R20-5-412
R20-5-412. Automatic Low-water Fuel Cutoff Devices or Combined Water Feeding and Fuel Cutoff Devices
Cite as Ariz. Admin. Code § R20-5-412
A. An Owner, Operator, or User shall ensure that low-water fuel cutoff devices or combined water feeding and fuel cutoff devices do not interfere with an Operator’s or Authorized Inspector’s ability to safely clean, repair, or inspect a Boiler, Lined Hot Water Heater, or Pressure Vessel. B. A low-water fuel cutoff device shall have a pressure rating not less than the set pressure of the Safety Valve or Safety Relief Valve. C. In addition to the requirements of subsections (A) and (B), all low-water fuel cutoffs and flow sensing devices shall be constructed and installed in accordance with applicable ASME Code and standards for Boilers and Direct Fired Jacketed Steam Kettle in R20-5-404(A).