Heatilator C40 Installation Manual page 23

B. Offsets/Returns
• se an o set/return to
• n o set an return an e use as a sin le entit or se arate
WARNING! Risk of Fire! DO NOT use offset/returns greater than 30°. Chimney draft will be restricted and could cause
overheating and fire. Secure offsets with screws ( not to exceed 1/2" / 13 mm in length) Secure returns with strapping.
Straight chimney sections may be secured with screws. Keep chimney sections from separating or twisting.
• Measure t e s i t nee e to avoi t e over ea o stru tion Re er to i ension
• in t e a ro riate
a le 5 3 re resents t e re uire verti al learan e nee e to o
• Rea a ross t e art to n t e nu
Figure 5.2 Chimney Offset/Return
Table 5.3 Offset Dimensions
15-degree
A B
in. mm in. mm
1 5/8 41 13 3/8 340
2 /8 3 1 3/4 451
4 1/8 102 22 3/8 5 8
4 1/2 114 23 5/8
5 3/4 14 28 1/4
152 2 3/8
1/4 184 34 8 4
3/4 1 3 1/8
8 3/4 3 3/4 1010 1 1/4
222
10 3/8 2 4 45 5/8 115
10 5/8 2 0 4 3/4 118
11 /8 302 51 3/8 1305 22 1/4
13 1/2 243 5 1/4 1454 25 1/4
13 3/4 34 58 3/8 1483 2 1/2
15 381 3 1 00 28 1/4
1 1/2 41 8 3/4 1 4
18 45 4 5/8 18 5 34 1/4
1 5/8 4 8 80 3/8 2042 3 1/4
20 5/8 524 84 1/8 213
22 3/4 5 8 1 /8 2334 43 1/4 10
24 10 1/2 2451 45 1/8 114
25 /8 5 103 1/2 2 2
ro er asse l o air- oole
len t is uilt into t is art
Heatilator • C40 Constitution • 480-2340 Installation Manual • Rev D • 05/30/13
ass over ea o stru tions
i ension liste in a le 5 3
er o
A
B
1 - 1 /4 in. ( 32 m m )
O V E R L A P
30-degree
A B
in. mm in.
3 5/8 2 15 1/2
5 1/2 140 18 5/8
1/4 184 21 3/4
00 8 1/2 21 23 3/4
18 10 1/4 2 0 2
4 11 1/2 2 2 2
13 1/4 33 32 1/8
18 14 1/2 3 8 34 1/8
413 3 3/8
1 1/4 48 42 1/2 1080
20 1/2 521 44 5/8 1133
5 5 4 3/4 1213
41 52 /8 1343
3 55
18 58 1/8 14
31 1/4 4 3 1/4 1 0
8 0 8 1/2 1 40
4 3 3/4 18 3
3 1/8 4 /8 1 53
84 1/8 213
8 1/4 221
4 1/4 1251 4 1/2 2400
i ne arts result in an overla at
e i ension oin i in
i ne se tions/ o el nu
Example:
our
less t an 14-1/2 in 3 8
in a 30 o set/return
ou eter ine ro
8
e
one
mm SL306 SL312 SL318 SL324 SL336 SL348
3 4
- - -
4 3
1 - -
552
2 - -
03
- 1 -
8
1 1 -
3
- - 1
81
- 2 -
8
- - -
4
1 - -
- - 2
- - -
1 - -
- - -
13
- - -
1 - -
- 1 -
- - 1
- - -
1 - -
- - -
1 - -
- - -
i ne oints o 1-1/4 in 32
i ne se tion s
in i ure 5 2
it t e
lete t e o set/return
ers nee e et een t e o set an return
i ension ro i ure 5 2 is 14-1/2 in 3 8
sin a le 5 3 t e i ension losest to
is 14-1/2 in 3 8
t e ta le t at ou nee 34-1/8 in
Di ension et een t e o set an return
i ne o onent t at est ts our a
324
- - -
- - -
- - -
- - -
- - -
- - -
- - -
1 - -
1 - -
- - -
- 1 -
- 1 -
2 - -
- - 1
- - 1
- - 1
- - 1
1 - 1
1 - 1
- 1 1
- 1 1
- - 2
e tive
i ension easure ent in
ut not
us-
li ation is
23