Honeywell RTH6400 Owner's Manual - Page 2
Installation is Easy
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Installation is Easy Label wires and remove your old thermostat Install and wire your new thermostat Set your new thermostat to match your heating/cooling system - It is preset for the most common system We are here to help. Call 1-800-468-1502 for wiring assistance before returning the thermostat to the store. 69-2210EF-03 ii
69-2210EF—03
ii
Installation is Easy
Label wires and remove your old thermostat
Install and wire your new thermostat
Set your new thermostat to match your heating/cooling
system
–
It is preset for the most common system
We are here to help.
Call 1-800-468-1502 for wiring
assistance before returning
the thermostat to the store.