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6. APPENDIX (continued)
HP5301DT3
Fan Driver Board
CN1
L
N
Y/G
FM1
3 4
K2
Y/G
L N
1
2
3
4
Dry Contact
TO POWER
Remote
7 A max
ON/OFF
SUPPLY
connection
220-240V~/50Hz
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
28
BLK
GND
CN4
YEL
1
N
3
485B1
WHT
485A1
2
4
12V
1
4
WiFi
Controller
CN9
CN11
A13
5V
5V
Pressure sensor
(PS)
N
N
5
7
01
6
8
1
L
3
5
7
02
2
4
6
8
P2
K2
4V
RLY1
Main Board
HP
FS
ET
CT
IT
t
t
t
A12
A10
A8
A6
A4
A2
A11
A9
A7
A5
A3
A1
3
t
t
t
4
AT
OT
SUT
LP
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.
PTC: THERMISTOR
KM1: COMPRESSOR SWITCH
COMP: COMPRESSOR
CPS Drive Board
CN614
12V
CN617
GND
A
CN618
B
CN604
CN608
CN607
P1
P2
PE ACN ACL L1 L2
W
V
U
P2
KM1
N
CN2
1
L4
2
4
CN8
1
RED BLK WHT
U V W
V
U
W
CN13
COMP
electric reactor
5
L
3
7
03
4
6
8
PTC
KM1
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