Thermador VCIN60RP Design Guide - Page 18

Equivalent Duct Lengths For Commonly Used Transitions

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VENTILATION | PLANNING INFORMATION EQUIVALENT DUCT LENGTHS FOR COMMONLY USED TRANSITIONS PLANNING INFORMATION DUCT PIECE Smooth Straight 3 1/4" x 10" Straight SIZE OF DUCT PIECE (IN.) 6 7 8 10 EQUIVALENT LENGTH (FT.) 1.2 0.95 0.7 0.6 N/A 1 3 1/4" x 14" Straight N/A 0.7 6 12 90° Elbow Round 7 8 8 6 6 5 45° Elbow Round 7 4 8 3 3 1/4" x 10" 90° Elbow Round N/A 5 3 1/4" x 10" 45° Elbow Round N/A 15 3 1/4" x 10" Flat Elbow N/A 20 Round to 6 1 3 1/4" x 10" 7 1 6 5 3 1/4" x 10" to Round 7 3 Round to 6 10 3 1/4" x 10" 90° Elbow 7 8 DUCT PIECE 3 1/4" x 10" to Round 90° Elbow 3 1/4" x 10" Center Reverse Elbow Left 3 1/4" x 10" Center Reverse Elbow Right SIZE OF DUCT PIECE (IN.) 6 7 N/A N/A EQUIVALENT LENGTH (FT.) 10 5 15 25 3 1/4" x 10" Left Reverse Elbow N/A 15 3 1/4" x 10" Right Reverse N/A 25 Elbow 6 2 7 2 Round Wall Cap 8 2 10 2 6 2 Round Roof Cap 7 2 8 2 2' Long 3 1/4" x 10" Flex N/A 20 3 1/4" x 10" to Round 10 1 7" Inline Backdraft Damper 7 3 1/4" x 10" Roof Jack and Shutter N/A NOTE: These commonly used installation parts can be purchased at a local hardware store. Thermador does not manufacture all these parts. 1.800.735.4328 | THERMADOR.COM 219

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VENTILATION
|
PLANNING INFORMATION
1.800.735.4328
|
THERMADOR.COM
219
EQUIVALENT DUCT LENGTHS FOR COMMONLY USED TRANSITIONS
PLANNING INFORMATION
DUCT PIECE
SIZE
OF DUCT
PIECE (IN.)
EQUIVALENT
LENGTH (FT.)
Smooth Straight
6
1.2
7
0.95
8
0.7
10
0.6
3
1
/
4
" x 10"
Straight
N/A
1
3
1
/
4
" x 14"
Straight
N/A
0.7
90° Elbow Round
6
12
7
8
8
6
45° Elbow Round
6
5
7
4
8
3
3
1
/
4
" x 10"
90° Elbow Round
N/A
5
3
1
/
4
" x 10"
45° Elbow Round
N/A
15
3
1
/
4
" x 10"
Flat Elbow
N/A
20
Round to
3
1
/
4
" x 10"
6
1
7
1
3
1
/
4
" x 10"
to Round
6
5
7
3
Round to
3
1
/
4
" x 10"
90° Elbow
6
10
7
8
DUCT PIECE
SIZE
OF DUCT
PIECE (IN.)
EQUIVALENT
LENGTH (FT.)
3
1
/
4
" x 10" to
Round 90° Elbow
6
10
7
5
3
1
/
4
" x 10"
Center Reverse
Elbow Left
N/A
15
3
1
/
4
" x 10"
Center Reverse
Elbow Right
N/A
25
3
1
/
4
" x 10" Left
Reverse Elbow
N/A
15
3
1
/
4
" x 10"
Right Reverse
Elbow
N/A
25
Round Wall Cap
6
2
7
2
8
2
10
2
Round Roof Cap
6
2
7
2
8
2
2' Long
3
1
/
4
" x 10" Flex
N/A
20
3
1
/
4
" x 10"
to Round
10
1
7" Inline
Backdraft Damper
7
3
1
/
4
" x 10" Roof
Jack and Shutter
N/A
NOTE:
These commonly used installation parts can be purchased at a
local hardware store. Thermador does not manufacture all these parts.