{"product_id":"gamewell-fci-atd-l3r-iv-thermal-sensor-ivory","title":"Gamewell-FCI ATD-L3R-IV Heat Detector","description":"\u003cp\u003eThe \u003cstrong\u003eGamewell-FCI ATD-L3R-IV\u003c\/strong\u003e is the ivory rate-of-rise variant of the Velociti Series 3 thermal detector. It combines a 135°F (57°C) fixed-temperature trigger with rate-of-rise detection (greater than 15°F per minute) and supports both Velociti and CLIP protocols, making it the right service part for legacy E3\/S3 installations that still carry CLIP detectors.\u003c\/p\u003e\u003cp\u003eEach detector occupies one address on a Gamewell-FCI loop and reports continuous temperature data back to the panel. Rotary decimal switches set addresses from 01 to 159. Dual bicolor LEDs provide 360 degree visibility (green on poll, red on alarm).\u003c\/p\u003e\u003ch2\u003eRate-of-rise versus fixed-only, when each is correct\u003c\/h2\u003e\u003cp\u003eFixed thermal (ATD-L3) reacts only when ambient temperature crosses 135°F. Rate-of-rise (this ATD-L3R-IV) reacts to either the 135°F threshold OR a temperature climb greater than 15°F per minute, whichever comes first. The faster trigger matters when a fire grows quickly, kitchens, mechanical spaces, equipment rooms. Where ambient swings naturally (parking decks in summer) prefer fixed-only to avoid false trips.\u003c\/p\u003e\u003ch2\u003eWhy ivory + dual-protocol, retrofit-grade\u003c\/h2\u003e\u003cp\u003eThe ivory finish exists primarily for retrofit color match on legacy installs. Velociti + CLIP dual-protocol support lets this detector drop onto an existing CLIP loop without requiring loop conversion. Specs are otherwise identical to the white ATD-L3R.\u003c\/p\u003e\u003ch2\u003eCompatible panels: E3 Series, S3 Series, GWF-7075\u003c\/h2\u003e\u003cp\u003eE3 Series and S3 Series panels handle both Velociti and CLIP, the ATD-L3R-IV fits either protocol mode. The GWF-7075 supports Velociti only, so the CLIP fallback never activates on that panel.\u003c\/p\u003e\u003ch2\u003eListings and approvals\u003c\/h2\u003e\u003cp\u003eUL Listed S2332 under UL 268. FM Approved 3023594. CSFM 7270-1703-0502. MEA FDNY 219-02-E Vol. VI. ISO 9001 certified manufacturing.\u003c\/p\u003e\u003ch2\u003eBase required, sold separately\u003c\/h2\u003e\u003cp\u003eThe detector head ships without a base. Ivory pairings: B501-IV (ivory 4-inch flangeless), B300-6-IV (ivory 6-inch flanged). Ivory bases match the head color, white bases also fit but break the ceiling-color match.\u003c\/p\u003e","brand":"Gamewell-FCI","offers":[{"title":"Default Title","offer_id":51562189324581,"sku":"ATD-L3R-IV","price":166.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7648\/4645\/files\/gamewell-fci-heat-detectors-default-title-gamewell-fci-atd-l3r-iv-thermal-heat-detector-32025135349984.jpg?v=1771297435","url":"https:\/\/fastalarmdistribution.com\/products\/gamewell-fci-atd-l3r-iv-thermal-sensor-ivory","provider":"Fast Alarm Distribution","version":"1.0","type":"link"}