Delta VFD Frequency Converter VFD1850F43A

08/12/2020

How to distinguish the quality of copper pipes used in cold storage construction

1. Generally, you need to observe the appearance of the copper tube to judge during the purchase. The first is to look at the color of the copper tube. Different color judgments are made according to the type of copper tube purchased.

08/19/2020

Will the effect of villa ground source heat pump be worse after years of use

In recent years, ground source heat pumps have become a must for villa decoration. Of course, there are also customers who are concerned about whether the effect of ground source heat pumps will deteriorate after years of use. okmarts.com

09/03/2020

Why do compressors have to go to the workshop

Getting down to the workshop is actually a necessary stage that a compressor cannot bypass, just like socialism is the primary stage of communism (although this is rarely mentioned now, you must remember politics), this is a process.

07/31/2020

Multi-online display FC, FL, FE fault processing method

Outside machine LED3 double 8 indicator light is on and displays: FC, FL, FE. When the indicator light of the external mainboard and the line controller fail, the following figure will be displayed:

01/06/2025

What is the principle of the chiller shell and tube evaporator

The cold water shell and tube evaporator is made by expanding two-layer metal plates with high-pressure gas or by mechanical pressing. It can also be made of aluminum alloy die-casting.

07/07/2020

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

07/14/2020

Compressor 9 types of faults and hazard analysis are all here! ! !

Compressor 9 types of faults and hazard analysis are all here! ! ! 1. Common faults of compressor — start with liquid Starting with fluid is a problem that easily occurs when the machine is stopped. During shutdown, the refrigerant will migrate from the system back to the compressor and deposit in the lubricant.

03/11/2025

Can Power Surge Damage Refrigerator?

Power surge, also called transient overcurrent, is a short-term current and voltage fluctuation in the circuit, which usually lasts about one millionth of a second in the circuit.

08/28/2020

How to avoid microorganisms in compressed air

Did you know that microorganisms thrive in humid environments, and humid environments can be created by compressing the atmosphere? This means that in the food and beverage industries,

09/03/2020

How much do you know about the precautions of the operation control system of the air separation plant

The air separation unit adopts cryogenic technology, which uses the different boiling points of oxygen and nitrogen gas at the same pressure to achieve gas separation and extract oxygen,