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Summary of Contents for Sensi 1F87U-42WF
- Page 1 SENSI SMART THERMOSTAT Manual Operation Models: 1F87U-42WF, ST55 ©2020 Emerson Electric Co. All rights reserved Version: January 2020 R-5029.
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Page 2: Table Of Contents
Table of Contents Buttons and Icons Basic Functionality Manual Settings Menu Configurations Wiring Terminals Back of the Face Plate Sensi Smart Thermostat | MANUAL OPERATION GUIDE... -
Page 3: Buttons And Icons
BUTTONS AND ICONS The Sensi Smart Thermostat can be operated through Wi-Fi using the Sensi app or it can be operated at the actual wall unit. Advanced features such as thermostat settings, scheduling and email alerts are only available through the Sensi app. -
Page 4: Basic Functionality
To temporarily change your temperature use the up and down arrows in the app or on the thermostat. Your Sensi thermostat will display “Temporarily Set To” on the thermostat and will hold your new temperature until the next scheduled set point with a minimum hold time of two hours. - Page 5 2. Press “Next” until you see “Wireless (Setup)” at the top of the screen. “On” should be flashing at the top. 3. Use the up or down arrow button to change it to “Off”. 4. Press “Exit”. Sensi Smart Thermostat | MANUAL OPERATION GUIDE...
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Page 6: Manual Settings
When connecting the thermostat to Wi-Fi, the schedule is programmed based on time and temperature set points from the Sensi app. If you are not connecting to Wi-Fi, follow these steps to set a basic 7 day schedule with 4 mandatory set points. - Page 7 78° F 10:00 pm 82° F COMPLETE YOUR SCHEDULE PERIOD DAILY START TIME DAILY TEMP 6:00 am 8:00 am Heat 5:00 pm 10:00 pm 6:00 am 8:00 am Cool 5:00 pm 10:00 pm Sensi Smart Thermostat | MANUAL OPERATION GUIDE...
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Page 8: Menu Configurations
If you are installing the thermostat on the wall for the first time, we highly recommend that you download the Sensi app and follow the installation instructions. However, if you are experiencing an issue or you want to check your system configurations, you can manually configure your thermostat as well. -
Page 9: Wiring Terminals
Be sure to take a photo of the old thermostat that shows the wire colors and terminal letters before labeling and removing any wires. Sensi Smart Thermostat | MANUAL OPERATION GUIDE... -
Page 10: Back Of The Face Plate
BACK OF THE FACE PLATE Below is a picture of the back of the Sensi thermostat face plate. The back plate shows the jumper wires, battery compartment, and some useful information about your thermostat. SENSI SECURITY CODE BATTERY COMPARTMENT Necessary for connecting to Wi-Fi. Also found Two AA Alkaline batteries are used for back-up purposes.
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Questions and answers
How does the percentage of the **** option work
The percentage option on the Sensi 1F87U-42WF controls how often the circulating fan runs each hour. You can set it in 5% increments from 10% to 100%. For example, if set to 50%, the fan will run for 30 minutes per hour. If heating or cooling cycles occur during the hour, their runtime is subtracted from the total fan run time.
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Heat system seems to only work in Aux Mode and we don't have a heat pump. Why and how to change it back.
If the Sensi 1F87U-42WF heat system only works in Aux Mode without a heat pump, it may be due to incorrect thermostat configuration. The system might be set to a heat pump mode when it actually requires a conventional heating setup.
To change it back:
1. Access the Configuration Menu.
2. Check the heating system setting under "Indoor Equipment Configuration."
3. Ensure it is set to the correct type (e.g., Gas or Electric Heat) instead of a heat pump mode.
4. Adjust the setting accordingly and save the changes.
This should allow the primary heating system to function correctly instead of relying only on Aux Mode.
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