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  2. Infiltration (HVAC) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(HVAC)

    Smoke candles and blower-door tests can help identify less-than-obvious leaks. The Weatherization article describes methods for energy savings further. If infiltration is reduced below 0.35 ACH, it is recommended that mechanical ventilation (typically an exhaust fan or heat recovery ventilation ) be implemented.

  3. Crankcase heater - Wikipedia

    en.wikipedia.org/wiki/Crankcase_heater

    The crankcase heater is normally on all the time, even when the unit is not running, though temperature sensors and set points may turn it off when not needed. A crankcase heater's sole purpose is to prevent refrigerant migration and mixing with crankcase oil when the unit is off, and to prevent condensation of refrigerant in the crankcase of a ...

  4. Goodman Global - Wikipedia

    en.wikipedia.org/wiki/Goodman_Global

    In October 2016, operations at the new facility ramped up and the first Goodman air conditioner and gas furnace units came off the line. [12] In 2017, the construction of the huge facility concluded to consolidate Goodman’s HVAC manufacturing, engineering, logistics, and customer support under one, very large 4.1 million square foot roof. [13]

  5. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible.A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Condensate pump - Wikipedia

    en.wikipedia.org/wiki/Condensate_pump

    This stage may switch off the HVAC equipment (preventing the production of further condensate), trigger an alarm, or both. Some systems may include two pumps to empty the tank. In this case, the two pumps often alternate operation, and a two-stage switch serves to energize the on-duty pump at the first stage and then energize the remaining pump ...

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