lib/openstudio-standards/standards/Standards.ZoneHVACComponent.rb in openstudio-standards-0.2.16 vs lib/openstudio-standards/standards/Standards.ZoneHVACComponent.rb in openstudio-standards-0.2.17.rc1

@@ -84,9 +84,50 @@
     OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.ZoneHVACComponent', "For #{zone_hvac_component.name}: fan efficacy set to #{fan_efficacy_new_w_per_cfm.round(2)} W/cfm.")
 
     return true
   end
 
+  # Get the supply fan object for a zone equipment component
+  # @author Doug Maddox, PNNL
+  # @param zone_hvac_component [object]
+  # @return [object] supply fan of zone equipment component
+  def zone_hvac_get_fan_object(zone_hvac_component)
+    zone_hvac = nil
+    # Check for any zone equipment type that has a supply fan
+    # except EnergyRecoveryVentilator, which is not a primary conditioning system
+    zone_hvac = if zone_hvac_component.to_ZoneHVACFourPipeFanCoil.is_initialized
+                  zone_hvac_component.to_ZoneHVACFourPipeFanCoil.get
+                elsif zone_hvac_component.to_ZoneHVACPackagedTerminalAirConditioner.is_initialized
+                  zone_hvac_component.to_ZoneHVACPackagedTerminalAirConditioner.get
+                elsif zone_hvac_component.to_ZoneHVACPackagedTerminalHeatPump.is_initialized
+                  zone_hvac_component.to_ZoneHVACPackagedTerminalHeatPump.get
+                elsif zone_hvac_component.to_ZoneHVACTerminalUnitVariableRefrigerantFlow.is_initialized
+                  zone_hvac_component.to_ZoneHVACTerminalUnitVariableRefrigerantFlow.get
+                elsif zone_hvac_component.to_ZoneHVACUnitHeater.is_initialized
+                  zone_hvac_component.to_ZoneHVACUnitHeater.get
+                elsif zone_hvac_component.to_ZoneHVACUnitVentilator.is_initialized
+                  zone_hvac_component.to_ZoneHVACUnitVentilator.get
+                elsif zone_hvac_component.to_ZoneHVACWaterToAirHeatPump.is_initialized
+                  zone_hvac_component.to_ZoneHVACWaterToAirHeatPump.get
+                end
+
+    # Get the fan
+    if !zone_hvac.nil?
+      fan_obj = if zone_hvac.supplyAirFan.to_FanConstantVolume.is_initialized
+                  zone_hvac.supplyAirFan.to_FanConstantVolume.get
+                elsif zone_hvac.supplyAirFan.to_FanVariableVolume.is_initialized
+                  zone_hvac.supplyAirFan.to_FanVariableVolume.get
+                elsif zone_hvac.supplyAirFan.to_FanOnOff.is_initialized
+                  zone_hvac.supplyAirFan.to_FanOnOff.get
+                elsif zone_hvac.supplyAirFan.to_FanSystemModel.is_initialized
+                  zone_hvac.supplyAirFan.to_FanSystemModel.get
+                end
+      return fan_obj
+    else
+      return nil
+    end
+  end
+
   # Default occupancy fraction threshold for determining if the spaces served by the zone hvac are occupied
   #
   # @return [Double] unoccupied threshold
   def zone_hvac_unoccupied_threshold
     return 0.15