Siemens HMI 6AV6640-0AA00-0AX0

09/10/2020

Ice washing imitates air conditioner inverter wrestling or changes the industry pattern

nverter air conditioners have experienced more than ten years of difficult development in China and finally opened up in the Chinese market. "Inverter" has begun to win consumers' approval for its energy-saving and environmentally friendly features.

09/18/2020

Performance comparison between piston compressor and screw compressor

The noise of the piston engine is loud and the maintenance is inconvenient. Most piston machines often have problems during use, which brings great inconvenience to users. At the same time, it can reduce the production cost of the factory, increase economic benefits, facilitate equipment management

08/06/2020

Application and troubleshooting of fan coil and electric valve

As a terminal device of the central air conditioning system, the fan coil unit is widely used in residences, offices, hotels, hospitals and other places because of its compact structure, flexible layout, and easy independent control.

07/24/2020

Air conditioning system fault diagnosis guide (Part 1)

"Refrigeration system low pressure, high pressure value abnormal", "compressor shell temperature abnormality", "air inlet and outlet temperature difference value abnormal", "air conditioner outlet temperature is too high or low",

06/29/2020

What is the cause of compressor pipeline vibration

08/11/2020

Hello everyone, let me introduce to you, what does the standard central air conditioning budget list look like

The standard central air-conditioning budget is roughly composed of three parts: a configuration table, a specific quotation and a detailed list of auxiliary materials.

11/13/2021

Basics of Industrial Control System and the Use of PLC

The components of industrial control system (ICS) can be roughly divided into two categories according to their location: control center equipment and remote site equipment.

08/19/2020

Teach you how to understand the data meaning of the high and low pressure meters in the chiller

The general high and low pressure meter of chiller refers to the refrigerant pressure of the refrigeration system, which is mainly used to monitor the operation of the system and facilitate after-sales maintenance.

08/11/2020

How does the screw compressor match the refrigerating oil correctly

The role of the compressor in the refrigeration system is equivalent to the human heart. With the development of the market, screw compressors have gradually become the leader of refrigeration compressor products and are used in various cold chains

07/30/2020

Do you know all about the setting of fire damper in HVAC system?

In the HVAC design, there are many types of valves for fire prevention and smoke exhaust, and the valve settings are different for different applications.