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2012 Washington State En*Code Compliance Forms for Commercial, Grolo1, and> 3 story R2 and R3 ' Economizer Exceptions, Complex Systems MECH-ECONO 2012 Washington State EnergyCode Compliance Forms for Commercial Buildings includin R2&R3 over 3 stories and all R1 Revised Auo 2015 Economizer Project Address: 2205 BROADWAY Date 5/13/2016 Exception Economizer Exceptions-Complex Systems Water Summary CS Expl Water-cooled chilled beam and chilled ceiling systems with water Sy stem ID Economizer economizer.Capacity limit for all water economizer systems is 500 tons Capacity per building. (tons) Refer to Section C403.3.1 and C403.4.1 for descriptions of Total building water economizer capacity(tons-all systems): economizer provisions and CS Exp2 Water-source heat pumps with heat recovery. Heat pump efficiency shall System ID exceptions. For be 15%better than required minimum.Provide at minimum 60%air alterations refer economizer.Energy recovery to preheat OSA shall have at least 50% to Section effectiveness.Additional system requirements apply. C101.4.3.2 and Table CS Exp3 Chilled water terminal units.Part load efficiency of chilled water Cooling C101.4.3.1. generation equipment shall be 25%better than required minimum.Per System ID Capacity building limit of all systems without air economizer is 480,000 Btu/h or (Btu/h) 20%of required building air economizer capacity,whichever is greater. Total Claimed Exempt Capacity: Total building air economizer capacity(if claimed>480,000 Btu/h): Alternate CS Exp3 Capacity Limit: CS Exp4 Group R cooling equipment. Per unit limit is 20,000 Btu/h for Cooling equipment installed outdoors or in a mech room adjacent to the System ID Equipment Capacity outdoors.For cooling equipment installed in other locations the Location (Btu/h) unit limit is 54,000 Btu/h.Efficiency shall be 15%better than required minimum. CS Exp5 Equipment for dedicated server,electronic equipment or telecom Compliance Cooling switch rooms. Per building limit of all systems without air System ID Capacity economizer is 240,000 Btu/h or 10%of required building air Option (Btu/h) economizer capacity,whichever is greater.Part load control required over 85,000 Btu/h.Additional requirements apply. Option a- Efficiency shall be 15%better than required minimum. Option b-Efficiency shall be 5%better than required minimum. Waterside economizer required. Option c-All cooling equipment is subject to ASHARE Standard 127. Waterside economizer required. Option d-Chiller efficiency shall be 25%better than C403.2.3(7)full load and part load minimum. No economizer required. Option e-Chiller efficiency shall be 10%(air cooled)/15%(water cooled)better than C403.2.3(7) minimum. Dedicated waterside economizer required. Total Claimed Exempt Capacity: Total building air economizer capacity(if claimed>240 kBtu/h): Alternate CS Exp5 Capacity Limit: CS Exp6 Variable refrigerant flow(VRF)systems with energy recovery.Limited to Outdoor Unit buildings 60,000 sf or less.Outdoor unit min.capacity is 65,000 Btu/h. StID Cooling System Energy recovery to preheat OSA shall have at least 50%effectiveness. Capacity Zones served shall be at least 20%interior and 20%perimeter. (Btu/h) Additional requirements apply.