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Programming A Weekly Comfort Schedule:
1. Press the PROGRAM button. The word PROGRAMMING
appears on the display and the words SET TIME flash on
the display. MoTuWeThFr or SaSu and the morning period
icons will appear on the display. The current mode (HEAT
or COOL) will also show. Use the DAY button to select
weekdays and the PROGRAM button to select MORNING.
2. Press the UP or DOWN button to set the start time for
MORNING ( 1) value in Table 1).
3. Press the TIME/TEMP button until COOL is on and SET
TEMP flashes on the display.
4. Press the UP or DOWN button to select the cooling temper-
ature setpoint ( 2) value in Table 1).
5. Press the TIME/TEMP button until HEAT is on and SET
TEMP flashes on the display.
6. Press the UP or DOWN buttons to select the heating tem-
perature setpoint ( 3) value in Table 1).
7. Press the PROGRAM button to advance to the next time
period. Enter time and temperature settings ( 4) through 12
in Table 1) for the periods DAY, EVE, and NIGHT by fol-
lowing items 2--6 above.
8. Press the DAY button to change between weekday and
weekend programming. To set the weekend schedule, repeat
items 2 through 7, entering values in 13) through 24) in
Table 1.
9. Press END/HOLD to exit the programming mode.
Modifying Your Weekly Comfort Schedule
If you choose to change any of your weekly schedule, press
PROGRAM at any time. You will enter the programming schedule
at the present day, present mode, but always in the morning period.
You are ready to set the new starting time for the morning period.
One press of the TIME/TEMP button and you are ready to set the
new morning temperature. To set values for other periods, use the
PROGRAM button. To set values for other days, use the DAY
button. Press HOLD/END and you are finished.
Overriding Your Comfort Schedule
There are two ways to override your comfort schedule.
Method 1 — Manual Operation
By pressing the HOLD/END button to turn on the HOLD icon, the
thermostat will maintain the current temperature settings and
ignore the comfort schedule for an indefinite period of time. The
word HOLD will appear in the display. Press the HOLD/END
button a second time and the thermostat will return the temperature
settings to the programmed comfort schedule. Pressing
HOLD/END will not alter your programmed comfort schedule.
Method 2 — Temporary Override
At the first press of the UP or DOWN button, the current
temperature setting will appear on the display. Pressing the UP or
DOWN button again will temporarily change the setpoint as
needed. At the next programmed time, the programmed comfort
schedule will resume.
CHANGING BATTERIES
In some situations, two AA batteries are the power source for the
thermostat. If batteries are used with your equipment then they
should last about one year. As the batteries lose their power a
battery icon appears on the display. As the batteries get weaker, the
icon goes down to one black bar and then none. As the icon
becomes empty, you will begin to lose thermostat functions
because the batteries are losing their power. When the batteries are
completely dead, you won’t be able to use the thermostat.
When using batteries for power, we recommend you replace them
with two AA alkaline batteries. They are in a compartment under
the lid on top of the thermostat. You do not have to remove the
thermostat from the wall to replace the batteries. Simply open the
lid, lift out the batteries, and replace them like you would any other
battery operated device.
TROUBLESHOOTING
What if AUX HEAT appears on the display?
(Heat pump model only)
If auxiliary heat is on, you will see AUX HEAT indicator in the
display. When it is on this means the system has determined that
it’s too cold outside for your heat pump to heat the house without
help, so it’s getting help from the electric heaters. This happens
automatically.
NOTE: This indicator does not mean there is a problem with your
system.
What if E--Heat appears on the display?
If the heat pump is not working properly, you can manually turn
on the emergency heat for extra help in heating. You’ll know
there’s a problem if the house can’t seem to get warm when it’s
cold outside.
You want to avoid using emergency heat, though, because it’s the
most expensive option. And, of course, if you suspect a problem
with your heat pump, call your heating and cooling dealer
immediately.
Table 1 – Programming Table
ENERGY STAR
FACTORY DEFAULT VALUES
NEW COMFORT SCHEDULE
PERIOD TIME COOL HEAT
MoTuWe ThFr
TIME
COOL HEAT
SaSu
TIME
COOL HEAT
MORNING
6:00
A.M.
78_F
26_C
68_F
20_C
1) 2) 3) 13) 14) 15)
DAY
8:00
A.M.
85_F
29_C
60_F
16_C
4) 5) 6) 16) 17) 18)
EVE
5:00
P. M.
78_F
26_C
68_F
20_C
7) 8) 9) 19) 20) 21)
NIGHT
10:00
P. M.
82_F
28_C
60_F
16_C
10) 11) 12) 22) 23) 24)
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