Hitachi HARC-MODBUS - Cycle Alarms Code List

PMML0175A-rev.1 - 6/2008
HARC-MODBUS - xxxxxxxxxxxxxxxx
17
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HARC-MODBUS - Installation Manual
6.3.2 Cycle alarms code list
Cycle alarm
Description
H-LINK
7SEG1 7SEG2 Code
 
Activation of High Pressure Switch 1
 
Activation of Low Pressure Control 2
 
Activation of Compressor Internal Thermostat 3
 
Activation of Discharge Gas Thermistor 4
 
Activation of Thermal Relay for Comrpressor or
Malfunction of Auxiliary Relay ARrn
5
 
Incorrect Setting of Fan Number 6
 
Activation of Fan Motor Internal Thermostat 7
 
Excessively Low Pressure 8
 
Excess Low Temperature of Cooler Inlet Refrigerant 10
 
Failure of Discharge Gas Pressure Sensor (open/short) 11
 
Failure of Suction Gas Pressure Sensor (open/short) 12
 
Failure of Water Outlet Temperature Thermistor
(for non single cycle unit)
14
 
Failure of Discharge GasThermistor (open/short) 15
 
Failure of Suction Gas Thermistor (open/short) 16
 
Phase Abnormally 17
 
Failure of Cooler Inlet Refriegerant Thermistor (open/Short) 19
 
Activation of Suction Gas Thermistor 20
 
Activation of Freeze Protection Control (for non single cycle unit) 21
 
Failure of Thermistor set before Expansion Valve (open/short) 23
 
Failure of Water Outlet Thermistor - Cooler Backside (open/short) 24
! 
Inverter power Supply abnormally 34