Electrical Data; Electrical Wiring - Mitsubishi Daiya SRK50HA User Manual

1.3 ELECTRICAL DATA

1.3.1 Electrical wiring

Models SRK50HA, 56HA
Power source
1 Phase 220/230/240V 50Hz
Y/GN
BL
BR
Y/GN
52C-4 G 52C-3 S
52C
BL
5
Y F
4
( )
250V
WH
FM 3
3.15A
I
BK
2
RD
1
CNU
CNM
LM
Printed circuit board
Color symbol
BK Black
BL Blue
BR Brown
RD Red
OR Orange
WH White
Y Yellow
Y/GN Yellow/Green
Meaning of marks
Symbol
C Capacitor for CM
C
CF Capacitor for FM
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 symbol Control part
52X 20S
1
52X
A
FM
52X
B
52C CM
; denotes magentized relay ×: denotes demagnetized relay
Notes (1)
(2) Th is room temperature thermistor. Th
1
(for details, refer to pages 19, 20, 22)
(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
12
Indoor unit
OR
RD
WH
BK
20S 23D
52C
PC
52X
1
52X1
ZNR
Parts name Symbol
O
52X
Cooling Heating
×
×
× ×
O
(the heat exchanger thermistor) is the hot start, hot keep, and frost prevention thermistor.
2
Outdoor unit
RD
4 4
BL
3 3
WH
2 2
BK
1 1
52X
TH
1
TH
2
Wireless
R-Amp
Display
Back up sw
Note(1) This figure shows SRK56HA. As for
Parts name
Th Thermistor
1, 2
ZNR Varistor
20S 4 way valve. coil
51C Motor protector for CM
52C Magnetic contactor for CM
Auxiliary relay
A, B, 1
63H High pressure switch
23DH Thermostat (Defrost)
Defrost
×
×
RD
RD 63H RD
RD
BK
A
23
DH
52X
B
BL
BK
OR
FM0 20S 52X
A
52X
CF
B
0
SRK50HA, 51C differs as shown in the fig-
ure below.
51C
2
)]
51C
CM
Cc