Today's Honeywell thermostats are digital devices that are more accurate than the old thermostat controls units. They are also safe, reliable and relatively easy to install. Thermostats are used to regulate heating and/or cooling appliances like forced-air furnaces or hot water boiler. The controls are available in programmable or non-programmable models to complete even if it's your first time installing a thermostat.
Although thermostat wiring is considered little or low-voltage wire, always play it safe and shut down the power to the thermostat. Cut the power at the heating appliance or go to the electrical panel and flip the breaker for the heating unit to the off position. Before proceeding, use a voltage tester to make sure that there is no power flowing through the wires.
For the Honeywell thermostat to function properly, it's essential that the device is mounted in the proper location. If you are replacing an existing thermostat, do not assume that the current placement for the control is the best place for the new thermostat. Generally, the best placement for the Honeywell thermostat is on an inside wall that is not subject to drafts or direct sunlight. Avoid placing the thermostat near a window or door. Also, do not place the thermostat control on the same wall as a fireplace, even if the fireplace is inoperable.
If you need to remove an old thermostat, when you take off the cover, keep in mind that most subbase have three screws that you will need to remove from the plate. If the subbase doesn't come off easily, use a utility knife to score around the perimeter of the base. This will prevent damaging the painted surface around the control.
The wiring method is usually colour coded and is simply a matter of connecting the conductors to the appropriate terminal. When disconnecting an old thermostat, label the wires before you detach them from the old thermostat. You may want to take some extra precaution and tape the wires to the wall so that they don't fall back into the opening.
Now, attach the new base plate to the wall and wire the new control. If the colours of the old wiring do not match up with the new configuration, read the wiring instructions for guidance on how to make the necessary adjustments. Usually the terminals are usually attached to the base plate, but some thermostats may have the wires connected to the thermostat control.
When you finish wiring the thermostat, insert the batteries into the compartment and place the cover on the thermostat. Now you can turn on the electric power. Follow the Honeywell thermostat instructions for programming the new control if applicable.
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