Emerson 1f87u-42wf Smart Thermostat Installation Guide

Sensi™
Smart Thermostat
1F87U-42WF Installation Training

Sensi Smart Thermostat ­ Best Value

Overview

• Home comfort control – Anytime. Anywhere.
• Intuitive app and hardware design validated by research and reviews
• A traditional look that covers 90% of existing thermostat footprints
• Extensive compatibility: heat, cool, heat pump, dual fuel
• No c-wire is 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

THERMOSTAT FEATURE
MSRP	$169	$129
Aesthetics	Modern / Simple / Sleek	Traditional / Approachable
Interface	Capacitive Touchscreen	Buttons
System Type	Universal 4H/2C	Universal 4H/2C
Contractor branding	App-only	Device & App
C-Wire Required	Yes	No
Humidity Control
Dual Fuel
Smart Feature – Geofencing
Keypad Lockout

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 4

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 an 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 faceplate.

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 have additional jumpers installed
• Remove the jumper and label as shown below

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

A quick tip: Thermostat wiring does not follow a standardized color code.
Take a picture with your smartphone and label thermostat wires before removing the old thermostat from the wall.
Wiring – heat pumps single-stage or multi-stage systems

A quick tip: Thermostat wiring does not follow a standardized color code.
Take a picture with your smartphone and label thermostat wires before removing the 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 Dehumidify
• 1 stage heat, 2 stages cool: Dehumidifier only*
• 2 stage heat, 1 stage cool: Humidifier only*
• 2 stage heat, 2 stages cool: None*

* Note: if the staging on a 2 stage heat or 2 stages 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 on 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
Total Comfort Control
Monitor multiple commercial thermostats from anywhere through the intuitive portal featuring drag­and-drop functionality.|
Keypad Lockout & Temperature Limits
Maintain total control of your thermostat settings by setting temperature limits or disabling changes made outside of the online control portal.
Group Scheduling Monitor
Easily consolidate and customize settings across multiple thermostats by grouping and sorting.
Energy Saving Features
Remote control and flexible batch scheduling can minimize energy waste and help you save money.
Extensive Compatibility*
Works with HVAC systems in most facilities. All you need are our highly-rated Sensi Smart Thermostats.
Smart Alerts
Enable optional notifications that let you know when and where extreme temperature or humidity changes are detected in your building(s).

Learn more at emerson.com/sensipro
Sensi™
Smart Thermostat
1F87U-42WF Installation Training

References

• Sensi for Professionals | Emerson US
• Sensi Multiple Thermostat Manager | Unlimited Thermostat Control | Sensi US
• Join the Sensi™ partner program
• Join the Sensi™ partner program
• Sensi Multiple Thermostat Manager | Unlimited Thermostat Control | Sensi US
• Sensi installation: Using a g-wire (fan wire) as a common wire - YouTube
• Sensi installation: Using an extra, unused wire as a common wire - YouTube
• Sensi installation: Emerson Thermostat Common Wire kit - YouTube