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