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Terms & Vocabulary |
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We've compiled a short list of the most common terms to know
when talking to your Trane dealer. Click on a term to get its definition.
For a more complete listing of terms, please visit our Glossary or Frequently Asked
Questions.
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Air Handler |
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An air moving unit. Residential air handlers include a blower,
a coil, an expansion device, a heater rack and filter. Heaters for air handlers
are sold as accessories. In some models heaters are factory installed.
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BTU |
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British thermal unit; the amount of heat required to raise or
lower the temperature of one pound of water one degree Fahrenheit. The heat extracted
from your home by an air conditioner is measured in BTUs.
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Compressor |
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This is the heart of an air conditioner or heat pump system.
It is part of the outdoor unit and pumps refrigerant in order to meet the cooling
requirements of the system.
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Dehumidifier |
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An air cooler that removes moisture from the air.
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EER |
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Energy Efficiency Ratio is a steady state yearly operation. This
is used more by utilities than for homeowner comparisons. SEER is a seasonal measure
most often used for residential ratings.
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Flue |
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Any vent or passageway that carries the products of combustion
from a furnace.
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Heat Loss |
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The rate of heat transfer from a heated space to the outdoors.
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Heat Pump |
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An outdoor unit that cools in the summer and heats in the winter
using only electricity.
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Humidistat |
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A humidity-sensing control that cycles the humidifier on and
off.
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HVAC |
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Abbreviation for Heating, Ventilating and Air Conditioning.
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Packaged Unit |
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A heating and/or air conditioning system contained in a single
cabinet outside the home. unit. A packaged unit is typically installed beside or
on the roof.
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SEER |
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Seasonal Energy Efficiency Ratio; a measure of cooling efficiency
for air conditioners and heat pumps. The higher the SEER, the more energy efficient
the unit.
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Self-contained System |
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A heating or air conditioning system with no external components.
Also known as a packaged unit or a packaged terminal air conditioner (PTAC)
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Split System |
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The combination of an outdoor unit (air conditioner or heat pump)
with an indoor unit (furnace or air handler). Split systems must be matched for
optimum efficiency. This is the most common type system in the U.S.A.
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Thermostat (aka Comfort Control) |
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A thermostat consists of a series of sensors and relays that
monitor and control the functions of a heating and air conditioning system to a
pre-set temperature.
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Zone System |
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A method of dividing a home into different comfort zones so each
zone can be independently controlled depending on use and need; an air conditioning
system capable of maintaining varying conditions for various rooms or zones.
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