Calibrate Sensor; Check Thermostat Operation; Final Checklist; Operation - Carrier 33CS Installation, Start-Up, And Operating Instructions Manual

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.
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 Fan buttons for 5 seconds. All
of the icons on the display screen will appear. Release the
buttons. Press the UP and DOWN ARROW buttons
simultaneously.
2. Press the UP and DOWN ARROW buttons simulta-
neously again. 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 to return to normal operation.
Check Thermostat Operation —
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 Fan button. The Fan Auto icon will appear on
the display screen. 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. Press the Mode button repeatedly until the Off icon ap-
pears. Press the Fan button until the display reads Fan On.
The fan should energize.
6. If heating, cooling, or fan operation do not energize,
check wiring and consult Table 4.
DAY
OF THE Occupied 1
WEEK
Start / Stop / Heat / Cool
Monday /
Tuesday /
Wednesday /
Thursday /
Friday /
Saturday /
Sunday /
NOTE: The cooling temperature set point must be higher than the heating temperature set point.
(The temperature difference may be changed in the advanced set up configuration.)
1101
To check thermo-
Table 3 — Daily Schedule Planner
Occupied 2
Start / Stop / Heat / Cool
/ / /
/ / /
/ / /
/ / /
/ / /
/ / /
/ / /

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 —
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 —
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.
→
Fan Operation —
continuously during occupied schedule (except when Mode is
switched to OFF). The fan will be off during unoccupied
schedule except during heating or cooling operation.
If Fan On is not selected, the fan will only operate during
heating or cooling operation.
NOTE: The Fan button will be ignored when security levels 2
or 3 are in effect.
Emergency Heat —
heat pump applications. To turn on emergency heat, press and
hold the Fan button. While holding the Fan button, press the
UP button for 2 seconds. An ''EH'' will be displayed. During
emergency heat, the fan will operate and the second stage of
heat will be energized (locking out the first stage compressor).
To exit emergency heat, press and hold the Fan button. While
holding the Fan button, press the UP button for 2 seconds. Dur-
ing emergency heat, only OFF and HEAT modes are available.
SCHEDULE
Occupied 3
Start / Stop / Heat / Cool
/ / /
/ / /
/ / /
/ / /
/ / /
/ / /
/ / /
6
When the thermostat mode is set
The second stage of heat or
If Fan On is selected, the fan will run
Emergency heat is available for
Unoccupied
Heat / Cool
/ /
/ /
/ /
/ /
/ /
/ /
/ /
/
/
/
/
/
/
/