American Water Heater 520 Spécifications télécharger pdf (Page 18)

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



BasedonEnergyContentof1,000BTU/CubicFt.:Thewaterheaterrequires199CubicFt./hrforthe520(T‐H2)

models,and180CubicFt./hrforthe320(T‐H2S)models.

Unit:CubicFeetperHour

PipeSize Length

Diameter 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)GasSupplyPiping‐

MaximumCapacityofPropane(LP)GasBasedon11”WCsupplypressureata0.5”WCpressuredrop

Unit:kBTUperHour

PipeSize

Length

Diameter

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nextpage.



BasedonEnergyContentof1,000BTU/CubicFt:



Divideeachappliance’sBTUrequirementby1,000BTUtoget

theappliancesCubicFt.requirement.



Takeintoaccountthedistancetheapplianceisfromthegas

meter,lookintheabovegascharttoproperlysizetheline.



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.



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.

Range

65,000BTU

10’Length

1”PipeSize

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

5’Length

1‐1/4”PipeSize

10’Length

3/4”PipeSize

Dryer

35,000BTU

15’Length

1”PipeSize

5’Length

1‐1/4”PipeSize

GasMeter

199,000BTU

or

180,000BTU

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American Water Heater 520 Spécifications Page 18

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