24
6. APPENDIX
6.1 Electrical diagrams
Power supply
220-240V
/50Hz
HP5171DT3
N
1
3
2
4
5
6
7
8
01
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
COMP
U V W
U
W
V
RED BLK WHT
K2
N
N
N
N
K2
N
N
L
L
ACL-o
ut
ACN-ou
t
ACN-i
n
ACL-i
n
1
CN1
FM1
Fan Driver Board
N
GND
485A1
12V
N
L
485B1
Y/G
WHT
BLK
CN4
4V
4
1
R
ED
BL
K
WH
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
Remote
ON/OFF
connection
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
L
L
EE
V
5
4
4
A
GND
12V
B
W
U
V
AC-L
AC-N
L2
L1
CN708
CN604
CN607
Reactor
L2
L1
N
L
U
V
W
CPS Driver Board
N
L
HP
W
H
T
485A
+
YE
L
48
5B
-
R
ED
1
2V
Controller
BL
K
G
N
D
WiFi
Dry Contact
7 A max
WHT
485
A+
YE
L
485
B-
R
ED
12
V
BL
K
GN
D
L N
K2
1 2
1
2
3 4
3
4
3 4
MAIN BOARD
REMARKS:
PS:
PRESSURE SENSOR
CT:
EVAPORATOR TEMPERATURE SENSOR
AT:
AIR TEMPERATURE SENSOR
ET:
DISCHARGE TEMPERATURE SENSOR
OT:
OUTLET WATER TEMPERATURE SENSOR
EEV:
ELECTRONIC EXPANSION VALVE
SUT:
SUCTION TEMPERATURE SENSOR
FM1:
DC FAN MOTOR
LP:
LOW PRESSURE SWITCH
4V:
4 WAYS VALVE
FS:
WATER FLOW SWITCH
K2:
DRY CONTACT 7 A MAX
HP:
HIGH PRESSURE SWITCH
COMP:
COMPRESSOR
IT:
WATER INLET TEMPERATURE SENSOR
Summary of Contents for SUMHEAT HP5171DT3
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