Danfoss Compressor SH420B3AAA

08/02/2020

What is the four-pipe air conditioner Under what circumstances

Four-pipe air-conditioning means that the air-conditioning box is equipped with cold coils and hot coils at the same time. Each group of coils is fed one time, a total of four, so it is called four-pipe.

09/20/2020

Noise life

For household appliances bearings, the bearing load is very small and the bearing life is very long. However, after a certain period of operation, the bearing will also cause wear, increased vibration and noise, and deterioration of grease.

08/15/2020

Precautions for the installation of refrigeration equipment

For large enterprises that need to use refrigeration equipment, due to the larger scale of the enterprise, the demand for refrigeration will also be greater. Therefore, when selecting and installing refrigeration equipment

08/14/2020

How to flush reciprocating compressor with refrigerant oil

After the refrigeration equipment and its compressor are used for a period of time, the added refrigerating oil will be naturally lost during the operation of the equipment.

06/29/2020

Several causes of compressor burning

03/20/2023

Structural Characteristics of Vacuum Pump

The vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physical-chemical methods to extract air from the pumped container to obtain a vacuum.

01/15/2021

Covid-19Taking precautions to keep the business running.

Covid-19Taking precautions to keep the business running. As the world steps up to the challenge of controlling the Covid19 virus, we are maintaining an unwavering commitment for safety as colleagues everywhere are keeping our operations and business goin器2䀀
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06/27/2025

VFD Basics - How VFD Controls the Motor Running?

When the main circuit of the VFD is connected with the power line, in order to control the motor, it is necessary to connect the surrounding control circuit to the relevant terminals

09/06/2020

Consumable parts of screw air compressor-air filter

The air compressor filter is composed of an air filter assembly and a filter element. The outside is connected to the intake valve of the air compressor through a joint and a threaded pipe to filter the dust, particles and other impurities in the air.

06/14/2020

The harm and elimination method of air intake in refrigeration system

The harm and elimination method of air intake in refrigeration system 1 Overview In the refrigeration system, the so-called non-condensable gas means that when the refrigeration system is working, at a specific temperature and pressure in the condense器2䀀
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