Item # OSL, OSL Model Occupancy Sensors On Alan Manufacturing, Inc.

Unit of Measure

Specifications | Application | Features | Note

Operating Modes	N/A Automatic Occupied Vacant
Occupied Mode	N/A Sets air flow to the OCC dial setting to eliminate overheating and overcooling.
Vacant Mode	N/A Sets air flow to the VAC dial setting to reduce energy usage when a room or office is vacant.
Automatic Mode	N/A Detects when an office or room is occupied or vacant and adjusts air flow to the proper setting.
Occupancy Detection	N/A Photo detector monitors light level and detects when an office light is turned on or off. Not affected by increasing or decreasing sunlight levels.
Light Emitting Diode (LED) Color Indicator (When Room is Ocuppied)	N/A Red
Light Emitting Diode (LED) Color Indicator (When Room is Vacant)	N/A Green
Dampers	N/A VPD-XXX Variable Position
Housing	N/A Fits in Euro-style switch cover plate. Can be installed directly to wall or in a switch box.
Electrical	N/A Three terminals wired to Variable Position Damper (VPD).
Multiple Dampers	N/A One OSL can control up to 4 dampers.
Height	N/A 4.13 in
Width	N/A 1.40 in

N/A Automatically lowers air flow and saves energy when a conference room, office or other space is not occupied.

N/A

Automatically detects when lights are turned on and sets the air flow for best comfort
Automatically detects when lights are turned off and reduces the air flow to reduce energy consumption
Adjustments for setting the Occupied air flow level for best comfort and the Vacant level to save energy
Switch selects Automatic, Occupied or Vacant operation
Requires 3 wires from the VPD damper. All low voltage wiring allows installation directly on a wall or in a switch box
LED is red when occupied and green when vacant and air flow is automatically reduced to save energy

N/A Made in the USA.

Operating Modes