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1.8 GENERAL PRODUCT REQUIREMENTS A. Sufficient access shall be provided to perform major work on the equipment, including the removal of driver. All electric panels shall have the necessary clearances in front of openings as required by code. Sufficient access may be provided by removal of all or part of the enclosure. B. System shall be sized to provide the total specified gas flow with a single compressor. C. All furnished equipment shall be new. All equipment shall comply with all provisions of this specification including warranty requirements. D. The skid assembly shall comply with design requirements of appropriate sections of CBC. E. The skids shall have bolt holes to facilitate mounting of anchor bolts to a concrete foundation, and provisions for lifting. F. Structural steel skids shall be of welded construction. G. INSTRUMENTATION AND CONTROLS 1. Pressure Gauges: • All gauges shall read at least 1.2 times the system design pressure (NFPA 52). • Accuracy, including hysteresis, shall± 1.5% of full scale or better. • Rear blowout protection shall be provided. • All gauges shall be waterproof and oil -filled. • The dial shall have a minimum diameter of 2-1/2 inches. 2. Temperature Gauges (not required if RTDs or TCs are into PLC's HMI): • Accuracy shall be within 1 % of the full scale or better. • The Dial shall have a minimum diameter of 2-1/2 inches. 3. All instrument components interfacing with natural gas shall be made of material compatible with odorized natural gas. No copper metal or alloys containing more than 70% copper shall be used in natural gas service. 4. All gauges and frequently operated manual valves shall be located no higher than seven (7) feet above grade and shall be easily operable and viewable. H. PIPING/ TUBING City of Santa Ana - RFP 20-095 CNG Fuel Station: Design, Build, Operate and Maintain 16