Motorola Integrated Circuit MC68B09EFN

08/11/2020

The temperature status and failure causes of the unit components of various commercial central air conditioning systems

As we all know, refrigerators are divided into screw refrigerators and other different types of refrigerators, but this is classified by compressors, and by the heat dissipation method and cooling system,

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.

06/21/2020

Operation process of automobile air-conditioning refrigeration system and the role of pressure switch

Operation process of automobile air-conditioning refrigeration system and the role of pressure switch From top to bottom, automobile air conditioners are mainly composed of blowers, evaporators, pressure switches, dryers, expansion valves, condensers, and the most source compressors. The operation process of this air-conditioning system is: heat dissipation,

06/29/2020

Compression ratio of American Copeland compressor

09/10/2020

Analysis on How to Protect Technology Property Rights in Hardware and Electrical Industry

At present, the German court has pronounced that Apple has infringed on Motorola’s two patented wireless communications technologies and prohibited the sale of products using these two technologies in Germany.

06/17/2022

What is A VFD?

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor.

07/30/2020

What to do if the air conditioner protection light is flashing and not cooling

What to do if the air conditioner protection light is flashing and not cooling<br></br> In the entire home repair industry, what can quickly arouse the attention of users is the previous TV repair, and the current air conditioning repair is also one

08/06/2020

Principles that need to be followed when using antifreeze in industrial chillers

Principles that need to be followed when using antifreeze in industrial chillers<br></br> The role of antifreeze for industrial chillers is to prevent expansion and cracking of heat exchangers, pipes or engine cylinder blocks due to the freezing of the coolant.

08/19/2020

Different types of condensers have different layout requirements

There are several types of condensers: vertical, horizontal, spraying and evaporating, which should be arranged according to different types of cold storage. The installation height of the condenser must ensure that its liquid flows into the liquid reservoir under self-flow conditions.

08/23/2021

Why We Use VFD - Efficiency and Performance

The Variable Frequency Drive (VFD) is a device widely used to convert the constant voltage of an autonomous AC power source into a variable voltage for controlling the torque