Carrier X-POWER Series - Page 140

R410A DC Inverter Series Carrier service manual
158 Troubleshooting
2. Main control board instructions
2.1 PCB ports instruction
No. Content Port voltage
1 CN10 Discharge temperature sensor port of the inverter compressor A DC0~5V (in dynamic change)
2 CN11 Discharge temperature sensor port of the inverter compressor A or B DC0~5V (in dynamic change)
3 CN8 The temperature of heat sink DC0~5V (in dynamic change)
5 CN22 Reserve
6 CN16
Wiring port for communication between indoor and outdoor units, indoor
unit network, outdoor unit network and network accounting
DC2.5~2.7V
7 CN1 Power port 208-230V
8 CN30 Power input of the NO.1 transformer 208-230V
9 CN29 Power input of the NO.2 transformer 208-230V
10 CN38 Loading output terminal 208-230V
11 CN36 EXV A driving port The first pin on the left: DC 12V
12 CN
41
Loading output terminal
208
-
230
V
13 CN35 EXV B driving port The first pin on the left: DC 12V
14 CN49 Loading output terminal 208-230V
15 CN57 L2 phase power
16 CN12 Power output of the NO.1 transformer
Yellow-Yellow: AC 9V; Brown-Brown:
AC 13.5V
17 CN15 Power output of the NO.2 transformer
Yellow-Yellow: AC 14.5V; Blue-Blue:
16
V
18 CN14 Activation port of inverter module B The left the third pin: DC3.3V
19 CN17 Port for inverter module B voltage inspection DC310V,+15V,N
20 CN18 Port for inverter module A voltage inspection DC310V,+15V,N
21 CN13 Activation port of inverter module A The left the third pin: DC3.3V
22 CN19 Power supply connected port of the main control panel GND 5V 12V GND 12V
23 CN25 ON/OFF signal input port for system low pressure inspection 0 or 5V
24 CN26 ON/OFF signal input port for system high pressure inspection 0 or 5V
25 CN
7
Reserve
26 CN6 Reserve
27 CN43 Current inspection port of the inverter compressor A and B
28 CN32 Input port for system high pressure inspection DC0~5V (in dynamic change)
29 CN28 Reserve
30 CN27 Inspection port for temperature of outdoor ambient and condensator coil DC0~5V (in dynamic change)
31 CN24 Communication ports between outdoor units DC2.3~2.8V
32 CN20 Control port of DC fan A The first pin on the left: DC 5V
33 CN21 Control port of DC fan B The first pin on the left: DC 5V
ENC1 ENC
3 S12 S
3
S7
S8 S1
ENC2
ENC
4
S4
S2
S6
S5
Outdoor
address
dial switch
Outdoor power
dial switch
Outdoor network
address dial switch
Query
button
Forced
cooling
33
3
5
6
7
2
1
8 9 10 11 12 13 14 15
17
16
30 29 28 27 26 25 24 23 22 21 20 19 18
32
31