Operating instructions

Programming and Operating Instructions
AT POWER UP
When power is first applied, AC or HP will appear for 5 seconds
to tell you it is an air conditioner (AC) or a heat pump (HP) model.
After this, the time display will flash to tell you the power has been
off. The day and time will show, within 10 minutes, when the
power went off. Pressing any button will stop the flashing.
A. Setting the current time:
1. Press the TIME/TEMP button. SET TIME flashes on the
display.
2. Press the Up or Down button until the correct time is
displayed.
3. To quickly advance to the proper time, press and hold the
UP or DOWN button.
4. When the correct time appears on the display, press the
HOLD/END button.
(Note: If you choose not to press the HOLD/END button,
the thermostat will automatically exit the time setting mode
after 10 seconds.)
B. Setting the current day:
1. Press the DAY button to advance to the correct day.
MANUAL OPERATION
A. To operate manually (without the programmed com-
fort schedule):
Press the HOLD/END button to make the HOLD icon appear.
Then follow the four steps below:
1. To Select the Mode:
Use the MODE button to move between the choices. OFF,
HEAT, COOL, or EMHT will appear on the display.
EMHT will only appear on heat pump models.
2. To Select the Fan Operation:
Use the FAN button to move between continuous fan
(indicated by the FAN ON icon) and auto fan operation.
3. To Read the Room Temperature:
The large display reads room temperature until a button is
pressed.
4. To Adjust the Set Point:
The first press of the UP or DOWN button does not change
the set point. It displays the current set point for a period of
5 seconds. Successive presses within this 5 seconds will
adjust the set point and restart the 5 seconds. During the 5
seconds, the SET TEMP icon will be flashing.
PROGRAMMED OPERATION
Introduction: The Standard Programmable Thermostat provides
four periods per day (MORNING, DAY, EVE, NIGHT) and two
schedules per week (MoTuWeThFr and SaSu). A separate time,
heat set point, and cool set point can be set for each period and
schedule. Before starting to actually program the thermostat, fill
out Table 1 with the values you wish to program. (The Energy
Star, US Department of Energy recommended time and tempera-
ture values are already programmed for you as a starting point and
are shown on the left side of the table.)
The first press of the PROGRAM button brings up the program-
ming mode and places you at the current day and period.
Successive presses move you between the four daily periods.
WHILE PROGRAMMING:
The TIME/TEMP button moves between selections of SET TIME,
SET TEMP and HEAT, and SET TEMP and COOL. These three
numbers are to be programmed for each of the periods MORN-
ING, DAY, EVE, and NIGHT.
The DAY button moves between the weekdays, (MoTuWeThFr)
and the weekend (SaSu) selections. A different schedule may be
set for the weekdays and the weekend.
You may exit programming at any time by pressing the
HOLD/END button.
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 present 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 (box 1 value).
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
temperature set point (box 2 value).
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
temperature set point (box 3 value).
7. Press the DAY button to advance to the next time period.
Enter time and temperature settings from boxes 4 through
12 for the periods DAY, EVE, and NIGHT by following
steps 2-6 above.
Fig. 1—Standard Programmable Thermostat
A99069
Homeowner’s Guide/
Installation Instructions
STANDARD PROGRAMMABLE THERMOSTAT
Cancels: II TSTAT-0-23 II TSTAT-0-28
7-99
TSTAT
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