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Emerson 1F89EZ-0251 User Manual

Emerson 1F89EZ-0251
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This thermostat is intended for use with a low voltage NEC
Class II system. Do not use this thermostat with a line voltage
system. If in doubt about whether your wiring is millivolt, line,
or low voltage, have it inspected by a qualified heating and air
conditioning contractor or electrician.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes
and ordinances.
This control is a precision instrument, and should be handled
carefully. Rough handling or distorting components could
cause the control to malfunction.
Emerson Blue Easy Set
2H/1C
Non-Programmable Thermostat with 3 Temperature Pre-Sets
Home, Sleep and Away
Installation Instructions and User Guide
Model: 1F89EZ-0251
Heat Pump
www.white-rodgers.com
www.emersonclimate.com
PART NO. 37-7208B
Replaces 37-7208A
1106
Message to Homeowner
Congratulations on choosing the Emerson Blue Easy Set
Thermostat. The Easy Set is designed to be the easiest
thermostat you have ever used. This thermostat features
Home, Sleep, and Away temperature pre-sets. Just press
the button and go. Included with the easy set is the same
temperature accuracy and reliability you expect from all the
Emerson Blue thermostats.
Just Press the Button and Go!
Table of Contents
Get to know your thermostat ....................................... 2
Thermostat buttons and switches ...............................2
Display .........................................................................2
Batteries ......................................................................2
Using your thermostat .................................................3
Home, Sleep and Away temperature pre-sets ............3
Sleep Timer option ......................................................3
Change Filter reminder option ....................................3
Cool Savings option ....................................................3
Installation .....................................................................4
Remove the old thermostat .........................................4
Install the new thermostat ...........................................4
Set switches ................................................................4
Check thermostat operation ........................................4
Selectcongurationoptions ........................................5
Congurationmenu .....................................................5
Troubleshooting Guide ................................................6
Technical Data ...............................................................7
Wiring diagrams ..........................................................7
Thermostat application guide ......................................8
Specications ..............................................................8
3 Simple Pre-Sets

Questions and Answers:

Emerson 1F89EZ-0251 Specifications

General IconGeneral
Temperature Range45°F to 90°F (7°C to 32°C)
Wi-Fi ConnectivityNo
Programmable Schedule7-Day Programmable
Product TypeThermostat
Voltage24V
Battery2 AA batteries
CompatibilitySingle Stage, Multi-Stage, Heat Pump
DisplayBacklit digital display
Power SourceBattery or C-Wire
ProgrammabilityProgrammable

Summary

Get to Know Your Thermostat

Thermostat Buttons and Switches

Identifies and describes the physical buttons and switches on the thermostat for user interaction and control.

Display Overview

Explains the various icons, indicators, and numerical readouts on the thermostat display and their meanings.

Battery Status and Replacement

Details the battery indicator, low battery warning, and recommendations for battery replacement for optimal performance.

Important Safety Warnings

Highlights critical safety precautions regarding voltage limits, wiring, and potential hazards during installation and operation.

Using Your Thermostat

Pre-set Temperature Modes

Explains how to use and set the Home, Sleep, and Away temperature pre-sets for convenient comfort control.

Sleep Timer Functionality

Describes the sleep timer feature, its default setting, and how it automatically adjusts temperature from Sleep to Home.

Filter Change Reminder

Details the filter reminder feature, its configuration, and how to reset the notification after filter maintenance.

Cool Savings Feature

Explains the Cool Savings option, how it optimizes cooling by adjusting setpoints during high demand, and its energy-saving benefits.

Thermostat Installation Guide

Removing the Old Thermostat

Provides step-by-step instructions for safely removing an existing thermostat from the wall.

Installing the New Thermostat Base

Guides on mounting the new thermostat base to the wall, including marking, drilling, and securing the unit.

Set Switch Configuration

Explains the function of the FAN (Ele/Gas) and O/B switches and how to set them for different system types.

Verifying Thermostat Operation

Outlines procedures to verify the correct operation of heating, cooling, fan, and emergency heating systems.

Configuration Options Setup

Entering and Navigating the Configuration Menu

Explains how to access and move through the thermostat's configuration settings using the system switch and buttons.

Understanding Configuration Settings

Details the various configurable options, their factory defaults, and their impact on thermostat operation.

Adjusting Cycle Rate and Display

Covers settings for cycle rate, temperature display units (°F/°C), and backlight options.

Troubleshooting Common Issues

Resetting the Thermostat

Provides instructions on how to reset the thermostat in case of display blanking or erratic operation due to power issues.

Diagnosing Heating/Cooling Problems

Lists common symptoms like no heat/cool/fan, constant operation, and temperature swing issues with possible causes and corrective actions.

Technical Specifications and Data

Wiring Diagram Overview

Presents a typical wiring diagram for single transformer systems, illustrating terminal connections.

Important Product Information

Contains critical attention notes regarding mercury content, handling damaged cells, and proper disposal of older units.

Thermostat Specifications

Lists detailed electrical ratings, terminal load, setpoint range, differential, operating ambient conditions, and dimensions.

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