Fla. Admin. Code Ann. R. 69A-51.065 - Requirements for Existing Boiler Installations

(1) Standard boilers. The maximum allowable working pressure must not exceed the pressure indicated by the manufacturer, either stamped or cast on the boiler or on a plate secured to it.

(2) Non-standard riveted boilers. The maximum allowable working pressure on the shell of a non-standard riveted heating boiler must be determined in accordance with the National Board Inspection Code, which is incorporated by reference in Rule 69A-51.010, F.A.C., except that:

(a) The maximum allowable working pressure of a steam heating boiler must not exceed 15 psig; and,

(b) The maximum allowable working pressure of a hot water heating boiler must not exceed 160 psig nor the temperature exceed 250º F.

(3) Non-standard welded boilers. The maximum allowable working pressure of non-standard steel or wrought iron heating boilers of welded construction must not exceed 15 psig for steam. For other than steam service, the maximum allowable working pressure must be calculated in accordance with Section IV of the ASME Code, which is incorporated by reference in Rule 69A-51.010, F.A.C.

(4) Non-standard cast iron boilers. The maximum allowable working pressure of a non-standard boiler composed principally of cast iron must not exceed 15 psig for steam service or 30 psig for hot water service. The maximum allowable working pressure of a non-standard boiler having a cast iron shell or heads and steel or wrought iron tubes must not exceed 15 psig for steam service or 30 psig for hot water service.

(5) Parts and appurtenances. All parts and appurtenances attached to low pressure heating and hot water supply boilers that come under these this rule chapter must conform to the requirements of the ASME Code and the National Board Inspection Code, which are incorporated by reference in Rule 69A-51.010, F.A.C., and must include safety valves, safety relief valves, steam gauges, pressure or altitude gauges, water gauge glasses, stop and check valves, feed water connections and return pumps.

(6) Automatic low water fuel cutoff and/or water feeding device.

(a) Each automatically fired steam boiler must have an automatic low water fuel cutoff so located as to automatically cut off the fuel supply when the surface of the water falls to the lowest visible part of the water gauge glass. If a water feeding device is installed, it must be so constructed that the water inlet valve cannot feed water into the boiler through the float chamber and so located as to supply requisite feedwater. Such a fuel cutoff or water feeding device must comply with Section IV, Part HG; Article 6, HG-606, Automatic Low-Water Fuel Cutoff and/or Water Feeding Device, of the ASME Code, which is incorporated by reference in Rule 69A-51.010, F.A.C.

(b) Each automatically fired hot water heating boiler with heat input greater than 400,000 BTU/HR must have an automatic low water fuel cutoff which has been designed for hot water service, and it must be located so as to automatically cut off the fuel supply when the surface of the water falls to the lowest safe water level established by the boiler manufacturer. Such low water fuel cutoff must comply with Section IV, Part HG, Article 6, HG-614, Low-Water Fuel Cutoff, of the ASME Code, which is incorporated by reference in Rule 69A-51.010, F.A.C.

(7) Repairs and renewals of fittings and appliances. Whenever repairs are made to fittings or appliances, or it becomes necessary to replace them, the repairs must comply with Section IV of the ASME Code for new construction, which is incorporated by reference in Rule 69A-51.010, F.A.C.

Notes

Fla. Admin. Code Ann. R. 69A-51.065

Rulemaking Authority 554.103, 554.108(6) FS. Law Implemented 554.103, 554.108 FS.

New 2-27-89, Formerly 4A-51.065, Amended by Florida Register Volume 47, Number 144, July 27, 2021 effective 8/10/2021.

New 2-27-89, Formerly 4A-51.065, Amended 8-10-21.