Mitsubishi PLC Q173DCPU

08/20/2020

Introduction of solenoid valve and troubleshooting method

1. Symptoms-the solenoid valve does not open possible reason: 　　1 The coil has no voltage. 2 Incorrect voltage/frequency 3 Coil burned out 4 Pressure

08/20/2020

Common sense of home appliances the correct posture for adding fluoride to air conditioners

Add fluoride if you don't agree. As long as the air conditioner is cold, the first words many friends call after sales are, should the air conditioner add fluoride? Regardless of three to seven twenty one, two hundred yuan first, is it enough?

08/16/2020

How to install a water-cooled screw chiller

Before using the water-cooled screw chiller, you need to know the installation requirements of the chiller, so that it will reduce a lot of unnecessary troubles during operation.

08/03/2020

How to improve the energy efficiency of chilled water air conditioning systems in data centers

Frozen water-type air conditioning systems have long been a mature application in data centers, but many users are still conservative in their applications.

06/20/2023

LG Refrigerator Problems: Common Issues and Solutions

LG refrigerators are known for their sleek design, advanced features, and energy efficiency. However, even the best refrigerators can experience problems from time to time.

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

04/14/2025

How to Add Refrigerant to an Air Conditioner: A Step-by-Step Guide

Maintaining the proper refrigerant levels in your air conditioner is crucial to ensure efficient cooling and optimal performance.

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

08/13/2020

Lubrication method of screw chiller internal components

If the compressor lubrication system of the screw chiller is better, it can reduce the friction, friction heat and wear of the parts of the compressor, better improve the mechanical efficiency of the compressor

03/01/2021

The main difference between brushless DC motor and DC servo motor

Different definitions: (1) Brushless DC motor is a typical mechatronics product, which is composed of motor body and driver. Brushless motor refers to the motor without brush and commutator (or collector ring), also known as commutator less motor. As early as the 19th century, when the motor was born, the practical motor was the brushless form, that is, the AC squirrel cage asynchronous motor, which has been widely used. However, the asynchronous motor has many insurmountable defects, so that the development of motor technology is slow. The transistor was born in the middle of last century, so the brushless DC motor using transistor commutation circuit instead of brush and commutator came into being. This new type of brushless motor is called electronic commutation DC motor, which overcomes the defects of the first generation of brushless motor.