Danfoss Compressor SH300A6ALM

09/14/2020

Analysis of common failures of air-cooled compressors (1)

There are three common failures in the main components of air-cooled compressors: 1. Failure of the gas circuit system 2. Failure of the oil circuit system 3. Failure of the transmission mechanism. Do some system analysis below

01/23/2023

How to Deal with Spindle Amplifier Alarm Codes?

When faults occur, there will be various alarm codes on the Spindle amplifier, each representing different faults.

06/26/2023

Why is My Fridge Not Cooling & How to Fix

A refrigerator is one of the most important appliances in any home. It keeps your food fresh and prevents spoilage. However, if your fridge is not cooling, it can be a cause for concern.

06/14/2020

Hematemesis! Detailed explanation of the most comprehensive knowledge of relay protection

Hematemesis! Detailed explanation of the most comprehensive knowledge of relay protection When the power components in the power system (such as generators, lines, etc.) or the power system itself fails and endangers the safe operation of the power syste器2䀀
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06/24/2020

What's wrong with the freezer not cooling

There are four main reasons: the first is the lack of refrigerant and the compressor has problems; the second is the problem of the power cord of the freezer; the third is the frost in the evaporator of the freezer; the fourth is that the storage in the freezer is too full. Of course, no matter what the reason is, you should find a professional to help repair the loophole or add refrigerant.

08/24/2020

Do cold storage maintenance, you must understand this knowledge!

1. "Three Preventions" of the Refrigeration System 　　 1. Prevent the evaporation temperature from being too low 　　 The increase in the temperature difference between the evaporating temperature and the warehouse temperature will make the evaporating temperature too low

07/07/2020

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

08/03/2020

The difference between refrigerant R404A and R507

Refrigerant is also called refrigeration working fluid, which is the blood of refrigeration system. It is called refrigerant, refrigerant or Freon in many places.

06/23/2020

Advantages and disadvantages of Hitachi central air conditioning

At present, the central air-conditioning of the refrigerant system is still the best done by Japanese brands. When it comes to Japanese central air-conditioning, one has to say that Hitachi, one of the Japanese air-conditioning BOSS, is a well-known international central air-conditioning brand. Most air conditioners now use scroll compressors as the core of power, and the world’s first scroll machine for air conditioning was manufactured by Hitachi in 1983.

07/25/2024

Heat Pump Reversing Valve Structure, Working Principle and Troubleshooting

The heat pump reversing valve (HVAC reversing valve) is mainly used in heat pumps. Since there are mainly four pipes connected to it in structure, it is often called a four-way reversing valve.