Trane HVAC
sclancy
11 years ago
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We have a Trane system installed in our new house by the builder/HVAC contractor. I have gotten conflicting info from the HVAC contractor.
We have 2 independent zones each with gas heat/ac.
Lower zone is an XR95 heater and is mechanically split between 1st flr and basement although the mechanical dampers on the 2 air trunks are not split between basement and 1st floor - each branch has basement and 1st floor registers on it. It is controlled with a basic Honeywell nonprogrammable thermostat.
The upper zone is electronically split into 3 subzones (electronic dampers) and is controlled by a ComfortLinkII thermostat. The upper zone works perfectly and the 3 subzones ensure that the 2d and 3rd floors are temperature balanced.
My questions and confusion are:
1. What programmable thermostat (Trane or otherwise) can I use to get control over the 4 fan speeds on the lower zone? (I love fan speed control of the comfortlink II and the ability to program recirculate for part of every hour)
2. Was/Is Trane offering this year in zip 23059 free comfortlink II thermostats with purchases of qualifying systems? If so, should I have gotten them for both my upper and lower systems?
3. Can my lower zone be better balanced without redoing the ducting given that basement and 1st level registers are shared on both main trunks? The cooling temp differential between the 2 floors is 4-6 degrees.
4. Is it typical to split basement and 1st floor on separate trunks and/or to use electronic dampers like they did for the 2d and 3rd floors?
thanks
sclancy
mike_home
David C Brown
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