A permit is required to compress a flammable gas, including piped natural gas, to a pressure exceeding 6 psig (41.4 Kpa).
Microturbine systems utilize natural gas at an inlet pressure to the system of not greater than 3 psig, and boost the gas pressure to an inlet pressure to the combustion device of greater than 15 psig within the unit or a room enclosure.
A FDNY inspector will visit the premise annually and perform an inspection prior to permit expiration
G-92 Certificate of Fitness for the Supervision of High-Pressure
Natural Gas Fired Microturbine Systems
(*For 24 hour operations, such as hotels, a minimum of three certificate of fitness holders are required)
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