90 Series Blue Universal Thermostat with
Automatic Heat/Cool Changeover Option
Single Stage, Multi-Stage, Heat Pump
Installation and Operating Instructions for Model:
Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLYBEFOREINSTALLINGOROPERATINGTHIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
Model
Programming Choices
1F95-1277 Non-Programmable 5/1/1 Day 7 Day
APPLICATIONS
THERMOSTAT APPLICATION GUIDE
Description
1F95-1277 Touchscreen Thermostat
Heat Pump (No Aux. or Emergency Heat)
Heat Pump (with Aux. or Emergency Heat)
Systems with up to 3 Stages Heat, 2 Stages Cool
Heat Only Systems
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces
Cool Only Systems
Gas or Oil Heat
Electric Furnace
Hydronic (Hot Water) Zone Heat – 2 Wires
Hydronic (Hot Water) Zone Heat – 3 Wires
Wired Remote Temperature Sensor (Indoor/Outdoor)
Dual Fuel Feature (Heat Pump Mode)
SPECIFICATIONS
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 32°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 . . . . . . . . . . . . . . . . . . . . . 4.6"H x 5.9"W x 1.2"D
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this
product may replace a product that contains mercury.
CAUTION
To prevent electrical shock and/or equipment dam-
age, disconnect electric power to system at main fuse
or circuit breaker box until installation is complete.
!
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 and send it to:
Index
Installation
Page
2
2
Wiring Connections
Thermostat Quick Reference
Installer Configuration Menu
Operating Your Thermostat
Programming
3
4
White-Rodgers
2895 Harrison Street
Batesville, AR 72501
7
7
Troubleshooting
11
PART NO. 37-6753A
0626
THERMOSTAT QUICK REFERENCE
Home Screen Description
Figure 2 – Home Screen Display
Room
Temperature
Day of Week
Set Temperature
Time of Day
Temperature
UP/Down used for
modifying set point
as well as to
System
Switch
navigating the menus
Fan
Switch
Enters comfort
temperature settings
into the schedule
Menu key for entering
different modes such as
Cleaning, Configuration, Set
Time and Set Schedule
Battery Level Indicator
Indicating the current power level
of the 2 “AA” batteries.
Full power remaining.
Indicates when
thermostat is calling
for Heat or Cool
Half power remaining.
Change
The batteries should be replaced at this time.
Programming and Configuration Items
Figure 3 – Programming & Configuration Items
Displays and "Keypad Lockout" when in keypad
lockout mode.
1
16
Displays and "Temperature Limit" and "Keypad
Lockout" when limited range is activated and locked.
Displays only "Temperature Limit" when limited range
is activated.
11
15
5
10
9
8
Indicates period of day being programmed.
RUN SCHEDULE (run program) button.
SET TIME button or HOLD temperature button.
2
3
4
1
2
13
14
Displays "Change Filter" when the system has run
for the programmed filter time period as a reminder
to change or clean your filter.
5
12
COPY button or INSTALLER CONFIG button.
6
7
3
CLEAN DISPLAY button allows 30 seconds to wipe off
the display or ADVANCE DAY button for programming.
4
7
6
Used in programming to set time and in configuration
menu to change selections.
8
9
"System On" indicates when heating or cooling stage
is energized. "+2" also indicates when a second stage
is energized.
13
"Hold Until" indicates the time when a temporary hold
period will end.
"Hours" and "Days" displays during steps in installer
configuration.
10
"Copy" indicates the copy program feature is being
used during programming.
14
15
The words "Hold At" are displayed when the thermo-
stat is in the HOLD mode. "Temporary Hold At" is
displayed when the thermostat is in a temporary HOLD
mode.
11
A steady "Cool Savings" display indicates the feature
is enabled in the installer menu. A flashing "Cool
Savings" display indicates the feature is active.
"Remote" indicates that the indoor remote temperature
sensor, is being accessed. "Outdoor Remote" indi-
cates the outdoor remote temperature sensor is being
accessed.
16
"Call For Service" indicates a fault in the heating/
cooling system. It does not indicate a fault in the
thermostat.
12
3
INSTALLER/CONFIGURATION MENU
To enter the menu: Press the Menu touch key. Press and hold for 5 seconds the Installer Config touch key. This displays
menu item #1 in the table below. Press
or to change a menu item.
to advance to the next menu item or
to return to a previous menu item. Press
CONFIGURATION MENU
Non-
Displayed
(Factory
Default)
Press
to select from
listed options
or
Menu
Reference
Number
Program- Program- Press
mable
mable Button
Comments
1
1
MS 2
HP 1, HP 2, SS 1
GAS
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.
GAS setting: furnace controls blower.
ELE setting: thermostat controls blower.
Programs per week. (0 = non-programmable)
Program periods per day.
1
2
2
2
(ELE)
3
4
3
Days, (7) P
PS (4)
5-1-1 or 0
3
4
NA
2
4 = Morning, Day, Evening, Night
2 = Day, Night
5
4
Cool-Off-
Heat-Auto
Cool-Off-Heat,
System switch configuration in non heat pump mode.
5
Off-Heat, Cool-Off
Cool-Off-Heat-
Emer-Auto
Cool-Off-Heat-Emer,
System switch configuration, heat pump mode.
Off-Heat-Emer, Cool-Off
6
7
8
9
NA
5
E (On)
OFF
SL
Selects Energy Management Recovery, E (with programming option on)
Selects Adjustable Anticipation, cycle rate, Heat
Selects Adjustable Anticipation, cycle rate, Cool
Selects Adjustable Anticipation, cycle rate auxiliary, (This item is
only to appear if HP 1 or HP 2 is selected above).
Selects Compressor Lockout.
6
7
8
9
Cr, Heat (FA)
Cr, Cool (FA)
Cr/AU, Emer (FA)
6
SL
7
SL
10
11
12
13
8
9
CL (OFF)
dL (On)
dL (LO)
0
On
OFF
10
11
12
13
Selects Continuous Display backlight & intensity.
Selects Backlight Intensity.
10
11
HI
4, LO to 4, HI
Selects Adjustable Ambient Temperature Display [range -4 (LO) to
+4 (HI)].
14
15
16
17
12
13
14
15
°F
°C
Selects °F/°C Display (temperature units in Fahrenheit or Celsius).
Selects audible Beeper On/Off.
14
15
16
17
b (On)
OFF
OFF
OFF
dS (On)
Selects Daylight Saving Time calculation.
Selects Automatic Schedule for comfort temperature Programming,
heat mode.
AS, Heat (On)
18
19
16
17
AS, Cool (On)
OFF
Selects Automatic Schedule for comfort temperature Programming,
cool mode.
18
19
CS, (OFF)
Cool Savings
HL, Heat (99)
LL, Cool (45)
OFF,
1-2-3-4-5-6
Selects Cool Saving Feature & amount.
20
21
22
18
19
20
62-98
46-82
TEMPERATURE LIMIT, HEAT (max. heat set point).
TEMPERATURE LIMIT, COOL (min. cool set point).
Selects Keypad Lockout.
20
21
22
L (total), P (partial),
Keypad Lockout Temperature Limit
(limited temperature range)
000
001-999
Selects Keypad Lockout Combination (active only if keypad Lockout
is selected).
23
24
21
22
FS, Heat (On)
FS, Cool (On)
OFF
OFF
Fast second stage of heat (not available if SS1 is selected above).
Fast second stage of cool (not available if SS1 or HP1 is selected
above).
23
24
25
23
Remote (OFF)
In, Remote
LS (On)
On
Outdoor Remote
OFF
Remote temperature sensor, enable/disable.
Remote temperature sensor (Indoor/Outdoor).
Local temp. Sensor enable/disable (only when Indoor Remote is
selected On).
25
26
27
24
25
dF (5)
5-50
Selects Dual Fuel Feature & set point (in Fahrenheit) (applicable only
when HP1 or HP2 is selected).
26
27
Cd (60)
Change Filter
(OFF)
0-99
On
Selects Compressor delay in seconds (only when dF is selected >5).
Selects Change filter feature
200 Hours
25-1975 (in increments Change filter, duration hours.
of 25 hours)
4
INSTALLER/CONFIGURATION MENU
1) This control can be configured for:
11) Select Continuous Backlight – In low lighting condi-
tions, display backlight improves the display contrast.
When C terminal is connected, selecting dL On will turn
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
enables the momentary backlight whenever a key is
pressed.
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 35) (3 heat/2 cool)
SS1 – Single Stage System (3 wire zone see wiring
diagram 37-6808A)
12) Select Backlight Intensity – This thermostat has the
ability to provide two selectable intensities of the back-
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 thermo-
stat switches the option to ELE.
3) Programs per week – This control can be configured for
7 independent day or 5/1/1 day programming or non-
programmable modes. Default is 7-day mode. The
display indicates "7 Days" as default. Other options "5
Days" or "0 Days" can be selected by pressing touch
light: HI and LO. Using
or
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.
keys,
or
. If "0 Days" is selected for non-program-
14) Select °F or °C Readout – Select the desired temper-
mable mode, the step for EMR will be skipped, as this
feature will not be available in this mode.
4) Program Steps per day – This control can be config-
ured for 4 or 2 program steps per day. Default is "4 PS"
and can be toggled between 4 PS and 2 PS by pressing
ature unit by pressing
or . 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
beeper select OFF.
16) Select Daylight Saving Time Calculation – This feature
will allow the thermostat to calculate the DST automati-
cally and apply it to the Real Time Clock display. Default
the
or
touch keys.
5) 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).
On. Use
or
touch keys to select the feature, OFF.
17 & 18) Select Automatic Schedule – With just one touch
of the Auto Schedule key this feature allows you to
program a desired comfort temperature into all the
program periods along with a 6° set back for night
periods of both Heat and Cool programs. Factory default
is "On" for both. When Heat AS On and Cool AS On are
activated while in Heat or Cool mode, select desired
setpoint temperature and press Auto Schedule. Auto
Schedule will flash, press it again to copy. This value will
be copied into all the morning, day and evening program
periods. The night program periods will be with a 6°F set
back.
When the control is in heat pump configuration (HP1/
HP2), the system switch configuration will have an
additional mode available namely, Emer for Emergency
Mode.
6) Energy Management Recovery (EMR) – (this step is
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: 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.
19) Select Cool Savings™: With Cool Savings™ enabled,
the thermostat will make small adjustments to the sensed
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
7, 8 & 9) Cycle Rate Selection – The factory default setting
is fast cycle (FA Cr) in all modes (Heat, Cool, Emer). To
temperature will feel comfortable. After 20 minutes of run
time, the thermostat will start decreasing the sensed
temperature in steps of less than one degree as the
system continues to run. These adjustments will eventu-
ally 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 adjust-
ments, the display will flash “CoolSavings”. The amount
of the adjustments to the sensed temperature is depen-
dent 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 sensed temperature are reversed until sensed
temperature returns to normal and “CoolSavings” no
longer flashes.
slow cycling (SL, Cr), press touch keys
or
toggle
between FA & SL. The cycle rates are as below different
selections:
Mode
Heat
Cool
Fast rate
0.6°F
1.2°F
Slow rate
1.2°F
1.7°F
Emer
1.2°F
1.7°F
10) 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 thermo-
stat. Your compressor manufacturer can tell you if
this lockout feature is already present in their system.
When the thermostat compressor time delay is activated,
it will flash the set point for up to five minutes.
5
INSTALLER/CONFIGURATION MENU
23 & 24) Select Fast Second Stage ON or OFF – In the run
mode, with the fast Heat feature enabled (FA Heat On), if
the Heat setpoint temperature is manually raised by 3°F
20) Heat Temperature Limit Range – This feature adjusts
the highest setpoint temperature for heat. The default
setting is 99°F. It can be changed between 62°F and
(2°C) or more above the actual temperature using
second stage will energize immediately. With FA OFF,
the
98°F by pressing the
or
key. The "temperature
limit" icon will be displayed to the left of your setpoint
temperature when using this feature. The "temperature
limit" icon will flash if an attempt is made to adjust the
temperature beyond the range selected.
second stage will not energize until the setpoint tempera-
ture 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 tempera-
ture is lowered.
21) Cool Temperature Limit Range – This feature adjusts
the lowest setpoint temperature for cool. The default
setting is 45°F. It can be changed between 46°F and
25) Select Remote Temperature Sensor – This control
allows one wired remote temperature sensor (indoor or
outdoor) 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 and Remote in (for indoor) or
Outdoor Remote.
82°F by pressing the
or
key. The "temperature
limit" icon will be displayed to the left of your setpoint
temperature when using this feature. The "temperature
limit" icon will flash if an attempt is made to adjust the
temperature beyond the range selected.
22) Keypad Lockout – This step allows you to select the
type of lockout or limited range security required. If no
Local Temperature Sensor disable – This is applicable
only when indoor remote temperature sensor is enabled.
Factory default is On LS. You can make it Off LS if you
lockout or limited range security is required, press
advance the menu.
Three security settings are available in this menu item.
Use the or keys to select the lockout desired.
to
desire by using
or
touch keys.Then, only the
indoor remote temperature reading will be used for
control.
Lockout selections are:
"Keypad Lockout and L" = Total Lockout. Total Lockout
locks all keys.
26) Select Dual Fuel Feature and Setpoint – This feature
is applicable only in heat pump modes. When the feature
is selected, the thermostat will switch to gas heat and
inhibit the compressor when the outside temperature
(monitored by the outside remote sensor), falls below the
"Keypad Lockout and P" = Partial Lockout. Partial Lock-
out allows only the
or
keys to operate within your
set temperature limits.
"Temperature Limit/Keypad Lockout" prevents
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
DF setpoint. By using
or
touch keys, select x, DF
where x=5 to 50; factory default is 5 which disables the
feature. This feature requires an outdoor remote temp-
erature sensor (WR# F145-1378), however does not
need a fossil fuel kit.
Select Compressor Delay – When the DF feature is
enabled, the shut down of the compressor stage(s) are
delayed by a programmable time after the auxiliary stage
is energized to minimize the duration during which the
system may blow cooler air. Default delay is 60 seconds
pressing the
button to advance.
Return to this point when you are ready to start your
selected lock-out and continue by:
(60, Cd). By using
tween 0 and 99 can be selected.
or
touch keys any value be-
Pressing
Press . Display will read "000".
Pressing or keys to select your keypad lockout
combination number. Note: "000" is not a valid
combination choice.
or
keys to select ON.
27) Select Change Filter Run Time – The thermostat
will display "Change 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
clear it by pressing Clean Display. In a typical application,
200 hours of run time is approximately 30 days.
Record the number you select for future use.
Press
to 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.
6
OPERATING YOUR THERMOSTAT
IMPORTANT!
Choose the Fan Setting (Auto or On or Prog)
Fan Auto is the most commonly selected setting and runs
the fan only when the heating or cooling system is on.
Fan On selection runs the fan continuously for increased air
circulation or to allow additional air cleaning.
Fan Prog will cycle the fan for -10 minutes on and 20
minutes off – if the thermostat has not called for heat or cool
during the past 60 minutes.
Manual Operation (Bypassing the Program)
Programmable Thermostats
Press
or
and the HOLD button and adjust the tempera-
ture wherever you like. This will override the program. The
HOLD feature bypasses the program and allows you to
adjust the temperature manually, as needed. Whatever
temperature you set in HOLD will be maintained 24 hours a
day, until you manually change the temperature or press Run
Schedule to cancel HOLD and resume the programmed
schedule.
Choose the System Setting
(Cool, Off, Heat, Emer, Auto)
Press the SYSTEM button to select:
Program Override (Temporary Override)
Heat: Thermostat controls only the heating system.
Press
or
buttons to adjust the temperature. This will
Off: Heating and Cooling systems are off.
override the temperature setting for a (default) four hour
override period. The override period can be shortened by
Cool: Thermostat controls only the cooling system.
Auto: Auto Changeover is used in areas where both heating
and cooling may be required on the same day. AUTO allows
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
Cooling temperatures more than 1° Fahrenheit higher than
the heating temperature.
pressing
or lengthened by pressing . Program Override
period can range from 15 minutes to 7 days.
Example: If you turn up the heat during the morning pro-
gram, it will be automatically lowered later, when the tempo-
rary hold period ends. To cancel the temporary setting at any
time and return to the program, press Run Schedule.
If the SYSTEM button is pressed to select AUTO the
thermostat will change to Heat or Cool, whichever ran last. If
it switches to heat but you want cool, or it changes to cool
Emer: Setting is available only when the thermostat is
configured in HP1 or HP2 mode.
but you want heat, press both
neously to change to the other mode.
or
buttons simulta-
Manual Operation for
Non-Programmable Thermostats
Press the SYSTEM button to select Heat or Cool and use
the
or
buttons to adjust the temperature to your
desired setting. After selecting your desired settings you can
also press the SYSTEM button to select AUTO to allow
the thermostat to automatically change between Heat and
Cool.
PROGRAMMING
Set Current Time and Day
Automatic Daylight Saving Calculation
The Real Time Clock will adjust automatically for daylight
savings time, in the following manner until 2007:
Increment one hour at 2 AM on the first Sunday of April and
decrement one hour at 2 AM of the last Sunday of October
every year.
From March 2007, the adjustment will occur every year as
follows: 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.
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
or
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 the
reach the correct minutes.
or
touch keys until you
5) Press Set Time once again to display year.
The daylight saving feature can be enabled or disabled in
installer configuration mode.
After entering installer configuration mode, momentarily
6) Press and hold either the
reach the correct year.
or
touch key until you
7) Press Set Time once again to display month.
press
actual temperature digits) and on (default – in clock digits).
and keys will toggle display and operation from on to
OFF.
or
touch key until the display indicates dS (in
8) Press and hold either the
reach the correct month.
or
touch key until you
9) Press Set Time once again to display date of the month
along with day of the week at top row (which is auto-
matic).
Programming Tip: Copy Button
You may copy any daily program to another day or group of
days by pressing the Copy button. In 7 day programming
mode when the Copy button is pressed, the other 6 days of
the week will flash. To copy the current program into the
remaining six days, simply press the Copy button again. To
copy the current program to another day of the week, press
Advance Day to select the day and press Copy to paste the
program. In 5/1/1 day programming mode the copy function
is similar. The weekday (Mon-Fri) program can be copied to
Sat and Sun (both flashing) or use Advance Day to choose
Sat or Sun and press the Copy button to paste the program.
10) Press and hold either the
or
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.
7
PROGRAMMING
Fill in the blank schedule on the next page then:
Entering Fan Program
This key is used to select FAN Auto operation (fan energized
with a call for cool but not on with a call for heat) to FAN On
(fan on continuous) or FAN PROG (fan programmed to cycle
fixed time automatically). Each press of the FAN touch key
will change the mode from Auto to On to Prog. FAN Auto or
FAN On or FAN On Prog will display in the run mode for as
long as the fan is in that position. When FAN Prog position is
selected and the system key is in the Cool, Heat or Auto
mode the circulator blower (fan) will cycle ON for 10 minutes,
OFF for 20 minutes when the thermostat has not called for
cooling or heating for the past 60 minutes.
Enter the Heating Program
1) Press the Menu button and then press Set Schedule.
Press SYSTEM button to select either "Heat" or "Cool" in
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 pro-
grammed. The time and set at temperature are also
displayed. "Morning" will also be displayed to indicate
the period.
3) Press
selected temperature for the 1st heating period (Morning).
4) Press or key to adjust the start time for period.
or
key to change the temperature to your
To improve indoor air quality, the system circulator can be
programmed to run during any program time period by
touching the Fan touch key in the appropriate program time
period when in the Menu mode for that particular day.
The display shall indicate Prog (under the Fan icon) when in
Menu mode and the fan is programmed to come on during
that time.
The time will change in 15 minute increments.
5) Press FAN to select Auto or Prog.
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.
In the menu mode, each time the fan key is pressed, the fan
operation and display will change from FAN Auto to FAN
Prog. The display shall indicate FAN On Prog when in run
mode and the fan is programmed to run for that particular
time period.
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.
When in Run Schedule mode and the FAN touch key is
pressed, it will override the schedule, and the display and fan
operation shall change to FAN Auto and the fan is stopped.
Further key depression will change it to FAN On (continuous
blower on) and to FAN Prog (cycling 10 minutes on and 20
minutes off if there is no call for heat or cool for 60 minutes).
The Run Schedule touch key will also be indicated, meaning
that it is an override on the scheduled program. The override
will last until next schedule comes up or the Run Schedule
touch key is depressed.
Enter the Cooling Program
1) Press the SYSTEM button until the Cool icon appears.
2) Follow Enter Heating Program instructions for entering
cooling times and temperatures.
Automatic Schedule
This feature provides a method to program every day with
the most popular time and temperature profile using one key
press. For this feature to be available, the Auto schedule
options (AS Cool or AS Heat) should be set on in the
installer configuration.
Select the desired “Comfort Temperature” in the setpoint.
When the Auto Schedule touch key is pressed, it will start
flashing indicating that it is now ready to insert the displayed
temperature setpoint as the “Comfort Temperature” for the
selected system mode currently in (Heat/Cool). A second
press of the Auto Schedule touch key will complete the
process. A 6 o F setback temperature will also be inserted for
the night step. Once it is done, the touch key display Auto
Schedule will disappear disabling any further operation of
Auto Schedule touch key. If desired it can be enabled again
in the installer configuration menu.
8
PROGRAMMING
Energy Saving Factory Pre-Program
The 1F95-1277 thermostats 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)
Heating
Program
6:00 AM
70°F
8:00 AM
62°F
5:00 PM
70°F
10:00 PM
62°F
82°F
Cooling
Program
6:00 AM
78°F
8:00 AM
85°F
5:00 PM
78°F
10:00 PM
* 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 configura-
tion 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)
Leave For Work
(Day)
Return Home
(Evening)
Go To Bed
(Night)
Fan
Fan
Fan
Fan
6:00 AM
70°F Auto 8:00 AM
62°F Auto 5:00 PM
70°F Auto 10:00 PM 62°F Auto
MON
TUE
WED
THU
FRI
6:00 AM
6:00 AM
70°F Auto 8:00 AM
70°F Auto 8:00 AM
62°F Auto 5:00 PM
62°F Auto 5:00 PM
70°F Auto 10:00 PM 62°F Auto
70°F Auto 10:00 PM 62°F Auto
SAT
SUN
Cooling
Program
Wake Up
(Morning)
Leave For Work
(Day)
Return Home
(Evening)
Go To Bed
(Night)
Fan
Fan
Fan
Fan
6:00 AM
78°F Auto 8:00 AM
85°F Auto 5:00 PM
78°F Auto 10:00 PM 82°F Auto
MON
TUE
WED
THU
FRI
6:00 AM
6:00 AM
78°F Auto 8:00 AM
78°F Auto 8:00 AM
85°F Auto 5:00 PM
85°F Auto 5:00 PM
78°F Auto 10:00 PM 82°F Auto
78°F Auto 10:00 PM 82°F Auto
SAT
SUN
9
PROGRAMMING
Dual Fuel Temperature Set Point
Wired Remote Temperature Sensing
The Thermostat can monitor outside temperature through an
outdoor remote sensor if installed and switch to gas heat and
inhibit the compressor when in heat pump mode and outside
temperature is below a user selectable value. This tempera-
ture is called the dual fuel temperature set point. This
eliminates the need for a fossil fuel kit.
One remote temperature sensor can be installed indoor or
outdoor and connected to the thermostat by a maximum
cable length of 100 meters (300 ft). Three terminals, +, S & -
are provided on the terminal block to connect to the White-
Rodgers standard wired remote sensor. This sensor will be
read by the thermostat only when 24VAC is present.
When used as indoor sensor, the readings can be weighted
with the local sensor for specific program periods. User can
enable or disable the remote sensor in the installer configu-
ration mode and also the outdoor temperature can be
selected to show on the display.
For this feature to be functional the following conditions are
to be met:
1. The thermostat must be in heat pump mode;
2. The outdoor temperature sensor must be enabled and
operational.
Once in the installer configuration mode, momentarily press
Once in the installer configuration mode, momentarily press
or
touch screen key until the display indicates dF (for
the
top left of the LCD) and OFF (default – in clock digits).
Pressing or touch key will toggle the operation and
display from Remote OFF to Remote On.
or
touch key until display indicates Remote (at the
dual fuel) in the actual temperature digits and 5 (default) in
clock digits.
Pressing the
or
touch keys will increment the dual fuel
temperature setpoint from 5 to 50 (default unit is Fahrenheit).
When the dual fuel temperature setpoint is any value above
5oF this feature is enabled. If the actual outdoor temperature
is lower than this temperature setpoint the heat pump will be
inhibited. If the balance point temperature setpoint is 5oF the
feature is disabled.
When the dual fuel feature is enabled, the shut down of the
compressor stage(s) are delayed a programmable time with
a default of 60 seconds after the auxiliary stage is energized
to minimize the time that the system may blow cooler air.
When Remote On is selected, press
indicate Remote In (for indoor remote).
key for the display to
The
or
keys will toggle the operation and display from
Remote In to Outdoor Remote.
When any remote is selected the temperature will display in
the clock digits for one second alternating with the current
time for three seconds when in Run Schedule mode.
Outdoor Remote will indicate at the top left of display for
outdoor remote reading.
Only Remote will show at top left for indoor remote reading.
(oF or oC will not indicate with remote temperature readings).
Only when the dual fuel feature is enabled and the
is
pressed after the dual fuel feature dF is selected, the display
will indicate Cd (for compressor delay) in actual temperature
digits and 60 (default) in clock digits.
Sensing Range:
Outdoor temperature range is -40 to 140oF
Indoor temperature range is 32 oF to 99oF
Pressing the
or
touch keys will increment the compres-
sor delay time to 99 seconds or decrement down to 0
second.
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.
If the
or
touch keys are held depressed, the setpoint
will increment or decrement one degree at the rate of one
degree every one half second for the first three seconds and
thereafter at double the speed.
When in view schedule mode, press
and
keys at the
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
sensor LS On (default for thermostat local sensor opera-
tional). The and keys will toggle the function and
key for the display to indicate the status of the local
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.
10
TROUBLESHOOTING
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 and C (do not short them together) and removing batteries for 2 minutes. After resetting the thermostat, replace
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.
Note: Be sure to review the installer configuration menu settings.
To reset the programming, clock and configuration settings, press
should go blank and then all segments will be displayed momentarily.
and
and the SYSTEM button simultaneously. The thermostat
Possible Cause
Corrective Action
Symptom
1. Blown fuse or tripped circuit breaker.
2. Furnace power switch to OFF.
Replace fuse or reset breaker.
Turn switch to ON.
No Heat/No Cool/No Fan
(common problems)
3. Furnace blower compartment door or
panel loose or not properly installed.
Replace door panel in proper position to engage safety
interlock or door switch.
4. Loose connection to thermostat or system. Tighten connections.
1. Pilot light not lit.
Re-light pilot.
No Heat
2. Furnace Lock-Out Condition. Heat
may also be intermittent.
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.
3. Heating system requires service or
thermostat requires replacement.
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.
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.
No Cool
1. Possible short in wiring.
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.
Heat, Cool or Fan
Runs Constantly
2. Possible short in thermostat.
3. Possible short in heat/cool/fan system.
4. FAN Switch set to Fan ON.
1. Thermostat thermometer setting
requires adjustment.
The thermometer can be adjusted +/- 4 degrees. See
Temperature Display Adjustment in the Configuration
Menu section.
Thermostat Setting &
Thermostat Thermometer
Disagree
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 6 (heat) or 7 (cool). If an acceptable cycle rate
is not achieved, contact a local HVAC service person for
additional suggestions.
Furnace (Air Conditioner)
Cycles Too Fast or Too Slow
(narrow or wide
temperature swing)
Press the menu button (button will disappear) and hold in
for 20 seconds. This unlocks the thermostat.
Forgot Keypad
Lockout Code
11
HOMEOWNER HELP LINE: 1-800-284-2925
White-Rodgers is a division
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
St. Louis, Missouri
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