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AFUE: Annual Fuel Utilization Efficiency. Indicated as a percentage. The furnace...(Learn More)
AIR HANDLER: The indoor unit on a heat pump system that contains the blower, evaporator and the auxiliary heat.
ARI: Air-Conditioning and Refrigeration Institute is a non-profit, voluntary organization comprised of heating, air conditioning and refrigeration manufacturers... (Learn More)
BLOWER: HVAC blower motors move the air through the system. The blower motor is sized based on the amount of air flow necessary for the system. (See Photo)
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BTU: British Thermal Unit, is the measure of heat given off when fuel is combusted. Used for both heating and cooling. One BTU is the equivalent of the heat given off by one kitchen match.
BURNERS: furnace burner is the point in a furnace where a mixture of air and fuel is burned to produce heat. There are several different types of furnaces... (Learn More)
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CAPACITOR: An electrical device characterized by its capacity to store an electric charge. There are two basic types of motor capacitors most commonly used in... (Learn More)
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CIRCUIT / CONTROL BOARD: The brain of the furnace. The board is made up of resistors, fuses, and electrical circuits. It controls all the electrical aspects of the system. (See photo)
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CO2 / CO2 DETECTOR: Carbon monoxide is an odorless, tasteless, invisible gas. Carbon monoxide is present in low levels in the air. In the home, it is formed from... (Learn More)
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COMPRESSOR: A scroll compressor uses two interleaved scrolls to pump, compress, or pressurize fluids such as liquids and gases. The vane geometry may be... (Learn More)
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CONDENSER COIL: The compressor needs to create a lot of force because the condenser is a pressurized coil. The refrigerant is compressed and packed tightly... (Learn More)
CONDENSER FAN: The condenser fan motor is responsible for pulling air through coils of the condenser. The are also call air conditioner fan motor or heat pump fan motor but... (Learn More)
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CONTACTOR: A contactor or relay is an electrical device that takes a control signal usually 12 volts DC, 24, 120, 208-230 volts ac and creates a magnetic field to pull in a set of... (Learn More)
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DEHUMIDIFIER: Installed as part of your home's heating and cooling system, A central dehumidifier pulls air from every room in your home through the return ducts. (Learn More)
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EMERGENCY HEAT / AUX. HEAT: The balance point (when it can no longer efficiently transfer heat from the outside air) of an air source heat pump, is usually about 35 degrees. (Learn More)
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EVAPORATOR COIL: Part of a split system air conditioner or heat pump located indoors. The evaporator coil cools and dehumidifies the air by converting liquid refrigerant into... (Learn More)
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EXPANSION VALVE: A variable metering device that varies refrigerant flow based on cooling demand. As demand increases, the valve opens wider to permit more... (Learn More)
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FILTER: The main function of an air filter is to keep the air that is being circulated in your home, free from pollutants. There are the standards air filters, the pleated filters,... (Learn More)
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FILTER DRIER: The filter-drier is an accessory that performs the functions of filtering out particles and removing and holding moisture to prevent it from circulating through the system. (See Photo)
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FLUE: A vent that carries the products of combustion from a furnace. (See Photo)
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GAS VALVE: A valve that controls fuel flow to the burner in a gas-fired furnace or heater. (See Photo)
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HEAT EXCHANGER: The heat exchanger on a furnace is the metal that separates the fire from the air stream. A crack in the heat exchanger is that it can let combustion... (Learn More)
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HSPF: The Heating Seasonal Performance Factor is a measure of heating efficiency of a heat pump.
HUMIDIFIER: A Whole-House Humidifier is installed directly to your central new or existing heating and cooling system. Humidity is introduced into your home’s air in the... (Learn More)
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LINE SETS: The copper tube that runs from the evaporator coil to the outdoor unit that refrigerant travels through. (See Photo)
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REFRIGERANT: absorbs heat in evaporator by change of state from a liquid to a gas, and releases its heat in a condenser as the substance returns from... (Learn More)
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REVERSING VALVE: A reversing valve is a component in a heat pump, that changes the direction of refrigerant flow. By reversing the flow of refrigerant... (Learn More)
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SEER: The Seasonal Energy Efficiency Ratio is a measure of the cooling efficiency of a air conditioner or heat pump.
THERMOSTAT: a device for regulating the temperature of a system so that the system's temperature is maintained near a desired set point temperature. (See Photos)
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UV LIGHT / GERMICIDAL LIGHT: UV lights are mounted inside your system, near the cooling coil, where fungus and microbes may grow and pollutants can build up. (Learn More)
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ZONE SYSTEMS: Electronic zone damper systems allow a single hvac system to be zoned for different areas of the home. Each zone has it’s own thermostat and... (Learn More)
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