Convo VFD FSCG05.1-315K-3P380-A-PP-NNNN-01V01

08/16/2020

Precautions for the use of air conditioning box filters need to pay attention to three points

The air-conditioning box filter is an indispensable part of air-conditioning equipment. It mainly purifies the pollution in the air and prevents dust from entering the air-conditioning and affecting the use of the equipment.

07/05/2020

Full analysis of high-temperature burn-down failure of scroll compressor

Full analysis of high-temperature burn-down failure of scroll compressor Scroll compressor overheating at high temperature for a long time will not only reduce the insulation performance and reliability of the motor, shorten the life of the motor, but also reduce the lubricating ability of the lubricating oil, and even cause carbonization and acid hydrolysis of the lubricating oil.

08/09/2020

Common failures encountered in the use of plate heat exchangers

1. External leakage, mainly manifested as leakage (small volume, discontinuous water droplets) and leakage (large volume, continuous water droplets).

08/14/2020

Trouble shooting and correct selection method for thermal expansion valve debugging

As we all know, the thermal expansion valve is one of the four major components in the refrigeration system. It is responsible for reducing the refrigerant from the condensing pressure to the evaporating pressure in the system

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.

09/09/2020

The effect of using different air compressors in the same industry

People who are often in contact with air compressors should know the basic difference between a piston machine and a screw machine. They have obvious differences in structure, moving parts, operating parts, life span and performance.

08/20/2020

Operation management of wet stroke of refrigeration compressor

The wet stroke of the compressor is caused by the liquid refrigerant entering the cylinder. When the amount of liquid entering is small, frost will form on the outside of the cylinder.

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.

06/14/2020

Piston refrigeration compressor classification

Piston refrigeration compressor classification? According to the refrigerant used, piston refrigeration compressors are divided into ammonia compressors and freon compressors. Ammonia compressors are mostly used as hosts in large and medium-sized refrige器2䀀
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07/07/2020

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