Danfoss Compressor SM185T9CBQ

08/07/2020

Knowledge points of HVAC cold and heat source design

1.The design position of the pump in the system: Generally speaking, the chilled water pump should be located at the front end of the chiller, and the chilled water coming back from the end is pumped back to the chiller through the chilled water pump;

03/13/2021

Working principle of servo drive

At present, most servo drivers use digital signal processor (DSP) as the control core, which can achieve more complex control algorithm, digitalization, networking and intellectualization. The drive circuit based on intelligent power module (IPM) is widely used in power devices.

09/16/2020

Air compressor sharing air storage method

When multiple pneumatic tools are used at the same time, multiple air compressors need to be used for combined air supply. In order to reduce the pulsation of the air supply pressure and prevent the air pressure from falling instantaneously when multiple pneumatic tools are started at the same time on the working surface

06/14/2020

Overhaul of industrial refrigeration semi-closed and fully enclosed refrigeration screw compressors

Overhaul of industrial refrigeration semi-closed, fully enclosed refrigeration screw compressors, the difference between fully enclosed and semi-sealed refrigeration compressors

01/13/2021

Judgement method of refrigerator solenoid valve is good or bad

(1)Use a multimeter to detect the resistance of the solenoid valve coil is about 2K or more (the resistance value is different according to the requirements of each refrigerator manufacturer); (2)Use a multimeter to detect the pulse voltage. You can adju器2䀀
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09/07/2020

Dry air compressor sales, please keep these seven words in mind!

【move】 　　 Work does not raise idlers, and the team does not raise idlers. 　　Go every day, not afraid of thousands of miles; 　　 Do it often, not afraid of everything.

06/29/2020

Several causes of compressor burning

06/22/2020

What's wrong with air conditioning and cooling

1.The air conditioner lacks freon. Under such circumstances, the air conditioner cooling effect will be poor. 2. If there is a lot of dust and dirt in the filter, it will affect the heat dissipation effect, which will affect the cooling. 3. The outdoor temperature is too high, and it is difficult to lower the temperature by turning on the air conditioner at home. 4. Voltage problem, the power supply voltage of normal air conditioner is 220V, but if it is lower than 220V, the cooling effect will be greatly affected. Summer is coming soon, and the weather is getting hotter. But if the cooling effect of the air conditioner is not good after turning on, what is going on? Is there any good solution? <img src="{{media url=&quot;magefan_blog/What_s_wrong_with_air_conditioning_and_cooling.jpg&quot;}}" alt="" />

08/18/2020

Precautions for the selection of fan coils for large central air conditioners

The fan coil unit is an important component in a large central air-conditioning system. Its selection will directly affect our usage, such as cooling effect, power consumption, noise impact, etc.

09/05/2020

What is the viscosity index requirement of air compressor oil how to choose

Air compressor oil has a good lubricating effect, which can not only improve the efficiency of air compressors, but also reduce the failure rate and reduce maintenance costs.