Siemens Circuit Breaker 5SJ3032-7CR

09/22/2020

The development history of single screw machine

1. The history and current situation of single screw compressor 　　 In 1960, France's B. Zimmern proposed the idea of ​​a single screw compressor and obtained a patent. In 1962, the first prototype was trial-produced, and it was officially produced and put on the market by Peugeot in the early 1970s.

08/15/2020

How to control the heat dissipation problem when the air conditioner in the computer room is turned off

Most buildings will be equipped with air-conditioning or air-conditioning systems already installed. For companies that rent office areas, it is difficult for the building to provide a complete computer room.

06/14/2020

Nine refrigerant leakage parts and solutions

There are many welding ports on the left and right sides of the evaporator, and there may be more leakage points. The leakage of the newly installed air conditioner is mainly due to the poor welding technology of the employees of the air conditioner prod器2䀀
ￜ皥
䖒皦즠Ʋ煔क़㲈Ʋ
䌁皦
ᮔDž༬皧煞क़Ѐ呄ᠾ鹨់༹皧
ࠄ
00령ꐱ댁珵뛐珵Љ
䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ
瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥
ب巠皱㙲皦忈皱੨皦柘皱
즠Ʋǜ勁皦즠ƲبǜV /펔B䌁皦
ᮔDž

08/14/2020

Matters needing attention in the installation of household central air conditioning

Problems that should be paid attention to when using central air conditioning 　　 1. Concealed engineering acceptance 　　Household central air-conditioning should be installed before the indoor decoration,

09/07/2020

The role of the frequency converter on the air compressor

The frequency converter is a very important controller on the air compressor. The use of the frequency converter in the air compressor system is precisely to make the air compressor system

07/07/2020

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

08/04/2025

What is Vapour Compression Refrigeration System?

Vapour compression refrigeration system (VCRS) is the most common cooling system used in modern refrigeration technology.

08/07/2020

Working principle of frequency converter

　Inverters can be divided into voltage type and current type inverters.<br></br> 　　 Voltage type is an inverter that converts the DC of a voltage source to AC. The filtering of the DC loop is a current type that converts the DC of the current source to AŒ

08/14/2020

How to deal with the leakage of refrigerant in the battery test box

The battery test chamber is cooled by an air-cooled compressor. Its working principle is the same as that of air-conditioning. In the refrigeration process, a refrigerant is used for cooling.

08/18/2020

Refrigeration system purge and clean up after installation

When the refrigeration system is installed, the system should be purged and cleaned first, because the refrigeration process is completed in a closed and clean system.