Thermador HMCN42FS Ventilation Guide - Page 29

Equivalent Duct Lengths For Commonly Used Transitions, Blower Options - parts

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BLOWER options INTEGRAL (MOUNTED ON HOOD) VTN600CV2C - 600 CFM VTN1080F - 1000 CFM VTN600F - 600 CFM VTN1000F - 1200 CFM VTN630C - 600 CFM 8 3/8" 8 1/4" 25" VTN1030C - 1000 CFM 8 1/4" 25" REMOTE (MOUNTED TO ROOF OR EXTERNAL WALL) VTR630D - 600 CFM VTR1030D - 1000 CFM VTR1330E - 1300 CFM INLINE (MOUNTED BETWEEN KITCHEN AND EXTERNAL WALL) VTI610D - 600 CFM VTI1010D - 1000 CFM 40 Equivalent DUCT LENGTHS FOR COMMONLY USED TRANSITIONS DUCT piece Smooth Straight 3 1/4" x 10" Straight SIZE of duct EQUIVALENT piece (In.) length (ft.) 6 1.2 7 0.95 8 0.7 10 0.6 N/A 1 3 1/4" x 14" Straight N/A 0.7 90° Elbow Round 45° Elbow Round 3 1/4" x 10" 90° Elbow Round 6 12 7 8 8 6 6 5 7 4 8 3 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 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 SIZE of duct EQUIVALENT piece (In.) length (ft.) 6 10 7 5 N/A 15 3 1/4" x 10" Center N/A 25 Reverse Elbow Right 3 1/4" x 10" Left Reverse Elbow N/A 15 3 1/4" x 10" Right Reverse Elbow Round Wall Cap Round Roof Cap 2' Long 3 1/4" x 10" Flex N/A 25 6 2 7 2 8 2 10 2 6 2 7 2 8 2 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. 41

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41
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
N/A
5
N/A
15
N/A
20
6
1
7
1
6
5
7
3
6
10
7
8
DUCT PIECE
SIZE OF DUCT
PIECE (IN.)
EQUIVALENT
LENGTH (FT.)
6
10
7
5
N/A
15
N/A
25
N/A
15
N/A
25
6
2
7
2
8
2
10
2
6
2
7
2
8
2
N/A
20
10
1
7
N/A
3
1
/
4
" x 10"
90° Elbow Round
3
1
/
4
" x 10"
45° Elbow Round
3
1
/
4
" x 10"
Flat Elbow
Round to
3
1
/
4
" x 10"
3
1
/
4
" x 10"
to Round
Round to
3
1
/
4
" x 10" 90° Elbow
3
1
/
4
" x 10" Center
Reverse Elbow Left
3
1
/
4
" x 10" Center
Reverse Elbow Right
3
1
/
4
" x 10" Left
Reverse Elbow
3
1
/
4
" x 10" Right
Reverse Elbow
Round Wall Cap
Round Roof Cap
2' Long
3
1
/
4
" x 10" Flex
3
1
/
4
" x 10"
to Round
7" Inline
Backdraft Damper
3
1
/
4
" x 10"
Roof Jack and Shutter
3
1
/
4
" x 10" to
Round 90° Elbow
EQUIVALENT DUCT LENGTHS FOR COMMONLY USED TRANSITIONS
BLOWER OPTIONS
VTN1080F - 1000 CFM
VTN1000F - 1200 CFM
VTN1030C - 1000 CFM
VTN600CV2C - 600 CFM
VTR630D - 600 CFM
VTI610D - 600 CFM
VTN600F - 600 CFM
VTR1030D - 1000 CFM
VTI1010D - 1000 CFM
VTN630C - 600 CFM
VTR1330E - 1300 CFM
INTEGRAL (MOUNTED ON HOOD)
REMOTE (MOUNTED TO ROOF OR EXTERNAL WALL)
INLINE (MOUNTED BETWEEN KITCHEN AND EXTERNAL WALL)
8
1
/
4
"
25"
8
3
/
8
"
8
1
/
4
"
25"
Note: These commonly used installation parts can be purchased at a local hardware store. Thermador does not manufacture all these parts.