Hitachi CPU Module LPU100H

07/15/2020

About the built-in pressure relief valve (IPR valve) of Copeland compressors

About the built-in pressure relief valve (IPR valve) of Copeland compressors Among the built-in protection devices of Copeland compressors ZB15-ZB48, ZF06-ZF25, there is a small pressure protection device called built-in pressure relief valve (IPR valve). Below we briefly talk about the work of the built-in pressure relief valve.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

01/03/2024

Printer Cooling: Methods, Common Problems ＆ Troubleshooting

Printers are familiar to everyone and are one of the essential office tools for work. From inkjet, dot matrix, laser, to the now popular 3D technology, printers have developed rapidly.

07/02/2020

Baifuma Compressor How to define the stability of the compressor

Baifuma Compressor How to define the stability of the compressor Baifuma compressors have many characteristics, such as pressure ratio, efficiency, mass flow and additional energy. Another important feature is stability. Many people will ignore the stability of the compressor, which is a very bad thing.

07/25/2020

How to distinguish between original refrigeration compressor and second-hand refrigeration compressor?

At present, illegal businesses on the market often use second-hand or refurbished or offline refrigeration compressors to make industrial chillers in order to make huge profits. They are used in some water-cooled industrial chillers, air-cooled industrial chillers, and screw-type water-cooled industrial chillers.

10/20/2025

Basics of Servo Motor You Should Know

Servo control refers to the effective control of the position, speed and acceleration of certain object to meet a certain purpose. It is one of the most important control methods in modern industry.

09/06/2022

What is Synchronous Reluctance Motor and How Does It Work

Synchronous Reluctance Motor (referred to as SynRM) is a new type of AC electric motor that forms a closed loop along the path of least magnetic reluctance

08/11/2020

How to maintain the lubrication system of the chiller

In the operation system of the chiller, more attention is paid to the refrigerant circulation system, the chilled water circulation system and the electrical control system of the refrigerator. The lubrication system is often overlooked. As everyone knows, this system is also very important to the chiller.

03/11/2024

Hydrogen Fuel Cell Thermal Management: Two Main Ways Explained with Diagrams

Proton exchange membrane fuel cells (PEMFC) have the advantages of high efficiency, cleanliness, zero emissions, etc.

09/09/2022

Permanent Magnet DC Motor: Types, Application, Selection Principle (1)

A <strong>permanent magnet DC motor</strong> (PMDC motor) is a type of DC motor that uses permanent magnets to create a magnetic field.