109
4. ELECTRICAL WIRING DIAGRAMS
HEAT SOURCE
WR2
MEE15K036
4. ELECTRICAL WIRING DIAGRAMS
PQRY-P200, 250, 300, 350, 400, 450, 500, 550, 600YLM-A
↑
↓
12
red CNPS
1
3
2
1
TP1
TP2
TB3
2
3
TB7
M1
M2
M1
M2
S
5
12
34
1
2
t°
LEVINV
M
1
2
3
4
6
1
2
1
32
3
4
6
3
1
CN4 black
31
t°
3
CN2
1
12
1
3
3
1
4
3
2
2
3
1
1
TH2
TH4
t°
4
t°
1
1
CN21
1
green
2
3
123
321
5
21
3
2
2
3
1
2
3
CN6
1
t°
2
yellow
CNPOW
t°
1
654
X14
X08
X07
Unit address
setting
CT12
+
3
5
1
6
12
3
4
3
green
CN62
CN990 green
CNTYP4
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
M
t°
CN506 red
CNTYP2 black
6
yellow
CN3K
*3
Compressor ON/OFF output
Error detection output
DC12V
CN51
SV7b
U
blue
CN3N
1
3
SV7a
4
TB7 Power selecting connector
1
2
5
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
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
CT3
C1
CNTYP black
black
SWP01
RSH1
63LS
ZNR1
U
Z24
CN509 yellow
3
3
6
CN213 green
SV4b
Function
setting
LED1
Display
setting/
Function
setting
72C
6
7
red
1
2
5
1
CNL
VD
CNL
VE
yellow
1
F01 AC250V 3.15A
T
white
black
1
CNIT red
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.
*7.Refer to the Data book for wiring terminal block for
Pump Interlock,Operation ON signal,DC0-10V signal output and Power input(24V).
*8.Dif
ference of appliance.
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
I/O Board
CNAC4 black
21
CNOUT2
21
yellow
4
51
CNPW
21
blue
TB8
Operation
ON signal
Pump Interlock
*7
2
31
CNAO 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
CNL
V
A
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
ater 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
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
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
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
TB9
*7
*7
DC0-10V
signal output
6:signal
5:GND
(IN)
(OUT)
Power input
AC24V or DC24V
(non-polar)
TB9
Power input and signal output
for variable water flow valve
64
53
1
2
Model name
P200/250/300
P350/400/450/500/550/600
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
*8
CN3 green
1
3
L3
N
3
6
5
3
1
L1
L2
34
1
1
3
1
U
Power Source
3N~ 50/60Hz 380/400/415V
Noise filter
1
Surge
absorber
CN5 red
D1
R4
-
Z5
white
F4 AC250V 6.3A
T
R5
CN4 blue
red
black
TB21
CN1A
CN2
+
TB1
CN1B
L3
N
TB23
TB24
L2
L1
+
DB1
TB22
R6
C1
1
L
Noise Filter
Noise filter
L1
L2
L3
N
*1
1.Dif
ference of appliance.
Model name
P200/250/300/350/400/450/500
P550/600
Appliance
*1
1 do not exist
*1
1 exist
CH1
1
Crankcase heater(for heating the compressor)
*1
1
X01
CN501 blue
1
3
CH1
1
4
2 1
1
6
4
1
5
0000003811.BOOK 109 ページ ２０１５年１１月９日 月曜日 午前１１時２０分
