I have a new Honeywell RTH 350 Thermostat, replacing an old Honeywell (don't know model number but round mechanical model with very basic controls of heat, cold and fan/auto). The wiring to the heat pump inside unit only has the following four wires connected down at the unit - Red, Yellow, White and Green. The rest are wrapped up and not connected to the inside unit. How should I wire this new themostat, especially since no orange wire connected to anything at the inside unit? Inside unit is a carrier, CNRVP3617ATAABAA, has natural gas auxiliary. Outside compressor a Byant, CC1CJ030-E This system was originally installed by a poor contractor who the builder didn't pay on time and then they cut corners on the system on several things. We had it fixed (had to replace much of inside system essentially because copper piping wrong and caused failure). Should have had the basic thermostat done then but didn't. Can anyone tell me how to wire this and whether lack of connection for orange a problem? Thanks

I have a trane xv95 with heat pump and a Trane XR402 Thermostat. The xv95 has a variable speed blower which can be set, I blelieve, with the current thermostat. The XR402 is not programmable so I have been looking at some new Honeywell touchpad progrmmable thermostats (RTH7600D1022). While the Honeywell Thermostats are programmable, I do not see where they support the variable speed blower. I am not seeing it anywhere in the specs for the stats unless I am just not looking at the right thing. I am not that familliar with the variable speed as well. I think the XR402 has a setting where you can set the Blower at a certain percentage which then determines the blower speed. Can someone shed some light on this for me? Thanks.