I just bought the p474-1100rec. I have four wires from wall, white, red, green and blue.
It is currently hooked up to a White Rodgers as follows:
White=W, Red=rc with a jumper to rh, green=g and blue=gas

How do I wire the p474? If I am reading it right, I should have red, white, green and yellow.

Help!

Thanks,
Phil

Blue = gas?

Check to see if Blue is not attached to terminal Y.

That is a heat pump thermostat you bought that can also be remote controlled.

http://www.ntsupply.com/files/products/T1100RECManualInstallRev3.pdf

What was the exact brand and model of your old thermostat. It is possible there could be some wiring problems since a heat pump requires a B terminal in somecases but also a Y terminal for strait A/C usage.

Thank all for your answers. I found that I have a Lennox G60UHV X series.
From the funrance it is wired as follows White=W1, Red=R, Green=G, Blue and Red=Y2

The Therm is a model 1F86-244 The blue is attatched to the Y after looking at it better

Explain:
Blue and Red Y2
Red = R

Confused.