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18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin

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Innovation, excellent and reliability are the core values of our company. These principles today much more than ever form the basis of our success as an internationally active mid-size business for Porter Cable Pressure Switch, Oil Pressure Switch, Stewart Warner Hobbs Pressure Switch, Inspired by the rapid developing market of the fast food and beverage consumables all over the world , We are looking forward to working with partners/clients to make success together.
18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin Detail:

This is an air conditioner three-state pressure switch, which includes a high and low pressure switch and a medium voltage switch. The three-state pressure switch is installed on the high-pressure pipeline of the air-conditioning system.

Low-pressure switch: When the air-conditioning system leaks or the refrigerant is low, in order to protect the compressor from damage, the control circuit of the compressor is forcibly cut off to stop the compressor.

Mid-state switch: When the condensing pressure is high, force the condensing fan to rotate at a high speed to reduce the high pressure pressure and increase the cooling effect.

High pressure switch: In order to prevent the system pressure from being too high, causing the system to explode, the compressor is forced to stop working. When the high-pressure pressure of the air conditioner is abnormally high, the high-pressure switch is opened to cut off the control circuit of the compressor, and the air-conditioning system stops working.

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The air conditioner three-state pressure switch has four lines: two are medium voltage switches, used to control the fan heating fan. The other two are low pressure and high pressure together to control the compression operation.

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As shown in the circuit diagram: after the A/C switch inputs the signal to the air conditioner panel, the air conditioner panel will output the signal to the ternary pressure switch (usually a negative signal),The ternary pressure switch detects the pressure inside the pipeline and whether the high and low pressure are normal. If it is normal, the internal switch will be turned on and send the signal to the engine computer board. The computer board controls the compressor relay to pull in and the compressor works.There is also a wire that is normally grounded. When the internal medium voltage of the three-state switch is normal, the switch is closed, and the signal is sent to the engine computer board to control the cooling fan relay to pull in.

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Product detail pictures:

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures

18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin detail pictures


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We emphasize development and introduce new products into the market every year for 18 Years Factory Universal Oil Pressure Switch - AC compressor trinary low high pressure switch with wire – Anxin , The product will supply to all over the world, such as: Pakistan, India, Bolivia, Our products are widely recognized and trusted by users and can meet continuously changing of economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!
  • After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
    5 Stars By Ray from Malta - 2017.05.02 11:33
    It is really lucky to meet such a good supplier, this is our most satisfied cooperation, I think we will work again!
    5 Stars By Eden from UK - 2017.12.02 14:11
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