Gas piping
Connecting gas supply piping
1. Remove jacket front panel and refer to Figure 13 to | 3. Support piping with hangers, not by boiler or its | |||||||||
pipe gas to boiler. | accessories. | |||||||||
a. Install ground joint union for servicing, when | 4. Purge all air from gas supply piping. | |||||||||
required. | 5. Before placing boiler in operation, check boiler and | |||||||||
b. Install manual shutoff valve in gas supply pip- | ||||||||||
its gas connection for leaks. | ||||||||||
ing outside boiler jacket when required by lo- | a. Close manual main shutoff valve during any | |||||||||
cal codes or utility requirements. | ||||||||||
pressure testing at less than 13" w.c. | ||||||||||
c. In Canada — When using manual main shut- | ||||||||||
b. Disconnect boiler and gas valve from gas sup- | ||||||||||
off valve, it must be identified by the installer. | ||||||||||
ply piping during any pressure testing greater | ||||||||||
2. | ||||||||||
than 13" w.c. | ||||||||||
a. Refer to separate Ultra Boiler |
| Do not check for gas leaks with an open | ||||||||
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instructions. |
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| flame — use bubble test. Failure to use | |||||||||
b. Gas connection may enter from the bottom of |
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| bubble test or check for gas leaks can cause | |||||||||
boiler as explained in the |
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| severe personal injury, death or | |||||||||
structions. |
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| substantial property damage. | |||||||||
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| 6. Use pipe dope compatible with propane gases. | ||
Figure 13 Connecting gas supply piping | Apply sparingly only to male threads of pipe joints | |||||||||
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| so that pipe dope does not block gas flow. | ||
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| Failure to apply pipe dope as detailed | |
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| above can result in severe personal injury, | |
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| death or substantial property damage. | |
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| DO NOT adjust or attempt to measure | |
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| gas valve outlet pressure. The gas valve is | |
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| This setting is suitable for natural gas and | |
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| propane, requiring no field adjustment. | |
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| Attempting to alter or measure the gas | |
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| valve outlet pressure could result in | |
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| damage to the valve, causing potential | |
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| severe personal injury, death or | |
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| substantial property damage. | |
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| Ultra boilers are shipped ready to fire | |
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| natural gas ONLY. You must install the | |
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| propane orifice if the boiler will be | |
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| connected to propane. Failure to comply | |
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| could result in severe personal injury, death | |
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| or substantial property damage. | |
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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 components.
14 | Part number |
