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6V IV V VVL.V I\G1a411G11.1 Il0 I VI VVIIIIIIOI Iaal LI411UII 190 IIKUUUlI 9 I SJ Lx IV?VVGI J OLVIICO Ot all Is. — Inn uuw....v....) v.-..—. ...--..,• ••o..-_._--____- <br /> The following information is necessary to check a mechanical permit application for compliance with the mechanical systems and equipment requirements in the <br /> 'Washington State Energy Code,Commercial Provisions. <br /> For questions about this report,contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com <br /> C:403.4.3.3.1 Water loop heat Indicate method of water loop ternperture <br /> pump- temperature control(central plant equipment controls are <br /> deadband configured to provide>201'water supply <br /> temperature deadband between heat rejection <br /> and heat addition modes,or controls are <br /> configured feu system loop temperature <br /> optimization <br /> C403.4.3.3.2 Water loop heat Indicate type of cooling tower(open-or <br /> pump-heat rejection closed-circuit)in equipment schedule: <br /> equipment indicate whether the cooling tower is used <br /> directly in the heat pump loop or in <br /> conjunction with a separate heat exchanger; <br /> indicate method used to limit system heat loss <br /> • <br /> when heat rejection is not needed <br /> C403.4.3.3..3 Water loop heal For hvclronic heat pump systems with total <br /> pump-isolation system power> 10 hp,indicate 2-way <br /> valves isolation valves on each heat pump and <br /> variable flow system control • <br /> HEAT REJECTION SYSTEMS-EQUIPMENT SELECTION&PERFORMANCE <br /> C403,9.1.3 Centrifugal fan open- For open-circuit centrifugal fan cooling <br /> circuit cooling towers . towers with 1,1011 gpm capacity.indicate <br /> cooling.towers comply with efficiency <br /> requirements for axial fan open circuit <br /> cooling towers <br /> • <br /> HEAT REJECTION&RECOVERY-CONTROLS <br /> C403.9.1.1 C Fan speed control For each fan powered by an individual motes, <br /> 403,9.1.2 or array of motors,with total connected fan <br /> power>_5 hp including motor service <br /> factor).indicate method of automatic fan <br /> speed control(adjusted based on leaving fluid <br /> temperature or condenser temperature/ <br /> • pressure of heat rejection device);verify fan <br /> selection provides<_30% design wattage at <br /> 50%design airflow <br /> For multiple-cell heat rejection equipment <br /> with VSD.indicate controls are configured to <br /> ramp all fans in unison(not staged on/off <br /> operation) <br /> C403,9.1.-4 Cooling tower flow For open-circuit cooling towers configured <br /> turndown with multiple-or variable-speed condenser <br /> • water pumps.indicate systemm is designed so <br /> • all cells can be run in parallel:indicate method <br /> of condenser pump turn down control <br /> C403.9?.I Heat recovery for For buildings with 24-houroperation and> <br /> service water heating 1,500,000 Btu/h of heat rejection capacity <br /> and design service hot water load>250,000 <br /> Pin/h.indicate condenser heat recovery to pre- <br /> heat service water;or exception applied. <br /> Provide calculations showing thesunount o1 <br /> recovered heat that is utilized of peal <br /> heat rejection load or pre-heat service water <br /> to 85`F). <br /> • <br /> lrl 25 <br />