Natural gas may contain some propane. Pro- pane, being an excellent solvent, will quickly dissolve white lead or most standard commer- cial compounds. Therefore, a special pipe compound must be applied when wrought iron or steel pipe is used. Shellac base compounds such as Gaskolac or Stalastic, and compounds such as Rectorseal #5, Clyde's or John Crane may be used.
4.All piping should be cleaned of dirt and scale by hammering on the outside of the pipe and blowing out the loose dirt and scale. Before initial
5.The gas supply should be a separate line and installed in accordance with all safety codes as prescribed under "Limitations". After the gas con- nections have been completed, open the main
FIRE OR EXPLOSION HAZARD
FAILURE TO FOLLOW THE SAFETY WARN- ING EXACTLY COULD RESULT IN SERIOUS INJURY, DEATH OR PROPERTY DAMAGE.
NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME. USE A COMMERICALLY AVAILABLE SOAP SOLUTION MADE SPE- CIFICALLY FOR THE DETECTION OF LEAKS TO CHECK ALL CONNECTIONS. A FIRE OR EXPLOSION MAY RESULT CAUS- ING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
6.The furnace and its individual manual
The furnace must be isolated from the gas supply piping system by closing its individual manual shut- off valve during any pressure testing of the gas
supply piping system at test pressures equal to or less than 1/2 psig (3.48kPa).
7.A 1/8 inch NPT plugged tap, accessible for test gage connection, must be installed immediately upstream of the gas supply connection to the fur- nace.
FIGURE 6 - EXTERNAL SUPPLY CONNECTION
EXTERNAL SHUT-OFF
FIGURE 7 - BOTTOM SUPPLY CONNECTION
EXTERNAL SHUT-OFF
L.P. UNITS, TANKS AND PIPING
All gas heat units are shipped from the factory equipped for natural gas use only. The unit may be converted in the field for use with L.P./propane gas with accessory kit model number 1NP0418.
All L.P./propane gas equipment must conform to the safety standards of the National Fire Protection Associ- ation.
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