Bosch Appliances D296/D297 инструкция обслуживания

D296/D297 Series Projected Beam Smoke Detectors Application Guide[...]

2 D296/D297 Series Application Guide Contents 1.0 Scope --------------------------------------------------------------- 3 2. 0 Glossary of T erms ------------------------------------------------ 3 3.0 Introduction -------------------------------------------------------- 4 4.0 S pecificatio ns ----------------------------------------------------- 5 [...]

D296/D297 Series Application Guide 3 1. 0 Scope This application guide is intended to assist in determining the best locations and applications of the D296 Series Long Range Beam Smoke Detectors. This application guide contains information from the National Fire Protection Association standard NFP A-72, the National Fire A larm Code, on automatic f[...]

4 D296/D297 Series Application Guide 3.0 Introduction Why should I use Beam Smoke Detectors and where should I use them? • Where there are high ceilings such as in atriums and aircraft hangers. Because the detectors mount on the walls easier access is achieved. • Where there is a dusty environment such as in warehouses, factories and barns. The[...]

D296/D297 Series Application Guide 5 4.0 Specifications Power: D296 18 to 32 VDC Receiver: 45 mA @ 24 VDC, Transmitter: 20 mA @ 24 VDC D297 10.2 to 18 VDC Receiver: 50 mA @ 12 VDC, Transmitter: 20 mA @ 12 VDC Alarm Output: One Normally Open (NO) Contact rated 1 A, 60 VDC maximum for resistive loads. One Auxiliary Form “C” (NO/C/NC) contact rate[...]

6 D296/D297 Series Application Guide 6.0 Applications 6. 1 Coverage The D296 Series Projected Beam Smoke Detectors are primarily used to provide for smoke detection in large areas with open or high ceilings. The D296 Series Detectors have a coverage range of up to 350 ft (106 m). On a smooth flat ceiling, the beams may be placed up t o 60 ft (18 m)[...]

D296/D297 Series Application Guide 7 6. 3 Environmental Considerations 6.3.1 Outdoor Beam smoke detectors are inappropriate for outdoor applications. Environmental conditions such as temperature extremes, bright sunlight, rain, freezing rain, snow , sleet, fog and dew can interfere with the proper operation of the detector . Outdoor conditions also[...]

8 D296/D297 Series Application Guide 6. 5 Location and Spacing NFP A 72-2002 ® , 5.7.3.4.1 states: “Projected beam-type smoke detectors shall be located in accordance with the manufacturer ’s documented instructions.” The D296 Series Projected Beam Detectors allow for a Range (distance between the Transmitter and Receiver) of 30 to 350 feet [...]

D296/D297 Series Application Guide 9 If the ceiling beams (joists) exceed 1 ft (.03 m), the spacing between the beams exceeds 8 ft (2.4 m) or the ceiling height exceeds 12 ft, the detectors must be located in every ceiling beam pocket. T ransmitte r Receiver Ceil in g be ams (joi sts ) T ransmitte r Receiver T ransmitt er Receiv er If the fire size[...]

1 0 D296/D297 Series Application Guide 6.6.3 Peaked Ceilings Peaked structures follow the same guidelines as sloped ceilings with one exception: When calculating the location of the detectors, the first detector is within 3 ft (1 m) of the peak, measured horizontally . Additional detectors are spaced down from the detector near the peak. 6.6.3 Long[...]

D296/D297 Series Application Guide 11 7.0 Worksheet Be sure to include site features such as: • Support Beams (include direction) • Support posts • Peaks • Lights • Air handling units (HV AC) • Shelving • Anything suspended from the ceiling that might interfere with the beam • Directions (North, South, etc.)[...]

© 2004 Bosch D296/D297 Series Projected Beam Smoke Detectors 130 Perinton Parkway , Fairport, New Y ork, USA 14450-9199 Application Guide Customer Service: (800) 289-0096; T echnical Support: (888) 886-6189 P/N: F01U500951B 8/04 Be sure to include site features such as: • Support beams • Ceiling height • Peaks Be sure to include site feature[...]