In an attempt to install a new thermostat for our heat pump, we failed to label the wires before removing old thermostat. How can we find out how to properly connect wires to the new thermostat. We have Concord outdoor unit (44407H097), Armstrong indoor unit (BCZ36A12A-1B). Our old thermostat is White-Rodgers (1F58-86), and our new thermostat is Honeywell 5-1-1 Day Programmable (RTH7400). Appreciate any help available.