Installation 5, Item description, Installations 4 and 5) – Titus Fire Rated IOM User Manual
Page 3
3
INSTALLATION 5
Four thermal insulating blanket strips are supplied. The strips are to be
laid between adjacent tee bars and the collar as depicted. No retaining
wire is required. All fasteners must be No. 8 sheet metal steel screws,
3
/
16
” tubular steel rivets, or
1
/
4
” minimum tack welds. Use a minimum of
two connections per side for rectangular or square dampers and three
equally spaced connections for round dampers. Space fasteners a max-
imum of 6” apart. A maximum of
1
/
8
” (
1
/
4
” total) clearance must exist
between the ceiling damper and diffuser or duct drop.
In each installation, all screw or rivet attachments shall be placed a min-
imum of
3
/
16
” from the edge of the damper frame, duct drop, or diffuser
frame. All dampers must be supported by No. 16 SWG, 1
1
/
2
” cold-rolled
steel channels adjacent to both sides of the duct drop with a No. 12
SWG vertical (not splayed) hanger wire at each end.
As an alternate, two hanger straps may be used with a No. 12 SWG
hanger wire support from each strap to structural members.
Hanger straps may be factory supplied (optional) or may be field fabri-
cated from 1” wide x 3” long strips of No. 20 gauge galvanized steel.
Form as shown in Hanger Strap Detail. Fasten hanger strap to damper
frame using
3
/
16
” tubular steel rivets. Rivets must not interfere with oper-
ation of the damper blades.
7
6
2
5
3
4
1
8
5
3
4
ITEM DESCRIPTION
1. Damper
2. Diffuser (No. 24 Gauge Minimum)
3. Ceiling Grid (UL Classified)
4. No. 12 Gauge Steel Wire
5. No. 16 Gauge Steel Wire
6. Ceiling Material (UL Classified)
7. Thermal Insulating Blanket
8. Hanger Strap
ITEM DESCRIPTION
(Installations 4 and 5)
1. Damper
2. Diffuser Frame (No. 24 Gauge Minimum)
3. #8 Sheet Metal Steel Screw (see text)
4. Ceiling Grid (UL Classified)
5. No. 12 Gauge Steel Wire
6. No. 16 Gauge Steel Wire
7. Ceiling Material (UL Classified)
8. Thermal Blanket Insulation
9. Hanger Strap
10. Diffuser (Metallic or Non-Metallic)
18 x 18 Neck Size and Smaller
Installation 4
Any Size Unit with
2
10
4
7
5
8
3
6
9
6
1
6
2 3/4" MAX.
7
4
8
5
Installation 5
10
2
2" max.
1
3
CAUTION: Replace the thermal insulating blanket if it is damaged
during shipment or installation.