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C˚ / F˚ Selection (Celcius / Fahrenheit)
Your thermostat is set for C˚ mode from the factory. To change to F˚ mode, follow
these steps:
■ Press and hold the Up key.
■ Use a paper clip to press the reset key.
■ Once all the LCD segments turn on, release the Up key.
NOTE: To return to C˚ mode, press the reset key with a paper clip. Do not press
any other keys during the reset process.
All programs and settings will be lost when pressing RESET.
OPERATION
Setting Day and Time
■ The LCD will show this information
when batteries are first installed, or
after the Reset button is pressed. The
temperature will update after a few
seconds.
■ During time and day setting mode,
the temperature and program dis-
plays will go blank.
■ Example: Set the Thermostat to the
current time of 2:16 pm on Saturday.
Refer to the Steps below.
STEP 1:
■ Press to enter time and day setting
mode. The current hour and the AM /
PM indicator will be flashing.
■ Press to change the Hour up or
down to the current hour.
Note the AM / PM indicator, as the
display will change at 12 AM and
12 PM.
STEP 2:
■ Press again to change from hour
setting to minute setting. The cur-
rent minute will be flashing.
■ Press to change the Minute up or
down to the current minute.
STEP 3:
■ Press again to change from minute
setting to day setting. The current
day will be flashing.
■ Press to change the Day up or down
to the current day.
STEP 4:
■ Press again to change back to the
normal display.
NOTE: You may press
hold
/return
at any time during Day and Time setting to
return to the normal display.
12 Hr. / 24 Hr. Time Format
Your thermostat is set from the factory in normal 12 (AM / PM) time format. To change to
24 hour (military) time, press
program
at any time while the Hour, Minute, or Day is
flashing to toggle between the 12 hour and 24 hour formats. The AM / PM indicator will
not be displayed in 24 hour mode. Both the current time and all programs will automati-
cally change to the selected format.
PROGRAMMING
The following time and temperature settings are pre-programmed into the thermostat:
Temperature in C˚ (F˚)
Program Number Time Heat Cool
1 6:00 am 20˚C (68˚F) 26˚C (78˚F)
2 8:00 am 16˚C (60˚F) 29˚C (85˚F)
3 4:00 pm 20˚C (68˚F) 26˚C (78˚F)
4 10:00 pm 16˚C (60˚F) 28˚C (82˚F)
■ All 7 days of the week have the same default programs.
Personal Program Schedule
■ You can revise the factory programs to match your own schedule. Use this Personal
Program Schedule to determine which times and temperature settings match your
comfort and energy saving requirements. Use a pencil so you can revise your records
each time you change your program settings.
Heating
Day Program 1 Program 2 Program 3 Program 4
Monday – Time Time Time Time
Friday Temp Temp Temp Temp
Saturday – Time Time Time Time
Sunday Temp Temp Temp Temp
Cooling
Day Program 1 Program 2 Program 3 Program 4
Monday – Time Time Time Time
Friday Temp Temp Temp Temp
Saturday – Time Time Time Time
Sunday Temp Temp Temp Temp
Revising Programs
■ Familiarize yourself with manually changing programs, so that you can easily modify the
programs as your comfort needs change. Follow the steps below to change the program
times and temperatures.
NOTE: 1) The program time can be set in 10-minute increments.
2) The program temperature can be set in increments of 1˚C (1˚F).
3) After 15 seconds without a key press, the thermostat will return
to normal display mode.
4) When setting the program time, note the AM / PM indicator.
STEP 1:
■ Slide the System Switch to the HEAT
or COOL position to program the
corresponding system.
NOTE: If the System Switch is in
the OFF position, the last posi-
tion used will be programmed.
STEP 2:
■ Press to enter program mode.
HEAT or COOL will be displayed on
the LCD.
STEP 3:
■ The Program hour and AM or PM
indicator are flashing. Press to change
the hour.
STEP 4:
■ Press again to change to the minute
position. The current minute will be
flashing.
■ Press to change the minute.
STEP 5:
■ Press again to change to the program
temperature. The current temperature
will be flashing.
■ Press to change the temperature.
STEP 6:
■ Press again to move to the next
program number.
■ Repeat Steps 3 through 5 to change
the remaining Weekday and Weekend
programs. (There are a total of 8
programs.)
■ After cycling through all 8 programs,
press again to return the display to
normal.
■ Press at any time to exit the Pro-
gram Mode.
Reviewing Programs
To review your program settings, press
program
repeatedly to cycle through the pro-
grams. You can also make changes at any time.
System Selector Switch
The System Selector switch on the front of the thermostat
determines the operating mode of the thermostat. You may
select COOL, OFF, HEAT.
NOTE: Anytime you install or remove the thermostat from
the wallplate, slide the System Selector to the OFF posi-
tion to prevent the possibility of a rapid system On-Off.
Fan Switch
The Fan switch should normally be located in the
AUTO position. The Fan will be turned on along with
normal operation of your system. In a normal gas or
oil furnace, the Fan will be turned on by your furnace
after its warm-up delay. For electric heat, air condi-
tioning, and heat pump operation, the Fan will turn
on with the system.
To run the Fan on continuously, slide the Fan switch to the ON position.
Temporary Manual Override
To temporarily change the current set temperature without affecting your
program:
■ Press and hold for about 1 second
to enter Manual Override mode.
When display flashes, you can release
the key.
■ Press again to change to your desired
Set Temperature. Hold the key for 2
seconds to fast-advance the Set
Temperature.
■ Press to return to normal mode, or
wait 5 seconds for it to return auto-
matically.
■ The current program number will
flash to signify the Temporary
Override.
■ At the next program change time, the
Temporary Override is cancelled, and
the next program temperature be-
comes the setpoint temperature.
To end the Temporary Manual Override:
■ Press, then press again. This will return the set temperature to the
current program set temperature.
Permanent Override
To hold your Manual Override for vacation or just an extended period of time:
■ Press to make the current program
temperature the HOLD tempera-
ture. HOLD will be displayed on
the LCD, and the Program number
will disappear.
■ Follow the Temporary Manual
Override instructions above to
change the Permanent Manual
Override temperature.
■ You can confirm the held set tem-
perature by pressing for less than
1 second.
To end the Permanent Manual Override:
■ Press again. The thermostat will return to the current program, and the
HOLD display will be canceled.
Filter Change Indicator
Your thermostat measures the number of hours your heating and cooling system has been
in use. To maximize your system’s performance and energy efficiency, change or clean your
filter regularly.
■ When the total system runtime for
heat and cool reaches 400 hours,
the Filter Change Indicator will
flash as a reminder to check your
system’s filter.
■ After changing or cleaning the
system’s filter, press and hold the
Filter Key for 3 seconds. The dis-
play will blink, and the timer will
be reset to zero.
Note: Pressing the Filter Key at any time for less than 3 seconds will cause the
Filter indicator to appear on the LCD. This is only to confirm key operation, and the
timer is not affected unless the key is held for greater than 3 seconds.
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AM
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