INVT VFD Frequency Converter GD200A-022G/030P-4

08/20/2020

The air conditioner doesn’t cool right after I bought it. I bought a fake brand.

Summer is here, and the sales season for air conditioners is also coming. However, recently some citizens have bought "fake air conditioners." Obviously it is a new product of the well-known brand Midea, why does it stop cooling after just a few days of purchase?

09/08/2020

Development of oil-free air compressor

With the wide application of oil-free air compressors, there are many types of equipment on the market, and the quality is mixed. This has caused some trouble for consumers to choose. To help you choose, today okmarts.com editor will give you Introduce the purchase of oil-free air compressors.

01/15/2021

Danfoss extends its Turbocor® training and support resources with 12 new e-lessons

Danfoss has released new online training materials for technicians working with its Turbocor® oil-free compressors—further extending the support and learning resources to help users and OEMs maintain long-lasting performance.

06/14/2020

Electronic expansion valve

Electronic expansion valve The electronic expansion valve is a speed type and is used in an intelligently controlled inverter air conditioner. The advantages of the electronic expansion valve are: large flow adjustment range; high control accuracy; suita器2䀀
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08/08/2020

The design points of capillary refrigeration system

The design points of capillary refrigeration system 1. On the high-pressure side of the refrigeration system, do not install a liquid reservoir, and try to reduce its effective volume on the premise that the condenser can contain all the refrigerant.

03/14/2021

Function of servo drive

Regeneration and dynamic braking function; Instant power down protection function for quick shutdown;

09/10/2020

Summary of features and failures of scroll compressors Deep analysis

The scroll compressor is a positive displacement compressor, and multiple compression chambers are formed by the meshing of the scroll rotor and the scroll stator. With the translation and rotation of the vortex rotator, the volume of each compression chamber continuously changes to achieve gas inhalation and compression.

08/15/2020

Is the filter of the refrigerator clean or replaced

What is the filter of the refrigerator? Regardless of whether the refrigerator is air-cooled or water-cooled, there is actually a filter. The filter is generally used together with a desiccant, called a drier. What is the function of the filter?

11/25/2021

As 5G is on the Way, Do You Really Understand the Use of HMI?

What is HMI (Human Machine Interface)? This era is smart and full with information. We have already been placed in the age of smart technology and filled with all kinds of new devices and inventions every day.

07/07/2020

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