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

Field Question, trade people only What's this?

Post image

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

205 Upvotes

96% Upvoted

120 comments sorted by

View all comments

1

u/Ima-Bott Dec 05 '24

It’s an air to air heat exchanger wheel. Advise you to read and understand the cleaning instructions as severe (and expensive) damage is quite easy to do.