Install Instructions
Table Of Contents
- Contents
- Section 1: About the controllers
- Section 2: Installing the controllers
- Section 3: Changing the room setpoint
- Section 4: Configuring the controllers
- Section 5: Balancing airflow
- Section 6: Application drawings
- Section 7: Sequences of operation
- Section 8: System integration and networking
- Appendix A: K-factors
- Index
l Occupied on page 53
l Unoccupied
l Standby
Occupancy can also be commanded by another BACnet device or an operator workstation
connected the building automation network. See the topic System integration and networking
on page 63 for details.
Automatic occupancy
If Automatic Occupancy is enabled, the controller will automatically toggle between
Unoccupied, Occupied, and Standby based on the presence of primary airflow and motion in
the zone.
The default for Automatic Occupancy is Disabled. See the topic Advanced options on page
35 to change Automatic Occupancy.
Occupied
For controllers without a connected motion sensor, the controller changes to Occupied upon
the detection of primary airflow.
Controllers with a connected motion sensor change to Occupied upon the detection of
primary airflow and motion in the space. The unit will remain in the OCCUPIED state as long
as periodic motion is detected and primary airflow continues. If motion stops, the controller
changes to STANDBY.
Unoccupied
The controller Occupancy mode changes to UNOCCUPIED when it detects a loss of
primary airflow. While in the UNOCCUPIED state, the controller will fully open the damper in
an attempt to reach the maximum airflow setpoint.
Loss of primary airflow is defined as less than 25% of the requested flow for at least 5
minutes. The Occupancy mode changes to Occupied or Standby once the actual airflow is at
least 30% of the requested flow.
Standby
In units with a connected motion sensor, the controller starts in STANDBY and changes to
OCCUPIED after detecting motion in the space. Motion in the space is defined as two
movements detected within 5 minutes. The controller will change back to STANDBY after a
lack a lack of motion for the period specified by the variable Standby Time.
Standby mode is not valid for controllers without a motion sensor, unless commanded by a
building management system.
Space setpoints
There are four temperature setpoints each for heating and cooling for a total of eight
setpoints.
SimplyVAV Section 7: Sequences of operation
Revision G 53