Danfoss Compressor SH485A7AAS

03/04/2021

Advantages of servo motor

Precision: the closed-loop control of position, speed and torque, and the problem of out of step of stepping motor is solved; Speed: high speed performance, general rated speed can reach 2000 ~ 3000 rpm;

07/22/2020

The adjustment principle of the screw compressor slide valve is actually very simple!

Today, I will tell you about the maintenance example of the poor cooling effect of the air conditioner.<br></br> <br></br> 1. The cooling is poor, and the operating frequency is not up to the highest. The exhaust pipe overheating code will be displayed for about 20 minutes.<br></br>

09/10/2020

Air compressor lubricant replacement standard and market analysis

1. The selection criteria of air compressor oil 　　1) Oil selection: mineral oil, semi-synthetic oil, synthetic oil (synthetic oil is mainly PAO series) 　　2) Pour point: ≤-10℃ 　　3) Flash point: ≥180℃ 　　4) Acid value: 0.2 　　5) Performance requirements: good oxidation resistance, anti-emulsification, and less residual carbon

12/10/2024

How to detect the tightness of the refrigeration equipment system

Keep the refrigeration equipment under a proper vacuum for a certain period of time, and observe whether the air infiltrates the system from the reading of the vacuum pressure gauge to check the sealing performance of the system.

03/27/2025

Cooling Fan Basics: Structure, Working Principle Diagram, Speed, Air Volume, Types

The cooling fan must be familiar to everyone. Computers, water dispensers, refrigerators, air conditioners, air purifiers, automobiles, etc.

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.

09/09/2020

Look at the loyalty and infidelity of air compressor agents

In the increasingly competitive post-air compressor era, whether it is a large international brand enterprise or a small domestic brand, they have encountered a real problem, that is, how to maintain the loyalty of agents.

06/29/2020

Several causes of compressor burning

06/14/2020

How to judge the lack of fluoride in air conditioner After reading the master, you will understand

How to judge the lack of fluoride in air conditioner After reading the master, you will understand Now that the temperature is getting higher in summer, many of our friends have to use air conditioners, but many people turn on the air conditioners and th器2䀀
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08/11/2020

Look at the difference between fresh air system and exhaust fan

With the increasing airtightness of residences, it has become an inevitable trend to choose suitable ventilation equipment. When looking for ventilation products, many users will search for exhaust fans for home fresh air systems