Optimum Start Setup; Sensor Setup; Staging Setup; Valve Setup - KMC Controls FlexStat BACnet Operation Manual

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
To enable/disable this feature, press:
1. Enter to select.
2. Right/Left to move among value fields.
3. Up/Down to change On/Off.
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.

Sensor Setup

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 remote space temperature sensor. Then space
temperature can be configured for onboard (internal
AI1), remote (AI7), averaging of the two, the lowest
reading, or the highest reading. To calibrate and
change the thermistor type, see (Advanced) Inputs on
page 16.
The Input 2 sensor (AI2) can be configured for
discharge air temperature (DAT and Type III
FlexStat
DISABLE
22.
thermistor is the default), fan status (dry contact), or
unused.
• If set for discharge air temperature, the sensor
can be calibrated and changed from the default
Type III thermistor to a Type II. See (Advanced)
Inputs on page 16.
• If set for discharge air temperature, a trend log is
automatically created and monitors the discharge
air temperature, but it has no effect on operation.
• If 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 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

Staging Setup

STG DELAY (MINS):

Valve Setup

CLG (0–100%):
HTG (0–100%): 0–10V
9
8.
STAGING
3
VALVE SETUP
0–10V
Operation Guide, Rev. L
21.
12.