Honeywell RTH 7000 - Manuel (Page 16)

Installation Guide
4
About your new thermostat Remove tab and mount thermostat
TIP: If wires interfere when you try to mount the
thermostat, push excess wire back into the wall opening.
Remove tab.
Align pins on back of thermostat with
slots in wallplate, then push gently until
thermostat snaps into place.