SETTING THE TIME AND DAY
To change
current day.
Open the drop down door on the front of the thermostat. Rotate the dial to the SET
DAY/TIME position. You should see the display pictured above with a day of the week flashing.
When you are finished setting the day and time, rotate the dial to RUN to return to normal
operation or to another position to continue programming.
C
A
U
T
I
O
N
The TX1500 is protected against normal static electric discharges.
However, in extremely dry weather you should touch another metal object
before the TX1500 to avoid potential loss of programs.
To change the
current time.
To set current time. The (e.g.
“12:00”) will be flashing.
The TX1500 alternately displays the
current time and the room
temperature. It also displays the day of
the week and the currently active program period that is controlling the temperature: MORN,
DAY, EVE, or NIght.
The set point temperature will appear in the right side of the display. In the winter, set the
system switch to HEAT to control your heating system. In the summer, set the switch to COOL
to control your air conditioner. In spring and fall or when windows are open, you can set the
system switch OFF.
Setting the FAN switch to AUTO
automatically runs your system’s fan
during heating and cooling. Setting the
FAN switch to ON runs your system’s
fan continuously even without heating
or cooling.
N
O
T
E
The FAN switch works only if your system
provides a wire for the TX1500’s “G” terminal.
• Press UP/DOWN to change the current temperature
setting. The OVERRIDE indicator appears on display.
• The OVERRIDE feature will be automatically canceled
at the start of the next program period.
• To cancel OVERRIDE prior to next program period press
UP/DOWN until original set temperature
appears. OVERRIDE indicator will disappear from display.
PROGRAMMING THE TX1500
You can change any preset times and/or temperatures to suit your schedules for the
weekday, Saturday and Sunday programs. Each period (Morning,
Day, Evening, and Night) is programmed for HEAT and for COOL.
HEAT
OFF
COOL
Select HEAT to program the
TX1500 for controlling your heater.
To program temperature.
To change the start
time for MORN.
To move to DAY.
To change the temp.
setting for MORN.
To program temperature.
To change start time
for DAY.
To move to EVE.
To change the temp.
setting for DAY.
To program temperature.
To change the start
time for EVE.
To move to NIGHT.
To change the temp.
setting for EVE.
To program temperature.
To change the start
time for NIGHT.
Rotate dial to RUN position to
start the programs.
To change the temp.
setting for NIGHT.
Rotate dial to SET WEEKDAY PROGRAM. To program SATURDAY or SUNDAY, rotate the
dial to SET SATURDAY or SET SUNDAY PROGRAM. With dial on SET WEEKDAY
PROGRAM, you will see the display above.
TEMPORARY
TEMPERATURE OVERRIDE
TEMPERATURE OVERRIDE AND
TEMPERATURE HOLD
SU
PM
DAY
TU
PM
EVE
HEAT
OVERRIDE
TU
AM
MORN
HEAT
PROGRAM
FOR:
MO
WE TH FR
START AT:
SET TEMP
DOWN
UP
These features let you change the current Set
Temperature without changing the programs stored
in your thermostat’s memory.
OR
Select COOL to program the
TX1500 for controlling your air conditioner.
OPERATION
This thermostat is “armchair programmable”
You can make any program or setting
changes with the thermostat body off or on
the wall thermostat base.
NEXT
UP
DOWN
NEXT
UP
DOWN
NEXT
UP
DOWN
NEXT
NEXT
UP
UP
UP
DOWN
DOWN
NEXT
UP
DOWN
NEXT
UP
DOWN
NEXT
UP
DOWN
UP
DOWN
Push in the RESET key. This sets
the built-in heating and cooling
programs. To review the built-in
programs, rotate the dial to SET
WEEKDAY / SATURDAY / SUNDAY
PROGRAM.
You can use the built-in
programs as shown, or change them
as you wish. Each day is divided into
four periods. Each period has its
own starting time and temperature.
THE BUILT-IN
E
NERGY
S
TAR
®
PROGRAMS
The dial must be in the RUN
position to close the door.
PERIOD
HEAT
COOL
WEEKDAYS
MORN
6:00 AM 70°
6:00 AM 78°
preprograms
DAY
8:00 AM 62°
8:00 AM 85°
EVE
6:00 PM 70°
6:00 PM 78°
NIGHT
10:00 PM 62° 10:00 PM 82°
MORN
6:00 AM 70°
6:00 AM 78°
SAT & SUN
DAY
8:00 AM 62°
8:00 AM 85°
preprograms
EVE
6:00 PM 70°
6:00 PM 78°
NIGHT
10:00 PM 62° 10:00 PM 82°
FILTER USAGE MONITOR
The FILTER Monitor counts the hours since the filter in your blower was last changed. After
250 hours of use, FILTER will appear in the display. After you change the filter, set the
thermostat’s FILTER Monitor back to zero as follows.
TEMPERATURE SWING
A thermostat works by turning your heating or cooling system on and off whenever the
room temperature varies a certain number of degrees from the set-point temperature. This
variation is the “swing.”
Your system should cycle on about 3 to 6 times per hour. A smaller swing number
increases the number of cycles, so room temperature is more constant. A larger swing
number decreases the number of cycles, to save energy in most cases.
TEMPERATURE CALIBRATION
SWING SETTINGS
PROGRAM LOCK
CHANGING FROM °F TO °C AND A 12HR CLOCK TO A 24HR CLOCK
VACATION TEMPERATURE HOLD
TU
PM
EVE
HEAT
HOLD
HR
FILTER
HR
FILTER
SET
AM
MORN
HEAT
TH
To change the FILTER Usage Monitor limit
To reset the
counter
Rotate the dial
to FILTER
Rotate the dial to FILTER
To disable the FILTER Usage Monitor set the limit to 0 hours
To change the
limit from
0-500 hours
Rotate the dial to
SET DAY/TIME
Press together
To adjust the
thermostat
To prevent tampering with set programs.
The sequence of keys to lock and unlock the program:
Hold for two
seconds
Dial must be in
the run position
Press together
ADVANCED FEATURES
SET TEMP SWING
To change
swing
•
WARNING: Making these changes will require you to reset the thermostat.
• Located to the right of the gas electric switch are two black jumpers C/F and 24/12H.
• To change to Celsius - remove jumper - C/F.
• To change to a 24HR clock - remove jumper- 24/12H.
• Press the reset key on the front of the thermostat for
changes to take effect.
• Reprogram as necessary.
ELECT
GAS
RL1
SW1
C/F
5/2 MIN
ON/OFF
24/12H
Press to set.
• Press HOLD. Adjust temperature as
desired with UP/DOWN.
• Temperature setting will not change even
after next program period begins.
• To clear, press HOLD again.
HOLD
NEXT
NEXT
HOLD
NEXT
NEXT
HOLD
NEXT
UP
UP
DOWN
UP
DOWN
UP
DOWN
NEXT
NEXT
HOLD
5 MIN/2 MIN MINIMUM ON/OFF TIME
Your thermostat has an internal timer built in to protect your compressor. The timer forces a
minimum on/off time of 5 minutes. You may change this minimum on/off time to 2 minutes. To
accomplish this, remove the jumper labeled 5/2 MIN. You must press the small reset button on
the face of the thermostat for the changes to take effect.
W
A
R
N
I
N
G
Making these changes will require you to reset the thermostat. Copy any of your customized
programs onto the blank chart. This will be your reference to re-enter the programs afterwards.
