Insufficient Cooling - McQuay MCM 020 D Manual

Insufficient Cooling

Insufficient Cooling
Cycling On
Compressor
Cycling
Dual Pressure
Running
Overcurrent
Compressor
Discharge Gas
Thermostat or
Thermostat
High Discharge Pressure
High Discharge
Pressure
Condenser
Air Flow
Condenser
Air Inlet
Temperature
Low Discharge Pressure
Low Discharge
Pressure
Condenser
Air Flow
Tripping
Switch
Tripping
Relay For
Tripping
Internal
Restricted
High
Excessive
High Discharge Pressure or Low
Suction Pressure
Clogged Capillary or Pressure
Switch
Switch Faulty
High Voltage or Low Voltage
Single-Phase
High Discharge Pressure And
High Suction Pressure
Loose Connections
High Discharge Pressure And
Low Suction Pressure
Refrigerant Short Charge or
Refrigerant Leakage
High Suction Pressure
High Discharge Pressure or Low
Suction Pressure
Clogged Condenser Coil
Low Fan Speed
Malfunction Of Fan Cycling
System
Circulating Air Flow
Overcharged Refrigerant
Non-Condensable Gas
Restricted Liquid Line
High Suction Pressure
Malfunction Of Fan Cycling
System
Low Refrigerant Charge
Low Ambient Temperature
Page 83
See "High Discharge Pressure" or
"Low Suction Pressure"
Repair Clogging and Replace
The Switch If Required
Repair or Change If Necessary
Get The Right Voltage
Check The Power Line To The
Compressor : Repair When Necessary
See "High Discharge Pressure"
or "High Suction Pressure"
Tighten The Connections
See "High Discharge Pressure"
or "Low Suction Pressure"
Add Refrigerant. Repair
Leakage If Detected.
See "High Suction Pressure"
See "High Discharge Pressure"
or "Low Suction Pressure"
Clean The Condenser
Check The Voltage And Get
The Right Voltage
Check The System And
Repair If Required
Secure Space For
Required Air Flow
Purge The Refrigerant
Purge The Gas
Remove The Restriction
See "High Suction Pressure"
Check The System And Repair The
Components If Required
Add Refrigerant
See The Unit Working Range