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Section 1005 Boiler Connections
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Every boiler or modular boiler shall have a shutoff valve in the supply and return piping. For multiple boiler or multiple modular boiler installations, each boiler or modular boiler shall have individual shutoff valves in the supply and return piping.
Exception: Shutoff valves are not required in a system having a single low-pressure steam boiler.
The water supply to all boilers shall be connected in accordance with the International Plumbing Code.
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