Danfoss Compressor SZ300A3RJ

07/26/2020

This is a common failure of refrigeration compressors!

The excessively high suction temperature is mainly caused by the increase of suction superheat. Note that high suction temperature does not mean high suction pressure, because suction is superheated steam.

07/16/2020

How to see if the refrigerant leaks in the high and low temperature test chamber

How to check whether the refrigerant leaks in the high and low temperature test box; the standard high and low temperature test box and the constant temperature and humidity test box are all selected by the air-cooled compressor, and the working principle is the same as that of the air conditioning refrigeration

05/19/2025

The reason why the air conditioner is not cooling

Occasionally encounter the problem that the air conditioner does not cool in life. Don't worry at this time. The reason for the air conditioner not cooling is not very complicated. After understanding the reason for the air conditioner not cooling, you can solve the problem by taking the right medicine.

06/29/2020

Several causes of compressor burning

05/04/2023

What is an HVAC System?

There are many systems and components in a home or building that we take for granted, such as roofs, plumbing, and electricity. HVAC is the main system that probably will be most underrated: a massive heating and cooling system driven by a miniature thermostat.

06/14/2020

Analysis of the causes of liquid compressor blowdown

 The phenomenon that the liquid refrigerant and/or lubricating oil of the refrigeration system damages the suction valve piece when the gas is sucked into the compressor cylinder, and is not quickly discharged during the exhaust process after entering the器2䀀
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07/16/2024

Sprinkler Valve Solenoid Replacement: How to Replace a Sprinkler Valve Solenoid

Maintaining your sprinkler system is crucial for keeping your lawn lush and green. One common issue that arises is a faulty solenoid in the sprinkler valve.

07/05/2020

Hitachi screw compressor failure case

Hitachi screw compressor failure case The author summarizes the case of Hitachi screw compressor maintenance and replacement bearings, and shares the data, please send it to a friend to collect and forward it for use

06/14/2020

Take you to understand the development status of Chinese air compressor industry

According to statistics, in recent years, China's air compressor output has been increasing year by year. In the future, compressed air system energy-saving services will transform the energy-saving control of single equipment to the energy-saving design ﰸ2䀀
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09/06/2020

The air compressor lubricant is not up to standard

Air compressor lubricating oil is of great significance to the normal operation of screw air compressors, and it has a great impact on the reliability, economy and service life of the air compressor.