During the defrost cycle of a hot-gas defrost system, the hot refrigerant vapor is used to melt the ice on the evaporator surface.

With any natural-convection condenser, the process of dispersing heat from the refrigerant becomes less effective as the ambient temperature decreases.

In a domestic unit, a hot-gas defrost system includes a bypass line that connects the ____ line to the evaporator inlet.

Match each of the following gas furnace-related terms with the statement that best describes it.

When the button is pressed on a through-the-door ice dispenser, the ____.

A(n) ____ condenser both takes in and exhausts air from the front or from the back of the cabinet.

A ____ condenser relies entirely on conduction to remove heat from refrigerant inside the condenser tubes.

A thermistor is a device that senses ____.

Gas combustion is used solely in central forced-air or hydronic heating systems.

In refrigerator-freezers where the evaporator is located in the freezer compartment, the temperature inside the fresh food compartment is maintained by ____.