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- - -� i ` FORM R405-2014 �fA[�QE4TC?RY REQIJIRE�lIER��'S - (Continued) � R403.2.3 Buitding Cavitiss{Mandataryj.BuIlding framing cavities shall not be used as ducts or plenums. � ❑ R403.8 Mechanical system piping lnsulation(Mandatory�. Mechanical system piping capable of carrying fluids above 105°F(41°C) ` or below 55°F(13°C)shall be insulated to a minirnum of R-3., � R403.3.1 Protection of piping insulatlon. I � R403.4.1 Circulating hot water systems(Mandatory). Cireuiafing hot wafer systems sha(I be provided wifh an automafic ar readily j accessibie manuai switch that can tum off the hot-water circu(ating pump when the system Is not in use, ; I � � R403.4.3 Heaf traps(Mandatory). Storage water fieaters r�ot equipped with integral heat traps and having verfical pipe risers sha! ave heat traps instailed on aafh the inlets and outlefs.Externai heat traps shat!consist of either a commercia!!y available heat trap or a downward and upward bend of at least 3"/:inches(89 mm)in the hot water distribution line and cold water line located as close as possible to the storage tank. . � R403.d.A Wafer heaEer efficiencies(Mandatoryj. (� R403.4.4.9 Storage water heater temperature cantrals . R403.4.A.1.1 AutomaEic contrats. 5ervice water heating sysfems shal!be equipped with automatic temperature cqntrols capable of adjustment from the lowest to the highest acceptabie temperature seltings for the intended use.The minimum #emperature setfing eange shat(be from 100"F to 140°F(38°C to 60°C}. . R403.4.4.1.2 Shut down. A separate switch or a c(early marked circuit breaker shatl be providad to permit the power suppl'sed to etectric service systems to be turned aff.A separate valve shai(be prnvided to permit the energy supptied to the main burner(s) of combustion types of service water heating systems ko be tumed off. p R403.4.4.21Nater heating equIpment. Water heating equipment installed in residential units sha!!meet the minimurn efficiencies of Table C404.2 in Chapter 4 of the Florida Building Code,Energy Conservation,Commercial Pravisions,for the type of equipment insfalted. Equipment used to provide heating funcfions as part of a combination system shall satisfy aII stated requirements far fhe appropriate water � heafing category. Solar water heaters shalf inet ihe criteria SecUon R403.4.4.2.1. . R403.4_4.2.3 Salar wafer heaYsng systems.8ofar systems for domestic hot water productian are rated by the annual solar energy factor of the system.7he solar energy factor of a system shall be determined from the Florida Salar Energy Centet Directory of Certified Sotar Systems.Solar coI)ectors shali be fested in accordance with!SO S#andard 9806,Test Methods far Solar Ca!lectors, and SRCC Standard TM-1,Solar pomestic Hot Water System and Component Test Protocol,Collectors in installed solar water. heating systems should meet the following criteria: 9. Be installed with a tilt angle between 10 degrees and 40 degrees of the horizontal;and 2. Be insfalled af an orientation within 45 degrees of true south. p R403.5 Mechanicai ventitation(Mandatoryj. The buiiding shall be provided wiFh ventitation thaf ineefs the requirettrents of the Flarida Suilding Code,Residentia!or FEorida Building Gode,Nlechanicai,as applicabie,ar with ather approved means of ventilation. Ou2door air intakes and exhausts shall have automatic or gravity dampers that close when the ventilation system is not operaking. p R4q3.6 Neating and cooling equipment(Mandatory). The following sactions are mandafory for cooling and fieating equipment. 0 R403.6.1 Equipment sizing. Neating and caoiing equipment shatl be sized in accordance with ACGA Manoai S based on the equipment loads calculated in accordance with ACCA N3anuai.1 or ofher appcoved hea6ng and cooling calculation methodologies, based on building laads for the direclional orientation of the building.The manufacturer and model number of the outdoor and , indoor units(if split system}shail be submitted along with the sensibte and tota!cooting capacifies at the design conditions described in Section R302.1.This code daes not altaw designer safety factors,provisions for future expansion or ather factors which affect equipment sizing.System sizing calculations shall not include loads created by local intermittent mechanical ventilation � such as standard kitcfien and ba#firaom exhausf systems. • R403.6.1.1 Cooiing equipment capacity. Cooiing onty equipment shati be selected sa that its total capacity is nof less than the calcutated tota!taad,but not more than 1.15 fimes greater than the tota!load calculated according to the procedure selected in Section 403.6,or the closest available size provided by the manufacturer's product lines.The corresponding tatent capaciky of the equipmenf sha(I not be Iess fhan the calcutated latent load. 9t712017 7:51 AM EnergyGaugeO USA-FlaRes2014 -Sectian R405.4.9 Gom Page 2 of 3