Loading...
Specifications (2) MECHANICAL SPECIFICATIONS PROJECT: Tetra Plastics Facility 15605 S.W. 72nd Ave. Tigard, Oregon Ventilation All rooftop equipment to be equipped with outside air economizers to provide 20 cfm of outside air for each occupant during occupied hours. Controls Rooftop AC units to be controlled by programmable thermostats located in the space served. Thermostats to provide for unoccupied hour cooling setup and heating setback. Units that exceed 2000 cfm of air delivery will be equipped with return air smoke detectors to provide automatic shutdown if smoke is present. Equipment Identification All rooftop units and gas meter to be permanently identified as to space served. Restroom Exhaust Restrooms to be provided with exhaust fans to provide in excess of 4 air changes per hour for room ventilation. Fans to discharge at roof at least 10 feet from nearest rooftop unit fresh air hood. Fans to be controlled by switches at room entry. Gas Piping All piping material to be new and of the appropriate construction for use on 2 psi gas system. Connections at units to include AGA rated shutoff cocks and regulators if required by the equipment. Equipment All equipment to meet the applicable required codes including UL /CSA listing and AGA rating for gas fired equipment. Heating equipment to be provided with automatic controls to shut off the fuel supply in the event of pilot or ignition failure. Electrical All roof mounted equipment to be provided wth disconnects and have a 120 volt receptacle within 25 feet. Low voltage wiring shall be installed in a manner to prevent physical damage. Y 1 EQUIPMENT SCHEDULE TAG RTU -5 Trane TCD075C4 Nominal 6 1/4 ton Cooling: 75,000 BTUH, 2500 cfm, EER = 9.0 Heating: 18 KW Electrical: 460/60/3, 18.0 MCA Weight: 750 pounds Accessories: Economizer, roof curb, smoke detector