How to identify new and old compressors for industrial chillers
Now is the replacement season of industrial chillers. In the face of the market's dazzling array of industrial chiller equipment, it is difficult for people to choose the right chiller. The use of chillers know that the most important thing for industrial chillers is the refrigeration compressor. When we buy the chiller, how can we judge the old and new problems of the compressor? Today, Xiaobian introduces how to identify New and old compressors for industrial chillers.
Ways to identify new and old compressors for industrial chillers:
First, look at the use of the compressor
If you buy a chiller, please feel the odor of the machine when you test it. Is it very strong or use the open flame to test whether the vent is discolored (the light of the lighter should be yellow), the discoloration has been used, and it has been filled with fluorine. Even if it is cleaned with gasoline, it will not wash the used traces. Buy back more than 2 sets of the same chiller, use the meter to measure the winding resistance of the compressor, if it is a new machine must be consistent winding value.
Second, check the refrigeration system of the chiller. The most basic analysis of the refrigeration system is as follows:
1. High and low pressure (compression ratio); 2. Cold coal charge; 3. Operating current; 4. Compressor superheat.
If there is one deviation of the above four items, the compressor loss will be caused. If you are using the original brand new machine, the operation can do the above, you can guarantee that your machine will be used normally for several years.
Third, according to the compressor warranty terms, the original compressor is basically open cylinder testing warranty.
Generally, the brand new machine joint venture brand compressors are not guaranteed in the market. If the warranty price is definitely higher than normal more than 1 times. There are very few brands with unconditional warranty on the market. Many users do not have professional knowledge, the chiller has a little problem, and the machine is required to return the repair. Although this kind of warranty method is convenient for many users who will not operate, it also brings value damage to many users. It is very likely that when buying a new product, a poor quality rework machine will be purchased, resulting in a brand discount and a decline in quality.