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Schlee (China) Refrigerating Equipment Manufacturing Co.,Ltd

Add:Jupu Road, Pukou Development Zone, Nanjing City, Jiangsu Province, China

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Water Cooled Chiller Maintenance
- Sep 18, 2017 -

In the refrigeration industry is divided into two types of air-cooled chillers and water-cooled chillers, according to the compressor is divided into screw chillers and scroll chillers, in the temperature control is divided into low temperature industrial chillers and room temperature chiller , Room temperature unit temperature is generally controlled in the range of 0 degrees -35 degrees. Low temperature unit temperature control is generally 0 degrees to -100 degrees or so. Chillers, also known as: refrigerators, refrigeration units, ice water units, cooling equipment, etc., because the use of a wide range of industries, so the requirements of the chiller is not the same. And Rhithers. and Rhithers. Results Resultss. Rhithers. Verticals.ithers. Verticals.itherty outcome composition Us Results Decision Results Results Results (Rh 'and32' h 'Refs. Decisions.s.itherty' '' '' 'Rh'

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Chillers commonly known as refrigerators, refrigerators, ice machines, frozen water machines, coolers, etc., because the use of a wide range of industries, so the name also countless. With the continuous development of chillers industry more and more people began to pay attention to the chiller industry, any choice is more and more important for human beings, in the product structure "energy efficiency than water-cooled screw unit", "water source heat pump unit", " Screw-type heat recovery unit "," efficient heat pump unit "," screw-type low-temperature refrigeration unit "and other highly competitive product structure of its nature principle is a multi-functional machine, remove the liquid vapor by compression or heat absorption Type refrigeration cycle. The steam compression chillers consist of four main components of the vapor compression refrigeration cycle compressor, evaporator, condenser, part of the metering device in order to achieve the different refrigerant. The absorption chiller uses water as a refrigerant and relies on a strong affinity between the water and the lithium bromide solution to achieve a cooling effect. Chillers are generally used in air conditioning units and industrial cooling. In air conditioning systems, chilled water is usually distributed to the heat exchanger or coil in the air handling unit or other types of terminal equipment to cool in their respective spaces, and then the cooling water is redistributed back to the condenser to be cooled. In industrial applications, chilled water or other liquid cooling pumps are through process or laboratory equipment. Industrial chillers are used to control the products, mechanisms and factories of mechanical cooling of all walks of life. Chillers in the form of cooling can be divided into water-cooled and air-cooled, technically, water-cooled air-cooled energy efficiency ratio of 300 to 500 kcal / h; in the installation, water cooling to be included in the cooling tower can be used, Air cooling is mobile and requires no other assistance.


Chillers start and stop sequence to ensure that the air conditioning host to start after the normal operation, must ensure that:

① Condenser heat dissipation is good, otherwise it will be due to cold - coagulation temperature and the corresponding condensing pressure is too high, so that the cold water unit high voltage protection device action and stop, and even lead to failure.

② the cold water in the evaporator should be circulating, otherwise it will be due to cold water temperature is low, resulting in cold water temperature protection device action and stop, or because the evaporation temperature and the corresponding evaporation pressure is too low, is the chiller low voltage protection device action and stop Causing the cold water to freeze in the evaporator and damage the equipment. Therefore, the chiller unit boot sequence: (must strictly abide by) cooling tower fan open -> cooling water pump open -> cold water pump open -> chillers chillers shutdown sequence: (must strictly abide by) chiller Stop -> cooling tower fan stop -> cooling water pump stop -> cold water pump stop