SENSITM SMART THERMOSTAT Manual Operation Models: 1F87U-42WF, ST55 Version: January 2020 ©2020 Emerson Electric Co. All rights reserved R-5029.
Table of Contents Buttons and Icons 3 Basic Functionality 4 Manual Settings 6 Menu Configurations 8 Wiring Terminals 9 Back of the Face Plate 10 Sensi Smart Thermostat | MANUAL OPERATION GUIDE 2
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. WI-FI STATUS ICON UP ARROW BUTTON SCHEDULE BUTTON Indicates Wi-Fi connection status. When you turn Wireless Off on the thermostat, this is blank. Adjusts the temperature set point or thermostat configuration.
BASIC FUNCTIONALITY Switching System Mode Press the “Mode” button to switch between all available system mode settings. When the Mode is “Off” the thermostat will not bring on your heating or cooling systems. Fan Mode If you want to circulate the indoor blower, you can switch Fan to “On.” Turn the Fan back to “Auto” when you want the thermostat to control your indoor blower as necessary. Leaving the Fan in “On” will run your blower continuously.
BASIC FUNCTIONALITY Circulating Fan If you want to circulate the air in your home using your indoor blower fan, you can set this feature in the app or at the thermostat. A percentage is selected to indicate how often the fan should run each hour, You can set 5% increments from 10% – 100%. EXAMPLE: If you set the Circulating Fan to 50%, the fan will run 30 minutes every hour. If any heat/cool cycles occur during the hour, their runtime is subtracted from the overall fan run time.
MANUAL SETTINGS Setting the Time Manually When connecting the thermostat to Wi-Fi, the time will sync automatically. If not connecting to Wi-Fi, follow these steps to set the time at the thermostat. 1. Turn Wi-Fi Off. (Refer to section “Turn Wi-Fi Off” on page 4). 2. Press and hold the “Schedule” button. 3. The screen will go blank and the time will start flashing at the top. Use the up and down arrow buttons to rotate through the times until you get to the appropriate time of day. 4. Press “Exit”.
MANUAL SETTINGS Example Schedule If you need to keep track of your time and temperature set points, use this table.
MENU CONFIGURATIONS Pressing “Menu” at the thermostat allows you to change a series of settings to customize the thermostat for your specific system. Refer to the chart below for a complete listing of thermostat configurations and what they stand for. 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.
WIRING TERMINALS See below for definitions of the wiring terminals on the sub-base of the thermostat.
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 on the Welcome Guide in the packaging. Two AA Alkaline batteries are used for back-up purposes.
