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OPENING DIMENSIONS FOR WALL/ROOF PENETRATION
FOR MODEL DSD/DSLD
Inside
Wall Thimble
Diameter
(WT)
3"
12x12
4"
11 x 11
5"
12 x 12
6"
13 x 13
7"
14 x 14
8"
15 x 15
9"
16 x 16
10"
17 x 17
12"
19 x 19
14"
22 x 22
16"
24 x 24
18"
26 x 26
20"
28 x 28
22"
30 x 30
24"
32 x 32
26"
40 X 40
28"
42 X42
30"
44 X 44
32"
46 X 46
34"
48 X 48
36"
50 X 50
Table 11: Opening Dimensions for Model DSD & DSLD.
Dimensions are in inches.
CONDENSATE DRAINS
When an internal condensate drain is NOT part of the appliance:
1. A Drain length (DL) or a Tee with a drain tee cap (DTC) is strongly recom-
mended. Install this drain as close as possible to the appliance flue collar.
2. A condensate drain is required for every 30 feet of horizontal vent and
at the bottom of a vertical stack.
3. Use the Drain length for a straight horizontal run. Rotate the fitting so
that the drain tube is as vertical as possible.
4. Use a Tee at a transition from horizontal to vertical, and attach the Drain
Tee Cap to the appropriate branch of the tee.
5. A condensate drain tube kit is available to direct the condensate to an
appropriate location. A trap loop must be formed into the drain hose
and must be a diameter that is at least four times the appliance's rated
stack pressure in inches of water column or minimum 3 inches. Secure
the loop with a cable tie.
6. Flue gas condensate can have a low (3 to 5) PH level, follow all local and
national codes and regulations for the draining of acidic condensate.
7. In cold climate, do not install a condensate drain on the exterior of the
building. Doing so may result in dangerous icy conditions on surfaces near
the drain and may cause damage to the vent system and the building
exterior. DuraVent™ will NOT be held liable for any injury or property
damage due to formation of ice.
Wall
Roof
Roof
Thimble
Thimble
Thimble
Insulated
(RT)
Insulated
(WTI)
(RTI)
13x13
9x9
13x13
12 x 12
8 x8
12 x 12
13 x 13
9 x 9
13 x 13
14 x 14
10 x 10
14 x 14
15 x 15
11 x 11
15 x 15
16 x 16
12 x 12
16 x 16
17 x 17
13 x 13
17 x 17
18 x 18
14 x 14
18 x 18
20 x 20
16 x 16
20 x 20
22 x 22
18 x 18
22 x 22
24 x 24
20 x 20
24 x 24
26 x 26
22 x 22
26 x 26
28 x 28
24 x 24
28 x 28
30 x 30
26 x 26
30 x 30
32 x 32
28 x 28
32 x 32
40 X 40
32 x 32
32 X 32
42 X 42
34 x 34
34 X 34
44 X 44
36 x 36
36 X 36
46 X 46
38 x 38
38 X 38
48 X 48
40 x 40
40 X 40
50 X 50
42 x 42
42 X 42
9
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