Danfoss Compressor SZ120A3PAT

07/16/2020

Working principle of scroll compressor

1. The pressure of the scroll compressor is generated due to the interaction between the scroll disks that make planetary motion. When one of the scroll disks makes planetary motion, the gas enters from the outer opening.

07/13/2020

Identify the authenticity of Danfoss compressors solenoid valves expansion valves and filters

HVAC】Innovative products and series of Danfoss commercial compressors To date, Danfoss has provided more than 100,000 air-conditioning large scroll compressors to the Chinese air-conditioning market.

07/01/2020

Several advantages of screw compressor

Several advantages of screw compressor In the cold storage installation, the choice of refrigerator is to choose to use screw machine or piston machine. The use of screw machines is gradually surpassing the share of the original piston machines.

08/04/2020

Types of surface coolers and maintenance methods

There are two types of surface coolers: one is the heat exchanger of the fan coil, its performance determines the cooling (heat) capacity of the fan coil and the influence on the air volume.

06/14/2020

Ways to reduce inverter harmonics

Insulation, shielding and grounding of the inverter: the power supply of the inverter system is independent of the power supply of other equipment. Or install an isolation transformer on the input side of the inverter and other electrical equipment. Or pu器2䀀
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07/24/2020

Comparison of working principle of single screw and twin screw refrigeration compressors

Twin-screw refrigeration compressor is an energy-adjustable oil-injected compressor. Its three continuous processes of inhalation, compression and exhaust are realized by periodic volume changes when a pair of intermeshing female and male rotors rotate.

07/14/2020

What to do if the refrigerator doesn't cool

What to do if the refrigerator doesn't cool　Refrigerator freezes but does not refrigerate means that the refrigerator should not freeze inside, but it freezes inside. And the cooling effect is poor and the power consumption is increased. Today PChouse and everyone will take a look at what to do when the refrigerator freezes and how to deal with the refrigerator not cooling.

08/20/2020

What is the difference between fresh-keeping storage, cold storage, freezer and controlled atmosphere storage

1. Fresh-keeping warehouse The storage temperature of the fresh-keeping warehouse is generally 0℃~5℃, which is mainly used to keep fresh, that is, to maintain the original quality and freshness of agricultural products for a long time,

06/14/2020

How to change the refrigeration oil of the compressor

The replacement of refrigeration compressor refrigeration oil is a relatively common item in refrigeration equipment maintenance projects, so many refrigeration workers hope that they can do this by themselves, but they are struggling to find a relativelyﰸ2䀀
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06/29/2020

Suggestions for troubleshooting of compressor with liquid start