Bosch D300A-HV Bedienungsanleitung

High-Voltage Conventional Duct Detector

D300A-HV

en Installation Guide

High-Voltage Conventional Duct Detector Table of Contents | en 3

Bosch Security Systems, Inc. Installation Guide F.01U.035.635 | 5.0 | 2011.09

Table of Contents

1Notice 4

2Overview 4

3 Mounting 4

3.1 Preparing the Duct 4

3.2 Verifying Air Flow and Direction 5

3.3 Assembling the Intake Sampling Tubes 6

3.4 Mounting the Intake Sampling Tubes 6

3.5 Mounting the Detector 6

3.6 Verifying the Air Sampling 6

4 Wiring 6

4.1 Testing 8

4.2 Replacing the Detector Head 8

5 Specifications 8

4en | Notice High-Voltage Conventional Duct Detector

F.01U.035.635 | 5.0 | 2011.09 Installation Guide Bosch Security Systems, Inc.

1Notice

Use these instructions when installing the D300A-HV High-Voltage Conventional Duct Detector

in a system controlled by a fire alarm control panel (FACP). Install, test, and maintain the

D300A-HV according to these instructions, NFPA 72, local codes, and the Authority Having

Jurisdiction (AHJ).

2Overview

The D300A-HV High-Voltage Conventional Duct Detector Housing unit is an accessory device

complete with a photoelectric smoke detector head used in HVAC duct works. It can be

sampling is accomplished by two tubes that protrude into the duct. An exhaust tube of one

standard length is supplied in the installation kit with the duct detector housing unit. Once

the duct width is determined, the air intake sampling tubes must be ordered. Sampling tubes

are supplied in three standard lengths and cut to size to fit the duct. The air samples are

collected by positive pressure to the detector head. Output terminals are provided for remote

accessories such as remote status indicators (LEDs), reset keyswitches, and push buttons.

3 Mounting

3.1 Preparing the Duct

When preparing the duct, refer to Figure 3.1 on page 5.

1. Remove the paper backing from the mounting template included in the Installation Kit.

2. Attach the template to the duct at the desired location.

3. Using the template as a guide, drill four mounting holes (3/32 in. [2.38 mm] diameter) for

the duct mounting screws (four #12 x ½ in. [1.27 cm] sheet metal screws packaged in

installation kit).

4. Drill or punch holes for the sampling tubes in the air duct (1.375 in. [3.49 cm])

5. Clean all holes.

NOTICE!

– Failure to follow these instructions can cause the device to not properly operate.

– Bosch is not responsible for improperly installed, tested, or maintained devices.

– NFPA 72 requires a complete, system-wide Functional Test be performed after making

modifications, repairs, upgrades, or adjustments to the system’s components, hardware,

wiring, programming, software, or firmware.

– The D300A-HV is not intended for open area protection. Refer to the NFPA 90A and

NFPA72E , for general and additional duct smoke detector operation and installation.

DANGER!

Follow the procedures in these instructions to avoid personal injury and/or damage to the

equipment.

CAUTION!

To prevent false alarms, do not mount the D300A-HV Duct Detectors in areas:

– of extreme high or low temperatures,

– where high humidity exists,

– where duct air might contain gases or excess dust.

Refer to NFPA 90A, NFPA 72E, and NFPA 101. Also refer to Section 5.0 Specifications.

High-Voltage Conventional Duct Detector Mounting | en 5

Bosch Security Systems, Inc. Installation Guide F.01U.035.635 | 5.0 | 2011.09

3.2 Verifying Air Flow and Direction

Use the D300A-HV in ducts with air velocities between 300 ft to 4000 ft (91 m to 1219 m) per

minute. Verify the air velocity by checking the duct installation specifications, or by using an

Alnor Model 6000P (or equivalent) velocity meter. Refer to Figure 3.2 on page 5 for sampling

tube orientation to air flow direction.

Figure 3.1 Mount the Duct Housing

Figure 3.2 Intake Sampling Tube Orientation

1 - Six duct widths (minimum) from any

bend or other obstruction

7 - Exhaust tube

2 - Air duct 8 - Set screws (2)

3 - Template 9 - Intake sampling tube connectors (2)

4 - Stopper 10 - Duct mounting screws (2)

5 - Air flow for this illustration 11 - Top of the D300A-HV Housing

6 - Intake sampling tube

1 - Insert stopper at this end of the

intake sampling tube.

5 - Exhaust tube (2)

2 - Air flow 6 - Air holes (6)

3 - Intake sampling tube (2) 7 - Set screws (4)

4 - Duct width* 8 - Tops of the D300A-HV Housings

* Support the intake sampling tube where the duct width is greater than 3 ft (91 cm).

6en | Wiring High-Voltage Conventional Duct Detector

F.01U.035.635 | 5.0 | 2011.09 Installation Guide Bosch Security Systems, Inc.

3.3 Assembling the Intake Sampling Tubes

The intake sampling tube is a piece of steel piping with a series of holes drilled along its entire

length. Ensure the holes face into the airflow. Exhaust tubes are pieces of steel piping

approximately 7.5 in. (19 cm) long. The sampling tubes come in the standard lengths shown in

the table. You need to cut them to fit in the duct.

Table 3.1 Intake Sampling Tube Standard Lengths

1. Prepare the intake sampling tubes by cutting them to the desired lengths.

2. Insert the stopper, included in the Installation Kit, into the end of the intake sampling

tube.

3.4 Mounting the Intake Sampling Tubes

The intake sampling tube connectors are equipped with set screws that allow you to mount

the tubes only in the directions shown in Figure 3.2 on page 5. Consider the airflow direction

when orienting the intake sampling tubes.

1. Insert the intake sampling tubes and exhaust tubes into the connectors.

2. Align the set screws to the set screw holes in the tubes and tighten.

Refer to Figure 3.1 on page 5 for mounting details.

3.5 Mounting the Detector

1. Position the detector and intake sampling tube assembly in the desired location.

2. Using four duct mounting screws (four #12 x ½ in. [1.27 cm] sheet metal screws included

in the installation kit), attach the D300A-HV on the duct.

3.6 Verifying the Air Sampling

Use a Dwyer Model 4000 Differential Pressure Gauge or its equivalent to verify the correct air

sampling. Ensure the pressure differential between the input sampling tube and exhaust tube

is greater than 0.01 in. (0.3 mm) and less than 1.2 in. (3.1 cm) of water.

Refer to Figure 3.2 on page 5 for the intake sampling tube orientation to air flow direction.

4 Wiring

Wiring must conform to applicable local codes, ordinances, and regulations covering this type

of device. Wire the detectors according to the engineering drawing for that particular job

requirement. For D300A-HV wiring details, refer to Figures 4.1 on page 7. Terminals are

suitable for up to 14 AWG (1.8 mm) wire.

Model Number Sampling tube length

FAA-325-2.5 2.5 ft (76 cm)

FAA-325-5 5 ft (152.5 cm)

FAA-325-10 10 ft (305 cm)

NOTICE!

Ensure that power is removed from all wiring before routing.

Observe polarity.

CAUTION!

Do not use looped wire under Terminals. Run break wire to provide supervision of

connections.

High-Voltage Conventional Duct Detector Wiring | en 7

Bosch Security Systems, Inc. Installation Guide F.01U.035.635 | 5.0 | 2011.09

To wire the D300A-HV:

1. De-energize the power source.

2. Wire all connections according to the engineering drawings.

3. Verify the system wiring.

4. Energize the detector.

Figure 4.1 Wiring the D300A Terminals

Figure 4.2 Wiring the D300A to an FACP

1 - Switche Power connections upon

reset(connect items 2 or 3, not both)

5 - Alarm contacts 1 A at 24 VDC

2 - 230 VAC 60 Hz input at 0.1 A

maximum

6 - Trouble contacts 10 A at 115 VAC*

3 - 24 VAC/VDC 60 Hz input at 0.1 A

maximum (detector only). Up to 1.9 A

for auxiliary outputs.

7 - Remote accessories

4 - Alarm contacts 10 A at 115 VAC

* Trouble contacts are shown in non-energized condition. Trouble contacts monitor power

connected and head removed.

1 - UL Listed FACp 3 - EOL Device

2 - D300A-HV Detector

11 11

12 12

8en | Specifications High-Voltage Conventional Duct Detector

F.01U.035.635 | 5.0 | 2011.09 Installation Guide Bosch Security Systems, Inc.

Figure 4.3 Remote Access Memory

4.1 Testing

The D300A-HV photoelectric detector has a built-in sensitivity window verification feature. If

the detector is within its calibrated sensitivity range, the detector LEDs flash green in standby

or normal operation. If the detector drifts outside its sensitivity range, the LEDs flash red to

indicate an out of sensitivity condition. Bosch D1000 Calibrated Smoke Detector Tester may

also be used to check sensitivity.

4.2 Replacing the Detector Head

If the detector head supplied with the D300A-HV must be replaced, only replace the existing

head with a D282A-DH Replacement Photoelectric Smoke Detector Head.

1. Remove the four screws holding the detector’s cover.

2. Remove the existing detector head by twisting it counterclockwise.

3. Insert the D282A-DH and turn it clockwise.

4. Replace the detector’s cover and tighten the screws.

5 Specifications

1 - 1.2 kΩ, 1 W current-limiting resistor 3 - Key or push button “Test/Reset” switch

(4 A at 24 VDC)

2 - Red "ALARM LED" (15 mA at 24 VDC) 4 - Green “Pilot” LED (15 mA at 24 VDC)

Black (-)

Red (+)

Black (-)

Red (+)

Standby Current 20 mA at 24 VAC

13 mA at 24 VDC

8 mA at 230 VAC

Alarm Current 95 mA at 24 VAC

60 mA at 24 VDC

15 mA at 230 VAC

Alarm Relay Contact Rating 10 A maximum at 250 VAC resistive

Trouble Relay Contact Rating 10 A maximum at 250 VAC resistive

Sensitivity Range (Factory Set) 1.5%/ft to ~2.75%/ft (4.8%/m to ~ 8.7%/m)

Differential Pressure 0.01 in. (0.25 mm) - 1 in. (3 cm) of water

Air Velocity 300 ft/min to 4000 ft/min (91 m/min to 1219 m/

min)

Ambient Temperature +32°F to +120°F (0°C to +49°C )

High-Voltage Conventional Duct Detector Specifications | en 9

Bosch Security Systems, Inc. Installation Guide F.01U.035.635 | 5.0 | 2011.09

Humidity 10% RH to 85% RH (non-condensing)

Intake Sampling Tubes FAA-325-2.5: 2.5 ft (0.8m)

FAA-325-5: 5.0 ft (1.5m)

FAA-325-10: 10 ft (3m)

Replacement Detector Head D282A-DH Replacement Photoelectric Smoke

Detector Head

10 en | Specifications High-Voltage Conventional Duct Detector

F.01U.035.635 | 5.0 | 2011.09 Installation Guide Bosch Security Systems, Inc.

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