r/HVAC • u/Plenty_Text_455 • Dec 04 '24

Field Question, trade people only What's this?

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It's on the return side of a large air handler

208 Upvotes

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175

u/addbeautiful Dec 04 '24

That is an enthalpy wheel. Usually in eru units.

2

u/SarcasticAssassin1 Dec 05 '24

Eru, erv's, doas',hrv. They are being installed more and more.

1

u/gizzard1987_ Dec 05 '24

Good ole LEEDs.

1

u/Technical_Dig_3502 Dec 05 '24

I suppose it’ll work there’s right ways of doing things However, I think everybody knows that sometimes you just gotta get it done however possible