Mitsubishi PLC FX5U

08/24/2020

Problems in the planning, design and operation and maintenance of air conditioning and refrigeration systems

Usually, people look at the air conditioning and refrigeration system of a data center as simple, thinking that it is enough to create a temperature environment that meets the requirements and standards as long as the IT equipment runs.

09/23/2020

Air compressor classification, working principle and air compressor selection

Air compressor classification, working principle and air compressor selection The air compressor is the main body of the air source device. It is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy, and is a pressure generating device for compressed air.

08/17/2020

How to choose a compressor when building a cold storage

The compressor is the core of the entire cold storage system. It is the blood and the heart. It is one of the indispensable components in the complete cycle of the entire refrigeration system.

07/31/2020

Apply these 5 parameters to easily determine whether the refrigeration and air conditioning system is operating normally!

Condensing pressure is the pressure at which the refrigerant condenses into liquid in the condenser. Since the pressure inside the condenser in the refrigeration system cannot be measured, in fact, the pressure drop of the refrigerant in the exhaust pipe and the condenser is actually very small.

05/04/2022

How to Deal With 6 Common Faults of Contactor?

Cause: The short-circuit ring of AC contactor is broken or the end faces of dynamic iron cores and static iron cores are uneven; Skewed or dirty.

06/29/2020

Compression ratio of American Copeland compressor

09/05/2020

What are the reasons for excessive oil content in exhaust gas and how to deal with it

1) The screw oil level is too high. If the oil level is too high, the fluctuation of the liquid level in the oil and gas barrels during the operation of the unit will cause a large amount of gas to enter the oi

08/17/2020

How to clean the return air duct of central air conditioning

Today, the editor of okmarts.com mainly introduces some of the most commonly used and basic cleaning procedures for central air-conditioning. I hope it will be useful to everyone!

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

08/31/2020

Agent, why is your air compressor selling at a high price

Although almost everyone likes high prices in order to get more profits, many air compressor agents have gone into a misunderstanding in the process of realizing them. People who can achieve high prices by playing a good hand Rarely.