Sensi Touch Wi-Fi Thermostat TM INSTALLATION GUIDE Models: 1F95U-42WF, ST75 Version: October 2017
CONTENTS Installation guide Downloading the Sensi app 3 Creating a Sensi account 3 Installing the Sensi thermostat 4 Connecting the Sensi thermostat 8 Notes 10 SensiTM Wi-Fi Programmable Thermostat | INSTALLATION GUIDE 2
DOWNLOADING THE APP AND CREATING AN ACCOUNT You will need Gather this information before you begin installation for a smoother walk through. • Wi-Fi Network Name/SSID *Make sure this is a 2.4GHz network. • Wi-Fi Network Password • Screwdriver • Hardware in Sensi Touch Wi-Fi thermostat packaging Download the Sensi app The Sensi Touch Wi-Fi Thermostat is a Wi-Fi enabled device. To install and configure your thermostat correctly, you must use the Sensi app.
INSTALLING THE SENSI THERMOSTAT Installation Once you have downloaded the Sensi app, and have created an account, you are ready to install the thermostat to your wall and connect it to Wi-Fi. If no thermostats are registered yet, the Sensi app will prompt you to add a thermostat. First, choose which thermostat you purchased. The Sensi Touch Wi-Fi Thermostat option is for the following model numbers: • 1F95U-42WF • ST75 Note: You can check your model number on the back of the thermostat faceplate.
INSTALLING THE SENSI THERMOSTAT Turn off power Turn off the power to your heating and air conditioning system before handling your thermostat wires. Remove old thermostat cover Remove the cover using a screwdriver or by pushing the pressure latch. Some covers pull off while others need to be released using a screwdriver. Photograph your wiring THIS IS IMPORTANT. The Sensi app will prompt you to take a picture of your existing thermostat and old wiring in case you need it later.
INSTALLING THE SENSI THERMOSTAT Throw away any jumper wires Sensi has a jumper wire built into it, and you will not need any jumper wires from your old unit. Choose wire terminals Choose the terminal labels that have wires attached to them on your old thermostat here. The app will tell you if you have a valid configuration. If you are getting an invalid configuration message you can learn more about compatibility at sensicomfort.com/compatibility. System tpe Select what type of system you have.
INSTALLING THE SENSI THERMOSTAT Label your wires Using the provided wire label stickers, label your wires by removing one wire at a time. Disconnect wires and remove base After all of your wires are labelled, remove the old thermostat base from the wall. Install sensi base Use the provided mounting screws and secure the Sensi base to the wall. Connect the wires Once the Sensi Touch base is mounted and secured on the wall, insert the wires into the terminals.
CONNECTING THE SENSI THERMOSTAT Connecting to Wi-Fi This portion of the installation guide covers how to connect your thermostat to Wi-Fi. If you chose the first option, “No, it needs to be installed,” the app will provide instructions for installing and wiring your thermostat before you connect to Wi-Fi. If you had your Sensi thermostat installed by a professional or if you have already installed and wired your Sensi thermostat yourself, but have not yet connected to WiFi, choose “Yes, it is on the wall.
CONNECTING THE SENSI THERMOSTAT Register thermostat After successfully connecting Sensi, the app will prompt you to register the thermostat. You can either choose the “Locate Me” option or fill in your street address, city, state, zip code, country and time zone manually. Press “Next” to continue. Contractor Information If a contractor professionally installed your thermostat, and registered as a Sensi partner, they have the option to input their phone number here.
NOTES Accessing your Sensi thermostat from other devices When you log into your Sensi account with your email address and password, the app or web page will be able to control all the thermostats registered to your Sensi account. If you give someone else your email address and password to your Sensi account, they will be able to log in and control any thermostats registered to that account.
Reconnecting to Wi-Fi If you replaced your router or changed your Wi-Fi network password, you will need to reconnect your thermostat to Wi-Fi. This is different depending on what smart device you are using. IOS If you’re using an iOS device with iOS 10 or later, follow these steps to reconnect to Wi-Fi: • Make sure your iOS device is connected to the 2.4GHz Wi-Fi network that you want to reconnect to. • Press Menu, then Wi-Fi, and then “Set up new network” on the thermostat.
NOTES Accessing account information You can use the Account area to access your email preferences, change your account information and email address associated with your Sensi. For iOS: Tap the person icon in the upper right hand corner. (see picture) For Android: Tap the three dots in the upper right hand corner.
NOTES Single Stage or Multi-Stage Conventional System with Single Transformer THERMOSTAT * RC RH C** Y Y2 W/E W2 G O/B L SYSTEM CONFIGURATION Single stage AC1 GA1 EL1 Multistage AC2 GA2 EL2 No output 24 Volt (Hot) Cool 24 Volt (Hot) Heat 24 Volt Cool (Common) Mode 1 st stage Cool Mode 2 nd stage No output Heat Mode 1 st stage Heat Mode 2 nd stage O Energized Blower / constantly circulator fan Heat Pump in Cool “L” terminal energized on Mode call for cool connection B (and heat if Ener
Single Stage or Multi-Stage System (No heat pump) with Two Transformers THERMOSTAT * RC RH C Y Y2 W/E W2 G O/B L SYSTEM CONFIGURATION Single stage AC1 GA1 EL1 No output 24 Volt (Hot) Cool Multistage AC2 GA2 EL2 24 Volt (Hot) Heat 24 Volt Cool (Common) Mode 1st stage Cool Mode 2nd stage No output Heat Mode 1st stage Heat Mode 2nd stage Blower / circulator fan energized on call for cool (and heat if configured for electric heat) O Energized constantly in Cool Mode B Energized constantly
