10
Table 5: Specifi c Gravity Correction Factors
C. Pressure test. The boiler and its gas connection must be
leak tested before placing boiler in operation.
1. Protect boiler gas control valve. For all testing over
½ psig, boiler and its individual shutoff valve must
be disconnected from gas supply piping. For testing
at ½ psig or less, isolate boiler from gas supply
piping by closing boiler's individual manual shutoff
valve.
Figure 8: Recommended Gas Piping
ECITON
neebevahlevelaesevobateef000,2nahtretaergsedutitlatanoitallatsniroftliubsreliobASU
ehtreplevelaesevobateef000,1reptnecrep4etartupnisagecuderotdecifiroyllaiceps
ecifiro'sreliobnaidanaC.FxidneppAdna2.1.8noi
tceS,1.322ZISNA,edoCsaGleuFlanoitaN
ledomehtybelbaifitnedierasledomreliobedutitlahgiH.lebalgnitarehtnodetacidnisignizis
.lebalgnitarehtno"H"xiffusrebmun
Table 4: Fitting Equivalent Lengths
gnittiF eziSepiPlanimoN
½¾ 1 ¼1
llE°547.012.16.1
llE°096.11.26.25.3
)woblEsA(eeT1.31.42.59.6
cificepS
ytivarG
noitcerroC
rotcaF
cificepS
ytivarG
noitcerroC
rotcaF
05.001.103.170.1
55.040.104.140.1
06.000.105.100.1
56.069.006.179.0
07.039.007.149.0
57.009.0
08.078.0
2. Locate leaks using approved combustible gas
detector, soap and water, or similar nonfl ammable
solution. Do not use matches, candles, open fl ames,
or other ignition source.