Specifications

ManualsBrandsCarrier ManualsConsumer electronicsCARRIER COMFORT SYSTEM 33CS

Start Time — When the select button is pressed from the

ﬁrst option screen, the hours number will ﬂash. The hours

are modiﬁed 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 but-

tons 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

second option screen, the hours number will ﬂash. The hours

are modiﬁed 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 but-

tons 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.

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

buttons 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 — If Schedule Number option is set

to0,the monitor thermostat will always be in Occupied mode.

If Schedule Number option is set to 1-64, the monitor ther-

mostat will follow the unoccupied/occupied programs stored

in memory. If Schedule Number option is set to 65-99, the

monitor thermostat will follow the unoccupied/occupied glo-

bal schedule broadcast from another device on the network,

unless the Broadcast Global Schedules option is ON. In this

case, the monitor will be the network schedule broadcaster.

The monitor thermostat will broadcast and follow the sched-

ule stored in its memory. If a global schedule is conﬁgured

and there is not a device broadcasting a global schedule, then

the monitor thermostat will run in Unoccupied mode.

To conﬁgure the Schedule Number option, conﬁgure cat-

egory 2, option 9. Use the left set point buttons to toggle the

option until the correct number is shown. The range of ac-

ceptable values is 0 to 99. The default value is 0.

Manual Unoccupied Override — Unoccupied Over-

ride temporarily overrides the Unoccupied mode at the moni-

tor thermostat, allowing the zone to maintain occupied set

points. To activate unoccupied override, press the lower cool-

ing or upper heating set point button. The unoccupied dis-

play will be replaced 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 Occu-

pied mode. Once the system is in unoccupied override, it

can only be cancelled through network software.

To disable unoccupied override, conﬁgure the Unoccu-

pied Override Time Limit to 0 hours.

NOTE: The unoccupied override will not work if the moni-

tor thermostat is following a global schedule, the monitor

thermostat must have its own schedule.

UNOCCUPIED OVERRIDE TIME LIMIT — The Over-

ride Time Limit establishes the amount of time the monitor

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

set point buttons to lower the time limit. The range is 0 to

4 hours in 1 hour increments. To disable unoccupied over-

ride, conﬁgure the time limit to 0 hours. The default value

is 1 hour.

Remote Unoccupied Override — The remote un-

occupied override operates the same way the manual unoc-

cupied override operates, except the remote unoccupied override

is initiated through a network user interface. The user con-

ﬁgures the timed override hours to 1, 2, 3, or 4 hours using

the Conﬁgure 1 Table. The override goes into effect once the

hour setting is downloaded and continues until the override

time has diminished.

Optimal Start — Optimal Start is a feature which per-

mits the system to start the HVAC equipment prior to oc-

cupancy in order to obtain the occupied set point at the start

of the occupied time period.

During initial operation, the monitor thermostat will track

the time it takes to bring the system out of Unoccupied mode

and into Occupied mode. The monitor thermostat will store

the recovery rate for heating and cooling separately. Opti-

mal Start will energize heating or cooling up to 4 hours be-

fore the end of the Unoccupied mode, so the system will be

within Occupied mode set points when the occupied time

period begins.

When the Optimal Start Time Limit option is conﬁgured

to any value besides zero, the monitor thermostat will cal-

culate the number of minutes it must subtract from the start

of the occupied period to recover the system before the oc-

cupied period begins. The range is from 0 to 4 hours. This

only limits the time before the occupied period the optimal

start will activate. A zero disables the optimal start function.

When the Optimal Start Time Limit option is conﬁgured

to zero, the monitor thermostat will not use Optimal Start.

NOTE: When this function is disabled, all previous trend

information is deleted.

OPTIMAL START TIME LIMIT — The Optimal Start Time

Limit setting is the maximum amount of time the monitor

thermostat will start the system before the occupied period

begins when Optimal Start is not set to zero.

To conﬁgure the Optimal Start Time Limit option, set

category 12, option 1. Use the left set point buttons to in-

crease or decrease the display. The range of allowable val-

ues is 0 to 4. The default value is 4.

SENSORS

The monitor thermostat utilizes information from the fol-

lowing sensors to operate a zone damper and control the as-

sociated VVT system:

• zone temperature

• remote room temperature

• supply air temperature

• zone duct temperature

• DX coil temperature

• outside air temperature

• indoor relative humidity or ﬁlter status switch

• IAQ status switch (monitor-only mode with relay pack)

When necessary, sensor calibration can be performed at

the monitor thermostat with the appropriate tools.