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RTH6300B Programmable Thermostat

Installation Guide

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

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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

Honeywell RTH6300B Installation Guide

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