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Duct Insulation: <br /> • Ducts in unconditioned spaces are insulated to R-5.Ducts outside the building are insulated to R-8.0. <br /> Duct Construction: <br /> ❑ All joints,seams,and connections are securely fastened with welds,gaskets,mastics(adhesives),mastic-plus-embedded-fabric, <br /> or tapes.Tapes and mastics are rated UL 181A or UL 181 B. <br /> Exceptions: <br /> Continuously welded and locking-type longitudinal joints and seams on ducts operating at less than 2 in.w.g.(500 Pa). <br /> u The HVAC system provides a means for balancing air and water systems. <br /> Temperature Controls: <br /> • Thermostats exist for each separate HVAC system.A manual or automatic means to partially restrict or shut off the heating and/or <br /> cooling input to each zone or floor is provided. <br /> Service Water Heating: <br /> u Water heaters with vertical pipe risers have a heat trap on both the inlet and outlet unless the water heater has an integral heat <br /> trap or is part of a circulating system. <br /> Li Circulating hot water pipes are insulated to the levels in Table 1. <br /> Circulating Hot Water Systems: <br /> ❑ Circulating hot water pipes are insulated to the levels in Table 1. <br /> Swimming Pools: <br /> ❑ All heated swimming pools have an on/off heater switch and a cover unless over 20%of the heating energy is from non-depletable <br /> sources.Pool pumps have a time clock. <br /> Heating and Cooling Piping Insulation: <br /> D HVAC piping conveying fluids above 105 degrees F or chilled fluids below 55 degrees F are insulated to the levels in Table 2. <br /> Orono-4701 WestBranch Page 3 of 4 <br />