Here is nice explanation:
Updated 28-09-2013 at 08:10 AM by nike123
Originally Posted by nike123 There are three distinct design differences between and R-22 and R-410A compressor: Different Oil: Because mineral oil, normally used in R-22 compressors, is not miscible with HFC refrigerants such as R-410A, Copeland uses a synthetic Polyol Ester Oil (POE) in R-410A approved compressors.Reduced Compressor Displacement: A pound of R-410A has approximately the same heat carrying capacity relationship to R-22 as R-22 has to R-12, therefore, the compressor displacement has to be reduced ...
Why should I start a blog and beging "blogging"? As a professional, the answer is obvious, its a way to create a "live" resume that you can use to showcase you and your engineering tallent. The top 10 reasons to Blog? 1. To Express Your Thoughts and Opinions You have something to say, and blogs provide a place to say it and be heard. 2. To Market or Promote Something Blogging is a great way to help market or promote ...
A blog (a blend of the term web log)[1] is a type of website or part of a website supposed to be updated with new content from time to time. Blogs are usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. Blog can also be used as a verb, meaning to maintain or add content to a blog. Although not a must, most good quality blogs are interactive, ...