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  2. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

  3. Pressure switch - Wikipedia

    en.wikipedia.org/wiki/Pressure_switch

    A pressure switch is a form of switch that operates an electrical contact when a certain set fluid pressure has been reached on its input. The switch may be designed to make contact either on pressure rise or on pressure fall. Pressure switches are widely used in industry to automatically supervise and control systems that use pressurized fluids.

  4. Condensate pump - Wikipedia

    en.wikipedia.org/wiki/Condensate_pump

    Large industrial pumps may also serve as the feedwater pump for returning the condensate under pressure to a boiler. Condensate pumps usually run intermittently and have a tank in which condensate can accumulate. Eventually, the accumulating liquid raises a float switch energizing the pump. The pump then runs until the level of liquid in the ...

  5. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    A refrigerant is employed either in a heat pump system in which a compressor is used to drive thermodynamic refrigeration cycle, or in a free cooling system that uses pumps to circulate a cool refrigerant (typically water or a glycol mix). It is imperative that the air conditioning horsepower is sufficient for the area being cooled.

  6. College Football Playoff format changes: What's potentially ...

    www.aol.com/sports/college-football-playoff...

    The change to the 4-4-2-2-1+1 model could come with the SEC moving to a ninth league game and, then, possibly striking a non-conference scheduling agreement with the Big Ten.

  7. Pressure regulator - Wikipedia

    en.wikipedia.org/wiki/Pressure_regulator

    Maintain upstream pressure control in analytical or process systems [1] Protect sensitive equipment from overpressure damage [1] Reduce the pressure difference over a component which is not tolerant of large pressure differences. [10] Gas sales lines [11] Production vessels (e.g., Separators, heater treaters or free water knockouts) [11]

  8. A Month of Mediterranean Diet Dinner Recipes to Eat in January

    www.aol.com/month-mediterranean-diet-dinner...

    Yogurt offers probiotics and enhances the flavor, while black lentils offer fiber that helps maintain a balanced and healthy digestive system. View Recipe Creamy Spinach & Artichoke Chicken Skillet

  9. Judge in Trump's hush money case won't toss guilty verdict - AOL

    www.aol.com/judge-trumps-hush-money-case...

    (The Center Square) – The New York judge overseeing President-elect Donald Trump's hush money case said Monday he won't toss Trump's conviction. Judge Juan Merchan denied Trump's motion to ...

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