User's Guide

9/10/2019
19
NU Mounting
The Cel-Fi QUATRA NU is designed to be wall-mounted. Mounting accessories, including screws and
anchors for common material types (drywall, plywood, etc), are included in the standard kit.
The QUATRA RED NU has four (4) secure mounting tabs, two on each side. The two topmost tabs have
been keyholed to allow the unit to hang from preinstalled wall anchors.
Caution. Make sure the area behind any surface is free of electrical wires or other dangerous elements
before drilling.
6. To mount the NU, first determine the approximate location on the wall for the unit.
7. Hold the unit level against the wall. Using a pencil or similar marker, mark both top (left and right)
anchor points.
8. Using a drill, drill drill holes for the top wall anchors.
9. Hammer in the wall anchors.
10. IScrew both top screws into the wall anchors, leaving enough screw head space to hang the NU on
the screws.
11. Hang the NU on the top anchor screw heads.
12. With the NU in place, mark the lower tab wall anchors.
13. Remove the NU from the wall and drill/install the lower wall anchors.
14. Hang the NU on the top screws and install/tighten all four anchor screws.
Figure 10. Wall mounting the NU
NU Grounding
1. Connect one side of the grounding cable to the grounding terminal on the equipment with a ¼" – 20
Bolt.
2. Connect the other end to the main grounding bar installed inside the fire room. The recommended
cable gauge is AWG #10 or AWG #12 and color code green/yellow.