25
6. APPENDIX (continued)
HP5211DT3 / HP5251DT3
N
1
3
2
4
5
6
7
8
01
N
L
N
N
N
N
N
4V
1
3
2
4
5
6
7
8
02
N
L
Y/G
YEL
L
N
R
ED
BL
U
A
GND
12V
B
P1
W
U
V
P2
PE ACN ACL L1 L2
CN614
CN617
CN618
CN604
CN608
CN607
P1
P2
L4
N
U
V
W
COMP
U V W
U
W
V
RED BLK WHT
PTC
K2
N
N
N
1
3
2
4
5
6
7
8
03
L4
L4
-T
L4
L
P2
L
N
KM1
L
N
N
K2
N
N
N
L
L
ACL-o
ut
ACN-ou
t
ACN-i
n
ACL-i
n
CN1
FM1
N
GND
485A1
12V
N
L
485B1
Y/G
WHT
BLK
CN4
L
L
4V
4
1
R
ED
BL
K
W
H
T
Pressure sensor
(PS)
CN9
3
RLY1
O
U
T2
O
U
T3
AC-N
1
O
U
T4
O
U
T5
CN2
CN8
4
CN13
A1
A3
A5
A7
A9
A11
t
5K
SUT
LP
A4
A6
A8
A10
A12
A2
FS
t
5K
IT
t
5K
CT
ET
t
50
K
t
5K
OT
t
5K
AT
6.
8K
CN11
A13
G
ND
G
ND
G
ND
G
ND
+12V
0~10V-O
UT
PW
M
-IN
PWM
-OU
T
5V
5V
L
L
KM1
EE
V
5
P2
L4
L
L
N
N
L
N
N
1
POWER SUPPLY
220-240V~/50Hz
4
electric reactor
HP
H
P
OHP
H
P
O
H
P
5 6 7 8
O
H
P
5
8
5
8
4
W
H
T
485A
+
YE
L
485
B-
R
ED
1
2V
Controller
BL
K
G
N
D
WiFi
W
H
T
48
5A
+
YE
L
485
B-
R
ED
12
V
BL
K
G
N
D
L N
K2
1 2
1
2
3 4
3
4
3 4
Remote
ON/OFF
connection
Dry Contact
7 A max
CPS Drive Board
Fan Driver Board
Main Board
REMARKS:
PS:
PRESSURE SENSOR
EEV:
ELECTRONIC EXPANSION VALVE
AT:
AIR TEMPERATURE SENSOR
FM1:
DC FAN MOTOR
OT:
OUTLET WATER TEMPERATURE SENSOR
HP:
HIGH PRESSURE SWITCH
SUT:
SUCTION TEMPERATURE SENSOR
OHP:
THERMAL PROTECTION
LP:
LOW PRESSURE SWITCH
4V:
4 WAYS VALVE
FS:
WATER FLOW SWITCH
K2:
DRY CONTACT 7 A MAX.
IT:
WATER INLET TEMPERATURE SENSOR
PTC:
THERMISTOR
CT:
EVAPORATOR TEMPERATURE SENSOR
KM1:
COMPRESSOR SWITCH
ET:
DISCHARGE TEMPERATURE SENSOR
COMP:
COMPRESSOR
Summary of Contents for SUMHEAT HP5131DT3
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