Mitsubishi Electric CMB-PW202V-J, Service Handbook

Page: 44 / 114

[
IV
Electrical Wiring Diagram ]
- 35 -
HWE09070 GB
IV Electrical Wiring Diagram [1] Electrical Wiring Diagram of the WCB
TB01
WCB Board
TB02
TH15
F01
TR
SVM1 21S4a
T1
t˚
TH16
t˚
LEV1
M
TH13
t˚
TH14
t˚
TH1
1
t˚
TH12
t˚
LEV3
M
Note:
1.
TB02 is transmission terminal block. Never connect power line to it.
2.
The initial set values of switch on WCB Board are as follows.
SW1:0 SW2:0
(Symbol explanation)
Symbol TR TH1
1
-16
LEV1,3 TB01 TB02 SVM1 21S4a F01
Name T
ransformer
Thermister sensor Expansion valve T
e
rminal block(for power source)
T
e
rminal block(for
T
ransmission)
Solenoid valve 4-way valve Fuse
AC250V 6.3A
F
T
O
NEXT
INDOOR UNIT
PULL
BOX
FUSE
(16A)
BREAKER
(16A)
POWER SUPPL
Y
˜220V
-240V
50Hz/60Hz
L N
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
M1 M2
S(SHIELD)
Indoor/outdoor T
ransmission line
1 3
Red
CNTR
X02 X01
CN26
1 3 5 7
AC250V 6.3A
F
ZNR02
13
5
ZNR01
DSA
CN12
U
LD1:CPU in operation
Function setting
ON
OFF
8
1
SW4
ON
OFF
8
1
SW5
ON
OFF
8
1
SW6
SW1
SW2
1's
digit
Unit address setting
10's digit
1 2 3 4 1 2 1 2 3 4 5 6 7 8
Red
32
1
2
1
Ye
llo
w
CN1
1
CN03
CN02
CN10 CN13
20V
㨪
22V
2
20V
㨪
240V
1 2 3 4 5 6 1 2 3 4 5 6
Red Ye
llo
w
CN05 CN07
U