Honeywell RTH5100B - Quick reference to display screen; Current inside temperature; Temperature setting

RTH5100B
5
Is there a sealed tube containing mercury?
If so, see inside front cover of this manual
for proper disposal instructions.
Old
thermostat
Cover
Leave wallplate in place
1. Turn off power at heating/cooling system (or fuse/circuit-breaker
panel).
2. Remove cover and thermostat, but leave wallplate with wires
attached.
Remove your old thermostat