Bosch Appliances D296/D297 manual Ft m Max

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 Ceilings

3ft. (1 m) Max.

S S

Long ceilings over 350 ft (107 m) require more than one set of detectors to cover the entire length. To determine the number of detector sets required, divide the length of the ceiling by 350 (107 if using metric standards) and round up to the nearest number. Locate the detector sets so that they cover an equal amount of area. Set the transmitters and receivers as shown to the right and below to avoid possible “cross-talk.” The minimum spacing between adjacent detectors is 1/10th of the distance between the transmitter and the receiver. For example, for a beam length of 300 ft (91.5 m), the minimum spacing is 30 ft (9.1 m).

10 D296/D297 Series Application Guide