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NATE
Fraser-Johnston® encourages
professionalism through North American Technician
Excellence, Inc.(NATE). NATE is the leading
certification program for technicians in the heating,
ventilation, air-conditioning and refrigeration (HVAC/R)
industry, and is the only test supported by the entire
industry.
ENERGY STAR
Earning the ENERGY
STAR® means products meet strict energy efficiency
guidelines set by the U.S. Environmental Protection
Agency and the Department of Energy. When compared to
standard models, ENERGY STAR® products are between 15
and 25% more efficient. This model meets ENERGY STAR®
requirements for energy efficiency.
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Scroll down this page to find definitions of some of
the most common terminology used when referring to home
comfort systems, or click on any of the links throughout the
site to return to this page.
- AFUE %:
-
Annual Fuel Utilization Efficiency. A measure of a
furnace's heating efficiency. The higher the AFUE%,
the more efficient the product. The government's
established minimum AFUE rating for furnaces is 78%.
- Air Handler:
-
An outdoor temperature, usually between 30° F and
45° F, at which a heat pump's output exactly equals
the heating needs of the home. Below the balance
point, supplementary electric resistance heat is
needed to maintain indoor comfort.
- BTU:
-
British Thermal Unit. The amount of heat required to
raise the temperature of one pound of water (about
one pint) by one degree F.
- Compressor:
-
The pump that moves the refrigerant from the indoor
evaporator coil to the outdoor condensing unit and
back to the evaporator. The compressor functions as
the heart of the system, because it circulates the
refrigerant in a loop.
- Condensing/Outdoor Unit:
-
The portion of a central air conditioning system
that is located outside the home and functions as a
heat transfer point for collecting heat from and
dispelling heat to the outside air.
- Air Conditioner:
-
Assembly of equipment for the simultaneous control
of air temperature, relative humidity, purity, and
motion.
- Condenser Coil:
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A network of refrigerant-filled tubes where heat
leaves the hot refrigerant vapor. The vapor then
condenses into a liquid capable of absorbing more
heat.
- Evaporator Coil:
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The portion of a heat pump or central air conditioning
system that is located in the home and functions as the
heat transfer point for warming or cooling indoor air.
- Heat Pump:
-
An air conditioner that contains a valve that allows
it to alternate between heating and cooling.
- Heat Source:
-
A body of air or liquid from which heat is
collected. With Coleman Heating & Air
Conditioning heat pumps, the air outside the
home is used as the heat source during the
heating cycle.
- HSPF:
-
Heating Seasonal Performance Factor. A measure of a
heat pump's heating efficiency. The higher the HSPF,
the more efficient the product. There is no
government established minimum HSPF rating for heat
pumps.
- SEER:
-
Seasonal Energy Efficiency Ratio. A measure of an
air conditioner's cooling efficiency. The higher the
SEER, the more efficient the product. The
government's established minimum SEER rating for air
conditioners manufactured after January 2006 is 13.
- Single Package:
-
A year-round heating and air conditioning system
that has all of the components completely encased in
one unit outside the home.
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