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How to choose the type of refrigerant for the chiller?
Sep 23 , 2021
The normal and safe operation of the chiller is inseparable from the refrigerant. It is the working medium that circulates in the chiller refrigeration system to achieve refrigeration. The commonly used refrigerant types for chillers are: R22, R407C, R404A, R410A, R134A, R507... Because R22 refrigerant is not environmentally friendly, most countries have now banned the use of R22. Therefore, for O...
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Why does the chiller evaporator freeze？
Oct 12 , 2021
During the use of the chiller, sometimes freezing occurs, and the chilled water malfunctions and alarms. The evaporator is one of the four core components of the chiller, and its importance is self-evident. Once it fails, the chiller will also go on strike. Today we will talk about the more common evaporator failures, namely Icing, to analyze the cause and find a solution. Why does the chiller fre...
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What are the types of chiller evaporators?
Oct 15 , 2021
The evaporator is one of the main components of industrial chillers. The types of evaporators include: tank with coil evaporator, shell and tube evaporator, stainless steel plate heat exchanger, titanium tube evaporator. With so many types of evaporators, how should we choose the appropriate type of evaporator for our chiller? Water tank coil evaporator: The evaporator is a coil type structure pla...
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How to deal with the high pressure failure of water cooled screw chiller
Oct 29 , 2021
Water cooled screw chiller is a water to water chiller which compressor use semi-hermetic screw type. It’s high efficient water chiller system. The cooling water system including a water cooled screw chiller, a cooling tower, a water tank, and 3 water pumps. Water cooled screw chiller is widely used in the industrial cooling system. High pressure failure of the water cooled screw chiller is the co...
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Ways and solutions of noise produced by chillers
Nov 19 , 2021
It is inevitable that the chiller will produce sound when it is working. For example, when the fan rotates, the fan blades rub against the air, it will produce sound. Normal sound is allowed. However, even the sophisticated refrigeration equipment will appear after a long period of use. Fault. Then, the editor of Oumal Chiller will take you to understand the causes and solutions of the noise produ...
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How to install the Air cooled water chiller ?
Nov 29 , 2021
Air-cooled chillers are the most widely used chillers. They are widely used in plastics, electronics, chemicals, metallurgy, video pharmacy, electroplating, leather, crafts and scientific research in industry; they are widely used in hotels in business., Hotels, supermarkets and theaters. Air-cooled chillers are also the easiest chillers to install. Since the entire system of air-cooled water chil...
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What causes the high-pressure failure of your water chiller machine? How to solve it?
Dec 22 , 2021
The high-pressure failure of the chiller means that the compressor discharge pressure is too high, which causes the high-pressure protection relay to operate. The compressor discharge pressure reflects the condensing pressure, the normal value should be 1.4~1.8MPa, and the protection value setting is recommended not to exceed 2.0MPa. Because the long-term pressure is too high, it will cause the co...
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What are the differences between air-cooled chillers and water-cooled chillers
Jan 06 , 2022
We all know that according to different heat dissipation methods, chillers can be divided into air-cooled chillers and water-cooled chillers. What is the difference between air-cooled chillers and water-cooled chillers? 1. The air-cooled chiller uses copper tubes and aluminum fins to dissipate heat from the condenser. A fan is required to blow the outdoor air through the heat exchange fins and tak...
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Reasons and solutions for the internal protection of screw compressors | Oumalchiller.com
Feb 15 , 2022
The compressor is the heart of the chiller, and the normal operation of the compressor is the basis for the normal operation of the chiller. Therefore, if we want to understand the chiller, we must first understand the compressor. Today we will talk about the reasons for the internal protection of the semi-hermetic screw compressor. There is a thermal switch inside the screw compressor. The functi...
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