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Emerson 6” SeriesThermostats

Homeowner Support Hotline: 800-284-2925

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

Installation Instructions for detailed information.

Application Coverage by System Model

Stages Heat / Cool by System

Applications Programming OptionsPower 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 Zon

e Valu

e

Millivolt Compatible

Humidity Control

Program Days per Week

Program Periods per Day

Hardwire Battery

Power Assist

Universal - Wireless 1F98EZ-1621 1/1 2/2 4/2 ✓     H,D 7, Ø 4, 2, Ø B

Universal

1F95-0680 Commercial 1/1 2/2 4/2 ✓ ✓ ✓   7, 5+1+1, Ø 4, 2, Ø B,H,PA

1F95EZ-0671 Easy Reader 1/1 2/2 4/2 ✓ ✓ ✓   Ø, 7 4, 2, Ø B,H,PA

1F95-0671 1/1 2/2 4/2 ✓ ✓ ✓   7, 5+1+1, Ø 4, 2, Ø B,H,PA

Emerson 6” ThermostatsSelecting the Right Thermostat for the Job

• Applications

• Wiring

• Configuration

• Programming

• Featured Products In This Module– 1F98EZ-1621

• 4 Wire Universal

– 1F95-0680• Commercial, Universal

– 1F95EZ-0671• Easy Reader, Universal

6” Series Thermostats Agenda

Comfort Interface

SensorEquipment Control

Staging By System TypeProgramming OptionsApplications

Terminal Identification Part Number

Look at the Box for Detailed Information

• Intuitive operating choices

– One Button – One Function

• Universal Up to 4 heat / 2 cool

• Large, Easy to Read Characters

– Easy to view without glasses

• Simple-to-use Non-Programmable Thermostat

– 7-day programming can be enabled if desired

• Dual Fuel Capable with Smart Fuel™ Logic Program

– No outdoor sensor need for Furnace / Heat Pump Systems

– No Fossil Fuel Kit Required

6” Series Thermostat Overview

6” SeriesSpecification Sheets Contain Detailed Information

6” Series Applications

Application Stages Programming Feature Type

Universal 4/2

7, 0 Wireless EZ Install 1F98EZ-1621

7, 5+1+1, 0 Commercial 1F95-0680

0, 7 Easy Reader 1F95EZ-0671

7, 5+1+1, 0 6" Screen 1F95-0671

6” Series Terminal Designations

6" Series Universal, Conventional or Heat PumpTerminal Description 1F95-0671 1F95EZ-0671 1F95-0680 1F98EZ-1621

  Programming 7, 5+1+1, 0 0, 7 7, 5+1+1, 0 0, 7

W/E

Stages 4/2 4/2 4/2 4/2

1st. Stage Heat (SS1, 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

●

R 24 VAC Hot (TH)       ●

C 24 VAC Common (TR) Wire

●

L Diagnostics ●

+, S, - Remote Sensor Terminals ●   ●  

6Wet Heat, 3 Wire Zone Valve

● ● ●  

Hum, Dehum(2) Humidity Terminals       ●

A1 Economizer     ●  

Note: Outdoor Sensor Easy Reader CommercialWireless Easy

Install

6” Series Heat Pump / Dual Fuel Staging Detail

Stage+HP1

Heat ModeHP2

Heat Mode

HP2 w/2 stage Dual Fuel

Heat Mode

1st Y1 Compressor Y1 Compressor Y1 Compressor

2nd W/E Aux, stage 1 Y2 Compressor Y2 Compressor

3rd W2 Aux, stage 2 W/E Aux, stage 1 W/E 1st Stage Gas

4th W2 Aux, stage 2 W2 2nd Stage Gas

Dual fuel option de-energizes any compressor stage when auxiliary heat is energized

• Power Stealing Assist extends battery life significantly by drawing “stealing” small amounts of voltage from the heat (W) or cool (Y) circuit. Power Stealing Switches on the back of the thermostat should be left in the “ON" position for most systems.

• On a small number of heating or cooling systems with high impedance electronic modules you may observe one of the following conditions:– The furnace , draft inducer or fan run or continue running when the

thermostat is not calling for operation. Switch the “W” dip switch to OFF. – If the condition continues to occur switch the “Y” dip switch to OFF to

disable Power Stealing Assist completely and operate the thermostat on batteries only.

Power Stealing Assist Extends Battery Life

If the Power Stealing Assist method is not compatible with your system both switches can be turned off and the thermostat will operate normally.

Not available on the Easy Reader 1F95EZ-0671

6” Series Wiring for Conventional Systems- AC Furnace (No Heat Pump)

**

* Common connection optional – required for diagnostic indicator** For two transformer systems remove the jumper

Single Stage (SS) in RedMulti-Stage (MS) add Orange

#6 Terminal is for a 3 wire zone

valve

6” Series Wiring Heat Pump

Single Stage (HP1) in RedMulti-Stage (HP2)) and Green

**

6” Series Easy Viewer Configuration

Outdoor Unit Type

Thermostat Configuration Options Thermostat Applications

# Stages Heat / Cool

Air Conditioner

Single Stage 1 (SS1)No Heat Pump –

Single Stage Compressor

• Gas • Oil Electric• Heat Only / Cool Only • Split Heat/Cool Systems• 2 or 3 wire Hydronic Zone (Hot

Water or Steam) Systems • 24 VAC or Milli-volt

1 / 1

Multi Stage 2 (MS2)No Heat Pump –

Two Stage Compressor2 / 2

Heat Pump

Heat Pump 1 (HP1)Heat Pump –

Single Stage Compressor

• Single Stage Compressor Heat Pump Systems

• Up to Two Stages Aux/Emergency Heat

3 / 1

Heat Pump 2 (HP2)Heat Pump –

Two Stage or Two Compressor

• Two Stage or Two Compressor Heat Pump Systems

• Up to Two Stages Aux/Emergency Heat

4 / 2

Four Thermostats in One

6” Series Navigation

Battery Status = Full Charge = Half Capacity Change = Replace Batteries

Indicates Heat PumpSystem (does not appearfor multi-stage orsingle stage

Heat ButtonPress to selectHeating

Off ButtonPress to turn off bothHeating and AirConditioning systemsand Fan

Fan ButtonPress to select Fan operationFan = Fan On/Continuous Fan = Fan Auto – Fan runs onlyduring a call for Heat or AirConditioning (typical setting)

Fan

A/C ButtonPress to selectAir Conditioning

Button LabelsSolid colored labelsIndicate selection is On.Non-solid or outlined labelsIndicate not selected of Off.(Heat is on in this example)

Actual Room Temperature

Desired Temperature

Run ButtonMenu Button

Temperature AdjustmentButtons

Aux

6” Entering System Configuration

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

2. Press and hold the MENU button for five seconds

Most technical service calls are the result of improper system configuration

After steps 1 and 2, Press RUN to get the system running quickly

MENU ITEMDISPLAY

(DEFAULT) OPTIONS COMMENTS

System Configuration (MS 2)SS1, MS2, HP1, HP2

Installer Set

Electric Heat Fan (GAS) GAS, ELE Installer Set

1. Choose System

2. Select Fan Function

6” Application Specific Versus Customization—Don’t Go Overboard!

Outdoor Unit Type

Thermostat Configuration Options

Air Conditioner

Single Stage 1 (SS1)No Heat Pump – Single

Stage Compressor

Multi Stage 2 (MS2)No Heat Pump –

Two Stage Compressor

Menu ItemDisplay

(Default) Options Comments

System Configuration

(MS 2)SS1, MS2, HP1, HP2

Installer Set

Electric Heat Fan (GAS) GAS, ELE Installer Set

Choose Your System

Press Up / Down to select system type

Press MENU to go to Step 2

Menu ItemDisplay

(Default) Options Comments

System Configuration

(MS 2)SS1, MS2, HP1, HP2

Installer Set

Electric Heat Fan (GAS) GAS, ELE Installer Set

Select Fan Function

If there is Gas Heat in the system, leave on Gas (default)

Press Up / Down to select

Press Menu to go to additional configuration

options

Press Run to complete initial configuration

Configuration Punch List

Record settings of key items for Homeowner Reference

MENU ITEMThese Menu Items MUST be correct for the applications! NOTE:

Item Numbers are different depending on application selected.

SS1 MS2

(Fossil Fuel)

HP1 HP2

(Heat Pump)

Displayed(Default)

Press Δ or to Select

From Listed Options

Comments

1 1 (MS 2) HP 1, HP 2, SS 1

Selects Multi-Stage (MS 2 No Heat Pump), Heat Pump 1 (HP 1, 1 compressor),

Heat Pump 2 (HP 2, 2 compressor or 2 speed compressor), or Single Stage (SS 1)

2 2(GAS) for SS

or MSELE

GAS setting: furnace controls the blowerELE setting: thermostat controls the blower

12 12 P (0) 7 Defaults to P (0) non-programmable P (7) is 7-day programming

13 13 PS (2) 4Selects Program either 2 or 4 periods per day:

– 19

dF (0) 1 to 9Selects dF (dual Fuel) setting. 0 is Off (If dual Fuel option is required, a

selection of 5 is recommended)

Cd(60)

0 to 99 Selects compressor delay in seconds when dF is greater than 0

18 20 A/C On (o) Heat On (b)Selects operation of the reversing valve terminal (O/B) output as an O

or B terminal

6” Configuration Items That Are APPLICATION CRITICAL

Denotes Critical to the Application

Configuration Menu, Denotes Critical to the Application Denotes not application critical but an option you may want to consider

MENU ITEMDISPLAY DEFAULT OPTIONS COMMENTS

1. System Configuration

(MS 2)HP1, HP2, SS1

2. Electric Heat Fan

(GAS) ELE

3. EMR E (On) OffNot enable in non-programmable

4. Heat Cycle Rate Cr HEAT (ME) SL, FA SS1, MS2 only

5. Heat Pump Configuration Cycle Rate

Cr Heat / A/C (ME)

SL, FA HP1, HP2 only

6. A/C Cycle Rate or Aux Cycle Rate

Cr A/C (ME) orCR Aux Heat A/C Off

SL, FASL

SS1, MS2 onlyHP1, HP2 only

7. Compressor Lockout Time

CL (OFF) CL ONCompressor Lock Out Engaged

EMR starts system before program time

Application Specific Set By Installer

Configuration Options

MENU ITEM DISPLAY DEFAULT OPTIONS COMMENTS

8. System Mode Configuration (Heat, A/C, Off)

Heat, Off, Fan/Heat, Off/ A/COff

Installer Set

9. Compressor Optimization CO (OFF) On Installer Set

10. LCD Display Light dL(ON) OFF Selects Display Light

On or Off

11. Temperature Display Adj. Hi (0) 1 to 5 Hi or LO Adjustment of

Temperature Display

12. °F/°C Selection (°F) °C Fahrenheit/Celsius

CO gives you a Fan On / Off delay in cooling

Configuration Options

MENU ITEMDISPLAY DEFAULT OPTIONS COMMENTS

14. Schedules per week

P (0) 7Ships as Non-Programmable

15. Periods per day PS(2) 4 Number of Periods/Day

15. Fast HEAT HEAT FA (On) Off Option to Disable

16. Fast A/C A/C FA (On) Off Option to Disable

17. Daylight Savings Time

dS (On) Off Automatic Time Adjustment for Daylight Savings Time

18. Temp Range Heat Limit

HL (99) 62 - 98Limit the amount of temperature change allowed19. Temp Range A/C

LimitLL (45) 46-82

Aux. heat comes on if the temp is manually raised a few degrees

Control energy costs and childproof a thermostat

Configuration Options

MENU ITEMDISPLAY

(DEFAULT) OPTIONS COMMENTS

20. Dual Fuel Setting plus DF Compressor Delay

dF (0)Cd (60)

1 to 900 to 99

Selecting 1 to 9 enables Dual Fuel Option

21. O/B Output Configuration

On A/C (O) On Heat (B)O defaults to heatB defaults to cool

22. Exit Menu

Application Specific Set By Installer (HP1 or HP)

Two Options for Staging

1. Smart Logic (Computed Staging) – Easy Viewer tracks system performance

and calculates optimum time to bring on additional stages (0 to 30 minutes) .

• Note: Depending on system performance the time for staging will vary depending on the algorithm software. The calculation is not purely time nor temperature based. Staging times are going to vary from day to day.

• Gives homeowner the choice of cost savings or comfort

2. Fast Second Stage (Optional feature)– Brings additional heat stage when

temperature is manually raised 3°F– Gives homeowner optimal comfort

For initial startup, configure for Fast Second Stage to save time evaluating system operations

Staging Logic versus Outside Sensor

• Dual Fuel Applications (Optional)– Easy Viewer uses its Smart Logic to manage coordination of heat pump

and furnace operation. When the Dual Fuel stages are called for the Easy Viewer will shut down the compressors on the heat pump.

Without the use of an outdoor sensor and a fossil fuel kit

• If you normally use an outdoor sensor and a fossil fuel kit for dual fuel applications the Easy Reader is a great solution!

• Think of the time and money you will save on the next installation.

6” Dual Fuel Settings—No Sensor Req.

• The Dual Fuel Logic allows control of a heat pump with fossil fuel backup heat without the use of a fossil fuel kit. When fossil fuel is called for the thermostat will turn off the compressor and switch to gas heat automatically using the Dual Fuel Logic algorithm.

• Access the Configuration Menu Step 20 – The dual fuel setting options range is 0 to 9

• 0 is default Off allowing electric heat to be used

– Settings of 1 to 9 is a value used in the software algorithm.• Up for Comfort

– Increasing the value up to the max of 9 will result smaller staging separation

• Down for Energy Savings– Decreasing the value to a minimum of 1 will result in larger separation

• Select Compressor Delay – When dF is enabled, the shut down of the compressor(s) is delayed for a time period after the auxiliary stage is energized. This delay, Cd, is factory set at 60, but can be set in the range of 0 to 99 seconds by using the PLUS or MINUS touchpad's .

6” ProgramWorksheet

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 with the homeowner. Ensure they have the Homeowner Support Hotline: 888-616-0030

6” Home Screen

Programmable Mode

Day of Week

Time of Day

Programmed Period

Button used for Scheduling

Buttons used for Forward or

Back

AUX, Heat Pump Only (to energize AUX press and hold HEAT button

for 5 seconds)

Mon12:24A

Day

Menu

AUX

6” Set Time and Day

1. In Heat or AC, press Menu button

2. Press the Time button to display hour and A or P

3. Press the UP/DOWN button to set correct hour and AM or PM

4. Press Time to display minutes5. Repeat steps 3 and 4 to set

minutes, year, month and day of week

6. Press Run to return to home screen

Time Run

Menu/

UP/DOWN

6” 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• “7” for independent program days

• Press the UP button to the configuration Menu No – Select the programs per day by pressing UP/DOWN button

• “2” for Morn/Eve program periods per day • “4” for Morn/Day/Eve/Night program periods per day

• Press Run

Heat Adv Day Time Run

Sched

72Day

6:00 P

Mon

Sched

Menu

6” How to Set A Program

1. In Heat mode, press the MENU button to display additional button choices.

2. Press Sched button. The display will show the day being programmed and the time and desired temperature for the period. Either “Day” for two period configuration or “Morn” for four period configuration will be displayed to indicate the period. “Heat” is displayed indicating the mode being programmed.

3. Press the UP/DOWN button to change the temperature to your selected temperature for the 1st. Heating period.

4. Press the TIME button to toggle between Time and Temperature. Press the UP/DOWN buttons to adjust the start time for the period in 15 minute increments.

5. Press Sched to advance to the next program period.

6. Repeat steps 3 through 5 until all of the program times and temperatures are set for all program periods for that day.

7. Use the Copy button to copy current day’s program to any other day or press Adv Day and repeat steps 3 through 6 until all programs are entered.

8. Press Run to complete programming

Time Run

UP/DOWN

Features Your Customer Should Be Aware Of

• Auxiliary Heating (Equivalent to Emergency Mode)– To turn on – Hold Heat button for 5 seconds– (Heat Pump) changes to bold (Aux Heat On)

• Temporary Temperature Hold (2 hours)– Press the Up or Down button to change the temp.

• Permanent Temperature Hold (Indefinitely)– Press the Up or Down button to change the temp.

– Press the Hold button to complete

• Systems Diagnostics– “Call for Service” will display if your

system has diagnostic capabilities and is wired to the “L” terminal

AuxAux

Power to “L” triggers“CALL FOR SERVICE”

Troubleshooting Tips

• “My thermostat brings on 2nd stage too fast! I don’t want to use the expensive back-up heat”– Solution: Homeowner needs to lower temperature settings

to avoid use of that stage of heat.

• “My thermostat won’t bring on 2nd stage, even when I raise the temperature a few degrees, for 15 or 20 minutes sometimes”– Solution: Turn on the fast 2nd stage.

• “I’ve been timing the thermostat to see when it brings on the back-up heat and writing it down. This thing is possessed”– Solution: Put down the stop watch. It is a complicated

calculation, not solely time or temperature based.

Some Things To Remember

• Most common mistake is not choosing correct configuration for the application– SS, MS, HP1, HP2

• Easy Reader does not have Staging Indicators– Designed intentionally for simplicity of operation

• Easy Reader ships as a Non-Programmable– Ask the homeowner if they want programmable

• Dual Fuel can be used on both HP1 and HP2– Some think it is only for HP2