Schedule Number; Unoccupied Override; Optimal Start; Sensors - Carrier 33CS Installation, Service, And Troubleshooting Instructions

Start Time — When the select button is pressed from the first
option screen, the hours number will flash. The hours are mod-
ified through the left set point buttons. The AM/PM modifier
will automatically switch when scrolling through the times. To
change the minutes, press the select button again. The minutes
numbers will flash. Use the left set point buttons to modify the
minutes. Press select again to save the current time and return
to the options screen, or press escape to exit without saving
changes.
Stop Time — When the select button is pressed from the sec-
ond option screen, the hours number will flash. The hours are
modified through the left set point buttons. The AM/PM modi-
fier will automatically switch when scrolling through the times.
To change the minutes, press the select button again. The min-
utes numbers will flash. Use the left set point buttons to modify
the minutes. Press select again to save the current time and re-
turn to the options screen, or press escape to exit without sav-
ing changes.
Active Days — When the select button is pressed from the
third option screen, the active days will be shown and the first
day, M (Monday) will be blinking. Use the left set point but-
tons to turn the day ON or OFF. Use the select button to scroll
through the possible active days. The programmable days are:
M (Monday), T (Tuesday), W (Wednesday), TH (Thursday), F
(Friday), SA (Saturday), SU (Sunday), and H (Holiday).
Schedule Number —
to 0, the TEMP system thermostat will always be in occupied
mode. If Schedule Number option is set to 1-64, the TEMP
system thermostat will follow the unoccupied/occupied pro-
grams stored in memory. If Schedule Number option is set to
65-99, the TEMP system thermostat will follow the unoccu-
pied/occupied programs specified in the global schedule locat-
ed elsewhere on the network, unless the Broadcast Global
Schedules option is ON. In this case, the TEMP system ther-
mostat will be the network schedule broadcaster. The TEMP
system thermostat will broadcast and follow the schedule
stored in its memory. If a global schedule is configured and
there is not a device broadcasting a global schedule, then the
TEMP system thermostat will run in unoccupied mode.
To configure the Schedule Number option, configure cate-
gory 2, option 9. Use the left set point buttons to toggle the op-
tion until the correct number is shown. The range of acceptable
values is 0 to 99. The default value is 0.
Unoccupied Override —
rarily overrides the unoccupied mode at the TEMP system
thermostat, allowing the zone to maintain occupied set points.
To activate unoccupied override, press the lower cooling or up-
per heating set point button. The unoccupied display will be re-
placed with the normal display. Once initiated, unoccupied
override remains in effect until the end of the Unoccupied
Override Time Limit, or the start of the occupied mode.
INITIATING UNOCCUPIED
REMOTE ROOM SENSOR — A timed override can also be
initiated from a remote room sensor using a momentary push-
button switch. The switch must have gold plated contacts and
be wired in series with the negative leg of the remote room
sensor. See Fig. 8. When the button is held in between 1 and
5 seconds, the controller schedule will enter the Occupied
mode. Remote override cannot be applied to a conroller that
uses multiple remote sensors or the on-board space sensor.
To disable unoccupied override, configure the Unoccupied
Override Time Limit to 0 hours.
UNOCCUPIED OVERRIDE TIME LIMIT — The Override
Time Limit establishes the amount of time the TEMP system
thermostat operates in the occupied mode when unoccupied
override is activated. To set the option, configure category 2,
option 10. The number of hours will be displayed. Press the
upper set point buttons to raise the time limit. Press the lower
If Schedule Number option is set
Unoccupied Override tempo-
OVERRIDE FROM
CUT BACK AND
TAPE DOWN SHIELD
REMOTE ROOM
SENSOR
Fig. 8 — Wiring Diagram for Remote
set point buttons to lower the time limit. The range is 0 to
4 hours in 1-hour increments. To disable unoccupied override,
configure the time limit to 0 hours. The default value is 1 hour.
Optimal Start —
tem thermostat will track the time it takes to bring the system
out of unoccupied mode and into occupied mode. The TEMP
system thermostat will store the recovery rate for heating and
cooling separately. Optimal Start will energize heating or cool-
ing before the end of the unoccupied mode, so the system will
be within occupied mode set points when the occupied time pe-
riod begins.
When the Optimal Start Time Limit option is configured to
any value besides zero, the TEMP system thermostat will cal-
culate the number of minutes it must subtract from the start of
the occupied period to recover the system before the occupied
period begins. The range is from 0 to 4 hours. This only limits
the time before the occupied period the optimal start will acti-
vate. A zero disables the optimal start function.
When the Optimal Start Time Limit option is configured to
zero, the TEMP system thermostat will not use Optimal Start.
OPTIMAL START TIME LIMIT — The Optimal Start Time
Limit setting is the maximum amount of time the TEMP sys-
tem thermostat will start the system before the occupied period
begins when Optimal Start is enabled.
To configure the Optimal Start Time Limit option, set cate-
gory 12, option 1. Use the left set point buttons to increase or
decrease the display. The range of allowable values is 0 to 4
hours. The default value is 4.
The TEMP system thermostat utilizes information from the
following sensors to control the associated TEMP system:
A
• zone temperature
• duct (supply air) temperature
• DX coil temperature
• outside-air temperature
• relative humidity
• fan/filter status
• IAQ status switch
When necessary, sensor calibration can be performed at the
TEMP system thermostat with the appropriate tools.
Zone Temperature Sensor —
thermostat measures zone temperature through a solid-state
temperature sensor located on the printed circuit board. See
Fig. 9. The sensor measures temperature with a range of 30 to
1
180 F with / degree resolution.
10
ZONE TEMPERATURE SENSOR CALIBRATION — To
calibrate the zone temperature sensor, configure category 5,
12
RED +
RS +
RS -
NORMALLY CLOSED-
MOMENTARY PUSHBUTTON
SWITCH

Unoccupied Override

During initial operation, the TEMP sys-

SENSORS

The TEMP system
SHIELD
CONNECTED TO
EARTH/CHASSIS
GROUND
+
- SBO
G Y
CONTROLLER
CONNECTION
BOARD