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).
1
Summary of Contents for D300A-HV
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