I currently have a Chromotherm IV plus thermostat. The order of wires are yellow to Y, White to W, Green to G, Blue to R and Red to RC. I just purchased the honeywell wireless model as noted above. I assume Y to Y, W to W and G to G. However, the back of the new unit has the designations R then C then RZ with a jumber pre-installed from R to RZ How do I install the red and blue remaining wires?
Thank you.
Best,
Larry