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PIR APPLICATION GUIDE FOR TB7200 AND TB7300 SERIES THERMOSTATS
9 63-4526—01
2. TB7300 networked fan coil application—2 levels of occupancy with occupancy sensor cover
Sequence of operation:
At initial power-up, when the thermostat 24 Vac power supply is applied; if there is no occupancy network command received by
the thermostat and if the PIR device does not detect any movement, the initial occupancy of the zone will be stand-by mode.
Occupied state network command
At any time, an occupied network command will always force the local zone to be in occupied mode and to use the occupied
setpoints.
Unoccupied state network command
At any time, an unoccupied network command will always force the local zone to be in unoccupied mode and to use the
unoccupied setpoints. If the thermostat local override function is not locked out by configuration, the local user may initiate a
temporary local override to occupied as dictated by the temporary occupancy time configuration parameter setting.
Local occupancy state network command
If previously in unoccupied mode when then the thermostat receives a local occupancy state network command, the local PIR
occupancy loop will now be enabled. If the PIR device does not then detect any movement, the occupancy of the zone will be
stand-by mode.
As soon as the PIR device detects a movement or motion while in the local occupancy state network command, the occupancy
status switches to occupied and the occupied setpoints are used.
Anytime the PIR device detects local motion, the elapsed stand-by timer value will be reset. If no motion is detected in the zone
for the entire stand-by timer duration, then the room switches to stand-by mode and the stand-by setpoints are used.
At anytime, if the PIR device detects a local movement or motion, the occupancy status switches to occupied and the occupied
setpoints are used.
While in the local occupancy state network command, the local zone never goes into unoccupied mode and the unoccupied
setpoints are never used
Set-up and Configuration
Thermostat used TB73x0X5014 (commercial models)
PIR used TB-PIR-FCU-C cover
BI2 Configuration None, no function
Stand-by timer value 2.0 hours
Unoccupied timer value 0.0 hours
Network interface used BACnet MS/TP or wireless
BACnet or Echelon Network
BACnet or wireless network
Unoccupied Time
= 0 Hours
Stand-By Time
= 2 Hours
First Movement Detected
by a PIR Device
Occupied
Stand-By
Unoccupîed
Time
Stand-By Time Elapsed
= Stand-By Mode
Network Command
= Local PIR Occupancy
Initial Network
Command = Unoccupied
PIR Movements Ignored
Network Command
= Occupied
PIR Movements Ignored
Network Command
= Unoccupied
PIR Movements Ignored