Takagi T?K4?IN - NATURAL GAS SUPPLY PIPING; PROPANE (LP) SUPPLY PIPING

Installation
18│Page
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‐NaturalGasSupplyPiping‐
MaximumDeliveryCapacityofCubicFeetofGasperHourofIPSPipeCarryingNaturalGasof0.60SpecificGravity
BasedonPressureDropof0.5”WC
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BasedonEnergyContentof1,000BTU/CubicFt.:Thewaterheaterrequires140CubicFt./hrfortheT‐KJr2‐IN/OS,
190CubicFt./hrfortheT‐K4‐IN/OS,and199CubicFt./hrfortheT‐D2‐IN/OS.
Unit:CubicFeetperHour
PipeSize LengthinFeet
Inches 10’ 20’ 30’ 40’ 50’ 60’ 70’ 80’ 90’ 100’ 125’ 150’ 200’
¾” 363 249 200 171 152 138 127 118 111 104 93 84 72
1” 684 470 377 323 286 259 239 222 208 197 174 158 135
1¼” 1,404 965 775 663 588 532 490 456 428 404 358 324 278
1½” 2,103 1,445 1,161 993 880 798 734 683 641 605 536 486 416
2” 4,050 2,784 2,235 1,913 1,696 1,536 1,413 1,315 1,234 1,165 1,033 936 801
‐Propane(LP)SupplyPiping‐
MaximumCapacityofPropane(LP)Basedon11”WCsupplypressureata0.5”WCpressuredrop
Unit:kBTUperHour
PipeSize LengthinFeet
Inches 10’ 20’ 30’ 40’ 50’ 60’ 70’ 80’ 90’ 100’ 125’ 150’ 200’
¾” 567 393 315 267 237 217 196 185 173 162 146 132 112
1” 1,071 732 590 504 448 409 378 346 322 307 275 252 213
1¼” 2,205 1,496 1,212 1,039 913 834 771 724 677 630 567 511 440
1½” 3,307 2,299 1,858 1,559 1,417 1,275 1,181 1,086 1,023 976 866 787 675
2” 6,221 4,331 3,465 2,992 2,646 2,394 2,205 2,047 1,921 1,811 1,606 1,496 1,260
Formoreinformation,pleaseseethebelow.
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BasedonEnergyContentof1,000BTU/CubicFt:
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Divideeachappliance’sBTUrequirementby1,000BTUtoget
theappliancesCubicFt.requirement.
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Takeintoaccountthedistancetheapplianceisfromthegas
meter,lookintheabovegascharttoproperlysizetheline.
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Forsectionsofthegaslinesupplyinggastomorethanone
appliance(Ex:PointAtoPointB),addupthecubicft.
requirementsoftheappliancesthatarebeingsuppliedbythat
section,andsizetothefarthestappliance.
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ForExample:ThesectionfromAtoBsuppliesgastothe
furnace,range,anddryer.AddinguptheBTUrequirements
anddividingby1,000yieldsacubicft.requirementof220
cubicft.ofgas.Thefarthestapplianceistherange,whichis50
ft.awayfromthemeter.Lookingattheabovechart,and
underthecolumnof50ft.,SectionAtoBneedstobe 1”in
ordertosupply220cubicft.
10’Length
1”PipeSize
C
GasSizingExample
(NaturalGas)
10’Length
3/4”PipeSize
15’Length
1/2”PipeSize
10’Length
1/2”PipeSize
Furnace
120,000BTU
Water
Heater
199,000BTU
5’Length
1‐1/4”PipeSize
Range
65,000BTU
10’Length
3/4”PipeSize
Dryer
35,000BTU
15’Length
1”PipeSize
5’Length
1‐1/4”PipeSize
GasMeter
B
A