Type: Posts; User: TobinB
Furnace & control are Lennox so this makes a lot of sense. It was installed about 5 years ago which also fits with your experience.
That's what I thought. I've talked to two other contractors in the Boston area and neither of them has seen anything like this. Any ideas on how to find a contractor who does know this system? Thanks!
I have unusual spring-open dampers that use a length of notched plastic ribbon that winds around a spool where the damper motor (a Synchron) connects (see pic). Each damper blade has its own return...