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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.
Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. For example, a thermostat is a temperature-operated switch used to control a heating process.
Unlike a thermal fuse, a thermal switch is usually reusable and is therefore suited to protecting against temporary situations which are common and user-correctable. Thermal switches are used in power supplies in case of overload, and also as thermostats, and overheat protection in some heating and cooling systems. They are found in virtually ...
This is what older style thermostats used to turn a heater or air conditioner on or off. The mercury displacement switch uses a 'plunger' that dips into a pool of mercury, raising the level in the container to contact at least one electrode. This design is used in relays in industrial applications that need to switch high current loads frequently.
thermostat A thermostat is a system that monitors and regulates a heating or cooling system. It can be used to set the desired temperature at which it keeps the environment either heated or cooled. two-stage (cooling and heating) A two-stage air conditioner is designed to operate on high and low settings during different weather conditions and ...
Consider investing in a "smart" thermostat. Because many can connect to smartphones via mobile apps, smart thermostats allow homeowners to program their thermostats while they're away or even set ...
A smart thermostat can make it easy to maintain the temperature of your home, set a schedule, and get real-time information on your energy use. An electromechanical system has a sliding bar or ...
The safety interlock switch is at the bottom left. In the lower middle is the capacitor . 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.
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