General Information
Refer to R-1234yf Proper Service Procedures Warning .
R-1234yf (HFO-1234yf) - 2, 3, 3, 3 - Tetrafluoroprop-1-ene (CF3CFCH2), is an olefin containing hydrogen, fluorine and carbon with thermodynamic properties similar to R-134a. This refrigerant is a mildly flammable gas. It has a boiling point of -29.2°C, a vapor pressure of 583 kPa absolute at 20°C, no ozone depletion potential, and a global warming potential (GWP) of 4.
R-1234yf supply tank is white with red band to denote flammability.
In certain regions, technicians repairing or servicing motor vehicle air conditioning (MVAC) systems must be trained and certified by the appropriate regional or national regulatory agency.
- In the USA, refer to the EPA website for MVAC training requirements. http://www.epa.gov/ozone/title6/609/technicians/609certs.html
- In Canada, refer to the Environment Canada website for MVAC training requirements. http://www.ec.gc.ca/ozone/default.asp?lang=En&n=943E1CAB-1#ws4E6F6835
- In Europe, refer to Commission Regulation (EC) No 307/2008 for MVAC training requirements. http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2008:092:0025:0027:EN:PDF
MVAC service shops must certify to the EPA that they have acquired and are properly using approved refrigerant recovery equipment. Service shops must also verify (with on site documentation) that each person using the equipment has been properly trained and certified. MVAC service shops must maintain records of the names and addresses of facilities to which the refrigerant they recover is sent. (http://www.epa.gov/ozone/title6/609/technicians/appequip.html)
Vehicles equipped with R-1234yf refrigerant systems have unique low and high side service fittings.
The proper handling procedures should be followed for all refrigerants as designated by the refrigerant manufacturer's Material Safety Data Sheet (MSDS).