HVAC PACKAGE DEAL

Absorption - ️️A refrigeration cycle where input energy is heat Adiabatic - ️️without gain or loss of heat Air Conditioning - ️️controlling air temperature humidity and quality Air Cooled Condenser - ️️a heat exchanger that transfers building heat to outdoor air Air Handl...

Heat which causes a change in temperature of a substance is called - ️️sensible heat, Heat added to a substance without a rise in temperature; (example: liquid refrigerant to gas) this process la called? - ️️latent heat Heat added to the refrigerant in vapor state after the evaporation...

HVAC is an abbreviation for - ️️Heating, Ventilation, Air Conditioning, and Refrigeration Fireplaces are an inefficient way to heat a building because - ️️most of the heat goes up the chimney. Air brought into a building for the purpose of maintaining a healthy indoor environment is ca...

Matter exists in what three forms? - ️️solid, liquid, gas What is temperature measured by? Quantity or intensity - ️️Intensity Define British thermal unit (Btu) - ️️Measure of heat energy - amount of energy needed to raise 1 lb of water 1 degree F How much heat is required to ra...

Air Changes per Hour (ACH or ac/hr) - ️️the hourly ventilation rate divided by the volume of a space. for perfectly mixed air or laminar flow spaces, this is equal to the number of times that the volume the space is exchanged by mechanical and natural ventaliation Air Conditioner - ️️an a...

Heat Transfer Theory - ️️Heat moves from an area of higher temperature to an area of lower temperature Conduction - ️️Transfer of heat by particles in direct contact Convection - ️️Transfer of heat by the circulation through a liquid or gas Radiation - ️️Transfer of heat thr...

Absolute Humidity - ️️The weight of water vapor in a given amount of air space. Absolute humidity is measured by grains per cubic foot. Absolute Pressure - ️️Gauge pressure plus atmospheric pressure. Absolute Temperature - ️️Temperature measured from absolute zero. Absolute Zero...