PQRY-P-T(S)LMU, Y(S)LMU (April 2017 Ver2)
WR2-41
© 2017 Mitsubishi Electric US, Inc.
4. ELECTRICAL WIRING DIAGRAMS
TB
9
↑
↓
12
re
d
CNP
S
1
3
2
1
TP
1T
P2
TB
3
2
3
TB
7
M1
M2
M1
M2
S
5
12
34
LEV6
M
1
2
3
4
6
1
32
3
1
CN4 blac
k
31
t˚
12
1
3
3
1
4
3
2
3
1
1
TH
4
t
4
˚
1
1
CN2
11
green
2
3
12
3
321
3
2
2
3
1
2
3
1
2
yellow CNPO
W
t˚
65
4
X1
0
X0
8
X0
7
Unit addres
s
setting
3
5
1
6
12
3
4
3
green CN62
CN990 green
CNTYP4
CN201
Z2
5
TH
5
SWU2
LED1
SW6
10
Control Boar
d
CN4
0
63HS1
CN41
TH
7
1
5
1
SW4
LED3
3
SET
UP(SW6-10)
CN506 red
yellow CN3K
*3
Compressor ON/OFF output Error detection output
DC12V
CN5
1
SV7
b
blue CN3N
1
3
SV7
a
4
TB7 Powe
r
selectin
g
connecto
r
5
6
ON
OF
F
M-NE
T
power
supply circuit
1
2
M-NET
Boar
d
Power failur
e
detection circuit
Indoor/Heat source transmission cable
ON
1'
s
digit
CN102
4
1
10'
s
digit
OF
F
LED2:Normal operation(Lit
)
/ Error(Blink)
CNS
2
yello
w
CNDC re
d
2
LED1:Power supply to
Indoor/Heat source transmission lin
e
Central contro
l
transmission cable
ON
OF
F
1
CN0
4
re
d
CN6
1
green
CN202 red
*4
2
P
63H
1
4
SW5
10
CN3D
1
CPU power supply circui
t
blac
k
CNAC2
1
*3
ON
OF
F
10
SWU1
CN212 red
CNTYP5 green
CN801 red
SWP0
1
63LS
Z2
4
CN507 blac
k
3
6
SV9
Function setting
LED1 Display setting
/
Function setting
1
2
1
CNL
VB
re
d
1
F0
1
AC250
V
3.15A
T
CNIT re
d
X0
5
X0
6
3
5
1
6
CN505
1
3
CN1
10
blac
k
2 1
CNR
YA
re
d
1
2
CNA
C
1
2
5
1
3
4
4
4
CN2
21S4b
21S4a
I/O Boar
d
CNAC4 blac
k
21
CNOUT
2
21
yello
w
451
CNP
W
21
blue
TB
8
Operatio
n
ON signal
Pump Interloc
k
*7
2
31
CNA
0
green
*7
4
4
2 1
1
6
4
1
5
CN63P
W
blue
CNOUT yello
w
CNA
O
green
LEV7
M
1
2
3
4
6
CNL
VD
blue
LEV1NV
M
1
2
3
4
6
CNL
VE
yellow
˚t
1
2
TH1N
V
CNTYP1 blac
k
t˚
CN992A yellow
TH
8
1
2
X0
3
CN503 green
1
3
M 1~
MF
2
X0
4
CN504 yellow
1
SV1
a
3
X1
4
X1
3
CN509 yellow
3
6
SV4
b
5
1
SV4
a
5
X1
2
CN508 blue
3
6
SV4
d
1
X0
9
SV7
c
5
*7
*7
DC0-10V signal output 6:signal 5:GN
D
(IN
)
(OUT
)
Power input AC24V or DC24V (non-polar)
64
53
1
2
*8
LEV1
M
1
2
3
4
6
CNL
VA
5
*9
Ground
L3
L2
L1
Power Source 3~ 60H
z
208/230V
Power failure detection circuit
Surg
e
absorber
INV Boar
d
V
U
MS 3~
Moto
r
(Compressor)
red
Noise filte
r
IPM power
supply circuit
Nois
e
Filter
Noise filte
r
LED1:Normal
LED4:CPU in operation
operation(Lit
)
/ Error(Blink
)
CA
P
Boar
d
6
4
12
CNFG2
6
CN1
10
5
31
CN012
1
3
F001 AC250V 6.3A
T
F002 AC250V 6.3A
T
black
whit
e
red
TB21
TB22
TB23
CN001
53
1
L
TB
1
L3
L2
L1
black
whit
e
red
DCL
THL
t°
red
red
21 CNTH red
32
11
23
1
2
3
4
SC-L
SC-B
CNCT4A blue
CNR
Y
blue
CNCT4B blue
RY
1
CT
-4
R
S
T
black
whit
e
red
IP
M
°t THHS
5 4 3 2 1
2 1
CN2 re
d
CN4 green
*5
*5
RY2
RY3
RY4
RY
1
C1
F1 AC250V 3.15A
T
FT
-R21
FT
-R22
blac
k
red
R1
RY
2R
Y3
RY
4
2
1
CNR
Y2
blue
SC-C
SC-N1
CT
-3
SC-U
SC-V
SC-W
CT
-1
SC-N
2
CT
-2
red
whit
eb
lack
1
6
ON
OF
F
SW1
SC-P
SC-
N
PN
+
F001 AC250V 3.15A
T
C101~ C106
1 2
4 5
CNVDC
whit
eb
lack
W
*8.Di
fference of appliance.
Model name PQHY PQR
Y
Applianc
e
*8 do not exist *8 exist
*9.Di
fference of appliance.
Model name PQHY PQR
Y
Applianc
e
*9 exist *9 do not exist
*1.Single-dotted lines indicate wiring not s
upplied 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. M
ake sure the terminals are securely locke
d
in place after insertion. Press the tab on
t
he terminals to removed them
.
*6.Control box houses high-voltage parts. B
efore inspecting the inside of the control
box,turn of
f the power
,keep the unit of
f for
a
t least 10 minutes, and confirm that the
v
oltage between SC-P
and SC-N on CA
P
Boar
d
has dropped to DC20V or less.
*7.Refer to the Data book for wiring terminal block f
or Pump Interlock,Operation ON signal,DC0-10V
s
ignal output and Power input(24V).
3
1
CN5
V
yello
w
t˚
CN213 green
TH
6
1
2
*9
t˚
2
TH
3
*9
*9
t˚
2
TH
2
X0
2
CN502 blac
k
1
3
M 1~
MF
1
1
3
CN501 blue
X0
1
CH1
1
<Symbol explanation>
MF1,MF2
Fan motor(Radiator panel)
SV1
a
SV4a,b,
d
TH8
Heat exchanger capacity control
For opening/closing the bypass circuit under the O/S
Wa
ter outlet temperatur
e
THINV
Outlet temp.detect of heat exchanger for inverter
63HS
1
21S4a
4-way valv
e
Explanation
Symbol
63H1
63LS
Pressure sensor
Pressure switch
High pressure protection for the heat source unit High pressur
e
Low pressur
e
Capacitor
C1
filter circuit
Solenoid valve
Linear expansion valve
DCL
DC reactor
TB
1
TB
3
TB
7
Te
rminal
block
Central control transmission
cable
Indoor/Heat source transmission
cable
Power supply
TB
8
TH4 TH5
TH7
THHS
Function setting connector
IPM temperatur
e
Wa
ter inlet temperatur
e
ACC inlet pipe temperatur
e
Discharge pipe temperature
Operation ON signal, Pump Interloc
k
Z24,25
Current sensor(AC)
CT
-1,C
T-
2
L
Choke coil(for high frequency noise reduction)
LEV6 LEV7
R1
SV7a,b,
c
SV9
For opening/closing the bypass circuit
Heat exchanger capacity control
Heat exchanger capacity control Heat exchanger capacity control
LEVINV
Heat exchanger for inverter
21S4b
Cooling/Heating switching Heat exchanger capacity control
Current sensor(DC)
CT
-3,C
T-
4
TB
9P
ower input and signal output for variable water flow valve
LEV1
HIC bypass,Controls refrigerant flow in HIC circuit
C101~C106
inverter main circuit
Magnetic
filter circuit inverter main circuit (72C)
RY
1
RY
2,
RY
3,
RY
4
relay
TH2
Thermisto
r
TH3
TH6
Pipe temperatur
e
Subcool bypass outlet temperatur
e
Subcooled liguid refrigerant
THL
temperatur
e
DCL
temperatur
e
Resistor(For inrush current prevention)
CH1
1
Crankcase heater(for heating the compressor)
PQRY-P216, 240TLMU-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.