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Standard Development Activity:
- Proceeding to development
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1.1 These requirements apply to factory-built gas-fired package boilers having input ratings of more than 117,228 W (400,000 Btu/h), per individual combustion chamber, and intended primarily for commercial and industrial installation.
1.2 These requirements also apply to all high pressure steam and high temperature water gas-fired boiler assemblies regardless of kW (Btu/h) input.
1.3 Package boilers covered by these requirements are designed to be automatically operated without a competent attendant being constantly on duty at the burners while the appliances are in operation.
1.4 Additional installation and operation requirements are available for commercial-industrial gas-fired packaged boilers as defined by:
a) In the United States, the National Fuel Gas Code, NFPA 54, and the Liquefied Petroleum Gas Code, NFPA 58, as applicable; or
b) In Canada, the Natural gas and propane installation code, CSA B149.1, and the Code for the field approval of fuel-related components on appliances and equipment, CSA B149.3, as applicable.