Danfoss Compressor SM175A3PBH

09/23/2025

AC Making Noise When off: Where is the Noise from and What to Do?

If you’ve ever heard your AC making noise when off, it can be a bit unnerving. You may wonder what's causing the noise and what you can do to fix the problem.

09/07/2020

The difference between permanent magnet variable frequency air compressor and ordinary air compressor

With the development of science and technology, air compressors, as an important power equipment, are widely used in many industrial fields such as machinery, metallurgy, building materials, electronics and electricity, chemicals, food, and textiles.

06/29/2020

Several causes of compressor burning

08/06/2020

The frosting direction of the refrigeration system is exquisite, do you know

The frosting direction of the refrigeration system is exquisite, do you know<br></br> 1. If the frosting direction is the compressor return port, it will gradually frost toward the evaporator. The possible reasons are:

08/11/2020

Which three points should refrigerating machine manufacturers pay attention to when doing air tightness test

After the assembly of each refrigeration unit is completed, a series of tests are required to ensure the safe and stable operation of the unit, and there is an air tightness test. So, what should the refrigerator manufacturer pay attention to when doing the air tightness test?

07/31/2020

What should I do if the suction pressure of the refrigeration unit is too low 7 major failure causes to know

In the pharmaceutical, food and other industries, refrigeration units are common equipment, providing reliable protection for various low-temperature environments such as pharmaceuticals.

08/12/2020

Reasons for the increase in condenser pressure in cold storage projects

The role of the cold storage is to ensure the quality of the stored items. With the country’s support for the construction of cold storage, cold storage projects have appeared in more places,

07/17/2020

Five items to pay attention to when using Copeland compressors

Copeland compressors are strictly forbidden to perform pressure test under oxygen, and for nitrogen without safety valve! Improper use will cause an explosion and cause casualties. Some users have already experienced this situation. I hope that all dealers promptly remind the installation personnel and use it as a warning. They must follow the operation process.

09/08/2022

Brushless Vs Brushed Motor

The following article introduces some differences between brushed motors and brushless motors in terms of working principle and performance, hoping to deepen your understanding of them.

06/14/2020

Basic knowledge and role of refrigeration oil

The function and classification of refrigeration oil and the requirements of refrigeration equipment for refrigeration oil