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  2. Auto-defrost - Wikipedia

    en.wikipedia.org/wiki/Auto-defrost

    "Frost-Free" refrigerator/freezer units usually use a heating element to defrost their evaporators, a pan to collect and evaporate water from the frost that melts from the cold plate and/or evaporator coil, a timer which turns off the compressor and turns on the defrost element usually from once to 4 times a day for periods usually ranging from ...

  3. Freeze stat - Wikipedia

    en.wikipedia.org/wiki/Freeze_stat

    Air coil freeze stat. A freeze stat is a temperature sensing device for HVAC that monitors a heat exchanger to prevent its coils from freezing.Freeze stats can be used on both refrigerant-to-air, and refrigerant-to-liquid type heat exchangers and serve different purposes with similar goals for each.

  4. Liebherr - Wikipedia

    en.wikipedia.org/wiki/Liebherr

    Liebherr is a German-Swiss multinational equipment manufacturer based in Bulle, Switzerland, with its main production facilities and origins in Germany.. Liebherr consists of over 130 companies organized into 11 divisions: earthmoving, mining, mobile cranes, tower cranes, concrete technology, maritime cranes, aerospace and transportation systems, machine tools and automation systems, domestic ...

  5. Liebherr T 282 series - Wikipedia

    en.wikipedia.org/wiki/Liebherr_T_282_series

    Liebherr introduced the T 282 B at the Bauma trade fair in Munich, Germany, on March 29, 2004. [1] The T 282 B is the successor to the T 282, designed in Newport News, a 360 short tons (327 t) payload capacity, 2,000 kW (2,700 hp) diesel/AC electric drive haul truck introduced in 1998. [ 2 ]

  6. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    A thermostat exerts control by switching heating or cooling devices on or off, or by regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. A thermostat can often be the main control unit for a heating or cooling system, in applications ranging from ambient air control to automotive coolant control.

  7. Refrigerator - Wikipedia

    en.wikipedia.org/wiki/Refrigerator

    Temperature settings for refrigerator and freezer compartments are often given arbitrary numbers by manufacturers (for example, 1 through 9, warmest to coldest), but generally 3 to 5 °C (37 to 41 °F) [3] is ideal for the refrigerator compartment and −18 °C (0 °F) for the freezer. Some refrigerators must be within certain external ...

  8. Nest Thermostat - Wikipedia

    en.wikipedia.org/wiki/Nest_Thermostat

    12-stage cooling 1–3-stage heating Forced air Radiant Heat pump Oil Gas Electric Hybrid systems Humidistat 1st 1.10 Q4 2011 3.27" 1.76" Yes Yes No Yes No Yes 1-stage only 12-stage only Yes Yes Yes Yes Yes Yes No No 1st 1.12 Q1 2012 3.27" 1.76" Yes Yes No Yes No Yes 1-stage only 12-stage only Yes Yes Yes Yes Yes Yes No No 2nd 2.6 Q3 ...

  9. Programmable thermostat - Wikipedia

    en.wikipedia.org/wiki/Programmable_thermostat

    [1] A separate, continuous source of 24 volts alternating current (24 VAC) is provided to the thermostat. [2] A rechargeable battery in the thermostat operates the clock. This battery charges when the thermostat is not calling for heat and 24 VAC is available to it. It discharges to operate the clock when the thermostat is set for heating or ...