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Non-Programmable RTH111 Thermostat Series Owner s Manual
Remove the cover from the old thermostat. If it does not snap off when pulled firmly from the bottom, check for a screw used to lock on the cover. Loosen screws holding thermostat to subbase, wallplate or wall, and lift away
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RTH111/RTH221 - customer.honeywell.com
nate wire label. Do not connect wires identified as C, C1, X or B as these wires are not used with this thermostat. Wrap the bare end of these wires with electrical tape, so they cannot touch and short out other wires. Introduction
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