DOE-2 Reference Manual Version 2.1 - DOE2.com

HEATING-EIRcapacity for other temperature values. The equation shouldbe normalized so that at rated conditions its value is 1.0(that is, where total heating capacity equalsHEATING-CAPACITY). This keyword is always appropriate tothe HP system and is appropriate to the RESYS and PTACsystems when HEAT-SOURCE ~ HEAT-PUMP.is the Electric Input Ratio, or 11 heating Coefficient ofPerformance for the heat pump. This EIR is at ARI ratedconditions, that is, without corrections for temperatureand part load. The program-designed HEATING-EIR does notinclude fan power and heat. This keyword is appropriateonly to HP, RESYS, and PTAC systems.HEAT -EIR-FT * is the U-name of a bi-linear or bi-quadratic equation thatdescribes the heat pump Electric Input Ratio (dependentvariable) as a function of outdoor dry-bulb temperatureand entering dry-bulb temperature (independent variables).The bi-linear or bi-quadratic equation must be input tothe program and U-named in a CURVE-FIT instruction. Theequation should be normalized so that at rated conditionsits value is 1.0 (that is, where the full load electricinput ratio for heating equals HEATING-EIR). This keywordis appropriate only to HP, RESYS, and PTAC systems.HEAT-EIR-FPLR * is the U-name of a linear, quadratic, or cubic equationthat describes the heat pump Electric Input Ratio forheating (dependent variable) as a function of part loadratio, PLR, (independent variable). The linear, quadratic,or cubic equation must be input to the program andU-named in a CURVE-FIT instruction. The equation shouldbe normalized so that at rated conditions its value is 1.0.This key word is appropriate only to HP, RESYS, and PTACsystems.If the RATED-CFM (see SYSTEM-AIR or ZONE-AIR) of the supply air fan isdifferent from the SUPPLY-CFM (see SYSTEM-AIR) or ASSIGNED-CFM (see ZONE-AIR),the user may choose to enter values for the following two keywords. Ifhowever, the user omits entries for the following two keywords, the programwill calculate their polynomials as a function of SUPPLY-CFMI RATED-CFM forcentral systems and as a function of ASSIGNED-CFM/RATED-CFM for zonal systems.RATED-HCAP-FCFM *is the U-name of a linear, quadratic, or cubic equationthat describes the rated heating capacity (dependent*Input for this keyword should be made only if the user is not satisfiedwith the default values built into the program. Additionally, if theuser decides to specify a U-name, it should not be one of the reserved"Default Curve U-names" in Table IV.39. Furthermore, these U-names areapplicable only to the SYSTEM-TYPEs stated in the table.IV.250 (Revised 5/81)