Section 3a.166. Miniature boilers and kitchen equipment

(a) A miniature boiler must be manufactured under the ASME ‘‘S,’’ ‘‘H’’ or ‘‘M’’ Code. A boiler manufactured under ASME ‘‘S’’ and ‘‘H’’ Code must be stamped with a National Board registration number.

(b) Clearance requirements contained in § 3a.36 (relating to clearances) do not govern a miniature boiler or kitchen equipment if all pressure containing parts with appurtenances are visible for inspection.

(c) Miniature boiler controls must comply with ASME/CSD1.

(d) The sight glass and pressure gauge of a miniature boiler installed in a cabinet must always be visible during operation.

(e) Discharge from safety valves must be piped to a safe point.

(f) Burners for gas-fired installations must be AGA approved.

(g) Inspection of miniature boilers and kitchen equipment shall be performed in accordance with § 3a.111(1)—(6) (relating to field inspections).