Duct Connectors - Evcon DLAS Series Installation Instructions Manual

Installing Ceiling Ring
The ceiling ring is to meet fire stop requirements.
Accessory Ceiling Ring (P/N 7660-2841) may be used,
(see Figure 8) or the mobile home manufacturer 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 8a to provide closer clearance
around roof jack.
Figure 8

DUCT CONNECTORS

IMPORTANT
SELECT PROPER DEPTH
OF DUCT CONNECTOR
(2, 3, 5, 6, 7, 8, 9, 11 & 12 INCHES)
All duct connectors will fit openings of sub-base or furnace
bottom in any one of four (4) positions. Place proper duct
connector in the opening in the best position, (duct con-
nector may be shifted in either direction for best location).
Now that the duct connector is located, mark duct opening
with a scribe or marking pen, then remove duct connector
and cut hole in duct to correct size according to dimensions
shown in Figure 5. Cut duct accurately to prevent air leak-
age.
Reinstall duct connector with tabs inside of hole in the duct
and bend tabs up firmly against underneath side of duct.
Sales Package
7681-6621
7681-6631
7681-6651
7681-6661
7681-6671
7681-6681
7681-6691
7681-6611
7681-6711
Figure 8a
DUCT CONNECTOR TABLE
Part Number
7681-602 2" Duct Connector — For Ducts 1-1/8" below top of floor surface
7681-603 3" Duct Connector — For Ducts 2-1/8" below top of floor surface
7681-605 5" Duct Connector — For Ducts 4-1/8" below top of floor surface
7681-606 6" Duct Connector — For Ducts 5-1/8" below top of floor surface
7681-607 7" Duct Connector — For Ducts 6-1/8" below top of floor surface
7681-608 8" Duct Connector — For Ducts 7-1/8" below top of floor surface
7681-609 9" Duct Connector — For Ducts 8-1/8" below top of floor surface
7681-611 11" Duct Connector — For Ducts 10-1/8" below top of floor surface
7681-612 12" Duct Connector — For Ducts 11-1/8" below top of floor surface
Secure duct connector with four (4) sheet metal screws us-
ing holes provided in the connector, and the furnace casing
bottom or in the sub-base. See Figure 6 and 7.
The duct connector is designed for use on ducts down to
12" in width. When using the connector on 12" wide 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 applicable national or local codes
14"
DUCT CUTOUT
DIMENSIONS
13-9/16"
Figure 9
TABLE 8
11
NOTE
11-9/16" 12"
NOTE:
Duct Connector may be used
positioned in any of four (4))
positions to fit duct.
DUCT CONNECTOR DIMENSIONS
Depth