Heat pump

Front

An air-to-air heat pump has many of the same components as an air conditioning system. The major difference is that a heat pump also has an

Back

Reversing valve

Front

The outdoor temperature at which the heat pump provides the same amount of heat as the heat loss of the conditioned space without an auxiliary heat is known as the;

Back

Initial balance point

Front

What is the difference between "demand defrost" and "timed defrost"?

Back

Demand defrost happens only when needed and timed defrost is based on time/temperature.

Front

The thermostat that controls the auxiliary electric heat according to the outdoor temperature is called the;

Back

Outdoor ambient thermostat

Front

At what temperature is an outdoor ambient thermostat normally set?

Back

Slightly above the initial balance point.

Front

The outdoor coil is frozen solid on a "no heat" service call. The most likely reason is;

Back

The outdoor fan is inoperative.

Front

In order to determine a heat pumps' balance point, you must first calculate;

Back

The building's heat load.

Front

When a heat pump is used for heating and cooling, the system is sized by the;

Back

Cooling load.

Front

A high efficiency heat pump system designed to function from high to low ambient conditions below 10*F, may have?

Back

Two outdoor coils with each one incorporating a dual stage compressor.

Front

Room thermostats for heat pumps should be installed;

Back

As near to the main return air grill as possible.