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A system that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle.

Located in the outdoor unit, it expels heat from the refrigerant into the outdoor air.

A device that monitors and regulates the temperature of a space by controlling HVAC functions.

A device capable of heating and cooling a space by reversing the refrigeration cycle.

The compressor raises the refrigerant's pressure and temperature, propelling it through the HVAC system.

Reduces the pressure of the refrigerant, allowing it to cool and absorb heat once it reaches the evaporator coil.

Removes excess moisture from the air to maintain comfortable humidity levels.

A chemical compound that transitions between liquid and gas states to facilitate heat absorption and release.

A space used for air distribution that can be part of the ductwork or the space above a drop ceiling.

Expels waste heat to the atmosphere by cooling a water stream to a lower temperature.

Regulates air flow in ductwork, can control the mix of fresh outdoor air with recirculated indoor air.

Reduces HVAC energy consumption by allowing for the use of outside air for cooling when appropriate.

The component that moves conditioned air throughout the ductwork of a building.

Allows for the customized temperature control of different areas (zones) in a building.

A unit of heat defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Adds moisture to the air within a building to maintain comfortable humidity levels.

A network of tubes that distributes conditioned air from the HVAC system throughout a building.

Inside the air handler, it absorbs heat from air passing over it, cooling the air indoors.

Cleans the air passing through the HVAC system by trapping dust, pollen, and other particles.

A measure of air conditioning and heat pump cooling efficiency, calculated as the ratio of cooling output to electrical energy input over a range of temperatures.

Drives the fan that circulates air through the air handler and the rest of the HVAC system.

Allow for the distribution of conditioned air to different spaces and the return of air to the HVAC system.

The process of testing and adjusting the HVAC system to deliver the right amount of air to each space.

A device that controls the volume of air flowing to a space, regulating temperature.