Laserfiche WebLink
` <br /> ' <br /> ' ^ <br /> 111VIANDATORY REQUIREMENTS ~ (Continued)F� ���1� ��i�equ��� selected ���m� � <br /> u not less <br /> ��o��u������,��/]uU�y������� lated according to the procedure selected in <br /> Section 403.7,or the closest available size provided by the manufacturer's.product lines.The corresponding latent capacityof the <br /> oquipalont shall not be less than the calculated latent load. <br /> The published value for AHR|total capacity is a nominal,rating-test value and shall not be used for equipment sizing.Manufacturer's <br /> expanded performance data shall bo used m select cooling-only equipment.This selection,haU.b based on the outdoor design dry-bulb <br /> temperature for the load calculation(or entering water temperature for water-source equipment),the blower CFM provided by the expanded <br /> performance data,the design value for entering wet-bulb temperature and the design value for entering dry-bulb temperature. <br /> Design values for entering wet-bulb and dry-bulb temperatures shall be for the indoor dry bulb and relat ivo humidity uned)o,the load <br /> calculation and shall bo adjusted for return side gains if the return duc|(s)ia installed inon unconditioned space. <br /> Exceptions: <br /> I. Attached single-and multiple-family residential equipment sizing may be selected xo that its cooling capacity is less than the <br /> oalcblamdtotal sensible load but not less than 8o percent vf that load. <br /> 2. <br /> When signed and sealed by a Florida-registered engineer,in attached single-and multiple-family units,the capacity of <br /> equipment may be sized in accordance with good design practice. <br /> R*oo.r1.2 Heating equipment capacity. <br /> �l n403.7'1.2.1 Heat pumps. Hem pump sizingshall uo based nn the cooling requirements mv calculated according mSection <br /> R4oa.r.1.1.and the hauu pump total cooling capacity shall not be more than 1.15 times greater than the design cooling load even if <br /> the design heating load is1.15 times greater than the design cooling load. <br /> [� R403z122Elentric resistance furnaces. Electric resistance furnaces shall bv sized within 4Kwof the design <br /> requirements calculated according m the procedure selected in Section R400I1. <br /> � R403��3.Fossil fuel heating equipment. The capacity of fossil fuel heating equipment with natural draft atmospheric burners <br /> shall not be less than the design load calculated in accordance with Section R403.7,1. <br /> ' <br /> �� R4ou.� �Ex <br /> tra required special occasions. Rex�anooem � <br /> qvnOexcess upomgorhoaVngnqu�namoapon8ynnao <br /> �� intermittent basis,such as anticipated additional loads caused by major entertainment events,shall have equipment sized or controlled to <br /> prevent continuous space cooling or heating within that space by one or more of the following options: <br /> 1. A separate cooling or heating system isutilized to provide cooling`or heating to the major entertainment areas. <br /> e. A variable capacity system sized for optimum performance during base load periods is utilized. <br /> R403.8 Systems serving multiple dwelling units serving multiple dwelling units shall comply with Sections <br /> /—� oovo and u*u4m the/E^C—Cvmmeroa Provisions m lieu m Section R+vu. <br /> R403. Snow melt and ice controls(Mandatory) Snow-and building,ice-melting systems,supplied t'hrough energy service to the <br /> shall include m� � *h the pavement temperature is above SO»F(I 1C) and no <br /> precipitation is falling and an automatic or manual control that will allow shutoff when the outdoor temperature is above 401F(4.8*C). <br /> �l n4Va1Vpuo�and permanent spa ona�yopnsumphon�and�on4. The on�OyuvnuumpUpno(pools�dpermanent o�s <br /> �� shall bein accordance with Sections Fwo31V.1 through R4np.1o.5. <br /> �l R4Uo1u1Heaters. The electric power to heaters shall bo controlled bya readily accessible hn-o*switch that is an <br /> �-� integral part of the heater mounted on the exterior of the heater,vr external tu and within feet 4mn4of the heater.Operation <br /> of such switch shall not change the setting of the heater thermostat.Such switches shall be in addition to a circuit breaker for the <br /> power to the heater.Gas-fired heaters shall not be equipped with continuously burning ignition pilots. <br /> Fl n4oa.1�o Time switches. Time nwi�hnxm�ho,xon�o\m�hodxth�can a�umatioo|�mmoff and onoum�dingmepnmatschedule <br /> �� shall be installed for heaters and pump motors.Heaters and pump motors that have built-in time switches shall be in compliance with this <br /> section. <br /> Exceptions: <br /> t Where public health standards require 24-h pump operation. <br /> 2. Pumps that operate solar-and pool heating <br /> 3. Where pumps are powered exclusively from on-site renewable generation. ' <br /> �l '~~ uxCovom. ~~~~~ heatedmwinmin0ponbondoutdvn permanent spas shall be equipped with a`~p~'`�~~~^cover on mg the water surface ova liquid cover or other means proven to reduce heat loss, <br /> Exception: Where more than 7o percent of the energy for heating,computed over an operation*season,is from site-recovered <br /> energy,such ou from o heat pump nr��a,eno�y000mo^ovwemoro�o vapo�m��am means uoaonot h�mqu|�d. ` <br /> n4on.1�4Ge�and ui���dpool and spa xe�e�, /U/�s-and�|�vedpp�and spa hoa�mand|h�numinimumd`anna| <br /> efficiency of 82 percent for heaters manufactured on or after April 16,2013,when tested in accordance with ANSI Z 21.56.Pool <br /> heaters fired by natural orLP gas shall not have continuously burning pilot lights. <br /> ' <br /> 8/311201810:53Am Eno0yGuugs@USA FBCmb Edition(2017) Compliant Snhram page^of5 ` <br />