25
REMARKS:
AT:
AIR TEMPERATURE SENSOR
LP:
LOW PRESSURE SWITCH
COMP:
COMPRESSOR
OT:
OUTLET WATER TEMPERATURE SENSOR
CT:
EVAPORATOR TEMPERATURE SENSOR
SUT:
SUCTION TEMPERATURE SENSOR
EEV:
ELECTRONIC EXPANSION VALVE
4V:
4 WAYS VALVE
FM:
FAN MOTOR
OUT2:
DRY CONTACT 16 A MAX
FS:
WATER FLOW SWITCH
ET:
DISCHARGE TEMPERATURE SENSOR
HP:
HIGH PRESSURE SWITCH
K2:
OUT 2 RELAY
IT:
WATER INLET TEMPERATURE SENSOR
PS:
PRESSURE SENSOR
REMOTE ON/OFF:
REMOTE ON/OFF SWITCH
6. APPENDIX (continued)
ENPI9M
CN9
485B1
GND
3
RLY1
OUT
2
OUT
3
AC
-N
1
OUT
4
OUT
5
485A1
12V
CN2
+12
V
+5
V
0~
10
V-OU
T
P
W
M-
O
U
T
AI1
2
AI/
D
I1
1
AI/
D
I1
0
AI/
D
I0
9
P
W
M
-IN
AI/
D
I0
8
AI/
D
I0
7
AI/
D
I0
6
AI/
D
I0
5
AI/
D
I0
4
AI/
D
I0
3
AI/
D
I0
2
AI/
D
I0
1
0~
5V
-IN
485A2
12V
CN8
485B2
GND
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
L
N
A B GND12V
YEL
RED
BLK
COMP
U V W
U
W
V
L
N
L N
1 2
L
N
N
EE
V
5
4V
FS
FS FS
LP
LP
H
P
H
P
LP
HP
t
5K
SUT
S
U
T
S
U
T
t
5K
IT
IT IT
t
5K
OT
O
T
O
T
C
T
C
T
t
5K
CT
AT A
T
t
5K
AT
N
N
4V
1
3
2
4
5
6
7
8
01
K2
1
2
N
N
N
N
FM
ET
ET
YEL
BLK
WHT
RED
4
YE
L
48
5B
-
BL
K
G
N
D
R
E
D
12
V
W
H
T
48
5A
+
CON1
L
K2
N
K2
L
N
RE
D
B
LU
R
ED
BL
K
W
H
T
t
50
K
ET
4
Pressure sensor
(PS)
Remote
ON/OFF
6.
8K
Controller
3
220-240V~/50Hz
TO POWER
SUPPLY
Dry Contact
16A max