5 GAS-FIRED WATER BOILER SERIES 2 — Boiler Manual
Gas piping
Connecting gas supply piping
1.Remove jacket front panel and refer to Figure 15 to pipe gas to boiler.
a.Install ground joint union for servicing, when required.
b.Install manual shutoff valve in gas supply piping outside boiler jacket when required by local codes or utility requirements.
c.In Canada — When using manual main shutoff valve, it must be identified by the installer.
2.
a.Refer to separate Ultra Boiler
b.Gas connection may enter from the bottom of boiler as explained in the
4.Purge all air from gas supply piping.
5.Before placing boiler in operation, check boiler and its gas connection for leaks.
a.Close manual main shutoff valve during any pressure testing at less than 13" w.c.
b.Disconnect boiler and gas valve from gas supply piping during any pressure testing greater than 13" w.c.
Do not check for gas leaks with an open flame — use bubble test. Failure to use bubble test or check for gas leaks can cause severe personal injury, death or substantial property damage.
3.Support piping with hangers, not by boiler or its accessories.
6.Use pipe dope compatible with propane gases. Apply sparingly only to male threads of pipe joints so that pipe dope does not block gas flow.
Failure to apply pipe dope as detailed above
Figure 15 Connect gas supply pipingcan result in severe personal injury, death or substantial property damage.
DO NOT adjust or attempt to measure gas valve outlet pressure. The gas valve is
Ultra boilers are shipped ready to fire natural gas ONLY. (Exception:
Use two wrenches when tightening gas piping at boiler, using one wrench to prevent the boiler gas line connection from turning. Failure to support the boiler gas connection pipe to prevent it from turning could damage gas line components.
Part number | 21 |