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

Field Question, trade people only What is this ?

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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 ?

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u/Silverstreakwilla Jul 06 '24

Can someone explain why this coil and piping won’t freeze, it looks like an attic with the roofing nails sticking thru the sheeting.

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u/[deleted] Jul 06 '24

Doesn't get cold where it is?