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[ V Electrical Wiring Diagram ]
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HWE09080 GB
V Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the Heat source Unit
(1) PQHY-P72, 96, 120THMU-A
*7
black
red
C1
+
*6
RELAY Board
4
1
CNAC4
3157
CN83
1346
CNOUT2
yellow
25421
CNPW
blue
Explanation
Symbol
5
4
3
2
1
6
MF1 Fan motor(Radiator panel)
SV1a
t° THINV
1
2
CNTYP1
black
SV4a,b,d
TH8
HIC bypass,Controls refrigerant
flow in HIC circuit
Heat exchanger capacity control
For opening/closing the bypass
circuit under the O/S
Water outlet temperature
LEVINV Heat exchanger for inverter
SV7a,b Heat exchanger capacity control
For opening/closing the bypass
circuit
THINV
Outlet temp.detect of heat
exchanger for inverter
LEV2a,b
Pressure control,Refrigerant flow
rate control
TH3
TH2 Subcool bypass outlet temperature
Pipe temperature
TH6
Subcooled liquid refrigerant
temperature
<Symbol explanation>
63HS1
SV9
21S4a 4-way valve
Explanation
Symbol
63H1
63LS
Pressure
sensor
Pressure
switch
High pressure protection for the
heat source unit
High pressure
Low pressure
72C Magnetic relay(inverter main circuit)
Current sensor(AC)
Crankcase heater(for heating the compressor)CH11
CN506
6
3
CT12,22,3
Solenoid
valve
Linear
expansion
valve
t° TH8
CN992
yellow
yellow
1
2
M
LEVINV
CNLVE
6
5
4
3
2
1
LEV1
DCL DC reactor
TB1
TB3
TB7
Terminal
block
Central control transmission
cable
Indoor/Heat source transmission
cable
Power supply
TB8
TH4
TH5
TH7
THHS
Function setting connector
IGBT temperature
Water inlet temperature
ACC inlet pipe temperature
Discharge pipe temperature
Operation ON signal,
Pump Interlock
Thermistor
Z24,25
ZNR01
CNOUT1
yellow
U
5
X05
X06
SV7a
SV7b
M
MF1
~
1
6
5
1
CN510
yellow
CN509
blue
X12
5
6
SV4a
X07
3
6
CN507
red
red
white
1
6
3
X09
CN508
black
SV9
L3
L2
L1
1
*1.Single-dotted lines indicate wiring
not supplied with the unit.
*2.Dot-dash lines indicate the control box boundaries.
*3.Refer to the Data book for connecting input/output signal connectors.
*4.Daisy-chain terminals (TB3) on the heat source units
in the same refrigerant system together.
*5.Faston terminals have a locking function.
Make sure the terminals are securely locked in place after insertion.
Press the tab on the terminals to remove them.
*6.Refer to the Data book for wiring terminal block for
Pump Interlock and Operation ON signal.
*7.Control box houses high-voltage parts.
Before inspecting the inside of
the control box,turn off the power,
keep the unit off for at least 10 minutes,
and confirm that the voltage at both ends
of the main capacitor (C1) has dropped to
DC20V or less.
SV1a
72C
CN504
green
3
1
CH11
A2
A1
3
1
X03
CN503
blue
3
1
CN505
2
1
X02
X72
CN502
1
CN02
Motor
(Compressor)
TB21
F2
AC250V
6.3A T
31
21
CNT01
CNDC
pink
CPU power
supply circuit
1
F01
AC250V
3.15A T
CN03
black
1313
M-NET power
supply
circuit
12
blue
orange
red
yellow
M-NET Board
*4
7
TH2
TH4
t°
t°
3
2
1
Indoor/Outdoor
transmission
cable
Central control
transmission
cable
63HS1
5
red
CNAC
63LS
3
TP2
2
CN2
1
Control Board
M
LEV1
LEV2a
3
TH5
LEV2b
M
TP1
TH6
TH7
M
2
3
4
5
TH3
6
TB3
M1M2 M1M2 S
TB7
123
t°
4512
1234
t°
1
t°
2
LED1
Unit address
setting
t°
LED1:Power supply to
Indoor/Outdoor
transmission line
CN102
CNS2
yellow
SWU2
10's digit
SWU1
1's digit
10
1
10
1
10
1
10
1
SW4 SW3 SW2 SW1
ON
SV4b
1
5
X14
OFFON OFFON OFFON
X04
X08
SV4d
*3
43
2
TB8
1
Pump Interlock
Operation
ON signal
*6
LED3:Lit when powered
CN01
5
black
3
CNIT
red
1
1
3
6
5
4
3
1
2
blue
CN63PW
24
2
1
2
1
1
2
1
1
OFF
2323123
blue
CN3N
yellow
CN3K
F01
AC250V
3.15A T
4521
OFF
4112 431
2
1
2
3
4
5
6
21
CNLVC
red
CNLVA
2131
CN801
yellow
CNT02 CN4
2
1
2
2
3
3
CN41CN102CN3D
4
1
red
CNIT
yellow
CNS2
CN202
red
CN201
CN215
black
CN211
41
2
1
Z24
Z25
3
CNLVB
red
ON
CNTYP5
green
CNTYP4
green
CN990
CN40
LED2:CPU in operation
CN212
CN213
red
TB1
L3L2
whitered
Noise Filter
F1
AC250V
6.3A T
W
CX6
CY3
V
black
SC-V
7
black
INV Board
RSH2
3
ZNR1
C32
red
black
CN6
SC-U
CN2
SC-T
MS
3~
*5
CX5
U
CN4
red
white
U
72C
R30
TB23
TB22
1
CT22
DSA1
black
1
CX2
CY1
CX1
Z3
CX3
Z4
Z1
U
SC-P2
3
CY2
CX4
black
white
*5
red
red
CT12
black
SC-W
1
SC-S
red
CT3
SC-R
red
R1
DCL
2
5
C31
C1
RSH1
U
C30
IGBT
CNDC
pink
LED1:Normal operation(Lit)
/Error(Blink)
2
1
THHS
1
L
TB-P
44
3334
*5
1314
23
43
24
white
white
21S4a
+++
TB-N
SC-P1
1
P
63H1
Power supply
3~
60Hz
208/230V
CN04
red
U
Z2
U
ONOFF
1
10
SW5
12V
5
4
3
1
CN51
*3
Function setting
LED1
Display
setting
Compressor ON/OFF output
Error detection output
L1
1
CNAC2
black
black
1
2
G
Ground
G
Power
failure
detection
circuit
TB7 Power
selecting
connector
t°