What are the precautions when choosing an industrial chiller?
An industrial chiller is a refrigeration device that assembles a refrigerator, condenser, evaporator, expansion valve, control system, and switch box on a common base or frame. According to the heat removal method of the unit, it can be divided into water-cooled and air-cooled chillers. The latter adopts heat pump circulation and is welcomed by users. After fully considering the above factors, when choosing a chiller, you should also pay attention to the following point:
1. Generally, 2 to 4 refrigeration units are appropriate, 2 for small and medium-sized systems, 3 for larger ones, and 4 for extra-large ones. The possibility of mutual backup and switching between units should be considered. Combination schemes with different types and capacities of units can be used in the same computer room to save energy. At least one unit with a higher degree of automation, better regulation performance, and high efficiency operation under partial load should be selected among the units operating in parallel.
2. The refrigeration coefficient COP of the electric-driven refrigerator is higher than the thermal coefficient. However, each type of unit has its own characteristics and uses its strengths.
3. For the cold source of a large centralized system, it is advisable to choose a chiller with compact structure, small footprint, and compressor, motor, condenser, evaporator and automatic control components assembled on the same frame. For small systems, direct evaporative compression condensing units should be used.
4. Use domestically produced units as much as possible. my country's refrigeration equipment industry has developed rapidly in the past decade, and most of the product performance is close to the international advanced level, especially the small and medium-sized chillers, which are completely comparable to imported products, and have unparalleled advantages in price. Therefore, under the same conditions, domestic chillers should be selected first.
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