WR2-42
PQRY-P-T(S)LMU, Y(S)LMU (April 2017 Ver2)
© 2017 Mitsubishi Electric US, Inc.
4. ELECTRICAL WIRING DIAGRAMS
12
L3
re
d
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 blac
k
1
13
31
t
3
˚
CN2
1
12
1
3
3
1
43
2
2
3
1
1
TH
2
TH
4
t
4
˚
t
1
1
1
CN21
1
green
2
3
12
3
32
1
U
5
Tr
ansformer Bo
x
CNTR3
3
4
CNTR2
T0
2
(T
ransformer)
2
2
3
4
T0
3
(T
ransformer)
1
1
˚
21
3
2
1
2
3
1
2
3
CN
6
1
˚t
2
yellow CNPO
W
t˚
1
654
X14
X08
X07
Unit address setting
CT12
CN
5
re
d
D1
R4
-
Z5
+
3
5
1
6
CNTR1
12
L1
L2
L2
3
L3
45678
white
Ground
12
34
3
white
re
d
black
blac
k
whit
e
re
d
F4 AC600V 6A
F
F5 AC600V 6A
F
green CN62
CN990 green
CNTYP4
F4 AC250V 6.3A
T
R5
CN201
Z2
5
1
TH
5
2
SWU
2
LED1
SW
6
10
Control Boar
d
TH
3
CN40
63HS1
CN41
TH
7
1
5
1
SW
4
LED3
LEV7
3
3
SET
UP(SW6-10)
SC-
V
CT22
SC-
U
V
CN
4
blue
re
d
M
t
black
CN506 re
d
CNTYP2 blac
k
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 Powe
r
selecting connecto
r
1
2
5
L3
DCL
blac
k
72C
whit
e
red
6
ON
OF
F
M-NE
T
power
supply circui
t
1
2
M-NET
Boar
d
Power failur
e
detection circuit
Indoor/Heat source transmission cabl
e
INV Boar
d
re
d
TB23
L2
L1
+
ON
1'
s
digi
t
THHS
CN102
C31,C33, C35,C37
4
1
W
10'
s
digi
t
OF
F
LED2:Normal operation(Lit)
/ Error(Blink
)
CNS2 yello
w
CNDC re
d
red
MS 3~
2
C100
*5
TH
6
U
LED1:Power supply to
Indoor/Heat source transmission line
ZNR400
+
black
Central control transmission cabl
e
*6
SC-L1
ON
OF
F
FT
-N
R30,R32, R3
4
Motor
(Compressor)
1
CN04 re
d
CN43
1
SC-P2
P
CN61 green
CN202 re
d
C30,C32, C34,C36
N
CN1
X13
LED1:Normal operation(Lit
)
/ Error(Blink
)
*4
SC-
W
SC-L3
2
CNR
YB
P
63H1
4
SW
5
10
CN3D
1
CPU power supply circuit
blac
k
CNAC2
1
*3
ON
OF
F
10
SWU
1
white
CN212 re
d
SC-L2
2
CNTYP5 green
CN801 re
d
5
˚
IP
M
4
SC-P1
FT
-P
black
red
DB1
CT3
C1
CNTYP blac
k
black
TB22
SWP0
1
RSH1
R6
C1
1
63LS
ZNR1
U
L
Noise Filter
Z2
4
CN509 yellow
3
3
6
CN213 green
CN6 yellow
SV4b
Function setting
LED1 Display setting
/
Function setting
72C
Noise filter
Noise filte
r
6
7
re
d
Surge absorber
1
2
5
1
CNL
VD
CNL
VE
yello
w
1
F01 AC250V 3.15A
T
white
blac
k
1
CNIT re
d
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 s
ignal 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 plac
e
a
fter 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
t
he power
,keep the unit of
f for at least 10 minutes, and
c
onfirm 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.
3
4 1
R1,R
5
X05
X06
3
5
1
6
CN505
1
3
CNAC
12
5
1
2
3
4
4
4
CN2
21S4b
21S4a
Power Source 3~ 60Hz 460V
I/O Boar
d
CNAC4 black
21
CNOUT
2
21
yellow
451
CNP
W
21
blue
TB8
Operation ON signal
Pump Interloc
k
*7
2
31
CNA
0
green
*7
4
t˚
CN992A yello
w
TH
8
1
2
˚t
1
2
THIN
V
CNTYP1 blac
k
LEV6
M
1
2
3
4
6
1
2
3
4
5
6
LEV1
M
CNL
VA
CNL
VB
re
d
blue
1
3 CN5V yellow
yellow
CN63PW blue
CNOUT yello
w
CNAO green
<Symbol explanation>
X12
CN508 blue
3
6
SV4d
1
X0
2
CN502 blac
k
1
3
M 1~
MF
1
SV4a
X0
4
CN504 yellow
1
SV1a
3
CN507 blac
k
TB9
*7
*7
DC0-10V signal output 6:signal 5:GN
D
(IN)
(OUT
)
Power input AC24V or DC24V (non-polar
)
64
53
1
2
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
X09
3
5
1
6
SV9
SV7c
*9
*8
*10
*1
0
*10
*1
0
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 exis
t
*1
1 exis
t
MF1
Fan motor(Radiator panel
)
SV1a
SV4a,b,
d
TH8
HIC bypass,Controls refrigerant flow in HIC circui
t
Heat exchanger capacity contro
l
For opening/closing the bypass circuit under the O/
S
Wa
ter outlet temperatur
e
THINV
Outlet temp.detect of heat
exchanger for inverte
r
TH3
TH2
Subcool bypass outlet temperatur
e
Pipe temperatur
e
TH6
Subcooled liquid refrigerant temperatur
e
63HS1
21S4a
4-way valv
e
Explanatio
n
Symbol
63H1
63LS
Pressur
e
sensor
Pressur
e
switch
heat source uni
t
High pressure protection for th
e
High pressur
e
Low pressur
e
72C
Capacitor(inverter main circuit)
C30~C37
Solenoi
d
valve
Linear expansion valve
LEV1
DCL
DC reactor
TB1 TB3
TB7
Te
rminal
block
Central control transmission cabl
e
Indoor/Heat source transmission cabl
e
Power suppl
y
TB8
TH4 TH5
TH7
THHS
Function setting connector
IPM temperatur
e
Wa
ter inlet temperatur
e
ACC inlet pipe temperatur
e
Discharge pipe temperatur
e
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 preventio
n
For current detectio
n
R1,
5
RSH1
SV7a,b,c
Heat exchanger capacity contro
l
Heat exchanger capacity contro
l
Heat exchanger capacity contro
l
Magnetic relay(inverter main circuit)
Cooling/Heating switching
21S4b
Heat exchanger capacity contro
l
LEVINV
Heat exchanger for inverte
r
TB9
Power input and signal output for variable water flow valve
SV9
For opening/closing the bypass circui
t
CH1
1C
rankcase heater(for heating the compressor
)
*8
4
2 1
1
6
4
1
5
↑
↓
PQRY-P72, 96, 120, 144, 168, 192, 216, 240YLMU-A
Note: When using DC0-10V signal for modulated condenser water control,
care must be taken in selecting field provided flow switch - consult Mitsubishi representative.