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` FORMH4O5-2014 MANDATORY REQUUREMENTS ~ (Continued) . . — O �03�.3 Building Cavities(Mandatory). Building framing cavities shall not baused as ducts mplenums. O n403.3 Mechanical system piping insulation(Mbnuaton). Mechanical system piping capable of carrying fluids above 1oo1`(4U1C) u,below ss"F(1u"C)shall bo insulated ma minimum ofBo, R403.3.1 Protection m piping Insulation. ' O n403.4'1 Circulating hot water systems(Manuomry). Circulating hot water systems shall bo provided with an automatic mreadily accessible manual switch that can turn off the hot-water circulating pump when the systemis not inuse. O n403.4.3Hmo traps(Mandatory). Storage water heaters not equipped with integral heat traps and having vertical piperlsers shall have heat traps installed on both the inlets and outlets.External heat traps shall consist of either a commercially available heat trap or a downward and upward bend ofm least o}ymooeo(8mmn)mmeomomterdiomuununoneamuov/uvmaterona/ovatodaumuneompoosm/n m the storage tank. u n403.4'4 Water heater efficiencies(Mondatny). O m«uu.«.4.1 Storage water heater temperature controls _ . R40o.o.4.1.1 Automatic controls. Service water heating systems shall be equipped with automatic temperature controls capable of adjustment hom the bm v� u,tbehiohwntuoon�ab��mpen� m �0 uonQn�x�nim mi nimum tempoouuneoeuingnangeshall bn from 1uO~Fx,14n^F(3o~Cmoo,C). . ;��1.2 Shutdown' A separate switch ma clearly marked circuit breaker shall be provided to permit the power supplied m electric service systems to bo turned off,A separate valve shall be provided topermit the energy supplied m the main bumor(u) of combustion types vf service water heating systems tobo turned off. O Rvuo.o�2 Water heating equipment. Water heating equipment installed in residential units shall meet the minimum efficiencies of Table C404.2 in Chapter 4 of 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 R+nu.4.4.u.1. . R403.4.4.2.1 Solar water heating systems. Solar systems for domestic hot water production are rated by the annual solar energy factor of the system.The solar.energy factor of a system shall be determined from the Florida Solar Energy Center Directory nf 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 the following criteria: 1. Be installed with a tilt angle between 10 degrees and 4o degrees of the horizontal;and _ u. Be installed ozom orientation within 4a degrees m[true south. O provided ventilation that meets the requirements nfthe Florida Building Code,Residential— Florida Building Code,Mechanical,_applicable,—with other_ approved means o ventilation. outdoor air intakes and exhausts shall have automatic or gravity dampers that close when the ventilation system is not operating. Roune**�tinguoduno/iogequipmon�V0ondomn0 Thandkmingse��nnanmandom�fn,ouuonganuhoahnQoquipmen� O ' ' O g403.6.1 Equipment sizing. Heating and cooling equipment shall be sized in accordance with ACCA Manual S based on the equipment loads calculated in accordance with ACCA Manual J 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 be submitted along with the sensible and total cooling capacities at the design conditions described in Section RaOu.1.This code does not allow designer safety factors,provisions for future expansion m other factors which affect equi m ntaizing.8ystemoizingoa|cU|oUonushal(nm|nu|uue|padoumauedby|ooa|intnnniuentmeohanioalventilatiun such aystandard kitchen and bathroom exhaust systems. ' ^ R403.6'1.1 Cooling equipment umpacity. Cooling only equipment shall be selected so that its total capacity is not less than the calculated total| ad but not more than 1 15 times greaterthan the total load calculated according mthe procedureselected in Section uoo.V.or the closest available i manufacturer's product lines.The corresponding latent capacity ofthe equipment shall not bo less than the calculated latent load. . ` 11/9/20710:27AM EnnrgyGougeg USA'RaReo2o4 -SanUonR4o*�.1 Com Page uof3