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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. How homeowners can prevent pipes from freezing during winter

    www.aol.com/weather/homeowners-prevent-pipes...

    If a faucet or pipe ends up freezing inside the house, it can be thawed by using an electric hair dryer, wrapping an electric heat pad around the pipe or by soaking towels in hot water and ...

  4. How to Fix Your Frozen Pipes, According to Experts - AOL

    www.aol.com/lifestyle/keep-pipes-freezing-winter...

    Experts share how to prevent your pipes from freezing this winter ahead of freezing temps and holiday travel plans, as well as what to do to thaw frozen pipes.

  5. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]

  6. Air source heat pump - Wikipedia

    en.wikipedia.org/wiki/Air_source_heat_pump

    An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...

  7. Freezing air temperature - Wikipedia

    en.wikipedia.org/wiki/Freezing_air_temperature

    A temperature at or below freezing is not absolutely necessary to get ground frost or hoar frost; they can form even if air temperature is marginally above freezing point if the sky is clear. This is because the ground loses heat due to radiation. It radiates its heat to the sky/space.

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