Honeywell RTH4300B Installation Manual page 2

TURN OFF POWER at the heating/cooling system or the fuse/circuit breaker panel
before you begin.
MERCURY NOTICE: Do not place your old thermostat in the trash if it contains mercury
in a sealed tube. Contact your local waste management authority for instructions
regarding recycling and proper disposal.
Need Help?
For assistance with this product please visit http://yourhome.honeywell.com
or call Honeywell Customer Care toll-free at 1-800-468-1502
Read and save these instructions.
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