Emerson Nidec Frequency Converter VFD SK6402

07/07/2020

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

08/18/2021

How to Repair Your Servo Motor

First, you need to do the following things before starting the servo motor. Measure the insulation resistance (for low voltage motor it should not be less than 0.5m).

06/30/2020

How to deal with the faulty host refrigerant system of the compressor

How to deal with the faulty host refrigerant system of the compressor How to deal with a main engine refrigerant system where the compressor has burnt out or failed is a more serious and technically demanding problem than the production of a new main engine. However, it is often neglected by most of the technicians, and even the wrong concept is replaced if they think that it is broken anyway! It causes some disputes that the compressor quality is poor or others use it improperly.

08/19/2020

Anyone who understands the structure of industrial chillers should know that once the compression ratio of the compressor is too high

Anyone who understands the structure of industrial chillers should know that once the compression ratio of the compressor is too high, it will definitely reduce the work efficiency of the compressor, and the work efficiency of other components will also be reduced due to various reasons

06/14/2020

The refrigeration master analyzes the phenomenon and cause of compressor liquid blow, you are worth reading!

The refrigeration master analyzes the phenomenon and cause of compressor liquid blow, you are worth reading! The phenomenon that the refrigerant or lubricating oil damages the intake valve piece when the gas is sucked into the compressor cylinder, and do器2䀀
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07/29/2020

R32 refrigerant training

Note: For products using R290 (such as dehumidifiers), if system failures are involved, automatic welding torch repairs are strictly prohibited. Please return the products to the factory according to the process.

08/18/2020

How to wire the cold storage distribution box What problems should be paid attention to when wiring

Cold storage power distribution boxes play a very important role in the use of cold storage, and many people do not know much about cold storage power distribution boxes. Let's take a look at it with okmarts.com editor.

08/20/2020

Air conditioner repairs are too messy the repairman has just walked for 10 minutes and the repaired air conditioner is broken again

"The air conditioner broke down after a while after it was repaired. Now I want to contact the maintenance company but I don't care what it says." Recently, as the temperature rises, the air conditioner usage rate has continued to increase

08/14/2020

Commissioning of the water system (heat source) of the air conditioning system-equipment commissioning

Water test operation of surface cooler and spray device in air conditioning unit. Check whether the pressure difference between the inlet pipe pressure and the outlet pipe pressure of the meter cooler is within the normal range and whether there is water leakage; whether the water trap of the meter cooler is installed correctly and whether the discharge is smooth.

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.