Viconics VT7000 Series PIR Application Guide - Manual (Page 3)

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• Setpoints: The implemented occupied and unoccupied heating and cooling setpoints are under the same limitations
and restrictions. This means that:
- They use exactly the same range:
• Heating setpoints range are: 40 to 90 °F ( 4.5 to 32.0 °C )
• Cooling setpoints range are: 54 to 100 °F ( 12.0 to 37.5 °C )
- They are always limited by the applied minimum deadband configuration
- They will be limited by the Heat Maximum and Cool Minimum configuration parameters
All individual cooling setpoints and all individual heating setpoints can be set independently.
The installer must make sure that the difference between the unoccupied and occupied value can be recovered in a
timely fashion when movement is detected in the zone and large enough to warrant maximum energy savings.
Ex.:
• Unoccupied Events PIR Triggers: During unoccupied periods (scheduling models with unoccupied local schedule
or Unoccupied network command ), any movement detected by the PIR cover WILL trigger the internal Unoccupied
timer. If an occupied event is scheduled during the time the timer is active (scheduling models with occupied local
schedule or Occupied network command ) the local thermostat will operate in Occupied mode for the remaining
period as dictated by the timer.
Example if:
• The unoccupied timer is set to 1 hour
• A movement is detected at 6:15 AM
• An occupied event is scheduled at 7:00 AM
Then the local thermostat will be occupied from 7:00 AM to 7:15 AM
Occ Heat
= 72F
Occ Cool
= 75F
Unocc Heat
= 67F
Unocc Cool
= 80F
Room Temperature
Deadband
U noccupied Time
= 1 H ours
Occupied
U noccupîed
Tim e
Local scedule = Occupied
or
N etwork = Local Occupancy
Tim e
U noccupied Time E lapsed
= Unopccupied Mode Last Movem ent Detected
by PIR A ctivity
U noccupied Time E lapsed
= Unopccupied Mode Last Movem ent Detected
by PIR A ctivity
U noccupied Time
= 1 H ours