Table of Contents
Advertisement
Chiller Troubleshooting
Table 21. Chiller / Compressor alarms / Faults listing (continued)
Description
Code
A76
Compressor 3 interlock activated
A77
Compressor 4 interlock activated
A86
Cooling enable off
A90
Capacity limited
A91
Phase/Sequence alarm
aC1
TC1 communication error
a11
TC1 AC - Inverter Temperature
a12
TC1 AC - Discharge Temp
a13
TC1 AC - Suction Pressure
a14
TC1 AC - Discharge Pressure
a15
TC1 AC - 3 Phase Current Trip
a16
TC1 AC - Shaft Cavity Temperature
a17
TC1 AC - Leaving Air /Water
a18
TC1 AC - Total Compression Ratio
Fault
a19
TC1 AC - General Compressor
Fault
a1A
TC1 AC - Sensor error
a1B
TC1 AC - SCR Fault
a1C
TC1 AC - Lock out Fault
a1D
TC1 AC - Motor Thermistor
a1E
TC1 AC - Super Heat Fault
a1F
TC1 ANC - Inverter Temperature
a1G
TC1 ANC - Discharge Temp
a1H
TC1 ANC - Suction Pressure
a1I
TC1 ANC - Discharge Pressure
a1J
TC1 ANC - 3 Phase Current Trip
a1K
TC1 ANC - Shaft Cavity
Temperature
a1L
TC1 ANC - Leaving Water
a1M
TC1 ANC - Total Compression
Ratio Fault
a1N
TC1 ANC - SCR Temperature
a1O
TC1 ANC - Super Heat
aC2
TC2 communication error
a21
TC2 AC - Inverter Temperature
a22
TC2 AC - Discharge Temp
a23
TC2 AC - Suction Pressure
a24
TC2 AC - Discharge Pressure
68
Reset
(a)
Period
(b)
Start-up
-1
0
0
-1
0
0
-1
0
0
-1
0
0
0
0
0
-1
0
60
-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
60
-1
0
0
-1
0
0
-1
0
0
-1
0
0
Alarm
Active
(c)
Steady
(d)
in Off
(e)
Relay
0
0
0
0
0
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
0
X
0
X
0
0
X
0
X
0
X
0
X
Warning
Compressors
(f)
Relay
(g)
X
-
X
-
-
X
-
X
OFF
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)
Advertisement
Table of Contents
