HVAC Excellence 1

Heat which causes a change in temperature of a substance is called latent heat.

• True

• False

The evaporator transfers heat from the refrigerated space to the refrigerant.

• True

• False

A scroll compressor moves refrigerant by means of pistons.

• True

• False

A sight glass is typically installed in the suction line.

• True

• False

Moisture in the refrigeration system can cause compressor failure.

• True

• False

Zero PSIG is the same as atmospheric pressure.

• True

• False

An accumulator stores liquid refrigerant.

• True

• False

A thermostatic expansion valve maintains constant evaporator temperature.

• True

• False

A TEV sensing bulb must be mounted lower than the valve body.

• True

• False

Capillary tubes can maintain a constant evaporator temperature.

• True

• False