In-station Air Fill Station and Compressor to Be Installed at the District No. 6

The Fill Station and Compressor including the compressor's enclosure, CO monitor, pump, and purification system must all be of the same manufacturer to ensure consistency and optimal performance. Compressor: The compressor shall be made in the United States of America. Enclosure, CO monitor, pump, and purification system must all be of the same manufacturer to ensure consistency and optimal performance. The compressor shall have a maximum working pressure of no less than 6000 PSI and a minimum charge rate of no less than 14 CFM. The compressor shall be air-cooled and oil lubricated, of a 4-stage reciprocating design. The crankshaft shall be supported at both ends by high performance ball or roller bearings. The final stage piston must be of a ringed design. Each cylinder shall be directly bathed with cooling air from the compressor's integrated cooling fan. An intercooler shall be present between each stage of the compressor and an aftercooler after the final stage of compression. A cool-down cycle shall not be required prior to stopping to compressor. Moisture separators shall be present after each stage of compression with the exception of the first compression stage. The compressor shall be equipped with an automatic condensate drain system. The automatic drain system shall drain the accumulated moisture from each moisture separator at a preset interval specified by the manufacturer. An exhaust muffler and condensate reservoir shall be supplied for the automatic drain system. The compressor shall be oil lubricated and have a crankcase oil capacity of no less than 3 quarts. A highly visible sight glass shall be included to check the oil level. The compressor shall include a replaceable inlet particulate filter element. The compressor shall be powered by a three-phase electric motor with a minimum rating of 10 HP. The compressor block and electric motor shall be vibration isolated from the compressor's frame. Power from the motor shall be transmitted to the compressor by means of a v-belt drive system. Compressor and motor shall be mounted in a vertical configuration. The compressor shall be equipped with the following controls: Magnetic contactor with thermal overload Push button start / stop switches Pressure stop switch electronic carbon monoxide monitor The compressor shall be equipped with the following gauges / indicators: Liquid filled pressure gauge after each stage of compression Non-resettable hour meter Digital carbon monoxide level display The compressor shall be equipped with a purification system that will provide CGA Grade E breathing air. The purification system must have a working pressure of 6000 PSI. The system shall feature replaceable filter cartridges that are capable of filtering 24,000 Cu Ft of air @ 80 F before requiring replacement. A back-pressure regulator shall be installed downstream of the purification system to maintain positive pressure in the purification housing. The compressor shall be installed in an enclosed sound suppressing cabinet. Cabinet will have lift off panels for ease of accessing the compressor and components for service and/or maintenance. Cabinet will include labels designating the function of all mounted gauges and controls. Cabinet will be mounted on adjustable rubberized feet. Cabinet shall have a foot print no greater than 36" by 24". CO Monitor: The CO Monitor shall be made in the United States of America. Shall consist of modular construction to facilitate maintenance and repair. Shall continuously monitor air quality and arrest system operation if CO levels exceed safe operating levels per NFPA standards. Shall require once annual recalibration as opposed to once monthly recalibration. Containment Fill Station Specification for containment fill station with control panel. The Fill Station must be made in the United States of America. The fill station shall be designed for a maximum input pressure of 6000 PSI. The fill station shall be constructed of 1/4" steel plate and steel tube fill pockets. Fill station shall be finished with an exceptionally durable powder coat. The fill station shall fully enclose three SCBA or SCUBA cylinders while being filled. Venting shall be provided to allow air from a ruptured cylinder to escape the fill station while being directed away from the fill station operator. The fill station door shall utilize gas shocks to allow opening and closing with minimal operator effort. A safety interlock shall be provided that will prevent refilling of cylinders unless the fill station door is securely closed and latched. The latching mechanism shall provide the user with optional manual lockout capabilities. Two fill hoses shall be located within the fill station. Each hose shall have a bleed valve and a fill adapter of the buyer's choice. The fill station shall be tested and certified to at least 5700 PSI burst pressure by an independent third party. The fill station shall meet and exceed the standards and requirements set forth by NFPA 1901- 2016. Control Panel The CO Monitor shall be made in the United States of America. The fill station shall be equipped with a cascade control panel that provides the following standard features: 4 Cascade bank controls valves Dual High-Pressure Aluminum Manifolds 4 Cascade bank pressure gauges 2 1/2" liquid filled Adjustable fill pressure regulator Pressure regulator input and output gauges 2 1/2" liquid filled 3-cylinder fill valves 3 Fill pressure gauges 2 1/2" liquid filled 1 regulated auxiliary fill valve

Division 23 -

Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment.