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
PROPERTYDAMAGE.
Model
Programming Choices
1F95-1277 Non-Programmable 5/1/1 Day 7 Day
1F95-1277 Touchscreen Thermostat
APPLICATIONS
THERMOSTATAPPLICATIONGUIDE
Description
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
3
4
7
7
11
Wiring Connections
Thermostat Quick Reference
Installer Configuration Menu
Operating Your Thermostat
Programming
White-Rodgers
2895 Harrison Street
Batesville, AR 72501
Troubleshooting
PART NO. 37-6753B
Replaces 37-6753A
0706
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THERMOSTATQUICKREFERENCE
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
Enters comfort
Switch
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
1
lockout mode.
16
Displays
and "Temperature Limit" and "Keypad
11
15
5
10
Lockout" when limited range is activated and locked.
Displays only "Temperature Limit" when limited range
is activated.
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.
A steady "Cool Savings" display indicates the feature
is enabled in the installer menu. A flashing "Cool
Savings" display indicates the feature is active.
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
"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
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INSTALLER/CONFIGURATIONMENU
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
2
3
4
NA
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
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INSTALLER/CONFIGURATIONMENU
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 26) (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 – This feature allows
programming a “Comfort Temperature” into all program
periods with the Auto Schedule key. When Heat AS (for
Heat mode) or Cool AS (for Cool mode) is selected On,
the Auto Schedule feature is ready to be set. Off
indicates that the feature is not ready to be used or a
“Comfort Temperature is already set. See Auto Schedule
in Programming section.
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.
19) Select Cool Savings™: With Cool Savings™ enabled,
the thermostat will make small adjustments to the
setpoint temperature during periods of high demand to
reduce AC system running time and save energy. When
the cooling system has been running for more than 20
minutes, humidity in the home will be lower and a higher
temperature will feel comfortable. After 20 minutes of run
time, the thermostat will start increasing the setpoint
temperature in steps of less than one degree as the
system continues to run. These adjustments will 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 “Cool Savings”. The amount
of the adjustments to the setpoint 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 setpoint temperature are reversed until setpoint
temperature returns to normal and “Cool Savings” no
longer flashes.
Example: Let us say, the heating program is 65°F at
night and 70° at 7 AM. If the building temperature is 65°F,
the difference is 5°F. Allowing 5 minutes per °F rise, the
thermostat setpoint will change to 70° at 6:35 AM.
Cooling allows more time per °F, because it takes
longer to reach temperature.
7, 8 & 9) Cycle Rate Selection – The factory default setting
is fast cycle (FA Cr) in all modes (Heat, Cool, Emer). To
slow cycling (SL, Cr), press touch keys
or
toggle
between FA & SL. The cycle rates are as below different
selections:
Mode
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
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20)
H
e
a
t
T
e
m
p
e
r
a
t
u
r
e
L
i
m
i
t
R
a
n
g
e
– This feature adjusts
INSTALLER/CONFIGURATIONMENU
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
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
the
98°F by pressing the
or
key. The "temperature
second stage will energize immediately. With FA OFF,
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,
F145-1328, or outdoor, F145-1378) be connected to it
and indicates the measured temperature in clock digits.
This menu enables you to select the remote sensor and
also configure it as indoor or outdoor temperature sensor.
Factory default is off. Select Remote On 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. An outside remote
sensor must also be installed. When the outside tem-
perature falls below the selected setpoint temperature,
dF, the thermostat will switch to gas heat and shut down
"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
the compressor. Use the
or
keys to select the
desired setpoint temperature in the range of 5 to 50.
Factory default is 5, which disables this feature. See
Dual Fuel Temperature and Setpoint in Programming
section.
Select Compressor Delay – When dF is enabled, the
shut down of the compressor(s) is delayed for a time
period after the auxiliary stage is energized. This delay,
Cd, is factory set at 60, but can be set in the range of 0
to 99.
pressing the
button to advance.
Return to this point when you are ready to start your
selected lock-out and continue by:
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.
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.
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
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OPERATINGYOURTHERMOSTAT
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.
Manual Operation (Bypassing the Program)
Programmable Mode
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
Fan Prog will run the fan when the heating or cooling system
is on. In addition, when the thermostat has not called for heat temperature you set in HOLD will be maintained 24 hours a
or cool for more than 60 minutes, it will begin to cycle the fan
for 10 minutes on and 20 minutes off to improve indoor air
quality. This is the Comfort Circulating Fan Feature.
day, until you manually change the temperature or press Run
Schedule to cancel HOLD and resume the programmed
schedule.
Choose the System Setting
Program Override (Temporary Override)
(Cool, Off, Heat, Emer, Auto)
Press the SYSTEM button to select:
Press
or
buttons to adjust the temperature. This will
override the temperature setting for a (default) four hour
override period. The override period can be shortened by
Heat: Thermostat controls only the heating system.
pressing
or lengthened by pressing . Program Override
Off: Heating and Cooling systems are off.
period can range from 15 minutes to 7 days.
Cool: Thermostat controls only the cooling system.
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
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.
but you want heat, press both
or
buttons simulta-
Emer: Setting is available only when the thermostat is
configured in HP1 or HP2 mode.
neously to change to the other mode.
Manual Operation for
Non-Programmable Mode
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:
Increment one hour at 2 AM on the second Sunday of March
and decrement one hour at 2 AM on the first Sunday of
November. (New DST effective 2007).
The daylight saving feature can be enabled or disabled in
installer configuration menu. Default is DS ON (enabled).
After entering installer configuration mode, momentarily
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
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
5) Press Set Time once again to display year.
6) Press and hold either the
reach the correct year.
or
touch key until you
7) Press Set Time once again to display month.
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).
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
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PROGRAMMING
Programming Tip: Copy Program
Automatic Schedule
When programming your thermostat, you may copy the
program from one day to another day or group of days using
the Copy key. In 7 day programming mode, a day can be
copied to another day or all six other days. In 5/1/1 day
programming mode the weekday (Mon – Fri) program can be
copied into Sat and Sun or either Sat or Sun.
This feature provides a method to program every day with
the most popular time and temperature settings using one
key. For this feature to be available, the Auto Schedule
options (Installer/Configuration menu item 17, AS Heat, or
item 18, AS Cool) must be selected On.
To use Auto Schedule, press Run Schedule to be sure you
are in normal operating mode. In SYSTEM Heat mode, use
To copy a program from one day to another:
1) In Set Schedule mode, enter the program for the day or
select the day you wish to copy by pressing Advance
Day.
2) Press Copy. The display will show “Copy” next to the
SYSTEM key and the day of the week that will be copied.
3) Press Advance Day. The day being copied will be
indicated and the other days will be flashing.
4) If you wish to copy to all days skip to next step or press
Advance Day until the day you wish to copy to is
flashing.
the
or
keys to select your “Comfort Temperature”.
When your “Comfort Temperature” is selected, press Auto
Schedule key. The key will begin to flash indicating that the
feature is ready to store your selected temperature. Press
Auto Schedule a second time to complete the process. The
Auto Schedule key will disappear to indicate that the Auto
Schedule command has been accepted.
In Heat mode the thermostat will maintain your “Comfort
Temperature” during the Morning, Day and Evening periods
and setback 6° for the Night. Morning period will begin at
6:30 AM and Night period will begin at 10:30 PM.
5) Press Copy. “Copy” will disappear, the day you copied
from will disappear and the day(s) you copied to will be
on.
6) If you wish to copy this same program into other days,
press Copy and repeat steps 3, 4 and 5.
7) Press Run Schedule to return to normal operation.
To set the Auto Schedule temperature for Cool mode, press
SYSTEM to change the mode to Cool and repeat setting the
temperature. In Cool mode, the thermostat will maintain your
selected “Comfort Temperature” continuously.
Fill in the blank schedule on the next page then:
The “Comfort Temperature” can be temporarily overridden by
Enter the Heating Program
changing the setpoint temperature using the
or
keys.
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.
Once Auto Schedule has been set and the key has disap-
peared, it can be reset in the Installer/ Configuration menu.
Entering Fan Program
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.
In the Set Schedule mode, the FAN key is used to select the
fan operation during a program period. The default state of
the Fan key is FAN Auto (fan runs during a call for cool but
not on a call for heat). It can be changed to FAN Prog (fan
runs during a program period). Each press of the FAN key
will change the mode of the fan between Auto and Prog. In
the Run mode, when a program period that has FAN Prog
begins, the fan will turn on and stay on during the complete
period. The display will show FAN On Prog.
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
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.
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.
In the Run mode, pressing the FAN key will change the fan
from Auto (default setting) to On (fan running continuously)
or Prog. When FAN Prog is displayed, the fan will run when
the system cycles. If the system does not cycle for more than
60 minutes, the thermostat will turn the fan on for 10 minutes
and off for 20 minutes to improve indoor air quality. If the
display shows FAN On Prog to indicate the program period
has the fan programmed to run, FAN Prog will override the
programmed setting until Run Schedule is pressed or the
next schedule period begins.
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.
8
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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
78°F
Cooling
Program
6:00 AM
75°F
8:00 AM
83°F
5:00 PM
75°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
75°F Auto 8:00 AM
83°F Auto 5:00 PM
75°F Auto 10:00 PM 78°F Auto
MON
TUE
WED
THU
FRI
6:00 AM
6:00 AM
75°F Auto 8:00 AM
75°F Auto 8:00 AM
83°F Auto 5:00 PM
83°F Auto 5:00 PM
75°F Auto 10:00 PM 78°F Auto
75°F Auto 10:00 PM 78°F Auto
SAT
SUN
9
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PROGRAMMING
Wired Remote Temperature Sensing
One remote temperature sensor can be installed indoor or
outdoor and connected to the thermostat by a maximum
cable length of 100 meters (300 feet). Terminals +, S and -
on the terminal block allow connection of the remote sensor.
The thermostat must have 24 VAC Common connection to
terminal C for the remote sensor to operate. The remote
sensor can be enabled or disabled in the Installer/Configura-
tion menu, item 25.
Example: Local sensor temperature is 80° and the remote
sensor is 70°.
If weight is selected H4, the averaged temperature of 72° will
be displayed.
(1 x 80) + (4 x 70) / 5 = 72°
If weight is selected A2, the average temperature of 73° will
be displayed.
(1 x 80) + (2 x 70) / 3 = 73.3°
When remote sensor, Remote, is selected Off (factory
default), no remote sensor is enabled. When remote sensor
is selected On, the next step is to select the remote as
indoor, Remote In, or outdoor, Remote Outdoor. If the
remote is selected as Remote In, an additional step will be to
select if the temperature shown on the display will be from
the thermostat, LS On, or the remote sensor Ls Off.
If weight is selected L1, the average temperature of 75° will
be displayed.
(1 x 80) + (1 x 70) / 2 = 75°
The example shows that the weight selected would prioritize
the overall averaged temperature between the two sensors.
The high weight selection caused the remote sensor to have
a higher influence in the calculated temperature average
than the local sensor and the low weight selection caused
the remote sensor to have less influence.
In normal operation, when a remote sensor is enabled the
time digits of the display will alternate between the time and
the remote temperature for three seconds each. Above the
remote temperature will be Remote, for indoor sensor or
Outdoor Remote, for outdoor sensor. If the remote sensor is
an indoor sensor and the local display has been disabled,
the temperature displayed as the room temperature will be
the remote sensor temperature.
Dual Fuel Temperature Setpoint
When the thermostat is configured for Heat Pump mode and
an outside remote sensor is installed, the thermostat can
monitor the outside temperature. When the outside tempera-
ture falls below a user selectable temperature, the thermostat
will switch to gas heat and shut down the compressor. This
eliminates the need for a fossil fuel kit.
Sensing Range:
Outdoor temperature range is -40 to 140oF
Indoor temperature range is 32 oF to 99oF
The user selectable temperature is called the dual fuel
temperature setpoint, dF and is set in the Installer/Configura-
tion menu, item 26. The dual fuel temperature setpoint can
be set to a temperature of 5 through 50. A selection of 5
(default setting) disables this feature and menu selection of
Cd will not be available.
Weight of Remote Reading:
The thermostat is designed to receive the temperature of the
indoor remote sensor and average, or weight, it with the local
sensor in the thermostat for each program period. The
averaging will be active only when the local sensor and the
indoor remote sensor are both functional and enabled in the
Installer/Configuration menu.
After the dual fuel temperature setpoint is set above 5 and
is pressed, a delay, Cd, can be set for compressor shutdown
after the auxiliary stage is energized. This delay can be set
from 0 seconds to 99 seconds to minimize the time that the
system may blow cooler air until the alternate source of heat
comes on. Default setting for delay is 60. When setting the
When the thermostat is in the Set Schedule mode, the weight
of the indoor sensor will be shown in the current temperature
digits of the display. The weight will show as A2 (average
and default), H4 (high) or L1 (low). Pressing the
and
delay if the
or
keys are held depressed, the setpoint
keys at the same time will change the weight for the program
period. The weight of the local sensor is fixed.
will increase or decrease at the rate of one degree every half
second for the first three seconds and double the speed after
three seconds.
In normal operation of the thermostat, the current tempera-
ture displayed will be the weighted average of the local
sensor and the remote sensor using the formula (local
sensor weight x local sensor temperature) + (remote sensor
weight x remote sensor temperature) / (local sensor weight +
remote sensor weight).
10
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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 7 (heat) or 8 (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
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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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