it's not surprising that those who will be handling or teaching about -- these new products have lot of questions.
The recently held HVAC Excellence National HVACR Education Conference served to provide responses, through number of comprehensive seminars and Q&A sessions designed to educate attendees about the new refrigerants..
Jason While some people may be worried that these refrigerants will blow up, out that most of us get up in the morning and drive to work or the grocery store and then we stop at station and pump 20 gallons of A3 into moving target.
Jason LFL stands for flammability limit, and it's the concentration of in this case refrigerant that is capable of ignition when there is mixture of air and the substance.
Jason The area of concern seems to be if ignition of refrigerant leak could happen during the operation of A2L unit.
The area of concern is the potential for ignition during service, and for that matter -- that wo not happen.
That active mitigation could be initiating pump down to trap the refrigerant outside in the condenser or turning on the motor to move some air through the space.
The space must be large enough and have enough air to keep the refrigerant charge at or below percentage of LFL should the entire charge leak into the space.
You may need to shorten the line set move the closer to the evaporator or look for unit -- and you ca not exceed the maximum allowable charge for the system..
A3s such and because A2Ls are HFOs, they are not.
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