FlexStat (General) 11 Application Guide, Rev L
MAINMENU
ABOUT
ADVANCED
ALARM
DATE/TIME
SCHEDULE
SETPOINTS
SYSTEM
ADVANCED
APPLICATION
CBPROGRAMS
COMMUNICATION
DATE/TIME
DEVICE
INPUTS
LIMITS
Adding a Remote Temperature Sensor to an Input
For space temperature, the FlexStat uses an internal sensor tied to Ana-
log Input #1. However, a thermistor can also be connected to one of the
extra inputs (2 though 4 and 7 through 9) as a remote room temperature
sensor. (Not all applications may have extra inputs available—see the
Sample Application sections.)
In the BAC-12xxxx/13xxxx/14xxxx FlexStats with six external inputs, the
Input 7 sensor (AI7) can be congured for a remote space temperature
sensor through the menus. Then space temperature can be congured
for onboard (internal AI1), remote (AI7), averaging of the two, the low-
est reading, or the highest reading.
Sample Custom Applications
In BAC-1xxxx FlexStats with only three external inputs, to have the re-
mote sensor’s value shown on the FlexStat display instead of the internal
sensor’s, do the following in BACstage or TotalControl:
1. Congure the original space temperature AI1 object to “Out Of
Service.”
2. Congure the input for the added room temperature sensor input.
(Type III is the default thermistor type for AI2–AI4 and AI7–AI9.)
3. Add the following Control Basic program. (In this example, the ap-
plication has input #2 open—use another input instead as needed.)
AI1 = AI2
4. Restart the FlexStat.
APPLICATION
DEGREESSCALE:°F
APP:FANCOIL
OPT:4-PIPE
ADDITIONALSETUP
ADDITIONALSETUP
DAMPER
FAN
HUMIDITY
MOTIONSENSOR
OPTIMUMSTART
SENSORS
STAGING
SENSORSETUP
IN2:NOTUSED
IN9:NOTUSED
SPACETEMP:
--IN1ISONBOARD
--IN7ISREMOTE
REMOTE
To use a temperature sensor connected to another controller, see Using
Sensors Connected to Other Controllers on page 15 and use additional
code to map the remote sensor’s present value to AI2 (or other appropri-
ate input).
It may take a minute before the remote temperature starts displaying
correctly. To calibrate the sensor, see Calibrating a (Temperature) Sensor
on page 12 and use the appropriate input.
NOTE: The Home screen can display temperatures from –99 to
999 (with rmware version R1.3.0.8 or later). Temperatures
between –9.9 and 99.9 degrees can be (if enabled in the User
Interface menu) displayed with tenths of a degree.