Criditpid HVAC Furnace Transformer Replacement for Trane TRR01729 TRR1729, Packard PF42440, Supco SXT105, White-Rodgers 90-T40F3, Basler Electric C340041P05, Jard 4031F.

Needed a replacement for C340041P04 and couldn't find a solid answer online one way or the other, but the voltages all worked out so I gave it a shot. Works perfectly with no issues

Transformer easy to install. Central air cranking along great. Part replacement for Trane transformer.

I purchased 2 of these for overhead garage heaters and one of the outputs is labeled 24V and the other "OV". A little research revealed that the OV stood for Over Voltage but not sure what that ultimately meant. I asked two HVAC professionals about it and they have never seen such a thing on a furnace and recommended I not use. So needless to say I returned these transformers and order a transformer that was OEM for my heaters that had 2 output terminals labeled 24V.