NREL · mdahlhausen · Mar 11, 2023 · Feb 24, 2023 · Feb 27, 2023 · Mar 9, 2023
diff --git a/data/standards/test_performance_expected_dd_results.csv b/data/standards/test_performance_expected_dd_results.csv
diff --git a/lib/openstudio-standards/prototypes/common/objects/Prototype.hvac_systems.rb b/lib/openstudio-standards/prototypes/common/objects/Prototype.hvac_systems.rb
@@ -371,6 +371,19 @@ def model_add_chw_loop(model,
         chiller.setChillerFlowMode('ConstantFlow')
         chiller.setSizingFactor(chiller_sizing_factor)
 
+        # use default efficiency from 90.1-2019
+        # 1.188 kw/ton for a 150 ton AirCooled chiller
+        # 0.66 kw/ton for a 150 ton Water Cooled positive displacement chiller
+        case chiller_cooling_type
+        when 'AirCooled'
+          default_cop = kw_per_ton_to_cop(1.188)
+        when 'WaterCooled'
+          default_cop = kw_per_ton_to_cop(0.66)
+        else
+          default_cop = kw_per_ton_to_cop(0.66)
+        end
+        chiller.setReferenceCOP(default_cop)
+
         # connect the chiller to the condenser loop if one was supplied
         if condenser_water_loop.nil?
           chiller.setCondenserType('AirCooled')

diff --git a/...doe_prototype/regression_models/Hospital-90.1-2004-ASHRAE 169-2013-4A_expected_result.osm b/...doe_prototype/regression_models/Hospital-90.1-2004-ASHRAE 169-2013-4A_expected_result.osm
diff --git a/...doe_prototype/regression_models/Hospital-90.1-2013-ASHRAE 169-2013-4A_expected_result.osm b/...doe_prototype/regression_models/Hospital-90.1-2013-ASHRAE 169-2013-4A_expected_result.osm
diff --git a/...doe_prototype/regression_models/Hospital-90.1-2016-ASHRAE 169-2013-4A_expected_result.osm b/...doe_prototype/regression_models/Hospital-90.1-2016-ASHRAE 169-2013-4A_expected_result.osm
diff --git a/...doe_prototype/regression_models/Hospital-90.1-2019-ASHRAE 169-2013-4A_expected_result.osm b/...doe_prototype/regression_models/Hospital-90.1-2019-ASHRAE 169-2013-4A_expected_result.osm
diff --git a/..._prototype/regression_models/LargeOffice-90.1-2004-ASHRAE 169-2013-4A_expected_result.osm b/..._prototype/regression_models/LargeOffice-90.1-2004-ASHRAE 169-2013-4A_expected_result.osm
diff --git a/..._prototype/regression_models/LargeOffice-90.1-2013-ASHRAE 169-2013-4A_expected_result.osm b/..._prototype/regression_models/LargeOffice-90.1-2013-ASHRAE 169-2013-4A_expected_result.osm
diff --git a/..._prototype/regression_models/LargeOffice-90.1-2016-ASHRAE 169-2013-4A_expected_result.osm b/..._prototype/regression_models/LargeOffice-90.1-2016-ASHRAE 169-2013-4A_expected_result.osm
diff --git a/..._prototype/regression_models/LargeOffice-90.1-2019-ASHRAE 169-2013-4A_expected_result.osm b/..._prototype/regression_models/LargeOffice-90.1-2019-ASHRAE 169-2013-4A_expected_result.osm