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  2. Freeze stat - Wikipedia

    en.wikipedia.org/wiki/Freeze_stat

    In practical situations, when an air coil freeze stat is not used, bypassed, or defeated, the air coil can freeze, and this causes a lack of air flow to the facility. [3] By contrast, when a water coil freeze stat is not used, the water coil can get so cold that it can freeze the cooling liquid in the exchanger and burst the exchanger. [5]

  3. Cooling capacity - Wikipedia

    en.wikipedia.org/wiki/Cooling_capacity

    The SI unit is watt (W). Another unit common in non-metric regions or sectors is the ton of refrigeration, which describes the amount of water at freezing temperature that can be frozen in 24 hours, equivalent to 3.5 kW or 12,000 BTU/h. [1] [2] [3]

  4. Crankcase heater - Wikipedia

    en.wikipedia.org/wiki/Crankcase_heater

    A crankcase heater is an electrical component in a compressor in an air-conditioning system, heat pump system, or chiller system. 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.

  5. Should You Cover Your AC Unit In The Winter? Experts Explain

    www.aol.com/cover-ac-unit-winter-experts...

    Once the colder months start to make an appearance, so does your home's heating system. The AC unit temporarily becomes thing of the past but that doesn't mean it's long forgotten.

  6. Freeze warnings issued for millions with the coldest ...

    www.aol.com/news/coldest-air-months-way-millions...

    A dramatic pattern shift is bringing the chilliest air since spring to millions of people in the central and eastern United States, making areas that have struggled so far to shed lingering warmth ...

  7. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Air conditioners, which typically use vapor-compression refrigeration, range in size from small units used in vehicles or single rooms to massive units that can cool large buildings. [6] Air source heat pumps , which can be used for heating as well as cooling , are becoming increasingly common in cooler climates.

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