MINDMAN Switch MCHX-20-80M

08/11/2020

The function and calculation method of air-conditioning ventilation static pressure box

1. What is a static pressure box?<br></br> 　　 Static pressure box, also known as plenum chamber, is a large space box connected to the air outlet. The flow velocity of the air flow in this space decreases to close to zero, the dynamic pressure is converted into static pressure

06/14/2020

Refrigeration unit in artificial environment simulation laboratory

The artificial environment simulation laboratory can simulate the temperature and humidity environment, as well as the climatic environment of rainfall, snowfall, sunshine, wind, sand and dust.

09/23/2025

AC Making Noise When off: Where is the Noise from and What to Do?

If you’ve ever heard your AC making noise when off, it can be a bit unnerving. You may wonder what's causing the noise and what you can do to fix the problem.

08/14/2020

What are the noteworthy issues in central air conditioning design

1. Variable air volume ratio 　　 The air-conditioning system runs under partial load conditions most of the year, that is to say, the fans, ducts and air volume of the end of the variable air volume system are mostly between the maximum and minimum air volume limits.

05/08/2025

Difference in 2 Pin, 3 Pin and 4 Pin Computer Fans: Which is better?

If a computer does not have a radiator, its internal temperature will be infinitely high, and eventually the hardware will be burned directly. Whether it is for the CPU, graphics card, chassis, or power supply, heat dissipation is required.

09/14/2020

Maintenance and maintenance of screw air compressor

1. Maintenance and maintenance of intake air filter element. The air filter is a component that filters air dust and dirt, and the filtered clean air enters the compression chamber of the screw rotor for compression. Because the internal clearance of the screw machine only allows particles within 15u to filter out.

07/07/2020

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

08/20/2020

Don’t panic when the refrigeration compressor stops suddenly

What should be paid attention to when the refrigeration compressor stops abnormally? Some friends may not understand well, let's take a look at the editor of okmarts.com today!

07/31/2020

HVAC people collect these data, better than ten years of work experience!

HVAC people, we know that the HVAC project contains more systems, the situation is complicated, and most of the pipelines are hidden in the tube wells, walls, and ceilings, so the design process is very complicated, but don’t worry, we can step on the predecessors’ Go forward on your shoulders!

05/24/2023

Why is My AC Compressor Not Turning on and What to Do?

The air conditioner compressor (AC compressor) is generally installed in the outdoor unit. When the air conditioner is running, the compressor sucks the refrigerant from the low-pressure area