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6. APPENDIX (continued)
ENPI9M
K2
L
N
1
2
Dry Contact
16A max
TO POWER
SUPPLY
220-240V~/50Hz
REMARKS:
AT: AIR TEMPERATURE SENSOR
COMP: COMPRESSOR
CT: EVAPORATOR TEMPERATURE SENSOR
EEV: ELECTRONIC EXPANSION VALVE
FM: FAN MOTOR
FS: WATER FLOW SWITCH
HP: HIGH PRESSURE SWITCH
IT: WATER INLET TEMPERATURE SENSOR
N
1
3
5
7
01
2
4
6
8
4V
CN9
t
ET
Pressure sensor
(PS)
K2
YEL
GND
RLY1
BLK
485B1
CN2
RED
485A1
12V
BLK
GND
YEL
485B2
CN8
WHT
485A2
RED
12V
t
t
t
t
t
Remote
ON/OFF
AT
CT
OT
IT
SUT
HP
LP
FS
LP: LOW PRESSURE SWITCH
OT: OUTLET WATER TEMPERATURE SENSOR
SUT: SUCTION TEMPERATURE SENSOR
4V: 4 WAYS VALVE
OUT2: DRY CONTACT 16 A MAX
ET: DISCHARGE TEMPERATURE SENSOR
K2: OUT 2 RELAY
PS: PRESSURE SENSOR
REMOTE ON/OFF: REMOTE ON/OFF SWITCH
3
CON1
4
A B GND 12V
Controller
FM
U V W
V
U
W
COMP
25
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