Mitsubishi Heavy Industries SRK28HJ Technical Manual page 11

Model SRK40HJ
Power source
1 Phase 220/230V 50Hz
/GN
BL
Sh1
BR
52C3 52C420S23D
Tr
CNC CNB
BR
1
CFI
WH
5
RD 3
ZNR
FM
I
Printed circuit board
FM
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
FM Flap 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) Th1 is room temperature thermistor. Th
(for details, refer to pages 14,15,17)
(3) Preset values:
23DH (defroster stop thermostat): opens at over 14˚C
63H (overload protection high pressure switch during heating): closes at 2.02 / opens at 2.41 (MPa)
Indoor unit
52C
PC
F
250V
52X
4
3.15A
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
/GN
T2 T1
BK
1 1
BK
WH
BK
2 2
WH
OR
3 3
BL
RD BK
4 4
RD
BK
4
Th1
Th2
FMo
Sh2
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
9
-
: http://splitoff.ru/tehn-doc.html
63H
RD
6
52X
5
2
2
52X
6
6
BK
2
H
7
OR
BK
20S 52X CM
S
5
8
7
CFo
52X
6
Cc
8
Parts name
Sh1
3
51C 2 3D
1
C
R