Mitsubishi Circuit Breaker NF50-FAU 3P 20A

06/14/2020

How to judge the quality of single-phase and three-phase refrigeration compressors

A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. Then, after-sales maintenance sometimes doubts that the compressor is malfunctioning, how to check and judge at this time器2䀀
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08/20/2020

Air-conditioning repair book Three nirvana tricks that can't be charged by the regular army

Summer is the peak season for air-conditioning to be turned on. After frequent use, the air-conditioning in some consumers’ homes will fail, and when a small partner is in a hurry, they will “see the doctor in a hurry”.

06/14/2020

[Maintenance case] BMW 520Li compressor clutch failure

[Maintenance case] BMW 520Li compressor clutch failure Model: F18. Driving mileage: 3000km. Fault phenomenon: The user reports that the vehicle's air conditioning system is faulty. Sometimes, the cooling effect of the air conditioner suddenly fails器2䀀
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07/26/2020

The return pipe and compressor of cold storage are frosted. Why？

Yesterday, the reason for the frosting of the air-conditioning compressor and the compressor was released. Someone left us a message. I hope we can analyze the reasons for the frosting of the return pipe of the cold storage and the compressor.<br></br>

09/10/2020

What factors affect the displacement of centrifugal compressors

1) The air filter is blocked or the resistance increases, causing the suction pressure of the compressor to decrease. When the outlet pressure is constant, the compressor pressure ratio is increased. According to the performance curve of the compressor, when the pressure ratio increases, the displacement will decrease;

08/17/2020

Air conditioning unit filter and heat exchange equipment dust and scale treatment method

Summary: Dust and fouling occur on filters and heat exchangers, which are not economical for the operation of air conditioning units and cannot guarantee normal use requirements.

08/16/2020

What is the structure of the fan coil

The fan coils we usually touch mainly include horizontal concealed fan coils, horizontal surface mounted fan coils, vertical surface mounted fan coils, vertical concealed fan coils, and other methods.

09/05/2020

These three factors affect the drying effect of the adsorption dryer

Both compressed air refrigeration dryers (hereinafter referred to as cold dryers) or compressed air adsorption dryers (hereinafter referred to as suction dryers) are compressed air post-processing equipment

09/05/2020

What is the difference between single screw compressor and twin screw compressor

Single-screw and twin-screw manufacturing process of twin-screw is more complicated than single-screw in terms of structure, and the difference in service life and working efficiency is not very big,

06/29/2020

Compression ratio of American Copeland compressor