EMERSON White Rodgers 1F97-1277 Non-Programmable Thermostat Installation and Operating Instructions



EMERSON White Rodgers 1F97-1277 Non-Programmable Thermostat 




Heat Pump (No Aux. or Emergency Heat) Yes
Heat Pump (with Aux. or Emergency Heat) Yes
Systems with up to 3 Stages Heat, 2 Stages Cool Yes
Heat Only Systems Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces Yes
Cool Only Systems Yes
Gas or Oil Heat Yes
Electric Furnace Yes
Hydronic (Hot Water) Zone Heat – 2 Wires Yes
Hydronic (Hot Water) Zone Heat – 3 Wires Yes
Wired Remote Temperature Sensor (Indoor/Outdoor) Yes
Dual Fuel Feature (Heat Pump Mode) Yes


Model Programming  Choices
1F95-1277 Non-Programmable 5/1/1 Day 7 Day


Electrical Rating:

  • Battery Power mV to 30 VAC, NEC Class II, 50/60 Hz or DC
  • Input-Hardwire . 20 to 30 VAC
  • Terminal Load. 1.5A per terminal, 2.5A maximum all terminals combined
  • Setpoint Range. 45 to 99°F (7 to 37°C)
  • Differential (Single Stage). Heat 0.6°F; Cool 1.2°F
  • Differential (Multi-Stage). Heat 0.6°F; Cool 1.2°F
  • Differential (Heat Pump). Heat 1.2°F; Cool 1.5°F
  • Operating Ambient 32°F to +105°F (0 to +41°C)
  • Operating Humidity. 90% non-condensing max.
  • Shipping Temperature Range. -4 to +150°F (-20 to +65°C)
  • Dimensions Thermostat 4-9/16″H x 5-13/16″W x 1-3/16″D

To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam-age, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.

This product does not contain mercury. However, this product may replace a product that contains mercury. Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury. Wearing non-absorbent gloves, clean up any spilled mercury and place in a sealed container. For proper disposal of a product containing mercury or a sealed container of spilled mercury, place it in a suitable shipping container. Refer to www.white-rodgers.com for location to send the product containing mercury.


Thermostat installation and all components of theThermostat installation and all components of theThermostat installation and all components of theThermostat installation and all components of theThermostat installation and all components of the control system shall conform to Class II circuits percontrol system shall conform to Class II circuits percontrol system shall conform to Class II circuits percontrol system shall conform to Class II circuits percontrol system shall conform to Class II circuits per the NEC code.the NEC code.the NEC code.the NEC code.the NEC code.

Remove Old Thermostat

A standard heat/cool thermostat consists of three basic parts:

  1. The cover, which may be either a snap-on or hinge type.
  2. The base, which is removed by loosening all captive screws.
  3. The switching subbase, which is removed by unscrewing the mounting screws that hold it on the wall or adapter plate. Before removing wires from old thermostat, label each wire with the terminal designation from which it was attached. which it was attached Disconnect the wires from the old thermostat one at a time. Do not let wires fall back into the wall.

Installing New Thermostat

  1. Pull the thermostat body off the thermostat base. Forcing or prying on the thermostat will cause damage to the unit.
  2. Place base over hole in wall and mark mounting hole locations on wall using base as a template.
  3. Move base out of the way. Drill mounting holes. If you are using existing mounting holes and the holes drilled are too large and do not allow you to tighten base snugly, use plastic screw anchors to secure the base.
  4. Fasten base snugly to wall using mounting holes shown in Figure 1 and two mounting screws. Leveling is for appearance only and will not affect thermostat operation.
  5. Connect wires to terminal block on base using appropriate wiring schematic (see diagram sheet 37-6808).
  6. Push excess wire into wall and plug hole with a fire resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.
  7. Carefully line the thermostat up with the base and snap into place

Battery Location
2 “AA” alkaline batteries are included in the thermostat at the factory with a battery tag to prevent power drainage. Remove the battery tag to engage the batteries. To replace batteries, set system to OFF, remove thermostat OFF from wall and install the batteries in the rear along the top of the thermostat (see Figure 1). For best results, use a premium brand “AA” alkaline battery such as Duracell® or Energizer®EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-1


Refer to equipment manufacturers’ instructions for specific system wiring information. After wiring, see the CONFIGURATION section for proper thermostat configuration. For wiring diagrams, see 37-6808. The wiring diagrams shown are for typical systems and describe the thermostat terminal functions.


  • B . . . . . . . . . . . . . . . . . . Changeover valve for heat pump energized constantly in heating
  • O . . . . . . . . . . . . . . . . . . Changeover valve for heat pump energized constantly in cooling and off
  • Y2 . . . . . . . . . . . . . . . . . . 2nd Stage Compressor
  • Y . . . . . . . . . . . . . . . . . . Compressor Relay
  • G . . . . . . . . . . . . . . . . . . Fan Relay
  • RC . . . . . . . . . . . . . . . . . . Power for Cooling
  • RH . . . . . . . . . . . . . . . . . . Power for Heating
  • C . . . . . . . . . . . . . . . . . . Common wire from the secondary side of cooling (Optional). Required for fault indication, continuous backlight operation or remote temperature sensor operation
  • L . . . . . . . . . . . . . . . . . . Malfunction indicator for systems with malfunction connection
  • 6 . . . . . . . . . . . . . . . . . . Powered closed 3rd wire for 3-wire zone valve
  • W/E . . . . . . . . . . . . . . . . . Heat Relay/Emergency Heat Relay (Stage 1)
  • W2 . . . . . . . . . . . . . . . . . . 2nd Stage Heat (3rd Stage Heat in HP2)
  • Blank . . . . . . . . . . . . . . . . . Blank – . . . . . . . . . . . . . . . . . . . Common (DC) for wired remote temperature sensor
  • S . . . . . . . . . . . . . . . . . . Frequency signal from remote temperature sensor
  • + . . . . . . . . . . . . . . . . . . Power (DC) to remote temperature sensor

Single Stage Connections

  • Refer to equipment manufacturers’ instructions for specific system wiring information.
  • This thermostat is designed to operate a single-transformer or two-transformer system.
  • You can configure the thermostat for use with the following systems: Single-stage gas, oil or electric.
  • HEAT PUMP TYPE 1 (HP 1). Single-stage compressor system; gas or electric backup.
  • After wiring, see the INSTALLER CONFIGURATION section for proper thermostat configuration.

Single Stage System with Single Transformer



Single Stage with Two Transformers



If continuous backlight or hardwired power input are desired but do not function in both HEAT and COOL modes, cut the heating transformer 24V wires and tape off. Connect the neutral circuit disconnected from the heating transformer to the neutral circuit of the cooling transformer. Disconnect the wire to the RH terminal and install a jumper between RH and RC. Depending on the system requirements, replace the cooling transformer with a 75VA class II transformer if needed.

Heat Pump Systems



NOTE ➀: Connection for Call for Service diagnostic indicator compatible with mechanical or electronic condenser control with Comfort AlertTM.



Home Screen Description


Programming and Configuration Items


  1. DisplaysEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-3and “Keypad Lockout” Keypad Lockout when in keypad
    lockout mode. DisplaysEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-3and “Temperature Limit” Temperature Limit and “Keypad Lockout” Lockout when limited range is activated and locked. Displays only “Temperature Limit” Temperature Limit when limited range is activated.
  2. Indicates period of day being programmed.
  3. RUN SCHEDULE (run program) button.
  4. SET TIME button or HOLD temperature button.
  5. Displays “Change Filter” Change Filter when the system has run for the programmed filter time period as a reminder to change or clean your filter.
  6. COPY button or INSTALLER CONFIG button
  7. CLEAN DISPLAY button allows 30 seconds to wipe off the display or ADVANCE DAY button for programming.
  8. Used in programming to set time and in configuration menu to change selections.
  9. “Hold Until” Hold Until indicates the time when a temporary hold period will end.
  10. “Hours”and “Days”displays during steps in installer configuration.
  11. The words “Hold At” are displayed when the Hold At thermostat is in the HOLD mode. “Temporary Hold At” is Temporary Hold At displayed when the thermostat is in a temporary HOLD mode.
  12. “Call For Service” Call For Service indicates a fault in the heating/ cooling system. It does not indicate a fault in the thermostat
  13. “System On” System On indicates when heating or cooling stage is energized. “+2” also indicates when a second stage +2 is energized.
  14. “Copy”indicates the copy program feature is being used during programming.
  15. A steady “Cool Savings” Cool Savings display indicates the feature is enabled in the installer menu. A flashing “Cool Savings” Savings display indicates the feature is active.
  16. “Remote” Remote indicates that the indoor remote temperature sensor, is being accessed. “Outdoor Remote” Outdoor Remote indicates the outdoor remote temperature sensor is being accessed.


To enter the menu: Press the Menu touch key. Press and hold for 5 seconds the u Installer Config Installer Config touch key. This displays menu item #1 in the table below. Press EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5to advance to the next menu item orEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-10to return to a previous menu item. Press EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-9or EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-8 to change a menu item.

Menu Reference Number Program- mable Non- Program- mable Press Button Displayed (Factory Default) Press       or to select from listed options  


1 1 1 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 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.
2 2 2 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 (ELE) GAS GAS setting: furnace controls blower.ELE setting: thermostat controls blower.
3 3 3 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Days, (7) P 5-1-1 or 0 Programs per week. (0 = non-programmable)
4 4 NA EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 PS (4) 2 Program periods per day.4 = Morning, Day, Evening, Night 2 = Day, Night
5 5 4 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Cool-Off- Heat-Auto Cool-Off-Heat, Off-Heat, Cool-Off System switch configuration in non heat pump mode.
Cool-Off-Heat-Emer-Auto Cool-Off-Heat-Emer,Off-Heat-Emer, Cool-Off System switch configuration, heat pump mode.
6 6 NA EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 (On) OFF Selects Energy Management Recovery, E (with programming option on)
7 7 5 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Cr, Heat (FA) SL Selects Adjustable Anticipation, cycle rate, Heat
8 8 6 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Cr, Cool (FA) SL Selects Adjustable Anticipation, cycle rate, Cool
9 9 7 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Cr/AU, Emer (FA) SL Selects Adjustable Anticipation, cycle rate auxiliary, (This item isonly to appear if HP 1 or HP 2 is selected above).
10 10 8 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 CL (OFF) On Selects Compressor Lockout.
11 11 9 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 dL (On) OFF Selects Continuous Display backlight & intensity.
12 12 10 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 dL (LO) HI Selects Backlight Intensity.
13 13 11 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 0 4, LO to 4, HI Selects Adjustable Ambient Temperature Display [range -4 (LO) to+4 (HI)].
14 14 12 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 °F °C Selects °F/°C Display (temperature units in Fahrenheit or Celsius).
15 15 13 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 (On) OFF Selects audible Beeper On/Off.
16 16 14 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 dS (On) OFF Selects Daylight Saving Time calculation.
17 17 15 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 AS, Heat (On) OFF Selects Automatic Schedule for comfort temperature Programming,heat mode.
18 18 16 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 AS, Cool (On) OFF Selects Automatic Schedule for comfort temperature Programming,cool mode.
19 19 17 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 CS, (OFF)Cool Savings 1-2-3-4-5-6 Selects Cool Saving Feature & amount.
20 20 18 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 HL, Heat (99) 62-98 TEMPERATURE LIMIT, HEAT (max. heat set point).
21 21 19 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 LL, Cool (45) 46-82 TEMPERATURE LIMIT, COOL (min. cool set point).
22 22 20 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 OFF,Keypad Lockout (total), (partial), Temperature Limit(limited temperature range) Selects Keypad Lockout.
EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 000 001-999 Selects Keypad Lockout Combination (active only if keypad Lockoutis selected).
23 23 21 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 FS, Heat (On) OFF Fast second stage of heat (not available if SS1 is selected above).
24 24 22 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 FS, Cool (On) OFF Fast second stage of cool (not available if SS1 or HP1 is selected above).
25 25 23 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Remote (OFF) On Remote temperature sensor, enable/disable.
EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 In, Remote Outdoor Remote Remote temperature sensor (Indoor/Outdoor).
EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 LS (On) OFF Local temp. Sensor enable/disable (only when Indoor Remote isselected On).
26 26 24 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 dF (5) 5-50 Selects Dual Fuel Feature & set point (in Fahrenheit) (applicable onlywhen HP1 or HP2 is selected).
EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Cd (60) 0-99 Selects Compressor delay in seconds (only when dF is selected >5).
27 27 25 EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 Change Filter(OFF) On Selects Change filter feature
EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 200 Hours 25-1975 (in incrementsof 25 hours) Change filter, duration hours.


  1. This control can be configured for:
    MS2 – Multi-Stage System (2 heat/2 cool)
    HP1 – Heat Pump with one stage of compressor (2 heat/1 cool) HP2 – Heat Pump with two stage compressor or two compressor system, Gas or Electric backup; (Dual Fuel see menu item 26) (3 heat/2 cool)
    SS1 – Single Stage System (3 wire zone see wiring diagram 37-6808A)
  2. GAS or Electric (ELE) fan operation. If the heating system requires the thermostat to energize the fan, select ELE. Select GAS if the heating system energizes the fan on a call for heat. Note: Resetting the thermostat switches the option to ELE.
  3. Programs per week – This control can be configured for eek 7 independent day or 5/1/1 day programming or nonprogrammable modes. Default is 7-day mode. The display indicates “7 Days” as default. Other options ” ys 5 Days” or ” ys 0 Days” can be selected by pressing touch ys keys, EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6. If “0 Days” is selected for non-program- ys mable mode, the step for EMR will be skipped, as this feature will not be available in this mode.
  4. Program Steps per day – Program Steps per day This control can be configured for 4 or 2 program steps per day. Default is “4 PS” and can be toggled between 4 PS and 2 PS by pressing the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6touch keys.
  5. System Switch Configuration (MS2/SS1) – System Switch Configuration (MS2/SS1) This thermostat is configured for Heat and Cool with Auto changeover default (Cool-Off-Heat-Auto). Can be configured as Heat & Cool (Cool-Off-Heat), or Heat Only (Off-Heat), or Cool Only (Cool-Off). When the control is in heat pump configuration (HP1/ HP2), the system switch configuration will have an HP2 additional mode available namely, Emer for Emer Emergency Mode.
  6. Energy Management Recovery (EMR) – (this step is Energy Management Recovery (EMR) skipped if configured as non-programmable). When set to “On” causes the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify.
    Example: Example Let us say, the heating program is 65°F at night and 70° at 7 AM. If the building temperature is 65°F,the difference is 5°F. Allowing 5 minutes per °F rise, the thermostat setpoint will change to 70° at 6:35 AM. Cooling allows more time per °F, because it takes longer to reach temperature.
  7. 7, 8 & 9) Cycle Rate Selection – The factory default setting te Selection is fast cycle (FA Cr) in all modes (Heat, Cool, Emer). To slow cycling (SL, Cr), press touch keys or toggle between FA & SL. The cycle rates are as below different selections:
    Mode Fast rate Slow rate
    Heat 0.6°F 1.2°F
    Cool 1.2°F 1.7°F
    Emer 1.2°F 1.7°F
  8. Select Compressor Lockout (CL) – Select Compressor Lockout (CL) Selecting CL On will cause the thermostat to wait 5 minutes between cooling cycles. This is intended to help protect the compressor from short cycling. Some of the newer compressors have already got a time delay built in and do not require this feature to be activated in the thermostat.
  9. Your compressor manufacturer can tell you if this lockout feature is already present in their system.
  10. When the thermostat compressor time delay is activated, it will flash the set point for up to five minutes.
  11. Select Continuous Backlight – In Select Continuous Backlight low lighting conditions, display backlight improves the display contrast.
    When C terminal is connected, selecting dL On will turn C the backlight on continuously. Selecting dL Off will turn the backlight on momentarily after any key is pressed. When C terminal is not powered (battery only), dL On C enables the momentary backlight whenever a key is pressed.
  12. Select Backlight Intensity – T klight Intensity his thermostat has the ability to provide two selectable intensities of the backlight: HI and LO. Using EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6 touch keys you can toggle the selection between HI and LO.
  13. Select Temperature Display Adjustment 4 LO to 4 HI This allows you to adjust the room temperature display by an amount in the range of -4°F to +4°F in 1° steps by using the or touch keys. Your thermostat was accurately calibrated at the factory, however you have the option to change the display temperature value to match your previous thermostat, if you so prefer.
  14. Select °F or °C Readout – eadout Select the desired temperature unit by pressingEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6. Factory default is °F.
  15. Select Audio Prompting (Beeper) On or Off – Factory default setting is on (b, On). If you wish to turn off the On beeper select OFF.
  16. Select Daylight Saving Time Calculation – T tion his feature will allow the thermostat to calculate the DST automatically and apply it to the Real Time Clock display. Default On. Use or touch keys to select the feature, OFF.
  17. Select Automatic Schedule – T hedule his feature allows programming a “Comfort Temperature” into all program periods with the Auto Schedule key. W hedule hen Heat AS (for AS Heat mode) or Cool AS (for Cool mode) is selected AS On, the Auto Schedule feature is ready to be set.
  18. Off indicates that the feature is not ready to be used or a “Comfort Temperature is already set. See Auto Schedule in Programming section.
  19. Select Cool Savings™: W vings™ ith Cool Savings™ enabled, the thermostat will make small adjustments to the setpoint temperature during periods of high demand to reduce AC system running time and save energy. When the cooling system has been running for more than 20 minutes, humidity in the home will be lower and a higher temperature will feel comfortable. After 20 minutes of run
    time, the thermostat will start increasing the setpoint temperature in steps of less than one degree as the system continues to run. These adjustments will eventually cause the system to satisfy the thermostat to turn the system off and reduce the energy consumption. When the Cool Savings™ feature is active and making adjustments, the display will flash “Cool Savings”. The vings” amount of the adjustments to the setpoint temperature is dependent on the Cool Savings™ value that is set, 1 being the least adjustment and 6 being the most adjustment. With this feature set to OFF, no change will occur when the AC system is continuously running during the periods of high demand. Periods of high demand will normally occur during the late afternoon and early evening on the hottest days of the summer. As demand lessens the adjustments to setpoint temperature are reversed until setpoint temperature returns to normal and “Cool Savings” no vings” longer flashes.
  20. Heat Temperature Limit Range – This feature adjusts e the highest setpoint temperature for heat. The default setting is 99°F. It can be changed between 62°F and 98°F by pressing theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6key. The “temperature limit” icon will be displayed to the left of your setpoint limit temperature when using this feature. The “temperature limit” icon will flash if an attempt is made to adjust the limit temperature beyond the range selected.
  21. Cool Temperature Limit Range – This feature adjusts e the lowest setpoint temperature for cool. The default setting is 45°F. It can be changed between 46°F and 82°F by pressing theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6key. The “temperature limit” icon will be displayed to the left of your setpoint limit temperature when using this feature. The “temperature limit” icon will flash if an attempt is made to adjust the limit temperature beyond the range selected.
  22. Keypad Lockout – This step allows you to select the out type of lockout or limited range security required. If no lockout or limited range security is required, pressEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 to advance the menu.
    Three security settings are available in this menu item. Use theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6keys to select the lockout desired.
  23. Lockout selections are:
    • “Keypad Lockout and L” = Total Lockout. Total Lockout L locks all keys.
    • “Keypad Lockout and P” = Partial Lockout. Partial Lock- P out allows only the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7 keys to operate within your set temperature limits.
    • “Temperature Limit/ e Limit Keypad Lockout” prevents out changing the temperature limits in the Configuration Menu.
    • Keypad Lockout Combination Number Selection Display will read “OFF” “Keypad Lockout”.
    • Skip this step and continue through the configuration menu items 19 thru 22 if you require an Air Filter Change out indicator or Humidifier Pad Change out indicator by pressing theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5 button to advance. Return to this point when you are ready to start your selected lock-out and continue by:
    • PressingEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6keys to select ON.
    • Press EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5. Display will read “000”.
    • Pressing EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6 keys to select your keypad lockout combination number. Note: “000” is not a valid 000 combination choice.
    • Record the number you select for future use.
    • Press EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5to exit the menu. The security feature you select will start in 10 seconds. The system button will remain active for 10 seconds to allow setting Heat, Off, Cool or Auto.
  24. Select Fast Second Stage ON or OFF – In the run e ON or OFF mode, with the fast Heat feature enabled (FA Heat On), if the Heat setpoint temperature is manually raised by 3°F (2°C) or more above the actual temperature using EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-5the second stage will energize immediately. With FA OFF, second stage will not energize until the setpoint temperature is 1°F or more above actual temperature for more than ten minutes. The Fast Cool feature (FA Cool) provides the same controls when the setpoint temperature is lowered.
  25. Select Remote Temperature Sensor – This Select Remote Temperature Sensor control allows one wired remote temperature sensor (indoor, F145-1328, or outdoor, F145-1378) be connected to it and indicates the measured temperature in clock digits. This menu enables you to select the remote sensor and also configure it as indoor or outdoor temperature sensor. Factory default is off. Select Remote On emote On and Remote in (for indoor) or Outdoor Remote. Local Temperature Sensor disable – This is applicable le only when indoor remote temperature sensor is enabled. Factory default is On LS. You can make it On LS Off LS if you LS desire by usingEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6touch keys.Then, only the indoor remote temperature reading will be used for control.
  26. Select Dual Fuel Feature and Setpoint – T e and Setpoint his feature is applicable only in heat pump modes. An outside remote sensor must also be installed. When the outside temperature falls below the selected setpoint temperature, dF, the thermostat will switch to gas heat and shut down dF the compressor. Use theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6 keys to select the desired setpoint temperature in the range of 5 to 50.
  27. Factory default is 5, which disables this feature. See Dual Fuel Temperature and Setpoint in Programming section.
    Select Compressor Delay – When y dF is enabled, the dF 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 Cd to 99.
  28. Select Change Filter Run Time – The Time thermostat will display “Change Filter” e Filter after a set time of blower operation. This is a reminder to change or clean your air filter. This time can be set from 25 to 1975 hours in 25 hour increments. A selection of OFF will cancel this feature. When “Change Filter” is displayed, you can e Filterclear it by pressing Clean Display. In a typical application, 200 hours of run time is approximately 30 days.


Choose the Fan Setting (Auto or On or Prog) Fan Auto is the most commonly selected setting and runs uto the fan only when the heating or cooling system is on.
Fan On selection runs the fan continuously for increased air On circulation or to allow additional air cleaning. Fan Prog will run the fan when the heating or cooling system g is on. In addition, when the thermostat has not called for heat or cool for more than 60 minutes, it will begin to cycle the fan for 10 minutes on and 20 minutes off to improve indoor air quality. This is the Comfort Circulating Fan Feature.

Choose the System Setting
(Cool, Off, Heat, Emer, Auto)
Press the SYSTEM button to select:

  • Heat: Thermostat controls only the heating system. t
  • Off: Heating and Cooling systems are off. f
  • Cool: Therm Cool ostat controls only the cooling system.
  • Auto: Auto Changeover is used in areas where both heating uto and cooling may be required on the same day. AUTO allows O the thermostat to automatically select heating or cooling depending on the indoor temperature and the selected heat and cool temperatures. When using AUTO, be sure to set the O Cooling temperatures more than 1° Fahrenheit higher than the heating temperature.
  • Emer: Setting is available only when the thermostat is configured in HP1 or HP2 mode.

Manual Operation for Non-Programmable Mode
Press the SYSTEM button to select Heat or Cool and use theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7buttons to adjust the temperature to your desired setting. After selecting your desired settings you can also press the SYSTEM button to select AUTO to AUTO allow the thermostat to automatically change between Heat and Cool.

Manual Operation (Bypassing the Program) Programmable Mode

  • Press EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7and the HOLD button and adjust the temperature wherever you like. This will override the program. The
  • HOLD feature b HOLD ypasses the program and allows you to adjust the temperature manually, as needed. Whatever temperature you set in HOLDwill be maintained 24 hours a day, until you manually change the temperature or press Run
  • Schedule to ca hedule ncel HOLDand resume the programmed schedule.

Program Override (Temporary Override)
PressEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7buttons to adjust the temperature. This will override the temperature setting for a (default) four hour override period. The override period can be shortened by pressingEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-8or lengthened by pressing EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-9. Program Override period can range from 15 minutes to 7 days.

Example: If you turn up Example the heat during the morning program, it will be automatically lowered later, when the temporary hold period ends. To cancel the temporary setting at any
time and return to the program, press Run Schedule. hedule If the SYSTEM button is pressed to select AUTO the AUTO thermostat will change to Heat or Cool, whichever ran last. If it switches to heat but you want cool, or it changes to cool but you want heat, press bothEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7 buttons simultaneously to change to the other mode.EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6


Set Current Time and Day

  1. Press Menu key to enter installer menu. Then press Set Time once to indicate hour & A or P designation in clock display.
  2. Press and hold either the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6 touch key until you reach the correct hour and A or P designation.
  3. Press Set Time again to display minutes only in clock display.
  4. Press and hold either theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6touch keys until you reach the correct minutes.
  5. Press Set Time once again to display year.
  6. Press and hold either the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6 touch key until you reach the correct year.
  7. Press Set Time once again to display month.
  8. Press and hold either the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6 touch key until you reach the correct month.
  9. Press Set Time once again to display date of the month along with day of the week at top row (which is automatic).
  10. Press and hold either the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6 touch key until you reach the correct day of the month and day of the week is automatically calculated and displayed at the top row.
  11. Press Run Schedule once; now the display will show the correct time and room temperature.

Automatic Daylight Saving Calculation
The Real Time Clock will adjust automatically for daylight savings time, in the following manner: Increment one hour at 2 AM on the second Sunday of March and decrement one hour at 2 AM on the first Sunday of November. (New DST effective 2007).
The daylight saving feature can be enabled or disabled in installer configuration menu. Default is dS ON (enabled). dS ON After entering installer configuration mode, momentarily pressEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7 touch key until the display indicates dS (in actual temperature digits) and on (default – in clock digits).EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6and keys will toggle display and operation from on to OFF

Programming Tip: Copy Program

When programming your thermostat, you may copy the program from one day to another day or group of days using the Copykey. In 7 day programming mode, a day can be copied to another day or all six other days. In 5/1/1 day programming mode the weekday (Mon – Fri) program can be copied into Sat and Sun or either Sat or Sun.
To copy a program from one day to another:

  1. In Set Schedule mode, enter the program for the day or select the day you wish to copy by pressing Advance Day.
  2. Press Copy.The display will show “Copy”next to the SYSTEMkey and the day of the week that will be copied.
  3. Press Advance Day. Advance Day The day being copied will be indicated and the other days will be flashing.
  4. If you wish to copy to all days skip to next step or press Advance Day Advance Day until the day you wish to copy to is flashing.
  5. Press Copy. “ Copy Copy”will disappear, the day you copied from will disappear and the day(s) you copied to will be on.
  6. If you wish to copy this same program into other days, press Copyand repeat steps 3, 4 and 5.
  7. Press Run Schedule to Run Schedule return to normal operation.
    Fill in the blank schedule on the next page then:

Enter the Heating Program

  1. Press the Menu button and then press Set Schedule.
    Press SYSTEM button to select either “Heat” or ” t Cool” in Cool the system switch area indicating the active mode being programmed. You can switch to the other mode by pressing the system switch at any time.
  2. The top of the display will show the day(s) being programmed. The time and set at temperature are also displayed. “Morning”will also be displayed to indicate the period.
  3. Press EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7 key to change the temperature to your selected temperature for the 1st heating period (Morning).
  4. Press EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6key to adjust the start time for period. The time will change in 15 minute increments.
  5. Press FAN to select AN Auto orProg.
  6. After you have set the time and the temperature for the period to begin, press Set Schedule to advance to the next program period.
  7. Repeat steps 2 through 6 until all of the program times and temperatures are set for all program periods on that day.
  8. Press “Advance Day” to change to the next day and repeat steps 2 through 8.
  9. When programming is complete and all of the times and temperatures match your desired heating schedule, press Run Schedule. The thermostat will now run your program.

Enter the Cooling Program

  1. Press the SYSTEM button until the Cool icon appears.
  2. Follow Enter Heating Program instructions for entering am cooling times and temperatures.

Automatic Schedule

This feature provides a method to program every day with the most popular time and temperature settings using one key. For this feature to be available, the Auto Schedule options (Installer/Configuration menu item 17, AS Heat, or AS Heat item 18, AS Cool) AS Cool must be selected On. To use Auto Schedule, press Run Schedule to be sure you Run Schedule are in normal operating mode. In SYSTEM Heat mode, use theEMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7 keys to select your “Comfort Temperature”.

When your “Comfort Temperature” is selected, press Auto Schedule Schedule key. The key will begin to flash indicating that the feature is ready to store your selected temperature. Press
Auto Schedule a second time to complete the process. The Auto Schedule Auto Schedule key will disappear to indicate that the Auto Schedule command has been accepted.
In Heat mode the thermostat will maintain your “Comfort Temperature” during the Morning, Day and Evening periods and setback 6° for the Night. Morning period will begin at 6:30 AM and Night period will begin at 10:30 PM. To set the Auto Schedule temperature for Cool mode, press SYSTEM to change the mode to Cool and repeat setting the temperature. In Cool mode, the thermostat will maintain your selected “Comfort Temperature” continuously. The “Comfort Temperature” can be temporarily overridden by changing the setpoint temperature using the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-7keys. Once Auto Schedule has been set and the key has disappeared, it can be reset in the Installer/ Configuration menu

Entering Fan Program
In the Set Schedule mode, the FAN key is used to select the FAN fan operation during a program period. The default state of the Fan key is Fan FAN Auto FAN Auto (fan runs during a call for cool but not on a call for heat). It can be changed to FAN Prog FAN Prog (fan runs during a program period). Each press of the FAN key FAN will change the mode of the fan between Autoand Prog. In Prog the Run mode, when a program period that has FAN Prog begins, the fan will turn on and stay on during the complete period. The display will show FAN On Prog. FAN On Prog
In the Run mode, pressing the FAN key will change the fan FAN from Auto (default setting) to Auto On (fan running continuously) On or Prog.When FAN Prog is FAN Prog displayed, the fan will run when the system cycles. If the system does not cycle for more than 60 minutes, the thermostat will turn the fan on for 10 minutes and off for 20 minutes to improve indoor air quality. If the display shows FAN On Prog to indicate the program period FAN On Prog has the fan programmed to run, FAN Prog FAN Prog will override the programmed setting until Run Schedule is Run Schedule pressed or the next schedule period begins.

Energy Saving Factory Pre-Program
The 1F95-1277 therm 1F95-1277 ostats are programmed with the energy saving settings shown in the table below for all days of the week. If this program suits your needs, simply set the thermostat clock and press the RUN button. The table below shows the factory set heating and cooling schedule for all days of the week.

* Wake Up (Morning) Leave For Work (Day) * Return Home (Evening) Go To Bed (Night)
HeatingProgram 6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F
Cooling Program 6:00 AM 75°F 8:00 AM 83°F 5:00 PM 75°F 10:00 PM 78°F

Note: You can eliminate these two program periods in the configuration menu (reference #3) if the building is occupied all day.
Day will change to 6:00 am and can be programmed as required.

Planning Your Program – Important
The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures.
The 1F95-1277 comes configured for 7 day programming and can also be configured for 5+1+1 programming (see configuration section). Factory settings are listed on Monday, Saturday and Sunday. If you are re-programming a 5+1+1 day schedule, pencil in your own times and temperatures directly below the factory times and temperatures.
If you are re-programming a 7 day fill in all lines with the times and temperatures you want.
Keep the following guidelines in mind when planning your program.

  • In Heating, lower temperatures will save energy.
  • In Cooling, higher temperatures will save energy.
  • If you plan on using Auto Changeover,do not program the heating higher than the cooling.

Worksheet for Re-Programming 5+1+1 and 7 Day Program

Heating Program Wake Up (Morning)  Fan Leave For Work (Day)  Fan Return Home (Evening)  Fan Go To Bed (Night)  Fan
MON 6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto
SAT 6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto
SUN 6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto
Cooling Program Wake Up (Morning)  Fan Leave For Work (Day)  Fan Return Home (Evening)  Fan Go To Bed (Night)  Fan
MON 6:00 AM 75°F Auto 8:00 AM 83°F Auto 5:00 PM 75°F Auto 10:00 PM 78°F Auto
SAT 6:00 AM 75°F Auto 8:00 AM 83°F Auto 5:00 PM 75°F Auto 10:00 PM 78°F Auto
SUN 6:00 AM 75°F Auto 8:00 AM 83°F Auto 5:00 PM 75°F Auto 10:00 PM 78°F Auto

Wired Remote Temperature Sensing

One remote temperature sensor can be installed indoor or outdoor and connected to the thermostat by a maximum cable length of 100 meters (300 feet). Terminals +, S and – on the terminal block allow connection of the remote sensor. The thermostat must have 24 VAC Common connection to terminal C for the remote sensor to operate. The remote sensor can be enabled or disabled in the Installer/Configuration menu, item 25. When remote sensor, Remote, is Remote selected Off (factory default), no remote sensor is enabled. When remote sensor is selected On, the next step is to select the remote as indoor, Remote In, or Remote In outdoor, Remote Outdoor. If the Remote Outdoor remote is selected as Remote In, an Remote In additional step will be to select if the temperature shown on the display will be from the thermostat, LS On, or the remote sensor LS On Ls Off. Ls Off In normal operation, when a remote sensor is enabled the time digits of the display will alternate between the time and the remote temperature for three seconds each. Above the remote temperature will be Remote, Remote for indoor sensor or Outdoor Remote, Outdoor Remote for outdoor sensor. If the remote sensor is an indoor sensor and the local display has been disabled, the temperature displayed as the room temperature will be the remote sensor temperature. Sensing Range: Outdoor temperature range is -40 to 140oF Indoor temperature range is 32 oF to 99 oF

Weight of Remote Reading:

The thermostat is designed to receive the temperature of the indoor remote sensor and average or weight, it with the local sensor in the thermostat for each program period. The averaging will be active only when the local sensor and the indoor remote sensor are both functional and enabled in the Installer/Configuration menu. When the thermostat is in the Set Schedule mode, the weight of the indoor sensor will be shown in the current temperature digits of the display. The weight will show as A2 (average A2 and default), H4 (high) or H4 L1 (low). Pressing the EMERSON-White-Rodgers-1F95-1277-Universal-Thermostat-6keys at the same time will change the weight for the program period. The weight of the local sensor is fixed. In normal operation of the thermostat, the current temperature displayed will be the weighted average of the local sensor and the remote sensor using the formula (local sensor weight x local sensor temperature) + (remote sensor weight x remote sensor temperature) / (local sensor weight + remote sensor weight).

Weight of Remote Reading
When in view schedule mode the weight of the indoor remote sensor will be shown in the left actual temperature digits designated as A2 (default for average weight), H4 (high weight) or L1 (low weight). The period (Morning, Day, Evening, Night) will also be shown to the right of the weight value in the actual temperature digits. When in view schedule mode, press and keys at the same time to sequence the indoor remote temperature sensor weight from A2 to H4 to L1 and back to A2 for each of the program period times for each day. (The H4 weight is twice the weight of A2 and A2 is twice the weight of L1).

When Remote In is selected (with Remote selected to On), press key for the display to indicate the status of the local sensor LS On (default for thermostat local sensor operation-al). The and keys will toggle the function and display from LS (shown in actual temperature digits) and On (shown in clock digits) to LS OFF to designate the local sensor is disabled. The local sensor may be disabled only if the indoor remote sensor is enabled and functional. If the indoor remote sensor is disabled or not functional, the local sensor will automatically enable and display in the run schedule mode. The actual temperature displayed in the run mode is the mathematical weighted sum of the two temperature sensors – local and indoor remote. (Outdoor remote sensor is not used for this computation). If the remote sensor is absent or not enabled then the actual temperature will be as measured by the local sensor.


Reset Operation

Note:When thermostat is reset, installer configuration menu settings and programming will reset to factory settings.
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermostat by removing the wires from terminals R andC (do not short them together) and removing batteries for 2 minutes. After resetting the thermostat, replace C the wires and batteries. If the thermostat has been reset and still does not function correctly contact your heating/cooling service person or place of purchase.

Symptom Possible Cause Corrective Action
No Heat/No Cool/No Fan (common problems) 1.  Blown fuse or tripped circuit breaker.2.  Furnace power switch to OFF.

3.  Furnace blower compartment door or panel loose or not properly installed.

4.  Loose connection to thermostat or system.

Replace fuse or reset breaker. Turn switch to ON.Replace door panel in proper position to engage safety interlock or door switch.

Tighten connections.

No Heat 1.  Pilot light not lit.2.  Furnace Lock-Out Condition. Heat may also be intermittent.



3.  Heating system requires service or thermostat requires replacement.

Re-light pilot.Many furnaces have safety devices that shut down when a lock-out condition occurs. If the heat works intermittently contact the furnace manufacturer or local HVAC service person for assistance.

Diagnostic: Set SYSTEM Switch to HEAT and raise the setpoint above room temperature. Within a few seconds the thermostat should make a soft click sound. This sound usually indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation listed above. If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a HVAC service person to verify the heating is operating correctly.

No Cool 1. Cooling system requires service or thermostat requires replacement. Same as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature. There may be up to a five minute delay before the thermostat clicks in Cooling.
Heat, Cool or Fan Runs Constantly 1.  Possible short in wiring.2.  Possible short in thermostat.

3.  Possible short in heat/cool/fan system.

4.  FAN Switch set to Fan ON.

Check each wire connection to verify they are not shorted or touching together. No bare wire should stick out from under terminal block. Try resetting the thermostat as described above. If the condition persists the manufacturer of your system or service person can instruct you on how to test the Heat/Cool system for correct operation. If the system operates correctly, replace the thermostat.
Thermostat Setting & Thermostat Thermometer Disagree 1. Thermostat thermometer setting requires adjustment. The thermometer can be adjusted +/- 4 degrees. See Temperature Display Adjustment in the Configuration Menu section.
Furnace (Air Conditioner) Cycles Too Fast or Too Slow (narrow or widetemperature swing) 1. The location of the thermostat and/or the size of the Heating System may be influencing the cycle rate. Digital thermostats provide precise control and cycle faster than older mechanical models. The system turns on and off more frequently but runs for a shorter time so there is no increase in energy use. If you would like an increased cycle time, choose SL for slow cycle in the Configuration menu, step 7 (heat) or 8 (cool). If an acceptable cycle rate is not achieved, contact a local HVAC service person for additional suggestions.
Forgot Keypad Lockout Code

First item in Configuration Menu is not SS1 or HP1

Press the menu button (button will disappear) and hold in for 20 seconds. This unlocks the thermostat.

Earlier model of thermostat refer to 37-6814D.

White-Rodgers is a division of Emerson Electric Co.
The Emerson logo is a trademark and service mark of Emerson Electric Co


Download Manual: EMERSON White Rodgers 1F97-1277 Non-Programmable Thermostat Installation and Operating Instructions



EMERSON White Rodgers 1F97-1277 Non-Programmable Thermostat Installation and Operating Instructions





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