Trane CXAJ series Installation, Operation And Maintenance Manual page 53

25 CN13
26 CN14
27 TH4、TH9
The ambient temperature exceeds the
28 TH7
Communication fault between control panel
29 CN29
Communication fault between single unit
30 CN4/XP1
Fault Code Table for Main Control Panel
Note: the faults in this table are only displayed on the single unit controller and the centralized
controller.
Note 1: when this fault occurs, switch off all compressors. The water pump will continuously
Note 2: for CXAJ065/045 unit, there are no TH8, TH9, TH10, TH11, CN14, IND3 and IND9 inputs
Note 3: this alarm code will be displayed only when "module control" is selected.
Note 4: this alarm code will be displayed only when "module control" is selected and it is a
Low pressure overrun
Low pressure overrun 2
Coil superheating
working range
and centralized controller
controller and mainboard
operate. Lock "
antifreezing locking time of plate type heat exchanger for refrigeration
". the fault is permitted to be manually reset only when the water outlet
unit
temperature or the suction temperature is recovered to the normal state,
and relevant alarm codes.
modular host unit.
Switch off the compressor
of the system A. If this fault
78 78
occurs twice, switch off and
Switch off the compressor
of the system B. If this fault
7A 7A
occurs twice, switch off and
98 98
87 87
ED None
EE None
Troubleshooting
give an alarm.
give an alarm.
2
Switch off
Switch off
3
Switch off
Switch off
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