HVAC Diagram

HVAC diagram

Gas Forced Air Furnace Equipment

  • Return Air Duct (from rooms): A duct carrying air from a conditioned space to the mixing air duct or plenum unit.
  • Filter: A porous device for removing impurities or solid particles from the air that passes through it.
  • Blower: a mechanical device that creates a current of air. See fan also.
  • Air Handling Unit (AHU): a device used to condition and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. An air handler is usually a large metal box containing a blower, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers usually connect to a ductwork ventilation system that distributes the conditioned air through the building and returns it to the AHU.
  • Air Supply Duct (to rooms): A duct that carries conditioned air from air supply units to room diffusers or grilles.

Air Conditioner Equipment: The outdoor condenser unit is not the only component of your A/C. Inside your home you will find:

  • Compressor: A machine used to supply air or other gas at increased pressure.
  • Condenser Coil: In addition to heating up or cooling down fluids in just a single phase, heat exchangers can be used either to heat a liquid to evaporate (or boil) it or used as condensers to cool a vapor and condense it to a liquid.
  • Fan: a mechanical device that creates a current of air. See blower also.
  • Refrigerant Filled Tubing
  • Evaporator Coil

For a full HVAC glossary visit WBDG