Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 65

2.3 ELECTRICAL DATA
2.3.1 Electrical wiring
Models SRK328HENF-L2, 408HENF-L2
Power source
1 Phase 220/240V 50Hz
Y/GN
BL
Sh1
BR
52C3
Tr
CNC CNB
BR CFI
1
WH 5
RD 3
ZNR
FM
I
Printed circuit board
LM
Color symbol
BK Black
BL Blue
BR Brown
RD Red
OR Orange
WH White
Y/GN Yellow/Green
Meaning of marks
Symbol
Cc Capacitor for CM
CF
Capacitor for FM
I
CF
Capacitor for FMo
O
CM Compressor motor
F Fuse
FM Fan motor (Indoor unit)
I
FM Fan motor (Outdoor unit)
O
LM Louver motor
PC Photo coupler
Table of relay operations
Operation
Relay Control
symbol part
52X 20S
4
52X
5
FM
O
52X
6
52C CM
Notes (1) ; denotes magnetized relay
(2) Th is room temperature thermistor. Th
1
(for details, refer to pages 71,72,74)
(3) Preset values:
23DH (defroster stop thermostat): opens at over 14˚C
63H (overload protection high pressure switch during heating): closes at 1.86(19.0) / opens at 2.41(24.5) [MPa(kgf/cm
Indoor unit
52C4 20S 23D
52C
PC
F
250V
52X
3.15A 4
Wireless
R-Amp
Display
52C 52X
4
Parts name
I
Cooling Heating Defrost
×
: denotes demagnetized relay
(the heat exchanger thermistor) is the hot start, hot keep, and frost prevention thermistor.
2
Outdoor unit
Y/GN
T2 T1
BK
1 1
BK
BK
WH 2 2
WH
OR
3 3
BL
BK
RD
4 4
RD
BK
Th1
Th2
Symbol
Th Thermistor
1,2
Tr
Transformer
ZNR
Varistor
20S 4 way valve, coil
51C Motor protector for CM
52C Magnetic conductor for CM
52X Auxiliary relay
4,5,6
63H High pressure switch
23DH Defrost thermostat
SRK-H
63H
RD
6
52X
5
4 2
2
52X
6
6
BK
23D 2
H
7
OR
BK
FMo
20S 52X
5
S
8
7
CFo 52X
6
8
Sh2
Parts name
2
)]
Sh1
3
51C
1
C
CM
R
Cc
63