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` ^ ' ^ . . FORMR4O5-2014 �� U��'~—��[�DUm� --- — '— — REQUIREMENTS'——(Continued) ' - O R403�38uildin Cavities(Mandatory). Building framing cavities shall not be used ao ducts mplenums, O R403.3 Mechanical piping insulationMechanical system piping capable uf carrying fluids above 1o51F(411C) or below 55rF(1o°C shall boinsu.1atodma minimum o[Ra, n«oo.3.1 Protection m piping insulation. O R403.4.1 Circulating hot water systems(Mondaton0. Circulating hot water systems shall be provided with an automatic vrreadily accessible manual switch that can turn off the hot-water circulating pump when the system is not in use. O R403.4.3xoa (Mandatory). Storage water heaters not equipped with integral heat traps and having vertical pipe risers shall have heat traps installed on both the inlets and outlets.External heat traps shall consistmeither a commercially available heat trap or a downward and upward bend of at least o1/2 inches(89mm)in the hot water distribution line and cold water line located as close as possible m the storage tank. O n4��4 Water heater efficiencies(Mpnuatory). U R^oo4.o1 Storage water heater temperature controls . n40o.4.4.x.1 Automatic controls. Service water heating systems shall be equipped with automatic temperature controls capable of adjustment from the lowest m the highest acceptable temperature settings for the intended use.The minimum temperature setting range shall ba from 1OU"Foo14o"F(3o"Cm6o"C). . n403.4.4.1.2Shut down. A separate switch ma clearly marked circuit breaker shall bm provided mpermit the power supplied to electric service systems to be turned off.A separate valve shall be provided to permit the energy supplied m the main bumon(s) p[combustion types«|service water heating systems mbe turned off. {} R4uo.4.4.0 Water heating equipment. Water heating equipment installed in residential units shall meet the minimum efficiencies of Table C4o4uin Chapter 4n[the Florida Building Code,Energy Conservation,Commercial Provisions,for the type of equipment installed. Equipment used to provide heating functions as part of a combination system shall satisfy all stated requirements for the appropriate water heating category. Solar water heaters shall met the criteria Section Ro0o.*.4.c.1. . 8400.4.4.2./ Solar mmterheating systems. Solar systems for domestic hot water production are rated by the annual solar energy factor of the The solar energy factor of a system shall be determined from the Florida Solar Energy Center Directory of Certified Solar Systems.Solar collectors shall be tested in accordance with ISO Standard 9806,Test Methods for Solar Collectors, and SRCC Standard TM-1,Solar Domestic Hot Water System and Component Test Protocol,Collectors in installed solar water heating systems should meet tho following mitehu: 1. Be installed with a tilt angle between 10 degrees and 40 degrees of the horizontal;and o. 8o installed ooan orientation within 45 degrees of true south. O R403.5 Mechanical ventilation(Mandatory). The building shall be provided with ventilation that meets the requirements of the Florida Building Code,Residential o,Florida Building Code,Mechanical, applicable,ur with other approved means ofventilation. Outdoor air intakes and exhausts shall have automatic or gravity dampers that close when the ventilation system is not operating, O R4Voa Heating and cooling equipment VMondomn0. The following sections are mandatory for cooling and heating equipment. CJ R403.6/ Equipment sizing. Heating ipm shall be sized in accordance'With ACCA Manual S based unthe equipment loads calculated in accordance with ACCA Manual i or other approved heating and cooling calculation methodologies. based on building loads for the directional orientation of the building,The manufacturer and model number of the outdoor and indoor units(if split system)shall besubmitted along with the ib/ and total cooling capacities eo the design conditions described/n Section Raoo.1.This code does not allow designer safety factors,provisions for future expansion or other factors which affesizing.System sizing calculations shall not include loads created by local intermittent mechanical ventilation such ao standard kitchen and bathroom exhaust systems. ° n403.611 Cooling equipment capacity. Cooling only equipment shall be selected xo that its total capacity is not less than the calculated total load,but not more than 1.10 times greater than the total load calculated according m the procedure selected in Section 400.e.or the closest available size provided by the manufacturer's product lines.The corresponding latent capacity of the equipment shall not bu less than the calculated latent load. ' ' 19ni 712:43PM EnergyGauge@ USA'FlaRusso/4 'Section R4o5/k1Cum Page r of,o