Copeland Compressor CR20K6-PFV-960

08/11/2020

What will happen if the thermal expansion valve is configured too large

A 10P air-conditioning unit is equipped with a 12-ton (1 cooling ton=3.517KW) expansion valve. What will happen?<br></br> 　　 If you follow the DANFOSS selection software, this configuration will not be recommended (all think this type of selection is too large)<br></br>

08/14/2020

Operating instructions for industrial refrigerators-what issues need to be paid attention to

In the fierce social competition, if we want to maintain our strength and continuously increase our comprehensive capabilities, we need to improve the quality and design of products and all aspects.

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

09/17/2020

Discussion on Waterless Lubrication Modification of Nitrogen Compressor

With the rapid development of industry, nitrogen has been widely used in the fields of chemical industry, electronics, metallurgy, food, machinery and other fields. my country's demand for nitrogen is increasing at a rate of about 20% every year.

08/24/2020

Causes of uneven liquid distribution in refrigeration systems and tragic cases!

If the distribution head is not evenly distributed, it will cause too much refrigerant in some of the branches, which will cause the evaporator to frost.

08/11/2020

Common practice of oil return design in refrigeration system

When the condenser is installed higher than the compressor, a U-shaped bend is required at the intake pipe of the condenser to prevent oil from returning to the exhaust side of the compressor during shutdown and also help prevent liquid refrigerant from the condenser

08/11/2020

How to choose refrigerant for high and low temperature alternating damp heat test chamber

There are many kinds of refrigeration used in the high and low temperature alternating damp heat test chamber, and different refrigerants have very different uses and application ranges. Today, we will focus on explaining the main refrigerants on the market.

03/24/2022

What is a Circuit Breaker?

In the process of circuit installation, a lot of facilities need to be configured. A circuit breaker is one of them. What is a circuit breaker? Let's learn about it together.

04/02/2025

FANUC Servo Amplifier Alarm Codes and Solutions (SV430~SV449)

FANUC Servo Amplifier Alarm Codes and Troubleshooting Methods

08/24/2020

Precautions for safe operation of chiller

Water chiller is a kind of cooling water equipment that can provide constant temperature, constant current and constant pressure. The working principle of the chiller is to inject a certain amount of water into the water tank in the machine,