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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