2
2. Press the UP or DOWN b utton to set the start time for
MORNING ( 1) value in Table 1).
3. Press the TIME/TEMP button untilCOOL is on and SET
TEMP flashes on the display.
4. Press the UP or DOWN button to select the cooling
temperaturesetpoint( 2) value in Table1).
5. Press the TIME/TEMPbutton until HEAT is on and SET
TEMP flashes on the display.
6. Press the UP or DOWN buttons to select the heating
temperaturesetpoint( 3) value in Table1).
7. Press thePROGRAM button to advance to the next time
period.Enter time and temperaturesettings ( 4) through 12
in Table 1) for the periodsDAY, EVE, and NIGHT by
followingitems 2--6above.
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/HOLDto exit the programmingmode.

ModifyingYour WeeklyComfort Schedule

If you choose to change any of your weekly schedule, press
PROGRAMat any time. Youwill enter the programmingschedule
atthe present day,present mode, but always inthe morning period.
Youare ready to set the new startingtime for the morning period.
Onepress of the TIME/TEMP button and you are readyto set the
new morningtemperature. To setvalues for other periods, use the
PROGRAM button. To set values for other days,use the DAY
button. Press HOLD/END and you arefinished.

Overriding Your Comfort Schedule

Thereare two ways to overrideyour comfortschedule.

Method 1 — Manual Operation

Bypressing the HOLD/END buttonto turn on the HOLD icon,the
thermostat will maintain the current temperature setting s and
ignore the comfortschedule 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/ENDwill not alter your programmedcomfort schedule.

Method2 — Temporary Override

At the first press of the UP or DOWN button, the current
temperature setting will appear on th e display. Pressing the UP or
DOWN button again will temp orarily change the setpoint as
needed. At thenext programmed time, the programmed comfort
schedulewill resume.
CHANGING BATTERIES
In some situations,two AA batteries arethe power source for the
thermostat. If batteries are used with your equipmentthen they
should last about one year. As the batteries lose their power a
batteryicon appearson 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
completelydead, you won’t be ableto use the thermostat.
When using batteries for power, we recommend you replace them
with two AA alkalinebatteries. They are ina compartment under
the lid on top of the thermostat. You do not have to remove the
thermostat from the wall to replace th e batteries. Simply open the
lid,lift out the batteries,and replacethem like you would any other
battery operated device.
TROUBLESHOOTING

What if AUX HEATapp earson 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 systemhas determined that
it’stoo cold outside for yourheat pump to heat the housewithout
help, so it’s getting help from the electric heaters. This happens
automatically.
NOTE: This indicator does not mean thereis a problem with your
system.

What if E--Heatappears on the display?

If theheat pump is not working properly, you can manuallyturn
on the emergencyheat for extra help in heating. You’llknow
there’sa problem if the house can’t seem to getwarm when it’s
coldoutside.
Youwant to avoid using emergencyheat, though, because it’s the
most expensiveoption. And, of course, if you suspect a problem
with your heat pump, call your heating and cooling dealer
immediately.
Table1 – ProgrammingTable
ENERGYSTAR
FACTORYDEFAULTVALUES NEW COMFORT SCHEDULE
PERIOD TIME COOL HEAT MoTuWeThFr
TIME COOL HEAT SaSu
TIME COOL HEAT
MORNING 6:00
A.M.
78_F
26_C
68_F
20_C1) 2) 3) 13) 14) 15)
DAY 8:00
A.M.
85_F
29_C
60_F
16_C4) 5) 6) 16) 17) 18)
EVE 5:00
P.M .
78_F
26_C
68_F
20_C7) 8) 9) 19) 20) 21)
NIGHT 10:00
P.M .
82_F
28_C
60_F
16_C10) 11) 12) 22) 23) 24)
T1--PAC / T1-- PHP