Optimum Start Setup; Sensor Setup - KMC Controls FlexStat series Operation Manual

reverting from Standby back to Occupied
mode (although it may still take some
time for the room to reach its normal
temperature). See (Advanced) CO2 Sensor
(and DCV) on page
NOTE: DCV is only available in models with the
built-in CO sensor.
2
Scheduled
On Time
Optimum
Start
Cooling Occupancy
Setpoint
Unoccupied
(*Available only on FlexStats with motion sensors)
The State field monitors whether motion has been
detected during the last scan of the motion sensor
input (BI6). Detected motion will show an "occu-
pied" state. This can be used during troubleshooting
to determine if motion is being detected.

Optimum Start Setup

OPTIMUM START
OPT START:
When Optimum Start is enabled, the FlexStat soon
"learns" the amount of time required to reach
the setpoint from the setback/setup temperature.
It will then adjust the actual start time needed
to reach the desired setpoint at the beginning
of the scheduled On times. (See the chart in the
(Advanced) Motion Sensor section.) It will also make
seasonal temperature adjustments if an outside air
temperature sensor is connected appropriately.
NOTE: For maximum efficiency, if Optimum
Start is enabled, set times in schedules for
when the room temperature should reach
the setpoint, not when heating/cooling
equipment should start (which would be
earlier). See Schedules on page
NOTE: For details of the energy-saving calculations
performed, see the Optimum Start section
in the relevant Sequence of Operation in the
FlexStat Application Guide.
FlexStat
11.
Scheduled
Off Time
Occupancy
Override*
Space
Standby* Temperature
Occupied Unoccupied
DISABLE
24.

Sensor Setup

IN 2:
DISCH AIR TEMP
IN 9: CO2
SPACE TEMP: REMOTE
-- IN 1 IS ONBOARD
-- IN 7 IS REMOTE
The Input 7 sensor (AI7) can be configured for a re-
mote space temperature sensor. Then space temper-
ature can be configured for onboard (internal AI1),
remote (AI7), averaging of the two, the lowest read-
ing, or the highest reading. To calibrate and change
the thermistor type, see (Advanced) Inputs on page
The Input 2 sensor (AI2) can be configured for dis-
charge air temperature (DAT and Type III thermistor
is the default), fan status (dry contact), or unused.
• If AI2 is set for discharge air temperature, a
trend log is automatically created and monitors
the discharge air temperature, but it has no effect
on operation. The sensor can be calibrated and
changed from the default Type III thermistor to a
Type II. See (Advanced) Inputs on page
• If AI2 is set for fan status and no closed contact is
detected when there is a call for fan operation, a
Fan Fail Alarm is created. See Alarms on page
• If AI2 is set for unused, built-in applications will
not use it, but the input would be available for
custom programming.
In BAC-12xxxx/13xxxx/14xxxx models, the Input 9
sensor (AI9) can be configured for an external KMC
SAE-10xx CO sensor. For more information, see
2
DCV (Demand Control Ventilation) Setup on page
See also Motion Sensor Setup on page
9
SENSOR SETUP
8.
Operation Guide, Rev. M
17.
17.
23.
12.