Fuji VFD Frequency Converter FRN5.5E1E-2U12

08/16/2020

Detection of capacitors in refrigeration accessories

The common marking method for capacitors in refrigeration accessories is direct marking, and the commonly used units are pF and μF. However, some small-capacity capacitors use the digital labeling method, which usually has three digits.

01/14/2025

Refrigerator PTC Relay Wiring Method

The PTC (positive temperature coefficient) relay is directly connected in series with the secondary winding (start winding).

08/08/2020

VRV air conditioning system, do you know

1.Principle of VRV system The variable refrigerant flow (Varied Refrigerant Volume, VRV) air-conditioning system is a refrigerant type air-conditioning system. Heat exchanger, compressor and other refrigeration accessories, the end device is an indoor uni–ﰨ2䀀湠疖VǜV
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09/05/2020

The new pattern and development situation of industrial gases

The industrial gas industry has a long history of more than 140 years. In 1912, my country's first air separation system was born. After the reform and opening up, industrial gas engineering was also the first industry in China that was opened to foreign capital, and the industry developed earlier.

06/14/2020

Scroll compressor

Scroll compressor

08/13/2020

Refrigeration system 41 essay questions, too comprehensive!

1. What are the three necessary conditions for the safe operation of the refrigeration system? 　　Answer: (1) The refrigerant pressure in the system must not be abnormally high to avoid equipment rupture.

07/31/2020

Five common problems of refrigeration system

Trouble phenomenon: The cooling effect of the whole machine is poor, the water outlet is only slightly cool, and the pressure on the high pressure side and the low pressure side are found to be low when checked with the manifold pressure gauge (under the normal speed of the compressor

06/14/2020

How to solve the problems encountered during the operation of 120KW cold air-cooled compressor

The 120KW cold capacity air-cooled compressor mainly has three related systems: refrigerant circulation system, water circulation system and automatic electrical control system.

06/14/2020

Compressor common fault handling

Compressor common fault handling Foam when starting with liquid When the air-cooled compressor is started, the phenomenon that the lubricating oil in the crankcase blisters violently is called liquid start. The basic reason for starting with liquid is 器2䀀
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06/29/2020

What is the cause of compressor pipeline vibration