Honeywell RTH6300B - Quick Reference to Display Screen

RTH6300B Programmable Thermostat
5
Installation Guide
4
Remove your old thermostatPre-installation checklist
Required tools & supplies
• No. 2 Phillips screwdriver
• Small pocket screwdriver
• Drill
• Drill bit (3/16” for drywall, 7/32” for plaster)
• Hammer
• Pencil
• Electrical tape
• Level (optional)
• Two fresh AA alkaline batteries
1
TTuurrnn ooffff ppoowweerr
at heating/cooling system (or fuse/circuit-breaker panel).
2 Remove cover and thermostat, but leave wallplate with wires attached.
Old thermostat
Leave wallplate in place Is there a sealed tube containing mercury?
If so, see inside front cover of this manual
for proper disposal instructions.
Cover