MEES19K187
PQRY-
P
-T(
S
)LMU
-A1, Y(
S)LMU
-A1
211
4. ELECTRICAL WIRING DIAGRAMS
WR2-Series
PQRY-P216, 240TLMU-A1
↓
12
red
CNPS
1
3
2
1
TP1
T
P2
TB3
2
3
TB7
M1
M2
M1
M2
S
5
12
34
LEV6
M
1
2
3
4
6
1
32
3
1
CN4
black
31
t°
12
1
3
3
1
4
3
2
3
1
1
TH4
t°
4
1
1
CN21
1
green
2
3
123
321
3
2
2
3
1
2
3
1
2
yellow
CNPOW
t°
654
X10
X08
X07
Unit address setting
3
5
1
6
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(S
W
6
-10)
CN506
red
yellow
CN3K
*3
Compressor ON/OFF output Error detection output
DC12V
CN51
SV7b
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
10's
digit
OFF
LED2:Normal operation(Lit)
/ Error(Blink)
CNS2
yellow
CNDC
red
2
LED1:Power supply to
Indoor/Heat source
transmission line
Central control
transmission
cable
ON
OFF
1
CN04
red
CN61
green
CN202
red
*4
2
P
63H1
4
SW5
10
CN3D
1
CPU power supply circuit
black
CNAC2
1
*3
ON
OFF
10
SWU1
CN212
red
CNTYP5
green
CN801
red
SWP01
63LS
Z24
CN507
black
3
6
SV9
Function setting
LED1 Display
setting/
Function setting
1
2
1
CNL
VB
red
1
F01 AC250V 3.15A
T
CNIT
red
X05
X06
3
5
1
6
CN505
1
3
CN1
10
black
2
1
CNR
Y
A
red
1
2
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
VD
blue
LEV1NV
M
1
2
3
4
6
CNL
VE
yellow
t°
1
2
TH1NV
CNTYP1
black
t°
CN992A
yellow
TH8
1
2
X03
CN503 green
1
3
M 1~
MF2
X04
CN504 yellow
1
SV1a
3
X14
X13
CN509 yellow
3
6
SV4b
5
1
SV4a
5
X12
CN508
blue
3
6
SV4d
1
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
Ground
L3
L2
L1
Power Source
3~ 60Hz 208/230V
Power failure detection circuit
Surge absorber
INV Board
V
U
MS 3~
Motor
(Compressor)
red
Noise filter
IPM power
supply circuit
Noise Filter
Noise filter
LED1:Normal
LED4:CPU in operation
operation(Lit)
/ Error(Blink)
CAP
Board
6
4
12
CNFG2
6
CN1
10
531
CN012
1
3
F001
AC250V
6.3A
T
F002
AC250V
6.3A
T
black
white
red
TB21
TB22
TB23
CN001
531
L
TB1
L3
L2
L1
black
white
red
DCL
THL
t°
red
red
21
CNTH
red
321
123
1
2
3
4
SC-L
SC-B
CNCT4A
blue
CNR
Y
blue
CNCT4B
blue
RY
1
CT
-4
R
S
T
black
white
red
IPM
t°
THHS
5 4 3 2 1
2 1
CN2
red
CN4
green
*5
*5
RY2
RY3
RY4
RY
1
C1
F1
AC250V
3.15A
T
FT
-R21
FT
-R22
black
red
R1
RY
2
R
Y
3
RY
4
2
1
CNR
Y2
blue
SC-C
SC-N1
CT
-3
SC-U
SC-V
SC-W
CT
-1
SC-N2
CT
-2
red
w
hite
black
1
6
ON
OFF
SW1
SC-P
SC-N
PN
+
F001
AC250V
3.15A
T
C101~
C106
1
2
4
5
CNVDC
white
b
lack
W
*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
*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 between SC-P
and SC-N on CAP
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
3
1
CN5V
yellow
t°
CN213
green
TH6
1
2
*9
t°
2
TH3
*9
*9
t°
2
TH2
signal output.
X02
CN502
black
1
3
M 1~
MF1
1
3
CN501
blue
X01
<Symbol explanation>
MF1,MF2
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
Capacitor
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
Current sensor(AC)
CT
-1,CT
-2
L
C
hoke coil(for high frequency noise
reduction)
LEV6
LEV7
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
21S4b
Cooling/Heating switching
Heat exchanger capacity control
Current sensor(DC)
CT
-3,CT
-4
TB9
P
ower input and signal output
for variable water flow valve
LEV1
HIC bypass,Controls refrigerant flow in HIC circuit
C101~C106
filter circuit
inverter main circuit
Magnetic
filter circuit
inverter main circuit (72C)
RY
1
RY
2,
RY
3,
RY
4
relay
TH2
TH3
TH6
Pipe temperature
Subcool bypass outlet temperature
Subcooled liguid refrigerant
THL
temperature
DCL
temperature
Resistor(For inrush current prevention)
CH1
1
Crankcase heater(for heating the compressor)
CH1
1
CN510
1
2
X15
T04(T
ransformer)
*8
*8
*8
2
1
3
1
CNTR1
CNTR2
*6
*6
0000005754.BOOK 211 ページ 2020年2月28日 金曜日 午後12時2分