Homeowner Support Hotline: Education Central Engage, Apply, Retain 2” Series Thermostats Homeowner Support Hotline: 800-284-2925 Note: This module covers common elements. Refer to Specification Sheet or Installation Instructions for detailed information.

Emerson 2” Thermostat Selecting the Right Thermostat for the Job Application Coverage by System Model Stages Heat / Cool by System Applications Programming Options Power Source Single Stage (SS) Multi-Stage (MS) Heat Pump (HP1 or HP2) Universal (All) Model Number Single Stage Multi-Stage Heat Pump Gas/Oil/Electric 3-Wire Zone Value Millivolt Compatible Humidity Control Program Days per Week Program Periods per Day Hardwire Battery Power Assist Single Stage / Heat Pump 1F80-0261 1/1   ✓ 5+1+1 4 B,H 1F80-0224 24 Hours 1F82-0261 2/1 1F86EZ-0251 Easy Set Ø 3 Presets 1F86-0244 1F89EZ-0251 Easy Set 1F89-0211

2” Series Thermostats Agenda Applications Wiring Configuration Programming Featured Products In This Module 1F80-0261 Single Stage / Programmable 1F82-0261 Multi Stage / Programmable 1F86EZ-0251 Single Stage, with 3 Presets 1F89EZ-0251 Multi Stage / with 3 Presets

Look at the Box for Detailed Information Staging By System Type Programming Options Applications Terminal Identification Part Number

2” Series Thermostat Overview Single Stage or Two Stage Heat Pump Easy-to-Read 2-Square-Inch Blue Display Comfort Alert™ Compressor Protection Battery Power Monitor Choice of Programmable or Non-Programmable Easy Set has 3 Pre-Sets: Home-Sleep-Away +/-1 Degree Accuracy- For Optimum Comfort and Equipment Life

2” Series Specification Sheets Contain Detailed Information

Conventional or Heat Pump with No Aux 2” Series Applications Application Stages Programming Type Conventional or Heat Pump with No Aux 1/1 1F86-0244 5+1+1 1F80-0261 3 Presets 1F86EZ-0251 24 Hr 1F80-0224 Heat Pump Only With Aux 2/1 1F89-0211 1F82-0261 1F89EZ-02511

HP Only With Aux/Emer ** Emerson 2” Series Terminal Designations 2" Series Conventional Heat Pump CONV or HP with No Aux* HP Only With Aux/Emer ** Terminal Description 1F86-0244 1F80-0261 1F86EZ-0251 1F80-0224 1F89-0211 1F82-0261 1F89EZ-0251   Programming 5+1+1 3 Presets 24 Hour Stages 1/1 2/1 W 1st. Stage Heat ● W2 Aux Heat 1st Stage for HP Y 1st Stage Compressor O/B Reversing Valve Combined G Fan Relay R 24 VAC Hot (TH) C 24 VAC Common (TR) Wire L Diagnostics Note: * Requires Field Wiring from Y to W for Heat Pump ** Heat Pump Only Y is 1st Stage

Batteries Two “AA” alkaline batteries are installed in your thermostat with a battery tag to prevent power drainage. Prior to use, open the battery door and remove the battery tag. To open, pull the battery door as shown by the arrow and lift open Thermostat can be powered by system AC power or Battery. If is displayed, the thermostat is battery powered. If is not displayed, thermostat is system powered with optional battery back-up When “Change ” is displayed, install fresh “AA” alkaline batteries immediately. NOTE: When less than two months of battery life remain, the set point temperature will offset by 10 degrees (10 degrees cooler in Heat mode / 10 degrees warmer in Cool mode). If offset occurs, the normal setpoint can be manually reset with UP or DOWN button . Another offset will occur within two days if batteries are not replaced.

2” Series Application Selection Switches FAN (GAS/ELEC Switch) Fan Operation GAS position lets the equipment operate the fan on a call for heat ELEC position lets the thermostat operate the fan on a call for heat—you will use this position for heat pumps or electric furnaces. O/B (Reversing Valve Switch) When used on a heat pump determines if reversing is energized in cooling “O” or energized in heating “B” 1F80/1F86 1F82/1F89 These switches are on the back of the thermostat and must be configured correctly for the application

Typical Single Stage Wiring Field Installed Jumper option to convert 1F80 and 1F89 to a single stage heat pump with no auxiliary heat NOTE: The 2” Series uses a push in wire block, not screw terminals

Two Transformer, No Safety Circuits Polarity MUST be correct. If the HOT side of the second transformer is jumpered to the COMMON side of the first transformer a short will be made and damage will occur

Two Transformer Polarity MUST be correct. If the HOT side of the second transformer is jumpered to the COMMON side of the first transformer a short will be made and damage will occur

2” Series Navigation Day of Week Actual Room Temperature Time of Day Heat/Cool/Off Button Fan Auto/On or Run Sched Button Battery Status = Full Charge = Half Capacity = Replace Batteries Temperature or Config Adjustment Buttons Actual Room Temperature Desired Temperature

2” Series Entering System Configuration 2. Press the Up and Down button simultaneously Most technical service calls are the result of improper system configuration 1. System must be in OFF Mode

Press Δ or  to Select From Listed Options 2” Series Configuration Record settings of key items for Homeowner Reference Menu # Displayed (Default) Press Δ or  to Select From Listed Options Comments 1 SS HP Selects Single Stage (SS) or Heat Pump (HP, 1 compressor) 2 CS (OFF) On Select Cool Savings Feature On or OFF (3) 1, 2, 3, 4, 5, 6 If CS selected On, selects Cool Savings value 3 E (On) OFF Select Energy Management Recovery 4 CR Heat (ME) FA, SL Select Adjustable Anticipation, Cycle Rate, Heat Single Stage 5 CR Cool (FA) SL Select Adjustable Anticipation, Cycle Rate, Cool Single Stage 6 CL Select Compressor Lockout OFF or On 7 L Off Select Display Light On or OFF 8 Temp (0 HI) 4 LO to 4 HI Select temperature display adjustment higher or lower 9 F C Select F/C Display 10 Change Filter Select Filter replacement indicator OFF or On (200 h) 25 to 1975 If Change Filter selected On, selects time interval for Change Filter Indicator (in 25 hour increments) 11 Returns to normal operation

2” Series Programming Worksheet Technical Service has never spoken to anyone who could not program the thermostat once they filled out the schedule worksheet in the manual and KEPT it. Save a call back and fill it out the form from the homeowners manual with the homeowner. Ensure they have the Homeowner Support Hotline: 800-284-2824

2” Thermostat Buttons and Switches TIME button. SYSTEM switch (COOL, OFF, HEAT, EMER) PRGM (program) button. FAN switch (ON, AUTO). RUN/HOLD (program) button. Raises temperature setting. Lowers temperature setting. 6 7 1 5 3 2 4 NOTE: TIME, PRGM and RUN/HOLD buttons not on non-programmable models.

2” Series Set Time and Day Set Current Time and Day Press TIME button once. The display will show the hour only Press and hold either UP or DOWN until you reach the correct hour and AM/PM designation (AM begins at midnight; PM begins at noon) Press TIME once again. The display window will show the minutes only. Press and hold either UP or DOWN until you reach the correct minutes. Press TIME once again. The display will show the day of the week. Press UP or DOWN until you reach the current day of the week. Press RUN/HOLD once. The display will show the correct time, day, room temperature and set-point temperature.

2” Series How To Set A Program Move the SYSTEM switch to Heat or Cool Press PRGM once. “Mo Tu We Th Fr” (indicating weekday program) will appear in the display. Press UP or DOWN to change the displayed temperature to your selected temperature for the 1st program period. Press TIME once (the programmed time will flash). Press UP or DOWN until your selected time appears. The time will change in 15 minute increments. When your selected time is displayed, press TIME again to return to the change temperature mode. Press PRGM once. The currently programmed start time and setpoint temperature for the 2nd program period will appear. Repeat steps 3 and 4 to select the start time and temperature for the 2nd program period. Repeat steps 3 through 5 for the 3rd and 4th program periods. Press PRGM once. “SA” (indicating Saturday program) will appear in the display, along with the start time for the 1st period and the currently programmed temperature. Repeat steps 3 through 7 to complete Saturday programming. Press PRGM once to change to SU (Sunday) programming and repeat steps 3 through 7 to complete Sunday programming. When you have completed entering your program ,press RUN/HOLD.