Installation—Mechanical
UNT-SVX07E-EN
53
Cabinet Units
Install the bottom panel by placing the hinged end on the
unit’s hinged end (always at the return end of the unit).
Refer to
“Dimensions and Weights,” page 12
for keyslot
hanger hole locations. Swing the panel upward into
position. Secure the panel with the fasteners provided. Do
not overtighten the fasteners.
Recessed Units
Refer to
“Dimensions and Weights,” page 12
for mounting
locations and unit weights. Follow the procedure below
and see
Figure 24, p. 53
.
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-
coil 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.
Insert s-hooks through holes in unit and door. Close s-
hook on door.
5. Insert retaining screws through bottom panel door and
place retaining 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.
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.
Table 21.
Parts list for trim ring assembly
Part description
Quantity
Bottom panel door
1
Trim ring assembly
1
Installation drawing
1
Unit size
02-06
08-12
0.25 - 20 x 0.50 in. retaining screw
2
3
Retaining ring
2
3
Safety chain assembly
1
2
0.25-20 x 3.50 in. bolt
4
5
0.25-20 x 2.00 in. bolt
0
1
Tinnerman clip
4
5
Figure 24.
Installing the trim ring assembly on
horizontal recessed units
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.
0.25-20 x 0.50 in.
retaining screw
S-hook
0.25-20 x 3.50 in.
mounting bolt
Trim ring
assembly
S-hook
Tinnerman
clips
Horizontal
recessed unit
(front discharge
unit shown)
Angle bracke
Expansion
collar assembly
(See notes)
Typical
opposite
Panel brackets
1 in. x 1 in.
open cell insulation
Retaining ring
Bottom panel door
See notes
See notes
