Hello,
We are trying to change out our White Rogers thermostat for a Honeywell RTH230B. The Honeywell has slots for RH, RC, W, Y and G, however, we have the following wires Red, Orange, Green, Yellow and White. Where does the orange wire go?

Do you have a heat pump? Brand and model number?

It's OK, we got it working. Thank you for your help.