What Is a Zone Valve?


Quick Answer

A zone valve regulates water flow through closed heating and cooling systems. These systems are divided into separate zones throughout a house where temperatures may be individually controlled due to the valves mounted on each zone's piping.

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Full Answer

Zone valves supply heat if they are turned on in specific areas and are often electrically powered with a motor connected to a rotary switch. They are connected to thermostats located within the individual zones and begin to operate once the thermostats signal a need for heat. The valves may malfunction if the thermostats are not working properly and must operate with their covers on to accurately regulate the temperature.

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