EMERSON White-Rodgers 1F95-391 thermostat 

Easy, Menu-Driven Set-Up and Programming

Premium options to customize the thermostat to fit your application.

ORIENTATION

THE THERMOSTAT BUTTONS
See the inside front cover for an illustration showing button locations.

(Blue arrow) Lowers temperature setting (45°F or 7°C minimum)

1. (Red arrow) Raises temperature setting (99°F or 37°C maximum)
2. The multi-color indicator glows: green for 1st stage, yellow for 2nd stage, flashing yellow for 3rd stage, red for emergency heat, and flashing red for malfunction conditions in the system.
3. This button (on top of the cover) lights the display.
4. Used to initiate or review thermostat programming or advance to the next program period in programming mode
   1. Used with TIME FWD /TIME BACK to set the clock.
5. Used to adjust the time backward or to select the previous menu item.
6. Used to adjust the time forward or to select the next menu item.
7. Used with TIME FWD /TIME BACK to set the current day. Used to advance operation to the next program period or advance to the next day in programming mode.
8. Used to manually override programming to hold at a selected temperature.
9. Used to view ambient humidity or modify humidity settings.
10. Select fan operation (see The Display page 3). This button is also used to program the fan to run continuously during a program period.
11. Used to enter the service menu to change or reset the humidifier, air filter, UV bulb, and service timers.
12. Sets the system mode (HEATing, EMERgency (Heat Pump models only), OFF, COOLing, or AUTOmatic changeover).
13. Used to adjust the clock one hour forward or back.
14. Used to start or return to the program operation.

LARGE LIGHTED (LCD) DISPLAY

The thermostat display alternately shows the current time and the current temperature on the left side. The display also shows the temperature you have programmed or set on the right side of your screen.

1. Display system mode (OFF, AUTO, HOLD, VACA, or HUMD). During programming displays the time period (MOR, DAY, EVE, NHT) being programmed. In the configuration
   menu, the menu item name is shown, one word at a time (PRGM MODE, EMR, COOL FAN DELA OFF, etc.).
2. CHECK STAT appears when the thermostat detects certain problems within itself. CHECK SYSTEM appears when the thermostat detects certain problems in the heating/cooling or humidity system.
3. Indicates the length of time remaining in a temporary hold condition. Also indicates the length of time remaining in VACATION mode
4. Displays FAN ON when the fan is operating continuously. Displays FAN AUTO when the fan cycles with the heating or cooling system.
5. Displays the setpoint temperature. In HUMD mode, shows humidity setpoint.
6. Alternately displays room temperature and time of day. In HUMD mode shows actual humidity. Shows the current day of the week. When programming, shows the day(s) being programmed.
7. The word HEAT or COOL will appear above or below the setpoint if area 1 is needed to display other information.

INTRODUCTION

Thank you for purchasing your new White-Rodgers 90 Series thermostat with humidity control. White Rodgers has been producing energy-saving controls for over 60 years. We have been designing and producing the White-Rodgers 90 Series family of electronic programmable thermostats since 1982. White-Rodgers 90 Series is the third generation of the electronic
programmable family. We believe you will find that the White- Rodgers 90 Series is the most user-friendly and technologically advanced thermostat and humidity control available today. You will find information about thermostat buttons (page 1) and display beginning on page 2.

CONFIGURATION
The configuration menu allows you to set thermostat operating characteristics to your system or personal requirements. To enter the menu, press TIME FWD and TIME BACK once at the same time. Press TIME FWD to advance through the menu options. Press the arrow keys to change the options.

User Configuration Menu

Step	Press Button(s)		Displayed (Factory Default)	Press        or select:	COMMENTS	Ref Page
1	TIME	FWD	0 F (0)	5 LO to 5 HI	Adjusts temperature display to higher or lower.	6
2	TIME	FWD	EMR (ON)	OFF ON ON L	Selects EMR option ON or OFF or ON L.	6
3	TIME	FWD	RH (0)	20 LO to 20 HI	Adjusts humidity display.	7
4	TIME	FWD	DRY (OFF)	LO or HI to OFF	To reduce or eliminate condensation during cold weather. Use LO setting first, if condensation persists use HI setting.	7
5	TIME	FWD	OPTM CMFT (ON)	OFF	Enables improved dehumidification in cooling mode if humidity is above setting.	7
6	TIME	FWD	OPTM DHUM (OFF)	ON	Available if OPTM CMFT is ON. Provides extra dehumidification if humidity is above setting. May reduce temperature setpoint by up to 3 degrees.	8

7	TIME	FWD	(F)	C	Adjusts temperature display between F or C	8
8	TIME	FWD	SET FAN (0)	0 HRS (OFF) to 6 HRS	Set Fan (one shot) option. Set the duration of the one shot option.	8
9	TIME	FWD	BEEP (ON)	OFF	Turns beeper ON or OFF.	8
10	TIME	FWD	HEAT FAST (ON)	OFF	ON allows second stage to energize if setpoint is raised 3 or more degrees. OFF (economy) minimizes second stage operation on setpoint changes.	8
11	TIME	FWD	COOL FAST (OFF)	OFF	ON allows second stage to energize if setpoint is lowered 3 or more degrees. OFF (economy) minimizes second stage operation on setpoint changes.	9
12	TIME	FWD	REMT SEN A (OFF)	ON	Enables Remote Sensor A (connected to SA).	9&10
13	TIME	FWD	REMT SEN B (OFF)	ON	Enables Remote Sensor B (connected to SA).	9&10
14	TIME	FWD	REMT SEN C (OFF)	ON	Enables Remote Sensor C (connected to SA).	9&10
15	TIME	FWD	STAT SEN L (ON)	OFF	OFF Disables Thermostat Sensor. (Only available if remote sensor A, B, or C is connected).	9&10

16

TIME FWD

TEMP OUT (OFF)

ON

Enables outdoor temperature sensor. Requires optional F145-1378 outdoor sensor.

10

CONFIGURATION MENU FEATURES

Adjustable Temperature Display. (User menu, Item 1), The room temperature display can be adjusted to read higher or lower by following the User menu and adjusting the temperature to a higher or lower value. The thermostat is calibrated at the factory to display a very accurate room temperature, but due to various conditions and/ or personal preference, you may wish to adjust the thermostat display higher or lower (up to 5°F). For example, if the thermostat displays a room temperature of 70° and you want it to display 73° the display can be adjusted to read 73°. To adjust, refer to the CONFIGURATION section (page 4, step 1). Selectable Energy Management Recovery (EMR).

(User menu, Step 2) EMR causes the thermostat to start operating the system early in order to make the building temperature reach your program setpoint at the time you specify. In multistage heating, the thermostat will start 8 minutes early for every 1°F difference between the room temperature and the next programmed temperature. In cooling and heat pump applications, the thermostat uses 15 minutes per °F. For heating applications in large buildings where extra time to reach the set temperature may be desired, EMR Long may be selected. When EMR ON L is selected in the user menu (page 4, item 2) the thermostat uses 15 minutes per °F.

EXAMPLE: If the temperature in the room is 65°F and the thermostat is programmed for 70°F at 7 AM, the thermostat will start approximately 40 minutes early. The difference between the room temperature (65°F) and the setpoint (70°F) is 5° and 5° X 8 minutes per °F = 40 minutes. The set point on the display will actually change to display 70° about 40 minutes early. The maximum time the thermostat can start early in heating is 75 minutes (or 3 hours, 45 minutes if EMR ON L is selected). The maximum time in cooling and heat pump applications is 3 hours and 45 minutes. Cooling or heat pump applications start earlier because it takes longer to reach the desired temperature. This feature also minimizes the use of the auxiliary stages if conditions are such that the compressor stages are adequate to reach the desired setpoint. To select or deselect this feature, refer to the CONFIGURATION section (page 4, step 2).

Adjustable Humidity Display (RH) (User Menu step 3)
The room humidity display can be adjusted to read higher or lower by following the configuration menu and adjusting the humidity to a higher or lower value. The thermostat is calibrated at the factory to display a very accurate room humidity, but due to various conditions and/or personal preference, you may wish to adjust the thermostat display to higher or lower (up to +/- 20%). For example, if the thermostat displays room humidity of 40% but you want it to display 43% you can adjust it. To adjust, refer to the CONFIGURATION section (page 4, step 3). Programmable Automatic Humidity Reduction (DRY) (User Menu step 4) This feature automatically lowers the humidity setting when the outside temperature drops. This is to prevent the interior windows/walls from reaching the dew point where water condenses on surfaces. To achieve automatic humidity reduction, the thermostat lowers the humidity when furnace cycles are long. When the furnace runs shorter cycles, it increases humidity. For suggested settings see the table below. Programmable Dehumidification Optimal Comfort Mode (OPTM CMFT)

(User Menu step 5)
When turned on this feature automatically reduces indoor humidity during calls for cooling if humidity is 2% above setting. Humidity is set by pressing the Humidity button when in the appropriate- ate mode, in this case, Cooling, and pressing the or buttons to set desired humidity (range 40 to 95) level followed by pressing Run Program. This dehumidification feature uses less energy by maintaining temperature and dehumidifying only when a call for Cooling is required. Programmable Dehumidification Optimal Dehumidification Mode (OPTM DHUM)

(User Menu step 6)
When turned on this feature automatically reduces indoor humidity if humidity is 2% above the setting. Humidity is set by pressing the HUMIDITY button when in the appropriate mode, in this case, Cooling, and pressing the or  buttons to set desired humidity level followed by pressing PROGRAM. This dehumidification feature may use more energy by making dehumidification a priority and initiating a call for cooling if humidity is 2% above the desired setting. This feature may also over-cool the conditioned space by up to 3 degrees to achieve the desired humidity level. Fahrenheit or Celsius Temperature Display.

(User menu, Step 7)
This thermostat is factory-set to display temperature in Fahrenheit. If you prefer, you may configure the thermostat to display Celsius. See the CONFIGURATION Section, page 5.

Single Period Fan Control. (User menu, Step 8)
This feature allows you to have the fan run for a predetermined period of time by pressing the FAN key twice within 1.5 seconds. If a time is set in the User menu (page 4, step 8) the display will show FAN, # hrs, and PRG FAN ON for six seconds. After six seconds the display will continue to indicate PRG FAN ON for the time period selected. After this time period, the fan will return to normal operation. To return the a to normal operation before the end of the time period, press the FAN button.

Beeper on

(User menu, Step 9)
The thermostat has a beeper that will emit a tone when any key is pressed. In the user menu, the BEEP feature can be turned OFF using or providing a silent key operation.

Heat Fast
(User men, Step 10) This feature, when set to ON, will bring the second stage of heating on any time you manually raise the temperature three or more degrees above room temperature. If HEAT FAST is set to OFF, the thermostat will delay the second stage from 0 to 30 minutes based on how well the first stage is keeping up with your setting.

Cool Fast
(User menu, Step 11) This feature, when set to ON, will bring the second stage of cooling on any time you manually lower the temperature three or more degrees below room temperature. If COOL FAST is set to OFF, the thermostat will delay the second stage from 0 to 30 minutes based on how well the first stage is keeping up with your setting.

Optional Remote Temperature Sense

(User menu, Steps 12,13,14,15) Up to three remote sensors (F145-1328) can be attached to this thermostat to sense indoor temperature at locations away from the thermostat. Each sensor may be located as far as 300 feet away from the thermostat. This is an excellent feature if the thermostat is in a poor location for sensing temperature or if you want to install the thermostat in a separate room to prevent tampering. After installing and connecting the remote sensor(s) to the thermostat, the installer can enable each remote indoor temperature sensor (A, B, and/or C). When operating with remote sensor(s), the thermostat will calculate an average of the sensed temperatures in all enabled sensor locations (A, B, C, and/or L), then display the average temperature as the room temperature. The temperature at each remote sensor can be displayed by pressing the light button twice within one second. With the thermostat in program run or hold mode. Temperatures at the outdoor and indoor remote sensors will be displayed with subsequent presses of the light button in the following order (if connected): outdoor sensor, sensor L, A, B, C. You can also assign each sensor different priorities during Different program periods.

This allows the system to maintain a comfortable environment by giving higher priority to occupied locations. At the same time, giving lower priority to occur- pied locations enhances efficient system operation. EXAMPLE: Your home has bedrooms on the upper level and a guest bedroom on the main level, along with the living room, kitchen, etc. The thermostat (sensor L) is located in the hall on the main level. Remote sensors are located on the upper level (sensor A) and the guest bedroom (sensor B). The lower level would be occupied in the DAY and EVE periods. The upper level would be occupied in the NHT and MOR periods. With no guest in the guest bedroom, the sensors could be programmed as follows:

	SENSOR
	L	A	B
MOR	AVG	HI	LO
DAY	HI	AVG	LO
EVE	HI	AVG	LO
NHT	AVG	HI	LO

 

In the MOR and NHT periods, the sensor on the upper level (sensor A) has more priority than the lower level (sensor L), so the system will operate to keep the temperature at the set point in the upper level. In the DAY and EVE periods, the lower level has a higher priority, so the system will operate to keep the temperature at the default setting. A setting of HI gives menu press TIME and TIME set point on that level. The sensor in the guest bedroom has the lower priority of the sensors. If there is a guest, the sensor in that room (sensor press PROGRAM VIEW to advance the time period you wish to modify, then press the HUMIDITY button. On the display in place of the period of day (MOR, DAY, EVE, NHT) the priority
of the sensor and the sensor, identification will appear.

Press the HUMIDITY button to step through the sensors that are installed and enabled L (local), A, B or C. Only sensors that are installed and enabled will be listed. When the sensor you wish to change is displayed, press the DAYLIGHT SAVING TIME key to change the priority (AVG, HI, or LO). AVG is the default setting. A setting of HI gives a sensor more importance and a setting of LO gives less importance. Outdoor Temperature Sense. (User menu, Step 16) A remote sensor (F145-1378) may be installed for outdoor temperature measurement The sensor must be properly connected and enabled using the User menu. The display shows the outdoor temperature from -40° to 140°F by pressing the light button twice within one second when the thermostat is in a program run or hold mode.

KEYPAD LOCKOUT MENU
The keypad lockout menu allows you to partially or totally lock out the keypad depending on your system or personal requirements. To enter the keypad lockout menu you must first enter the User Menu, while in the User Menu press TIME FWD and TIME BACK at the same time for at least one second. Press TIME FWD to advance through the menu options.  Keypad Lockout Menu (Must be in User Menu to enter Keypad Lock Menu- press and hold Time and Time for one second or more).

Step	Press Button(s)	Displayed (Factory Default)	Press        or        to select:	COMMENTS	Ref Page
1	TIME FWD	PART LOCK (OFF)	ON	ON Disables all keypad functions except Temp Up and Down. User may temporary override within lowest programmed setpoint in cooling and highest programmed setpoint in heating.	10 & 11
2	TIME FWD	LOCK (OFF)	ON	ON Disables all keypad functions.	10 & 11

Press the arrow keys to change the options. Choose one of the two keypad locks to prevent unauthorized tampering with the program. Two levels of security are available, Total Keypad Lockout or Partial Keypad Lockout. Total Keypad Lockout renders all buttons inoperative. Partial Keypad Lockout allows only the buttons to operate for temporary temperature overrides. It also limits the temperature to the maximum heating and minimum cooling temperatures used in your program. This is especially useful in buildings where unscheduled events are common. Anyone can change the temperature, but only between the temperatures you set and only for the number of hours you specify if you set up your Hold Till timing (see “Temporary Program Override” (page 18).

PROGRAMMING

MANUAL OPERATION
(Bypassing the Program)
Your White-Rodgers 90 Series thermostat can be used to control the temperature manually (without programming). For manual operation, Press SYSTEM to select HEAT or COOL, then press PROGRAM HOLD. Use or set the temperature as desired.

PROGRAMMED OPERATION
Planning Your Program The sample schedule (pages 14 & 15) shows the factory-installed programs for heating and cooling. The heating and cooling programs are separate and must be programmed individually. To use the factory program, set the clock and press PROGRAM RUN with the thermostat set to Heat, Cool, or Auto. Fill out the blank schedules (pages 16 & 17) with the time and temperatures you want in your program. Fill in every space for your program. The same temperature can be repeated more than once if you do not want the temperature to change over several time periods. This is useful for homes or businesses that are occupied all day and only want a setback in the temperature at night Entering Your Program

To Set the Clock:

1. Press PROGRAM RUN.
2.  Press SET TIME. The display will show the hour. Use TIME FWD or TIME BACK to set to the current hour and AM/PM designation.
3. Press SET TIME again. The display will show minutes. Use TIME FWD or TIME BACK to set it to the current minutes.
4. Press PROGRAM RUN. To Set the Day
5. Press SET DAY. The display will indicate a day of the week. Use TIME FWD or TIME BACK to set it to the current day of the week.
6. Press PROGRAM RUN. To Set up the Program
7. Press the SYSTEM button to select HEAT (for the heating program) or COOL (for the cooling program).
8. Press PROGRAM VIEW one time. The display will show MOR, the settings for time and temperature, and MON
9. If your program is Monday the first time you press PROGRAM VIEW it will be copied to the rest of the week. To program the other days of the week press ADV. DAY to until you reach the day you wish to change and follow Steps 10, 11 & 12. You can also copy the program from one day to another. To copy, press HOLD /COPY. The display will show COPY, and all the
   other days of the week will be flashing. Press HOLD /COPY again to copy the day into the rest of the week or press TIME FWD or TIME BACK until you reach the day you want to copy to and press HOLD /COPY.
10. Press TIME FWD or TIME BACK to set the time on the display as selected in your HEATING or COOLING SCHEDULE. Be sure to check the AM or PM on the display. Press the or button to adjust the temperature to match your schedule. If you want the fan ON continuously during this period, press the FAN button.
11. Press PROGRAM VIEW one time. MOR on the display will change to DAY. Repeat steps 10 and 11 to enter the time and temperature for this period.
12. Press PROGRAM VIEW to continue through the entire schedule, entering the time and temperature for each period. When you are satisfied that your program matches your schedule,
    Press PROGRAM RUN.
13. Programming is now complete for this mode and your program is running.
14. To program the other mode, repeat the procedure from step 6.

7-Day Sample HEAT Program Schedule (Shows factory programming)

	1		2		3		4
	5	6	5	6	5	6	5	6
MON	6:00 AM	70°F (21°C)	8:00 AM	62°F (16°C)	5:00 PM	70°F (21°C)	10:00 PM	62°F (16°C)
TUE	6:00 AM	70°F (21°C)	8:00 AM	62°F (16°C)	5:00 PM	70°F (21°C)	10:00 PM	62°F (16°C)
WED	6:00 AM	70°F (21°C)	8:00 AM	62°F (16°C)	5:00 PM	70°F (21°C)	10:00 PM	62°F (16°C)
THU	6:00 AM	70°F (21°C)	8:00 AM	62°F (16°C)	5:00 PM	70°F (21°C)	10:00 PM	62°F (16°C)
FRI	6:00 AM	70°F (21°C)	8:00 AM	62°F (16°C)	5:00 PM	70°F (21°C)	10:00 PM	62°F (16°C)
SAT	6:00 AM	70°F (21°C)	8:00 AM	62°F (16°C)	5:00 PM	70°F (21°C)	10:00 PM	62°F (16°C)
SUN	6:00 AM	70°F (21°C)	8:00 AM	62°F (16°C)	5:00 PM	70°F (21°C)	10:00 PM	62°F (16°C)

1. Morning (MOR)
2. Day (DAY)
3. Evening (EVE)
4. Night (NHT)
5. Start Time
6. Temperature

7-Day Sample COOL Program Schedule (Shows factory programming)

	1		2		3		4
	5	6	5	6	5	6	5	6
MON	6:00 AM	78°F (25°C)	8:00 AM	85°F (29°C)	5:00 PM	78°F (25°C)	10:00 PM	82°F (27°C)
TUE	6:00 AM	78°F (25°C)	8:00 AM	85°F (29°C)	5:00 PM	78°F (25°C)	10:00 PM	82°F (27°C)
WED	6:00 AM	78°F (25°C)	8:00 AM	85°F (29°C)	5:00 PM	78°F (25°C)	10:00 PM	82°F (27°C)
THU	6:00 AM	78°F (25°C)	8:00 AM	85°F (29°C)	5:00 PM	78°F (25°C)	10:00 PM	82°F (27°C)
FRI	6:00 AM	78°F (25°C)	8:00 AM	85°F (29°C)	5:00 PM	78°F (25°C)	10:00 PM	82°F (27°C)
SAT	6:00 AM	78°F (25°C)	8:00 AM	85°F (29°C)	5:00 PM	78°F (25°C)	10:00 PM	82°F (27°C)
SUN	6:00 AM	78°F (25°C)	8:00 AM	85°F (29°C)	5:00 PM	78°F (25°C)	10:00 PM	82°F (27°C)

1. Morning (MOR)
2. Day (DAY)
3. Evening (EVE)
4. Night (NHT) Start
5. Time
6. Temperature

7-Day Personal HEAT Program Schedule

	1		2		3		4
	5	6	5	6	5	6	5	6
MON
TUE
WED
THU
FRI
SAT
SUN

1. Morning (MOR)
2. Day (DAY)
3. Evening (EVE)
4. Night (NHT)
5. Start Time
6. Temperature

7-Day Personal COOL Program Schedule

	1		2		3		4
	5	6	5	6	5	6	5	6
MON
TUE
WED
THU
FRI
SAT
SUN

1. Morning (MOR)
2. Day (DAY)
3. Evening (EVE)
4. Night (NHT)
5. Start Time
6. Temperature

  FEATURES

Pushbutton Backlight
The large numbers and letters on your LCD screen make it easy to see. In low light conditions, press the button on top of the thermostat and the display will light up for three seconds. For ten minutes after pressing the light button, pressing any other button will light the display for ten seconds

Factory Preprogramming
This thermostat has been programmed at the factory. The chart in the programming examples section lists these factory settings. If the times and temperatures are the same as your
schedule, you may simply run the factory-installed program by pressing PROGRAM RUN

Temporary Program Override
Any time your program is running and you would like to override it for a specific amount of time, press or until the temperature you want is displayed. The display will indicate HOLD and the number of hours remaining in the hold period is indicated with the word HRS. To adjust the length of time for the override, press TIME FWD or TIME BACK. HOLD TILL will be displayed as well as the HOLD period expiration time. Press the TIME FWD or TIME BACK buttons until you reach the time you would like it to resume the program. The TIME FWD or TIME BACK buttons adjust the time in 15-minute increments. This programmed hold time has a 19-hour maximum and a 15-minute minimum. Beyond 19 hours you may wish to use the vacation hold feature (pages 19 & 20). If you need to, you can adjust the temperature up or down.

Indefinite Program Hold
If you want to operate the thermostat to keep a set temperature without a program running, press PROGRAM HOLD. The temperature is Up or Down buttons can be used to raise or lower
the temperature. The thermostat will hold the set temperature until you return to the program by pressing PROGRAM RUN

Automatic Heat/Cool Changeover

If you have a heating/cooling system, the thermostat can be set to automatically switch the system from heating to cooling as needed. To set your thermostat to this operating mode, Press the SYSTEM button until AUTO is displayed on the screen. Changing the mode of operation from heating or cooling can be accomplished by pressing the buttons at the same time, this will change the setpoint temperature displayed to the setpoint of the other mode. This will allow you to modify both the HEAT and COOL setpoints to accommodate a HOLD condition while in Automatic Changeover mode. Note: For proper Automatic Changeover mode the heating setpoint must be at least 1°F lower than the cooling setpoint in each program period. If the heating setpoint is equal to or higher than the cooling setpoint this causes conflict. The thermostat will indicate a conflict by flashing the setpoint and will resolve the conflict by choosing a heating setpoint that is an average of the two program setpoints. The cooling setpoint will be two degrees higher than the heating setpoint.

Adjustable Temperature Display
The room temperature display can be adjusted to read higher or lower by following the configuration menu and adjusting the temperature to a higher or lower value. The thermostat is
calibrated at the factory to display a very accurate room temperature, but due to various conditions and/or personal preference, you may wish to adjust the thermostat display higher or
lower (up to 5°F). For example, if the thermostat displays a room temperature of 70° but you want it to display 73°, you can adjust it. To adjust, refer to the USER CONFIGURATION
section (page 4, step 1).

Programmable Fan Control
This feature allows you to have your fan operate continuously through one or more programmed time periods. This is useful if you want constant air circulation in your location during a
specific time period. If you do not use this feature, the fan will cycle normally with the heating and cooling system.

Programmable Vacation Time/ Temperature Operation
The VACATION mode allows you to program the thermostat to hold a constant temperature for 1 to 29 days. At the end of the day and the time you select, the thermostat will return to normal program operation. To program the number of days, press the or to set your temperature then press and release the SET DAY button and VACA HOLD TILL will be displayed. The display will also show DAYS (flashing) and the number 5. To change the number of vacation days, press TIME FWD or TIME BACK . Press or set the temperature you wish to maintain while away. While still in vacation mode, set the time you require your program to resume by pressing SET TIME once. The current time will display along with the word HRS
(flashing). Press TIME FWD to adjust the time in 15-minute increments. You may wish to select a few hours in advance of your expected return to allow time to reach the desired temperature. Your thermostat is now programmed to hold the temperature you selected throughout your vacation for HEAT, COOL, or AUTO. After 20 seconds the display will return to time/ temperature alternation and will display VACA. Pressing PROGRAM RUN cancels this feature and begins running your normal program.

Keypad Lockout
This security feature allows you to lock out the keypad to prevent unauthorized tampering with the program. Two levels of security are available, Total Keypad Lockout or Partial Keypad
Lockout. Total Keypad Lockout renders all buttons inoperative. Partial Keypad Lockout allows only the or to operate for temporary temperature overrides. It also limits the temperature to the maximum heating and minimum cooling temperatures used in your program. This is especially useful in buildings where unscheduled events are common. Anyone can change the temperature, but only between the temperatures you set and only for four hours or the number of hours, you specify if you set up your Hold Till timing (see Temporary Program Override, page 18). To select or deselect this feature, refer to the USER CONFIGURATION section (page 11, steps 1 and 2).

Thermostat Startup Up
After Power Loss. The user program and installation and configuration settings are stored in permanent memory indefinitely. After a total power loss of 24V to the thermostat for more than 4 hours the clock and day settings will be lost. When power is restored your thermostat will maintain a heating temperature of 62°F and a cooling temperature of 85°F. If this happens, set the clock and day of the week (using steps 1 through 6 from “Entering Your The program”, pages 12 & 13), then select HEAT, COOL or AUTO using the SYSTEM button, and press the PROGRAM RUN to resume operation with your previously set program.

Compressor Short Cycle Protection
Your thermostat can be configured to protect your system against premature compressor failure by “locking out” the compressor. This ensures that the compressor will stay off for at least
five minutes on each cycle. When the thermostat is in compressor lock-out, the word COOL will flash. During this period, the compressor will not be energized. See the installation
instructions.

Service Button Menu
The Service button allows the setting of maintenance reminders for three optional equipment accessories typically used with forced air heating/ cooling systems. The three accessories humidifier, air filter, and UV light are designed to enhance indoor air quality. A humidifier will add humidity when conditions would normally make the indoor air uncomfortably dry. Air
filters are designed to clean the air through a forced air system. These accessories require routine maintenance to provide optimum performance. The service button maintenance reminders are designed so that they can be customized to the requirements of each accessory. If your system is a forced air system you may have none or all three accessories. The fourth maintenance reminder is for routine servicing of your system by a professional HVAC contractor. The fourth reminder option may be used in lieu of or in conjunction with the other reminders. If you’d prefer to have a professional service your system, the Routine Maintenance Reminder is the only reminder you’ll need to set. To disable a feature that was previously selected, press the TIME BACK button to show either REM PAD TIME, REM FLTR TIME, REM UV TIME, or REM SERV TIME and then press the  or arrow to turn OFF

Service Button Menu

Step	Press Button(s)	Displayed (Factory Default)	Press        or        to select:	COMMENTS
1	SERVICE	PAD TIME (OFF) Hrs or REM PAD TIME No. of Hrs	(ON) or (OFF)	Set Humidifier Maintenance Reminder.
2	TIME FWD (If PAD TIME is ON)	SET PAD TIME (100) Hrs	25 to 1975	Selects time intervals in increments of 25 hours. The RUN time accumulates when the HM terminal is energized.
3	TIME FWD	FLTR TIME (OFF) /Hrs or REM FLTR TIME No. of Hrs	(ON) or (OFF)	Set Air Filter Maintenance Reminder.
4	TIME FWD (If FLTR TIME is ON)	SET FLTR TIME (200) Hrs	25 to 1975	Selects time intervals in increments of 25 hours. The RUN time accumulates when the fan is operating.
5       6	TIME    FWD       TIME    FWD (If UV TIME is ON)	UV TIME (OFF) Days or REM UV TIME No. of Days SET UV TIME (375) Days	(ON) or (OFF)   25 to 1975	Selects UV Light Maintenance Reminder.       Selects time intervals in increments of 25 days. The RUN time is the calendar time from when it is entered or reset.

7	TIME FWD	SERV TIME (OFF) Days or REM SERV TIME No. of Days	(ON) or (OFF)	Selects Routine Maintenance Service Call Reminder.
8	TIME FWD (If SERV TIME is ON)	SET SERV TIME (175) Days	25 to 1975	Selects time intervals in increments of 25 days. The RUN time is the calendar time from when it is entered or reset.
	PRGM RUN			Returns to Normal Operation.

Humidifier

Maintenance Indicator
This feature allows the thermostat to display the words CHECK PAD (check humidifier) after a set time of humidifier operation. This is a reminder to maintain or clean your humidifier. The factory set interval for CHECK PAD to be displayed is 100 hours of humidifier operation. This should be adjusted with respect to the humidifier’s recommended maintenance schedule. When CHECK PAD is displayed, you can clear it by pressing the SERVICE button. This resets the timer and starts counting the hours until the next humidifier maintenance. The following
steps will allow you to change the number of hours for humidifier maintenance.

1. If you see CHCK PAD on the display, press the SERVICE button once to reset the timer. Press the SERVICE button again the display will show the number of hours to the humidifier
   maintenance
2. Press TIME FWD or TIME BACK to change the time to your requirements.
3. Press PROGRAM RUN to return to the normal operating mode Air Filter Change-Out Indicator. This feature allows the thermostat to display the words CHNG FLTR (change filter) after a set time of fans of fan operation. This is a reminder to change of clean your air filter. The factory set interval for CHNG FLTR to be displayed is 200 hours of fan operation. This can be set anywhere from 0 to 1975 hours in 25-hour increments. A selection of OFF will cancel this feature. When CHNG FLTR is displayed, you can clear it by pressing the SERVICE button. This resets the timer and starts counting the hours until the next filter change.

The following steps will allow you to change the number of hours for filter change-out.

1. If you see CHNG FLTR on the display, press the SERVICE button once to reset the timer. If you do not see CHNG FLTR proceed to step
2. When the SERVICE button is pressed twice, the display will show the number of hours remaining before the CHNG FLTR indicator will display.
3.  Press the SERVICE button. The display will show SET FILTER TIME and will show the number of hours to filter change.
4. Press TIME FWD or TIME BACK to change the time to your requirements.
5. Press PROGRAM RUN to return to the normal operating mode.
   NOTE:
   If unsure what interval to use between filter changes or cleaning, contact the manufacturer of your heating/cooling equipment.

UV Bulb Replacement Indicator
This feature allows the thermostat to display the words CALL SERV UV (Call for Service of UV bulb) after a set time of UV bulb operation. This is a reminder to maintain your UV system
at an optimum level of operation. When enabled the factory set interval for CALL SERV UV to be displayed is 350 days of UV bulb operation and can be adjusted in 25-day increments.
This should be adjusted with respect to the bulb’s recommended maintenance schedule.

Routine Maintenance Reminder
This feature allows the thermostat to display the words CALL SERV (Call for Service) after a set time of system operation. This is a reminder to maintain your system at an optimum level of operation. The factory set interval for CALL SERV to be displayed is days of system operation. This should be adjusted with respect to your HVAC service company’s recommendation. When enabled the default is 175 days and can be adjusted in 25-day increments. System and Thermostat Diagnostics. The display will indicate a CHECK SYSTEM if the room temperature
does not rise within two hours of the call for heat. After two hours the thermostat will quit calling for heat for one minute (this allows some furnaces to reset) and call for heat again. If the
temperature still does not rise, it will continue to call for heat. This normally indicates the heating system is not working correctly. You may wish to consult your furnace manufacturer or
service person. The display will indicate CHECK STAT if one of the following occurs.

• One of the buttons is stuck down or in. Check buttons, and make sure nothing is pushing them in.
• The thermostat sensor is not functioning. If using a remote sensor, check connections, wiring, and power.
• The humidity sensor is not functioning. After checking the above, press PROGRAM RUN to reset the display. If this does not clear the display, disconnect the power for five minutes. If these checks fail to solve the problem, the thermostat should be replaced.

Adjustable Humidity Display
The room humidity display can be adjusted to read higher or lower by following the configuration menu and adjusting the humidity to a higher or lower value (up to 20% RH). The sensed humidity is calibrated at the factory. If you want to adjust it, refer to the CONFIGURATION section (page 4, step 3). Programmable Automatic Humidity Reduction. This feature automatically lowers humidity when the outside temperature drops. This is to prevent the interior windows/walls from reaching the dew point where water condenses on surfaces. To achieve automatic humidity reduction, the thermostat lowers the humidity when furnace cycles are long. When the furnace runs shorter cycles, it increases humidity. For suggested settings see the table below.

OFF	Factory default — no humidity reduction.
LO	Well insulated homes requiring little humidity reduction.
HI	Poorly insulated homes or homes with a lot of condensation on windows/walls.

If your window insulation is poor, you need high humidity reduction. If your window insulation is good, you need low humidity reduction (factory setting). Selection of OFF will cancel this feature. To adjust this feature, refer to the CONFIGURATION section (page 4, step 4). Humidifier Control and Monitoring When the humidity button is pressed while in the run mode and in the HEAT position, the actual humidity will be displayed on the left side of the display. HUMD is displayed above the actual humidity. The humidity set point is displayed on the right side of the display. or button may be pressed to modify the humidity set point (range 5 to 50). The maximum displayed humidity is 97% RH and the minimum displayed humidity is 2% RH. If the heating system is operating and there is a demand for humidity then the humidifier will operate. If the demand for humidity is not satisfied for ten consecutive heat cycle operations, the display will show the word HUMD for one second and the word MX for one-second signaling maximum possible humidity is reached.

FAQs	1F95-391
1. My thermostat is reading Celsius. How do I change it to Fahrenheit?	Press TIME FWD and TIME BACK at the same time to enter the configuration menu. Press TIME  FWD    until you get to °C then press the or arrow to select °F, and press PROGRAM RUN to return to normal operation.
2. How do I bypass (not use) the program?	Press PROGRAM   RUN    to make certain the thermostat is in the run program mode, then to bypass the program and operate the thermostat manually press the MODE SYSTEM button to select Heat or Cool (whichever you prefer) and press  HOLD. Use the TEMP or TEMP buttons to set the thermostat to the temperature you want. The temperature setting you choose will be held until you manually change it using the TEMP            or TEMP  buttons. The thermostat will remain in the HOLD mode when you change the temperature and maintain whatever temperature you set. If you decide to return to the program, press PROGRAM RUN to cancel the hold feature.

FAQs	1F95-391
3. My furnace (air condi- tioning) cycles too fast (slow). Is there an adjust- ment?	The 1F95-391 has a feature called Adjustable Heating and Cooling Cycle times (also called Anticipation) that allows you to increase or decrease the cycle times in heating and cooling. This is useful if you think your cycle times are too long or too short. The higher the number you select, the longer the cycle. The lower the number you select, the shorter the cycle. The 1F95-391 is adjusted in the Installer Table (see your installation instructions). The range of adjustment for HEATING is from 1 to 40. The factory Preset is 05, the range of adjustment for COOLING is from 9 to 40. The factory Preset is 24. The cooling will not go below 9 because compressors require a longer cycle. See page 6 of your Installation Instructions.
4. Why does the blower fan keep running after the system has shut off?	Normally the blower will turn off within a few minutes after the call for heat or cool. The blower running after the system shuts off may indicate (1) the thermostat is set to FAN ON, (2) the fan has been programmed to run at that time period or (3) something has damaged the thermostat or equipment. If the thermostat display indicates FAN ON, press the fan button once to set it to FAN AUTO, meaning the fan will cycle only with the equipment. If the display indicates PRG FAN (Program Fan), sometime during programming, the      FAN button was pushed. To remove PRG FAN (Program Fan), check all of the programmed times and temperatures. When you encounter PRG FAN, press the     FAN         button to remove it from that time period in the program. As a final test, set the thermostat to OFF. Verify that FAN ON or FAN AUTO is not displayed. If the fan continues to run, you may want to contact your heating and cooling service person for assistance.

FAQs	1F95-391
5. Do I have to program a stop time for each program period?	There is no need to select a time to stop a programming period. Starting a new programming period will stop the previous program period.
6. My display light does not work. Can it be fixed or replaced?	The display light in the 1F95-391 is not a replaceable item.
7. Between Heating and Cooling seasons, I want to turn my system off. Will this change the program?	Any time you wish to turn your system off, simply press the SYSTEM button until the display shows OFF. This will not affect your thermostat’s programming in any way. To turn the system back on, press the SYSTEM button until HEAT, OFF, COOL, or AUTO is displayed, and press RUN. The system will begin operating according to the current thermostat program.
8. Do I have to reprogram my thermostat after a power outage?	The 1F95-391 will retain the last program entered indefinitely without power.
9. How can I get an extra copy of the Operating Manual for my thermostat?	Visit our website at www.white-rodgers.com for operating manuals.

FAQs	1F95-391
10. What do I do if my system is not working properly and I need service?	Contact a Local Heating & Cooling service person or visit our website at www.white-rodgers.com to consult our “Where to Buy” Service/Dealer locator.
11. What does CHCK PAD on the display mean and how do I reset it?	This feature displays the words CHCK PAD (check humidifier) after a set time of humidifier operation. This is a reminder to maintain or clean your humidifier. When CHCK PAD is displayed, you can clear it by pressing the SERVICE button.
12.When I push the Humidity button, the display shows HUMD MX. What does this mean?	HUMD MX indicates the humidifier has not reached the current humidity setting in the last 10 heating cycles. If the condition persists, a service person may recommend additional humidifier capacity.
13.Why does the system run with the setpoint and room temperature the same?	In cooling, as the room temperature falls you will eventually reach the setpoint temperature. The system will continue to run until it reaches the low side of the temperature setting. As   an example: If set to 78 degrees with the room temperature falling the thermostat will continue to call for cool as the temperature decreases in the following manner. 78.9, 78.8, 78.7, 78.6, 78.5, 78.4, 78.3, 78.2, at approximately 78.2 the thermostat will quit calling for cool. This is why it is not unusual for the room temperature and set temperature to read the same but the system continues to run. The amount of time it takes for the system to shut off

FAQs	1F95-391
(cont.) 13.Why does the system run with the setpoint and room temperature the same?	is dependent on system sizing, thermostat location, etc. Note: The thermostat display only displays whole numbers. Internally the thermostat calculates decimals. In heating as the room temperature increases the system will continue to run until the thermostat reaches the high side of the temperature setpoint.
14. How do I reset my thermostat?	There are 3 possibilities to consider, excluding tampering. 1.  Loss of power from the system, 24VAC should be constant to maintain a display. 2.  Static electricity or a voltage spike from the heating equipment might be resetting the thermostat. Static electricity can be eliminated by touching something before touching the thermostat to dissipate the static charge. A voltage spike from the equipment can be eliminated using an isolation relay as described in the link below. 0037_5426_A [pdf] You can also check the wire routing to verify the thermostat or remote wires are not running parallel to high voltage lines with high inductive loads which could (in extreme cases)    create a voltage spike at the thermostat. 3.  Thermostat not functioning properly. A simple test would be to bench test one of the units for a couple of days to see if it resets or move it to another system where a reset has never occurred.

FAQs	1F95-391
15. How do I temporarily Override the program and Hold Til Timing?	Any time your program is running and you would like to override it for a specific amount   of time, press            or            until the temperature you want is displayed. The display will indicate HOLD, and the number of hours remaining in the hold period will be indicated with the word HRS. To adjust the length of time for the override, press TIME FWD or TIME BACK. The time you select will become the new number of hours for the Hold Til timing. Once your time is selected, let the thermostat revert back to normal operation on its own to accept the change.
16. What is the thermostat Click Test?	Many furnaces have safety devices that shut the system down when a lock-out condition occurs in the furnace. If the thermostat is turned off or the call for heat is canceled (by lowering and then raising the set temperature) the furnace may start operating again. A diagnostic to see if the thermostat is operating when the room temperature is below the thermostat setting (in heat) is to lower the setting below the room temp. Within about 3 seconds the thermostat should make a soft click sound. This sound is the thermostat turning off the call for heat and usually indicates the thermostat is operating properly. If the thermostat does not click you would be suspicious of the thermostat and try resetting it by following it’s reset operation. 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 and the heat works intermittently contact the furnace manufacturer or local service person. They will want to observe the condition when it is not working.

FAQs	1F95-391
(cont.) 16. What is the thermostat Click Test?	You can raise and lower the temperature a few degrees above and below the room tempera- ture and each time expect to hear the thermostat click on and off within a few seconds. If it clicks, it is operating properly.
17. What do AUX, EMER, and MALF indicators mean on a heat pump thermostat?	Aux. = Auxiliary Heat or the second stage of heat in the Heat mode. This is energized when the Heat Pump is not keeping up with the thermostat setting. It is normal operation with most pumps for the thermostat to call for auxiliary heat. Emer. = Emergency Heat. When switched to Emergency the thermostat bypasses the pump and uses the back-up heat. This is useful if the pump is not operating correctly or if the temperature outside is so cold that the pump is not economical to run.
	Malf. = Malfunction. A malfunction indicates the heat pump system is sending a signal to the Malfunction Light on the thermostat terminal marked “L”. It does not indicate a malfunc- tion in the thermostat. The manufacturer of the Heat Pump system can determine the likely cause of malfunction indication on the thermostat.
	In many heat pump systems Emergency and Auxiliary heat are the same source. If you switch the thermostat to Emergency it will bypass the heat pump and bring on the back-up heat. If you leave the thermostat in the Heat mode it will call for Auxiliary when the pump  is not keeping up with your setpoint temperature. Emergency is energized on a call for heat in the Emergency heat mode.

TROUBLESHOOTING

RESETTING THERMOSTAT
The thermostat can be reset back to factory default programs and configuration options. Removing power from the thermostat will not reset it to the default settings. Before resetting the thermostat you may want to make note of the previously selected configuration options and programming. To reset the thermostat, press and release PROGRAM RUN, then press the FAN, TIME BACK, and buttons at the same time. This will reset the thermostat to factory default programs and configuration. The display will momentarily go blank, and then all segments on the display will momentarily be shown. The thermostat will then go into the AUTO HOLD mode and will maintain a factory preset temperature of 62°F in Heat or 85°F in Cool. To clear the HOLD TEMPERATURE overide press the PROGRAM RUN button.

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

SYMPTOM	POSSIBLE CAUSE	CORRECTIVE ACTION
No Heat (Heat may also be intermittent.)	1.  Pilot light not lit. 2.  Thermostat not set to Heat.   3.  Loose connection to thermostat or system. 4.  Furnace Lock-Out Condition.	Re-light pilot. Press the SYSTEM button until Heat is displayed and raise temperature above room temperature. Verify thermostat and system wires are securely attached. 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 service person for assistance.
No Cool	1.  Thermostat not set to Cool.   2.  Loose connection to thermostat or system. 3.  Cooling system requires service or thermostat requires replacement.	Press the SYSTEM button to Cool and lower tempera- ture below room temperature. Verify thermostat and system wires are securely attached. Press the SYSTEM button until Cool is displayed and lower setpoint below room temperature. There may be five minute delay before the thermostat clicks in cooling.

SYMPTOM	POSSIBLE CAUSE	CORRECTIVE ACTION
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 is 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 screws. Try resetting the thermostat as described on page 31.       If the FAN button is pressed to display ON, the blower fan will cycle continuously whether the heating or cooling system is running, press the FAN button until AUTO is displayed. 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.

SYMPTOM	POSSIBLE CAUSE	CORRECTIVE ACTION
Furnace Cycles Too Fast or Too Slow (narrow or wide temperature swing)	1. The location of the thermostat and/or the size of the Heating System may be influencing the cycle rate.	Digital thermostats normally provide precise temperature control and may cycle faster than some older mechanical models. A faster cycle rate means the unit turns on or off more frequently but runs for a shorter time so there is no increase in energy use. If you would like to increase the cycle time, refer to the Installation Instructions under Installer Table for settings. If an acceptable cycle rate is not achieved by the adjustment in the Installer Table then you may want to contact a local heating and air condi- tioning service person for further suggestions.
Cooling Cycles Too Fast or Too Slow (narrow or wide temperature swing)	1. The location of the thermostat and/or size of the Cooling System can influence the rate.	The cycle rate for cooling is fixed and can not be adjusted. Contact a local service person for sugges- tions.

SYMPTOM	POSSIBLE CAUSE	CORRECTIVE ACTION
Thermostat Setting and Thermostat Thermometer Disagree	1. Thermostat thermometer setting requires adjustment.	The thermostat can be adjusted +/- 5°F. See the Temperature Display Adjustment in the Operating Manual under configuration.
Thermostat Does Not Follow Program	1.  AM or PM set incorrectly in program. 2. AM or PM set incorrectly on the clock. 3.  Voltage spike or static discharge.	Check current clock and program settings including the AM or PM designations for each time period. If a voltage spike or a static discharge occurs use the Reset Operation listed above.
Blank Display and/or Keypad Not Responding	1. Voltage spike or static discharge.	Check heat/cool system for proper operation. If a voltage spike occurs, use the Reset Operation by pressing FAN, TIME BACK , and the temperature arrow at the same time.

The Emerson logo is a trademark and service mark of Emerson Electric Co.White-Rodgers is a division of Emerson Electric Co.Replaces 37-6528B 0728

REFERENCE:

Download Manual: EMERSON White-Rodgers 1F95-391 thermostat INSTALLATION INSTRUCTIONS

EMERSON White-Rodgers 1F95-391 thermostat INSTALLATION INSTRUCTIONS