Description
The Gamewell ATD-L3R-IV Remote Test Heat Detector is a Velociti Series 3 intelligent addressable thermal detector that provides 135°F (57°C) fixed-temperature and rate-of-rise heat detection, and it supports both Velociti and CLIP protocol on the SLC loop for legacy installations. It uses rotary address switches for point ID location (01–159), dual LEDs for 360° visibility, and a built-in functional test switch activated by an external magnet.
Key Specifications of The Gamewell ATD-L3R-IV Remote Test Heat Detector
Type: Intelligent addressable thermal detector
Core Function(s): Monitors temperature and reports fixed-temperature and rate-of-rise heat alarm conditions to the fire alarm control panel
Loop/Protocol: Velociti SLC; Velociti and CLIP
Power: 15 to 32 VDC from SLC; 200 μA standby @ 24 VDC; 2 mA max alarm current @ 24 VDC (red LED enabled); 4.5 mA max current @ 24 VDC (amber LED enabled)
Indicators/UI: Dual LEDs (360° visibility); rotary address switches (01–159); functional test switch activated by an external magnet
Operating Range: -4°F to 100°F (-20°C to 38°C).





