Changing thermostats

Hi, I have a furnace with a heat pump. My original thermostat is a Honeywell T8411R1002 manual. The new one is a Honeywell T841A1217. The old one has places to hook up 7 wires. The new one has places for 9 wires. The Gray wire is marked as X on the old one. On the new one there is no X for the...

I am taking out a Lennox non-programmable thermostat for a programmable Honeywell Model 7500 programmable thermostat. When I remove the old thermostat there are only 2 wires attached to the device. When I asked honeywell about the wiring they asked if the old thermostat was 24 volts. There is no...

I'am changing to a digital thermostats. The old one is honeywell but the wiring is different form the new honeywell.. Old one Lr69071 has 6 wire y=yellow g=green o=ornage r=red w2=white and x=gray Y g o are w2 x. The new one has rh rc w why g model# RTH230B. Do I have the right thermostat...

My outside unit leaks Freon and needs to be replaced. The system is about 9-10 years old. Initially, the contractor gave me a $2500 estimate to change the outside unit to a new Trane XR14. When the written estimate came, it included changing the coil and fan package inside (it's a ceiling unit)...

I am replacing a "White Rodgers 1F94-71" with a "Carrier TSTATCCPHP01-B". The wiring on the White Rodgers is: O-Orange, Y1-Yellow, C-Black, G-Green, White jumper wire from Y-1 toW1, Brown jumper from E1 to W2, R-Red. The following are unused spaces:B,Y2,E2,L,&W3. The Carrier has...