Bosch D1255RB Installation Guide download pdf (Page 87)

Installation Instructions

for the

DS1101i/1102i/1108i

Glass Breakage Detectors

1.0 Specifications

• Coverage: 25 ft. (7.6 m) maximum to farthest point of glass

being protected. For glass sizes over 12 in. by 12 in. (0.3 m by 0.3

m); types of 1/4 in. (0.64 cm) Plate, Tempered, Laminated, and

Wired glass; and 1/8 in. (0.32 cm) Plate glass (DSB).

• Mounting: Directly to the ceiling, on an opposite wall, or on an

adjacent wall.

• Input Power: DS1101i/1102i: 12 VDC (6 VDC min. to 15 VDC

max.), 23 mA nominal @ 12 VDC (29 mA max. in LED latch

mode).DS1108i: 12 VDC (9 VDC min. to 15 VDC max.), 21 mA

nominal @ 12 VDC (24 mA max. in LED latch mode).

• Standby Power: Connect to power sources capable of supplying

standby power of 23 mA-H for each hour of required standby time.

Four hour minimum standby time required for UL Certificated

installations.

• Alarm Relay: DS1101i/1102i: Form “C” reed relay (NO/C/NC).

Contacts rated 3.5 Watts, 125 mA @ 28 VDC for DC resistive

loads. Protected by a 4.7 ohm resistor in the common “C”

leg.DS1108i: Normally Closed reed relay (NC/C). Contacts rated

3.5 Watts, 125 mA @ 28 VDC for DC resistive loads. Protected

by a 4.7 ohm resistor in the common “C” leg.

• Tamper: Normally Closed (NC/C) rated 125 mA @ 28 VDC

maximum.

• Operating Temperature: -20° to +120°F (-29° to +49°C). For

UL Certificated installations, the temperature range is +32° to

+120°F (0° to +49°C).

• Enclosure: Round = DS1101i/DS1108i = 3.4 in. diameter by 0.83

in. D (8.6 cm diameter by 2.1 cm D). Square = DS1102i = 3.4 in.

H, 3.4 in. W, 0.83 in. D (8.6 cm H, 8.6 cm W, 2.1 cm D).

• Accessories: DS1110i Glass Breakage Tester.

2.0 Installation Considerations

NOTE: Always pre-test the detector’s location using the DS1110i

Glass Breakage Tester.

• Do Not…

…Mount the detector with obstructions between the glass being

protected and the detector.

…Mount on the same wall as the glass being protected.

…Mount the detector closer than 5 ft. (1.5 m) to the wall that the

glass being protected is on, or any hard, sound reflecting surface.

…Mount closer than 2 ft. (0.6 m) to heating or cooling outlets;

mount as far away as possible. If drafts from these outlets

blow on the detector, select a different location for the

detector. Use the environmental test (see Section 4) to verify

good installation locations.

…Install on 24-hour protection circuits.

• If you must install the DS1101i, DS1102i, or DS1108i in a zone

that is armed when occupied...

…Avoid acoustically live areas such as kitchens and bathrooms.

…Use a delay zone to provide the user time to acknowledge the

false alarms.

…Instruct system users how to respond to a false alarm.

• Remember…

…The best mounting location is 10 to 20 ft. (3 to 6 m) from the

glass, in-line with the glass’s center, and on the ceiling or oppo-

site wall of the glass being protected. Do not exceed maximum

range.

…The detector should be within ±30° of the center of the glass to

be protected.

…Range will be reduced in areas that are acoustically soft. This

may be due to carpeting, drapes, plants, or other sound

absorbing materials. The DS1110i Glass Breakage Tester should

be used to verify range in all installations.

…Glass break detectors are intended only as a component of a

perimeter protection system. They should always be used in

conjunction with motion sensors.

…Glass breakage detectors are designed to detect the breakage

of framed glass and may not detect such things as bullet holes,

spontaneous breakage of glass (with no impact), and removal

of glass.

• Maximum range:

The maximum detection range is 25 ft. (7.6 m) from the farthest cor-

ner, for glass sizes 12" by 12" (0.3 m by 0.3 m) and larger.

Hint: Tie a 25 ft. (7.6 m) string to the detector. The string should be

able to touch every part of the glass being protected. If any

part of the glass can not be touched by the string, it is out-

side of the detector’s coverage and additional detectors

should be used.

3.0 Selecting a Mounting Location

Opposite Wall Mounting

• Mount the detector where there are no objects between itself and

the glass.

• Do not mount the detector

closer than 5 ft. (1.5 m) to the

wall that the glass being

protected is on, or any hard,

sound reflecting surface.

• The detector should be within

±30° of the center of the glass

to be protected (line B in Fig-

ure A).

• Make sure the detector is no farther than 25 ft. (7.6 m) from any

corner of the glass (line A in Figure A).

Ceiling Mounting

• The recommended location

is half the distance between

the glass and its opposite

wall or 2/3 of the rated range,

whichever is smaller.

• Mount the detector where

there are no objects between

itself and the glass.

• Mounting to drop ceiling tiles

is acceptable.

• Do not mount the detector closer than 5 ft. (1.5 m) to the wall that

the glass being protected is on, or any hard, sound reflecting

surface.

• Make sure the detector is no farther than 25 ft. (7.6 m) from any

corner of the glass (line A in Figure B).

• The detector should be within ±30° of the center of the glass to

be protected (line B in Figure B).

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Bosch D1255RB Installation Guide Page 87

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