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TABLE C403.5.1(1) � <br /> ENERGY RECOVERY REQUIREMENT <br /> (VENTILATION SYSTEMS OPERATING LE55 THAN 8,000 HOURS PER YEAR) <br /> PERCENT(%)OUTDOOR AIR AT FULL DESIGN AIRFLOW RATE <br /> >10%and >20%and >30%and >_40%and >50%and >_60%and >_70%and <br /> CLIMATE ZONE >80% <br /> G20% G30% G40% G50% G60% G70% G80% <br /> DESIGN SUPPLY FAN AIRFLOW RATE(cim) <br />, 4C,SB NR A'R NR I NR I NR I NR I >_5000 I >5000 <br /> NR=not required <br /> TABLEC403.5.1(2) � <br /> ENERGY RECOVERY REQUIREMENT ' <br /> (VENTILATION SYSTEMS OPERATING NOT LE55 8,000 HOURS PER YEAR) <br /> PERCENT(%)OUTDOOR AIR AT FULL DESIGN AIRFLOW RATE <br /> >_'10%and >_20%and >30%and >40%and >_50%and >60%and >_70%and <br /> CLIMATE ZONE >gp/ <br /> � G20% G30% G40% G50% G60% G70% G80% <br /> I DESIGN SUPPLYFAN AIRFLOW RATE(cfm) <br /> I 4C I NR >19500 >_9000 >5000 >4000 >3000 > 1500 >0 <br /> I SB I >2500 >2000 >1000 >_500 >0 >0 >0 >0 <br /> NR=notrequired <br /> � 9. Systems serving Group R dwelling or sleeping CA03.5A Heat recovery for service water heating. <br /> units where the largest source of air exhausted at Condenser heat recoveryshall be installed for heating <br /> a single location at the building exterior is less or reheating of service hot waterprovided the facility � <br /> than 25 percent ofthe design outdoor air flow operates 24 hours a day,the total installed heat <br /> rate. capacity ofwater cooled systems exceeds 1,SOQ000 <br /> CA03.5.2 Condensate systems.On-site steam Btu(l�r of heat rejection,and the desi�service water <br /> heating systems shall have condensate water heat heating load exceeds 25 Q000 Btu/k�r. <br /> recovery.On-site includes a system that is located The required heat recovery system shall have the <br /> within or adjacent to one or more buildings within the capacity to provide the smaller of: <br /> boundary of a contiguous azea or campus under one 1. Sixry percent of the peak heat rejection load at <br /> ownership and which serves one or more of those design conditions;or <br /> buildings. 2. The preheating required to raise the peak service <br /> Buildings using steam generated off-site with hot water draw to 85°F(29°C). <br /> steam heating systems which do not have condensate Exceytions: <br /> water recovery shall have condensate water recovery. <br /> 1. Facilities that employ condenser heat <br /> CA03.5.3 Condenser heat recovery.Faciliries recovery for space heating or reheat <br /> having food service,meat or deli departments and purposes with a heat recovery design <br /> having SOQ000 Btu/h or greater of remote exceeding 30 percent of the peak <br /> refrigeration condensers shall have condenser waste water-cooled condenser load at design <br /> heat recovery from freezers and coolers and shall use conditions. <br /> the waste heat for service water heating,space Z. Facilities that provide 60 percent of their <br /> heatingorfordehumidificationreheat.Facilities z servicewaterheatingfromsitesolarorsite <br /> having a gross conditioned floor area of 40,000 ft or recovered energy or from other sources. <br /> greater and 1,000,000 Btu/h or greater of remote • � <br /> refrigeration shall have condenser waste heat CA03.6 Dedicated outdoor air systems (DOAS).(This a <br /> recovery from fi'eezers and coolers and shall use the section is Oytiona]through 6/30/2017; it becomes <br /> waste heat for service water heating,and either for Prescriytive as of 7/1/2017).For of&ce,ietail,education, e <br /> space heating or for dehumidification reheat for libraries and fire stalions, outdoor air shall be provided to : <br /> maintaining low space humidity. each occupied space by a dedicated outdoor air system e <br /> � <br /> CE-68 2015 Washington State Energy Code <br />