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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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FAN-PLACEMENTCode-WordIN-AIRFLOWspecifies whether the supply fan is a draw-through type fanor a blow-through type fan (that is, is the fan placeddownstream or upstream from the central cooling/heatingcoils). See Table IV.38.OUTSIDE-AIRFLOWTABLE IV.37MOTOR-PLACEMENTThe fan motor is locatedinside the duct or airstream.The fan motor is located outsidethe duct or airstream.Code-WordBLOW-THROUGHDRAW-THROUGHTABLE IV.38FAN-PLACEMENTThe supply fan is located upstream of the centralheating/cooling coils and blows the air throughthe coils. Use of this code-word causes theprogram to add the supply fan heat to the airupstream of the central cooling/heating coils.Always used for DDS, UHT, UVT, PTAC, PMZS, TPFC,FPFC, HP, RESYS, and MZS systems.The supply fan is located downstream of thecentral heating/cooling coils and draws (sucks)the air through the coils. Use of this code-wordcauses the program to add the supply fan heat tothe air downstream of the central cooling/heatingcoils. This is the default for SZRH, SZCI, TPIU,FPIU, VAVS, RHFS, CBVAV, PSZ, and PVAVS.RETURN-DELTA-TRETURN-KWis used in conjunction with RETURN-KW and is defined as thetemperature rise in the air stream across the return air fan.It is expressed in OF and its default value is zero. Thisdefault value, and a similar value for RETURN-KW, will beused in the absence of data entries for RETURN-STATIC andRETURN-EFF. If the user specifies a value for RETURN-DELTA-T,any input for the keyword MOTOR-PLACEMENT will have no effect.is used in conjunction with RETURN-DELTA-T and is defined asthe design full load power consumption of the return fan perunit of return air moved for one hour. It is expressed inkW/cfm at sea level (or kW/standard cfm) and its defaultvalue is zero. This default value, and a similar value forIV.226 (Revised 5/81)

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