TMLE 1
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| EquivalentNumber | EquNalent | ||||
)uct Pieces | Length*x | Used = | Length |
| |||
| 5“round | 2.7 | X | ( | R.)i= |
| ft |
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D | ;:::;d |
| x | ( | fi.)t= |
| |
| straight | 1 | fi | ||||
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| 3X” x 1o“ | 1 |
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| ft |
| \ str~ght | x | ( | fi.)t= |
| ||
| 5“,No | 37 fi. x( |
| )= |
| ft | |
| elbow |
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Q | 6“,%0 | 15 fi. x | ( |
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| |
| elbow | )= |
| fi | |||
| 5“,45” | 18 fi. x( |
| )= |
| ft | |
| elbow |
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a | 6“,45” | 9fi. | x( |
| )= |
| ft |
elbow |
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| Flexible | (14 ti. per inch)x |
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| MetalOffset |
| ft. | ||||
| Adapter | (— | in. offset) = |
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@ | 3WX1O” | 16fi. x( |
| )= |
| ft | |
90°elbow |
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@ | 3WX1O” | 5fi. | x( |
| )= |
| fi |
45°elbow |
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| 3TX1O” |
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Q | W“flat elbow 18fi. x( |
| )= |
| ft | ||
| 5“round |
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| to 3B” x 1o“ | 3fi. | x( |
| )= |
| ft |
| transition |
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%6“round
to 3%”x 1o“
transition | 7ti. x ( | )= | R |
| SubtotalColumn1 | = | ft |
*Equivalentlengthsofductpiecesare based on actualtes~ andreflectrequirementsforgood ventingperformancewithanydowndraftcooktop.
~Measureandfistfeetofstraightductused. Countandtistthe quantityofd other duct piecesfor the “NumberUsed”ofeachtype.
IMWRTMT
For maximumefficiency,use the shortest and straightestductrun possible,withas fewfittings
as possible.Forsatisfactoryperformance, theductrunshodd notexceed60 feet qtient len~.
Ventingperformanceis improvedby using largerdiameterducL
| EquivalentNumber | Equivalent | |
)uct Pieces | Length*x Used | = Length | |
5“round |
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to 35” x 10” |
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transition | 37 fi. x( | )= | R. |
90°elbow | |||
6“round
Qto 3%”x lo” transition
| 90°elbow | 2ofi. x( | )= | ft. | ||
| 3%”x 1o“ |
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| |
a | to 6“round | 5fi. | x ( | )= | ft. | |
transition | ||||||
| 3%”x 1o“ |
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| to 6“round |
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% | transition | 12 fi. x( | )= | ft. | ||
90°elbow | ||||||
| Tapered |
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. | 5“round |
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m | to 6“round | 6fi. |
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| transtion | X( | )= | ft. | ||
| 5“roundcollar |
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| |
& | to 6“round |
|
| )= | R. | |
captransition 13fi. x( | ||||||
| 5“round |
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| |
| wall cap | 84 fi. x( | )= | ft. | ||
| with damper | |||||
D | 6“round |
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| |
| ?; 7&per | 21ti. | x( | )= | ft! | |
| 3%”x 1o“ |
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= | wdl cap | 27 fi. x( | )= | ft. | ||
withdamper | ||||||
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9 | 6“round | 20X()= |
| ft. | ||
roofcap |
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e | 6“round | 24x()= |
| ft. | ||
roofvent |
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| SubtotalColumn2 | = | ft. | ||
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| SubtotalColumn1 | = | ft. | ||
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| TOTALDUCWORK= | ft. | |||
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| Should not exceed60 feet. | |||
H flexiblemeti ductingis used,d the equivalent feetvaluesin the tableshouldbe doubled.me flexiblemeti ductshouldbe straightandsmooth andextendedas muchas possible.
DO N~ usefitible plasticduc~.
Ventins~ation shouldnot exceed60feet equivalentlength.
Bloweris ratedat 300 Cm at 0.1inch ofwater backpressure.
I
50
