13
CEILING RINGS
The ceiling ring is to meet fire stop requirements.
Accessory Ceiling Ring (P/N 7660---2841) may be
used, (see Figure 10) or the mobile home manufactur-
er or the installer may use other approved methods to
stop fire.
If required, three (3) sections of Accessory Ring may be
used as shown in Figure 10B to provide closer clear-
ance around roof jack.
Figure 10 — Ceiling Rings
A
B
DUCT CONNECTORS
The duct connector is designed for use on ducts down to
12” in width. When using the connector on smaller width
ducts, there will not be sufficient clearance to bend the tabs
on two sides of the duct connector.
In such cases the tabs may be attached to the sides of the
duct by using sheet metal screws or other suitable fasten-
ers. Holes for sheet metal screws are provided in three (3)
tabs on each side of the duct connector. If more than 3 tabs
need to be used to provide a more secure and air tight con-
nection, the remaining tabs can also be fastened to the
duct with screws after drilling the required screw holes.
If tape is used to provide a better air seal, it should be a type
approved by the applicable national or local codes.
TABLE 6 — Duct Connectors
Sales Package
Part Number
Depth
7681---6621
7681---602
2” Duct Connector — For Ducts 1---1/8” below top of floor surface
7681---6631
7681---603
3” Duct Connector — For Ducts 2---1/8” below top of floor surface
7681---6651
7681---605
5” Duct Connector — For Ducts 4---1/8” below top of floor surface
7681---6661
7681---606
6” Duct Connector — For Ducts 5---1/8” below top of floor surface
7681---6671
7681---607
7” Duct Connector — For Ducts 6---1/8” below top of floor surface
7681---6681
7681---608
8” Duct Connector — For Ducts 7---1/8” below top of floor surface
7681---6691
7681---609
9” Duct Connector — For Ducts 8---1/8” below top of floor surface
7681---6611
7681---611
11” Duct Connector — For Ducts 10---1/8” below top of floor surface
7681---6711
7681---612
12” Duct Connector — For Ducts 11---1/8” below top of floor surface
TEMPLATE & CUTOUT DIMENSIONS
14”
13---9/16”
11---9/16”
Duct Cutout
Dimensions
12”
NOTE:
Duct Connector may be used
positioned in any of four (4))
positions to fit duct.
Figure 11 — Duct Connector Dimensions
Casing Front
Door Front
15---7/8”
9---7/8”
12---1/4”
15---7/8”
1---13/16
9---3/4”
23”
1”
Floor Cut---out Line
Flue Center
Duct
Locating
Hole
1---15/16”
Figure 12 — Template
