Crestron® occupancy sensors and daylight sensors offer a powerful, cost-saving solution for reducing energy consumption and enhancing system functionality. As part of a complete Crestron system, they can be used to enable automation of lighting, shading, HVAC, and AV equipment in a conference room, classroom, office, hallway, or other space. Using Crestron sensors, room lighting can automatically turn on when the room is occupied, turn off when it is vacant, and dim to a lower level when there is sufficient natural daylight from windows and skylights. Sensors can also be used to enhance the capabilities of a room scheduling, asset management, or energy monitoring solution through integration with the Crestron Fusion® Enterprise Management service.
The GLS-OIRLCL-C-CN serves dual functions as a passive infrared occupancy sensor and closed-loop photocell daylight sensor (photosensor). It can also operate in vacancy-only mode, and is designed to cover an area up to 450 square feet or 42 square meters. Miniaturized construction affords a nearly hidden appearance when installed in a drywall or drop-tile ceiling. It communicates with a Crestron control system via the Cresnet® network. Setup and configuration is accomplished using Crestron Toolbox software or the optional IR remote (model GLS-REMOTE-ODT/OIR, sold separately).
Passive Infrared Occupancy Sensing
Passive infrared (PIR) technology employs a highly sensitive specialized lens that divides the field-of-view into 64 detection zones. The sensor detects motion when a warm body passes between zones, achieving dependable motion detection with superior immunity to false triggering from vibrations, inanimate objects, or movement in an adjacent corridor. The detection sensitivity can be set to one of three levels for optimum performance. Timeout can be set to one of six settings ranging from 30 seconds to 30 minutes, preventing the sensor from turning off lights or reporting vacancy during moments when the room is occupied but no one is moving. In addition, a “walk-through” mode (Short Timeout) can be enabled to temporarily override the Timeout setting on occasions when the room is only occupied briefly for 90 seconds or less.
Vacancy Only Mode with Grace Occupancy
The GLS-OIRLCL-C-CN can be configured to sense vacancy only. In this mode, lighting and other equipment must be turned on manually but shuts off automatically after the room is vacated. The “grace occupancy” feature ensures that if the lights turn off while someone is in the room, they can be turned back on by simply waving a hand within a 15 second grace period.
Its built-in photocell enables the GLS-OIRLCL-C-CN to function as an closed-loop photosensor as part of a complete daylight harvesting solution. By monitoring the ambient light level in the room, electrical lighting can be dimmed automatically when sufficient natural daylight is available. Daylight harvesting enables organizations to improve energy efficiency by taking advantage of natural sunlight from windows and skylights while maintaining consistent lighting levels throughout the day for a more comfortable workspace.
Room Usage Monitoring
Through integration with the Crestron Fusion Enterprise Management service, occupancy sensors can be leveraged to log room usage based on occupancy, and to maximize efficiency for room scheduling by reporting if a room is occupied or vacant. In the event no one has shown up for a scheduled meeting, the meeting can be cancelled automatically, making the room available to others.
The GLS-OIRLCL-C-CN interfaces with a Crestron control system via Cresnet. Cresnet is a simple 4-wire network bus that provides the communications backbone for a system of Crestron sensors, lighting dimmers and switches, motorized shades, thermostats, keypads, and other devices. The GLS-OIRLCL-C-CN is also powered by 24 Volts DC from the Cresnet network.
Ceiling Flush Mount Installation
The GLS-OIRLCL-C-CN installs easily in a typical drywall or drop-tile ceiling. Simply drill a one-inch (25 mm) diameter hole and insert the sensor. Integrated compression clips hold the sensor in place. Once installed, it achieves a very discreet and flush appearance against a white ceiling.
Note 1: The motion detection pattern is rectangular. The sensor should be positioned and oriented accordingly to achieve the desired performance within the space.
Note 2: Some functions described in this spec sheet may require custom commissioning of the control system by an authorized Crestron system programmer.