18-16   Pilot Burners; Safety Shutoff Devices
   A.   All residential and commercial heating equipment with inputs less than 400,000 BTUH shall be equipped with a pilot burner and safety shutoff device. In the event of ignition device failure or pilot outage, complete shutoff of the gas to both the main burner and pilot burner shall take place. The combined time required for the safety shutoff device and the automatic valve to shutoff the gas supply shall not exceed 3 minutes. On heating equipment approved only for outdoor installation, the safety shutoff device need not cause shutoff of the pilot gas.
   B.   All heating equipment with rated inputs between 400,000 and 6,000,000 BTUH must have approved electronic type safety shutoff devices. The response time of the primary safety control to de-energize or activate the gas shutoff device shall not be more than four seconds. The pilot flame-establishing period for expanding, intermittent and interrupted pilots shall not be more than 15 seconds. Gas to such pilots shall be automatically shut off if the pilot fails to ignite. Inputs 2,000,000 BTUH or above shall be equipped with both a solenoid valve and a motorized valve.
(Amended by Ordinance No. 9117, effective 05-29-2007)