HVAC
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Technology

HVAC Basics: Residential Air Conditioning
[DVD 1019]     2008    Shopware
4 3/4" DVD     Color    1 videodisc, 21 mins.
Summarizes the ins and outs of operation and service. Typical systems for cooling or dehumidifying residential environments are covered. Details on condensing units and their components—including the condenser coil, compressor, motor, fan, and accumulator—are illustrated along with typical outside housings and insulation materials. The three methods of heat transfer—conduction, convection, and radiation—are outlined, along with the difference between high side and low side pressure systems. The refrigeration cycle is demonstrated, as are different types of compressors, such as scroll, reciprocating, and piston. Heat pumps, electrical controls, evaporators, and sight glasses are explained. Correlates to all National CTE Organizational Standards (including the provisions of the Perkins Act).
Subjects - HVAC

HVAC Basics: Residential Heating and Ventilation
[DVD 1020]     2008   Shopware
4 3/4" DVD     Color   1 videodisc, 24 mins.
Illustrates several different types of heating systems, including forced-air gas furnaces, high-efficiency furnaces, and hot air systems. Different types of ignition and fuels are covered, along with the major elements of gas furnaces, including solenoids, burners, manifolds, heat exchangers, and more. Air flow components such as supply and return plenums, air filters, and split capacitor motors are also explained, in addition to thermostats, pilot safety switches, and gas valves. Viewers will get a look at the automated service centers at the heart of many modern large office buildings, which maintain climate control using high-tech sensors and adjustment systems. Correlates to all National CTE Organizational Standards (including the provisions of the Perkins Act).
Subjects - HVAC


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