definately keep us posted. Get on it first thing tomorrow. Don't let them give you the run around. Its your money.
Why wait till thursday, she can do it this morning when they get there. :)
Why not just heat the uninsulated garage and call it good:D No more oversize equipment !!!
How did you know about the garage ? It is insulated , but can't put in returns , against code , negative pressure etc. . Ha Ha !
Not knowing the age of the home and other info, I would almost want to bet you could get by with a 80,000 model.
Ask for a manual J, and if you want, you can down load a home owner's manual-J up above for $50.
All the stuff you got on there, sure hope they did a two stage t-stat???
Honeywell Pro TH4000 series.
Man, do you have a problem:confused:
First off, I think we can be safe in concluding your furnace is over size :(
second, you say the returns are two--14 x 8 and a 6" ???
a 120K BTU furnace will move 2000 cfm. On a furnace this big, I would install a MINIMUM of 10 x 24 in a bottom return or two 8 x 24, one on each side of the furnace. I think your return is inadequate.
NOW.....not all is lost. The TUY120R9V5V can handle a 3½ ton air conditioner. Increase your return air to, two 24 x 8 (24 x 10, if it will fit) and--->
check your dip switch's, I would set them up this way for 3½ tons of a/c~~~~~
1st stage heat, DIP SWITCH 7 & 8 to NORMAL. sw7---on, sw8---off. with a static pressure of 0.5 this should give you a fan speed of 1370 cfm with a delta T of 49° (for *HI* speed set them to sw7---off and sw8---off)
2nd stage heat, DIP SWITCH 7 & 8 to NORMAL. sw7---on, sw8---off
AIR FLOW SETTING FOR COOLING
DIP SWITCH 1 & 2 & 3 & 4 (set the fan speed to 350 cfm/ton)
sw1---off, sw2---on, sw3---off, sw4---on ~~~~~ with a static pressure of 0.5, these setting will give you 1220cfm.
If you set the dip switchs to 400cfm/ton the minimum fan speed you will get is 1400cfm
But before you do that, we got to fix this "maybe oversized" furnace.
TH4110 is a standard 1 heat one cool sat.
We don't know off hand of what model he may have.
Come to think of it, he may very well have the TH4110 being he said the furnace locks out after 10 min... The board is firing off 2nd stage around that time.
Plus, I believe the 4210 can be used on fossil fuel fnaces. Like the 5220 can.