Photoelectric Smoke Detectors

System Sensor’s i³™ Series photoelectric and photoelectric/thermal smoke detectors represent a significant advancement in conventionaldetection, incorporating three key features: installation ease, intelligence,and instant inspection.

Installation ease. The i³ Series redefines installation ease with its plug-in design. This allows an installer to pre-wire the bases included with the heads. Thelarge wire-entry port and in-lineterminals provideample room for neatly routing the wiring inside the base. The base accommodatesa variety of backbox mounting methods, as well as direct mounting with drywallanchors. To complete the installation, i³ Series heads plug into the base with asimple Stop-Drop ’N Lock™ action.

Intelligence. Intelligence. i³ Series detectors offer anumber of intelligent features to simplify testing and maintenance. Driftcompensa- tion and smoothing algorithms, to minimize nuisance alarms, arestandard in the i³ Series. When connected to the 2W-MOD loop test/maintenance module, an SFP-2402/-2404 panel,SFP-5UD/10UD, or RP-2001/2002 two-wire i³ detectors are capable of generatinga remote maintenance signal when they need cleaning. This signal is indicatedby LEDs located at the module and at the panel. To read the sensitivity of i³detectors, the SENS-RDR is a wireless device that displayssensitivity in terms of percent-per-foot obscuration.

Instant inspection. The i³ Series provides wide-angle red and green LED indicators forinstant inspection of detector condi- tion. The LEDs indicate: normal standby, out-of-sensitivity, alarm, or freeze trouble conditions.The “EZ Walk” loop test feature is available on two-wire i³ Series detectors when con- nectedto the 2W-MOD loop test/maintenance module. The “EZWalk” feature verifies the initiating loop wiring by providing LED statusindication at each detectorInstant inspection. The i³ Series provides wide-angle red and green LED indicators forinstant inspection of detector condi- tion. The LEDs indicate: normal standby, out-of-sensitivity, alarm, or freeze trouble conditions.The “EZ Walk” loop test feature is available on two-wire i³ Series detectors when con- nectedto the 2W-MOD loop test/maintenance module. The “EZWalk” feature verifies the initiating loop wiring by providing LED statusindication at each detector.

PHYSICAL SPECIFICATIONS

Operating Temperature Range: For models 2W-B and 4W-B:32°F to 120°F (0°C to 49°C); for thermal models 2WT-B and4WT-B: 32°F to 100°F (0°C to 37.8°C).

Operating Humidity Range: 0% – 95% RH, non-condensing.

Thermal Sensor: 135°F (57.2°C) fixed (models 2WT-B,4WT-B).

Freeze Trouble: 41°F (5°C) (models 2WT-B and 4WT-B).Sensitivity: 2.5%/foot (0.762%/meter) nominal.

Input Terminals: Utilize 14 to 22 AWG wire.

Dimensions (including base): 5.3" (134.62 mm) diameter, 2.0" inches (50.8 mm) high.

Weight: 6.3 oz. (178.6 grams).

Mounting Options: 3.5" (88.9 mm) octagonal backbox; 4" (101.6 mm) octagonal backbox; single-gang backbox; 4" (101.6 mm) square backbox with a plaster ring; or direct mount to ceiling.

ELECTRICAL SPECIFICATIONS

Operating Voltage: 12/24 V non-polarized nominal; 8.5 V minimum; 35 V maximum.

Maximum Alarm Current” For two-wire models: 130 mA lim- ited by control panel; For four-wire models: 20 mA @ 12 V, 23 mA @ 24 V.

Alarm Contact Ratings: For four-wire models: 0.5 A @ 30 VAC/VDC; not applicable for two-wire models.