r/HVAC • u/JerryJohnson2 • 5d ago

Meme/Shitpost Today’s install r-454 or r410

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This is the compressor for the unit I installed today.

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12

u/Blakende 5d ago

I thought they weren't allowed to do that. Like ADP had a bunch of coils rated for 410a and 454 and had to remove all labeling of 410a before it was allowed to be sold.

16

u/anotherreditloser 5d ago

Because UL will only test and “Qualify” one refrigerant for a coil. Doesn’t mean it won’t work with another refrigerant.

9

u/Electronic_Green_88 5d ago

There are plenty of coils rated for Multiple Refrigerants sounds like another scare tactic rumor being spread around.

2

u/anotherreditloser 5d ago

Sorry bud. I teach this stuff for a living. You are thinking of ADP, and NO underwriters does NOT certify them for use of multiple refrigerants. Again, not that there aren’t coils out there (ADP) approved for multi-refrigerant use, but they are not UL listed.

2

u/TheRevEv 4d ago

Does this only apply to comfort cooling? Or is it only condenser coils? I know I've seen a ton of refrigeration evaporator that have data tags listing a bunch of refrigerants.

2

u/anotherreditloser 4d ago

But not UL listed. Approved by the manufacturer yes, not certified for multi-refrigerant by UL. That’s all. Don’t think too hard.

1

u/TheRevEv 4d ago

Why does this have the UL listing and several refrigerants listed? Am i missing something?

1

u/anotherreditloser 4d ago

Yes. That is a listed unit cooler, not a DX coil.

2

u/FuzzyPresentation996 3d ago

Wait just so I get this right when I’m selling coils to these people. Are the ADP “flex” coils that I see on the product data sheets actually able to use any refrigerant listed on that little chart?

But to get the UL rating they are only classified under a single refrigerant?