Preventing Refrigerant Huffing
Cases of refrigerant huffing have been increasing around the country as youth have learned of the potential high from inhaling air conditioning refrigerants. Preventing huffing deaths (as well as HVAC system damage) through the use of locking caps on refrigerant access ports has been addressed in the International Mechanical Code since 2009, but state adoptions of this code provision have been lagging. 2015 International and Uniform Mechanical Codes will place the liability for placing locking caps on refrigerant access ports on the last technician to touch the system.
In a seminar presented at the 2014 HVACR & Mechanical Conference for Education Professionals by James Bowman, national technical manager, HVACR, RectorSeal Corporation, emphasized the importance of using locking caps such as NOVENT™ or GasGuard™ which require proprietary tools to open the locking mechanisms.
Learn more about refrigerant huffing here.