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' <br /> . . <br /> ^ . . <br /> . . <br /> VANDATORY REQUUREMENTS ~ (Continued) <br /> �l 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 1/2 inches(89 mm)in the hot water distribution line and cold water line located as close as possible <br /> m the storage tank. <br /> n4o3.aa Water heater efficiencies(manuatn,y). <br /> --' R^ou's'G'1'14wx,mauic controls. Gomicewa�rh��nosystems a»� `� au <br /> tomatic � m ic�empe, uomntm|scapab|o <br /> / } <br /> o;adjustment from the lowest m the highest acceptable temperature settings for the.intended use.The minimum temperature. <br /> setting range shall be from 1Vo"Fxn14n^F(381Cm60^C). <br /> �l R403�.6.1.2nhu down. A separate switch n,u clearly marked circuit breaker shall provided to permit the power supplied to <br /> electric service systems,vbu turned off.A separate valve shall hoprovided to permit the energy supplied tn the main bumer(o)of <br /> combustion types of service water-heating systems mbe turned off. <br /> �l ���s.�o���,»s���ui�� W��he������in��in�i��un���|m��omm����i�� <br /> Table C404.2in Chapter 4 of the Florida Building Code,Energy Conservation,Commercial Provisions,for the of equipment installed. <br /> Equipment used u,provide heating fu chvno part of a combination system shall satisfy all stated requirements for the appropriate <br /> water-heating category.Solar water heaters shall meet the criteria nf Section R4Oo.5.o.u.1. <br /> !| F�nu.s.�2.1 Subrmm��heu�n0aya�mo. Solar ay�oms� �for domestic � pm �duonumn�edby�e annual s�a,enn�y <br /> -- factor of the system.The solar energy factor of a system shall be determined from the Florida Solar Energy Center Directory of <br /> Certified Solar Gymemu.Go|arov||*utom shall ba�mtadinaocu�an,m with ISO��unda� m fo <br /> r o , <br /> and SRCC�andanJTM�1.Solar Domestic Hot Water System and Component Test Protocol.Qol|amomin 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 /> c. Be installed atam orientation within 4o degrees of true south. <br /> F] n«��m�hm�mdv�Ubmvn(� � � <br /> m� u . The bui�inoox�|bopnm� �od,� venh|uV �� �m�ventilation that �the <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 /> |o m� n� V/mi system o*operating.close � o�m ventilation is opn ng. <br /> �l Fwno.6.1 Whole-house mechanical ventilation system fan efficacy. When installed m function 000 whole-house mechanical <br /> ventilation system,fans shall meet the efficacy requirements o/Table R4oaa1. <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 /> R4Oo,6.2 Ventilation air. Residential buildings designed to be operated at a positive indoor pressure or for mechanical ventilation <br /> shall meet the following criteria: <br /> 1 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 /> c. No ventilation or air-conditioning system make-up air shall be provided to conditioned space from attics, <br /> oouwupacno.attached enclosed garages u,outdoor spaces adjacent to swimming puo|vo,spas. <br /> 3. <br /> |f ventilation air ix drawn from enclosed spane(s)'then the walls of the apooe(w)from which air iu drawn shall bo <br /> insulated mo minimum ofR-11 and the ceiling shall bm insulated mominimum ofn-18.space permitting,n,R'10 <br /> mxonvan. <br /> n4V3.r Heating and cooling equipment(Mmndotnry). <br /> �l n4u3.�1 Equipment sizing. Ho�iogand cooling pqvipmamsh�(beai�din accordance w�hACCA Manual S based unthe <br /> �� equipment loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculation methodologies, <br /> based on building loads for the directional orientation oi the building.The manufacturer and model number of the outdoor and <br /> indoor h (if split system)shallu umimeu along with the sensible and total cooling capacities at the-design the-design conditions <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.System sizing calculations shall not include loads created by local intermittent mechanical ventilation such <br /> as standard kitchen and bathroom exhaust systems.New or replacement heating and cooling equipment shall have an efficiency <br /> rating equal to or greater than the minimum required by federal law for the geographic location where the equipment is installed. <br /> TABLER4O3.6'1 <br /> WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM FAN EFFICACY <br /> FAN LOCATION AIRFLOW RATE MINIMUM MINIMUM EFFICACY a AIRFLOW RATE MAXIMUIV <br /> Range hoods Any 2.8 of m1watt Any <br /> In-line fan Any 2.8 cfm/watt Any <br /> For a|: 1 cfn~un.oUmin. a. When tested in accordance with Hv atandmd91s <br /> ' <br /> og �n AM EditionPage <br /> u/1�n o�1xm sno�y�augo�US4 po��� �o 7) Compliant On�.a� Pag�u 5 <br />