York DNH018 Installation Manual

Also see for CHAMPION PLUS DNH018: Technical guide

York DNH018 Installation Manual Manual pdf 10 page image

66324-YIM-B-100410 Unitary Products Group.iFIGURE 5 - EXTERNAL SUPPLY CONNECTIONEXTERNAL SHUT-OFFTABLE 5: NATURAL GAS PIPE SIZING CHART 11. Maximum capacity of pipe in cubic feet of gas per hour (basedupon a pressure drop of 0.3 inch water column and 0.6 specificgravity gas).LENGTHIN FEETNOMINAL INCHES IRON PIPE SIZE1/2” 3/4” 1” 1-1/4”10 132 278 520 1,05020 92 190 350 73030 73 152 285 59040 63 130 245 50050 56 115 215 44060 50 105 195 40070 46 96 180 37080 43 90 170 35090 40 84 160 320100 38 79 150 3051/2x1/2GASCOCK1/2x1/2UNIONAUTOMATICGASVALVEDRIPLEG1/2-14NPTTABLE 6: PROPANE (LP) GAS PIPE SIZINGCHART 11. Maximum capacity of pipe in thousands of BTU per hour (basedupon a pressure drop of 0.5 inch water column).LENGTHIN FEETNOMINAL INCHES IRON PIPE SIZE1/2” 3/4” 1” 1-1/4”10 275 567 1,071 2,20520 189 393 732 1,49630 152 315 590 1,21240 129 267 504 1,03950 114 237 448 91360 103 217 409 83470 96 196 378 77180 89 185 346 72490 83 173 322 677100 78 162 307 630If flexible stainless steel tubing is allowed by theauthority having jurisdiction, wrought iron or steelpipe must be installed at the gas valve and extenda minimum of two (2) inches outside of the unitcasing.Natural gas may contain some propane. Propanebeing a excellent solvent, will quickly dissolvewhite lead or most standard commercial com-pounds. Therefore, a special pipe dope must beapplied when wrought iron or steel pipe is used.Shellac base compounds such as gaskoloc or sta-lastic, and compounds such as rectorseal # 5,Clyde’s or John Crane may be used.