6.APPENDIX
Connections explanation
᧶
No.
Symbol
Meaning
1
OUT1
Compressor ( output 220-230VAC
)
2
OUT2
Water pump ( output 220-230VAC
)
3
OUT3
4-way valve ( output 220-230VAC
)
4
OUT4
High speed of fan ( output 220-230VAC
)
5
OUT5
Low speed of fan (output 220-230VAC
)
6
AC-L
Live wire ( input 220-230VAC
)
7
AC-N
Neutral wire ( input 220-230VAC
)
8
AI/DI01
Emergency switch
(
input
)
9
AI/DI02
Water flow switch
(
input
)
10
AI/DI03
System low pressure
(
input
)
11
AI/DI04
System high pressure
(
input
)
12
AI/DI05
System suction temperature
(
input
)
13
AI/DI06
Water input temperature
(
input
)
14
AI/DI07
Water output temperature ( input )
15
AI/DI08
System fan coil temperature
(
input
)
16
AI/DI09
Ambient temperature
(
input
)
17
AI/DI10
Mode switch / coil 2 temperature
(
input
)
18
AI/DI11
Master-slave machine switch / Antifreeze temperature
(
input
)
19
AI12(50K)
System Exhaust temperature
(
input
)
20
0_5V_IN
Compressor current detection/Pressure sensor(input)
21
PWM_IN
Master-slave machine switch / Feedback signal of EC fan ( input )
22
PWM_OUT
AC fan control ( output )
23
0_10V_OUT
EC fan control ( output )
24
+5V
+5V ( output )
25
+12V
+12V ( output )
26
GND
Frequency conversion board communications
27
485_B1
28
485_A1
29
12V
30
GND
Color line controller communication
31
485_B2
32
485_A2
33
12V
34
Cn9
Electronic expansion valve
35
GND
The port for centralized control
36
485_B3
37
485_A3
38
12V
39
FUSE
T5AL250V
19
Содержание HP50AEE
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Страница 18: ...4 USAGE 4 3 Parameter list and breakdown table 4 3 1Electronic control fault table 15 ...