Data Sheet for Product

Page 6 of 13 Document No. 588-023
Bypass Mode
If enabled (through StatSwitchEn) and the Bypass button on the Predator room sensor is pressed,
the controller will be placed in the Bypass Mode for the amount of time specified by the controller’s
configuration parameters (default 60 min. – see Table 2). If the button is subsequently pressed
again prior to the expiration of the bypass time, the timer will reset to the initial value and resume
counting down.
Priorities of Occupancy Control
Occupancy overrides are prioritized as follows (listed from highest to lowest):
• Wall Switch Input – Typically a physically operated switch used by room occupants.
• Operator Command – A valid occupied command sent from system operator.
• Bypass Button – Button on TALON room sensor, also utilized by room occupants.
• Occupancy Sensor – Locally connected or signal via the network.
• Occupancy Schedule – Sent from network.
Special Features
Room Temperature Sensor Sharing
The Predator Room Temperature Sensor may share its value with other controllers on the LonTalk
network via a network binding. This is most commonly done when multiple terminal units serve a
room or area.
Duct Temperature Sensor
An optional duct temperature sensor may be connected to the Predator controller to monitor the
source temperature. This can be used to detect transitions from normal operation to dual cold/dual
hot operation. This is also useful for functions such as morning warm-up, when you want to be sure
warm air is being provided to the box, or as an aid in troubleshooting space comfort problems.
Wall Switch
An optional maintained contact wall switch may be used to control the Occupancy Mode of a room.
Rooms with variable occupancy (conference rooms, etc.) can use this device to control occupancy
and the lights with one switch.
Occupancy Sensor
Another useful option is to utilize an occupancy sensor to control the Occupancy Mode of the
Predator controller. The function of this device would be similar to the wall switch above, but an
occupant entering the room would not perform any manual action to put the room into Occupied
Mode. If the schedule is in the Occupied Mode and the occupancy sensor does not detect people in
the room, the room will go into the Standby Mode enabling energy savings while maintaining
occupant comfort.
Lighting Control Relay
The Predator controller can selectively operate with maintained contacts or pulsed contacts to
switch lighting control relays. This is useful in those instances where lighting control is desired, but
a lighting control panel with a LonTalk interface is either not present or not feasible. Lighting is on in
Occupied and Bypass Modes and is off in Unoccupied and Standby Modes.
Analog Damper Actuator
The standard application is setup to use a Siemens GDE or similar three-point floating actuator for
air volume control. Alternatively, A Siemens Open Air
TM
or similar damper actuator could be utilized
if 0 to 10 Vdc modulating control is desired.