HVAC Basics

Front

What separates the high and low pressure sides in a refrigeration system?

Back

Compressor and metering device

Front

What is the primary function of the compressor in a refrigeration cycle?

Back

To increase the temperature of the refrigerant by increasing its pressure

Front

What does the metering device do to the refrigerant?

Back

Lowers its pressure to decrease temperature

Front

What state is the refrigerant in when it enters the compressor?

Back

Low pressure low temperature vapor

Front

What is the main purpose of the refrigeration cycle?

Back

To move heat from the indoor coil to the outdoor coil

Front

What happens to the refrigerant in the condenser coil?

Back

It rejects heat and becomes a high pressure high temperature liquid; It changes from a vapor to a liquid state.

Front

What is the role of the filter dryer in the refrigeration system?

Back

To absorb water vapor from the system

Front

What is the condition of the refrigerant as it enters the metering device?

Back

High pressure high temperature subcooled liquid

Front

What is the significance of the refrigerant being 'saturated'?

Back

It is at its boiling point and both liquid and vapor exist simultaneously.

Front

Why is it important that only vapor refrigerant enters the compressor?

Back

To prevent damage to the compressor