Blower Capacity of Trane XV95?

[SeekingHelp]

I'm getting conflicting reports about blower capacity of Trane XV95 from contractors. I need a 4-ton AC condenser (considering Trane XR13) according to load calculation. One contractor bid and says that requires the 100K BTU XV95 while another bid the 80K BTU XV95 and says that works fine. Can anyone advise? Where would I find the XV95 blower capacities on the Trane website (I can't find them there)?

If I need the 100K BTU unit for the 4-ton AC, what is the downside if the load calculations say I only need about 70K BTU for heating?

[dan sw fl]

http://www.trane.com/webcache/un/fur...7_05012011.pdf

Page 11 seems to provide the necessary info on 4-ton NORMAL air flow requirements.

[BaldLoonie]

Don't oversize the furnace. Trane came out with an 80K XV95 with 4 ton blower just for you

[SeekingHelp]

Thank you very much for the link.

It appears the answer is that there are actually 2 different 80K XV95 models, a *DH2B080A9V3V and a *DH2B080A9V4V. The latter has a larger blower motor (3/4 hp vs 1/2 hp) and is rated for 4-ton AC while the former isn't. So it appears one contractor was not aware of the model with the bigger blower.

The 100 BTU model still appears to have a bit stronger blower according to the charts. Would that help if my ducting was slightly undersized?

[SeekingHelp]

Don't oversize the furnace. Trane came out with an 80K XV95 with 4 ton blower just for you

Is that a concern with the 2-stage furnace? The lower stage capacity of the 100K BTU model is rated at about 63K BTU vs the 70K load calculation.

[beenthere]

The 100 BTU model still appears to have a bit stronger blower according to the charts. Would that help if my ducting was slightly undersized?

Probably just make your duct system louder if your duct system is under sized.

[dan sw fl]

It appears the answer is that there are actually 2 different 80K XV95 models, a *DH2B080A9V3V and a *DH2B080A9V4V. The latter has a larger blower motor (3/4 hp vs 1/2 hp) and is rated for 4-ton AC while the former isn't. So it appears one contractor was not aware of the model with the bigger blower.

Would that help if my ducting was slightly undersized?

Most likely.
You would know the specific benefits of a larger blower motor if one performs a ACCA Manual D calc after reviewing your existing set-up.


One can provide a quote for a limited work scope duct change to improve air flow.