Installation and Maintenance Manual

Installation—General
UNT-SVX07D-EN 43
1. Insert the mounting bolts through the panel brackets of
the trim ring and secure to the hanger holes on the unit.
Tighten the mounting bolts to pull the trim ring snug
against the finished ceiling.
2. Install the bottom panel by placing the hinged end on
the trim ring hinged end (always at the unit’s return
end).
3. Adjust the expansion collar’s inner duct (only on fan-
co
il units with a bottom return) to ensure a tight fit
against the insulation located on the perimeter of the
bottom panel’s return louver.
4. Close the s-hook on each end of safety chain assembly.
In
sert s-hooks through holes in unit and door. Close s-
hook on door.
5. Insert retaining screws through bottom panel door and
place re
taining rings on screws.
6. Swing the bottom panel upward into position. Hook
the
safety chain to the bottom panel and the unit.
Tighten the panel to the unit with the fasteners
provided.
Notes:
• The trim ring assembly cannot accommodate unlevel
ceilings.
• On sizes 8, 10, and 12 center installation position and
use 2- or 3.5-inch bolts, whichever is best suited for
installation. Also, install two safety chains assemblies
on these sizes.
• Expansion collar is furnished with fan-coil with bottom
return only. The collar is not necessary for Force-Flo
units.
NOTICE:
Unit Leveling!
All unit panels and filters must be in place prior to unit
start-up. Failure to have panels and filters in place may
cause motor overload.
Figure 15. Installing the trim ring assembly on
horizontal recessed units
UNT-SVX07_-EN.book Page 43 Friday, April 27, 2012 9:40 AM