Section 3a.161. Modular boilers

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(a) A modular boiler as defined in ASME Code, section IV shall be installed in accordance with § 3a.36 (relating to clearances). The distance between modules may be reduced to the manufacturer’s recommendations if the entire modular boiler system meets the 30-inch clearance requirements.
(b) A modular boiler must have only one inlet and one outlet valve, as required by ASME Code, section IV. The boiler controls must comply with ASME Code, section IV and ASME/CSD1.
(c) Inspection of modular boilers shall be performed in accordance with § 3a.111(1)—(7) (relating to field inspections).

                    
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