Carrier DEBONAIR 33CS Installation, Start-Up, And Operating Instructions Manual Download Page 7

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Table 3 — Daily Schedule Planner

NOTE: The cooling temperature set point must be higher than the heating temperature set point. (The temperature difference may be changed in
the advanced setup configuration.)

If YES was selected, the schedule will be copied to the
next day. The schedule copy may be repeated until Sun-
day is reached. The Sunday schedule cannot be copied to
Monday.

12. After all the times and set points for each day have been

entered, press and hold the Mode and UP ARROW but-
tons to exit Programming mode.

NOTE: The thermostat will continue to follow the schedule
until a new one is entered.

If only one occupied schedule is selected, the Occupied 2

and 3 schedules are skipped. If the start time is set later in the
day than the stop time, the program will run from midnight of
that day to the stop time and then from the start time to mid-
night. If the same start and stop times are programmed for an
occupancy schedule, the thermostat will be in Occupied mode
for 24 hours. If one occupied period starts or stops within an-
other occupied period, the lower numbered schedule has priori-
ty. For example, if schedule Occupied 3 is running for 24 hours
and Occupied 2 schedule comes on from 1 to 3 PM, the set
points from Occupied 2 are in effect from 1 to 3 PM.
OVERRIDING THE SCHEDULE — The schedule can be
overridden by pressing the UP or DOWN ARROW buttons to
change the desired temperature. The thermostat will use the
new set point until the next scheduled time period starts.

Factory Defaults —

If the thermostat needs to be reset to

factory default settings, perform the following procedure:

1. Hold down the Mode button and press the DOWN

ARROW button simultaneously for 5 seconds. All of the
icons on the display screen will appear.

2. Press and hold the Override button until Fd (factory de-

faults) appears on the screen.

3. Press the Mode button twice to return to normal display.

NOTE: The occupied and unoccupied schedules will be reset.
The schedule will need to be re-entered.

Calibrate Sensor —

Every thermostat is factory cali-

brated. Under normal circumstances there will never be a need
to re-calibrate the thermostat. If re-calibration must be done,
perform the following procedure:

1. Hold down the Mode and DOWN ARROW buttons for

5 seconds. All of the icons on the display screen will
appear. Release the buttons.

2. Press the Mode button. The current temperature will be

displayed.

3. Use an accurate thermometer to measure room tempera-

ture. Press the UP or DOWN ARROW buttons until the
flashing number equals room temperature.

4. Press the Mode button again to return to normal

operation.

Check Thermostat Operation —

To check thermo-

stat operation, perform the following procedure:

1. Press the Mode button repeatedly until the Heat icon ap-

pears on the display. The thermostat is now in Heating
mode.

2. Press the UP ARROW button until the heating set point is

10 F (6 C) higher than the current room temperature.
Heating and fan should be energized.

3. Press the Mode button repeatedly until the Cool icon ap-

pears on the display. The thermostat is now in Cooling
mode.

4. Press the DOWN ARROW button until the cooling set

point is 10 F lower than the current room temperature.
Cooling and fan should be energized.

5. If heating, cooling, or fan operation do not energize,

check wiring and consult Table 4.

Final Checklist

1. Put away tools and instruments. Clean up debris and

packaging.

2. Review Owner’s Guide with occupant or owner.
3. Leave the manuals with owner.

OPERATION

The Mode button selects the operating mode of the thermo-

stat. If OFF is selected, the thermostat will not enter Heating or
Cooling mode. If HEAT is selected, the thermostat will only
enter Heating mode (if the room temperature is below the heat-
ing set point). If COOL is selected, the thermostat will only en-
ter Cooling mode (if the room temperature is above the cooling
set point). If AUTO is selected, the thermostat will enter Heat-
ing or Cooling mode based on the room temperature and the
heating and cooling set points. If PROGRAM ON is selected,
the stored schedule is enabled and the thermostat will follow
the Occupied and Unoccupied schedules stored in its memory.

Auto-Changeover —

When the thermostat mode is set

to AUTO, the thermostat will provide automatic changeover
from Heating to Cooling mode and Cooling to Heating mode
when required. The thermostat will automatically switch to
maintain the desired temperature setting. The thermostat does
not need to be manually changed from heating to cooling or
cooling to heating operation.

Two-Stage Operation —

The second stage of heat or

cool is turned on when the first stage has been on for a mini-
mum of 2 minutes and the temperature differential from the set
point is equal to or greater than the set point plus the deadband
plus 2 degrees.

Clock Backup —

In the event of a power loss, the ther-

mostat will keep time for a minimum of 48 hours without ex-
ternal power or batteries.

DAY

OF THE

WEEK

SCHEDULE

Occupied 1

Occupied 2

Occupied 3

Unoccupied

Start / Stop / Heat / Cool