Laserfiche WebLink
' <br /> ` <br /> . . <br /> ` <br /> ^ MANDATORTREQUIREM ENTS ~ (Continued) <br /> (Mandatory). Storage waterheaters�l n4ox��no�naps not equipped with inte ral 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 ap m a m inc <br /> hes distribution = m �. " ."�w.="" �u�/ � uum m m�mu=cs�a,v"xv <br /> »u�eummnetank. <br /> R��o Water heater efficiencies(wundatury). <br /> �l R403.5.6.1.1 Automatic controls. Service water-heating systems shall be equipped with automatic temperature controls capable <br /> of adjustment from the lowest mthexighoxtrmcoptab|emmpoonu,eoouinno,ortheinoendeduae.Thaminimvmtompoouue <br /> setting range shall be from ImrFtu14o^F(no^Ctp60r[). <br /> nun�5.s1:o Shut down. A separate switch oru clearly marked circuit breaker shall be provided to permit the power suppliedm <br /> electric service systems tobe turned off.A separate valveh ll be providedtopermit the energy supplied w the main bvmer(s)ox <br /> combusUon'types of service water-heating systems mbe turned off. <br /> F� n403.5.6.2nKat*phemting equipment. Water-heating equipment installed in residential units shall meet the minimum efficiencies of <br /> Table C4n4.ein Chapter 4n(the Florida Building Code,Energy Conservation,Commercial Provisions,for the type of equipmentinstal|od. <br /> Equipment used to provide heating functions as part of combination system shall satisfy all stated requirements for the appropriate <br /> water-heating category.Solar water heaters shall meet the criteria of Section R403.5.6.2.1. <br /> F1 n.��s.2.� Su|o,wahe�ing� m systems. Solar systems � wa <br /> ter ra <br /> ted--� R4o water <br /> -heating <br /> the system.The solar energy factor m/osystem shall be determined from the Florida Solar Energy Center Directory o <br /> Certified Solar Systems.Solar collectors shall be xmmd/n accordance with ISO Standard ooVG.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. Be installed with atilt angle between 10 degrees and 40 degrees of the horizontal;and <br /> o. on installed mam orientation within 45 degrees of true south. <br /> �l R«o3.oMm:han/co/vmmi|uUon(Mondo�n0. The building shall bepom�ed with v*nU|nbun�mmee�the mq�mmon�uf�o <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 R400.a1 Whole-house mechanical ventilation system fan efficacy. When installed m function uoa whole-house mechanical <br /> ventilation system,fans shall meet the efficacy requirements ov Table R400.uA. ' <br /> Exception: VVhemvholo'huvnn mechanical ventilation fans are integral tntested and listed HVAC equipment,they shall bo <br /> powered byan electronically commutated motor. <br /> F� n40n.V.o 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 change per hour minimums for residential buildings in 4GHRAEo2.o'Ventilation for Acceptable <br /> Indoor Air Quality,shall be the maximum rates allowed for residential applications. <br /> 2. No ventilation or air-conditioning system make-up air shall be provided to conditioned space from attics, <br /> crawlsponoo,attached enclosed garages or outdoor spaces adjacent to swimming pools or spas. <br /> 3. <br /> |f ventilation air is drawn from enclosed ($ then the wallsNthe from which air is drawn shall bo <br /> insulated mo minimum ofn-11 and the ceiling shall be insulated to a minimum of R-1 9,space permitting,or R-1 0 <br /> otherwise. <br /> R4on.7 Heating and cooling equipment(0andavory). <br /> �l R403.7.1 Equipment sizing. Heating and cooling equipment shall be sized in accordance with ACCA Manual S based on the <br /> equipmentmethodologies,|oedoralcu|atodinaccoodanmewithACCAManua|Jnrmh��opp�vedheabnOandcou|ingoa[ov|�|nn <br /> �mednnbui�i loads for the directionalmi �� of the bui|dinQ.The manufacturer and model number nv the outdoor and <br /> indoo,unit's(if split system)shall be submitted a|nng*oith the sensible and total cooling capacities at the design diti <br /> desert*bed in Section R302.1.This Code does not allow designer safety factors,provisionsfor future expansion other factors that <br /> affect equipment sizing.System sizing calculations shall not"include loads created"r local intermittent".°c.u.""".ventilation such <br /> an standard kitchen d bathroom exhaust New or replacement heating and cooling equipment shall have anefficiency <br /> rating equal to or greater than the minimum required by federal law for the geographic location where the equipment is installed. <br /> TABLEB4U3'O'1 <br /> WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM FAN EFFICACYRange hoods Any 2.8 cfm/watt Any <br /> FAN LOCATION AIRFLOW RATE MINIMUM MINIMUM EFFICACy a AIRFLOW RATE'MAXIMUIv <br /> ` <br /> Bathroom,utility room 90 <br /> ` <br /> 8Qfm/watt Any <br /> � <br /> For SI:1 cfn 28.3 Umin. a. When tested in accordance with HV Gtandaudn1G <br /> ` <br /> . <br /> <*��o 8�V�uNN Eno� � � <br /> yGauge�UGA 'FBC �� Unn�D�7> Compliant Software ` � Pago�of�� <br />