3
4
5.Controlling and Operation
No.
No.
Sign
Sign
Meaning
Meaning
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
AI/0-5V_IN2
0-5V_IN3
0-5V_IN4
0-5V_IN5
0-5V_IN6
0-5V_IN7
0-5V_IN8
PWM_IN1
PWM_IN2
PWM_OUT1
PWM_OUT2
0-10V_OUT1
0-10V_OUT2
+5V
+12V
JP13_1
JP13_2
JP13_3
CN1
CN2
CN3
CN4
CN5
CN6
CN7
CN8
System 2 Compressor current
No use
No use
System 1 low pressure sensor
System 2 low pressure sensor
No use
No use
No use
Flow meter
No use
No use
No use
No use
No use
12V output
Wire controlled color display
Centrally controlled color display
DTU module
System 1 electronic expansion valve (big)
System 2 electronic expansion valve (big)
System 1 electronic expansion valve (small)
System 2 electronic expansion valve (small)
System 1 EVI electronic expansion valve
System 2 EVI electronic expansion valve
No use
No use
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
RO01
RO02
RO03
RO04
RO05
RO06
RO07
RO08
RO09
RO10
RO11
RO12
RO13
RO14
RO15
RO16
RO17
RO18
RO19
RO20
RO21A
RO21B
RO22A
RO22B
RO23
RO24
System 1 Compressor output
System 2 Compressor output
No use
No use
fan 1 output (high speed)
fan 2 output (high speed)
fan 1 output (low speed)
fan 2 output (low speed)
Circulating water pump output
System 1 four-way valve output
System 2 four-way valve output
Electric heating output
Chassis heating belt output
crankshaft heating belt output
No use
No use
Spray valve output
No use
Alarm output
No use
No use
No use
No use
No use
No use
No use
Note:
JP13_1 repr 12V, 485_A1, 485_B1, GND on the JP13 terminal;
JP13_2 repr 12V, 485_A2, 485_B2, GND on the JP13 terminal;
JP13_3 repr 12V, 485_A3, 485_B3, GND on the JP13 terminal.
