MEES21K047
PQ
R
Y-P
-Z
(S
)L
M
U
-A
1
21
4. ELECTRICAL WIRING DIAGRAMS
WR2-Series-575V
4. ELECTRICAL WIRING DIAGRAMS
PQRY-P72, 96, 120, 144, 168, 192ZLMU-A1
↓
L1
L2
Power Source
3~
60Hz
575V
T
ransformer box
T02
(T
ransformer)
X12
CN508 blue
Unit address setting
CN504 yellow
CT12
CN5 red
D1
R4
Z5
CNTR1
12
L1
L2
L2
3
L3
45
6
78
black
AC600V 6A
F
red CNPS
t°
1
CN51
DC12V
CN213
CNTYP4
F4 AC250V 6.3A
T
R5
*3
3
2
Compressor ON/OFF output
Error detection output
CN201
Z25
4
1
TH6
SWU2
LED1
R26~R31
SW6
10
Control Board
TH3
CN40
63HS1
CN41
TH7
t°
3
2
SW4
LED3
LEV1
LEV6
SC-V
CT22
SC-U
1
CN4 blue
1
M
t°
white
3
yellow
CN3K
3
M
TB1
1
3
M
blue CN3N
U
TB1
CN62
TP1
black
white
ON
OFF
M-NET
power
supply circuit
M-NET
Board
Indoor/Heat source
transmission cable
INV
Board
red
TB31
1
ON
1
1's digit
THHS
CNIT red
S
CN990
TB3
10's digit
OFF
LED2:Normal operation(Lit)
5
TB7
CNDC red
M1
red
t°
U
4
LED1:Power supply to
Indoor/Heat source
transmission line
ZNR400
M2
32
M1
black
Central control transmission cable
*6
SC-L3
ON
OFF
FT
-N
5
3
CN04 red
CN2
X08
SC-P2
P
CN202
red
TH5
N
M2
TP2
LED1:Normaloperation(Lit)
/Error(Blink)
2
X04
*4
SC-W
SC-L1
CN506
P
63H1
CN801
red
SW5
10
CN61
1
CNAC
F01 AC250V 3.15A
T
1
t°
ON
OFF
10
SWU1
CN212
red
SC-L2
Z24
4
1
2
5
6
2
1
3
CNTYP5 green
1
2
CN4
1
CN6
IPM
SC-P10
FT
-P
CT3
C10~C12
TB21
RSH1
CN102
R6
C14
1
63LS
ZNR1
U
L
Noise
Filter
3
1
CN6
yellow
C
N
LVA
CNL
VB
red
CNL
VD
blue
1
2
3
4
5
6
3
Ground
6
4 3 2 1
6
4
G
3 2
L1
L2
L3
1
L3
MF1
Fan motor(Radiator panel)
SV1a
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
W
ater outlet temperature
THINV
Outlet temp.detectof heat
exchanger for inverter
TH3
TH2
Subcool bypass outlet temperature
Pipe temperature
TH6
Subcooled liquid refrigerant temperature
<Symbol explanation>
63HS1
21S4a
4-way valve
Explanation
Symbol
63H1
63LS
Pressure sensor
Pressure switch
High pressure protection for the heat source unit
High pressure
Low pressure
52C
Capacitor(inverter main circuit)
C1,2
Solenoid valve
Linear expansion valve
LEV1
DCL
DC reactor
TB1
TB3
TB7
T
erminal
block
Central control transmission cable
Indoor/Heat source transmission cable
Power supply
TB8
TH4
TH5
TH7
THHS
Function setting connector
IPM temperature
W
ater inlet temperature
ACC inlet pipe temperature
Discharge pipe temperature
Operation ON signal, Pump Interlock
Thermistor
Z24,25
Power failure detection circuit
X13
X07
M 1~
X02
CN502 black
yellow
CNPOW
MF1
SV7b
CN509 yellow
THINV
t°
CNTYP1 black
SV7a
t°
TH8
M
CN992A
CNL
VE
6
4 3 2 1
CNTYP black
3
1
CNTYP2 black
LEV7
LEVINV
yellow
green
green
CN21
1
green
12
3
4
CNS2
21
yellow
CN3D
black CNAC2
X14
SV4b
SV4a
SV4d
red
X06
CN505
X05
21S4a
←SET
UP(SW6-10)
SWP1
41
green
3
CN4
1
3
4
black
4
2 1
1
6
4
1
5
21
21
4
51
21
CN63PW blue
CNOUT yellow
CNAO green
2
31
1
CN2
4
5
6
7
R20~R25
+
+
FT
-C
SC-N
R1
R5
1
5
6
white
black
red
*5
DB1
CNTR
4
17
5
6
1
G
Noise Filter
Surge
Absorber
F02 AC600V 6A
F
V
U
W
MS 3~
Motor
(Compressor)
red
white
black
green
52C
F01
Function setting
LED1 Display
setting/
/Error(Blink)
C2
C1
4
T03
(T
ransformer)
3
1
4
1
Current sensor(AC)
CT12,22,3
L
Choke coil(for high frequency noise reduction)
LEV6
LEV7
Resistor
For inrush current prevention
For current detection
R1,5
RSH1
SV7a,b,c
Heat exchanger capacity control
TB7 Power
selecting
connector
Function setting
LED4:CPU in operation
Heat exchanger capacity control
Heat exchanger capacity control
Board
4
yellow
2
red
black
Magnetic contactor(inverter main circuit)
*5
5
*10
*10
*10
t°
TH2
TH4
t°
*10
SV1a
21S4b
*8
X10
CN507
X09
SV9
SV7c
black
*9
*8
2
31
4
5
6
*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.Control box houses high-voltage parts.
Before inspecting the inside of the control box,turn of
f the power
,
keep the unit of
f for at least 10 minutes, and confirm that the voltage
between FT
-P
and FT
-N on INV Board has dropped to DC20V or less.
*7.Refer to the Data book for wiring terminal block for Pump Interlock,
Operation ON signal and DC0-10V signal output.
*8.Dif
ference of appliance.
Model name
P72/96/120
P144/168/192
Appliance
*8 do not exist
*8 exist
*9.Dif
ference of appliance.
Model name
PQHY
PQR
Y
Appliance
*9 do not exist
*9 exist
*10.Dif
ference of appliance.
Model name
PQHY
PQR
Y
Appliance
*10 exist
*10 do not exist
LEVINV
Heat exchanger for inverter
SV9
For opening/closing the bypass circuit
TB9
Power input and signal output
for variable water flow valve
21S4b
Cooling/Heating switching
Heat exchanger capacity control
CN503 green
X03
52C
A1
A2
1
2
1
2
1
2
1
2
1
2
1
2
1
3
1
3 2
1
3 2
4 3
1
2
3
1
3
1
1
3
1
3
1
3
1
3
5
6
1
3
5
6
1
3
5
6
1
3
6
1
3
5
6
1
31
2
12
1
2
31
2
31
2
3
5
12
34
6
1234
1234
1234
5
T
ransformer
T04
(T
ransformer)
box 2
X15
CN510
1
2
CNTR9
21
*9
*9
*9
1
1
CNTR6
3
1
1
2
1
3
CNTR3
1
red
*3
DCL
CPU power supply circuit
red
I/O Board
CNAC4
black
CNOUT2 yellow
CNPW
blue
TB8
Operation
ON signal
Pump Interlock
*7
red
CN2
CNA0 green
*7
CNTR2
CNTR5
CNTR4
Noise Filter
TB9
*7
DC0-10V signal output 6:signal 5:GND
(OUT)
CNTR8
CNTR7
+
+-
0000006382.BOOK 21 ページ ２０２１年７月１９日 月曜日 午後４時１４分
