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[ V Electrical Wiring Diagram ]
- 108 -
HWE09080 GB
(2) PQRY-P72, 96, 120THMU-A
()
red
black
*7
C1
+
*6
<Symbol explanation>
Explanation
Symbol
MF1 Fan motor(Radiator panel)
SV1a
SV4a,b,d
TH8
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
63HS1
SV9
21S4a 4-way valve
CN215
black
2
1
THINVt°
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)
CNOUT1
yellow
CH11
CT12,22,3
Solenoid
valve
Linear
expansion
valve
DCL DC reactor
TB1
TB3
3
4
5
6
t° TH8
CN992
yellow
yellow
2
1
LEVINV
M
6
5
CNLVE
4
3
2
1
TB7
X05
3
6
CN506
6
L3
L2
L1
Terminal
block
*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
Central control transmission
cable
X03
Indoor/Heat source transmission
cable
Power supply
TB8
TH4
TH5
TH7
THHS
Function setting connector
CN503
blue
3
1
X72
CN505
2
1
X02
CN502
CN02
Motor
(Compressor)
TB21
F2
AC250V
6.3A T
IGBT temperature
Water inlet temperature
ACC inlet pipe temperature
Discharge pipe temperature
Operation ON signal,
Pump Interlock
Thermistor
Z24,25
5
31
21
CNT01
CNDC
pink
CN83
753
CPU power
supply circuit
1
F01
AC250V
3.15A T
CN03
black
13
2
13
M-NET power
supply
circuit
12
M-NET Board
*4
7
1
TH4t°
3
2
1
Indoor/Outdoor
transmission
cable
Central control
transmission
cable
63HS1
5
CNAC
red
63LS
3
TP2
2
CN2
1
Control Board
Pump Interlock
Operation
ON signal
*6
3
TH5
TP1
TH7
TB3
M1M2
M1M2
S
TB7
123
t°
4512
1234
t°
2
RELAY Board
LED1
Unit address setting
LED1:Power supply to
Indoor/Outdoor
transmission line
5
CN102
CNS2
yellow
SWU2
10's digit
SWU1
1's digit
10
1
10
1
10
1
10
1
SW4 SW3 SW2 SW1
ON OFFON OFFONOFFON
X04
6
*3
CNOUT2
yellow
21
4
32
CNPW
blue
TB8
1
LED3:Lit when powered
CN01
1
24
5
black
3
CNIT
red
1
1
SV7a
4
3
1
2
1
1
CNAC4
blue
CN63PW
24
2
1
blue
orange
1
1
red
yellow
2
1
OFF
2323123
blue
CN3N
yellow
CN3K
F01
AC250V
3.15A T
4521
OFF
4112 431
21
X08
2131
CN801
yellow
CNT02
1
CN4
X09
CN508
black
1
3
6
SV7b
1
2
23
CN41CN102CN3D
4
1
red
CNIT
yellow
CNS2
CN202
red
CN201
CN211
41
2
1
Z24
Z25
3
X06
SV9
ON
CNTYP5
green
CNTYP4
green
CN990
CN40
LED2:CPU in operation
TB7 Power
selecting
connector
CN213
red
TB1
L3
L2
whitered
Noise Filter
F1
AC250V
6.3A T
W
CX6
CY3
V
black
SC-V
7
t°
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
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
5
P
63H1
Power supply
3~
60Hz
208/230V
CN04
red
43
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
G
Ground
G
CN510
yellow
6
5
X14
~
M
X12
1
5
MF1
SV4b
X07
CN507
red
red
white
1
5
3
6
SV4d
SV4a
ZNR01
CNAC2
black
black
1
2
U
CN509
blue
Power
failure
detection
circuit
1