Sizing:System fixes and docs updates

doc/input-output-reference/src/overview/group-design-objects.tex

@@ -1504,7 +1504,7 @@ \subsubsection{Inputs}\label{inputs-5-007}
 
 \paragraph{Field Cooling Design Capacity Method}\label{field-cooling-design-capacity-method}
 
-Enter the method used to determine the cooling design capacity for scalable sizing. Input allowed is either \emph{None}, \emph{CoolingDesignCapacity}, \emph{CapacityPerFloorArea}, and \emph{FractionOfAutosizedCoolingCapacity}. None is used when a cooling coil is not included in the Zone HVAC equipment or this field may be left blank. If this input field is left blank, then the design cooling capacity is set to zero. \emph{CoolingDesignCapacity} means user specifies the magnitude of cooling capacity or the program calculates the design cooling capacity if autosize is specified. \emph{CapacityPerFloorArea} means the program calculates the design cooling capacity from user specified cooling capacity per floor area and floor area of the zone served by the HVAC unit. \emph{FractionOfAutosizedCoolingCapacity} means the program calculates the design cooling capacity from user specified fraction and the auto-sized design cooling capacity. The default method is \emph{CoolingDesignCapacity}.
+Enter the method used to determine the cooling design capacity for scalable sizing. Input allowed is either \emph{None}, \emph{CoolingDesignCapacity}, \emph{CapacityPerFloorArea}, and \emph{FractionOfAutosizedCoolingCapacity}. None is used when a cooling coil is not included in the zone HVAC equipment or this field may be left blank. If this input field is left blank, then the design cooling capacity is set to zero. \emph{CoolingDesignCapacity} means user specifies the magnitude of cooling capacity or the program calculates the design cooling capacity if autosize is specified. \emph{CapacityPerFloorArea} means the program calculates the design cooling capacity from user specified cooling capacity per floor area and floor area of the zone served by the HVAC unit. \emph{FractionOfAutosizedCoolingCapacity} means the program calculates the design cooling capacity from user specified fraction and the auto-sized design cooling capacity. The default method is \emph{CoolingDesignCapacity}.
 
 \paragraph{Field: Cooling Design Capacity \{W\}}\label{field-cooling-design-capacity-w}
 
@@ -1520,7 +1520,7 @@ \subsubsection{Inputs}\label{inputs-5-007}
 
 \paragraph{Field: Heating Design Capacity Method}\label{field-heating-design-capacity-method}
 
-Enter the method used to determine the heating design capacity for scalable sizing. Input allowed is either \emph{None}, \emph{HeatingDesignCapacity}, \emph{CapacityPerFloorArea}, and \emph{FractionOfAutosizedHeatingCapacity}. None is used when a heating coil is not included in the Zone HVAC equipment or this field may be left blank. If this input field is left blank, then the design heating capacity is set to zero. \emph{HeatingDesignCapacity} means user specifies the magnitude of heating capacity or the program calculates the design heating capacity if autosize is specified. \emph{CapacityPerFloorArea} means the program calculates the design heating capacity from user specified heating capacity per floor area and floor area of the zone served by the HVAC unit. \emph{FractionOfAutosizedHeatingCapacity} means the program calculates the design heating capacity from user specified fraction and the auto-sized design heating capacity. The default method is \emph{HeatingDesignCapacity}.
+Enter the method used to determine the heating design capacity for scalable sizing. Input allowed is either \emph{None}, \emph{HeatingDesignCapacity}, \emph{CapacityPerFloorArea}, and \emph{FractionOfAutosizedHeatingCapacity}. None is used when a heating coil is not included in the zone HVAC equipment or this field may be left blank. If this input field is left blank, then the design heating capacity is set to zero. \emph{HeatingDesignCapacity} means user specifies the magnitude of heating capacity or the program calculates the design heating capacity if autosize is specified. \emph{CapacityPerFloorArea} means the program calculates the design heating capacity from user specified heating capacity per floor area and floor area of the zone served by the HVAC unit. \emph{FractionOfAutosizedHeatingCapacity} means the program calculates the design heating capacity from user specified fraction and the auto-sized design heating capacity. The default method is \emph{HeatingDesignCapacity}.
 
 \paragraph{Field: Heating Design Capacity \{W\}}\label{field-heating-design-capacity-w}
 
@@ -1816,31 +1816,31 @@ \subsubsection{Inputs}\label{inputs-6-006}
 
 \paragraph{Field: Cooling Design Capacity \{W\}}\label{field-cooling-design-capacity-w-1}
 
-Enter the magnitude of the cooling capacity in Watts. This input is an alternative to using the program auto-calculated cooling capacity value. This input is a required field when the Cooling Design Capacity Method is \emph{CoolingDesignCapacity}. This field may be left blank if a cooling coil is not included in the air loop or alternative method is specified. This input field is autosizable.
+Enter the magnitude of the cooling capacity in Watts. This input is an alternative to using the program auto-calculated cooling capacity value. This input is a required field when the Cooling Design Capacity Method is \emph{CoolingDesignCapacity}. This field may be left blank if a cooling coil is not included in the airloop or alternative method is specified. This input field is autosizable. Design day sizing run must be specified.
 
 \paragraph{Field: Cooling Design Capacity Per Floor Area \{W/m2\}}\label{field-cooling-design-capacity-per-floor-area-wm2-1}
 
 Enter the cooling capacity per unit floor area in m3/s-m2. This field is required field when the Cooling Design Capacity Method is \emph{CapacityPerFloorArea}. This field may be left blank if a cooling coil is not included in the airloop or the Cooling Design Capacity Method is not \emph{CapacityPerFloorArea}. The program calculates the cooling capacity from floor area of the zones served by the airloop and the cooling capacity per unit floor area value specified by the user.
 
 \paragraph{Field: Fraction of Autosized Cooling Design Capacity}\label{field-fraction-of-autosized-cooling-design-capacity-1}
 
-Enter the cooling capacity as a fraction of the autosized cooling capacity. This input field is required when the Cooling Design Capacity Method is \emph{FractionOfAutosizedCoolingCapacity}. This input field may be left blank if a cooling coil is not included in the zone HVAC equipment or the Cooling Design Capacity Method is not \emph{FractionOfAutosizedCoolingCapacity}. The program calculates the cooling capacity from the design autosized cooling capacity and user specified fraction. Design day sizing run must be specified.
+Enter the cooling capacity as a fraction of the autosized cooling capacity. This input field is required when the Cooling Design Capacity Method is \emph{FractionOfAutosizedCoolingCapacity}. This input field may be left blank if a cooling coil is not included in the airloop or the Cooling Design Capacity Method is not \emph{FractionOfAutosizedCoolingCapacity}. The program calculates the cooling capacity from the design autosized cooling capacity and user specified fraction. Design day sizing run must be specified.
 
 \paragraph{Field: Heating Design Capacity Method}\label{field-heating-design-capacity-method-1}
 
 Enter the method used to determine the heating design capacity for scalable sizing. Input allowed is either \emph{None}, \emph{HeatingDesignCapacity}, \emph{CapacityPerFloorArea}, and \emph{FractionOfAutosizedHeatingCapacity}. \emph{None} is used when a heating coil is not included in the airloop. If this input field is left blank, then the autosized design heating capacity determined by the program is used. \emph{HeatingDesignCapacity} means user specifies the magnitude of heating capacity or the program calculates the design heating capacity if autosize is specified. \emph{CapacityPerFloorArea} means the program calculates the design heating capacity from user specified heating capacity per floor area and floor area of the zones served by the airllop. \emph{FractionOfAutosizedHeatingCapacity} means the program calculates the design heating capacity from user specified fraction and the auto-sized design heating capacity. If the value this input field is blank or specified as None, then the next three input fields are not required. The default method is \emph{HeatingDesignCapacity}.
 
 \paragraph{Field: Heating Design Capacity \{W\}}\label{field-heating-design-capacity-w-1}
 
-Enter the magnitude of the heating capacity in Watts. This input is an alternative to using the program auto-calculated heating capacity value. This input is a required field when the Heating Design Capacity Method is \emph{HeatingDesignCapacity}. This field may be left blank if a heating coil is not included in the airloop or alternative method is specified. This input field is autosizable.
+Enter the magnitude of the heating capacity in Watts. This input is an alternative to using the program auto-calculated heating capacity value. This input is a required field when the Heating Design Capacity Method is \emph{HeatingDesignCapacity}. This field may be left blank if a heating coil is not included in the airloop or alternative method is specified. This input field is autosizable. Design day sizing run must be specified.
 
 \paragraph{Field: Heating Design Capacity Per Floor Area \{W/m2\}}\label{field-heating-design-capacity-per-floor-area-wm2-1}
 
 Enter the heating capacity per unit floor area in m3/s-m2. This field is required field when the Heating Design Capacity Method is \emph{CapacityPerFloorArea}. This field may be left blank if a heating coil is not included in the airloop or the Heating Design Capacity Method is not \emph{CapacityPerFloorArea}. The program calculates the heating capacity from floor area of the zones served by the airloop and the heating capacity per unit floor area value specified by the user.
 
 \paragraph{Field: Fraction of Autosized Heating Design Capacity}\label{field-fraction-of-autosized-heating-design-capacity-1}
 
-Enter the heating capacity as a fraction of the autosized heating capacity. This input field is required when the Heating Design Capacity Method is FractionOfAutosizedHeatingCapacity. This input field may be left blank if heating coil is not included in the airloop or the Heating Design Capacity Method is not FractionOfAutosizedHeatingCapacity. The program calculates the heating capacity from the design autosized cooling capacity and user specified fraction.
+Enter the heating capacity as a fraction of the autosized heating capacity. This input field is required when the Heating Design Capacity Method is \emph{FractionOfAutosizedHeatingCapacity}. This input field may be left blank if a heating coil is not included in the airloop or the Heating Design Capacity Method is not \emph{FractionOfAutosizedHeatingCapacity}. The program calculates the heating capacity from the design autosized cooling capacity and user specified fraction. Design day sizing run must be specified.
 
 \paragraph{Field: Central Cooling Capacity Control Method}\label{field-central-cooling-capacity-control-method}
 

src/EnergyPlus/UnitarySystem.cc

@@ -1905,6 +1905,7 @@ namespace UnitarySystems {
                 bool errorsFound = false;
                 HeatingCapacitySizer sizerHeatingCapacity;
                 sizerHeatingCapacity.overrideSizingString(SizingString);
+                state.dataSize->DataFracOfAutosizedHeatingCapacity = heatingCapacityMultiplier;
                 sizerHeatingCapacity.initializeWithinEP(state, CompType, CompName, PrintFlag, RoutineName);
                 HeatCapAtPeak = sizerHeatingCapacity.size(state, TempSize, errorsFound);
                 if (state.dataSize->CurSysNum > 0) {
@@ -1930,6 +1931,7 @@ namespace UnitarySystems {
                         bool errorsFound = false;
                         HeatingCapacitySizer sizerHeatingCapacity;
                         sizerHeatingCapacity.overrideSizingString(SizingString);
+                        state.dataSize->DataFracOfAutosizedHeatingCapacity = heatingCapacityMultiplier;
                         sizerHeatingCapacity.initializeWithinEP(state, CompType, CompName, PrintFlag, RoutineName);
                         HeatCapAtPeak = sizerHeatingCapacity.size(state, TempSize, errorsFound);
                         if (state.dataSize->CurSysNum > 0) {

testfiles/AirflowNetwork_MultiZone_House_OvercoolDehumid.idf

@@ -2231,10 +2231,10 @@
     autosize,                !- Cooling Design Capacity {W}
     ,                        !- Cooling Design Capacity Per Floor Area {W/m2}
     ,                        !- Fraction of Autosized Cooling Design Capacity
-    HeatingDesignCapacity,   !- Heating Design Capacity Method
+    FractionOfAutosizedHeatingCapacity,   !- Heating Design Capacity Method
     autosize,                !- Heating Design Capacity {W}
     ,                        !- Heating Design Capacity Per Floor Area {W/m2}
-    ,                        !- Fraction of Autosized Heating Design Capacity
+    1.5,                        !- Fraction of Autosized Heating Design Capacity
     VAV;                     !- Central Cooling Capacity Control Method
 
   AirLoopHVAC:UnitaryHeatCool,
@@ -2244,8 +2244,8 @@
     Air Loop Outlet Node,    !- Unitary System Air Outlet Node Name
     CyclingFanSchedule,      !- Supply Air Fan Operating Mode Schedule Name
     50,                      !- Maximum Supply Air Temperature {C}
-    1.02,                    !- Cooling Supply Air Flow Rate {m3/s}
-    1.02,                    !- Heating Supply Air Flow Rate {m3/s}
+    autosize,                !- Cooling Supply Air Flow Rate {m3/s}
+    autosize,                !- Heating Supply Air Flow Rate {m3/s}
     0,                       !- No Load Supply Air Flow Rate {m3/s}
     LIVING ZONE,             !- Controlling Zone or Thermostat Location
     Fan:OnOff,               !- Supply Fan Object Type
@@ -2325,7 +2325,7 @@
     HVACAvailSched,          !- Availability Schedule Name
     NaturalGas,              !- Fuel Type
     0.8,                     !- Burner Efficiency
-    25000,                   !- Nominal Capacity {W}
+    autosize,                !- Nominal Capacity {W}
     Heating Coil Air Inlet Node,  !- Air Inlet Node Name
     Fan Inlet Node;          !- Air Outlet Node Name
 
@@ -2334,7 +2334,7 @@
     HVACAvailSched,          !- Availability Schedule Name
     NaturalGas,              !- Fuel Type
     0.8,                     !- Burner Efficiency
-    25000,                   !- Nominal Capacity {W}
+    autosize,                !- Nominal Capacity {W}
     Reheat Coil Air Inlet Node,  !- Air Inlet Node Name
     Air Loop Outlet Node;    !- Air Outlet Node Name