I think it would be fair to say that every furnace manufacturer that
uses the ECM motor has their own propriatary electronics control
module on the end of the motor. each manufacturer would have their
own propriatary control algorithms, and to tap into those would
require a propriatary type t-sat.
personally never having seen a Lennox Signature Stat, I googled it.
Interestlingly enough, it looks identical to the old Invensys series
t-stats. So is a Lennox Signature series t-stat merely a re-labled
Invensys stat? I do not believe Lennox currenly manufacturers their
I figure its similiar to the Trane thermostats....nothing more than a
re-labled Honeywell. Now is Invensys adding esoteric humidity
controls to one specific model they are re-labeling for Lennox and
calling it a Lennox Signature t-stat? who knows.....but I sincerely
doubt it. personally i think its nothing more than sales hype. Like
18.6 seer or whatever.
Have you ever seen a meter or tool that measures seer? Can anybody
'measure' your systems seasonal efficiency? If it cannot be
measured, how are you to know you got what you paid for?
I too would tend to set the cfm around 1200 for your application
Your Sub-contractor is a friggin idiot and you should get rid of him, before
he screws anything up. I would definitely brag to anyone you know about his
incompetence. But I am sure he has great prices!!!
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