No secondary drain line? Float switch installed

bcawhern1 (Brian Cawhern, CMI) February 7, 2023, 9:23pm 10

I am not sure what that is.

I know of this

And this:

Topic		Replies	Views
Primary and secondary drain lines connected? Inspecting HVAC Systems	10	5573	February 3, 2020
Attic furnace with abandoned secondary drain/overflow pan with float switch on primary cond. line Inspecting HVAC Systems	8	976	July 12, 2021
HVAC Condenate Line Question Inspecting HVAC Systems	6	915	April 8, 2016
No secondary (pan) drain in Attic Okay per builder Inspecting HVAC Systems	14	13000	January 30, 2009
No Aux drain? Inspecting HVAC Systems	7	4944	August 19, 2006