Exam 46: Room Air Conditioners

The compressor for room units is a typical hermetically sealed air-conditioning compressor.

Where is the thermostat's sensing bulb located on a window air conditioner?

The most common refrigerant used in newly manufactured room air conditioners is ____.

Combination cooling and heating units may include electric strip heaters or be of the heat-pump style.

The evaporator of a window air conditioner should operate ____.

The most common refrigerant used in older room air conditioners is ____.

The round piece fastened to the outer tips of the condenser fan blade is called the ____.

What are some of the concerns with the heat-pump-style room air conditioner?

The addition of a window air conditioner of ____ size may overload a circuit.

The window unit must be installed in such a manner that air can circulate across the ____ and not recirculate or high head pressures will result.

An extremely dirty air filter can cause the window air conditioner to operate at low suction pressures.

Window installation of room units are for either double-hung or ____________________ windows.

The term used to reference the assembly of all the components that make up the air-conditioning system is ____.

The thermostat for room units is usually mounted with the control knob in the control center and the remote bulb in the vicinity of the return air.