Copeland Compressor 4DA3A100E-FSD

08/24/2020

What are the common methods for refrigerant leak detection

Visual leak detection 　　 When oil stains are found somewhere in the system, this may be a leakage point.

07/21/2020

How to protect the refrigeration compressor, you must master the following knowledge!

When the compressor is running, some abnormal conditions may occur, such as: exhaust pressure is too high, suction pressure is too low, oil pressure is insufficient, motor is overheated, excess liquid enters the cylinder, etc. In the event of an abnormal situation, the compressor will be damaged if there is no protective measure.

09/11/2020

Hanbell screw compressor oil replacement operation specification

Maintenance and operation instructions for the refrigerating oil of the screw refrigerant compressor of Hanbell 1. The role of lubricating oil:

03/01/2021

Basic principle and optimization algorithm of BLDC

Brushless direct current motor (BLDCM,) gets rid of the inherent shortcomings of the brushless DC motor, and replaces the mechanical motor rotor with the electronic motor rotor. Therefore, the brushless DC motor not only has the excellent speed characteristics of the DC motor, but also has the advantages of simple structure, no commutation flame, reliable operation and easy maintenance.

06/14/2020

Common failures of half-sealed piston compressors

Common failures of half-sealed piston compressors 1. The compressor cannot start normally 1. First check whether the power supply voltage is too low or the motor line is poorly connected. If the grid voltage is too low, start again after the grid volt器2䀀
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08/14/2020

What is the hazard of high temperature to compressor motor and lubricating oil

The heat generated by the compressor during normal operation should not cause overheating. Normal motor heating, compression heat and friction heat have been carefully considered when designing the compressor,

02/25/2021

What's wrong with the freezer not cooling

There are four main reasons: the first is the lack of refrigerant and the compressor has problems; the second is the problem of the power cord of the freezer; the third is the frost in the evaporator of the freezer; the fourth is that the storage in the freezer is too full. Of course, no matter what the reason is, you should find a professional to help repair the loophole or add refrigerant.

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

08/08/2020

The main reason for the deterioration of central air conditioning refrigeration oil

The main reason for the deterioration of central air conditioning refrigeration oil 1. The main reason for the deterioration of frozen oil 　　1, mixed with water 　　 Due to the infiltration of air into the refrigeration system, the moisture in the air is –ﰨ2䀀湠疖VǜV
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09/04/2020

From the buying habits of motor users, how to better promote high-efficiency motors

Motor energy saving is a key project in industrial energy saving, and the motor system energy saving project is also one of the key energy saving projects designated by my country.