Emerson Sensi 1f87u-42wf Smart Thermostat Installation Manual

Emerson Sensi 1F87U-42WF Smart Thermostat 

Overview

• Home comfort control – Anytime. Anywhere.
• Intuitive app and hardware design validated by research and reviews
• Traditional look that covers 90% of existing thermostat footprints
• Extensive compatibility: heat, cool, heat pump, dual fuel
• No c-wire required in most cases (except HomeKit)

Features

• Remote app control
• Auto changeover
• Large backlit display
• Humidity control
• Usage reports in-app for
• heating, cooling, and fan run time
• Contractor branding on device and in-app
• Popular smart home platform integrations – Amazon Alexa, Google Assistant, Apple HomeKit, SmartThings and Wink
• Geofencing smart feature and flexible scheduling options for energy savings
• Multi thermostat control capable for light commercial applications

Sensi Smart Thermostat Comparison

Compatibility and common wire (c-wire) requirement

No common wire required

• Conventional heating and cooling systems

Common wire required

• Apple HomeKit
• Heat only or Cool only (2 wire)
• Heat pumps

Not compatible

• Millivolt systems
• External 24 VAC Transformer is an option
• Communicating systems
• Line voltage systems
• Accessory control

Terminal outputs

The common wire could be labeled “C”, “B” or “X” on the old thermostat. Please refer to the owner’s manual of the old thermostat.

What if I don’t have a common wire and need one?
There are a few options if the application does not have or will not allow the pulling of a common wire (c-wire) through the wall.

1. Look for an unused wire in the thermostat cable bundle
   Video: Using an extra, unused wire as a common wire
2. Use the “G” (Fan wire)
   Video: Using a g-wire (fan wire) as a common wire
3. Install an Emerson Thermostat Common Wire Kit
   Video: Using an Emerson Thermostat Common Wire Kit

Do I need a RC/RH jumper?

No jumpers required

• Sensi Thermostat has a built in RC/RH jumper, no need to field install a jumper
• If you have separate wires to RC and RH terminals (two transformer systems)
• Label the wires RC and RH separately and then clip the jumper wire on the back of the Sensi face plate.

RC/RH jumper location

• Sensi Thermostat has a jumper built-in on the back of the thermostat
• No jumpers are required when installing the Sensi Smart Thermostat

Heat pump jumper wires

• Some thermostats will may have additional jumpers installed
• Remove the jumper and label as shown below

Wiring

two transformer – conventional single-stage or two-stage systems

Quick tip: Thermostat wiring does not follow a standardized color code. Take a picture with your smart phone and label thermostat wires before removing old thermostat from the wall.

heat pumps single-stage or multi-stage systems

Quick tip: Thermostat wiring does not follow a standardized color code. Take a picture with your smart phone and label thermostat wires before removing old thermostat from the wall.

Heat pump wiring exceptions

Separate W2 and E Wires

• Both wires will be labeled W/E and attached to the same terminal.

B Terminal Wires

• “B” terminal can be used for more than one. Here is the solution to cross.
• If there is a wire on the “O” terminal, label the B wire C
• If there is no wire on the “O” terminal, label the B wire O/B

Terminal outputs

Note that Y2/* and W2/* are being used for wired humidification or dehumidification, respectively

System configuration

System Compatibility List – Humidity Control

• Heat only: Humidifier only
• Cool only: Dehumidifier only
• 1 stage heat, 1 stage cool: Humidifier and Dehumidifier
• 1 stage heat, 2 stage cool: Dehumidifier only*
• 2 stage heat, 1 stage cool: Humidifier only*
• 2 stage heat, 2 stage cool: None*

Note: if the staging on a 2 stage heat or 2 stage cool system can be handled by the furnace/air handler board, that will open up the Y2 or W2 terminal for hum/dehum use.

How to Set Up Humidity Control on the Sensi Thermostat

Installation

• Install humidifier/dehumidifier equipment
• Wire the whole-house humidifier to the Y2/* terminal
• Wire the whole-house or standalone dehumidifier to the W2/* terminal
• New menu items H AA and dH AA (Additional Accessory)
• For wired dehumidification, select OC (Optimal Comfort)
• For dehumidification through overcooling, select Od (Optimal Dehumidification)
• Depending on installed equipment, select the appropriate configuration

Connecting to Wi-Fi is simple

Connect with your customers – Anytime. Anywhere.

• Register your company at www.SensiRegistration.com
• Upload your logo which will be displayed in your customer’s phone
• During installation, enter your registered phone number in the Sensi app
• The Sensi app stores your contact information in your customer’s phone.
• When your customer needs service, you’re just a tap away.
• Also, if your customer receives a smart alert due to a system issue, your contact information will be included

Grow your business with a light commercial solution from Sensi
Sensi Multiple Thermostat Manager offers a simple, affordable solution for property-wide comfort control, connected in one place.
Learn more and take a FREE test drive at sensi.emerson.com/mtm

Learn more at emerson.com/sensipro

Sensi™
Smart Thermostat
1F87U-42WF Installation Training
Sensi Smart Thermostat 1F87U-42WF Installation Manual – Download [optimized] Sensi Smart Thermostat 1F87U-42WF Installation Manual – Download

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