Danfoss Compressor SH300A9ABO

07/17/2020

Empty and replace the expansion valve after servicing the refrigeration system

Let's introduce the operation process when replacing the expansion valve in the refrigeration system. In the system, when the low pressure of the system is under pressure control, short-circuit the controller before venting the system to prevent the system from jumping during vacuum.

04/13/2022

How to Unclog Expansion Valve?

In the air conditioning and refrigeration system, the blockage fault of expansion valve often occurs. The general blockage faults mainly include "ice blockage" and "dirty blockage".

08/19/2020

What kind of expansion valve should be used for industrial chiller selection

1. When industrial chiller manufacturers produce air-cooled or water-cooled chillers, they generally use external balance thermal expansion valves when selecting thermal expansion valves.

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>

08/07/2020

Ten prohibitions on multi-line air conditioning installation

1. On-site material stacking<br></br> 　　 The materials should be stacked neatly and orderly, and both ends must be sealed to ensure cleanliness. The copper pipe should be placed on a shelf that is ventilated and dry and is above the ground 300mm.

06/24/2020

Why the air conditioner does not cool

The cooling load is overloaded or the space is too large, the number of air conditioners is not correct; improper installation will cause poor air circulation, resulting in poor cooling effect; when the freon in the air conditioner is insufficient, it will cause the cooling effect of the air conditioner to deteriorate; the air conditioner is not on time Do cleaning and maintenance, etc.

08/19/2020

Factors affecting the cost of cold storage projects

With the large-scale use of cold storage projects in daily life, consumers of cold storage installations are very concerned about the cost of cold storage projects. Many consumers will ask

06/29/2020

How the compressor works

08/17/2020

Regulations to be observed in the use of cold rooms in civil cold storage

1. Pozzolanic cement and slag cement mixed with pozzolanic materials shall not be used in the cold room of civil construction cold storage; different types of cement shall not be mixed, and two types of cement shall not be used for the same component.

06/14/2020

Structural design analysis of small linear refrigeration compressor

Structural design analysis of small linear refrigeration compressor