Make sure the thermostat message center displays Wi-Fi SETUP1b. On the wireless device (tablet, laptop, smartphone), view the list of available Wi-Fi networks.1c. Connect to the network called NewThermostat_123456 (the number will vary). Note: If you are asked to specify a home, public, or office network, select Home Network. View and Download Honeywell RTH8580WF1007-W1 instruction manual online. Welcome to ManualMachine. You have been successfully registered. We have sent a verification link to to complete your registration. ... The Wi-Fi thermostat requires a C wire to operate. The C, or common, wire brings 24 VAC power to the thermostat..