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Plumbing fixtures and trim shall be commercial quality. <br />Water closets: wall hung vitreous china with flush valve <br />Urinals: wall hung vitreous china with flush valve <br />Lavatories: wall mounted vitreous china <br />Misc. sinks: counter mounted stainless steel. <br />Water coolers; wall hung stainless steel handicapped model <br />Provide a domestic hot water circulating pump and a sewage ejector pump. <br />A firm gas meter will be provided. Natural gas will be piped to the desiccant <br />dryer, gas furnaces and water heaters. Natural gas piping material shall be <br />schedule 40 black steel pipe with welded or threaded fittings as required. <br />Furnace, water heater and desiccant dryer breeching shall be single wall <br />galvanized metal and the vertical stack will be double wall class "B" vent. <br />Gas Engine Chiller Option: <br />Electric Chiller Option: <br />Piping: Supply and return fluid headers for both the low temperature glycol <br />and defrost water shall be located in a covered trench at the north end of the <br />Olympic size rink. The ice rink shall have I" pipes on 4" centers The <br />defrosting mat shall have ’* pipe on centers. <br />Belt drive unlity sets shall provide e.xhausl air for toilets. <br />Air filters shall be commercial grade, class 1. 30% efficient to filter all the <br />outside and return air in the air handling unit. <br />Ductwork shall be G90 galvanized steel. All expo.ced ductwork will be <br />round spiral duct. Ductwork in concealed spaces may be rectangular. <br />Provide manual dampers where required for air balancing. Provide fire <br />dampers at all duct penetrations in fire rated building elements. Provioe <br />flexible duct connectors for all fan powered equipment. Provide commercial <br />quality ceiling diffusers, exhaust registers and return grilles. <br />Provide an electric/electronic temperature control system with the following <br />Modulating low leakage outside air and return air dampers for lobby <br />Air handling system to maintain an adjustable mi.xed air tempera­ <br />ture set point when the space is occupied. <br />Provide modulating space thermostats to maintain space temperture <br />setpoints. . <br />Provide a digital time clock to control occupied-unoccupied con­ <br />ditions. Controls shall reset space temperature and close outside air <br />damper*, when unoccupied <br />Testing, adjusting and balancing shall be provided by an AABC certified <br />contractor. <br />PLUMBING FDtTURES <br />PLUMBING PUMPS <br />NATURAL GAS PIPING <br />CHLNLNEYS AND BREECHING <br />REFRIGERATION SYSTE.M <br />EXHAUST <br />AIR nLTERS <br />METAL DUCTWORK AND <br />ACCESSORIES <br />AUTONUTIC CONTROL <br />SYSTEM <br />TESTING AND BALANCING <br />Orono Ice Arena <br />TRA/HGA/KA