Troubleshooting guide

MAGNUM VERSION 8 MANUAL REVISION 3.1
115
Dirty Oil Filter (Fixed Step Compressors only)
If the difference between the discharge pressures minus the oil pressure is above the value of the
Setpoint for the time specified in the Time (sec)’ field, a DIRTY OIL FILTER alarm will generate. Refer to
section 13 Setpoint #97.
Low Discharge Superheat
If the discharge superheat is below the value in Setpoint for the time specified in the Time (sec)’ field, then
the circuit will be Locked Out and a LOW DISCHARGE SUPERHEAT alarm will be generated. Refer to
section 13 Setpoint #84.
8.4. TurboCor Compressor Alarms
Inverter Temperature Fault (Hex code =0x0001)
The measured Inverter Temperature has exceeded either the Alarm or Fault limit, probably due to
insufficient inverter cooling.
Discharge Temperature Fault (Hex code =0x0002)
The measured Discharge Temperature has exceeded either the Alarm or Fault limit, probably due to
insufficient charge (not enough gas).
Suction Pressure Fault (Hex code =0x0004)
The measured Suction Pressure has exceeded either the Alarm or Fault limit, probably due to insufficient
charge or insufficient system load.
Discharge Pressure Fault (Hex code =0x0008)
The measured Discharge Pressure has exceeded either the Alarm or Fault limit, probably due to a faulty
condenser. *Instantaneous lock out at fault level.
3 Phase Over Current Fault (Hex code =0x0010)
The estimated Mains Supply voltage has exceeded either the Alarm or Fault limit, probably due to
excessive system load on mains supply (usually the compressor is pumping liquid). *Instantaneous lock
out at fault level.
Cavity Temperature Fault (Hex code =0x0020)
The measured Cavity Temperature has exceeded either the Alarm or Fault limit, probably due to
insufficient motor cooling (shaft cavity).
Leaving Fluid Temperature Fault (Hex code =0x0040)
The measured Air / Water Temperature has exceeded either the Alarm or Fault limit, probably due to
insufficient air / water flow.
Pressure Ratio Fault (Hex code =0x0080)
The measured Compression Ratio of Discharge and Suction has exceeded either the Alarm or Fault limit,
probably due to faulty condenser or insufficient load on the evaporator.
Generic Bearing/Motor/Compressor Fault (Hex code =0x0100)
If the Motor Fault Word, 40106, or the Bearing Fault Word, 40098, is different from 0, then the Generic
Compressor Fault is triggered.
Sensor Fault (Hex code =0x0200)
If the following measured degrees Celsius are surpassed, a Sensor Fault is triggered. The pressure
values are in kPa:
40105 Inverter Temperature>100 or < 0
40037 Cavity Temperature>100 or < -20
40034 Suction Temperature>100 or < -30
40036 Discharge Temperature>110 or < -30
40046 Leaving Water Temperature>100 or < -20
40031 Suction Pressure>1200 or < -30
40033 Discharge Pressure>3500 or < -30