GLOSSARY

AHRI
Air Conditioning, Heating, and Refrigeration Institute.

Air Handler
Part of an HVAC system responsible for regulating and circulating air.

Central Air-Conditioning
System in which air is cooled at a central location and distributed by one or more fans and ductwork.

Coil
One of the main parts of an HVAC system, there are typically two in a system, a condenser coil and an evaporator coil.

Coil Coating
The protective layer is applied to protect against corrosion and any harmful elements.

Compressor
The part of an outdoor air conditioner or heat pump that compresses and pumps refrigerant to cool indoor air.

Condenser Coil
Located on the outdoor part of the HVAC machine and responsible for the heat transfer.

Energy Efficiency Ratio (EER)
The ratio of cooling capacity to the power input (in watts). The higher the EER rating, the more efficient the air conditioner.

Evaporator Coil
Located indoors, it is the part of the HVAC that absorbs the heat from inside the environment.

Fan Coil Unit
A device that uses a coil and a fan to heat or cool a room without connecting to ductwork.

Heat Exchanger
A heating component that is located in the furnace and transfers heat to the surrounding air, which is then pumped throughout the home.

Heat Pump
HVAC unit that heats or cools by moving heat.

HVAC
Heating, Ventilation and Air Conditioning.

Indoor Coil
Also known as an Evaporator Coil.

ISO 9000
A family of international standards for quality management and assurance.

OEM
OEM refers to the Original Equipment Manufacturer—the original company that makes and sells a specific product; such as Trane, Carrier Lennox, York, Aaon, Munters among others.

Outdoor Coil
Also known as Condenser Coil.

Packaged Units
Heating and cooling systems are contained in one outdoor unit.

Refrigerant
A chemical that produces a cooling effect while expanding or vaporizing.

Split System HVAC
A heating and cooling system that includes an indoor unit, outdoor unit, and a thermostat.