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  2. Control system - Wikipedia

    en.wikipedia.org/wiki/Control_system

    The control action is the switching on/off of the boiler, but the controlled variable should be the building temperature, but is not because this is open-loop control of the boiler, which does not give closed-loop control of the temperature. In closed loop control, the control action from the controller is dependent on the process output.

  3. OpenTherm - Wikipedia

    en.wikipedia.org/wiki/OpenTherm

    OpenTherm (OT) is a standard communications protocol used in central heating systems for the communication between central heating appliances and a thermostatic controllers. [1] As a standard, OpenTherm is independent of any single manufacturer. A controller from one manufacturer can in principle be used to control a boiler from another ...

  4. 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.

  5. Honeywell - Wikipedia

    en.wikipedia.org/wiki/Honeywell

    Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina.It primarily operates in four areas of business: aerospace, building automation, industrial automation, and energy and sustainability solutions (ESS). [2]

  6. Heating, ventilation, and air conditioning - Wikipedia

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

    Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality .

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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!

  8. 9 Mistakes You Should Never Make With A Slow Cooker - AOL

    www.aol.com/9-mistakes-never-slow-cooker...

    Maybe we all watched a little too much This Is Us and are still mourning the loss of Jack Pearson, or maybe a kitchen mishap as a child has left us wary of slow cookers. Whatever the case may be ...

  9. Owner's manual - Wikipedia

    en.wikipedia.org/wiki/Owner's_manual

    2007 Toyota Yaris hatchback owner's manual 1919 Ford Motor Company car and truck operating manual. An owner's manual (also called an instruction manual or a user guide) is an instructional book or booklet that is supplied with almost all technologically advanced consumer products such as vehicles, home appliances and computer peripherals.

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