The Gamewell-FCI ATD-L3H is an addressable high temperature heat detector designed for commercial and industrial fire alarm systems. It provides fixed temperature thermal detection at 190 degrees Fahrenheit 88 degrees Celsius, making it suitable for areas where higher normal ambient temperatures may make standard temperature heat detectors inappropriate.
Part of the Velociti Series 3 detector family, the ATD-L3H features addressable communication, rotary decimal addressing, dual LED status indicators, and a built in magnetic functional test switch. Its bright white, low profile housing provides a modern appearance for commercial life safety installations.
Product Functions
- Detects high temperature fire conditions
- Activates at 190 degrees Fahrenheit
- Reports alarm conditions to the fire alarm control panel
- Provides addressable point identification
- Continuously communicates detector status
- Provides visual status and alarm indication
- Supports rotary decimal addressing
- Supports magnetic functional testing
- Provides fixed temperature thermal detection
Electrical & System Information
The ATD-L3H operates from a 15 to 32 VDC signaling line circuit and communicates using the Gamewell-FCI Velociti protocol. Rotary decimal switches provide addressing from 01 through 159, allowing each detector to be individually identified by the fire alarm control system.
Dual LEDs provide 360 degree status visibility. The indicators flash during normal communication and illuminate during alarm conditions according to system operation. A built in functional test switch can be activated with an external magnet to simplify routine detector testing and maintenance.
Features
The ATD-L3H features 190 degree Fahrenheit fixed temperature detection, Velociti addressable communication, rotary decimal addressing, dual LED status indication with 360 degree visibility, magnetic functional testing, bright white low profile construction, plug in detector installation, low standby current, and dependable high temperature detection for commercial and industrial fire alarm systems.
Protection & Applications
Suitable for:
- Commercial Fire Alarm Systems
- High Temperature Areas
- Industrial Facilities
- Warehouses
- Mechanical Rooms
- Boiler Areas
- Manufacturing Plants
- Utility Areas
- Commercial Kitchens
- Government Buildings
- Institutional Facilities
- Indoor Thermal Fire Detection



