PQRY-P-T(S)LMU, Y(S)LMU (April 2017 Ver2)
WR2-39
© 2017 Mitsubishi Electric US, Inc.
4. ELECTRICAL WIRING DIAGRAMS
*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 connectin
g
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 th
e
control box,turn of
f the power
,keep th
e
unit of
f for at least 10 minutes, and
confirm that the voltage between
TB-
P
and
TB-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
*8.Dif
ference of appliance.
Model name
PQHY PQR
Y
Applianc
e
*8 do not exist *8 exist
*9.Dif
ference of appliance.
Model name PQHY PQR
Y
Applianc
e
*9 exist *9 do not exist
and Power input(24V)
.
Control Boar
d
LED3
LED2:Normal operation(Lit) / Error(Blink)
t˚
t˚
t˚
t˚
t˚
t˚
t˚
t˚
t˚
1
3
2
1
3
2
ON
OF
F
TB7 Powe
r
selectin
g
connecto
r
Compressor ON/OFF output Error detection output
*3
F0
1
AC250V 3.15
A
T
DC12V
SET
UP(SW6-10)
Function setting
LED
1
Display setting/ Function setting
Unit addres
s
setting
SWU2
SWU1
ON
OFF
ON
OFF
ON
OFF
*3
LED1
Power failure detection circuit
CPU power supply circuit
M
M
M
M
12
re
d
CNP
S
1
2
3
5
12
34
LEV6
1
2
3
4
6
1
32
3
1
CN4 blac
k
31
12
1
3
3
1
TH
2
4
1
CN21
1
green
2
3
123
32
1
2
3
1
2
3
1
yellow CNPOW
65
4
X08
X07
3
5
1
6
123
green CN62
CN990 green
CNTYP4
CN201
Z2
5
TH
5
SW
6
10
CN4
0
63HS1
CN4
1
TH
7
1
SW
4
3
CN506 re
d
yellow CN3
K
CN51
SV7b
blue CN3
N
1
3
SV7a
4 5
6
1
2
1'
s
digit
4
1
10'
s
digit
CNDC re
d
2
1
1
CN61 green
CN202 red
2
CN1
10
blac
k
P
63H
1
4
SW
5
10
CN3D
1
blac
k
CNAC2
1
10
CN212 red
2
CNTYP5 green
CN801 re
d
SWP1
63LS
Z2
4
1
2
CNL
VB
re
d
1
X05
5
1
1
3
2 1
CNA
C
CNR
YA
re
d
5
1
3
4
4
4
CN2
21S4
a
LEV7
1
2
3
4
6
CNL
VD
blue
LEVINV
1
2
3
4
6
CNL
VE
yellow
1
2
THIN
V
CNTYP1 blac
k
CN992A yellow
TH
8
1
2
X02
1
3
blac
k
MS 1~
CN502
X14
X13
3
5
1
6
CN509 yellow
SV4
b
SV4
a
X12
3
1
6
blue
SV4
d
CN508
1
2
4
1
6
1
5 4
MF
1
blue
CN63P
W
yellow
CNOUT
green
CNA
0
X10
3
1
blac
k
SV9
CN507
6
5
LEV1
1
2
3
4
6
CNL
VA
5
*8
CN213 green
TH
6
1
2
2
TH
3
2
TH
4
*9
*9
*9
*9
X04
1
3
yellow
CN504
SV1a
CN505
6
M-NET
Boar
d
Indoor/Heat source transmission cabl
e
Central control transmission cabl
e
*4
M-NET
power
supply circui
t
TP
1T
P2
TB
3T
B7
M1
M2
M1
M2
S
3
1
43
212
34
1
5
CN102
CNS
2
yellow
LED1:Power supply to Indoor/Heat source transmission line
CN0
4
red
CNI
T
re
d
12
↑
↓
Operation ON signal
Pump Interloc
k
*7
*7
*7
*7
DC0-10V signal output 6:signal 5:GND
(IN)
(OUT
)
Power input AC24V or DC24
V
(non-polar
)
I/O Boar
d
21
CNP
W
blue
CNAC4 blac
k
12
CNOUT
2
yellow
124
1
5
CNA
0
green
TB
8
2
3
4
TB
9
64
31
2
5
1
Motor
(Compressor)
V
U
W
MS 3~
re
d
whit
e
black
+
LED1:Normal operation(Lit) / Error(Blink)
LED4:CPU in operatio
n
*6
F001 AC250V 3.15A
T
INV Boar
d
1
2
CN2 re
d
3
red
CT
11
SC-V
CT12
SC-U
blac
k
whit
e
red
THHS
SC-T
TB-
N
CN4 yellow
SC-W
IP
M
SC-P1
TB-P
C01
1~C016
RSH01~RSH03
2
1
re
d
whit
e
blac
k
re
d
SC-P2
4
CNVDC
1
52
SC-R
SC-S
4
3
1
CN5V yellow
DCL
*5
R1
re
d
re
d
Nois
e
Filter
F001 AC250V 6.3A
T
F002 AC250
V
6.3A
T
Power Source 3
~
60H
z
208/230V
TB1
L1
L1
L2
L2
L3
L3
Ground
red
L
black
white
51
TB21
CN001
TB23
TB22
whit
e
re
d
3
black
Noise filte
r
Power failure detection circui
t
Surge absorber
1
3
CN012
X001
CNR1 re
d
1
3
TB31
TB32
21
CN72C re
d
12
6
4
CNFG2
X001
5
CN1
10
1
3
6
MF
1
SV1
a
SV4a,b,
d
TH
8
THIN
V
63HS
1
21S4
a
Explanation
Explanation
Symbol
Symbol
63H1
63LS
Pressure sensor
Pressure switch
X001
Capacitor(inverter main circuit
)
C01
1~C016
Solenoid valv
e
Linear expansion valv
e
DCL
TB
1
TB
3
TB
7
Te
rminal
bloc
k
cable
cable
TB
8
TH
4
TH
5
TH
7
THHS
Thermistor
Z24,2
5
CT
11
,1
2
L
Choke coil(for high frequency noise reduction)
LEV6 LEV7
Resisto
r
For inrush current prevention
For current detection
R1 RSH01~RSH03
SV7a,
b
SV9
Solenoid valv
e
For opening/closing the bypas
s
circuit
Heat exchanger capacity contro
l
Heat exchanger capacity contro
l
Heat exchanger capacity contro
l
LEVINV
Heat exchanger for inverte
r
Magnetic relay(inverter main circuit
)
Cooling/Heating switching
TB
9
Power input and signal output for variable water flow valv
e
LEV1
HIC bypass,Controls refrigeran
t
flow in HIC circuit
TH
2
TH
3
Pipe temperature
Subcool bypass outlet temperatur
e
TH
6
Subcooled liguid refrigeran
t
temperatur
e
<Symbol explanation>
4-way valv
e
High pressure protection for th
e
heat source unit High pressure Low pressure
Current sensor(AC
)
DC reacto
r
Fan motor(Radiator panel)
For opening/closing the bypas
s
circuit under the O/S
Power supply
Indoor/Heat source transmission
Central control transmission
Operation ON signal, Pump Interloc
k
Heat exchanger capacity contro
l
Discharge pipe temperatur
e
ACC inlet pipe temperatur
e
Wa
ter inlet temperatur
e
Wa
ter outlet temperatur
e
Outlet temp.detect of heat
exchanger for inverte
r
IPM temperatur
e
Function setting connecto
r
PQRY-P72, 96, 120TLMU-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.