How to Wire an Intertherm Thermostat

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Installing and wiring a new Intertherm thermostat could save a home owner hundreds of dollars each season. A working digital thermostat allows consumers to both monitor and control the heating and cooling levels in the house from the comfort of their living room. Wiring an Intertherm involves the placement of a few wires that power the device and connect it to the air conditioning and furnace units in the home.

Things You'll Need

  • Screwdriver
  • Shut off the power to the wall or area where you'll be installing the Intertherm thermostat. Flip the switch on the appropriate circuit breaker to "Off."

  • Disconnect the old thermostat. Unscrew it from the wall but leave its wires connected momentarily for guidance. Notice where each goes and how they are color-coded before entirely detaching each terminal.

  • Open up the rear portion of the Intertherm thermostat. Unscrew each terminal and look for the small letters that mark where to place each wire. "R" represents red, "Y" represents yellow, "G" represents green and "W" represents white.

  • Connect the color-coded wires to the corresponding terminals. Fasten the screws so that they hold the wires firmly in place.

  • Drill new holes in the wall for the device itself, if necessary. Utilize preexisting holes if possible.

  • Screw each corner of the thermostat into the wall. Check it to make sure it's secure.

  • Restore power by flipping the circuit breaker back to the "On" position.

Tips & Warnings

  • Never attempt to install an electrical device with the power on, otherwise serious injury or damage could occur.

References

  • "Audel HVAC Fundamentals"; James Brumbaugh; 2004
  • Photo Credit Ryan McVay/Photodisc/Getty Images
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