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en | Notice

High-Voltage Conventional Duct Detector

F.01U.035.635

 | 5.0 | 2011.09

                                                  I

nstallation Guide

                                               B

osch Security Systems, Inc.

1

Notice

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).

2

Overview

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 

powered by 24 VAC, 24 VDC, or 230 VAC and is intendend for high-voltage applications. Air 

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

.

Summary of Contents for D300A-HV

Page 1: ...High Voltage Conventional Duct Detector D300A HV en Installation Guide ...

Page 2: ......

Page 3: ...ble of Contents 1 Notice 4 2 Overview 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 ...

Page 4: ... 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 in 1 27 cm sheet metal screws packaged in in...

Page 5: ...ientation 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 a...

Page 6: ... 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 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 o...

Page 7: ...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 ...

Page 8: ...ectric 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 Pilo...

Page 9: ...urity 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 ...

Page 10: ...10 en Specifications High Voltage Conventional Duct Detector F 01U 035 635 5 0 2011 09 Installation Guide Bosch Security Systems Inc ...

Page 11: ......

Page 12: ...Bosch Security Systems Inc 130 Perinton Parkway NY 14450 Fairport USA www boschsecurity us Bosch Security Systems Inc 2011 ...

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