InterNACHI®️ Forum

2nd floor radiant heat access panel

Specific Inspection Topics Inspecting HVAC Systems

jdeoliveira2 (John Paul de Oliveira, GB-2 #86934 / AB #44580) July 10, 2014, 5:23pm #1

I don’t know what those vials on top are. Any ideas?

mlarson (Michael Larson, WI Lic. # 1672-106) July 10, 2014, 5:26pm #2

Flow rate in each loop.

jdeoliveira2 (John Paul de Oliveira, GB-2 #86934 / AB #44580) July 10, 2014, 10:29pm #3

Thanks Mike. I assume they are to adjust temperatures more accurately. Didn’t see writing on vials till I opened my own pictures.