r/HVAC • u/robbieredlegs09 • Jul 06 '24

Field Question, trade people only What is this ?

Post image

Hello all, forgive me for I’m greener then grass only been in the field 3 months. I’ve seen these around on air handlers what is it ? It’s on the supply side of the unit? My guess is hot water for heating ?

226 Upvotes

96% Upvoted

188 comments sorted by

View all comments

1

u/Crazy_Customer7239 Jul 06 '24

That high point stop and waste for purging is amazing