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Guidelines of Installing Exhaust Duct to S&A Water Chiller 2018-11-07

We find some users install an exhaust duct on top of the chiller air outlet/cooling fan in order to avoid heat interference in the room.


However, the exhaust duct will increase the exhaust resistance of the chiller and reduce the exhaust air volume, resulting in heat accumulation in the duct and triggering high temperature alarm of the chiller.



So is it necessary to install an exhaust fan at the end of the exhaust duct?



The answer is depending on the actual situation.


If the exhaust duct is 1.2 times larger than the sectional area of the chiller fan, and the length of the duct is less than 0.8 meters, and there is no pressure difference between indoor and outdoor air,  it is not necessary  to install the exhaust fan.


Measure the maximum working current of the chiller before and after installation of the exhaust duct. If the working current increases, it indicates that the duct has a greater impact on the exhaust air volume. The exhaust fan should be installed, or the installed fan power is too low and needs to be replaced by a higher power fan.



Important Notice

The exhaust capacity of the exhaust fan should be bigger than the one of the cooling fan of the water chiller.

Please contact S&A after-sales service by dialing 400-600-2093 ext.2 to get the exhaust capacity of different chiller models.



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    Provide systematic products and customized service Products diversification and wide applications More than 90 chiller models to choose More than 120 chiller models available for customization Applicable to over 100 manufacturing and processing industries Cooling capacity ranging from 0.6kW to 30 kW Technology Advantage a. With 16 years development, gradually grow as the industry standard builder and quality guarantee. b. ±0.1℃ high precision temperature control, stable cooling performance, support ModBus-485 communication, which can realize the commnucation between the laser system and multiple water chillers to achieve two functions: monitoring the working status of the chillers and modifying the parameters of the chillers, constant temperature and intelligent temperature control modes. c. With excellent laboratory testing system, simulates actual working environment for chiller. Overall performance testing before delivery: aging test and complete performance test must be executed on each finished chiller. Product Advantage a. With 11 patent certificates and won Quality integrity Level A certificate; b. ISO 9001, CE, RoHS and REACH environmental certificated. c. Conforms to air transport requirements, energy saving and environment friendly. d. Offer customized service to fulfill various demands of customer. e. Independent production of sheet metal, evaporator and condenser,minmize risks of water and refrigerant leakage and improve quality.
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    18,000 square meters brand new industrial refrigeration system research center and production base. Strictly execute ISO production management system, using mass modularized standard produces, and standard parts rate up to 80% which are the source of quality stability. Annual production capacity of 60,000 units, focus on large, medium and small power chiller production and manufacture. S&A Chiller Quality Control System Purchasing Strictly control and manage supply chain Ensure that each component is compliant with using standard Pre-production control Full inspection on key components Aging test on key components Production assembly process Standardized implementation on technology Assemble the chillers in strict accordance with specific regulated manufacturing procedures. Before delivery Overall performance testing Aging test and complete performance test must be executed  on each finished chiller. Delivery Delivery on time Shorten the overall response cycle of customer's supply chain Customer service 2 years warranty Lifetime maintaince and repair 24/7 hotline service with quick response
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    THE WARRANTY IS 2 YEARS AND THE PRODUCT IS UNDERWRITTEN BY INSURANCE COMPANY.  S&A has established service points in Russia, Australia, Czech, Singapore, Korea and Taiwan.

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