Wiring Diagram - Mitsubishi PUMY-P100YHM Technical & Service Manual

WIRING DIAGRAM

8
PUMY-P100YHM PUMY-P100YHM
PUMY-P125YHM PUMY-P125YHM
PUMY-P140YHM PUMY-P140YHM
SYMBOL NAME
TB1 Terminal Block <Power Supply>
TB3 Terminal Block <Transmission>
TB7 Terminal Block <Centralized Control>
MC Motor for Compressor
MF1,MF2 Fan Motor
21S4 Solenoid Valve<Four way valve>
SV1 Solenoid Valve<Bypass valve>
TH3 Thermistor<Outdoor Pipe Temperature>
TH4 Thermistor<Discharge Temperature>
TH6 Thermistor<Low Pressure Saturated Temperature>
TH7 Thermistor<Outdoor Temperature>
63HS High Pressure Sensor<Discharge Pressure>
63H High Pressure Switch
63L Low Pressure Switch
CB1,CB2 Main Smoothing Capacitor
CK Capacitor
RS Rush Current Protect Resistor
ACL1 ACL4 Reactor
~
P.B Power Circuit Board
TB-U/V/W
Connection Terminal<U/V/W-Phase>
TB-L1/L2/L3
Connection Terminal<L1/L2/L3-Power Supply>
TB-P2 Connection Terminal
TB-C1 Connection Terminal
TB-N1 Connection Terminal
CN2 Connection <To Multi Controller Board>
CN4 Connection <To Multi Controller Board>
CN5 Connection <To Noise Filter Circuit Board>
CNDC Connection <To Multi Controller Board>
MULTI.B. Multi Controller Board
F1,F2 Fuse<6.3A>
F500 Fuse<3A>
SW1 Switch<Display Selection>
SW2
Switch<Function Selection>
SW3
Switch<Test Run>
SW4
Switch<Model Selection>
SW5 Switch<Function Selection>
SW6 Switch<Function Selection>
SW7 Switch<Function Selection>
SW8 Switch<Function Selection>
SWU1 Switch<Unit Address Selection, 1st digit>
SWU2 Switch<Unit Address Selection, 2nd digit>
TRANS Transformer
LED1,2 Digital Indicator<Operation Inspection Display>
LED3 LED<Power Supply to Main Microcomputer>
CNS1 Connector<Multi System>
CNS2 Connector<Centralized Cotrol>
CNAC Connector<To Noise Filter Circuit Board>
CNDC
Connector<To Noise Filter Circuit>
CN2
Connector<To Power Circuit Board>
CN4
Connector<To Power Circuit Board>
CN40 Connector<Centralized Cotrol Power Supply>
CN41 Connector<For shorting Jumper Connector>
TH3 Connector<Thermistor>
TH4 Connector<Thermistor>
TH7/6 Connector<Thermistor>
63HS Connector<High Pressure Sensor>
63H Connector<High Pressure Switch>
63L Connector<Low Pressure Switch>
CNF1,CNF2 Connector<Fan Motor>
21S4 Connector<Four-way Valve>
1 MODEL SELECT 1:ON 0:OFF
SW4
MODELS
1 2 3 4 5 6
PUMY-P100YHM 1 1 0 0 1 0
PUMY-P125YHM 1 1 0 0 0 1
PUMY-P140YHM 1 1 0 0 1 1
Cautions when Servicing
WARNING: When the main supply is turned off, the voltage [540 V] in the main capacitor will drop to 20 V in approx. 5 minutes (input voltage: 380 V).
!
When servicing, make sure that LED1 and LED2 on the outdoor circuit board goes out, and then wait for at least 5 minute.
Components other than the outdoor board may be faulty: Check and take corrective action, referring to the service manual.
Do not replace the outdoor board without checking.
NOTES:
1. Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch
(SW1), LED1 and LED2 (LED indication) found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
Bit 1 2
Compressor
Indication 52C 21S4
operated
When fault requiring inspection has occurred,
the LED alternately indicates the inspection code and the location of the unit in which the fault has occurred.
1
1
1
SYMBOL NAME
SV1 Connector<Bypass Valve>
SS Connector<For Option>
CN3D
Connector<For Option>
CN3S
Connector<For Option>
CN3N
Connector<For Option>
CN51 Connector<For Option>
X501 505 Relay
~
CONV.B. Converter Circuit Board
L1-A1,L1-IN Connection Terminal<L1-Power Supply>
L1-A2,L1-OU Connection Terminal<L1-Power Supply>
L2-A2,L2-OU Connection Terminal<L2-Power Supply>
L3-A2,L3-OU Connection Terminal<L3-Power Supply>
N-IN Connection Terminal
CK-OU Connection Terminal
CN7 Connector<To Power Circuit Board>
MULTI. B.
CNF1
1 4 5 6 7
(WHT)
MF1
CNF2
1 4 5 6 7
(WHT)
MF2
F500
CNDC
(PNK)
52C 21S4
(BLK) (GRN)
3 1 3 1
21S4
TB3
M1 (BRN)
M2
(BRN)
S
TO INDOOR UNIT
CONNECTING WIRES
DC 30V(Non-polar)
TB7
M1 (ORN)
M2
(ORN)
S
RS
FOR CENTRALIZED
CONTROL
DC 30V(Non-polar)
NO FUSE
TB1
N.F.
BREAKER
LI1
L1 (RED)
LI2
L2 (WHT)
LI3
L3 (BLK)
NI
N (BLU)
POWER SUPPLY
CNAC1
GD1
3N~
(WHT)
AC380/400/415V 50Hz
3 4 5 6
SV1 (SV2) —
SYMBOL
N.F. Noise Filter Circuit Board
LI1/LI2/LI3/NI Connection Terminal<L1/L2/L3/N-Power Supply>
LO1/LO2/LO3/NO Connection Terminal<L1/L2/L3/N-Power Supply>
CNAC1 Connector<To Transmission Power Board>
CNAC2 Connector<To Multi Controller Board>
CNCT Connector<To Power Circuit Board>
CNL
Connector<To Reactor>
FUSE
Fuse<6.3A>
M-P.B. Transmission Power Board
CN1 Connector<To Noise Filter Circuit Board>
CN2 Connector<To Multi Controller Board>
63HS TH7TH6 TH3 TH4 63L 63H
CN3D
1 2 3 1 2 3 4 1 2 1 2
(WHT)
63HS TH7/6 TH3 TH4
1 2 3
(WHT) (RED) (WHT) (WHT)
63H
63L
(YLW) 1 3
(RED)
TRANS
(WHT)
7 6 5 4 3 2 1
LED3
F1
F2
CNS1 CNS2
SS
SV2 SV1
(RED) (YLW)
(BLU) (WHT) (WHT)
CNAC
2 1
3 1 2 1 3 1 2 1
(RED)
SV1
3 2 1 7 6 5 4 3 2 1
CN7 CN2
(WHT) (WHT)
TB-W
+
TB-V
TB-U
-
TB-L3
+
TB-L2
TB-L1
-
+
+
+ +
CB1 CB2
CN5 CNAC2
1 2 1 3
(RED) (RED)
LO1
(RED)
LO2
(WHT)
LO3
(BLK)
NO
(BLU)
+
CNDC CNL
GD2
3 1 1 3 3 1
(PNK) (BLU)
7 8
Always lit
—
20
NAME
CN3S CN3N
SWU2 SWU1 SW5 SW6
(RED) (BLU)
1 2 3 1 2 3
SW1 SW8 SW2
SW4 SW3 SW7
1 2 3 4 5
1
CN51
(WHT)
LED1 LED2
88 88
CN2
CN4
(WHT)
2 1
CN102
(WHT)
4 3 2 1
CN41 CN40
(WHT) (WHT)
2 1
4 3 2 1 4 3 2 1
M-P.B.
1 2 3 4
CN2
(WHT)
TP1
P.B.
CN1
(WHT)
3 1
(BLK)
(WHT)
MC
(RED)
(BLK)
(WHT)
(RED)
CONV.B.
CK
ACL1
ACL2
ACL3
ACL4
[Example]
When the compressor and
SV1 are turned on during cooling
operation.
1 2 3 4 5 6 7 8