跳至主要内容

How to do daily maintenance for air-cooled chillers | Hstarschiller.com

 Air-cooled chillers, as a kind of more efficient refrigeration equipment in chiller products, are widely used in the domestic industrial market and become necessary equipment for many industrial production.

​

chiller product



At the same time, although the air-cooled chiller is equipped with multiple protection devices, these are all to prevent the failure from directly damaging the unit. If the company wants to ensure that the air-cooled chiller has high cooling efficiency and long service life, it must remember to do regular maintenance. So, how should the normal safety maintenance and testing of air-cooled chillers be carried out?


1) Check the stability of voltage and current

When the air-cooled chiller works normally, the voltage is 380V (the voltage of DYJ-01A～DYJ-02A is 220V, and the voltage of other regions abroad also has 410V, etc.), and the current is normal within the range of 11A-15A;


2) Check the compressor regularly

The compressor is the "heart" of the chiller, and its quality directly affects the stability of the chiller. The necessary acceptance test for the chiller should be carried out in accordance with the principles of air tightness test first, vacuum test second, sub-item test first, and complete machine test second.


3) Regular cleaning

In addition to checking the technical performance of the chiller, it is also necessary to protect the clean appearance of the chiller and the cleanliness of the work site. When the air-cooled chiller is running for 6 months, the entire system, such as pipes, filters, condensers, fans, etc., must be cleaned, especially the fans. Like our commonly used fans, dust will affect heat dissipation, so the cooling efficiency will directly lower.


4) Check the meter regularly

The temperature control meter is out of control. Replace the temperature control meter. High pressure failure. Poor heat dissipation, too dirty radiator, bad air to clean the radiator, improve the ventilation conditions. , Replace the high-pressure engine.


5) Regularly check whether the refrigerant has decreased

Judge according to the high and low pressure gauge values on the front of the air-cooled chiller. When the chiller is operating normally, the high pressure is 11-17kg, and the low pressure is 3-5kg. In shutdown state, both high pressure and low pressure are around 0.6kg.


The high-efficiency refrigeration function of air-cooled chillers is inseparable from the daily maintenance and safety inspection of the products. Therefore, it is very important to check the operation of air-cooled chillers. In addition to the main inspections above, it is also necessary to check the oil level and oil temperature of each compressor, check the main power supply voltage and current, and check whether the set value of the chilled water supply temperature is appropriate. If there is a problem, make changes in time.




H.Stars has been a HVACR manufacturer for more than 26 years. Customized high efficient chiller / heat pump provide -50℃ to 90℃ solution to the customer. If you are interested in our air-cooled chillers, you can contact us. Email: maychow@hstars.com.cn



标签：

评论

发表评论

此博客中的热门博文

Avoid Downtime, Cut Costs: Smart Maintenance for Smarter Chillers

  Screw water-cooled chillers   typically operate around 3,000 hours per year, depending on China's climate and geographical conditions. Regular and scientific maintenance is crucial to ensure long-term, reliable operation, extend the lifespan, and reduce operating costs. Maintenance and Upkeep Preventive maintenance during operation and inspection involves creating annual and monthly maintenance plans based on actual operating conditions. Shutdown Procedures In winter, clean and dry the unit. Open the drain valve to empty the  shell-and-tube heat exchanger  to avoid freezing. The shutdown sequence is: chiller off - cooling tower fan off - cooling water pump off - chilled water pump off. Special attention to anti-freezing: 1. Drain the evaporator and condenser if the unit is outdoors below 0°C during standby. 2. Interlock the water flow switch with the unit to prevent freezing when the chilled water flow switch malfunctions. 3. Ensure water in the evaporator is flowi...
发表评论
阅读全文

What Are the Key Requirements for Flooded-Type Heat Exchangers in Air Suspension Chillers

  Air suspension chillers   are crucial in many industrial and commercial applications, and the flooded-type heat exchanger is one of the most important components of these systems. Understanding the requirements of the heat exchanger is essential to ensuring the air suspension units operate efficiently and remain stable. A flooded-type heat exchanger works by transferring heat between two fluids with different temperatures. In air suspension chillers, it helps regulate temperature, optimize energy use, and improve overall performance. For instance, it can transfer heat from high-temperature gases to low-temperature liquids, or vice versa. 1. Material Requirements 1.1 Corrosion Resistance In many industrial environments, fluids can be corrosive. For example, they may come into contact with acidic or alkaline substances. To withstand these conditions, the heat exchanger’s tubes and casing need to be made from corrosion-resistant materials, such as stainless steel. Stainless ste...
发表评论
阅读全文

Hotels Go Green: Heat Recovery Chillers Cut Costs and Carbon Footprints

  In the operation of hotels, energy costs are a significant factor that cannot be overlooked. The advent of   heat recovery chillers   offers an efficient and energy-saving solution for hotels. ​ A heat recovery chiller, in simple terms, not only performs cooling tasks but also effectively recovers heat. For hotels, this is a highly practical feature. Traditional chillers only accomplish cooling, wasting the heat generated. However, heat recovery chillers are different; they can convert the otherwise wasted heat into usable hot water. In principle, during the cooling cycle of a chiller, the refrigerant releases heat. Heat recovery chillers use special devices to collect this heat, and through a series of heat exchange processes, they can produce hot water. This hot water can be used in various scenarios within the hotel. For example, it can supply water for guest rooms' washing and brushing, provide hot water for the hotel's restaurant kitchen, and even be used for heati...
发表评论
阅读全文