HVAC Mod 1- Intro to HVAC

In a typical system, in which component would the refrigerant change from a liquid to a vapor?

• Condenser
• Receiver dryer
• Evaporator
• Compressor

Which component raises the pressure of the vapor?

• Compressor

• Condenser

• Evaporator

• Thermal Xpansion Valve

Where does the low pressure liquid become a low pressure vapor?

• Evaporator

• Condenser

• TX valve

• Compressor

In what state is the refrigerant when it exits the condenser?

• High pressure gas

• Low pressure gas

• High pressure liquid

• Low pressure liquid

The main components of the Refrigeration system are

• Thermistor, condenser, flow control and an evaporator.

• Fan blower, condenser, flow control and an evaporator.

• Compressor, condenser, metering device, evaporator.

• Drainage, condenser, flow control and an evaporator.

Where would you expect to find a high pressure liquid within an AC system?

• Between the Compressor and the Metering Device

• Between the Metering Device and the Evaporator

• Between the compressor and the condenser

• Between the Condenser and the Metering Device.

Heat will always travel:

• in a straight line

• from top to bottom

• from hot to cold

• from cold to hot

The proper name of the Valve Core:

• Poppet Valve

• Piston Valve

• Schrader Valve

• Stem Fitting

Compressor not engaging. Gauges showing pressure at 160 psi on both High and Low side. Fuses check out as good. What should be done next?

• Check Power and ground at Compressor

• Recover

• Charge .5 pound

• Charge 1.5 pounds

• Vaccum and Leak Test

Systems that use water or steam as a source of heating are known as____

• Natural Gas

• Coal

• Hydronic

• Split