Labconco Guardian Jr. Airflow Monitor 9743200 Series - Manual (Page 8)

INSTALLATION
4
Disconnect your fume hood from its electrical service prior to beginning the installation of your
new monitor.
The installation of your monitor is separated into two segments, the alarm module and the power
supply assembly. Installation is as follows:
Alarm Module
1. Remove the right hand corner cover panel from your Protector Fume Hood. This is
achieved by removing the service fixture knobs, if provided, and then removing the three
Phillips head screws retained in the corner cover. Remove the black outlet cover plate
located in the top electrical position on this panel.
a. If installing the alarm on either the Basic 47 or Basic 70 inch hood, you would need
to remove the right side access panel on the hood to gain access in removing the
blank outlet cover plate.
2. Reinstate the corner cover panel to the hood using the screws that were removed in Step 1.
3. On the Protector Fume Hoods only, attach the molded rubber elbow connector directly to
the back port connection on the alarm module assembly.
4. Thread the gray colored power supply lead wire assembly through the backside of the
corner post and out through the electrical cutout in the corner cover. Attach directly to the
connector located on the back of the power module assembly.
5. Insert the clear tubing (9 ft.) through the backside of the corner post and out through the
electrical cutout in the corner cover. Attach the tubing directly to the elbow connector, cut
to length, NO kinks, (Protector Hood) or the connector located on the back of the power
module assembly.
6. Locate the alarm module in the electrical cutout in the corner cover or side panel of your
hood, being careful not to pinch either the electrical wiring or sensor tube. Lock the
bottom of the alarm module in place by sliding the bottom edge of the assembly down over
the edge of the cutout. Next, secure the top of the alarm with the two #6-32 screws.
Mounting holes for these screws are located underneath the black label surrounding the
electrical cutout. Leave the label in place and secure directly through it to the corner cover.
7. Route the wiring and plastic tubing up the backside of the corner posts and attach as
shown. Refer to Installation Drawings.
NOTE: Make sure to keep the tubing and wiring out of the travel area of the sash weights.
Power Supply Module
8. Locate the power supply module on the top of the fume hood liner assembly and use the
supplied Velcro strips to secure in place.
9. Drill a 3/8" diameter hole in the hood exhaust collar or blower housing, depending upon
your specific model of fume hood. Refer to Installation Drawings for exact locations.