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  2. Warren S. Johnson - Wikipedia

    en.wikipedia.org/wiki/Warren_S._Johnson

    Johnson’s most notable contribution to temperature control was the automatic multi-zone temperature control system – a pneumatic system that used a bi-metal thermostat to control air flow through a nozzle and thereby operate a pilot regulator.

  3. Air-operated valve - Wikipedia

    en.wikipedia.org/wiki/Air-operated_valve

    Modulating control valves each with 4-20mA I to P converter linked to pneumatic a valve positioner controlling a diaphragm actuator. An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to a solenoid.

  4. File:Control Systems.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Control_Systems.pdf

    2006-10-30 17:35 Whiteknight 1275×1650× (2082680 bytes) This is the PDF version of the [[Control Systems]] book. It has been produced by using Adobe PDF Professional, and converting the printable version of the book at [[Control Systems/Print version]]. This file has not been edited in anyway to differ from th

  5. Heating, ventilation, and air conditioning - Wikipedia

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

    For example, a conventional heat pump system used to heat a building in Montana's −57 °C (−70 °F) low temperature or cool a building in the highest temperature ever recorded in the US—57 °C (134 °F) in Death Valley, California, in 1913 would require a large amount of energy due to the extreme difference between inside and outside air ...

  6. Federal Aviation Regulations - Wikipedia

    en.wikipedia.org/wiki/Federal_Aviation_Regulations

    Title 14 CFR – Aeronautics and Space is one of the fifty titles that make up the United States Code of Federal Regulations (CFR). Title 14 is the principal set of rules and regulations (sometimes called administrative law) issued by the Department of Transportation and Federal Aviation Administration, federal agencies of the United States which oversee Aeronautics and Space.

  7. Pneumatic circuit - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_circuit

    A pneumatic circuit is an interconnected set of components that convert compressed gas (usually air) into mechanical work. In the normal sense of the term, the circuit must include a compressor or compressor-fed tank.

  8. Pneumatics - Wikipedia

    en.wikipedia.org/wiki/Pneumatics

    Pneumatic logic is a reliable and functional control method for industrial processes. In recent years, these systems have largely been replaced by electronic control systems in new installations because of the smaller size, lower cost, greater precision, and more powerful features of digital controls.

  9. 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 ...