7 Gas connections
Connecting gas supply piping
1.Remove the front access panel and refer to FIG.
a.Install a field supplied sediment trap / drip leg upstream of the boiler gas controls.
Figure 7-1 Gas Supply Piping
Installation & Operation Manual
2.Support piping with hangers, not by the boiler or its accessories.
WARNING The gas valve and blower will not support the weight of the piping. Do not attempt
to support the weight of the piping with the boiler or its accessories. Failure to comply could result in severe personal injury, death, or substantial property damage.
MANUAL SHUTOFF VALVE (FIELD SUPPLIED)
GAS SUPPLY 
UNION
DRIP LEG
3.Purge all air from the gas supply piping.
4.Before placing the boiler in operation, check the boiler and its gas connection for leaks.
a.Close manual main shutoff valve during any pressure testing at less than 13 inches w.c.
b.Disconnect the boiler and gas valve from the gas supply piping during any pressure testing greater than 13 inches w.c.
WARNING Do not check for gas leaks with an open flame – use the bubble test. Failure to
use the bubble test or check for gas leaks can cause severe personal injury, death, or substantial property damage.
5.Use pipe sealing compound compatible with propane gases. Apply sparingly only to male threads of the pipe joints so that pipe dope does not block gas flow.
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