Ebmpapst Fan S4E 250-AH02-01

06/14/2020

Working principle of rotary vane compressor

Working principle of rotary vane compressor

08/02/2020

Do you know the key "3, 5, 8" in the installation of central air conditioning fluorine system?

Central air-conditioning creates a high-quality home life for us. Before installing central air-conditioning, we must make preparations for purchase, design and installation in advance, so as to be well aware of and avoid blindness.

07/15/2020

What you need to know about the electrical connection of Copeland refrigeration compressors

Please pay attention to the direction of the terminals in the junction box (single-phase: R, S, C; three-phase: T1, T2, T3). In order to ensure the normal start-up and operation of the Copeland refrigeration compressor, the power supply voltage cannot be lower than 10% of the Copeland compressor rated voltage.

06/29/2020

Compression ratio of American Copeland compressor

12/27/2022

How do Programmable Logic Controllers Work?

When a programmable logic controller (PLC) is put into operation, its working process is generally divided into three steps, namely input scan, executing program(s), and output scan.

06/14/2020

External balance thermal expansion valve

The difference between the external balance type thermal expansion valve and the internal balance type in structure and installation is that the space under the diaphragm of the external balance type valve is not in communication with the outlet of the va器2䀀
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08/09/2020

Common oil shortage failures of scroll refrigeration compressors

The compressor is short of oil for a long time-the mechanism and the friction pairs are overheated, causing the bearings to sinter and hold the shaft.

09/04/2020

The advantages of air compressor asynchronous motor over traditional permanent magnet motor

The asynchronous motor is a three-phase induction motor, not the rare earth permanent magnet motor used in traditional electric vehicles. What are the reasons for this? The difference between induction motors and permanent magnet motors.

07/18/2020

The common fault analysis of refrigeration compressors is here!

Working condition and adjustment of refrigeration system of low temperature chiller Refrigerators are now widely used in the refrigeration industry, and the refrigerant is usually R22 (also R404a). In order to facilitate operation and maintenance and reduce the installation location, the refrigeration compressor, oil separator, water-cooled shell and tube condenser, filter drier

06/14/2020

About the six advantages of the fresh air system and the four details that need attention

About the six advantages of the fresh air system and the four details that need attention With the continuous improvement of living standards, coupled with whether the haze weather is invading, the fresh air system is gradually becoming a necessary choicﰸ2䀀
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