E S L
P R O D U C T I N F O R M A T I O N B U L L E T I N
429 SERIES
Self-Diagnostic,
Two-Wire,
Photoelectric
Smoke Detectors
Model numbers: 429AT, 429C, 429CT, 429CRT and 429CST
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A N A C O F
California State Fire Marshal Approved
MEA (New York City)
•Intelligent, self-diagnostics
•Field replaceable optical chamber
•Low-profile design
•Plug-in terminal block
•Advanced false alarm immunity
The ESL 429 Series self-diagnostic, two-wire
smoke detectors continually monitor their own sensitivity and operational status, and provide a visual trouble indication if they drift out of sensitivity range or fail internal diagnostics. This meets NFPA 72 field sensitivity testing requirements without the need for external meters.
Additional diagnostic information is activated by applying a magnet near the detector's integral reed switch. This initiates a self-diagnostic routine and provides visual indication of sensitivity level, or if service is required.
The 429 Series is easily cleaned by simply replacing ESL's proprietary field-replaceable optical chamber. All models are designed to reduce false alarms from dust, insects, RFI and external light.
An integral combination rate-of-rise and fixed 135° F (57° C), 50-foot rated, heat sensor is available with all “T” model detectors (see selection guide). An integrated silicon heat sensor and a dedicated microprocessor are used to detect heat and perform the rate of rise calculations, for earlier heat detection.
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