Viconics VT7000 Series Application Guide - Manual (Page 10)

10
• 5) VT7300 Stand-alone fan coil application using 3 levels of occupancy with dual PIR sensors
Set-up and Configuration
Thermostat used VT73x0X5000 ( commercial models )
PIR used BI1 configured for remote PIR sensor and
COV-PIR-FCU-C-5000 accessory cover
BI2 Configuration None, no function
Stand-by timer value 2.0 hours
Unoccupied timer value 6.0 hours
Network interface used None, stand-alone
Sequence of operation:
At initial power-up, when the thermostat 24 Vac power supply is applied; the initial occupancy of the zone will be stand-by
mode if the PIR devices do not detect any movements.
As soon as any of the PIR device detect a movement or motion, the occupancy status switches to occupied and the occupied
setpoints are used.
Anytime local motion is detected by one of the PIR devices, the elapsed stand-by timer value will be reset. If either PIR
devices in the zone detect no motion for the entire stand-by timer duration, then the room switches to stand-by mode and the
stand-by setpoints are used.
While in stand-by mode, if no motion is detected in the zone by either PIR devices for the entire unoccupied timer duration,
then the room switches to unoccupied mode and the unoccupied setpoints are used.
At anytime, if one of the PIR device detects a local movement or motion, the occupancy status switches to occupied and the
occupied setpoints are used.
• 6) VT7300 Stand-alone fan coil application using 2 levels of occupancy with dual PIR sensors
Set-up and Configuration
Thermostat used VT73x0X5000 ( commercial models )
PIR used BI1 configured for remote PIR sensor and
COV-PIR-FCU-C-5000 accessory cover
BI2 Configuration None, no function
Stand-by timer value 2.0 hours
Unoccupied timer value 0.0 hours
Network interface used None, stand-alone
Sequence of operation:
At initial power-up, when the thermostat 24 Vac power supply is applied; the initial occupancy of the zone will be stand-by
mode if the PIR devices do not detect any movements.
As soon as any of the PIR devices detect a movement or motion, the occupancy status switches to occupied and the
occupied setpoints are used.
Anytime local motion is detected by one of the PIR devices, the elapsed stand-by timer value will be reset. If either PIR
devices in the zone detect no motion 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 one of the PIR device detects a local movement or motion, the occupancy status switches to occupied and the
occupied setpoints are used.
The local zone never goes into unoccupied mode and the unoccupied setpoints are never used.
Remote PIR Sensor
Remote PIR Sensor
Unoccupied Time
= 6 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 Unoccupied Time Elapsed
= Unoccupied Mode Initial State at
Power-Up = Stand-By
Unoccupied Time
= 0 Hours
Stand-By Time
= 2 Hours
Occupied
Stand-By
Unoccupîed
Time
Stand-By Time Elapsed
= Stand-By Mode Last Movement Detected
by PIR Activity
Time
Stand-By Time Elapsed
= Stand-By Mode
Stand-By Time
= 2 Hours
Unoccupied Time
= 0 Hours
First Movement Detected
by a PIR Device
Initial State at
Power-Up = Stand-By