R-502, and Fundamental electrical troubleshooting book pdf-503 manufactured by The Chemours Company. The term “freon” is a common descriptor or proprietary eponym like “coke,” “xerox,” or “kleenex.
In 1928, they improved the synthesis of CFCs and demonstrated their usefulness for such a purpose and their stability and nontoxicity. They are no longer used in aerosols, but to date no suitable, general use alternatives to the halocarbons have been found for refrigeration that are not flammable or toxic, problems the original Freon was devised to avoid. According to their material safety data sheets, CFCs and HCFCs are colourless, volatile, toxic liquids and gases with a faintly sweet ethereal odour. Vapours displace air and can cause asphyxiation in confined spaces. Chichester, England: John Wiley and Sons. United Nations Environment Programme – Ozone Secretariat.
Angie’s List-What is a fair price for R22? This page was last edited on 28 December 2017, at 01:11. Please forward this error screen to 69. A good HVAC book can provide a detailed and colorful view of HVAC technology.
An HVAC book or HVAC textbook will be a constant companion when you start your HVAC training. Thanks to the different technical fields involved in our trade, the variety of material we need to be familiar with fills up some pretty hefty textbooks. These textbooks contain a lot of information that we technicians can forget over time, and I found myself re-learning some basic material when I had to review a textbook to prepare for a class I taught at the local community college. I own a few HVAC textbooks and manuals, and I’ll review some of them on this page. It describes the Marine Refrigeration Manual we have available in pdf format, and explains how to access it on-line at your convenience.