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Second totally USELESS reply from such a wonderful and helpful person. Wonder why he trolls these forums anyhow. Thanks again...........

The old one is a Trane XT500C Model TAYSTAT500C.

Thank you.

Great reply, thanks for that.

Your email keeps bouncing back as undeliverable. :(

I read the manual and the wiring is completely different on this old thermostat.

Sorry, I did not know this was against the rules.

This would be my best guess:

BLUE = C
RED = R
WHITE = L
YELLOW = Y
BROWN = Aux/E
ORANGE = O/B
GREEN = G

OK, Got a new Honeywell Vision Pro 8000 Model # TH8320U1008 7day 3/h 2/c thermostat, going to swap out our old Trane thermostat and I'm not sure what wire goes where.
This is a Trane Heat pump unit...

Thanks, beenthere
So what is the basic difference between the commercial and regular version of this thermostat?

Please tell me how? Thanks

Anyone know?

OK, So if I want a permanent hold and to be able to operate the system manually I better go with the non commercial version?
Thanks.

We have a Trane Heat Pump and need a new thermostat. What is the difference between the Honeywell Vision Pro 8000 Commercial and the regular Vision Pro 8000?
I want to be able to operate the system...

Thanks, Would it be OK if I used 2X4's to take up the extra space between the grille and the metal flange in that return and then tried to seal this up before putting the grille back in? There is an...

Why can't I view the pictures?
The slickpic site, I also get nothing :(

Thanks, energy rater la
The site won't let me look at the picture. Do you have a link to this pic?

Thanks guys for the great help, I really appreciate it.
The wood trim is also a great idea. Should those metal tabs from the actual duct be sealed somehow?

Thanks, hvacmedic
I've searched the internet and can't seem to locate a 15 X 15 grille or filter. Where would I be able to find them?

Thanks for the reply. If dust is getting past that grille and filter would it not be blown out of the ducts and through out the house?

Do they make 15" X 15" filters?

Have a small Log Home and it has a 14" X 14" return filter grille that is in an opening that is 15 3/4" square. I have not taken this grille out in years and can not believe what a rig this is. There...