Jacuzzi J-SP180W User Manual


 JacuzziSignatureWaterHeatersJ‐S180/J‐S199 19
Sizethegaspipe
Thegassupplymustbecapableofhandlingtheenre
gasloadatthelocaon.Gaslinesizingisbasedon
gastype,thepressuredropinthesystem,thegas
pressuresupplied,andgaslinetype.Forgaspipesiz‐
ingintheUnitedStates,refertothe
Naonal Fuel Gas
Code, NFPA 54.Thebelowinformaonisprovidedas
anexample.Theappropriatetablefromtheapplica‐
blecodemustbeused .
1. Forsometables,youwillneedtodeterminethe
cubicfeetperhourofgasrequiredbydividingthe
gasinputbytheheangvalueofthegas
(availablefromthelocalgascompany).Thegas
inputneedstoincludeallgasproductsat
thelo‐
caonandthemaximumBTUusageatfullload
whenallgasproductsareinuse.
2. Usethetableforyourgastypeandpipetypeto
findthepipesizerequired. Thepipesizemustbe
abletoprovidetherequiredcubicfeetperhour

ofgasortherequiredBTU/hour.
Example:
Theheangvalueofnaturalgasforyourlocaonis
1000BTU/FT
3
.ThegasinputoftheJ‐SN199Fis
199,000BTU/HR.Addionalappliancesattheloca‐
onrequire65,000BTU/hr.Thereforethecubicfeet
perhour=(199,000+65,000)/1000=264FT
3
/HR.If
thepipelengthis10feetthenthe3/4inchpipesizeis
capableofsupplying264FT
3
/HRofnaturalgas.
GasInputofallgasproducts(BTU/HR)
HeangValueofGas(BTU/FT
3
)
CubicFeet
perHour=
(CFH)
• Anycompoundusedonthethreadedjointofthe
gaspipingshallbeatypewhichresiststheacon
ofliquefiedpetroleumgas(propane/LPG).
• Thegassupplylineshallbegasght,sized,andso
installedastoprovideasupplyofgassufficientto
meetthemaximumdemandoftheheaterandall
othergasconsumingappliancesatthelocaon
withoutlossofpressure.
INFORMATION
• Refertoanapprovedpipesizingchartifindoubt
aboutthesizeofthegasline.
Length
PipeSize(inches)
3/4 1 11/4 11/2
10 273 514 1060 1580
20 188 353 726 1090
30 151 284 583 873
40 129 243 499 747
50 114 215 442
 662
60 104 195 400 600
70 95 179 368 552
80 89 167 343 514
90 83 157 322 482
100 79 148 304 455
PipeSizingTable‐NaturalGas
InletPressure: lessthan2psi(55inchesW.C.)
PressureDrop: 0.3inchesW.C.
SpecificGravity: 0.60
Schedule40MetallicPipe
cubicfeetperhour
Length
PipeSize(inches)
1/2 3/4 1 11/4
10 291 608 1150 2350
20 200 418 787 1620
30 160 336 632 1300
40 137 287 541 1110
50 122 255 480 985
60 110 231 434 892
80 101 212 400 821
100 94 197 372 763
PipeSizingTable‐PropaneGas
InletPressure: 11.0inchesW.C.
PressureDrop: 0.5inchesW.C.
SpecificGravity: 1.50
Schedule40MetallicPipe
CapacityinThousandsofBTUperHour

Jacuzzi J-SP180W Specifications

General

Brand	Jacuzzi
Model	J-SP180W
Category	Water Heater
Language	English