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6. APPENDIX (continued)
HP5301ET3
K2
R S T N
1
2
Dry Contact
To power supply
7 A max.
380-415V/3N~/50Hz
Fan Driver Board
L
R
N
Y/G
REMARKS:
PS: PRESSURE SENSOR
AT: AIR TEMPERATURE SENSOR
OT: OUTLET WATER TEMPERATURE SENSOR
SUT: SUCTION TEMPERATURE SENSOR
LP: LOW PRESSURE SWITCH
FS: WATER FLOW SWITCH
HP: HIGH PRESSURE SWITCH
IT: WATER INLET TEMPERATURE SENSOR
30
3 4
1
2
3
4
1
N
3
5
N
02
2
4
6
Remote
ON/OFF
BLK
GND
CN1
CN4
YEL
485B1
WHT
485A1
12V
CN9
FM1
CN11
1
4
WiFi
Controller
5
3
R
7
01
4
6
8
R
7
8
4V
K2
Main Board
ET
CT
t
t
A13
A12
A10
A8
A6
5V
A11
A9
A7
A5
5V
t
t
Pressure sensor
(PS)
AT
OT
CT: EVAPORATOR TEMPERATURE SENSOR
ET: DISCHARGE TEMPERATURE SENSOR
EEV: ELECTRONIC EXPANSION VALVE
FM1: DC FAN MOTOR
4V: 4 WAYS VALVE
K2: DRY CONTACT 7 A MAX.
COMP: COMPRESSOR
DC+
DC1+
DC-
DCP-IN
DC1-
DCP-OUT
L N
4
DCN-OUT
CPS Driver Board
2
R
S
electric reactor
RLY1
CN2
2
HP
FS
IT
4
CN8
t
1
A2
A4
CN13
A3
A1
3
t
4
SUT
LP
B
DCN-IN
A
2
CN602
GND
12V
JP601
CN605
GND
5V
T
U
V
W
V
U
W
COMP
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