INSTALLATION AND MAINTENANCE INSTRUCTIONS Series

3825 Ohio Avenue, St. Charles, Illinois 601741-800-SENSOR2, FAX: AND MAINTENANCE INSTRUCTIONSP hotoelectric Smoke DetectorModels: 2W-B, 2WT-B, 4W-B, 4WT-BSeriesBEFORE INSTALLINGP lease read thoroughly System Sensor s Applications Guide for System Smoke Detectors (SPAG91), which provides detailed information on detector spacing, placement, zoning, wiring, and special applications. This manual is available online at sNOTICE: This manual shall be left with the owner/user of this : This detector must be tested and maintained regularly following NFPA 72 requirements. At a minimum, cleaning should be performed DESCRIPTIONM odels 2W-B and 2WT-B are 2-wire photoelectric smoke detectors; models 4W-B and 4WT-B are 4-wire photoelectric smoke detectors. All models in-corporate a state-of-the-art optical sensing chamber and an advanced micro-processor. The microprocessor allows the detector to automatically adjust its sensitivity back to the factory setting when it becomes more sensitive due to contaminants settling in its chamber.

as identified by System Sensor’s compatibility chart. This chart contains the current list of detectors and UL Listed compatible control units. A copy of this list is available from System Sensor upon request. WIRING DIAGRAMS FIGURE 3A: WIRING DIAGRAM, 2W-B AND 2WT-B 2-WIRE ZONE 2-WIRE CONTROL PANEL + – 2W-B or 2WT-B (5) RA – (4) RA + (3 ...

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