SIEMENS Extension Module 6SL3121-2TE21-0AA4

08/11/2020

Correct adjustment method of opening degree of thermal expansion valve

The expansion valve is one of the four major components of the refrigeration system. It is an important device for regulating and controlling the flow and pressure of the refrigerant entering the evaporator, and it is also the "boundary line" between the high and low pressure sides.

06/29/2020

How the compressor works

09/15/2020

Large collection of air compressor brands

1. Atlas Copco Atlas, Copco (hereinafter referred to as AC) AC is a multinational group, headquartered in Sweden, the air compressor manufacturer is just a subordinate group. Due to years of continuous acquisitions, AC can produce almost all kinds of air compressors, which is quite famous. It has the highest share in the world.

08/25/2020

Can the bus and subway have air-conditioning Shanghai expert It can be used normally, and it must be ventilated and clean

On the afternoon of May 8, Wu Huanyu, director and chief physician of the Shanghai Center for Disease Control and Prevention, said that as the temperature gradually rises, the city's commercial buildings, large shopping malls

08/04/2020

How much should the temperature on the refrigerator be set What can be done to ensure cooling and power saving at the same time

There are two ways to set the temperature of the refrigerator, I will talk about them separately. Generally divided into 5 gears (1~5) or 7 gears (1~7), and some even more.

08/20/2020

How much power does the air conditioner save most

With the advent of the dog days, T-shirts and long skirts have been unable to meet people's needs for cooling off, so various cooling measures have been taken. Air conditioners are naturally the first choice to cool off the heat.

09/07/2020

Ten most commonly used parameters of frequency converters

There are many function parameters of the frequency converter, generally there are dozens or even hundreds of parameters for users to choose. In actual applications, it is not necessary to set and debug each parameter, most of which just need to use the factory settings.

01/31/2025

Which Way Do Computer Fans Blow: 3 Seconds to Distinguish the Air Inlet and Outlet

The chassis fan is one of the very important accessories in the computer. It can effectively cool down the temperature, help the computer to dissipate heat and improve the stability of the entire system.

08/24/2020

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

1. Failure display and phenomenon: 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:

08/08/2020

How do you see the power of the air conditioner Air conditioning horse number and area

How do you see the power of the air conditioner Air conditioning horse number and area We may initially know the power of the air conditioner, but in fact, we don't know much about the specific meaning of the power of the air conditioner.