Address energy outside of an HVAC season or during unavailable period by joseph-robertson · Pull Request #2151 · NatLabRockies/OpenStudio-HPXML

joseph-robertson · 2026-01-22T00:03:16Z

Pull Request Description

Addresses #2149, model the crankcase heater via EMS so that it can be disallowed during power outages.

Checklist

Not all may apply:

Schematron validator (EPvalidator.sch) has been updated
Sample files have been added/updated (openstudio tasks.rb update_hpxmls)
Tests have been added/updated (e.g., HPXMLtoOpenStudio/tests/test*.rb and/or workflow/tests/test*.rb)
Documentation has been updated
Changelog has been updated
openstudio tasks.rb update_measures has been run
No unexpected changes to simulation results of sample files

…riods in defrost, pan, and crankcase ems programs.

…ase.

joseph-robertson · 2026-01-26T17:17:30Z

HPXMLtoOpenStudio/resources/hvac.rb

+      # Don't run crankcase heater during HVAC unavailable period either
+      temp_criteria += " && (#{hvac_avail_sensor.name} == 1)"


Should this only run when (A) AC and cooling available, and (B) HP and either heating/cooling available?

joseph-robertson · 2026-01-26T21:30:52Z

HPXMLtoOpenStudio/resources/hvac.rb

+      name: "#{clg_coil.name} crankcase program"
+    )
+    program.addLine("Set T_out = #{tout_db_sensor.name}")
+    temp_criteria = "If (T_out < #{max_oat_crankcase})"


Crankcase heater only operates when the compressor is not running -- how do we incorporate that here?

1 minus the coil runtime fraction?

e.g., crankcase_power * (1 - coil_rtf)

You don't incorporate it in the criteria, you incorporate it in the energy use calculation.

joseph-robertson · 2026-02-02T17:52:07Z

workflow/tests/base_results/results_simulations_energy.csv

-base-hvac-air-to-air-heat-pump-var-speed-pan-heater-none.xml,52.657,52.657,52.657,52.657,0.0,0.0,0.0,0.0,0.0,0.0,13.275,1.067,2.3,0.011,3.764,0.458,10.77,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.074,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
-base-hvac-air-to-air-heat-pump-var-speed-research-features.xml,53.164,53.164,53.164,53.164,0.0,0.0,0.0,0.0,0.0,0.0,13.643,1.36,2.14,0.017,3.764,0.46,10.771,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.072,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
-base-hvac-air-to-air-heat-pump-var-speed.xml,53.503,53.503,53.503,53.503,0.0,0.0,0.0,0.0,0.0,0.0,14.121,1.067,2.3,0.011,3.764,0.458,10.77,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.074,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
+base-hvac-air-to-air-heat-pump-2-speed.xml,52.895,52.895,52.895,52.895,0.0,0.0,0.0,0.0,0.0,0.0,11.775,1.245,3.477,0.071,4.057,0.489,10.77,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.074,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0


I'm struggling to understand why the new crankcase EMS program shows agreement for 1-speed ASHP, but not multispeed ASHP. See the following, where the original crankcase output variable is reported vs the EMS power * (1 - RTF) calculation. Is there something other than RTF that E+ uses for determining whether the compressor is running or not?

This definitely looks related: NatLabRockies/EnergyPlus#10052

The above issue is somewhat related, but not the cause of the discrepancy. This commit should bring E+ crankcase and EMS crankcase into alignment: ecdc565

joseph-robertson · 2026-02-04T19:07:12Z

workflow/tests/base_results/results_simulations_energy.csv

 base-hvac-air-to-air-heat-pump-var-speed-detailed-performance.xml,56.092,56.092,56.092,56.092,0.0,0.0,0.0,0.0,0.0,0.0,14.02,1.462,3.162,0.044,5.195,0.428,10.77,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.074,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
 base-hvac-air-to-air-heat-pump-var-speed-max-power-ratio-schedule-10-mins.xml,54.018,54.018,54.018,54.018,0.0,0.0,0.0,0.0,0.0,0.0,13.789,1.379,2.63,0.028,3.924,0.487,10.773,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.072,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
-base-hvac-air-to-air-heat-pump-var-speed-max-power-ratio-schedule-two-systems.xml,51.274,51.274,51.274,51.274,0.0,0.0,0.0,0.0,0.0,0.0,13.666,0.625,1.882,0.0,3.141,0.181,10.769,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.075,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
+base-hvac-air-to-air-heat-pump-var-speed-max-power-ratio-schedule-two-systems.xml,51.287,51.287,51.287,51.287,0.0,0.0,0.0,0.0,0.0,0.0,13.678,0.625,1.882,0.0,3.141,0.181,10.769,0.0,0.0,4.507,0.0,0.334,0.0,0.0,0.0,0.0,2.075,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0


This one needs more investigation. It looks like, using calling point InsideHVACSystemIterationLoop, sensor values for "Unitary System DX Coil Cycling Ratio" in the program do not match what is ultimately reported.

For example, in the following I am setting the far right EMS column to the value of the cycling ratio sensor in the program. At hour 5, the reported value is 1 but the value seen in the program is 0.

Changing InsideHVACSystemIterationLoop -> EndOfSystemTimestepBeforeHVACReporting in 2afbc95 seems to do the trick. Not totally sure why.

…stepBeforeHVACReporting.

joseph-robertson · 2026-03-16T20:16:03Z

HPXMLtoOpenStudio/resources/constants.rb

  ObjectTypeMiscWellPump = 'misc well pump'
  ObjectTypeNaturalVentilation = 'natural vent'
  ObjectTypeNeighbors = 'neighbors'
+  ObjectTypeOATDrybulbSensor = 'outdoor air drybulb temperature sensor'


This is used for both defrost and crankcase.

joseph-robertson · 2026-03-16T20:17:32Z

HPXMLtoOpenStudio/resources/constants.rb

  ObjectTypeNeighbors = 'neighbors'
+  ObjectTypeOATDrybulbSensor = 'outdoor air drybulb temperature sensor'
  ObjectTypeOccupants = 'occupants'
+  ObjectTypeCrankcaseHeater = 'crankcase heater'


This is the new "end use" for actuated other equipment objects.

joseph-robertson · 2026-03-16T20:20:31Z

HPXMLtoOpenStudio/resources/hvac.rb

+    coil_name = clg_coil.name.to_s
+    if (heat_pump.is_a? HPXML::HeatPump) && (heat_pump.fraction_heat_load_served > 0)
+      coil_name = htg_coil.name.to_s
+    else
+      htg_coil = nil
+    end


By default, use the cooling coil name in the actuated object and program names. Unless it's a heat pump that provides heating -- then use the heating coil name.

joseph-robertson · 2026-03-16T20:21:40Z

HPXMLtoOpenStudio/resources/hvac.rb

+    if heat_pump.is_a? HPXML::CoolingSystem
+      crankcase_heater_energy_oe.additionalProperties.setFeature('FractionHeatLoadServed', 0.0) # Used by reporting measure
+    elsif heat_pump.is_a? HPXML::HeatPump
+      crankcase_heater_energy_oe.additionalProperties.setFeature('FractionHeatLoadServed', heat_pump.fraction_heat_load_served) # Used by reporting measure
+    end


Used by the reporting measure for allocating crankcase either to heating or cooling end use.

joseph-robertson · 2026-03-16T20:24:51Z

HPXMLtoOpenStudio/resources/hvac.rb

+    else
+      program.addLine('Set cyc_ratio = 0')
+    end
+    temp_criteria = "If (T_out < #{max_oat_crankcase}) && (cyc_ratio < 1)"


Cycling ratio is 1 for multispeed objects operating at speeds above 1 (i.e., compressor is not off).

joseph-robertson · 2026-03-16T20:26:09Z

HPXMLtoOpenStudio/resources/hvac.rb

      clg_sys.cooling_capacity *= unit_multiplier
      clg_sys.cooling_design_airflow_cfm *= unit_multiplier
      clg_ap.cooling_actual_airflow_cfm *= unit_multiplier
-      clg_sys.crankcase_heater_watts *= unit_multiplier unless clg_sys.crankcase_heater_watts.nil?


Meters incoporate thermal zone multipliers.

joseph-robertson · 2026-03-16T20:27:08Z

HPXMLtoOpenStudio/resources/output.rb

-        if object.additionalProperties.getFeatureAsDouble('FractionHeatLoadServed').is_initialized && object.additionalProperties.getFeatureAsDouble('FractionHeatLoadServed').get <= 0
-          # HP only provides cooling, allocate crankcase to cooling end use
-          vars[[FT::Elec, EUT::Cooling]] = ['Heating Coil Crankcase Heater Electricity Energy']
-        else
-          # Allocate crankcase to heating end use
-          vars[[FT::Elec, EUT::Heating]] << 'Heating Coil Crankcase Heater Electricity Energy'
-        end


This allocation logic (and some below) is moved to the OtherEquipment block.

joseph-robertson · 2026-03-16T20:28:46Z

HPXMLtoOpenStudio/tests/test_hvac.rb

  end

-  def test_heat_pump_defrost_and_pan_heater
+  def test_heat_pump_defrost_and_pan_heater_and_crankcase_heater


Move the existing crankcase test into here since we're now, like defrost and pan heater, using EMS programs.

joseph-robertson · 2026-03-16T20:34:07Z

workflow/tests/base_results/results_simulations_energy.csv

+base-residents-5-5.xml,85.91,65.659,51.703,31.451,34.208,0.0,0.0,0.0,0.0,0.0,0.0,1.065,0.0,0.0,2.232,0.43,8.644,0.0,0.328,4.507,0.0,0.334,1.14,0.0,0.0,1.174,2.163,0.0,0.0,0.593,0.511,3.798,2.36,0.745,3.423,10.263,0.0,0.0,0.0,0.0,0.0,-20.251,0.0,0.342,7.652,34.208,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
 base-schedules-detailed-all-10-mins.xml,71.755,71.755,39.573,39.573,32.181,0.0,0.0,0.0,0.0,0.0,0.0,1.002,0.0,0.0,5.512,1.267,10.778,0.0,0.0,4.51,0.0,0.334,0.0,0.0,0.0,0.0,2.077,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,32.181,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
-base-schedules-detailed-mixed-timesteps-power-outage.xml,37.62,37.62,30.798,30.798,6.823,0.0,0.0,0.0,0.0,0.0,0.0,0.212,0.0,0.0,3.926,0.847,8.726,0.0,0.0,3.618,0.0,0.267,0.0,0.0,0.0,0.0,1.69,0.0,0.0,0.238,0.296,1.183,1.275,0.0,1.713,6.806,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,6.823,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
+base-schedules-detailed-mixed-timesteps-power-outage.xml,37.531,37.531,30.709,30.709,6.823,0.0,0.0,0.0,0.0,0.0,0.0,0.212,0.0,0.0,3.837,0.847,8.726,0.0,0.0,3.618,0.0,0.267,0.0,0.0,0.0,0.0,1.69,0.0,0.0,0.238,0.296,1.183,1.275,0.0,1.713,6.806,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,6.823,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0


The 3.926 -> 3.837 is expected decrease since "it is now possible to eliminate all HVAC energy use (e.g. crankcase/defrost energy) in EnergyPlus during an unavailable period."

joseph-robertson · 2026-03-16T20:34:19Z

workflow/tests/base_results/results_simulations_energy.csv

 base-schedules-detailed-occupancy-stochastic-no-space-cooling.xml,68.334,68.334,36.884,36.884,31.45,0.0,0.0,0.0,0.0,0.0,0.0,0.979,0.0,0.0,3.34,0.759,10.762,0.0,0.0,4.51,0.0,0.334,0.0,0.0,0.0,0.0,2.106,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,31.45,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
 base-schedules-detailed-occupancy-stochastic-no-space-heating.xml,66.558,66.558,39.177,39.177,27.38,0.0,0.0,0.0,0.0,0.0,0.0,0.852,0.0,0.0,5.314,1.231,10.781,0.0,0.0,4.51,0.0,0.334,0.0,0.0,0.0,0.0,2.061,0.0,0.0,0.284,0.347,1.436,1.529,0.0,2.116,8.384,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,27.38,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
-base-schedules-detailed-occupancy-stochastic-power-outage.xml,52.628,52.628,32.948,32.948,19.68,0.0,0.0,0.0,0.0,0.0,0.0,0.613,0.0,0.0,5.292,1.225,8.667,0.0,0.0,3.618,0.0,0.267,0.0,0.0,0.0,0.0,1.754,0.0,0.0,0.238,0.296,1.183,1.275,0.0,1.713,6.806,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,19.68,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
+base-schedules-detailed-occupancy-stochastic-power-outage.xml,52.54,52.54,32.86,32.86,19.68,0.0,0.0,0.0,0.0,0.0,0.0,0.613,0.0,0.0,5.204,1.225,8.667,0.0,0.0,3.618,0.0,0.267,0.0,0.0,0.0,0.0,1.754,0.0,0.0,0.238,0.296,1.183,1.275,0.0,1.713,6.806,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,19.68,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0


Again, expected decrease.

…HPXML into address-crankcase-defrost-pan-warning # Conflicts: # HPXMLtoOpenStudio/measure.xml # ReportSimulationOutput/measure.xml # workflow/tests/base_results/results_simulations_misc.csv

joseph-robertson added 3 commits January 21, 2026 16:55

Add new sample files for heat pump with hvac seasons, power outage.

8758181

Add crankcase ems program, and use hvac seasons and unavailability pe…

aae60b1

…riods in defrost, pan, and crankcase ems programs.

Update tests and docs.

e1c4950

joseph-robertson self-assigned this Jan 22, 2026

github-project-automation bot added this to OpenStudio-HPXML Jan 22, 2026

github-project-automation bot moved this to Triage in OpenStudio-HPXML Jan 22, 2026

joseph-robertson added 3 commits January 21, 2026 17:04

Merge branch 'master' into address-crankcase-defrost-pan-warning

0ff6650

Crankcase into its own program, and remove season from pan and crankc…

1a40627

…ase.

Update defrost/pan/crankcase ems test for crankcase changes.

554afd1

joseph-robertson changed the title ~~Address crankcase/defrost/pan energy outside of an HVAC season or heating unavailable period~~ Address energy outside of an HVAC season or during unavailable period Jan 22, 2026

joseph-robertson and others added 4 commits January 22, 2026 16:29

Remove old crankcase unit test.

2873982

Deal with crankcase allocation to heating or cooling.

e526e25

Latest results.

6eeaa29

Crankcase allows zero capacity; slight program fix.

3316eab

joseph-robertson commented Jan 26, 2026

View reviewed changes

GitHub Action and others added 3 commits January 26, 2026 18:10

Latest results.

51bb6a7

Merge branch 'master' into address-crankcase-defrost-pan-warning

897e276

Use heating and/or cooling availability sensors for crankcase operation.

a215af2

joseph-robertson commented Jan 26, 2026

View reviewed changes

GitHub Action and others added 6 commits January 26, 2026 22:22

Latest results.

8ba115f

Use heating coil runtime fraction for crankcase calculation.

3a05c70

Revise and simplify ems logic for unavailable periods.

8c263cb

Revert clg_coil addition in hvac test.

61a3792

Latest results.

c1c8046

Set additional properties for hp heating tout and rtf sensors.

9345759

joseph-robertson commented Feb 2, 2026

View reviewed changes

joseph-robertson added 4 commits February 2, 2026 10:58

Update measure xml.

2abcd8e

Merge branch 'master' into address-crankcase-defrost-pan-warning

cd0d7ab

Put hp heating tout and rtf sensors upstream of defrost and crankcase.

641094c

Introduce a new sensor for unitary system.

5e0541d

joseph-robertson added 4 commits February 2, 2026 16:01

Bring cycling ratio into the calculation for multispeed objects.

ecdc565

Update measure xml file.

c8dd252

Organize ems sensors.

f1da956

Introduce the cooling coil runtime fraction sensor.

b85e3c4

shorowit moved this from Triage to In progress in OpenStudio-HPXML Feb 3, 2026

Latest results.

5147828

joseph-robertson commented Feb 4, 2026

View reviewed changes

joseph-robertson and others added 12 commits February 4, 2026 16:43

Merge branch 'master' into address-crankcase-defrost-pan-warning

ba58f27

Latest results.

a4f9f01

Merge branch 'master' into address-crankcase-defrost-pan-warning

13fab78

Latest results.

fd4513d

Merge branch 'master' into address-crankcase-defrost-pan-warning

63dd002

Remove model from being passed into get_object_outputs_by_key.

439a213

Latest results.

76cddff

Merge branch 'master' into address-crankcase-defrost-pan-warning

5c2f362

Latest results.

54238a3

Change calling point InsideHVACSystemIterationLoop -> EndOfSystemTime…

2afbc95

…stepBeforeHVACReporting.

Latest results.

44ea2e1

Replace a few remaining TODO comments. [ci skip]

5e820e6

joseph-robertson commented Mar 16, 2026

View reviewed changes

Update the changelog. [ci skip]

c585f32

joseph-robertson marked this pull request as ready for review March 16, 2026 20:46

joseph-robertson requested a review from shorowit March 16, 2026 20:47

joseph-robertson and others added 5 commits March 31, 2026 10:51

Merge branch 'master' into address-crankcase-defrost-pan-warning

5e8f794

Remove passing model into get_object_outputs_by_key.

69e7703

Latest results.

a6d7be1

Merge branch 'master' of https://github.com/NatLabRockies/OpenStudio-…

546ddbb

…HPXML into address-crankcase-defrost-pan-warning # Conflicts: # HPXMLtoOpenStudio/measure.xml # ReportSimulationOutput/measure.xml # workflow/tests/base_results/results_simulations_misc.csv

Latest results.

9c4b80b

shorowit mentioned this pull request Apr 7, 2026

Refactor sensors #2189

Draft

7 tasks

		# Don't run crankcase heater during HVAC unavailable period either
		temp_criteria += " && (#{hvac_avail_sensor.name} == 1)"

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joseph-robertson commented Jan 22, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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joseph-robertson commented Jan 22, 2026 •

edited

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