Installation Guide

NFTU-5A S 5 Amps 4 Amps 3.3 Amps
3
Figure D. Front View - Four-Gang Installation
Figure E. Multigang Unit With Wallplate
Multigang Installation--
Side Sections Removed (Derating Required)
In multigang installations several controls or controls are grouped
horizontally in one ganging wallbox or in a series of connected
wallboxes. Multigang wallplates are available to simplify and
improve the appearance of this installation. A multigang mounting
frame is provided with standard multigang wallplates which
ensures proper alignment of controls, easy application of the
wallplate, and a flat surface for the installation. Refer to instruction
sheet (supplied with multigang wallplate) when using these com-
ponents.
1. Derating is necessary when side sections are removed. Use
Derating Chart (Table B) to determine maximum load safely
dimmed when side sections are removed. Match the control model
number and the number of side sections removed to determine
the maximum load that can be controlled.
To determine total ballast load, add the line current found on the
ballast label for all ballasts in the circuit. This will indicate the total
load for the control.
2. Determine the number of wallboxes necessary by using the
Wallbox Requirement Chart (Table C). When ganging any combi-
nation of small controls (NFTU-5A) and large controls, place all
small controls together at one end of the gang and all large con-
trols at the other end of the gang.
Table B. Derating Chart - Maximum Load
Table C. Wallbox Requirement Chart
Side Sections Removed
Model
Control
Size
No Sides
Removed
1 Side
Removed
2 Sides
Removed
0123456
00123456
11345678
235678910
35789101112
47 9 1011121314
Number of Small Controls
Number of
Large
Controls
5. Snap on multigang wallplate (or multiple single wallplates)
and adjust up or down for snug fit. Multigang wallplates (with
mounting frames and instructions) are available in a variety of col-
ors and sizes to simplify and beautify your installation. See Figure
E.
3. Turn power OFF. Wire each control according to step 3 in
"Single Unit Installation" on page 1.
4. Install controls in wallbox(es). Use center mounting holes for
first unit, then use offset mounting holes as required for proper
alignment (see Figure D). Allow 1/32" (0.8 mm) between controls
for ease in attaching wallplates.
Offset Mounting Hole
Center Mounting Hole