4
5
cont.
cont.
PROGRAMMING
4
4.2
Setting Current Time of Day and Day of Week
NOTE:
It is important for you to set the current time of day (note AM/PM indicator in
display), and the current day of week correctly to avoid problems with program execution.
4.4
Setting Your Energy Saving Programs–Tips Before Starting
• It is important for you to set the current time of day (note the AM/PM indicator in the display),
and the current day of week correctly to avoid problems with program execution. This must be
done prior to entering any program settings.
• The heating and cooling programs have both separate setpoint times and setpoint temperatures.
• This thermostat is preprogrammed with weekday and weekend setpoint times and temperatures
recommended by the Environmental Protection Agency and the U.S. Department of Energy in
their ENERGY STAR
®
program. These settings provide efficient energy savings during normal
heating and cooling modes of operation. If you desire to use the setting in the table, no
further programming is necessary. Review these time and temperature settings prior to
establishing your personal program settings to maximize your savings, and minimize
programming requirements.
PROGRAMMING
4
NOTE:
The thermostat will return to normal operating mode automatically after 15
seconds if no key is pressed. It will also return to normal operating mode immediately if
the
RETURN
button is pressed.
NOTE:
Once you have finished setting the temperature differential you can wait 15
seconds and the thermostat will automatically return to the normal operation mode.
Otherwise, you can press the
RETURN
to set the Extended Hold Time.
1.
When in normal operating mode, press the
DAY/TIME
keypad button. The LCD display will be cleared except
for the time, am/pm indicator and the day of the week.
The hour portion of the time will flash.
2.
Press the or button to set the current hour.
3.
Press the
DAY/TIME
button again, the minute portion
of the time will flash.
4.
Press the or button to set the current minute.
5.
Press the
DAY/TIME
button again, the day of the week indicator will flash.
6.
Press the or button to set the current day of the week.
7.
Press the
DAY/TIME
button again and the thermostat will return to normal operating mode.
4.3
Setting Thermostat User Options
The default user options are compatible with most systems and applications. They are normally
set at the time of installation and usually do not require modification under normal operating
conditions. If you desire to change these settings, simply follow the instructions below.
The default setting is 0.5˚ F (0.25˚ C). The room temperature must change 0.5˚ F (0.25˚ C) from
the setpoint temperature before the thermostat will initiate the system in heating or cooling.
The default setting is 2˚ F (1.0˚ C). This means that the room temperature must change 2˚ F
(1.0˚ C) in addition to the first stage differential setting before the thermostat will initiate the
second stage of heating.
Setting Thermostat Differentials
First Stage Differential
Second Stage Differential
Setting the Extended Hold Time (see also section 5.3)
The default setting is Long (indefinite) Hold. If the HOLD feature is activated, the current
setpoint will be held until HOLD is released.
5.
After pressing the
RETURN
button again, the display
will show "
HOLD LG
", where
LG
is indefinite hold.
6.
Press the or button to change the Extended
Hold time from indefinite (
LG
) to 24 hours (
SH
).
7.
Press the
RETURN
button again to set the Filter
Check Monitor or wait 15 seconds for the
thermostat to return to the normal mode.
4.3
Setting Thermostat User Options
cont.
HOLD
Setting Filter Check Monitor (see also section 5.7)
The default setting is 0 days (Filter Monitor disabled).
8.
After pressing the
RETURN
button again, the display will show "
FILT XXX SET
" where
XXX
is the Filter Monitor interval.
FILT
• Make sure you place the system switch in the
HEAT
or
COOL
modes of operation as appropriate.
You should not enter a program in the
OFF
position.
• When you place the system switch in the
COOL
or
HEAT
modes of operation, the appropriate
indicator will also appear in the LCD display when the system is running.
• When you place the system switch in the
OFF
mode the display will indicate
OFF
.
NOTE:
The temperature differential settings are the same for both the heating and
cooling systems.
4.3.1
1.
In normal operating mode, press and hold the
RETURN
button for 4 seconds. The LCD display will show "
d1 x
",
where "
x
" equals the ˚F / ˚C differential setting. This is
the current temperature differential setting.
2.
Press the or button to set the temperature
differential to your desired setting of 0.5˚, 1˚, or 2˚ F
(0.25˚, 0.5˚, or 1˚ C).
3.
Press and hold the
RETURN
button again and the
LCD display will show "
d2 x
", where "
x
" equals the
˚F / ˚C differential setting. This is the current second
stage differential setting.
4.
Press the or button to set the second stage
differential to your desired setting of 2˚, 3˚, 4˚, 5˚, or
6˚ F (1.0˚, 1.5˚, 2.0˚, 2.5˚, or 3.0˚ C).
4.3.2
4.3.3
9.
Press the or button to change the Filter Monitor
interval to the desired value of 0 (disabled), 30, 60, 90,
120, or 180 days.
10.
Press the
RETURN
button again or wait 15 seconds for
the thermostat to return to the normal mode.
Weekday
Weekend
MORN
DAY
EVE
NIGHT
Time: 6:00 am
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 6:00 am
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 8:00 am
Heat: 62˚ F (17˚ C)
Cool: 83˚ F (28˚ C)
Time: 8:00 am
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 6:00 pm
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 6:00 pm
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 10:00 pm
Heat: 62˚ F (17˚ C)
Cool: 78˚ F (26˚ C)
Time: 10:00 pm
Heat: 62˚ F (17˚ C)
Cool: 78˚ F (26˚ C)
