Existing thermostat is a Honeywell and has a separate connections for Aux (white wire) and E (Emergency black wire) The proposed Honeywell T'stat only has a single terminal labeled "Aux E".
How do I connect this?
Choices are several:
Secure the Black wire and connect the white wire only?
Secure the white wire and connect the black wire only?
connect both wires parallel at the Aux E terminal?