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' . . MANDATORY REQUK8REMENTS ~ (Continued) �l R403.7.1.1uooling equipment capacity, Cooling only equipment shall be selected so that its total capacity is not less than the calculated total load but not more than 1]ntimes greater than the total load calculated according to the procedure selected in Section*oaJ.or the closest available size provided by the manufacturer's product lines.The corresponding latent capacity of the equipment shall not bo less than the calculated latent load. The published value for AHRI total capacity is a nominal,rating-test value and shall not be used for equipment sizing.Mamunmmm/m expanded performance data shall be used to select cooling-only equipment.This selection shall be based on the outdoor design dry-bulb temperature for the load calculation(or entering water temperature for water-source equipment),the blower CFM provided by the expanded performance data,the design value for entering wet-bulb temperature and the design value for entering dry-bulb temperature. Design values for entering wet-bulb and dry-bulb temperatures shall be for the indoor dry bulb and relative humidity used for the load calculation and shall bo adjusted for return side gains if the return dmm($ia installed inan unconditioned space. Exceptions: 1. Amochedoinmle-and muresidential equipment sizing may be selected so that its cooling capacity is less than the calculated total sensible load but not less than eo percent of that load. 2. When signed and sealed by a Florida-registered engineer,in attached single-and multiple-family units,the capacity of equipment may bo sized in accordance with good design practice. R4no.7.1-2 Heating equipment capacity. �� R400.7.1.o.1 Heat pumps. Heat sizing shaUbo based on�e cooling mquimmonmavo�:u|�odaocv�inox/aouUon �� R400J.1.1,and the heat pump total cooling capacityshall not bo more than 1.1s times greater than the design cooling load even i[ the design heating load is1.10 times greater than the design cooling load. [l noo3.z1'o.r Electric resistance furnaces. Electric resistance furnaces shall be sized within 4kwo[the design requirements calculated according tv the procedure selected in Section R4uuz1. �l n*oo.�1.o�Fossil b/Whea�ngaquipmon� The capacity fossil o� m�heating mqu�mm*w�hnamo dr aft uum� �� shall not be less than the design load calculated in accordance with Section R403.7.I. �l Roou.7.1.oEmm capacity nequimufor special occasions. Residences e ih mmeawcooling orhoahngoqu� �mon�oap� �onan �� intermittent basis,such as anticipated additional loads caused by major entertainment events,shall have equipment sized or controlled to prevent continuous space cooling or heating within that space by one or more of the following options: 1. A separate cooling or heating system is utilized to provide cooling or heating to the major entertainment areas, 2. A variable capacity system sized for optimum performance during base load periods is utilized. �7 Bono.8 Systems serving multiple dwelling units 0mandaton0' Systems serving multiple dwelling units shall comply with Sections C4nu and c*o4m the|FCo—'Commorcia|Provisions in lieu vf Section R4oa. Fl R4ou.e Snow melt and ice system uonmn|m<Mendomon0 Gn��and ice'm�Unqsystems,supplied�muohenergy oomioom the building, �� shall include automatic controls capable of shutting off the system when the pavement temperature io above 5o"F(1o°q.and no precipitation is falling and an automatic or manual control that will allow shutoff when the outdoor temperature is above 40*F(4VC). �l a«V3.1u Pools and permanent spa eu�g consumption(Mandatory). The eme�younoumpdunm pools and permanent spas �� shall bain accordance with Sections R400.1o.1 through R4ou.1o.a �� gonn'1o.1Heo�m' The a�o�cpuwa /ohe�om shall bocmnon//odbyamadi�uoceaoiNemn*ffowimn that�an �� integral part o the heater mounted on the exterior of the heater,or external to and within 3 feet(914 mm)of the heater.Operation of such switch shall not change the setting of the heater thermostat.Such switches shall be in addition to a circuit breaker for the power to the heater.Gas-fired heaters shall not be equipped with continuously burning ignition pilots. Roo3.1u.c Time switches. Time switches or other control methods that can automatically turn off and on according ma preset schedule shall be installed for heaters and pump motors.Heaters and pump motors that have built-in time switches shall be in compliance with this section. Exceptions: 1. Where public health standards require m-hou,pump operation. u. Pumps that operate solar-and waoto'homt-mvuvory pool heating systems. u. vV here pumps are powered exclusively from on-site renewable generation. �7 R403.10.3oovnrs. Outdoor heated swimming pools and outdoor permanent spas shall ue equipped with a vapor-retardant cover vnmau the water surface vru liquid cover or other means proven to reduce heat loss. Exception: Where more than 70 percent of the energy for heating,computed over an operation season,is from site-recovered onorgy,such as from a heat pump or solar energy source,covers or other vapor-retardant means shall not be required. n400'1o'«Gas-and ox�imd pool and opohootonw' *Kgas-and oi|'�mdpool and spa hemtomsh�|have o minimum thenna| �7 efficiency n/oc percent for heaters manufactured on or after April 16,oo1u.when tested in accordance with ANSI zo1.os.Pool heaters fired by natural mLP gas shall not have continuously burning pilot lights. 11/20/20202:50PM snvrgyaauQw@uGA Vooe(nov.1)'F|uReauo17F8omh Edition(oo17) Compliant Software Page 1ufo