OWNER’S
GUIDE
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Dallas, Texas, USA
Elite® Series
Programmable Touch Screen Thermostats
IMPORTANT
Read and save these instructions.
505,045M
1/2005
Thermostat Features
DLarge, clear display with backlight shows the current tem-
perature, the current temperature setting and the time −−
even in the dark.
DMenu−driven programming makes set−up effortless.
DTouch screen interaction.
DReal−time clock keeps time during power failures and auto-
matically converts to daylight savings time.
DꢀSaving Changes" notification assures you that changes
have been saved.
DChange / check reminders let you know when it is time to re-
place filters, UV lamps, batteries, etc.
DOverride options allow you to easily override the pro-
grammed schedule.
DSame−schedule programming allows you to program a
schedule for several days at once. No need to copy.
DArmchair programming allows you to remove the thermo-
stat from the wall while you program your schedules.
Page 3
Thermostat Display
SYSTEM
SELECT EMERGENCY
HEAT, HEAT, OFF OR COOL
UP ARROW
RAISES
TEMPERATURE
SETTING
FAN
SELECT AUTO,
ON OR CIRC
DOWN ARROW
LOWERS
TEMPERATURE
SETTING
TUE
FAN
Inside
AUTO
Set To
Following
Schedule
SYSTEM
Outside
HEAT
AM
SCHED
HOLD
CLOCK
SCREEN
MORE
SCHED
SELECT TO
ENTER
SCHEDULE
MODE
CLOCK
USED TO SET
THE TIME
FORWARD OR
BACK
MORE
SHOWS FURNACE
FILTER, UV LIGHT
OR HUMIDIFIER
PAD CHANGE
REMINDER
HOLD
SCREEN
SETS A PERMANENT
HOLD AND ACTIVATES
VACATION HOLD
LOCKS TOUCH
SCREEN FOR
CLEANING
Page 4
Thermostat Display (Continued)
TUE
SHOWS CURRENT
DAY OF THE WEEK
INSIDE
SHOWS CURRENT
INSIDE TEMPERATURE
FAN
SHOWS FAN
SETTING
SET TO
SHOWS CURRENT
TEMPERATURE
SETTING
TUE
FAN
Set To
Inside
AUTO
Following
Schedule
SYSTEM
Outside
HEAT
AM
SCHED
HOLD
CLOCK
SCREEN
MORE
SYSTEM
SHOWS
CURRENT
SYSTEM
POSITION
OUTSIDE
SHOWS CURRENT
OUTSIDE TEMPERATURE
(If system includes outside
temperature sensor)
FOLLOWING
SCHEDULE
TIME
SHOWS CURRENT
TIME OF DAY, HOLD
INDICATES THAT
THERMOSTAT IS
FOLLOWING THE
PROGRAMMED
SCHEDULE
TIME REMAINING OR
NUMBER OF VACATION
DAYS REMAINING
Page 5
System Settings
TUE
FAN
Set To
Inside
AUTO
Following
Schedule
SYSTEM
Outside
HEAT
AM
SCHED
HOLD
CLOCK
SCREEN
MORE
PRESS SYSTEM
SELECT SETTING OF HEAT,
OFF, COOL OR EM HEAT
(Heat pump systems only)
SYSTEM SETTINGS
The system setting options vary based on your heating
and/or cooling type.
HEAT −− Thermostat controls heating system.
OFF −− Both heating and cooling systems are off.
COOL −− Thermostat controls cooling system.
AUTO −− The thermostat switches the system from the
heating mode to the cooling mode based on tempera-
ture.
EM HEAT −− Heat pump systems only −− Thermostat
controls emergency heat and auxiliary heat, if needed.
Heat pump compressor is not operational.
Page 6
Fan Settings
FAN SETTINGS
ON −− Fan runs continuously. Use this setting for im-
proved air circulation or for more efficient central air
cleaning.
AUTO −− Fan runs only when heating or cooling sys-
tem is on.
CIRC −− Fan runs randomly approximately 35% of the
time. Use this setting for improved air circulation or for
more efficient central air cleaning when you do not
want the fan to run continuously.
PRESS FAN.
SELECT SETTING:
ON, AUTO OR CIRC.
TUE
FAN
Set To
Inside
AUTO
Following
Schedule
SYSTEM
Outside
HEAT
AM
SCHED
HOLD
CLOCK
SCREEN
MORE
Page 7
Program Your Heating and Cooling Schedule
NOTE − The thermostat includes a battery which makes it
possible for you to remove the thermostat from the wall-
plate during program. See page 19.
Your thermostat can control up to four different schedule peri-
ods per day:
Wake −− Time when you awaken and want your home at a
comfortable temperature.
Leave −− Time when you leave the home and prefer an ener-
gy−saving temperature setting.
Return −− Time when you return home and want your home to
return to a more comfortable temperature setting.
Sleep −− Time when you are asleep and prefer an energy−
saving temperature setting.
NOTE − Schedule times are in 15−minute intervals.
EDIT THE SCHEDULE:
1 − Press the SCHED key. The SCHEDULE screen will be
displayed.
2 − Press the EDIT key. The screen will change to display the
days of the week across the top.
MON
TUE
WED
THU
FRI
SAT
SUN
OK TO PICK MULTIPLE DAYS
CANCEL
Page 8
Program Your Heating and Cooling Schedule (Cont.)
3 − Select any combination of days to edit. You may select
multiple days. These should be days that you wish to follow
the same schedule. Check marks appear next to the days
that are selected. After the first day is selected, the SCHED-
ULE screen returns to the display.
4 − Press the WAKE key. The WAKE key will flash to show it
is selected.
5 − Press the UP and DOWN keys to modify time and heat
and cool temperatures shown on the screen.
6 − Press LEAVE key and repeat step 5.
7 − Press RETURN key and repeat step 5.
8 − Press SLEEP key and repeat step 5.
MON
TUE
WED
THU
FRI
SAT
SUN
OK TO PICK MULTIPLE DAYS
FAN
HEAT
CIRC
CANCEL
PERIOD
AM
COOL
DONE
WAKE
LEAVE RETURN SLEEP
CANCEL
Page 9
Program Your Heating and Cooling Schedule (Cont.)
NOTE − The FAN setting can be programmed for ON, AUTO
or CIRC for each period selected. See following page for
more information about fan setting options.
9 − Press DONE key when finished. Saving changes screen
appears to indicate that schedule changes are being saved to
the days selected.
10 − Repeat steps 1 through 9 to set a program schedule
for the remaining days of the week. Example: If Mon − Fri
was selected first, repeat steps 1 through 9 to program Sat
and Sun.
NOTE − To exit the schedule without saving changes, press
CANCEL key at any time.
MON TUEꢀꢀꢁꢂꢃWEDꢀꢀꢁꢂTHUꢀꢀꢄꢂꢃFRI
SAVING CHANGES
Page 10
Fan Schedule
The FAN setting can be programmed for ON, AUTO or
CIRC for each period selected:
ON −− Fan runs continuously. Use this setting for improved air
circulation or for more efficient central air cleaning.
AUTO −− Fan runs only when heating or cooling system is on.
CIRC −− Fan runs randomly approximately 35% of the time.
Use this setting for improved air circulation or for more effi-
cient central air cleaning when you do not want the fan to run
continuously.
Fan Status Display on Home Screen −− If the fan program is
scheduled, AUTO is displayed as the fan setting, along with
the particular fan setting that has been programmed. For ex-
ample, if, during the WAKE period, the Fan has been set to
AUTO, then AUTO is shown as the fan setting. However, if,
during the WAKE period, the Fan has been set to ON, both
AUTO and ON are displayed. AUTO indicates that the fan
has been scheduled and ON indicates that the fan has been
scheduled to be ON.
Manually Override Scheduled Fan Setting −− If the fan set-
ting is scheduled, press the FAN key, then press the desired
fan setting to manually override the scheduled fan setting.
Fan operation will return to the programmed operation when
the next schedule period begins.
THU
FAN
Inside
Set To
ON
AUTO
Following
Schedule
SYSTEM
HEAT
AM
SCHED
HOLD
CLOCK SCREEN
Page 11
Cancel a Schedule Period
You may wish to cancel a period to match your lifestyle. For
example, if someone is always home during the day on Tues-
day, you can cancel the LEAVE and RETURN periods to
have the thermostat hold the WAKE temperature until the
SLEEP period is reached.
1 − Press the SCHED key. The SCHEDULE screen will be
displayed.
2 − Press the EDIT key. The screen will change to display the
days of the week across the top.
3 − Select the day or days of the week that are affected by
the schedule change.
4 − Press the schedule period you want to cancel: WAKE,
LEAVE, RETURN or SLEEP. Once selected the period will
flash to show it is selected.
5 − Press the CANCEL key. The time, temperature(s) and
fan settings will all dissappear from the screen. The bar
above the selected period is removed to indicate that the se-
lected period was cancelled.
6 − Press DONE key.
NOTE − A schedule period may be reinstated at any time by
entering the schedule edit screen, selecting the period and
pressing the arrow keys to set the desired time and tempera-
tures.
SUN
TUE WED
THU
FRI
SAT
MON
OK TO PICK MULTIPLE DAYS
FAN
HEAT
COOL
DONE
WAKE
LEAVE RETURN SLEEP CANCEL
Page 12
Set the Time
1 − Press the CLOCK key. The current time setting will be
displayed as shown below.
2 − Use the arrows to set the correct time.
3 − Press DONE key.
IMPORTANT − The current day of the week should be dis-
played correctly on this screen. If not, refer to the Advanced
Settings section to correct the day of the week display.
TUE
AM
DONE
CANCEL
Page 13
Override Temperature Setting −− Temporary Hold
You may use the temporary hold function to override the pro-
grammed temperature setting until the next scheduled period
or until a particular time that you wish.
1 − Press the UP or DOWN arrow next to the temperature
display to adjust the temperature as desired.
NOTE − ꢀHold Temperature Until" appears on the screen. The
currently programmed start time of the next scheduled period
also appears, as does an additional set of arrows.
2 − Use the UP and Down arrows next to the displayed
time to set the time that you wish for the thermostat to
resume the schedule.
NOTE − The time arrows are displayed for approximately
seven seconds. Press the screen where the hold temperature
time is shown to allow the arrows to reappear.
3 − Press CANCEL or SCHED key to cancel temperature
hold and resume schedule. ꢅFollowing Schedule" appears
on the screen to indicate that the temporary hold has ended.
TUE
FAN
Inside
Set To
AUTO
SYSTEM
Hold Temperature
Until
HEAT
PM
SCHED
HOLD
CLOCK
SCREEN
CANCEL
Page 14
Override Temperature Setting −− Permanent Hold
The permanent hold function overrides the programmed tem-
perature setting until the permanent hold is cancelled.
1 − Press the HOLD key.
NOTE − ꢀPermanent Hold" appears on the screen under the
current time.
2 − Use the UP and Down to adjust the temperature to the
setting that you want the thermostat to hold.
3 − Press CANCEL key to cancel permanent hold and re-
sume schedule. ꢅFollowing Schedule" appears on the
screen to indicate that the hold has ended.
TUE
FAN
Inside
Set To
AUTO
SYSTEM
HEAT
AM
Permanent
Hold
SCHED
HOLD
CLOCK
SCREEN
CANCEL
Page 15
Override Temperature Setting −− Vacation Hold
You may use the vacation hold function to override the pro-
grammed temperature setting for a designated number of days.
1 − Press the UP or DOWN arrow next to the temperature
display to adjust the temperature as desired.
NOTE − ꢀHold Temperature Until" appears on the screen. The
currently programmed start time of the next scheduled period
also appears, as does an additional set of arrows. This is the
time of day that the override will expire after the hold period ends.
2 − Press the HOLD key twice. Screen shows ꢅHold Tempera-
ture Until" one day.
3 − Press the UP and DOWN arrows to adjust the number of
days you would like to override the schedule.
NOTE − The arrows used to adjust the number of days are dis-
played for approximately seven seconds. Press the screen
where the number of days are shown to allow the arrows to re-
appear.
4 − Press the CANCEL key to cancel the vacation override
early.
NOTE − When the programmed vacation hold expires, the
screen displays ꢀFollowing Schedule" to indicate that the hold
has ended.
THU
FAN
Inside
Set To
AUTO
SYSTEM
Hold Temperature
Until
HEAT
DAYS
SCHED
CLOCK
SCREEN
CANCEL
Page 16
Temperature Recovery Feature
Your thermostat is equipped with a feature that accommo-
dates recovery time to ensure your comfort.
Recovery time is the time that it takes your heating and cool-
ing equipment to recover from energy−saving settings pro-
grammed during away or asleep periods. Recovery time
depends on local weather, your schedule, the contruction of
your home and your heating and/or cooling equipment.
Your thermostat tracks the time that it takes for your system
to reach your desired settings (recovery period). This allows
the thermostat to accommodate this recovery period and to
ensure your comfort at the programmed wake and return
settings.
For example, your WAKE period is programmed for 6:00
a.m. and 70°F. The thermostat activates heating in advance
of 6:00 a.m. to ensure that your desired comfort setting of
70°F is reached by the time you awake.
A recovery notice is displayed when the system is operating
before the scheduled time.
TUE
FAN
Set To
Inside
AUTO
Following
Schedule
SYSTEM
RECOVERY
HEAT
AM
SCHED
HOLD
CLOCK
SCREEN
MORE
Page 17
Clean the Thermostat Screen
The thermostat screen may be cleaned, if necessary.
1 − Press the SCREEN key. The thermostat locks the touch
screen for 30 seconds to allow for cleaning.
2 − Use a damp cloth slightly moistened with water or
household glass cleaner to clean the screen.
IMPORTANT − Do not spray any type of liquid directly onto the
thermostat. Spray the water or household glass cleaner on a
cloth, then use the cloth to clean the thermostat screen.
3 − Repeat the above steps as necessary.
4 − Press the DONE key to return to the home screen and
normal operation.
OK TO
CLEAN
SCREEN
DONE
Page 18
Battery Replacement
If your thermostat has batteries, a low battery warning flashes
on the home screen for approximately 30 days.
IMPORTANT − Batteries should be replaced once per year to
prevent leakage and to prevent loss of battery back−up in a
power outtage. You may also wish to replace the batteries prior
to leaving your home for more than a month.
1 − When the low battery indicator is flashing, replace the
batteries promptly with three fresh AAA alkaline batteries.
2 − Remove the thermostat from the wallplate by pulling
straight out.
WALL
Page 19
Battery Replacement (Continued)
3 − Remove the old batteries and insert three fresh AAA
alkaline batteries, as marked on the thermostat.
BACK OF THERMOSTAT
+
+
+
BATTERIES
(3)
4 − Align the terminal screw blocks with the pins on the
back of the thermostat.
5 − Push the thermostat straight onto the wallplate until it
snaps into place.
WALLPLATE
PINS ON
BACK OF
THERMOSTAT
TERMINAL
SCREW
BLOCK
Page 20
Reminder Timers
The reminder timers notify you when it is time to change the
furnace filter, humidifier pad or ultraviolet lamp. When one of
the set timers expires, a reset key appears on the home screen.
Reset Timers
1 − ꢀChange" reminder appears on the screen when the
timer expires.
2 − Press the RESET key to restart the timer. If more than
one timer expires at the same time, press the RESET key until
all timers have been reset.
MON
SUN
TUE WED
THU
FRI
SAT
CHANGE FILTER
Set to
Inside
Following
Schedule
ꢃꢃ
View or Reset Timer Settings Before They Expire
1 − Press the MORE key until the timer you want to modify
appears on the screen.
2 − Press the EDIT key to change the Timer Reload Value.
Use the UP or DOWN arrow keys to change the number of run
time days. See the Advanced Settings section, step 8 through
10 for more information.
3 − Press the DONE key to return to the selected timer.
4 − Press the RESET key to reset the timer to the Timer Re-
load Value.
5 − Press the DONE or CANCEL key to return to the home
screen.
Page 21
Built−In Compressor Protection
The thermostat provides built−in compressor protection (mini-
mum−off timer) that prevents the compressor from restarting too
early after a shutdown.
The minimum−off timer is activated after the compressor shuts
off.
If there is a demand for compressor operation during the delay,
the thermostat displays the WAIT message.
When the minimum−off delay expires, COOL ON ( or HEAT ON
in heat pump applications) is displayed solidly on the screen
and the compressor and fan are allowed to operate to meet the
demand.
TUE
FAN
Set to
Inside
AUTO
Wait Cool
Following
Schedule
HEAT
AM
PM
SCHEDꢀꢄꢂꢃHOLDꢀꢄꢂCLOCKꢀꢃSCREENꢀꢁꢂMORE
Page 22
Outdoor Temperature
If an optional outdoor temperature sensor has been installed
with your thermostat, the outdoor temperature is displayed in
the lower right corner of the home screen.
If the temperature is not displayed and an outdoor temperature
sensor has been installed, press the MORE key until the out-
side temperature is displayed.
TUE
FAN
Set To
Inside
AUTO
SYSTEM
Following
Schedule
HEAT
Outside
AM
SCHED
HOLD
CLOCK
SCREEN
MORE
Advanced Heat Pump Features (Select Models)
Some thermostat models, when used in heat pump systems
which include an optional outdoor temperature sensor, provide
additional features. In these applications, the compressor and/or
back−up heat lockout may be based on the outside temperature.
Page 23
Screen Lock
You can fully or partially lock the keys on the touch screen. See
the Advanced Settings section for more information on this fea-
ture. If the thermostat displays a ꢅScreen Locked" message,
your thermostat screen is either fully or partially locked.
TUE
SCREEN LOCKED
FAN
Set To
Inside
AUTO
Following
Schedule
SYSTEM
HEAT
PM
SCHED
HOLD
CLOCK SCREEN MORE
Partially Locked Screen
When partially locked, all touch screen keys are locked except
the temperature up and down arrow keys and the SYSTEM key
access to the user set−up options. The Screen Locked message
is displayed for 5 to 7 seconds each time the user attempts to
press a key that is locked.
When the screen is partially locked, you will be able to adjust
the temperature setting up or down; but schedule settings will
not be accessible. The temporary temperature change lasts
until the next scheduled period. Refer to Temporary Tempera-
ture Override section. To cancel the temporary temperature
override and return to the programmed schedule, press the
CANCEL key.
Fully Locked Screen
When the screen is fully locked, you will still be allowed to ac-
cess the user set−up options through the SYSTEM key; howev-
er, all other touch screen keys are locked and are not functional.
The Screen Locked message is displayed continuously.
Page 24
Advanced Settings
Your thermostat has many advanced settings that can be used
to match your desired use of this important tool. These items
have been set by the installer during the installer set−up pro-
cess; however, use the following information to customize the
settings for your use.
Use the following steps and the User Set−Up table on pages 25
through 27 to customize your thermostat operation.
1 − Press and release the SYSTEM key.
2 − Press and hold the center blank key for approximately five
seconds, until the screen changes.
TUE
CHANGE FILTER UV LAMP HUMIDIFIER PAD
Set To
Inside
Following
Schedule
SYSTEM
EM HEAT
OFF
PM
CANCEL
3 − Release the key when the thermostat display matches the
display below.
DONE
Page 25
Advanced Settings (Continued)
4 − Refer to the figure below to see how the thermostat buttons are
used to make selections.
5− Refer to the table on the following pages to make proper set−up
choices for your application.
6 − When all set−up selections have been made, press the DONE
key to save your settings. The thermostat display will return to
the main screen.
ADVANCE TO NEXT
USER SET−UP
USER
SET−UP
NUMBER
CURRENT
SETTING
DONE
CHANGE THE
CURRENT
SETTING
PRESS TO EXIT
INSTALLER SET−UP
RETURN TO PREVIOUS
USER SET−UP
Page 26
Advanced Settings (Continued)
User
Set−Up
Number
Set−Up
Name
Selection Description
Date
(Year/
first)
Select first two digits of current calen-
dar year (20 for 2005, etc.)
0120
0130
Date
(Year/
last)
Select last two digits of current calen-
dar year (05 for 2005, etc.)
Options: 01 to 99 available.
Select number that represents current
calendar month. Options 1 through 12.
Date
(Month)
0140
0150
Select number that represents current
calendar date. Options 1 through 31.
Date
(Day)
Select the type of scheduling that will
be used.
Schedule Options:
0160
0320
0330
Options 0 − non−programmable thermostat;
4 − fully programmable thermostat
with 7−day scheduling.
Temp.
Display used.
Scale Options: 0 −− Fahrenheit; 1 − Celsius.
Select the temperature display to be
Options: 0 − Off. Thermostat time is
not automatically adjusted for Daylight
Daylight Savings in the Fall and Spring;
Savings 1 − On. Thermostat time is automati-
cally adjusted for Daylight Savings in
the Fall and Spring;
Page 27
Advanced Settings (Continued)
User
Set−Up
Number
Set−Up
Name
Selection Description
Select option for filter change
reminder timer. Options:
0 − Reminder is off;
Filter
1 − 10 run time days;
0500
Change 2 − 30 run time days;
Reminder 3 − 60 run time days;
4 − 90 run time days;
5 − 120 run time days;
6 − 365 run time days.
Select option for humidifier pad re-
Humidifier
Pad
Replace-
ment
Reminder
placement reminder timer. Options:
0 − Reminder is off;
1 − 90 run time days;
2 − 180 run time days;
3 − 365 run time days.
0510
0520
UV Lamp Select option for UV lamp replace-
Replace- ment reminder timer. Options:
ment 0 − Reminder is off;
Reminder 1 − 365 run time days.
Select option for number of schedul-
Number ing periods. Options:
0540
0640
of
2 − Two periods (wake and sleep);
Periods 4 − Four periods (wake, leave, return,
sleep).
Select clock format. Options:
12 − 12−hour clock;
24 − 24−hour clock.
Clock
Format
Page 28
Advanced Settings (Continued)
User
Set−Up
Number
Set−Up
Name
Selection Description
Select screen lockout. Options:
0 − All keys are functional. Screen is
unlocked;
1 − Screen partially locked −− only
temp. up and down keys and ability to
enter installer set−up mode and
modify set−up selections are enabled;
Screen
Lock−Out
0670
2 − Screen fully locked −− only ability to
enter installer set−up mode and
modify set−up selections are enabled.
Page 29
Troubleshooting Tips
If . . .
Then . . .
Key to the right of
the screen key is
blank.
MORE key remains blank unless the Fur-
nace Filter Change Reminder has been
turned on. See User Set−Up Number 0500.
Display is blank.
Check that fresh AAA alkaline batteries are
installed as marked on the thermostat.
Temperature set-
tings do not change.
Check that temperature settings are:
D
D
Heating 40°F to 90°F (4.5°C to 32°C).
Cooling 50°F to 99°F (10°C to 37°C).
Heating system
does not turn on.
D
Set the system to heat by pressing the
SYSTEM key.
D
Check the heat temperature setting to be
sure it is set above the room temperature
and ꢅHeat On" is displayed solidly on the
screen.
D
Check the circuit breaker to make sure it
is not tripped.
D
Check the power switch at the heating
and/or cooling system to make sure it is on.
D
Check the furnace door to make sure it
is closed securely.
D
Wait five minutes for the heating system
to respond.
D
If the problem has not been identified
and corrected, contact a qualified service
technician.
Page 30
Troubleshooting Tips (Continued)
If . . .
Then . . .
Set the system to Cool by pressing the
SYSTEM key.
Cooling system
does not turn on.
D
D
Check the cool temperature setting to be
sure it is set below the room temperature
and ꢅCool On" is displayed solidly on the
screen.
D
Check the circuit breaker to make sure it
is not tripped.
Check the power switch at the heating
and/or cooling system to make sure it is on.
Check the furnace door to make sure it
is closed securely.
Wait five minutes for the cooling system
to respond.
D
D
D
D
If the problem has not been identified
and corrected, contact a qualified service
technician.
Cannot set System
setting to Cool.
Check Installer Set−Up Number 170: Heating
and/or Cooling Type*. Make sure the setting
matches the installed heating and/or cooling
system.
"Heat On" is not dis- Set the System setting to Heat and set the
played on the
screen.
temperature setting above the room temper-
ature. If ꢅHeat On" is shown solidly in the
display, but the heating system does not turn
on, see ꢅHeating system does not turn on"
suggestions on the previous page.
"Cool On" is not dis- Set the System setting to Cool and set the
played on the
screen.
temperature setting below the room temper-
ature. If ꢅCool On" is shown solidly in the
display, but the cooling system does not turn
on, see ꢅCooling system does not turn on"
suggestions at the top of this page.
*Refer to Installation Instructions for access to Installer Set−Up pro-
cedures.
Page 31
Troubleshooting Tips (Continued)
If . . .
Then . . .
ꢅWait" is displayed
on the screen.
Compressor minimum−off timer is activated.
Wait up to five minutes for the compressor
to turn on.
Fan does not turn on Check Installer Set−Up 0180: Fan Control in
in a call for heat
(electric furnaces
only)
Heating*. Make sure Electric Heat option is
selected.
Both heating and Check Installer Set−Up Number 170: Heating
cooling systems are and/or Cooling Type*. Make sure the setting
operating at the
same time.
matches the installed heating and/or cooling
system.
Check to ensure that bare portions of wires
are not touching.
Heating is running in Check Installer Set−Up Number 170: Heating
Cool mode.
and/or Cooling Type*. Make sure the setting
matches the installed heating and/or cooling
system.
Heating system Check Installer Set−Up Number 170: Heating
does not turn off and and/or Cooling Type*. Make sure the setting
the heat tempera-
ture setting is set
below the room tem-
perature ("Heat On"
is not shown in dis-
play.)
matches the installed heating and/or cooling
system.
Red LED is lit in the A system monitor is wired to the thermostat
upper right corner of L terminal. Refer to suggestions given in
the thermostat when Heating or Cooling System Does Not Turn
the system monitor
detects a possible
problem.
On sections in this table.
*Refer to Installation Instructions for access to Installer Set−Up pro-
cedures.
Page 32
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