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. <br /> ` ^ <br /> ` <br /> . . <br /> 5AANDATORY REQUKREMENTS ~ (Continued) <br /> [� R403.5.5 Heat with integral heat traps and having vertical pipe risers shall have <br /> heat traps installed on both the inlets and outlets.External heat traps shall consist of either a commercially available heat trap or a <br /> downward and upward bend of at least 3 1h inches . . in the hot water distribution line and cold water line located as close as possible <br /> m the storage tank. <br /> . <br /> n4Vo�.6 Water heater efficiencies(wandemry). ' <br /> �7 n403s.6.1.1 Automatic controls. Service eate,heatinosystems shall be equipped with automatic temperature controlscapable <br /> ov adjustment from the lowest m the highest temperature settings for the intended use.The minimum temperature <br /> setting range shall b°from Ioo~Fm140^F(3o^CmVo^C). <br /> � ��1.2 Shut down. 8 separate switch or a clearly marked circuit breaker shall be provided to permit the power supplied to <br /> electric service systems to be turnedoff.A separate valve shall bo provided to permit the energy supplied m the main bmnm(s)of <br /> combustion types of service water-heating systems mueturned off. <br /> �7 R400.S.8.uVvme�6�ginomqu|pment vVsm�hoaUnQ°quipmo�installed�inms�or�a|un8o shall memthe minimum�hoiondo*nf <br /> �� Table coo4.einCha�er4�the F�hdaeuiNingCode,Enegy{*ma�abuo.Commercial Provisions,for the type of equipment installed. <br /> Equipment used to provide heating functions as part of a combination system shall satisfy all stated requirements for the appropriate <br /> water-heating category.Solar water heaters shall meet the criteria of Section R4pm.5.o.o.1. <br /> �l n4no.�n.�1So�rwam�hoa�ngsy�oms. Solar oyo�msfor domemiohm�me,pmouc�on�en�euby the annual o�arnne�y <br /> -- factor of the system,The solar energy factor ofa system shall be determined from the Florida Solar Energy Center Directory of <br /> Certified Solar Systems.Solar collectors shall be tested in accordance with ISO Standard 9806,TestMethods for Solar Collectors, <br /> and SRCC Standard TM-1,Solar Domestic Hot Water System and Component Test Protocol.Collectors in installed solar <br /> water-heating systems should meet the following criteria: <br /> ` <br /> /. Be installed with d�|ud �haanyeboumoan1odonm,sund4Vdegmowo«thohnrizontm;and <br /> e. Be installed aton orientation within 45 degrees u[true south. <br /> R403.6 Mechanical ventilation(Mandatory). The building shall be provided with ve ntilation that meets the requirements of the <br /> Florida Building Code,Residential,u,Florida Building Code,Mechanical,eu applicable,v,,mmmo,xuppmvo°mnonoo,"anu/mmn <br /> including:Natural,Infiltration or Mechanical means.Outdoor air intakes and exhausts shall have automatic or gravity dampers that <br /> close when the ventilation system in not operating. <br /> Fl R403.6.1 Whole-house mechanical ventilation system fan efficacy. When installed to function as a whole-house mechanical <br /> ventilation system,fans shall meet the efficacy requirements of Table R400.a.1. <br /> Exception: Where whole-house mechanical ventilation fans are integral to tested and listed HVAC equipment,they shall be <br /> powered byan electronically commutated motor. <br /> Fl R4uo.s.0 Ventilation air. Residential buildings designed to be operated at a positive indoor pressure or for mechanical ventilation <br /> shall meet the following criteria: <br /> 1 The design air per hour minimums for residential buildings in ASHRAE 62.2,Ventilation for Acceptable <br /> Indoor Air Quality,shall be the maximum rates allowed for residential applications. <br /> 2. system make-up air shall he provided m conditioned space from attics, <br /> orawiupaouv.attached enclosed garages o,outdoor spaces adjacent m swimming pools orspas. <br /> ^. If ventilation air is drawn from enclosed space(s),then the walls of the space(s)from which air is drawn shall be <br /> insulated to a minimum of R-1 I and theceiling shall be insulated to a minimum of R-19,space pen-nitting,or R-10 <br /> mhon,un. <br /> n403.7 Heating and cooling equipment(Mandatory). <br /> [l R4noz1 Equipment sizing. H�� an <br /> d m <br /> pmovh�|beo� ac <br /> cordance <br /> F� equipment loads calculated in accordance with ACnA Manual Jo,other appbvndheating and cooling calculation math000| ise. <br /> based on building loads for the directional orientation uf the building.The manufacturer and model number m the outdoor and <br /> indoor units(if split system)shall be submitted along with the sensible and total coolingcapacities at the design dih <br /> described in Section R302.1.This Code does not allow designer safety factors,provisions for future expansion or other factors that <br /> affect equipment sizing.Sy§tem sizing calculations shall not include loads created by local intermittent mechanical ventilation such <br /> aa standard kitchen and bathroom exhaust systems.New m replacement heating and cooling equipment shall have amefficiency <br /> rating equal mor greater than the minimum required by federal law for the geographic location where the equipment minstalled. <br /> IABLER403.6.1 <br /> WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM FAN EFFICACY <br /> FAN LOCATION AIRFLOW RATE MINIMUM MINIMUM EFFICACY AIRFLOW RATE MAXIMUM' <br /> Range hoods Any 2.8 cfm/watt Any <br /> In-line fan Any 2.8 cfm/waft Any <br /> Bathroom,utility room 90 2.8 cfaifivatt Any_. <br /> _ <br /> For SI:1cfm~000L/min. a- When tested in accordance with HV Standardmo <br /> ' <br /> 8/31/2oom�w�W � USA`-FBo0xEu�onpV71 Compliant Software Page 8c*� � <br />