Carrier ZS Pro-F - External Scheduling; Setting Setpoint Adjust Limit from an External Source

Programming specific applications
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Applications Guide All rights reserved
27
External Scheduling
The BACnet Time Clock microblock has 2 optional binary inputs that allow you to use an external schedule instead
of the built-in scheduling of the i-Vu® system. This method is used with the BSVI to schedule based on sensed
occupancy.
Check
Allow for External Scheduling
on the microblock's
Optional
tab to enable the
ext
and
cmd
inputs.
The
ext
input tells the Schedule Microblock to use the external "commanded to" input instead of the internal
schedule. When the top BV is on, the
cmd
input determines the schedule status and the sensor's green occupied
LED. See example below.
NOTE
The override and force unoccupied features of the ZS sensors will still work as normal when the Time Clock
microblock uses external schedules.
Setting Setpoint Adjust Limit from an external source
The BACnet Setpoint microblock has an optional analog input called
Setpoint Adjust Limit (-/+)
that takes over the
role of the built-in parameter of the same name found on the microblock's
Rnet
tab in the Property Editor. Check
Setpoint Adjust Limit (-/+)
on the
Optional
tab to expose the
SPADJ
input. When this input is activated, the built-in
parameter no longer works. For example, if the input value is 3, the user can adjust the zone setpoint up or down
3 degrees from the base. The adjustment applies to the cooling and heating setpoints.