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5
OPERATING FEATURES
Now that you are familiar with the thermostat buttons and
display, read the following information to learn about the many
features of the thermostat.
• SIMULTANEOUS HEATING/COOLING PROGRAM
STORAGE — When programming, you can enter both your
heating and cooling programs at the same time. There is no
need to reprogram the thermostat at the beginning of each
season.
• TEMPERATURE OVERRIDE — Press
or until the
display shows the temperature you want. The thermostat
will override current programming and keep the room
temperature at the selected temperature until the next
program period begins. Then the thermostat will automati-
cally revert to the program.
• HOLD TEMPERATURE — The thermostat can hold any
temperature within its range for an indefinite period, without
reverting to the programmed temperature. Press HOLD
TEMP/ADV DAY button. HOLD will be displayed. Then
choose the desired hold temperature by pressing
or .
The thermostat will hold the room temperature at the
selected setting until you press RUN PRGM button to start
program operation again.
• °F/°C CONVERTIBILITY — Press SET TIME/SET TEMP
and HOLD TEMP/ADV DAY buttons until the temperature
display is in Celsius (°C). To display Fahrenheit (°F), repeat
the process.
• 12-HOUR/24-HOUR CLOCK DISPLAY — The clock is set
to display 12-hour time, which means that the clock will
display AM and PM time (12:00 AM is midnight; 12:00 PM is
noon). However, you may want to display a 24-hour clock
(military-style time). The 24-hour clock display will show 1:00
PM as 13:00, 2:00 PM as 14:00, and so on. To change to the
24-hour clock display, press SET TIME/SET TEMP and RUN
PRGM buttons at the same time. In the 24-hour clock mode,
AM and PM are not displayed.
• LOW BATTERY INDICATOR — If the 3 “AA” alkaline
batteries are low and should be replaced, the display will be
blank except for the word BATTERY. When the batteries are
low, pressing any button will cause the display to operate for
ten seconds. After ten seconds, the display will be blank
except for the word BATTERY. You cannot program with low
batteries, but you can override setpoint temperature.
• TEMPERATURE DISPLAY ADJUSTMENT — Your new
thermostat has been accurately set in our factory. However,
if you wish, you may adjust your new thermostat tempera-
ture display to match your old thermostat. This can be
accomplished (within a ±4° range) as follows:
1. Press VIEW PRGM and HOLD TEMP/ADV DAY buttons
at the same time.
2. Press or to adjust the displayed temperature to
your desired setting.
3. Press RUN PRGM to resume normal program opera-
tion.
• COPY DAY FUNCTION — This feature allows Monday’s
program to be copied into the rest of the week’s program-
ming. This feature is only available the first time you
program your thermostat. To use this feature, simply
enter the program for Monday as described in PROGRAM-
MING YOUR THERMOSTAT, and then press RUN PRGM.
PROGRAMMING YOUR THERMOSTAT
Now you are ready to program your thermostat. This section will
help you plan your thermostat’s program to meet your needs.
For maximum comfort and efficiency, keep the following guide-
lines in mind when planning your program.
• When heating (cooling) your building, program the tem-
peratures to be cooler (warmer) when the building is vacant
or during periods of low activity.
• During early morning hours, the need for cooling is usually
minimal.
Look at the factory preprogrammed times and temperatures
shown below. If this program will suit your needs, simply press the
RUN PRGM button to begin running the factory preset program.
If you want to change the preprogrammed times and tempera-
tures, follow these steps.
1. Determine the heating and cooling temperatures you want to
use. You may select up to four heating temperatures (HEAT
1, HEAT 2, HEAT 3, and HEAT 4), and up to four cooling
temperatures (COOL 1, COOL 2, COOL 3, and COOL 4).
Use the table below to write down the temperatures you have
selected.
2. Determine the time periods during which you will program
the temperatures you have just selected. You must program
four periods for each day (periods 1, 2, 3, and 4). However,
you may use the same heating and cooling temperatures for
consecutive time periods. Also keep in mind that, for any
given day, you can only program one set of times for both
heating and cooling (for example, if you select 5:00 AM to
begin heating period 1 on Monday, then your cooling period
1 for Monday will also begin at 5:00 AM). However, you may
select different time periods for each day separately (for
example, heating/cooling period 1 on Monday may begin at
5:00 AM, but heating/cooling period 1 on Saturday may
begin at 9:00 AM). Use the table on the following page to plan
your program time periods, and the temperatures you want
during each period. You may also want to look at the sample
program table to get an idea of how the thermostat can be
programmed.
Heating Program for
ALL days of the Week:
Cooling Program for
ALL Days of the Week:
PERIOD TIME TEMP PERIOD TIME
TEMP
1st
2nd
3rd
4th
6:00 AM
8:00 AM
5:00 PM
10:00 PM
68°F
68°F
68°F
64°F
1st
2nd
3rd
4th
6:00 AM
8:00 AM
5:00 PM
10:00 PM
78°F
82°F
78°F
78°F
FACTORY PREPROGRAMMING
* You may only program heating temperatures you have selected into the heating
program and cooling temperatures into the cooling program (for example, you
cannot program the COOL 1 temperature into your heating program).
You may program the temperatures you choose in any order, and you may use the
same temperature in consecutive program periods (for example, you may program
period 1 with temperature 1 and periods 2, 3, and 4 with temperature 2).
You do not have to use all possible temperature choices (for example, you may
want to select temperatures for HEAT 1 and HEAT 2 only – in this case, the HEAT
3 and HEAT 4 temperatures would stay the same as previously programmed).
Heat Temperatures Cool Temperatures
12341234
Your selected
temperatures*
Factory
pre-programmed
temperatures*
68°F68°F68°F64°F78°F82°F78°F78°F