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2400AIT Datasheet(PDF) 1 Page - Systemsensor advanced ideas. |
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2400AIT Datasheet(HTML) 1 Page - Systemsensor advanced ideas. |
1 / 4 page D400-03-00 1 I56-287-02 2400AT and 2400AIT Direct Wire Photoelectronic with Fixed Heat Smoke Detectors INSTALLATION AND MAINTENANCE INSTRUCTIONS A Division of Pittway 3825 Ohio Avenue, St. Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377-6495 Specifications Size: Diameter: 5.5 inches (140 mm) Height: 3.19 inches (81 mm); add 0.5 inches (13 mm) for thermal units Weight: 0.7 lb. (310 g) Air Velocity: 3000 ft/min (15 M/s) Operating Temperature: 0 ° C to 38°C (0° to 100°F) Operating Humidity: 10% to 93% Relative Humidity, noncondensing Visual Indicator: Solid State LED Latching Alarm: Reset by Momentary Power Interruption Audible Signal: 85dBA minimum interrupted tone when in alarm or supply voltage polarity is reversed Fixed Temperature Thermal: 135 °F (57°C) Electrical Ratings System Voltage: 24 VDC Maximum Ripple Voltage: 4 Volts peak-to-peak Start-up Capacitance: .02 µF Maximum Start-up Time: 36 Sec. Maximum Voltage Limits: 10 – 32 VDC Current Limits Standby: 120 µA Maximum; 100 µA Nominal Alarm Current: 15mA at 10V; 67mA at 32V; 48mA at 24V Reversed Supply: 5mA at 10V; 19mA at 32V; 15mA at 24V (Detector not in Alarm) Alarm Impedance: 666 ohms Maximum; 478 ohms Minimum Alarm Signal: 15mA Minimum in Alarm Before Installing Please thoroughly read the System Sensor manual I56-407- XX, Guide for Proper Use of System Smoke Detectors. This manual provides detailed information on detector spacing, placement, zoning, wiring, and special applications. It is available at no charge from System Sensor. (For installa- tions in Canada refer to CAN/ULC4-S524, Standard for the Installation of Fire Alarm Systems and CEC Part 1, Sec. 32.) General Description System Sensor 2400AT and 2400AIT photoelectronic smoke detectors, listed to UL 268, provide open area protection and are intended for use with UL-listed, compatible, 2-wire control panels. The sensor in this detector operates on the light scattering principle and features a unique photo-optic sensing chamber that optimizes smoke entry while mini- mizing the effects of ambient light. These detectors also provide restorable, 135 °F fixed-tem- perature heat detection. The 2400AT heat detection unit is integrated with the photoelectronic sensor while the 2400AIT’s heat detection unit is isolated from the photo- electronic smoke sensor and can be monitored separately. In addition, a piezoelectric horn in each detector produces an interrupted, 85 dBA tone when the individual detector alarms or when the supply voltage polarity is reversed. An LED on each detector lights to provide a local alarm in- dication and will remain on until the supply polarity is re- versed. A screw terminal is provided for a remote LED annunciator optional accessory (RA400Z). These detectors also have the latching feature. The alarm can be reset only by momentary power interruption. Mounting Each 2400 Series detector is supplied with a mounting bracket kit to permit mounting in either of two ways: 1. Directly to a 3- or 4-inch octagonal, 11/2-inch deep elec- trical box (See Figures 1 and 2). 2. To a 4-inch square electrical box by using a plaster ring with the mounting bracket kit supplied. Spacing NFPA 72E defines the spacing requirements for smoke de- tectors. Typically, this is 30 feet when the detectors are in- stalled on a smooth ceiling. However, ALL installations must comply with NFPA 72E and/or special requirements of the authority having jurisdiction. |
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