System Sensor INNOVAIR DH100ACDCLWP - Manual (Page 2)

This device will not sense smoke unless the ventilation sys-
tem is operating and the cover is installed.
For this detector to function properly, it MUST be installed
according to the instructions in this manual. Furthermore,
the detector MUST be operated within ALL electrical and
environmental specifications listed in this manual. Failure
to comply with these requirements may prevent the detec-
tor from activating when smoke is present in the air duct.
[4] Contents Of The Duct Smoke Detector Kit
1. Complete housing base and cover assembly
2. Two #10×1
1 ⁄
4
″ sheet metal screws for mounting
3. Two sampling tube filters
4. One test magnet
5. Drilling template
6. Two foam gaskets
7. Four #6-self tapping mounting screws for the metal
sampling tube and optional exhaust tube extension
8. One sampling tube end cap
9. One plastic telescoping sampling tube
10. One #8 self-tapping screw for the plastic sampling tube
NOTE: For ducts over 1
1 ⁄
2
feet, longer sampling tubes must
be ordered to complete the installation. They must
be the correct length for the width of the duct
where they will be installed. See Table 1 on page 3
to determine the sampling tube required for differ-
ent duct widths.
[5] Installation Sequence
[5.1] Verify Duct Air Flow Direction And Velocity
Model DH100ACDCLWP detectors are designed to be used
in air handling systems having air velocities of 100 to 4000
feet per minute. Be sure to check engineering specifications
to ensure that the air velocity in the duct falls within these
parameters. If necessary, use a velocity meter to check the
air velocity in the duct.
WARNING
WARNING
[5.2] Select Mounting Orientation
If possible, mount the DH100ACDCLWP with the wiring
entry hole(s) facing downwards, so that all wiring enters
the housing from below. This minimizes the possibility of
water entering around the conduit fittings. Mounting the
product with the wiring entry holes on the uppermost sur-
face should be avoided.
[5.3] Drill The Mounting Holes
Remove the paper backing from the mounting template
supplied. Affix the template to the duct at the desired
mounting location. Make sure the template lies flat and
smooth on the duct. Center punch holes A and B. Drill the
holes as indicated on the template.
[5.4] Secure The Detector Housing To The Duct
Slide the foam gaskets over the tube bushings as shown in
Figure 2. Use the two 1
1 ⁄
4
″ long sheet metal screws to screw
the detector housing to the duct.
CAUTION: Do not overtighten the screws.
Figure 2. Installation of foam gaskets over sampling
tube bushings:
[5.5] Sampling Tube Installation
The sampling tube is identified by a series of air inlet holes
on the tube. A plastic tube is included for ducts up to 18″
in width. All other tubes must be ordered separately and
resized for the duct width, as specified in Table 1. It is rec-
ommended that the sampling tube length extend at least
2 ⁄
3
across the duct width for optimal performance. The
D200-24-00 2 I56-0056-07R
[3] Figure 1: Exploded View Of Duct Smoke Detector Components
SCREW HOLES FOR
ATTACHING HOUSING
TO DUCT WORK.
FOAM
GASKETS
METAL
SAMPLING TUBE
SAMPLING TUBE
FILTERS
DETECTOR
COVER
DETECTOR BOARD
CONDUIT HOLES
DETECTOR
HOUSING
TERMINAL STRIP
POWER BOARD
COVER MOUNTING
SCREWS