Mitsubishi Electric PUMY-P100VHMA Technical & Service Manual page 21

PUMY-P100VHMA(-BS) PUMY-P125VHMA(-BS) PUMY-P140VHMA(-BS)
SYMBOL NAME
TB1 Terminal Block <Power Supply>
TB3 Terminal Block <Comunication Line>
TB7 Terminal Block <Centralized Control Line>
MC Motor For Compressor
MF1,MF2 Fan Motor
21S4 Solenoid Valve<Four-Way Valve>
63H High Pressure Switch
63L Low Pressure Switch
63HS High Pressure Sensor
SV1 Solenoid Valve<Bypass valve>
TH3 Thermistor<Outdoor Pipe>
TH4 Thermistor<Discharge>
TH6 Thermistor<Low Pressure Saturated>
TH7 Thermistor<Outdoor>
TH8 Thermistor<Heatsink>
Reactor
DCL
ACTM Active Filter Module
CE Main Smoothing Capacitor
P.B. Power Circuit Board
TABU/V/W Connection Terminal<U/V/W-Phase>
TABS/T Connection Terminal<L/N-Phase>
TABP1/P2/P Connection Terminal<DC Voltage>
TABN1/N2/N Connection Terminal<DC Voltage>
DS2,DS3 Diode Bridge
IPM Power Module
N.F. Noise Filter Circuit Board
Connection Terminal<L-Phase>
LI/LO
NI/NO Connection Terminal<N-Phase>
EI,E2 Connection Terminal<Ground>
52C 52C Relay
C.B. Controller Circuit Board
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>
CNLVB Connector<To N.F. Board CN52C>
(Symbol of Board is CNLVB)
SS Connector<Connection For Option>
CN3D
Connector<Connection For Option>
CN3S Connector<Connection For Option>
CN3N Connector<Connection For Option>
CN51
Connector<Connection For Option>
LED1,LED2 LED<Operation Inspection Display>
LED3 LED<Power Supply to Main Microcomputer>
Fuse<T6,3AL250V>
F1,F2
X501~505 Relay
M-NET Power Circuit Board
M-NET P.B.
TP1 ConnectionTerminal<Ground>
Cautions when Servicing
WARNING: When the main supply is turned off, the voltage [340 V] in the main capacitor will drop to 20 V in approx. 2 minutes (input voltage: 240 V).
!
When servicing, make sure that LED1, LED2 on the outdoor circuit board goes out, and then wait for at least 1 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) and LED1, 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
Compressor
Indication 52C
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.
MULTI. B.
CNF1
MF1
1
(WHT)
7
MS
3~
MF2 CNF2
1
(WHT)
7
MS
3~
3
2
1
CNDC
(PNK)
52C 21S4
3 1 3 1
(BLK) (GRN)
21S4
TB3
2
RED
M1
M2
RED
S
TH8
TO INDOOR UNIT
CONNECTING WIRES
DC 30V(Non-polar)
TB7
YLW 2
M1
M2
YLW
S
FOR CENTRALIZED
CONTROL
DC 30V(Non-polar)
POWER SUPPLY
~/N 230V 50Hz
TB1
RED
L
BLU
N
GRN/YLW
2 3 4 5
21S4 SV1 (SV2)
63L 63H
TH7 TH6 TH3 TH4
63HS
t t t t
CN3D CN3S
1 3 1 4 1 2 2 1 (WHT) (RED)
63HS TH7/6 TH3 TH4
(WHT) (RED) (WHT) (WHT) 1 3 1
1 3
63L
(RED)
1
3
63H
(YLW)
TRANS
LED3
F1
F2
SV2 SV1
3 2 1 3 1 2 1
1 SS CNAC
(BLU)
(WHT)
(WHT) (RED)
SV1 2
P. B.
4
1
CNAF
(WHT)
CNDC
6
(PIN)
2
7
1
1
CN2
IPM
3
(WHT)
+ -
7
1
CN3
(WHT)
2
t
2
1 CN5
(RED)
2 +
2
1
CN4
2 (WHT)
WHT
TABN
CE
+
TABP
RED
V
W
U
MS
3~
MC
4
DCL
1
L1 L2
+
RED
-
BLK
ACTM
6 7 8
Always lit
— —
21
CN3N CNLVB
SWU2 SWU1 SW5 SW6
(BLU)
(RED)
3 1 3 1 6
SW1 SW8 SW2
2
SW4 SW3 SW7
1 5
CN51
1
(WHT)
CN4
CN2 LED1 LED2
(WHT)
(WHT)
1 7 2
1
2
7
CN102
(WHT)
CNS1 CNS2
4
CN41 CN40
(RED) (YLW)
(WHT) (WHT)
1 2 1 2
1 1
4 4
4
2 2
TABT
BLU
DS3
-
+
TABS
WHT
DS2
-
+
TABP1
RED
U
2
3
1
3
2
1
6
P RED
N1
N2
WHT
Io
1 MODEL SELECT 1:ON 0:OFF
MODELS
PUMY-P100VHMA
PUMY-P125VHMA
PUMY-P140VHMA
[Example]
When the compressor and
SV1 are turned on during cooling
operation.
1 2 3 4 5 6 7 8
4
M-NET P.B.
1 4
CN2
(WHT)
TP1 BLK
CN1
(WHT)
1
5
1
2
N. F.
1
2
2
BLK
E2
1
2
2
BLK
U E I
U
SW4
1 2 3 4 5 6
0 1 0 0 1 0
0 1 0 0 0 1
0 1 0 0 1 1