Micro Switch And Limit Switch In Air Conditioning System
Microswitches are commonly used to detect paper jams in printers, vending machines, level and safety devices in lifts, and door interlocks in microwave ovens. They can also be used to know whether the valve is closed or open, such as a tamper switch on a fire sprinkler system. They are very widely used components and can be found in automobiles, industrial equipment, machinery, and household appliances. They are usually used to control circuits but can directly control lights, solenoids, small motors, or other components.
A dedicated low-force micro switch is used to sense coins into the vending machine, or a damper can be installed so that the microswitch can detect airflow. Some mechanisms can directly operate microswitches or be packaged as part of a temperature, flow, or pressure switch. The micro switch can be used as a timer mechanism combined with a motor-driven cam. Or a micro switch used with rollers, plungers, or levers can constitute a limit switch, which can then be used to control electric machinery or machine tools.
How does the limit switch work in the air conditioning system?
Limit switches are used in various equipment for commercial and residential applications. There are two primary purposes to keep in mind when creating limit switches. They control the circuit by activating or deactivating it and starting or stopping specific electrical pulses. One of the most straightforward examples is a light that turns on automatically when the refrigerator door is opened and turns off again once the door is closed. AC limit switches are ubiquitous. The primary example is the link between the air handler blower and the thermostat.
The AC limit switch will be toggled when the thermostat reaches the preset room temperature. This prevents the air conditioning system from generating more cold air. The additional AC limit switch will turn off the air handling unit simultaneously so that the warmer air that has not been cooled will no longer be blown out through the vent. When the temperature read by the thermostat rises again, both air-conditioning limit switches will be turned on again, thereby generating cold air and blowing it through the ventilation holes for distribution. When the limit switch is damaged, it will shorten the AC cycle, turn off the air conditioning system too quickly, or not turn off the AC power. The AC limit switch is stuck, or the wiring is short-circuited. In any case, contact a trained AC company for repairs.
Unionwell: A professional micro switch manufacturer
Huizhou Unionwell Sensing & Control Electronics Co., Ltd. is committed to producing waterproof micro switches, sealed micro switches, auto micro switches, primary micro switches, and limit switches.
As a professional micro switch factory in China, we have established long-term cooperative relationships with world-renowned automotive and home appliance customers.
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