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DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

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Graphically, the Cycling Forced Air Cooling and Heating Strategy forRESYS (with an Air-to-Air Heat Pump, subZONE Baseboard Heaters, and NaturalVentilation) looks like the following:RESYSspecify CQOL- and HEAT-TEMP-SCHNATURAL- VENT- SCHNATURAL-VENT-ACVENT-TEMP-SCHHEAT-SQURCE=HEAT-PUMPBASEBOARD-eTR L= TH E R MCSTATI CSystemAirFlow*c.-"E .,c­OOu>SystemAir Flowto controlContro INatural ZONE Zone and allVentilatlon** Temperature*,subZones• coZMaximumTemperature.~ Cold c::> .g Cooling SetpointU as specified inCOOL-TEMP- SCH~'--"-'"-SubzoneBaseboardHeatersr"""]Of~• cozDead BondMinimum______ !~~e.::.a~::Heating, Setpointa> as specified in' HEAT-TEMP- SCH5 VENT-TEMP-Z SCHo~~::I~e~~ _______________ _* Assuming THERMOSTAT-TYPE =TWQ-POSITION** Provided the SCHEDULE referenced by NATURAL-VENT-SCH no.s an hourlyvalue of +1 or-1.SYSTEM-TYPE Equals PTACThe Package Terminal Air Conditioner (SYSTEM-TYPE = PTAC) is a "zonal"type system. The PTAC system provides either cold or hot air to one room, orZONE, normally in a commercial buil ding such as a hotel or motel room,a hospital room, or an office. The cold or the hot air stream may flow at oneof two constant volume flow rates, high orlow, assuming the supply fan is on.Th e PTAC does not h ave a return a ir fan.The cooling and heating sources for PTAC may be either (1) a DX refrigerationunit for cooling plus a heating source fueled by hot water, electricity,gas, oil, or solar or (2) an air-to-air heat pump.IV.145 (Rev ised 5/81)

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