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[
V
Electrical Wiring Diagram ]
V
Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the Heat Source Unit
1. Electrical wiring diagram of the heat source unit
(1) PQHY/PQRY-P72 and P96 models
Bypass outlet temp.detect
at sub-coolcoil
TH8
Outlet temp.detect of
heat exchanger for inverter
THINV
Freeze prevention sensor
TH9
DC Current Sensor
DC reactor
(Power factor improvement)
Magnetic contactor
(Inverter main circuit)
Fan motor (Radiator panel)
Crank case heater (Compressor)
4-way valve
Solenoid valve
(Discharge-suction bypass)
Solenoid valve
(Heat exchanger capacity control)
Thermistor
Discharge pipe temp. detect
Pipe temp.detect
Water temp.detect
Liquid outlet temp.detect
at sub-coolcoil
High pressure switch
High pressure sensor
Low pressure sensor
Choke coil (T
ransmission)
Function device
Ground terminal
Z20
L1,L2
63LS
63HS
63H
Radiator panel temp. detect
THHS1
TH7
TH6
TH5
TH1
1
SV4a,b,c,d
Solenoid valve
(Heat exchanger capacity control)
SV7a,b,c
Electronic expansion valve
(Sub-cool coil bypass)
LEV1
Electronic expansion valve
(Heat exchanger for inverter)
LEV2
SV1
21S4a
CH1
1
MF1
52C
DCL
DCCT
ACCT
AC Current Sensor
Symbol
Name
< Symbol explanation >
<
Dif
ference of appliance
>
NOTE:The broken lines indicate field wiring.
Compressor
ON/OFF
SHOR
T
OPEN
OPEN
SHOR
T
CN3D 1-2P
CN3D 1-3P
100%
0%
75%
50%
OPEN
SHOR
T
SHOR
T
OPEN
OFF
ON
*1:
Function according to switch operation.
(SW4-7,CN3D 1-2P
,and CN3D 1-3P
,
SW3-3:CN51 3-5P)
SW4-7:ON (STEP
DEMAND)
NIGHT
MODE
CN3D
1-2P
OFF
ON
SW4-7:OFF (Compressor ON/OFF and
NIGHT
MODE)
CN3D
1-3P
*2
PQRY-P72/P96TGMU-A
PQHY-P72/P96TGMU-A
Model name
ON
OFF
SW3-3
water freeze signal
trouble signal
CN51 3-5P
:exist X:not exist
)
*1
~ ~ ~
-
+
+
*1
*1
*2
*2
*2
Shield
DS (Diode stack)
M2
M1
M2
M1
Control circuit board
Gate amp board
Inverter controller box
G
L3
L2
L1
black
white
red
G
black
red
red
white
black
Power source
3~
208/230V 60Hz
Indoor/outdoor (heat source) transmission line
Central control
transmission line
G
G
G
G
Function setting
ON
OFF
Power circuit board
LED1 operation
LED2 error
LED3 charge
ON
OFF
1 6
1 4
SW1
SW2
red
black
TB1 (Terminal Block)
TB3
(Terminal Block)
TB7
(Terminal Block)
green
detection circuit
detection circuit
detection circuit
Compressor ON/OFF Water freeze signal or trouble signal
or STEP DEMAND
Compressor ON/OFF
NIGHT MODE
G
Relay-Board
detection circuit
Motor
(Compressor)
LD2
Maintenance setting
Function setting
SW1
SW2
SW3
SW4
LD1
ON
ON
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
SW5
1
1
10
1
10
1
10
1
10
10
SWU2
Address setting
SWU1
SWU3
0
1
2
Refer to the service handbook about the switch operations.
14
2
5 6
9 10
13
13
9 10
5 6
2
7
5
3 2
7
5
3
2
6 5 4 3 2
SV 7b
SV 7a
SV 7c
X01
65
4
3
2
1
TH8
Sub box
CNLVB red
LEV1
X11
TH5
TH7
TH9
CN06 yellow
21
5
4
3
6
2
1
12V
CN51
1 2 3 4 5
Unit ON/OFF
X21
X22
X23
X25
Pump interlock
63PW
1
4
TB8
(Terminal Block)
3
2
CNAC4
4
3
2
1
CNOUT2 yellow
CN83
7
1
CN81
9
1
CNPW blue
2
4
3
1
CN63PW blue
1 2 3 4
SV 4a
SV 4b
CN09 green
21
THINV
CNOUT1 yellow
1 2 3 4 5 6
X06
X07
X05
X03
X08
X09
X52
CN38 green
CN35 red
CN36
CN34 red
CN33
CN32
CN52C yellow
1 2 3
1 2 3
1 2 3
2 3
1
1 2 3 4 5 6
1
1 2 3 4 5 6
9
52C
SV1
SV 4d
63H
SV 4c
21S 4a
CH11
L3
L2
2
13
DSA
ZNR1 4
X01
F01 250V 3.15A T
LEV2
MF1
L2
L3
L1
FN1
R1
52C
FN2
FN3
FN4
FN6
NF (Noise-Filter)
C1
L3 L1
1
2
1
2
1
2
CNL2
CNL1
L2
L1
R2
red CN30V
black
red
DCCT
S
black
white
red
4
3
2
1
2
1
2
3
2
1
1
7
1
8
2
14
1
9
3
1
4
1
1
1
4
1
4
3
2
1
8
1
23
4
3
2
1
4
3
2
1
5
3
2
1
2
3
2
1
32
1
32
1
3
2
1
32
1
1
22
31
2
4
6
F01 250VAC 2A T
CNAC2
CNCT
7
18
5
21
1
3
1
1
CNDC1 yellow
CN15V1
CNDR1
CNDC2
ACCT-W
ACCT-U
ACCT
CNDR2
CN15V2
THHS1
green CNTH
CNFG blue
CNDC2 yellow
CNCT2 blue
CNVCC1
CNFAN red
CNRS1
CN41
CN21 blue
CNS1 blue
CN20
F02 250VAC 6.3A T
CN40
F01 250VAC 6.3A T
CNS2 blue
CNRS3B
CNVCC1
CN3D
CNTYP5
CNTYP4
R23
R22
CNH
CNL black
CN01
CN02
63LS
TH11
TH6
CNTYP1 red
black
3
white
7
4
2
63HS
1
Z20
red
3
9
1
1
Shield
L1
black
white
DCL
N
IPM
P
C4
MC
V
U V W
C5
ZNR4
U
W
1
red
2 3
1
5
4
3
21
Ground
black CNAC3
65
4
3
2
1
CNLVC yellow
Содержание City Multi CMB-P1016NU-G
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Страница 86: ... 77 III Heat Source Unit BC Controller Components 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...
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Страница 112: ... 103 VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 105 2 Principal Parts and Functions 109 ...
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Страница 117: ... 108 VI Refrigerant Circuit 3 CMB P104 and P108NU GB sub TH25 TH22 LEV3a CP Solenoid valves Block Check valves Block ...
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Страница 312: ... 303 X LED Monitor Display on the Heat Source Unit Board 1 How to Read the LED on the Service Monitor 305 ...
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