Fuji VFD Frequency Converter FRN450F1E-4A521

08/05/2020

What are the common faults of the cut-off foot of the chiller and the adjustment cabinet

1. The valve body of the valve of the chiller is mostly steel castings. Casting blisters may be formed during the production process, causing the valve to leak refrigerant during use.

08/08/2020

Precautions for high-pressure cleaning shell and tube condenser

1. The main medium of the high-pressure cleaning shell and tube condenser is water. The water must be filtered before use to prevent impurities in the water from clogging the water pipe during cleaning

06/29/2020

Several causes of compressor burning

08/16/2020

The old method of repair and maintenance of screw chiller

With the development of economy and the improvement of production process requirements, screw chillers have become an important aspect of most enterprises’ production cooling needs.

06/14/2020

Popularly speaking, what is the difference between heating 24℃ and cooling 24℃

Popularly speaking, what is the difference between heating 24℃ and cooling 24℃ Everyday use of air conditioners must have this experience: in the summer, the air conditioner is used for cooling. Setting the temperature to 24°C makes the room very cool, a器2䀀
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08/16/2020

How to correctly remove ammonia refrigerant during refrigeration machine maintenance

In the process of maintenance of the refrigerator, if there is a fault in the system components from the compressor exhaust shut-off valve to the accumulator outlet valve, it needs to be disassembled and repaired.

06/14/2020

Judgment and common sense of fluoride deficiency in central air conditioning

The amount of fluoride added to large central air conditioners is generally more, and there are more types of refrigerants. The specific amount can be added according to the label on the nameplate. It is necessary to grasp the amount.

09/05/2020

The problem of motor inefficiency

The test standards promulgated by the International Electrotechnical Commission IEC (hereinafter referred to as IEC) make it possible to evaluate the energy efficiency of motors.

07/15/2020

ZP49KSE-TF74.1 horsepower 60Hz (R410A) air conditioner Emerson Copeland compressor

Today I want to introduce the Emerson Copeland compressor ZP49KSE-TF7, which is suitable for R410A refrigerant at 60Hz three-phase electric air conditioner. The power given in the manual of Emerson Copeland Scroll Air Conditioner Compressor is 4.1 hp. Other technical parameters can be downloaded from our company's website to download the product manual.

06/14/2020

Commercial central air-conditioning and industrial refrigeration industries are downstream industries of screw refrigeration compressors

Chinese air compressor market has the largest proportion of piston air compressors Chinese air compressors started in the late 1950s and were established and developed after the founding of New China (1949). After roughly digesting and absorbing the prodﰸ2䀀
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