MEES19K187
PQRY-
P
-T(
S
)LMU
-A1, Y(
S)LMU
-A1
210
4. ELECTRICAL WIRING DIAGRAMS
WR2-Series
PQRY-P144, 168, 192TLMU-A1
*8.Dif
ference of appliance.
Model name
PQHY
PQR
Y
Appliance
*8 do not exist
*8 exist
*9.Dif
ference of appliance.
Model name
PQHY
PQR
Y
Appliance
*9 exist
*9 do not exist
Ground
L3
L2
L1
Power Source
3~ 60Hz 208/230V
12
red
CNPS
1
3
2
1
TP1
TP2
TB3
2
3
TB7
M1
M2
M1
M2
S
5
12
34
1
2
LEV6
M
1
2
3
4
6
1
32
3
1
CN4
black
31
t°
CN2
1
12
1
3
3
1
4
3
2
3
1
1
TH4
t°
4
1
1
CN21
1
green
2
3
123
321
6
SW1
1
6
OFF
ON
3
2
2
3
Power failure detection circuit
red
1
Surge absorber
2
3
TB1
L3
L2
L1
1
INV Board
2
L
yellow
CNPOW
t°
654
5
CNVDC
4
CNDC2
1
ACCT2
F02
AC250V
3.15A
T
C1
+
IPM
4
X10
X08
X07
Unit address setting
LED3:Charge
3
5
1
6
F001
AC250V
6.3A
T
F002
AC250V
6.3A
T
CN001
531
TB22
TB23
TB21
Diode stack
12
3
4
3
green
CN62
CN990
green
CNTYP4
CN201
Z25
TH5
SWU2
LED1
SW6
10
Control Board
CN40
63HS1
CN41
TH7
1
5
1
SW4
LED3
3
SET
UP(SW6-10)
V
CN506
red
yellow
CN3K
*3
Compressor ON/OFF output Error detection output
DC12V
CN51
SV7b
W
blue
CN3N
1
3
SV7a
4
TB7 Power selecting connector
5
6
ON
OFF
M-NET
power
supply circuit
1
2
M-NET
Board
Power failure detection circuit
Indoor/Heat source
transmission
cable
ON
1's
digit
CN102
4
1
U
10's
digit
OFF
LED2:Normal operation(Lit)
/ Error(Blink)
CNS2
yellow
CNDC
red
MS 3~
2
LED1:Power supply to
Indoor/Heat source
transmission line
Central control
transmission
cable
ON
OFF
Motor
(Compressor)
1
CN04
red
CN43
yellow
CN61
green
CN202
red
LED1:Normal operation(Lit)
/ Error(Blink)
*4
2
P
63H1
4
SW5
10
CN3D
1
CPU power supply circuit
black
CNAC2
1
*3
ON
OFF
10
SWU1
N
CN212
red
WU
P
CNDC1
1
4
V
1
25
CNIPM
CNTYP5
green
FT
-N
CN801
red
SWP01
CN012
1
3
63LS
U
ZNR005
Z24
CN507
black
3
F003
AC250V
6.3A
T
-
+
~~
~
TB42
6
X001
black
*5
SV9
Function setting
LED1 Display setting/ Function setting
red
LED4:CPU in operation
5
7
SC-P1
DCL
black
CN72C
red
3
1
DCCT1
1
2
1
4
1
CNL
V
B
red
1
CNR1
red
black
F01 AC250V 3.15A
T
TB31
R1
white
red
CNIT
red
X001
1
2
*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 removed 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
at both ends of the main capacitor (C1) has
dropped to DC20V or less.
CNCT
red
white
ACCT1
5
6
CN1
10
Noise filter
31
6
4
12
IPM power supply circuit
CNFG2
Noise Filter
black
4
3
2
1
CNCT2
blue
4
3
2
1
X05
X06
3
5
1
6
CN505
1
3
1
2
CNFG
blue
1
2
red
white
*5
black
red
THHS
t°
Z26
CNTYP
2
CNTH
green
21
CN1
10
black
2
1
CNR
Y
A
red
1
2
1
CNAC
1
2
5
1
3
4
4
4
CN2
21S4b
21S4a
I/O Board
CNAC4
black
21
CNOUT2
21
yellow
4
51
CNPW
21
blue
TB8
Operation
ON signal
Pump Interlock
*7
2
31
CNA0 green
*7
4
4
2 1
1
6
4
1
5
CN63PW
blue
CNOUT
yellow
CNAO
green
LEV7
M
1
2
3
4
6
CNL
V
D
blue
LEV1NV
M
1
2
3
4
6
CNL
V
E
yellow
t°
1
2
TH1NV
CNTYP1
black
t°
CN992A
yellow
TH8
1
2
X02
CN502
black
1
3
M 1~
MF1
X04
CN504
yellow
1
SV1a
3
X14
X13
CN509
yellow
3
6
SV4b
5
1
SV4a
3
1
CN5V
yellow
*7.Refer to the Databook for wiring terminal block for
Pump Interlock,Operation ON signal and DC0-10V signal
<Symbol explanation>
5
X12
CN508
blue
3
6
SV4d
1
*6
X09
SV7c
5
TB9
*7
DC0-10V signal output 6:signal 5:GND
(OUT)
64
53
1
2
*8
LEV1
M
1
2
3
4
6
CNL
V
A
5
*9
t°
CN213
green
TH6
1
2
t°
2
TH3
TH2
t°
2
*9
*9
*9
output.
MF1
Fan motor(Radiator panel)
SV1a
SV4a,b,d
TH8
Heat exchanger capacity control
For opening/closing the bypass
circuit under the O/S
W
a
ter outlet temperature
THINV
O
utlet temp.detect of heat
exchanger for inverter
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
X001
Capacitor(inverter main circuit)
C1
Solenoid valve
Linear expansion
valve
DCL
DC reactor
TB1
TB3
TB7
T
e
rminal
block
Central control transmission
cable
Indoor/Heat source transmission
cable
Power supply
TB8
TH4
TH5
TH7
THHS
Function setting connector
IPM temperature
W
a
ter inlet temperature
ACC inlet pipe temperature
Discharge pipe temperature
Operation ON signal,
Pump Interlock
Thermistor
Z24,25,26
Current sensor(AC)
ACCT1,2
L
C
hoke coil(for high frequency noise
reduction)
LEV6
LEV7
Resistor
For inrush current prevention
R1
SV7a,b,c
SV9
For opening/closing the bypass
circuit
Heat exchanger capacity control
Heat exchanger capacity control
Heat exchanger capacity control
LEVINV
Heat exchanger for inverter
Magnetic relay(inverter main circuit)
21S4b
Cooling/Heating switching
Heat exchanger capacity control
Current sensor(DC)
DCCT1
TB9
Power input and signal output
for variable water flow valve
LEV1
HIC bypass,Controls refrigerant
flow in HIC circuit
TH2
TH3
Pipe temperature
Subcool bypass outlet temperature
TH6
temperature
Subcooled liguid refrigerant
CN510
1
2
X15
T04(T
ransformer)
*8
*8
*8
2
1
3
1
CNTR1
CNTR2
↓
0000005754.BOOK 210 ページ 2020年2月28日 金曜日 午後12時2分