Holip VFD Frequency Converter HLPNV0D743B

08/16/2020

What is the structure of the fan coil

The fan coils we usually touch mainly include horizontal concealed fan coils, horizontal surface mounted fan coils, vertical surface mounted fan coils, vertical concealed fan coils, and other methods.

05/22/2025

How to Check and Replace Refrigerator Compressor Relay

If your refrigerator has been in use for some time, there may be some faults with the compressor. To troubleshoot the compressor, check whether there is abnormal noise or overheating phenomenon in the relay.

07/15/2025

Is It Necessary to Replace Your Refrigerator Compressor?

The compressor is like the heart of humans, which plays a vital role in the refrigerator. A compressor is key to improve the performance of your refrigerator.

09/10/2020

The latest overview of wind power blade industry

Because the technical threshold of the blade manufacturing industry is not high, most latecomers buy licenses from abroad and can form production capacity within half a year. In order to seize market share, these companies can only rely on price wars to compete viciously.

08/20/2020

Why does refrigerating oil deteriorate How to judge whether the refrigerant oil has deteriorated

How to choose refrigerating oil 1.Why does refrigerating oil deteriorate? First of all, we must be clear why the refrigeration oil deteriorates.

09/06/2020

Do you really understand adsorption dryers

All atmospheric air contains water vapor: higher in high temperature, lower in low temperature. When air is compressed, the density of water vapor also increases. In order to avoid the interference of condensate in the pipes and connected equipment,

07/15/2020

About the built-in pressure relief valve (IPR valve) of Copeland compressors

About the built-in pressure relief valve (IPR valve) of Copeland compressors Among the built-in protection devices of Copeland compressors ZB15-ZB48, ZF06-ZF25, there is a small pressure protection device called built-in pressure relief valve (IPR valve). Below we briefly talk about the work of the built-in pressure relief valve.

06/29/2020

How the compressor works

06/22/2020

What to do if the air conditioner is not cooling

Air conditioning does not refrigerate mainly from the following aspects to solve: 1, regular cleaning and maintenance of air-conditioning outside machine. 2. Replace the old air conditioner that has exceeded the service life. 3. Check whether the copper pipes of the indoor and outdoor units of the air conditioner are too long. 4. Check whether the power of the air conditioner matches the indoor space. 5. Check whether the installation environment of the air conditioner is suitable. 6. Replenish refrigerant. <img src="{{media url=&quot;magefan_blog/What_to_do_if_the_air_conditioner_is_not_cooling.jpg&quot;}}" alt="" />

06/26/2020

Compressor starting circuit diagram

[Introduction] Compressor startup circuit diagram. Refrigerators, air conditioners and other appliances, the compressor is driven by a single-phase induction motor. When starting, the induction motor must overcome both its own inertia and high-pressure refrigeration