KOA Resistor RK73H1HTTC6803F

09/14/2020

Analysis of why the compressor shell will condense

When the compressor is working normally, it is close to the low pressure cavity of the compressor. The temperature of the steel casing on the side is very low, if the compressor casing

09/08/2020

The characteristics of the main shaft of the frequency conversion screw air compressor

The main core of the equipment operation of the rod host during the operation of the variable frequency screw air compressor. Without the rod host equipment, the equipment cannot operate normally. The following is an explanation of the characteristics of the rod host used in the air compressor equipment:

08/11/2020

Some ways of energy saving for semi-hermetic refrigeration compressors

The semi-hermetic refrigeration compressor is a very common mechanical equipment in the society. It is very common in our lives. The reasonable use of semi-hermetic refrigeration compressors can greatly increase production efficiency and production benefits for businesses.

07/25/2020

Oil pressure protection? High and low voltage protection? Thermal relay protection? Come and see if the automatic control appliance fails

There are two types of failures in the automatic control of refrigeration devices: one is caused by the failure of the refrigeration system; the other is caused by automatic control, electrical component failure, and improper debugging.

08/21/2020

Five common problems of refrigeration system

1. Treatment of insufficient refrigerant 1. Trouble phenomenon: The cooling effect of the whole machine is poor, the water outlet is only slightly cool, and the pressure on the high pressure side and the low pressure side are found to be low when checked with the manifold pressure gauge

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.

05/30/2025

Air Curtain 101: Working Principle, Types, Function, Application and Selection

Air curtain, also called air door curtain, air door, is mainly installed at the entrances and exits of public places with air-conditioning environments.

08/28/2023

Heat Pump Not Turning On: Troubleshooting Guide

Heat pumps are a popular HVAC system for homeowners, thanks to their energy efficiency and ability to provide both heating and cooling.

09/07/2020

Selection and comparison of various dryers in air compressor systems

In the air compressor system, the selection of the dryer should be determined in accordance with the dry air consumption, the dryness requirements of the air equipment, the pressure, the type of air compressor... and other factors.

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