COSMO Relay D2A121000

09/03/2020

Ultra-quiet oil-free air compressor

Ultra-quiet oil-free air compressor model: YB-WJ60 　　Super noise and sound insulation design The ultra-quiet oil-free air compressor adheres to the use of high-grade sound-proof steel plates,

05/17/2023

How to Add Oil to AC Compressor

When the all-in-one air conditioner leaves the factory, there is a sufficient amount of AC compressor oil (commonly known as refrigeration oil, refrigerant oil, AC lubricants, AC oil) inside the machine.

08/21/2020

The role of pressure relay in refrigeration system

In industrial refrigeration, a pressure relay is an electric switch controlled by a pressure signal. It is often used as a protection and regulating element that directly controls the start and stop of the refrigeration compressor or controls the opening and closing of certain solenoid valves

06/14/2020

What if the compressor burns out

What if the compressor burns out Why does the compressor burn the motor? What caused the burn-in phenomenon? The summary of the reasons for motor burning can be divided into: load, power supply, motor insulation, and lack of equality.

06/14/2020

Air Compressors Use in Agriculture and Farming

When you think of farming or agriculture, the tools of the trade that spring to mind are tractors, plows, shovels and scythes. But did you know that air compressors have been staples of this industry for decades – and in fact are helping to pioneer new an器2䀀
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09/22/2023

Water-Cooled Chiller vs Air-Cooled Chiller: Which One is Better?

When it comes to cooling systems for large commercial buildings or industrial facilities, two of the most common options are water-cooled chillers and air-cooled chillers. Both types of chillers are designed to remove heat from a building or industrial process, but they operate in different ways and have their own unique advantages and disadvantages.

09/07/2020

The working principle of the frequency converter

The main circuit is the power conversion part that provides the voltage and frequency power supply for the asynchronous motor. The main circuit of the frequency converter can be roughly divided into two categories:

09/30/2025

The difference between fixed speed, frequency conversion, DC frequency conversion, AC frequency conversion, digital scroll air conditioner

The difference between fixed speed, frequency conversion, DC frequency conversion, AC frequency conversion, digital scroll air conditioner The fixed speed air conditioner means that the speed of the internal compressor motor is constant and the temperaturŒﰨ2䀀湠疌VǜV
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09/11/2020

High exhaust temperature is the most common failure of screw air compressors

High exhaust temperature is the most common failure of screw air compressors, and its harm is also greater. Long-term operation of equipment under high exhaust temperature conditions mainly has the following hazards:

07/07/2020

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