GST D Series Benutzerhandbuch

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D Series Smoke and Heat Detector

Application Bulletin

Page I

Content

Section 1 Overview of D Series Smoke and Heat Detectors………….…1

Section 2 Heat Detector Applications………………………………………2

Section 3 Smoke Detector Applications…………………………………….8

Section 4 Initial Installation Testing…………………………………….….12

D Series Smoke and Heat Detector

Application Bulletin

Page 1

Section 1 Overview of D Series Smoke and Heat Detectors

The D Series family of detectors is comprised of a variety of detection technologies to meet

the needs of the fire protection community. The detectors are constructed of a white,

high-impact polymer. All detectors plug into DB-M01mounting base. The table below lists

the available detector models.

D Series Smoke and Heat Detectors Model Description

Model

Description

DI-M9103

Intelligent Combination 15oF(8.3℃)per minute Rate-of-Rise, and 135oF

(57℃) Fixed-Temperature Heat Detector

DI-M9102

Intelligent Photoelectric Smoke Detector

DI-M9101

Intelligent Combination Photoelectric Smoke and 135 o F (57℃)

Fixed-Temperature Heat Detector

DC-M9103

Conventional Combination 15o F (8.3℃)per minute Rate-of-Rise, and

135o F (57℃) Fixed-Temperature Heat Detector

DC-M9102

Conventional Photoelectric Smoke Detector

DC-M9101

Conventional Combination Photoelectric Smoke and 135 o F (57℃)

Fixed-Temperature Heat Detector

D series of smoke and heat detectors contain their own microprocessors which allow them

to make alarm decisionsbased on the information collected by their sensors. Depending on

the detector, decisions may be based on the information gathered by up to two independent

sensing elements.

DI-M9103/M9102/M9101 are intelligent addressable devices. The addressing is electronic

and can be configured using a hand held tool P-9910B, refer to the P-9910B programmer

operation manual for detail information. DC-M9103/M9102/M9101 are conventional

devices.

The D series detectors provide a red LED indicate the detector’s condition. The LED

indicator displays the following states:

DI-M9101,DI-M9102 and DI-M9103:

• Normal: Red LED flashing or off, modified by the hand held tool P-9910B

• Alarm/active: Red LED steady

DC-M9101, DC-M9102 and DC-M9103:

• Normal: Red LED flashing • Alarm/active: Red LED steady

Multiple sensing technologies are incorporated into DI/DC-M9101detectors, which makes

them suitable for a wide range of applications. The tables Smoke Detector Application

section of this document list the applications suitable for the DI/DC-M9101.

D Series Smoke and Heat Detector

Application Bulletin

Page 2

Section 2 Heat Detector Applications

WARNING: These detectors are intendedfor use with ionization and/or photoelectric smoke

detectors. A heat detector by itself does not provide life safety protection.

Heat detectors sense change in air temperature and initiate alarm conditions based on a

fixed-temperature point, rate of temperature rise, or amount of temperature rise above

ambient condition. Spot type heat detectors should be selected so that the rating is at least

20o F (11o C) above maximum expected ceiling temperature. Ceiling height, construction,

and ventilation play significant roles in detector performance and must be considered when

determining detector placement. The operating temperature range is 32℉to 100℉(0℃to

37.8℃)。

2.1 Spacing of Heat Detectors

Spot type heat detector spacing ratings are based on detector installation on a flat smooth

ceiling that is 10 feet (3m) high. The listed spacing equates detector operation with the

opening of a standard sprinkler head within 2 minutes (+/- 10 seconds) located 10 feet (3m)

from the same fire. Spot type detector spacing is shown in the figure below. Detector

coverage is typically represented as a square because most structures have flat sidewalls.

Actual detector coverage covers a circle whose radius is 0.7 times the listed spacing. Since

all of the area within the detector’s circle of coverage is suitable for detecting a fire, the

shape and dimensions of the detector coverage “square” in the figure below may be

modified. Note that, although the coverage “square” is now a “rectangle,” the coverage area

remains within the overall detector circle of coverage.

Figure 1：Listed heat detector spacing

(1) Heat detector S = Listed spacing between detectors

D Series Smoke and Heat Detector

Application Bulletin

Page 3

A spot type heat detector will cover all points located within 0.7 times the listed spacing. The

listed spacing for heat detectors is S = 50 ft. (15.3 m).

Figure 2: Detector circle of coverage

Figure 3: Alternative heat detector coverage configurations

When installed on the ceiling, spot type heat detectors must be located a minimum of 4 in.

(10 cm)from side walls.Wheninstalled on side walls, the detectormust be between 4 in. (10

cm) and 12 in. (30 cm) from the ceiling, as shown below.

D Series Smoke and Heat Detector

Application Bulletin

Page 4

Figure 4: Detector placement near ceiling or wall joints

The following figure shows the required heat detector spacing for a 200 ft.(60.9 m) by 200 ft.

(60.9 m) room with a 10 ft. (3m) ceiling. The figure shows 16 heat detectors with a required

listed spacing of S = 50 ft. (15.3 m).

Figure 5: Heat detectors spacing example

D Series Smoke and Heat Detector

Application Bulletin

Page 5

2.2 Ceiling Heat and Construction

When heat detectors are installed on other than flat, smooth ceilings or at ceiling heights

greater than 10 ft. (3 m), spacing adjustments must be made. The table below lists the

reduction in listed spacing that must be applied when detectors are mounted on ceilings

higher than 10 ft. (3 m). This reduced spacing yields the equivalent response of detectors

located on a 10 ft. (3 m) ceiling.

Spot type detector ceiling height reduction percentages

Ceiling height

Percent of listed spacing

Heat detector listed spacing

0 to 10 ft. (0 to 3 m)

100

50 ft. (15 m)

10 to 12 ft. (3 to 3.7 m)

46 ft. (14 m)

12 to 14 ft. (3.7 to 4.3 m)

42 ft. (13 m)

14 to 16 ft. (4.3 to 4.9 m)

39 ft. (12 m)

16 to 18 ft. (4.9 to 5.5 m)

36 ft. (11 m)

18 to 20 ft. (5.5 to 6.0 m)

32 ft. (10 m)

20 to 22 ft. (6.0 to 6.7 m)

29 ft. (9 m)

22 to 24 ft. (6.7 to 7.3 m)

26 ft. (8 m)

24 to 26 ft. (7.3 to 7.9 m)

23 ft. (7 m)

26 to 28 ft. (7.9 to 8.5 m)

20 ft. (6 m)

28 to 30 ft. (8.5 to 9.1 m)

17 ft. (5 m)

2.3 Exposed solid joists

Exposed solid ceilingjoistsmay impedethe flowof heatto the detectors.When spacing spot

type heat detectors, a joist is defined as any solid member extending 4 in. (10 cm) or more

down from the ceiling and spaced less than 3 ft(1 m) apart. The spacing of heat detectors

must be reduced by 50% in the direction perpendicular to the joist. The detectors must be

mounted on the bottom of the joists.

S = 50 ft. (15 m)

1/2 S = 25 ft. (8 m)

1/4 S = 13 ft. (4 m)

Figure 6: Heat detector spacing —solid joist construction

D Series Smoke and Heat Detector

Application Bulletin

Page 6

2.4 Exposed beams

Exposed beams may impede the flow of heat to the detectors. Beams are defined as

members extending 4 in. (10 cm) or more down from the ceiling and spaced more than 3 ft.

(1 m) apart. The spacing of heat detectors must be reduced by 33% in the direction

perpendicular to the beam. Detectors can be mounted on the bottom of the beams which are

less than 12 in. (30.4 cm) in depth and less than 8 ft. (2.4 m) on center. If beams are greater

than 12 in(30.4 cm) in depth and beam spacing exceeds 8 ft. (2.4 m) on center, then each

bay created by the beams must have at least one detector mounted on the ceiling. Heat

detectors should be mounted on the ceiling in each bay if the ratio of beam depth (D) to

ceiling height (H), D/H, is greaterthan 0.1 andthe ratio of beam spacing (W) to ceiling height

(H),W/H, is greater than 0.4.Heat detectors should be mounted on the bottom of each beam

if either the ratio of beam depth (D) to ceiling height (H), D/H, is less than 0.1 or the ratio of

beam spacing (W) to ceiling height (H), W/H, is less than 0.4.

Calculation:

D/H > 0.1 AND W/H > 0.4 then mount the detector on the ceiling

D/H < 0.1 OR W/H < 0.4 then mount the detector on the bottom of the joist

Figure 7: Heat detector spacing —beam construction

S = 50 ft. (15 m) 2/3 S = 33 ft. (10 m) 1/2 S = 25 ft. (8 m) 1/3 S = 17 ft. (5 m)

D Series Smoke and Heat Detector

Application Bulletin

Page 7

Notes

• Detectors can be located on the bottom of beams if the beams are less than12 in. (30 cm)

deep and beam spacing is less than 8 ft. (2.4 m).

• Beams less than 8 in. (20 cm) deep are considered flat ceilings. Heat detectors must be

mounted on the bottom of the beams.

• Spacing perpendicular to beams deeper than 8 in. (20 cm) must be reduced by 1/3 of the

listed spacing.

• If beam depth exceeds 18 in. (46 cm) and beam spacing exceeds 8.0 ft.(2.4 m) detectors

must be installed on the ceiling in each bay.

2.5 Sloped Ceiling

Rooms with peaked ceilings must have the first row of detectors placed within 3 ft. (1 m)

(measured horizontally) of the ceiling peak. Additional detectors must be spaced based

upon the horizontal projection of the ceiling and ceiling construction. Rooms with shed

ceilings having a slope greater than 1 ft. in 8 ft. (1 m in 8 m)must have the first row of

detectors within 3-ft. (1 m) of the high end of the ceiling. Additional detectors, if required,

shall be spaced based upon the horizontal projection of the ceiling and ceiling construction.

For roofs having a slope less than 30 degrees, horizontal spacing must be adjusted

according to the height of the peak. For roofs having a slope greater than 30 degrees,

horizontal spacing shall be adjusted according to the average sloped ceiling height.

Figure 8: Heat detector spacing —peaked ceiling

D Series Smoke and Heat Detector

Application Bulletin

Page 8

Section 3 Smoke Detector Applications

Smoke detectors sense the presence of smoke particles. In order for a smoke detector to

sense these particles, smoke must travel from the point of origin to the detector. When

evaluating a particular building or location for detector layout, likely fire locations should first

be determined, and paths of smoke travel from each of these fire locations should be

determined. Wherever practical, actual field tests should be conducted. The most desired

location for smoke detectors would be the common points of intersection of smoke travel

from fire locations throughout the building. Ceiling height, construction, and ventilation play

significant roles in smoke detector performance.

3.1 Avoidance of false alarms

Smoke detectors are sensitive to a number of environmental factors (other than smoke)

which may inadvertently activate the detectors. Careful consideration of the environment in

which a detector is installed will minimize unwanted detector activation (nuisance alarms).

Listed below are some common sources of false alarms to be considered when locating

smoke detectors.

• Cooking equipment

• Welding, cutting, and industrial processes

• Chemical fumes

• Dust

• Engine exhaust

• Vibration

• Excessive airflow

• Lightning and power outages

• Radio frequency transmissions

• Steam and moisture

Figure 9: Heat detector spacing —sloped ceiling

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