Trane CGAJ series, Installation, Operation And Maintenance Manual, Page: 52 / 62

52
Troubleshooting
Fault Alarm Table for Controller (H Type)
No. Input Port Fault Description
Code of
Single unit
controller
Code of
Centralized
Controller
Fault Handling
1 TH1
No.1 analog sensor fault (water inlet
temperature)
20 20 Switch off
2 TH2
No.2 analog sensor fault (water outlet
temperature)
21 21 Switch off
3 TH3
No.3 analog sensor fault (suction
temperature A)
22 22 Switch off
4 TH4 No.4 analog sensor fault (fin temperature A) 23 23 Switch off
5 TH5
No.5 analog sensor fault (coil heating outlet
temperature A-1)
24 24 Switch off
6 TH6
No.6 analog sensor fault (coil heating outlet
temperature A-2)
25 25 Switch off
7 TH7
No.7 analog sensor fault (ambient
temperature)
26 26 Switch off
8 TH8
No.8 analog sensor fault (suction
temperature B)
27 27 Switch off 2
9 TH9 No.9 analog sensor fault (fin temperature B) 28 28 Switch off
2
10 TH10
No.10 analog sensor fault (coil heating outlet
temperature B-1)
29 29 Switch off 2
11 TH11
No.11 analog sensor fault (coil heating outlet
temperature B-2)
2A 2A Switch off
2
12 TH12
No.12 analog sensor fault (total water outlet
temperature)
2B 2B Switch off
4
13 CN13
No.13 analog sensor fault (suction pressure
A)
2C 2C Switch off
14 CN14
No.14 analog sensor fault (suction pressure
B)
2D 2D Switch off
2
15 IND3 High-voltage switch trip of compressor 2 H2 65 Switch off
2
16 IND4 High-voltage switch trip of compressor 1 H1 64 Switch off
17 IND5 Water flow switch alarm FL 6D Switch off
18 IND6 Overload of water pump OP 6A Switch off
19 IND8 Overload of compressor 1 C1 68 Switch off
20 IND9 Overload of compressor 2 C2 69 Switch off 2
21 CN13 Low-voltage trip of compressor 1 L1 66 Switch off
22 CN14 Low-voltage trip of compressor 2 L2 67 Switch off
2
23
TH2 and
TH1-TH2
Refrigeration antifreezing E3 8D
Switch off all compressors.
The water pump
continuously operates
1
24 TH3
、
TH8 Abnormal suction temperature E4 91
Switch off all compressors.
The water pump
continuously operates.
1 2