Lenze Servo Drive EVS9322-ET

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

08/20/2020

Why does the air conditioning system need to be processed to eliminate noise

In addition to the air-conditioning engineering requirements for temperature, humidity, wind speed, and air cleanliness, the vibration and noise of air-conditioning equipment (fans, chillers, water pumps, cooling towers, etc.)

02/24/2023

The Differences Between Butterfly Valve and Ball Valve

The biggest difference between butterfly valve and ball valve is that the opening and closing part of butterfly valve is a plate, while the ball valve is a ball.

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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08/09/2020

Testing methods and maintenance skills of air-conditioning computer boards

The microcomputer control system of the household air conditioner is commonly known as the computer board. It is the nerve center of the air conditioner. When a failure occurs, the entire air conditioner will be in a paralyzed state

08/14/2020

How to choose cold storage cable

In the process of cold storage installation, cables are an indispensable material. Although we can see a lot in the market, these cables and wires are also classified in different ways, and the power they can support is also different.

07/29/2020

Common sense of wire and cable calculation

What is the maximum current and power that a square wire can pass? How much wire is used for 100KW of electricity for project construction? Large wires cause waste, and small wires have more serious consequences. Here I share with you my estimation experience.

01/11/2021

Mitsubishi air conditioning repair case sharing

Mitsubishi air conditioning repair case sharing Mitsubishi air conditioner maintenance case sharing Failure phenomenon: Mitsubishi MSH-J12NV split type air conditioner does not rotate the indoor fan after starting, and the rest work normally. Ana器2䀀
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07/23/2020

9 usage details that affect the life of air conditioners

1. Clean the air filter frequently. Usually clean once every 2-3 weeks. The steps are: remove the panel; pull out the air filter; clean the air filter. Rinse the air filter under the tap. Since the filter is made of plastic frame and polyester silk, it should not be cleaned with hot water above 40℃ to prevent shrinkage and deformation.

07/19/2020

Main components of screw chiller

The power of the screw chiller is relatively larger than that of the scroll type, and it is mainly used in central air conditioning systems or large industrial refrigeration. (1) Twin-screw refrigeration compressor: The twin-screw refrigeration compressor is an energy-adjustable oil-injected compressor.