Education You Can Build On

Emerson 4” SeriesThermostats

Homeowner Support Hotline:

800-284-2925

Education CentralEngage, Apply, Retain

Note: This module covers common elements. Refer to Specification Sheet or Installation Instructions for

detailed information.

Application Coverage by System

ModelStages

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

Millivol

t Compatible

Humidity

Control

Program Days per Week

Program

Periods per Day

Hardwire Battery or Power

Assist

Universal1F85-0477 1/1 2/2 3/2 ✓ ✓ ✓   7+5+1+1, 5+2, Ø 4, Ø B,H

1F85-0422 1/1 2/2 2/2 ✓ ✓ ✓   5+1+1, 5+2, Ø 4, Ø B,H

Single Stage / Heat Pump 1F80-0471 1/1   1/1 ✓ ✓ ✓   5+1+1, 5+2, Ø 4, Ø B,H

Universal1F83-0471 1/1 2/2 3/2 ✓ ✓ ✓   Ø Ø B,H

1F83-0422 1/1 2/2 2/2 ✓ ✓ ✓   Ø Ø B,H

Single Stage / Heat Pump 1F86-0471 1/1   1/1 ✓ ✓ ✓   Ø Ø B,H

Emerson 4” ThermostatsSelecting the Right Thermostat for the Job

4” Series Thermostats Agenda

• Applications

• Wiring

• Configuration

• Programming

Featured Products In This Module– 1F85-0477

• Multi Stage, Programmable

– 1F86-0471• Single Stage/ Non-Programmable

Look at the Box for Detailed Information

Staging by System TypeProgramming OptionsApplications

Terminal IdentificationPart Number

4” Series Thermostat Overview

• Single Stage or Universal 2 Heat/2 Cool

• Easy-to-Read 4-Square-Inch Blue Display

• Comfort Alert™ Compressor Protection

• Keypad lockout

• Adjustable Setpoint Temperature Limits

• Battery Power Monitor

• Choice of Programmable or Non-Programmable

• +/-1 Degree Accuracy- For Optimum Comfort and Equipment Life

4” SeriesSpecification Sheets Contain Detailed Information

4” Series Applications

Application StagesProgramming Type

Conventional or Heat Pump with No Aux

1/1

0 1F86-0471

5+1+1, 5+2, 0 1F80-0471

Universal

2/2

0 1F83-0422

5+1+1, 5+2, 0 1F85-0422

3/2

0 1F83-0471

7, 5+1+1, 5+2, 0 1F85-0477

4” Series Terminal Designations 4" Series

Conventional Universal

CONV or HP/No Aux * Conventional or Heat Pump/With Aux

Terminal Description 1F80-0471 1F86-0471 1F85-0422 1F83-0422 1F85-0477 1F83-0471

 

Programming 5+1+1. 5+2, 0 05+1+1. 5+2, 0

07, 5+1+1,

5+2, 00

Stages 1/1 2/2 3/2

W 1st Stage Heat (SS1) ●  

W/E 1st. Stage Heat (MS2) or Aux Heat 1st Stage (HP)

  ●

W2 2nd Stage Heat (MS2) or Aux Heat 2nd Stage (HP2)

  ●

Y 1st Stage Compressor (SS, MS2 or HP)

● ●

Y2 2nd Stage Compressor (MS2 or HP2)

  ●

O/B Reversing Valve Combined

● ●

G Fan Relay ● ●

RH and RC 24 VAC Hot (TH) Separate

● ●

C 24 VAC Common (TR) Wire

● ●

L Diagnostics   ●

6Wet Heat 3 Wire Zone Valve

  ●

Note:* Requires Field Wiring from

Y to W for Heat Pump 

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.

• SS/HP Switch Gas or Heat Pump Applications– Gas or Electric furnace applications W terminal is Heat

• Ensure SS/HP switch is in the SS position– Single Stage Heat Pumps (no auxiliary heat) O/B terminal is Heat

• Ensure SS/HP switch is in the HP position • 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.

4” Series Application Selection Switches

SS/HP switch

These switches are on the back of the thermostat and must be configured correctly for the application

GAS/ELEC switch

• Hydronic Applications– W terminal opens the hydronic valve identified

as 4 on the valve– O/B terminal closes the hydronic valve

identified as 6 on the valve– RH terminal is the hot side of the 24 VAC

identified as 5 on the valve• Ensure SS/HP switch is in the SS position

4” Series Wiring Hydronic

This configuration is designated by #6 terminal on other thermostats

WW

4” Series Wiring Gas

• Gas Applications– For Single Stage wire the red terminals– For Multi-Stage wire the same, but add the second stage (green Y2 and

W2) Ensure MS2 is selected in the configuration menu

• Heat Pump Applications– For Single Stage heat pumps where Y terminal is 1st stage compressor

and W/E terminal is first stage aux heat, W2 is second stage aux heat.• Ensure HP1 is selected in the configuration menu

4” Series Wiring Heat Pump

If you only have one wire for aux/emergency heat install jumper W/E W2

4” Series Navigation

Day of Week

Time of Day

Heat/Cool/Off Button

Fan Auto/On or Run Sched Button

Run, Schedule or Menu Button

Hold Button

Auto Sched Button

Battery Status = Full Charge = Half Capacity = Replace Batteries

Temperature or ConfigAdjustment Buttons

Actual Room Temperature

Desired Temperature

4” Series Entering System Configuration

Most technical service calls are the result of improper system configuration

1. System must be in HEAT or A/C Mode

2. Press and hold the MENU button for five seconds

Menu # HP SS

Displayed(Default)

Press Δ or to Select From Listed Options Comments

1 1   (O) On b On Reversing Valve Output (SS/HP switch must be in HP position)

2 2 1 P (2) P 3, P 0 Selectable Programs Per Week

3 3 2 (OFF) CS On CS Select Cool Savings on or off

(3) 6, 5, 4, 2, 1 Selects Cool Savings value 1 (low) to 6 (high)

4 4 3 (On) E (OFF) E Selects Energy Management Recovery (EMR) on or off

5   4 (ME) CR Heat

FA, SL Adjustable Anticipation Heat (SS/HP switch is at the SS position)

6   5 (FA) CR Cool

SL Adjustable Anticipation Cool (SS/HP switch is at the SS position)

7 5   (FA) CR Heat Pump

SL Adjustable Anticipation (Heat Pump) (only when SS/HP switch is at the HP position)

8 6 6 (OFF) CL On CL Compressor Lockout Time

9 7 7 Auto HeatCool Off

Heat Cool Off,Heat Off, Cool Off,

Auto Off

System Mode Configuration

10 8 8 (On) L OFF L Selects Display Light on or off

11 9 9 0 1 HI, 2 HI, 3 HI, 4 HI,1 LO, 2 LO, 3 LO, 4 LO

Adjustable Ambient Temperature Display

12 10 10 F C Selects Fahrenheit/Celsius Temperature Display

13 11 11 (OFF) Change

Filter

On Change Filter Selects Filter Change-out Indicator

Change Filter 200 h

25 h to 1975 h in25-hour increment

When on, selects time in 25 hour increments 25-hour increment

14 12 12     Returns to Normal Operation

4” Series Configuration Menu Denotes Critical to the Application

1F80 and 1F86 Single Stage

4” Series Configuration Menu Denotes Critical to the Application

Menu #

MS/SSDisplayed(Default)

Press Δ or to Select From

Listed Options Comments1F85 1F83 HP

1 1 ● ● (OFF) Lk L Selects Keypad Lockout.

2 2 ● ● (000) Lk 001 to 999 Selects Keypad lockout combination number

3 3 ● ● (MS 2) HP 1, SS 1 Selects Multi-Stage (MS 2 No Heat Pump), Heat Pump 1 (HP 1, 1 compressor), or Single Stage (SS 1)

4 4   ● (GAS) ELE Select Gas or Electric heat

●   (ELE) GAS

5 5 ● ● (0) CS 1, 2, 4, 5, 6 Selects Cool SavingsValue Value 0 Disables Feature

6 — ● ● (On) E OFF Selects Energy Management Recovery (EMR) On or OFF.

7 6   ● (ME) CR Heat

SL, FA Adjustable Anticipation: Selects heating cycle rate for MS or SS

8 7 ● ● (ME) CR Cool

SL, FA Adjustable Anticipation: Selects the cycle rate for cooling

9 8 ● ● (ME)CR Heat

Pump

SL, FA Adjustable Anticipation Selects the cycle rate for Heat Pump

10 9 ●   (FA) CR Emer

SL Selects the cycle rate for Emergency mode andAuxiliary stage

11 10 ● ● (OFF) CL CL On Compressor Lockout Time

12 11 ● ● Heat-Auto-Cool-Off

Auto-Off, Cool-Off, Heat-Off

Selects System Mode Configuration

13 12 ● ● (On) dL dL OFF Selects Display Light On or OFF

1F83 and 1F85 Multi Stage or Heat Pump

Menu #

MS/SSDisplayed(Default)

Press Δ or to Select From

Listed Options Comments1F85 1F83 HP

14 13 ● ● 0 1 thru 4 HI, 1 thru 4 LO

Adjustable Ambient Temperature Display

15 14 ● ● °F °C Selects Fahrenheit/Celsius Temperature Display

16 15 ● ● L (90) Heat L 62 to L 89 Selects Limited HEAT Range

17 16 ● ● L (45) Cool L 46 to L 82 Selects Limited COOL Range

18 — ● ● P3 P0, P2 Defaults for 5-1-1 programming (P3) but non- programmable (PO) or 5-2 programming (P2) is available on most models.

19 — ● ● (On) AS Heat

OFF Automatic Schedule for heat mode. 1F85 only.NA to Cool only system.

20 — ● ● (On) AS Cool

OFF Automatic Schedule for cool mode. 1F85 only.NA to Heat only system.

21 17   ● (On) FA Heat

OFF Fast Heat option may be disabled by selecting OFF.NA to SS config. NA to Cool only system.

22 18   ● (On) FA Cool

OFF Fast Cool option may be disabled by selecting OFF. NA to SS config. NA to Heat only system.

23 19 ● ● (OFF) CA On Selects active Comfort Alert On or OFF.

24 — ● ● (On) dS OFF Selects Automatic daylight Savings Time optionOn or OFF. 1F85 only

25 20 ● ● (OFF) Change

Filter

On Selects Filter Change-out Indicator On or OFF.

26 21 ● ● (200 h) Change

Filter

25-1975 h Change Filter time in 25 hour increments. This menu only appears if On is selected in above.

27 22 ● ● (o) On Cool (b) On Heat Selects operation of the reversing valve terminal(O/B) output as an O or B terminal.

4” Series Configuration Menu Denotes Critical to the Application

1F83 and 1F85 Multi Stage or Heat Pump

4” 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

4” Series Set Time, Year, Month and Date

1. Press MENU and then TIME button once. The display will show the hour only.

2. Press and hold either the UP/DOWN button until you reach the correct hour and the AM/PM designation

3. Press Time button once. The display will show the minutes only.

4. Press and hold either the UP/DOWN button until you reach the correct minutes

5. Press TIME again1. 401 will show the day of the week. Press

the UP/DOWN button to change the display to the correct setting.

2. 402 additional presses of TIME will advance the display to show the year, month and date of month. Press the UP/DOWN button to correct settings for each.

6. Press Run to exit the Time mode.

UP/DOWN

Menu/Run

Time

4” Configure Program Options

• System must be set for Heat or Cool. Press the Menu button for at least 5 seconds.

• The display will display step #1 in the configuration menu• Press the UP button to the configuration Menu No• Select the programs per week by pressing UP/DOWN button

– “0” for non-programmable– “2” for a 5+2– “3” for 5+1+1

• Note: Thermostat defaults to 4 programs per day

• Press the Run buttonModel

NumberConfiguration

Menu No.Programs per

weekPrograms per day

1F80 02 5+1+1 (3)5+2 (2) 0 (0)

4

1F85 18 5+1+1, (3)5+2 (2) 0 (0)

4

4” Series How To Set A Program

Press SYSTEM button to HEAT or COOL1. Press the MENU button and then press

SCHEDULE

2. The top of the display will show the day(s) being programmed. The time and temperature (flashing) are also display. “1” will also be display to indicate the period

3. Press UP/DOWN button to change the temperature to your selected temperature

4. Press TIME button, time will flash

5. Press UP/DOWN button to adjust the start time for the period1. The time will change in 15 minute increments

6. After you have set the time and the temperature for the period, press SCHEDULE to advance to the next program period

7. Repeat steps 2 through 8 until all of the program times and temperatures are set for all program periods on that day

8. Press SCHEDULE to the next day and repeat steps 2 through 9

9. Press Run to complete

System/Time

Menu/Schedule/

Run

UP/DOWN