Section Env-A 1311.04 - Control Requirements for Stationary Internal Combustion Engines Having Manual Adjustment CapabilitiesThe owner or operator of a stationary internal combustion engine that is used as an emergency generator and that allows for manual adjustment of the air-to-fuel ratio or ignition timing in order to affect the combustion process, shall:
(a) Set and maintain the ignition timing of the engine 4 degrees retarded relative to standard timing, provided that the ignition timing shall not be retarded beyond the point that:(1) The CO emission concentration increases beyond 100 ppmv;(2) The turbocharger speed is increased beyond the maximum operating speed recommended by the manufacturer;(3) The exhaust port temperature increases beyond the manufacturer's recommended maximum operating temperature; or(4) The opacity of the emissions from the engine exhaust is equal to or greater than 20% opacity;(b) Install, operate, and maintain an elapsed time meter for each engine to indicate, in cumulative hours, the elapsed engine operating time for the previous 12 months;(c) Determine the hours of operation for each engine for the previous 12-month period on a monthly basis; and(d) Maintain records to certify that the ignition timing of the engine has been inspected and adjusted at least once every 3 years.N.H. Code Admin. R. Env-A 1311.04
(See Revision Note at chapter heading for Env-A 1300) #9803, eff 10-31-10
Amended by Volume XXXVIII Number 32, Filed August 9, 2018, Proposed by #12584, Effective 8/15/2018, Expires 8/15/2028.