Hermetic compressor vs. Semi Hermetic compressor
This is another free tip from JCY.
JCY has been getting a lot of inquires/questions regarding a better style compressor in there chiller.
Here is an example of the differences between hermetic and semi hermetic compressors-
Hermetic compressors are completely sealed housing, with its motor also sealed in same housing. It is leak proof but cannot be repaired.
JCY has personally seen them to only last between 2-3 years (very rare but sometimes 3+ years depending on application). These style compressors just don’t seem to hold up that well compared to semi hermetic compressors. These style compressors are classified in the refrigeration field as “throw away/cheap compressors”. There best application is for Air-conditioning.
Semi-Hermetic compressors are also housed with motor in the same housing but the casing is bolted type and can be repaired easily.
JCY has personally seen them to last between 3-10 years (rare but sometimes 10+ years depending on application). These styles of compressors are built for longevity, repairable and more reliable.
JCY uses semi-hermetic compressor 19 out of 20 times, in all of our units.
The life of a compressor is biased on its application, time it has been running, glycol used and so many other factors.
In the refrigeration world, you can see compressors lasting either a short period of time or long.
“These statements above are what JC Younger Company’s has personally seen since the 1970’s.”
Cheerz and thankz Sandy Y.
Brewery Department Manager.
Last edited by JC Younger; 05-30-2012 at 11:25 AM.
J.C. Younger Company
5626 WEST LAKE STREET
MINNEAPOLIS, MN 55416