Low Compressor Discharge Temperature

Low Compressor Discharge Temperature FAQ

What should the discharge temperature of a compressor be?

This discharge temperature should never exceed 225°F. Carbonization and oil breakdown can occur if compressor discharge temperatures exceed 225°. The three causes for high discharge temperatures are: High condensing temperature. Low evaporator pressures and temperatures.

What causes low evaporator pressure and high compressor discharge?

However, there are many causes for low evaporating pressures and temperatures, which will also cause high compressor discharge temperatures, since low evaporating pressures cause high compressor discharge temperatures. Listed below are causes of low evaporator pressures: Dirty evaporator coil. Iced up evaporator coil. Evaporator fan motor out.

What causes low discharge line temperature?

Low discharge line temp can be caused by. – Overcharge (slight to moderate) – Low load / air flow (in some cases) – Compressor not Pumping (low compression) Keep in mind that keeping discharge line and compressor temperature in check will greatly increase compressor longevity with refrigerant cooled compressors.

What causes a high discharge valve temperature?

• Recirculated air over the condenser. Low evaporator pressures will also cause a high compressor discharge temperature, causing high discharge valve temperatures. When evaporator pressures are low, the compressor must compress refrigerant from this lower evaporator pressure to the condensing temperature.