Tom Raymond Posted March 8, 2009 Report Share Posted March 8, 2009 How common is it to see a furnace upside down? The data plate states 0" clearance to combustables on all sides and 1" at the top, is that the top as designed or as installed? Click to Enlarge 14.91 KB When they added the AC there wasn't enough clearance left in the crawl... Click to Enlarge 27.9 KB I can't tell for sure if the rust is from the coil or the condensate drain that was dumping on it. Tom Link to comment Share on other sites More sharing options...
hausdok Posted March 8, 2009 Report Share Posted March 8, 2009 Hi, Did you check the manual to see whether it can be installed that way? I've been doing a bunch of BDP units laterly that can be orieinted six different ways. ONE TEAM - ONE FIGHT!!! Mike Link to comment Share on other sites More sharing options...
Tom Raymond Posted March 8, 2009 Author Report Share Posted March 8, 2009 No manual on site. No service records either. The data plate on this unit was installed under (uhm, over?) the induction fan, making it a real PITA to read, even worse while lying on the floor looking up at it. I intend to call lenox to get their opinion but I thought I'd post it here first. I forced it through two cycles to make sure the diagnostic codes where the same, it's brain doesn't seem to mind being upside down. There is so much wrong with the ducting in the crawl it might be easier to run new in the attic and flip this thing over. Tom At least the filter was clean[] Link to comment Share on other sites More sharing options...
Terence McCann Posted March 8, 2009 Report Share Posted March 8, 2009 It's very common to see them installed upside down - the one in my condo is installed upside down. You change the position of the induced draft fan to accommodate. You just need to make sure the unit is a convertible type. This can be accomplished by getting the model number and checking. Link to comment Share on other sites More sharing options...
Tom Raymond Posted March 8, 2009 Author Report Share Posted March 8, 2009 Thanks guys. The model and serial where all I could read on the data plate, the rest of it was like a novella in tiny print. I tried to take pictures of it but I can't read those either. Lennox model G51MP-36B-070-01 serial 5803F 67829 I will be searching the lennox website and/or calling their tech dept. on this one. Right or wrong they still need a tech to fix the ducts, roached plenum, and condensate drain anyway. Tom Link to comment Share on other sites More sharing options...
Bill Kibbel Posted March 8, 2009 Report Share Posted March 8, 2009 I'm pretty sure you'll find that series of Lennox Elite furnaces can be installed for upflow, downflow and horizontal. Link to comment Share on other sites More sharing options...
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