PRO Installation 1
Designed by the pros for the pros There are a lot of choices when it comes to buying a thermostat, but only one combines 125 years of experience and the latest connected home technology to empower your customers to take control of their comfort from anywhere. We proudly connect you to a professional-grade thermostat that you can offer your customers with confidence and that will keep you connected with them even after the initial install.
Easy to install and connect Sensi is designed to install like a standard thermostat. It gives you the flexibility to connect to Wi-Fi at installation or let your customer connect it later using the Sensi app.
HVAC SYSTEM COMPATIBILITY SYSTEM TYPE COMPATIBILITY MODIFICATIONS Conventional heating and cooling • Gas furnace • Air conditioner • Electric furnace • Boiler Yes None Heat only • Gas furnace • Electric furnace • Boiler Yes Requires a common wire (c-wire) Cool only • Air conditioner Yes Requires a common wire (c-wire) Heat pump Yes Requires a common wire (c-wire) Communicating proprietary systems No Needs standard HVAC wiring Line voltage No Requires low voltage (20-30VAC) Millivolt sys
What’s in the box? • Sensi Thermostat • Screws and Anchors • Wire Labels • 2 AA Batteries • Sensi Security Code (found on the back of the Welcome Guide) Items needed for Wi-Fi connection: • The homeowners compatible iOS or Android device with the Sensi app installed and registered • Your customer’s Wi-Fi network name (SSID) and password QUICK TIP: Ask the homeowner to download the Sensi app and gather their Wi-Fi information while you are installing the thermostat.
Installation 1.
CONVENTIONAL SINGLE STAGE OR MULTI-STAGE SYSTEMS (NO HEAT PUMP) Cooling Transformer Heating Transformer Heat Pump L terminal connection Heat pump changeover, zone panel or 3-wire hot water zone valve connection.
HEAT PUMP SYSTEMS Thermostat † †† System Configuration Heat Pump L terminal connection Heat pump changeover (reversing valve) connection (configure as O or B in the installer menu) Indoor blower (fan) energized on call for fan, cool or heat 1st stage auxiliary/ emergency heat (2nd stage heat) 2nd stage heat and cool compressor 1st stage auxiliary/ emergency heat (3rd stage heat) 2nd stage auxiliary/ 2nd stage auxiliary/ emergency heat emergency heat (3rd stage heat (4th stage heat or dehumidifier
2. After installation, configure the thermostat to the appropriate system type. Press “Menu” on the thermostat and refer to these menu options as needed: CONFIGURATION MENU ITEMS REFERENCE Menu item Description Options Outdoor Equipment Select AC or Heat Pump equipment, as well as the number of stages.
3. Once the thermostat is installed and properly configured, test the equipment by following these steps: • Turn on power to the system. • Fan Operation • If your system does not have a “G” terminal connection, skip to “Heating System” below. • Press the “Fan” button on the thermostat and select the “On” position. The blower should begin to operate. • Press the “Mode” button to turn off the system. Then press the “Fan” button on the thermostat and select the “Auto” position.
Heating System • Press the “Mode” button on the thermostat and select the “Heat” position. • Press the up arrow on the thermostat and adjust the setting to 1° above the current room temperature. The heating system should begin to operate and the thermostat will indicate “Heating” of “Heating Auxiliary” on the screen. • For heat pumps with auxiliary, press the up arrow on the thermostat and adjust the setting to 3° above the current room temperature.
Auxiliary System (only for heat pumps with auxiliary) • Press the “Mode” button on the thermostat and select the “Aux” position. This bypasses the heat pump and runs auxiliary-only heat. • Press the up arrow on the thermostat and adjust the setting to 1° above the current room temperature. The auxiliary heating system should begin to operate and the thermostat will indicate “Heating Auxiliary” on the screen.
Cooling System • Press the “Mode” button on the thermostat and select the “Cool” position. • Press the down arrow and adjust the setting to 1° below the current room temperature. The blower should come on immediately on high speed, followed by cold air circulation. The thermostat will indicate “Cooling” on the screen. Note that there can be up to a 5 minute delay for this process. This is indicated by a flashing setpoint temperature.
Humidification • Press the “Mode” button on the thermostat and select the “Heat” position. • Press the up arrow on the thermostat and adjust the setting to 1° above the current room temperature. The heating system should begin to operate and the thermostat will indicate “Heating” on the screen. • Press the “Menu” button on the thermostat and press the “Next” button until you reach the “H SP” screen.
Dehumidification • Press the “Mode” button on the thermostat and select the “Cool” position. • Press the down arrow and adjust the setting to 1° below the current room temperature. The blower should come on immediately on high speed, followed by cold air circulation. The thermostat will indicate “Cooling” on the screen. Note that there can be up to a 5 minute delay for this process. This is indicated by a flashing setpoint temperature.
Troubleshooting SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION No Heat/ No Cool/ No Fan (common problem) 1. B lown fuse or tripped circuit breaker 1. R eplace fuse or reset breaker 2. Furnace power switch to OFF 3. F urnace blower compartment door panel loose 2. T urn switch to ON 3. R eplace door panel in proper position to engage safety interlock or door switch 4. T ighten connections 4. L oose connection to thermostat or system No Heat 1. T hermostat not set to Heat 2.
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION No Cool 1. T hermostat not set to Cool 1. S et thermostat to Cool. 2. Loose connection to thermostat or system 3. C ooling system requires service or thermostat requires replacement 2. V erify thermostat and system wires are securely attached. 3. D iagnostic: Set Mode to Cool and lower setpoint below room temperature.
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION Humidity Display & Hygrometer Disagree Humidity display requires adjustment Display can be adjusted in 5% increments +/-25% using the Humidity Offset in the Sensi app. Furnace (Air Conditioner) Cycles Too Fast or Slow The location of the thermostat and/ or the size of the Heating System may be influencing the cycle rate Digital thermostats provide precise control and cycle faster than older mechanical models.
Connecting Sensi to Wi-Fi 1. A sk the homeowner to download the free Sensi app onto their iOS or Android device. 2. A sk the homeowner to follow the prompts to create an account. 3. Once the homeowner has logged in, ask to use their device to connect the thermostat to the Wi-Fi. QUICK TIP: You must have your customer’s Wi-Fi Network (SSID) and Password, along with the Sensi Security Code card to complete the wireless setup. 4.
Warnings INSTALLER INFORMATION FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE. WARNING: OUT OF PHASE TRANSFORMERS On two transformer systems, the transformers MUST be in phase. Measure the voltage across RC and RH. If more than 12 Volts AC is present between RC and RH, then the transformers are NOT in phase.
For Your Customer MAKE SURE TO LEAVE THE SENSI WELCOME GUIDE FOR YOUR CUSTOMER.
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