4Contents Of The Duct Smoke Detector Kit

[3] Figure 1: Exploded View Of Duct Detector Components

FOAM

GASKETS

CONDUIT HOLES

DETECTOR

SAMPLING TUBEHOUSING

FILTERS

PLASTIC	TERMINAL STRIP
SAMPLING TUBE

POWER BOARD

PLASTIC SAMPLING TUBE

SELF-TAPPING SCREW

COVER MOUNTING

DETECTOR BOARD

DETECTOR

COVER

SCREWS

WARNING

For this detector to function properly, it MUST be installed according to the instructions in this manual. Furthermore, the detector MUST be protected from the elements and operated within ALL electrical and environmental specifi- cations listed in this manual. Failure to comply with these requirements may prevent the detector 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 x 11⁄4” sheet metal machine 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. Metal sampling tube end plug

10. One plastic sampling tube

11. One #8 self-tapping screw for the plastic sampling tube NOTE: For ducts over 11⁄2 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 DH100LP 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 (anemom- eter) to check the air velocity in the duct.

[5.2] 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.

[5.2.1] Sampling Tube Installation for Ducts Less Than 11⁄2 Feet Wide (see Figure 2)

1.Remove the front cover.

2.Slide the plastic sampling tube into the housing bushing.

3.Align the holes in the bushing with the holes in the sam- pling tube. Make sure there are six exposed holes on the plastic sampling tube. Secure with the #8 self-tapping screw into the bottom hole of the permanent tube.

NOTE: The sampling tube end cap is critical to the proper operation of the duct smoke detector. The end cap is needed to create the proper air flow to the sensor of the duct smoke detector.

NOTE: For ducts greater than 11⁄2 feet in width, refer to sections [5.4.1] and [5.4.2].

Figure 2. Sampling tubes connected to duct smoke detector:

D200-15-00

I56-0083-07R