Document Installation InstructionsHoneywell Wi-Fi Color Touchscreen Programmable Thermostat WelcomeGetting set up and ready is simple.
Before you begin 1. Install your thermostat1.1Switch OFF power to your heating/cooling system This thermostat works with common 24 volt systems such as forced air, hydronic, heat pump, oil, gas, and electric. It will not work with millivolt systems, such as a gas fireplace, or with 120/240 volt systems such as baseboard electric heat. 1.2 Remove old thermostat faceplate and leave wires connected 1.2a Take a picture of the wire connections for later reference. 1.2b If no wire is connected to a terminal labeled C or no C terminal exists on the old thermostat, view the Alternate Wiring videos at wifithermostat.com/videos If you have an older thermostat with a sealed mercury tube, see warning page for proper disposal instructions. 1.3 Label wires Note: If no tag matches a terminal designation, write the appropriate letter on a blank sticky tag. Note: Wrap the wires around a pencil to prevent them from falling back into the wall. 1.4 Remove wallplate Remove the old wallplate from the wall after all wires are labeled and disconnected. 1.5 Mount wallplate for Wi-Fi thermostat Mount your new wallplate using screws and anchors included with the thermostat. If necessary:
Note: You may be able to use your existing wall anchors. Hold the wallplate up to the existing anchors to check for alignment. 1.6 Connect wires Note: Refer to the wiring picture you took in Step 1.2. Tip:To make it easier to slide the wire into place, use a pen tip to hold down the terminal release. Note: The wiring for your application might be different than the wiring shown below. Labels don’t match or have heat pump system? 1.6c
In the image on the right, check the box next to each connection. You will use this checklist in Step 1.9. Note: The L terminal on the lower right is used only for Heat
Pump systems. Important! Labels don’t match or have heat pump system? 1.7 Attach thermostat to wallplate Align the thermostat with wallplate and snap into place. 1.8 Switch heating/cooling system ON Important! 1.9Select setup
Follow
prompts on the screen to select appropriate options. 1.9b Select Home or Business application, then touch Next. 1.9c Touch Next or name the thermostat location—touch THERMOSTAT and follow the rest of the instructions. 1.9d Select what your thermostat will control and touch Next. 1.9e Select your system type and touch Next The system type determines other selection for completing initial setup. Use the checklist from Step 1.6 when making selections. 1.9fTouch Next after making selections on each screen. 1.9g Touch Done on the last screen. The thermostat displays an option to connect to your Wi-Fi network. Read More About:Honeywell WiFi Color Touchscreen Thermostat – Programming Manual Honeywell WiFi Color Touchscreen Thermostat Manual – Optimized PDF Honeywell WiFi Color Touchscreen Thermostat Manual – Original PDF Honeywell WiFi Color Touchscreen Thermostat – User Manual PDF Does Honeywell t3 need CThis Honeywell programmable thermostat uses an internal disposable battery for its primary power. A "C" wire is not required. It will work with a 2 wire system.
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