Bellofram Proportional Valve 969-725-000

08/04/2020

Several important issues that should be paid attention to when installing and debugging the inverter on site

nverter is an electric energy control device that uses the on-off action of power semiconductor devices to transform industrial frequency power into another frequency.

07/15/2020

How to avoid overheat protection of scroll Copeland compressor

Friends who have used Copeland compressors know that Copeland compressors are relatively solid to use and are not so easily damaged. This is because Copeland compressors have several built-in protection programs. Overheat protection is one of them. Today we will talk about the internal temperature protector of the scroll compressor.

08/14/2020

Factors affecting the boiling heat transfer of refrigerant liquid

In the evaporator, the heat of the cooled medium is transferred to the refrigerant through the heat transfer wall, so that the liquid refrigerant absorbs heat and vaporizes.

08/03/2020

Temporary treatment method for plate heat exchanger gasket aging

The softening of the elastic gasket is related to pressure and temperature. When the gasket loses its elasticity, the heat exchanger will leak. In some products, in order to solve the dripping phenomenon caused by the aging of the sealing gasket,

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/07/2020

High pressure failure of chiller and its treatment measures

High pressure failure of chiller and its treatment measures<br></br> Recently, many micro friends asked the editor about the causes of the high-pressure failure of the chiller. The editor recently reviewed information and sorted out some relevant measuresŒﰨ2䀀湠疌VǜV
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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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01/10/2021

[Fault case] Mitsubishi air conditioner, indoor and outdoor fans run, but the compressor does not run

The fan is running, but the compressor is not running 　　 Analysis and detection: Analysis of the cause of the failure may be the failure of the compressor starting capacitor, causing damage to the compressor winding or compressor jamming; after cutting 器2䀀
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09/01/2020

Brief analysis of the structure and working principle of the oil separation core and the cause of failure

There is an important part of the oil and gas separator of the screw air compressor called the oil separation core. Many customers are very confused about the burning of the oil separation core.

06/24/2020

What is the solution of air conditioning not cooling

There are many reasons why the air conditioner is not cooling. For example, if the air conditioner refrigerant is insufficient, you can find a professional to add snow; secondly, it may be caused by the error of the air conditioner installation, such as the ventilation pipe is too long. It is recommended to shorten the length of the ventilation pipe; A lot of dust stains accumulate on the radiator and cause no cooling. It is recommended to clean the air conditioner.