Briggs & Stratton 1679-0 Installation Manual download pdf (Page 9)

Bri_,_s& Stratton Power Products Home Generator System

Installation Manual

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Fuel Consumption

See Figure 8 for fuel supply requirements at half and full

load for both natural gas and LPvapor.

Model Natural Gas* LP Vapor **

I/2 Full 1/2 Load Full Load

Load Load

1679-0 100.8 177.9 1.16/42.21 2.15/78.24

* = Natural Gas is in cubic feet per hour

** = LPVapor is in gallons per hour/cubic feet per hour

Fuel Pipe Sizing

Figures 9 and 10provide the maximum capacity of pipe in

cubic feet of gas per hour for gas pressures of 0.5 psi or

less and a pressure drop of 0.3 in. water column. Specific

gravity of gas is shown.This information is based on data

found in Chapter 9 of NFPA Publication 54.

Listed values compensate for a nominal amount of

restriction from bends,fittings, etc. If an unusual number of

fittings, bends,or other restrictions are used,please refer

to NFPA Publication 54.

½" 168 146 115 93 79 70 63 59 55 51 48

¾" 346 293 240 192 163 145 132 120 113 106 99

I" 653 549 446 360 307 274 250 230 211 197 187

N_ural Gas(sg=0.65) Modet1679-0requi_s177.9 CFH _"FullLoad"

I_llcm Ilo_ ,._I.IJ:_;II_I)]_I_/;,D]!:LIJ_I_I._i) _ [e7..!,,']_l_l"_l."_"/_, [l'l_ lll'//_ _l'lll'._iTIE1b'_l_l'lll;_llll'/J1g

NPT 10_ 15_ 20_ 30_ 40_ 50_ 60_ 70_ 80_ 90_ 100_

½" II0 96 76 61 52 46 42 38 36 33 32

¾" 277 192 158 126 107 95 87 79 74 69 65

I" 428 360 293 236 202 180 164 151 139 129 123

Liquefied Petroleum (LP) (sg=l.50) Model 1679-0 requires 78.24 CFH at"Full Load"

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 59 60

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Briggs & Stratton 1679-0 Installation Manual Page 9