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" <br /> ` . . <br /> -MANDATORY REQUIREMENTS - ([o[tiOUmd) <br /> � ��Heat traps(Mandatory). Storage water heaters not equipped with integral heat traps and having vertical pipe risers shall have <br /> u heat traps installed on both the inlets and outlets, External heat traps shall consist of either ocommercially available heat trap or a <br /> downward and upward bend o[at least o1/z inches(unmm)in the hot water distribution line and cold water line located as close anpossible <br /> m the storage tank. <br /> Rona.a'6 Water heater efficiencies 8moquumq0. <br /> �l n000.5.6.1.1 Automatic controls. Service water-heating systems shall be equipped with automatic temperature controls capable <br /> of adjustment from the lowest to the highest acceptable temperature settings for the intended use.The minimum temperature <br /> setting range shall b*from 1no"pto14o^F(3oCmso"[). <br /> �l R4Ox.*.n.1.o Shut down. A separate switch or a clearlymarked circuitbmaknrohal|bepmvidedtnponnhthapowa,oupp||odtu <br /> electric service systems mbo turned off.A separate valve h ll be providedno permit the energy supplied m the main humor(u)of <br /> combustion types mx service water-heating systems vobe turned off. <br /> Fl n4uuama Water-heating equipment. YYemr-hooUng equipmentinstalled/nmaidomda|unimuha||mmet the minimum efficiencies o/ <br /> Table C4ou.2in Chapter 4w the Florida Building Code,Energy Conservation,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 uritnhaof Section R400.5a2.1. <br /> �l H*un.s'o.z.1 Solar wme�hemu|ngoymmmu. Solar systems�rdnmovhohmvmoo,pmd��onamounuby the annual solar on�gy <br /> � factor of the system.The solar energy factor of a system shall be determined from the Florida Solar EnergyCenter Directory cx <br /> Certified Solar Systems.Solar collectors shall be tested in accordance with ISO Standard 9806,Test Methods 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 /> 1. oo installed with a tilt angle between 1n degrees and 4u degrees n(the horizontal;and <br /> c. oo installed numm orientation within 4n degrees of true south. <br /> �l Rono.s Mechanical voni|abun(Mamuamg0. The buUdingah� pro <br /> vided requirements�»uuftxe <br /> -- Florida Building Code,Residential,or Florida Building Code,Mechanical,as applicable,or with other approved means of ventilation <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 is not operating. <br /> �l n4oa.n.,Whole-house mechanical ventilation system fan efficacy. When installed m function aoa whole-house mechanical <br /> ventilation system,fans shall meet the efficacy requirements u[Table R^on.o.1. <br /> Exception: Where whole-house mechanical ventilation fans are integral to tested and listed HVAC equipment,they shall be <br /> powered byanelectronically commutated motor. <br /> �l n4uua.2 Ventilation air. Residential buildings designed to be operated at a positive Indoor pressure or for mechanical ventilation <br /> shall meet the following criteria: <br /> I. The design air change 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 /> o. No ventilation or air-conditioning system make-up air shall be provided to conditioned space from attics, <br /> crawlspaces,attached enclosed garages or outdoor spaces adjacent to swimming pools or spas. <br /> o. |f ventilation air is drawn from enclosed space(s).then the walls pf the vpavo$;from which air iu drawn shall bo <br /> insulated(oa minimum nfR,11 and the ceiling shall be insulated to a minimum of R-1 9,space permitting,or R-1 0 <br /> otherwise. <br /> R«oo.7 Heating and cooling equipment(Mandatoq). <br /> �l goo3z1 Equipment sizing. Ho�ingand cooling equ�momshall bo sized in accordance��ACCxMamu�Gbmmdun�e <br /> �� equipment loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculationeth d | iay. <br /> based on building loads for the directional orientation of the building.The manufacturer and model number of the outdoor and <br /> indoor units(if split system)shall be submitted along with the sensible and total cooling capacities a¢the design conditions <br /> described m Section Rouu.1.This Code does not allow designer provisions for future expansion u,other factors that <br /> affect equipmentoizino.System sizing calculations shall not include loads created by local intermittent mechanical ventilation such <br /> ae standard kitchen and bathroom exhaust systems.New replacement heating and cooling equipment shall have oneffidenGy <br /> rating equal to or greater than the minimum required by federal law for the geographic location where the equipment is installed. <br /> TABLEQ4O3.6.1 <br /> WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM FAN EFFICACY <br /> FAN LOCATION AIRFLOW RATE MINIMUM MINIMUM EFFICACy a AIRFLOW RATE MAXIMUN <br /> Range hoods Any 2.8 cfm/watt Any <br /> In-line fan Any 2.8 cfm/watt Any <br /> Bathroom,utility room 90 2.8 cfm/watt An <br /> — For at1cfm=omoUmin. a When tested m accordance with Hv|Standard o10 <br /> ^"'^`^^^ ="""`"r,".."wmI)SA ao.uc(nex1)-FlaRos2o1rF8omx Edition(2n1r) Compliant Software Page uofo <br />