LED (POWER SUPPLY<REMOTE CONTROLLER>)
LED (POWER SUPPLY)
SWITCH (EMERGENCY OPERATION)
SWITCH (CAPACITY CORD)
SWITCH (MODEL SELECTION)
AUXILIARY RELAY
INDOOR
POWER
BOARD
OUTDOOR
MAIN BOARD
N.F
BOARD
F1
ZNR
FUSE (4A 250VAC CLASS T)
VARISTOR
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 main board] shows PRH-P20MYA setting.
Control box no.1
In case of PRH-P16MYA setting is shown as below.
6. SW2(
*
3)[indoor controller board] shows
In case of PRH-P16MYA setting is shown as below.
PRH-P20MYA 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 controller board.
8. mark is connector.
Caution,
1. To protect compressor and fan
motor (indoor) from abnormal
current, 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 controller board]
[outdoor main board]
4
3
2
1
Control box no.2
ON
OFF
SW5
(*2)
[outdoor main board]
4
3
2
1
CONTROL BOX NO.2
CONTROL BOX NO.1
BLACK
WHITE
RED
1
3
C19
X22
1
2
1
2
3
6
3
1
GREEN/YELLOW
BLUE
BLACK
WHITE
RED
L1
L2
L3
N
PE
1
2
2
1
X11
6
3
3
1
PE
N
L3
L2
L1
6
5
4
3
2
1
1
2
3
4
5
6
TB1
POWER SUPPLY
3N~PE
380/400/415V
50HZ
L1
L2
L3
63H22
LED1
SW3
(*2)SW5
OUTDOOR MAIN BOARD
OFF
ON
SW2
TR2
SW1
SW4
OFF
C14
1
3
CN51
CN3D
DC POWER
SUPPLY
CN34
CN28
3
1
TRANSMISSION
CIRCUIT
3
1
CNS3
CH2
63L2
63H12
21S42
TH3-2
LEV2
X05
X02
X03
X01
1
2
CN4
CNMNT
CNVMNT
CNFG
F01
1
3
CN20
CNFC1
CN52
X04
52C2
51C2
1
ON
L3
2
1
2
1
TH2-2
TH1-2
CN3
CN2
CN40
CN3S
CN3N
CN24
CN27
CN81
1
2
1
3
F04 F02 F03
3
5
7
L2
N
L1
6
1
5
1
CN53
CN25
3
1
3
1
5
3
1
3
1
3
1
3
1
CN26
CN21
CN22
CN23
ON OFF
ON OFF
X22
1
2
3
4
5
6
2
1
4
3
2
1
52C2
SV12
MF22
(*1)
C12
C11
3
1
3
1
5
3
1
CNFC2
CNFAN
F.C.
BOARD
1
6
3
1
5
5
3
1
CNOUT1
CNOUT2
3
1
N.F.BOARD
F20
F30
F10
7
5
1
3
CNIN
CNPOW
PE
MC2
BLACK
RED
WHITE
51C2
52C2
BLUE
BLACK
RED
WHITE
TB21
GREEN/YELLO
W
GREEN/YELLO
W
RED
WHITE
BLACK
RED
WHITE
BLACK
WHITE
BLACK
7
5
3
5
3
1
3
1
MF21
1
2
3
4
1
2
6
5
4
3
2
1
X11
OFF
ON
OFF
ON
CN23
CN22
CN21
CN26
1
3
1
3
1
3
1
3
5
1
3
1
3
CN25
CN53
1
5
1
6
L1 N L2
7
5
3
F03
F02
F04
3
1
2
1
CN81
CN27
CN24
CN3N
CN3S
CN40
CN2
CN3
TH1-1
TH2-1
1
2
1
2
N
PE
PE
CIRCUIT BREAKER
(FIELD SUPPLY)
PRH-P16MYA: 63A
PRH-P20MYA: 70A
C12
F.C.
BOARD
PE
L3
N.F.BOARD
C11
CNFAN
CNFC2
CNPOW
1
3
6
(*1)
5
ON
TB11
52C1
51C1
MC1
3
1
CNOUT2
RED
1
3
F10
F20
F30
BLUE
1
52F
51F
MF1
1
PE
CNOUT1
1
51C1
52C1
52C1
X04
CN52
CNFC1
CN20
3
1
F01
CNFG
CNVMNT
CNMNT
CN4
2
1
X01
X03
X02
X05
LEV1
TH3-1
21S41
SV11
63H11
63L1
CH1
CNS3
1
3
TRANSMISSION
CIRCUIT
1
3
CN28
CN34
DC POWER
SUPPLY
CN3D
CN51
3
1
63H21
C14
OFF
SW4
SW1
TR1
SW2
ON OFF
OUTDOOR MAIN BOARD
(*2)SW5
SW3
LED1
CNIN
1
3
5
C28
X2
X1
INDOOR
POWER BOARD
BLACK
(WITH INDOOR
POWER BOARD)
C18
C18
C28
X1
X2
51F
52F
CR
F22 F12
TH4-2 TH5-2 TH6-2
FB22
1 2 3 4
CN41
1 2
1 2
1 2
CN29 CN21 CN20
1
2
3
4
SW2
(*3)
1
2
3
4
5
SW1
SWE
X4
X5
X6
X6
X5
X4
1
3
5
7
FAN
3
1
5
CN03
1 2 3
CN32
INDOOR CONTROLLER
BOARD
1
2
CN2D
DC14V
1
1
2
2
CN22
CN2L
7 8 9
1 2 3 4 5 6
CN90
FB12
2
3
1
CN01
2
1
3
BK
CN02
ZNR
F1
DC14V
1 2
CN2S
DC14V
LED1 LED2 LED3
REMOTE CONTROLLER
BOARD
TB6
CN
LCD
LED1LED2LED3
PE
9
8
7
6
5
4
1 2 3
2
1
2
1
3
2
5
3
1
7
5
3
X4
X5
ON OFF
SWE
1
2
3
4
ON OFF
SW2
(*3)
1
2
3
4
5
ON OFF
ON OFF
ON OFF
ON OFF
SW1
1 2
1 2
1 2
4
3
2
F21 F11
X4
X5
X6
2
1
1
2
1
1
1
2
3
2 3
SUPPLY AIR
DUCT
RETURN AIR
DUCT
2
1
FB21
INDOOR CONTROLLER
BOARD
INDOOR
POWER BOARD
CN20
1
DC14V
REMOTE
CONTROLLER
CN2S
DC14V
FB11
TB5
TH4-1 TH5-1 TH6-1
CN02
CN01
ZNR
F1
X6
FAN
1
CN03
CN2D
DC14V
CN21
CN29
CN41
CN32
CN22
CN2L
CN90
PE
BK (WITH INDOOR
POWER BOARD)
BLACK
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