Wiring Diagram - Mitsubishi Electric PUMY-P250YBM Technical & Service Manual

WIRING DIAGRAM

6
MULTI. B.
MF1
MS
3~
1
MF2
MS
MS
3~
3~
1
2
SV3
(BK)
1
SV3
TB3
M1
TO INDOOR UNIT
M2
OR BRANCH BOX
30V DC (Non-polar)
S
TB7
M1
FOR CENTRALIZED
CONTROL
M2
30V DC (Non-polar)
S
TB1B
B1
B2
TO BRANCH BOX
TB1
L1
POWER SUPPLY
L2
3N~
380-400-415V 50Hz
L3
N
*1 MODEL SELECT
The black square ( ) indicates a switch position.
MODELS
PUMY-P250YBM
PUMY-P300YBM
SYMBOL
TB1 Terminal Block <Power Supply>
TB1B Terminal Block <Branch Box>
TB3 Terminal Block <Branch Box/Outdoor Transmission Line>
TB7 Terminal Block <Centralized Control Transmission Line>
FUSE1, FUSE2 Fuse <T20AL250V>
MC Motor for Compressor
MF1, MF2 Fan Motor
63H High Pressure Switch
63HS High Pressure Sensor
63LS Low Pressure Sensor
SV1 Solenoid Valve Coil <Bypass Valve>
SV3 Solenoid Valve Coil <Oil return Valve>
21S4 Solenoid Valve Coil <4-Way Valve>
TH2 Thermistor <HIC Pipe>
TH3 Thermistor <Outdoor Liquid Pipe>
TH4 Thermistor <Compressor>
TH6 Thermistor <Suction Pipe>
TH7 Thermistor <Ambient>
TH8 Thermistor <Heat Sink>
OCH760
63LS 63HS
TH7 TH6 TH3 TH4
t° t° t°
CNF1
1 2 2 1
1 3 1 4
(WH)
7 63HS TH7/6 TH3 TH4
(WH) (RD) (WH) (WH)
63LS
CNF2 (BU) 63H
1 3
(BU) (YE)
7 1 3
1
CN2
(RD)
1
3
CNDC
(PK)
F1
F2
21S4 SV2 SV1 SS/BH
(GN) (BU) (GY) (WH)
3 1 3 1 3
1 3 1 3
21S4 SV1
RD
2
RD
BK
POWER BOARD
YE 2
YE
BK
FUSE1
BK
FUSE2
BU
U V
W
MS
3~
RD
MC
WH
BK
BU
RD WH BK
BU
SW2 SW4 SW8
ON ON ON
OFF OFF OFF
5 6 1 2 3 4 5 6 1 2
ON ON ON
OFF OFF OFF
5 6 1 2 3 4 5 6 1 2
NAME SYMBOL
RS Rush Current Protect Resistor
LEV-A, LEV-B Linear Expansion Valve
DCL Reactor
DCL2 Reactor
POWER BOARD Power Circuit Board
TBL1,TBL2,TBL3 Connection Terminal <L1/L2/L3-Power Supply>
TBP1,TBP2 Connection Terminal <Reactor>
TBU,TBV,TBW Connection Terminal <U/V/W-Phase>
X52CA,X52CC Relay with Connection Terminal
NF BOARD Noise Filter Circuit Board
LI1, LI2, LI3, NI Connection Terminal <L1/L2/L3/N-Power Supply>
LO1, LO2, LO3 Connection Terminal <L1/L2/L3-Power Supply>
EI, E2 Connection Terminal <Electrical Parts Box>
F1 Fuse <T10AL250V>
MULTI.B. Multi Controller Circuit Board
SW1 Switch <Display Selection>
SW2 Switch <Function/Model Selection>
SW3 Switch <Test Run>
SW4 Switch <Model Selection>
LEV-A
TH2 63H
M
t° t°
1 2
1 5 1
TH2 1 3 1 3 1 3
CNLVA
(BK) CN3D CN3S CN3N
(WH)
(WH) (RD) (BU)
1 3
CN52
(RD)
3
7
1 2
CN4
(WH)
7
2
LED3
CNS1 CNS2
(RD) (YE)
2 1 2 1
1 2
CNAC
(RD)
2
2 2
TH8
7
2 2
t°
7 1 2 CN4
1 2 1 2 1 CN2
(WH)
CN6 CN5
(RD)
(WH) (RD)
RD
TBP1
DCL
TBP2
RD
2
RS
NF BOARD
CNCT
(RD) 2 1
LI1
LI2
LI3
NI
~
F1
X52N
CNAC1
3 1 CN52 CNL
3 1 1
EI
(WH)
(RD) (BU)
3
DCL2
2
SW9
ON
OFF
3 4 5 6
ON
OFF
3 4 5 6
NAME SYMBOL
SW5
SW6
SW7
SW8
SW9
SWP1
SWP2
SWU1
SWU2
SS/BH
CN3D
CN3S
CN3N
CN51
LED1, LED2
LED3
F1, F2
M-NET P.B.
EM1
23
LEV-B
M
SWU2 SWU1
SW5 SW6
5
CNLVB
SW9 SWP1 SWP2
*1
(RD) *1
SW1 SW8 SW2
*1
1
5
SW4 SW3 SW7
CN51
*1
(WH)
LED1 LED2
CN102
(WH)
4 1
CN41 CN40
(WH)
(WH)
4 1 4 1
4
M-NET P. B.
1 4
CN2
(WH)
CN1
(WH)
EM1
BK
5 3 1
2
2
CNAC2
3 1
(RD)
LO1
RD
LO2
WH
LO3
BK
E2
BK
~
CNDC
3 3 1
(PK)
2
NAME
Switch <Function Selection>
Switch <Function Selection>
Switch <Function Selection>
Switch <Model Selection>
Switch <Function/Model Selection>
Switch <Display Selection>
Switch <Display Selection>
Switch <Unit Address Selection, ones digit>
Switch <Unit Address Selection, tens digit>
Connector <Connection for Option>
Connector <Connection for Option>
Connector <Connection for Option>
Connector <Connection for Option>
Connector <Connection for Option>
LED <Operation Inspection Display>
LED <Power Supply to Main Microcomputer>
Fuse <T6.3AL250V>
M-NET Power Circuit Board
Connection Terminal <Electrical Parts Box>