PMML0175A-rev.1 - 6/2008
HARC-MODBUS - xxxxxxxxxxxxxxxxxx
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HARC-MODBUS - Installation Manual
6.3 Alarm code list for CHILLER
6.3.1 CHILLER alarms code list
CHILLER alarm
Description
H-LINK
7SEG1 7SEG2 Code
Failure of Water Inlet Temperature Thermistor 20
Failure of Water Outlet Temperature Thermistor
(only for single cycle unit)
21
Failure of Ambient Temperature Thermistor (open/short) 24
No Feedback Signal from Water Pump 26
Activation of Freeze Protection Control (only for single cycle unit) 27
Alarm of Water Failure (Differential Pressure Switch
or Flow Switch Option)-Condenser
28
Alarm of Water Failure (Differential Pressure Switch
or Flow Switch Option)-Evaporator
29
Activation of Thermostat for excessively High Water Temperature
(Only single cycle units)
30
Activation of additional protection device 31
Phase Abnormally 32
Error Communication between Control PCB (PCB
C1
, PCB
C2
)33
Error communication between Chiller and Remote Controller (H-LINK) 34
Error Communication between Expansion Valve PCB and Control PCB 36
Incorrect Operation
40~45,
47,47,54
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