HAR §12-222.1-11. (e) Fuel

Fuel systems, whether firing coal, oil, gas, or other substance, shall be installed in accordance with departmental, environmental requirements, manufacturer's recommendations, and industry standards, as applicable. (f) Ventilation and combustion air. The following shall apply to ventilation and combustion air: (1) The equipment room shall have an adequate air to permit clean, safe combustion, minimize soot formation, and maintain a minimum of nineteen and a half per cent (19.5%) oxygen in the air of the equipment room and sufficient to maintain ambient temperatures as recommended by the boiler manufacturer. The combustion and ventilation air should be supplied by either an unobstructed air opening or by power ventilation or fans; (2) When combustion air is supplied to the boiler, heater, or vessel by an independent duct, with or without the employment of power ventilators or fans, the duct shall be sized and installed in accordance with the manufacturer's recommendations provided that ventilation for the equipment room must still be considered; (3) Unobstructed air openings shall be sized based on the manufacturer's recommendations, or as specified by the National Fire Protection Association (NFPA) standards for oil and gas burning installations for the particular job conditions, or 1 square inch free area per 2000 Btu/hr maximum fuel input of the combined burners located in the equipment room. The equipment room supply openings shall be kept clear at all times; (4) Power ventilators or fans shall be sized on the basis of 0.2 cfm for each 1000 Btu/hr of maximum fuel input for the combined burners of all boilers and heaters located in the equipment room. Additional capacity may be required for other fuel burning equipment in the equipment room; (5) When power ventilators or fans are used to supply combustion air, they shall be installed 222.1-38 3559 §12-222.1-11 with interlock devices so that burners will not operate without an adequate number of ventilators or fans in operation; (6) The size of openings specified in subsection (c) may be reduced when special engineered air supply systems approved by the department are used; and (7) Care shall be taken to ensure that steam, water, and fluid lines are not routed across combustion air openings, where freezing may occur. (g) Lighting. The equipment room shall be well lit and have an emergency light source for use in case of power failure. (h) Chimneys or stacks shall be installed in accordance with jurisdictional, environmental requirements, manufacturer's recommendations, and industry standards, as applicable. (i) Ash removal systems shall be installed in accordance with jurisdictional, environmental requirements, manufacturer's recommendations, and industry standards, as applicable. (j) Carbon monoxide (CO) detector/alarm. The owner or user shall install a carbon monoxide detector/alarm in equipment rooms where fuel fired boilers or fuel fired pressure vessels are located, in accordance with manufacturer's recommendation, and industry standards, as applicable. (k) Water (cleaning). A convenient water supply shall be provided for flushing out the boiler and its appurtenances, adding water to the boiler while it is not under pressure, and cleaning the equipment room floor. (l) Final acceptance. A power boiler may not be placed into service until its installation has been inspected and accepted by the department. [Eff and comp 12/21/19; am and comp SEP - 9 2024 ] (Auth: HRS §397-4) (Imp: HRS §397-4) ###