GE Security 449C Photo Electric Smoke Detectors

The 400 Series self-diagnostic, 2 and 4 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 400 Series is easily cleaned by simply replacing ESL's proprietary field-replaceable optical chamber (part 211). 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. Models with auxiliary relays are approved for releasing service. The very low profile 400 Series detectors are equipped with a hinged cover, a concealed tamper-resistant latch, and insect screens. Models 4X8 are listed for use in Canada.

The ESL 449/448 Series self-diagnostic, four-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 unique, patented technology 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.

This 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), allowing latching of the alarm for either smoke or heat. The 449CSRH includes an isolated alarm output for heat and activates an internal non-latching sounder (local alarm) for smoke, making it ideal for motel/hotel and dormitory rooms where smoking is permitted.

Features

• Intelligent, self-diagnostics
• Field-replaceable optical chamber
• Low-profile design
• Plug-in terminal block
• Advanced false alarm immunity

Specifications

• Alarm @ Relay Specifications: 6.0 A @ 28.0 V
• Color: White
• Current Comsumption w/ Alarm[Nominal]: 64.0 mA
• Field Wiring Size[Minimum]: 14.0 AWG
• Field Wiring Size[Maximum]: 24.0 AWG
• Heat Detection Specifications - Fixed[Nominal]: 135.0 °F
• Heat Detection Specifications - Rate of Rise: >105°F and Rate of Rise 15°F/min
• Maximum Ripple[Maximum]: 10.0 %
• Operating Humidity[Minimum]: 0.0 % RH
• Operating Humidity[Maximum]: 95.0 % RH
• Operating Temperature[Minimum]: 32.0 °F
• Operating Temperature[Maximum]: 120.0 °F
• Packaging Basis[Nominal]: 10.0 per carton
• Sensitivity - Photoelectric[Maximum]: 3.1 %
• Sounder Specifications[Nominal]: 8.5 db/ft

Architectural and Engineering Specifications

The ESL 449 Series low-profile, self-diagnostic, four-wire smoke detectors work on the light scattering principle. A pulsed infrared light-emitting diode serves as the light source, and a high-speed photodiode as the sensing element. When the amount of light reflected onto the photodiode reaches the sensitivity setting, the smoke sampling rate increases. Three (3) successive smoke sensings above the sensitivity setting are required to sound an alarm. This design has superior protection against false alarms caused by dust, insects, RF and ambient-light.

A confirmed alarm causes the normally flashing power indicator LED to light continuously and the alarm relay to operate. A trouble indication is automatically displayed by flashing the LED every second. This meets NFPA 72 field sensitivity testing requirements. An internal 85 dB horn (available in “S” models) emits a temporal 3 when the detector alarms and a steady tone when power polarity is reversed.

The proprietary optical sensing chamber is field replaceable, allowing quick and easy cleaning and maintenance. Models with auxiliary relays are approved for releasing service.

This low profile product is equipped with a hinged cover, a concealed tamper-resistant latch, and insect screens. Wiring terminates in plug-in, clamp-type screw terminals. Detectors mount to a standard single-gang electrical box, a four-inch octagonal, four-inch square electrical box, or WIREMOLD 5739 fixture box.