MEES19K187
PQH
Y
-P
-T
(S)
L
MU-
A
1,
Y(S
)L
M
U-
A
1
50
4. ELECTRICAL WIRING DIAGRAMS
WY-Series
PQHY-P72, 96, 120, 144, 168, 192, 216, 240YLMU-A1
4
2 1
1
6
4
1
5
↓
12
L3
red
CNPS
1
3
2
1
TP1
TP2
TB3
2
3
TB7
M1
M2
M1
M2
S
1
5
12
34
1
2
t°
LEVINV
M
1
2
3
4
6
1
2
1
32
3
4
6
3
6
5
3
1
L1
L2
3
1
34
CN4
black
1
13
31
t°
3
CN2
1
12
1
3
3
1
4
3
2
2
3
1
1
TH2
TH4
t°
4
t°
1
1
1
CN21
1
green
2
3
123
321
U
5
T
ransformer Box
CNTR3
3
4
CNTR2
T02
(T
ransformer)
2
2
3
4
T03
(T
ransformer)
1
1
21
3
2
1
2
3
1
2
3
CN6
1
t°
2
yellow
CNPOW
t°
1
654
X14
X08
X07
Unit address setting
CT12
CN5
red
D1
R4
Z5
3
5
1
6
CNTR1
12
L1
L2
L2
3
L3
45678
white
Ground
12
3
4
3
white
red
black
black
white
red
F4 AC600V 6A
F
F5 AC600V 6A
F
green
CN62
CN990
green
CNTYP4
F4
AC250V
6.3A
T
R5
CN201
Z25
1
TH5
2
SWU2
LED1
SW6
10
Control Board
TH3
CN40
63HS1
CN41
TH7
1
5
1
SW4
LED3
LEV7
3
3
SET
UP(SW6-10)
SC-V
CT22
SC-U
V
CN4
blue
red
M
t°
black
CN506
red
CNTYP2
black
6
yellow
CN3K
*3
Compressor ON/OFF output Error detection output
TB21
DC12V
CN51
SV7b
CN1A
U
CN2
blue
CN3N
1
3
SV7a
4
TB1
CN1B
TB7 Power selecting connector
1
2
5
L3
DCL
black
72C
white
red
6
ON
OFF
M-NET
power
supply circuit
1
2
M-NET
Board
Power failure detection circuit
Indoor/Heat source
transmission
cable
INV Board
red
TB23
L2
L1
ON
1's
digit
THHS
CN102
C31,C33,
C35,C37
4
1
W
10's
digit
OFF
LED2:Normal operation(Lit)
/ Error(Blink)
CNS2
yellow
CNDC
red
red
MS 3~
2
C100
*5
TH6
U
LED1:Power supply to
Indoor/Heat source
transmission line
ZNR400
black
Central control
transmission
cable
*6
SC-L1
ON
OFF
FT
-N
R30,R32,
++
R34
Motor
(Compressor)
1
CN04
red
CN43
1
SC-P2
P
CN61
green
CN202
red
C30,C32,
C34,C36
N
CN1
X13
LED1:Normal operation(Lit)
/ Error(Blink)
*4
SC-W
SC-L3
2
CNR
YB
P
63H1
4
SW5
10
CN3D
1
CPU power supply circuit
black
CNAC2
1
*3
ON
OFF
10
SWU1
white
CN212
red
SC-L2
2
CNTYP5
green
CN801
red
5
IPM
4
SC-P1
FT
-P
black
red
DB1
CT3
C1
CNTYP
black
black
TB22
SWP01
RSH1
R6
+
+-
C1
1
63LS
ZNR1
U
L
Noise Filter
Z24
CN509
yellow
3
3
6
CN213
green
CN6 yellow
SV4b
Function setting
LED1 Display setting/
Function setting
72C
Noise filter
Noise filter
6
7
red
Surge
absorber
1
2
5
1
CNL
VD
CNL
VE
yellow
1
F01 AC250V
3.15A
T
white
black
1
CNIT
red
L1
L2
L3
R31,R33,
R35
*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 FT
-P
and FT
-N on
INV Board has dropped to DC20V or less.
3
4
1
R1,R5
X05
X06
3
5
1
6
CN505
1
3
CNAC
1
2
5
1
2
3
4
4
4
CN2
21S4b
21S4a
Power Source
3~ 60Hz 460V
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
t°
CN992A
yellow
TH8
1
2
t°
1
2
THINV
CNTYP1
black
LEV6
M
1
2
3
4
6
1
2
3
4
5
6
LEV1
M
C
N
LVA
CNL
VB
red
blue
1
3
CN5V yellow
yellow
CN63PW
blue
CNOUT
yellow
CNAO
green
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
a
ter outlet temperature
THINV
Outlet temp.detect of 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
72C
Capacitor(inverter main circuit)
C30~C37
Solenoid
valve
Linear
expansion
valve
LEV1
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)
CT12,22,3
L
C
hoke 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
Heat exchanger capacity control
Heat exchanger capacity control
Magnetic relay(inverter main circuit)
X12
CN508
blue
3
6
SV4d
1
X02
CN502
black
1
3
M 1~
MF1
SV4a
X04
CN504
yellow
1
SV1a
3
Cooling/Heating switching
21S4b
Heat exchanger capacity control
LEVINV
Heat exchanger for inverter
CN507
black
5
6
TB9
*7
DC0-10V signal output
6:signal
5:GND
(OUT)
TB9
Power input and signal output
for variable water flow valve
64
53
1
2
*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
P144/168/192/216/240
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
SV9
For opening/closing the bypass
circuit
X09
3
5
1
6
SV9
SV7c
*9
*8
*10
*10
*10
*10
X10
5
*1
1
X01
CN501
blue
1
3
CH1
1
*1
1.Dif
ference of appliance.
Model name
P72/96/120/144/168/192
P216/240
Appliance
*1
1 do not exist
*1
1 exist
CH1
1
Crankcase heater(for heating the compressor)
*8
1
CN510
X15
2
*9
*9
*9
2
1
3
1
CNTR4
CNTR5
T04(T
ransformer)
0000005752.BOOK 50 ページ 2020年2月28日 金曜日 午前10時8分