3
Figure 1: Gun Assemblies View
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2.1.1 The installer should contact the local gas utility for information related to available supply pressures,
limitations on allowable pressures in the building, general piping requirements and applicable codes,
restrictions and regulations. Considerations of these types, as well as written permits and other state, city
and local codes should be discussed with and approved by the appropriate governing bodies.
2.1.2 Gas piping should be sized to provide the required pressure at the burner train inlet manual shutoff cock,
when operating at the maximum desired fuel input.
2.1.3 All gas piping should be appropriately pressure tested to ensure leak free operation. It is recommended
that a dirt pocket or trap be piped into the gas supply system just ahead of the burner train inlet manual
shutoff cock.
2.1.4 When testing with pressures higher than the maximum pressure ratings of the gas train components, be
sure to isolate these components and test their piping for gas leaks with correct pressures only.
2.1.5 Refer to Table 1 and 2 for information relating to the sizing of gas supply piping. These charts are based
on the general flow characteristics of commercially produced black carbon steel pipe. If in doubt
Summary of Contents for UCM-1000
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