WR2-40
PQRY-P-T(S)LMU, Y(S)LMU (April 2017 Ver2)
© 2017 Mitsubishi Electric US, Inc.
4. ELECTRICAL WIRING DIAGRAMS
*8.Di
fference of appliance.
*9.Di
fference of appliance.
*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 at both ends of the main capacitor (C1) has dropped to DC20V or less.
Pump Interlock,Operation ON signal,DC0-10V signal output and Power input(24V).
*7.Refer to the Data book for wiring terminal block for
Model name PQHY PQR
Y
Applianc
e
*8 do not exist *8 exist
Model name
PQHY PQR
Y
Applianc
e
*9 exist *9 do not exist
MF
1
SV1
a
SV4a,b,
d
TH
8
For opening/closing the bypas
s
THIN
V
63HS
1
21S4a
Explanation
Symbol
63H1
63LS
Pressure sensor
Pressure switch
X001
Capacitor(inverter main circuit
)
C1
Solenoid valv
e
Linear expansion valv
e
DC
L
TB
1
TB
3
TB
7
Te
rminal
bloc
k
cable
cable
TB
8
TH
4
TH
5
TH
7
THHS
Thermistor
Z24,25,26
ACCT1,
2
L
Choke coil(for high frequency noise reduction)
LEV6 LEV7
Resistor
For inrush current prevention
R1
SV7a,b,
c
SV9
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
)
21S4
b
Cooling/Heating switching Heat exchanger capacity contro
l
Current sensor(DC)
DCCT
1
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
temperatur
e
Subcooled liguid refrigeran
t
<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)
circuit under the O/S Heat exchanger capacity contro
l
Power supply Indoor/Heat source transmission
Central control transmission
Operation ON signal, Pump Interloc
k
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
+
~~
~
+
-
t˚
t˚
t˚
t˚
t˚
t˚
t˚
t˚
1
3
2
1
3
2
t˚
M 1~
MF
1
M
M
M
M
TH
4
TH
5
63HS1
TH
7
63LS
TH
8
TH
6
TH
3
TH
2
*9
*9
*9
LEV6
Z2
5
Z2
4
LEV7
LEV1NV
TH1NV
LEV1
*9
P
63H
1
Control Board
LED3
LED2:Normal operation(Lit) / Error(Blink
)
ON
OFF
*3
Compressor ON/OFF outpu
t
Error detection outpu
t
TB7 Powe
r
selecting connecto
r
*3
LED1
Unit address setting
SE
T
UP(SW6-10)
Function setting
LED
1
Display setting
/
Function setting
ON
OFF
ON
OFF
ON
OFF
SWU2
SWU1
DC12V
F0
1
AC250V 3.15A
T
Power failur
e
detection circuit
CPU power supply circui
t
12
re
d
CNP
S
1
2
3
5
12
34
1
2
3
4
6
1
32
3
1
CN4 blac
k
31
12
1
3
3
1
4
1
CN21
1
green
2
3
12
3
32
1
2
3
1
2
3
1
yellow CNPOW
65
4
X10
X08
X07
3
5
1
6
12
3
green CN62
CN990 green
CNTYP4
CN201
SW
6
10
CN40
CN41
1
SW
4
3
CN506 re
d
yellow CN3
K
CN51
SV7b
blue CN3N
1
3
SV7a
4 5
6
1
2
1'
s
digit
4
1
10'
s
digit
CNDC red
2
1
CN61 green
CN202 red
2
4
SW
5
10
CN3D
1
blac
k
CNAC2
1
10
CN212 re
d
CNTYP5 green
CN801 red
SWP0
1
CN507 blac
k
3
6
SV9
1
2
1
CNL
VB
red
1
X05
X06
3
5
1
6
CN505
1
3
CN1
10
blac
k
2 1
CNR
YA
re
d
1
2
CNA
C
5
1
3
4
4
4
CN2
21S4b
21S4
a
4
2 1
1
6
4
1
5
CN63P
W
blue
CNOUT yellow
CNA
O
green
1
2
3
4
6
CNL
VD
blue
1
2
3
4
6
CNL
VE
yellow
1
2
CNTYP1 blac
k
CN992A yellow
1
2
X02
CN502 blac
k
1
3
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
*8
1
2
3
4
6
CNL
VA
5
CN213 green
1
2
2
2
M-NET
Boar
d
TP
1T
P2
*4
Indoor/Heat source transmission cabl
e
Central control transmission cabl
e
M-NE
T
power
supply circui
t
TB
3T
B7
M1
M2
M1
M2
S
3
1
43
212
341
5
CN102
CNS
2
yellow
LED1:Power supply to Indoor/Heat source transmission line
CN04 red
CNI
T
red
12
I/O Boar
d
21
21
451
21
CNAC4 blac
k
CNOUT
2
yello
w
CNP
W
blue
TB
8
2
31
CNA
0
green
46
4
53
1
2
TB
9
*7
*7
*7
*7
Motor
(Compressor
)
V
W
U
MS 3~
blac
k
white
red
Power Source 3
~
60Hz 208/230V
Ground
L3
L2
L1
TB1
L3
L2
L1
black
red
white
L
Nois
e
Filter
Noise filte
r
Power failure
detection circui
t
Surge absorber
*5
re
d
F001 AC250V 6.3A
T
F002 AC250V 6.3A
T
CN001
53
1
TB22
TB23
TB21
Diode stac
k
CN012
1
3
U
ZNR00
5
F003 AC250V 6.3A
T
TB42
X001
black
re
d
DCL
CN72C re
d
3
1
CNR1 re
d
TB31
R1
X001
1
2
5
6
CN1
10
31
6
4
12
CNFG2
OF
FO
N
LED3:Charge
LED1:Normal operation(Lit) / Error(Blink
)
LED4:CPU in operatio
n
INV Board
*5
*6
F0
2
AC250V 3.15A
T
IPM power
supply circuit
SW
1
1
6
22
1
1
1
2
CN2
1
6
5
CNVDC
4
CNDC2
1
ACCT
2
C1
IP
M
4
CN43 yellow
N
WU
P
CNDC1
1
4
V
1
25
CNIPM
FT
-N
5
7
SC-P1
1
DCCT
1
4
CNCT
ACCT
1
black
4
3
2
1
CNCT
2
blue
4
3
2
1
12
CNF
G
blue
1
2
re
d
whit
e
black
red
THHS
Z26
CNTYP
CNT
H
green
3
1
CN5V yellow
Operation ON signal
Pump Interloc
k
DC0-10V signal output 6:signal 5:GND
(IN)
(OUT)
Power input AC24V or DC24V (non-polar
)
↑
↓
PQRY-P144, 168, 192TLMU-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.
