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Chiller Troubleshooting
Table 21. Chiller / Compressor alarms / Faults listing (continued)
Description
Code
a3E
TC3 ANC - Super Heat
a3F
TC3 ANC - Inverter Temperature
a3G
TC3 ANC - Discharge Temp
a3H
TC3 ANC - Suction Pressure
a3I
TC3 ANC - Discharge Pressure
a3J
TC3 ANC - 3 Phase Current Trip
a3K
TC3 ANC - Shaft Cavity
Temperature
a3L
TC3 ANC - Leaving Water
a3M
TC3 ANC - Total Compression
Ratio Fault
a3N
TC3 ANC - SCR Temperature
a3O
TC3 ANC - Super Heat
aC4
TC4 communication error
a41
TC4 AC - Inverter Temperature
a42
TC4 AC - Discharge Temp
a43
TC4 AC - Suction Pressure
a44
TC4 AC - Discharge Pressure
a45
TC4 AC - 3 Phase Current Trip
a46
TC4 AC - Shaft Cavity Temperature
a47
TC4 AC - Leaving Air /Water
a48
TC4 AC - Total Compression Ratio
Fault
a49
TC4 AC - General Compressor
Fault
a4A
TC4 AC - Sensor error
a4B
TC4 AC - SCR Fault
a4C
TC4 AC - Lock out Fault
a4D
TC4 AC - Motor Thermistor
a4E
TC4 ANC - Super Heat
a4F
TC4 ANC - Inverter Temperature
a4G
TC4 ANC - Discharge Temp
a4H
TC4 ANC - Suction Pressure
a4I
TC4 ANC - Discharge Pressure
a4J
TC4 ANC - 3 Phase Current Trip
a4K
TC4 ANC - Shaft Cavity
Temperature
a4L
TC4 ANC - Leaving Water
a4M
TC4 ANC - Total Compression
Ratio Fault
70
Reset
(a)
Period
(b)
Start-up
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
-1
0
0
Alarm
Active
(c)
Steady
(d)
in Off
(e)
Relay
0
X
0
X
0
X
0
0
0
X
0
X
0
X
0
X
0
X
0
X
0
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
0
0
X
0
X
0
X
0
X
Warning
Compressors
(f)
Relay
(g)
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
ARTC-SVX007A-EN
(h)
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