new 2 stage furnace install questions

We will soon have a new 80% 2 stage , var. speed furnace installed.
Since this is the new lennox SL280V, I cannot get my hands on the manual yet.

My general Q is: what to double-check on the install? I am a big fan of asking questions, so I want to be armed with a list, but right now I am not sure what to ask about.

My specific Q is about DIP switches , which I only just know vaguely about. Is this right - you can set the DIP switches so either a proper 2 stage t-stat controls the burner, or the furnace can control the burner ( if you don't have a 2 stage t-stat)?

The system comes with a new TH8321U1006 t-stat, which I believe controls 2 stage furnaces. I am also having a new a/c system put in. So if I want to double-check the DIP switch settings, what should they be?

 

If that is truely a 2 stage stat, you want the dip switches set to allow the stat to control staging. What those settings are I have no idea.
Honeywell's site seems to be down so I can't check the stat.

 

Lennox is not easy to find manuals online. Also, this is a brand new model So, you'll just have to wait till you get the furnace, and the dealer should leave the manuals behind (installer and home owners)

Not sure what Lennox is doing on this model, but make sure the dealer hooks up the W1 and W2 by itself on the furnace and t-stat. Manual will have to looked at to see if the furnace had a dipswitch setting to let it know if it's a two or single stage stat.

FIY, this stat will not control the blower speed for humidity in cool mode.. It may "over cool" your home up to 3˚ below set point to control the humidity.


Most brand has dipswitch settings.

-How many ton is the A/C is.
-How many cfm per ton. 400 cfm is the goal per ton.
-Heating blower speed. Temp rise should be checked, and blower set to have the temp rise in mid range of the specs the furnace calls for.
- single or two stage stat.