EnergyPlus

COPYRIGHT 1996-2014 The Board of Trustees of the University of Illinois and the Regents of the University of California through the Ernest Orlando Lawrence Berkeley National Laboratory. All Rights Reserved. No part of this material may be reproduced or transmitted in any form or by any means without the prior written permission of the University of Illinois or the Ernest Orlando Lawrence Berkeley National Laboratory. EnergyPlus is a Trademark of the US Department of Energy.

Input Output Reference

The Encyclopedic Reference to EnergyPlus Input and Output

Date: September 29, 2014

TABLE OF CONTENTS

9/29/14 i

Input-Output Reference ................................................................................................................... 1

Whats different about EnergyPlus Input and Output? ..................................................... 1

EnergyPlus Input Processing ..................................................................................... 1

General Input Rules ................................................................................................... 2

EnergyPlus Output Processing .................................................................................. 2

IDD Conventions ............................................................................................................. 3

IDD IP Units ............................................................................................................ 6

Input Output Descriptions (Document) .......................................................................... 9

Input Descriptions ...................................................................................................... 9

Output Descriptions ................................................................................................. 10

Group -- Simulation Parameters .................................................................................... 11

Version .................................................................................................................... 11

Timestep ................................................................................................................. 11

ConvergenceLimits .................................................................................................. 13

Building ................................................................................................................... 14

SurfaceConvectionAlgorithm:Inside ......................................................................... 20

SurfaceConvectionAlgorithm:Outside ...................................................................... 21

HeatBalanceAlgorithm ............................................................................................. 22

HeatBalanceSettings:ConductionFiniteDifference ................................................... 23

ZoneAirHeatBalanceAlgorithm ................................................................................ 24

ZoneAirContaminantBalance ................................................................................... 24

Carbon Dioxide Outputs .......................................................................................... 25

Generic Contaminant Outputs ................................................................................. 25

ShadowCalculation .................................................................................................. 25

Output:Diagnostics .................................................................................................. 27

Output:DebuggingData ............................................................................................ 28

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9/29/14 ii

Output:PreprocessorMessage ................................................................................. 28

ZoneCapacitanceMultiplier:ResearchSpecial........................................................... 29

SimulationControl .................................................................................................... 29

ProgramControl ....................................................................................................... 30

Meter:Custom .......................................................................................................... 31

Meter:CustomDecrement......................................................................................... 31

Custom Meter Examples ......................................................................................... 32

Simulation Parameter Outputs ................................................................................. 33

Group Compliance Objects ........................................................................................ 33

Compliance:Building ................................................................................................ 33

Group -- Location Climate Weather File Access ...................................................... 34

Site:Location............................................................................................................ 34

SizingPeriod:DesignDay .......................................................................................... 34

Sizing Period Design Day Outputs ........................................................................... 41

Longer Design Periods ............................................................................................ 42

SizingPeriod:WeatherFileDays ................................................................................ 42

SizingPeriod:WeatherFileConditionType ................................................................. 43

RunPeriod ............................................................................................................... 44

RunPeriod:CustomRange ........................................................................................ 47

RunPeriodControl:SpecialDays ............................................................................... 49

RunPeriodControl:DaylightSavingTime .................................................................... 50

WeatherProperty:SkyTemperature .......................................................................... 51

Site:WeatherStation ................................................................................................. 52

Site:HeightVariation ................................................................................................. 53

Site:GroundTemperature:BuildingSurface ............................................................... 54

Site:GroundTemperature:Shallow ............................................................................ 55

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9/29/14 iii

Site:GroundTemperature:Deep ............................................................................... 55

Site:GroundDomain ................................................................................................. 55

Site:GroundDomain Outputs .................................................................................... 60

Site:GroundTemperature:FCfactorMethod ............................................................... 60

Site:GroundReflectance .......................................................................................... 60

Site:GroundReflectance:SnowModifier .................................................................... 61

Site:WaterMainsTemperature .................................................................................. 61

Site:Precipitation ..................................................................................................... 62

RoofIrrigation ........................................................................................................... 63

Solar and Visible Spectrum Objects ........................................................................ 64

Site:SolarAndVisibleSpectrum ................................................................................. 64

Site:SpectrumData .................................................................................................. 65

Climate Group Outputs ............................................................................................ 65

Weather Data Related Outputs ................................................................................ 65

Outputs for local temperature/wind speed calculations ............................................ 69

Group -- Schedules ....................................................................................................... 70

Day Type ................................................................................................................. 71

ScheduleTypeLimits ................................................................................................ 71

Day Schedules ........................................................................................................ 72

Schedule:Day:Hourly ............................................................................................... 72

Schedule:Day:Interval ............................................................................................. 73

Schedule:Day:List ................................................................................................... 73

Week Schedule(s) ................................................................................................... 74

Schedule:Week:Daily .............................................................................................. 74

Schedule:Week:Compact ........................................................................................ 75

Schedule:Year ......................................................................................................... 75

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9/29/14 iv

Schedule:Compact .................................................................................................. 76

Schedule:Constant .................................................................................................. 78

Schedule:File ........................................................................................................... 78

Schedule Outputs .................................................................................................... 80

Group Surface Construction Elements ....................................................................... 81

Specifying the Building Envelope ............................................................................. 81

Material and Material Properties .............................................................................. 81

Material ................................................................................................................... 82

Material:NoMass ..................................................................................................... 84

Material:InfraredTransparent ................................................................................... 85

Material:AirGap ....................................................................................................... 86

MaterialProperty:MoisturePenetrationDepth:Settings .............................................. 86

Moisture Penetration Depth (EMPD) Outputs .......................................................... 88

MaterialProperty:PhaseChange ............................................................................... 88

MaterialProperty:VariableThermalConductivity ........................................................ 90

Conduction Finite Difference (CondFD) Outputs ...................................................... 91

MaterialProperty:HeatAndMoistureTransfer:Settings ............................................... 91

MaterialProperty:HeatAndMoistureTransfer:SorptionIsotherm ................................. 92

MaterialProperty:HeatAndMoistureTransfer:Suction ................................................ 93

MaterialProperty:HeatAndMoistureTransfer:Redistribution ...................................... 94

MaterialProperty:HeatAndMoistureTransfer:Diffusion .............................................. 94

MaterialProperty:HeatAndMoistureTransfer:ThermalConductivity ............................ 95

Heat and Moisture (HAMT) Outputs ........................................................................ 96

Materials for Glass Windows and Doors .................................................................. 97

WindowMaterial:Glazing .......................................................................................... 97

WindowMaterial:Glazing:RefractionExtinctionMethod ............................................ 101

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9/29/14 v

Glass Optical Properties Conversion ..................................................................... 102

WindowMaterial:GlazingGroup:Thermochromic ..................................................... 103

WindowMaterial:GlazingGroup:Thermochromic Outputs ....................................... 108

WindowMaterial:Gas ............................................................................................. 108

WindowMaterial:GasMixture .................................................................................. 110

WindowMaterial:Gap ............................................................................................. 111

WindowGap:DeflectionState .................................................................................. 112

WindowGap:SupportPillar...................................................................................... 112

WindowMaterial:SimpleGlazingSystem ................................................................. 113

WindowMaterial:Shade .......................................................................................... 114

WindowMaterial:Blind ............................................................................................ 118

WindowMaterial:ComplexShade ............................................................................ 123

WindowMaterial:Screen ......................................................................................... 129

WindowMaterial:Shade:EquivalentLayer ............................................................... 134

WindowMaterial:Drape:EquivalentLayer ................................................................ 136

WindowMaterial:Blind:EquivalentLayer .................................................................. 138

WindowMaterial:Screen:EquivalentLayer .............................................................. 142

WindowMaterial:Glazing:EquivalentLayer .............................................................. 144

WindowMaterial:Gap:EquivalentLayer ................................................................... 147

Material:RoofVegetation ........................................................................................ 149

Ecoroof / RoofVegetation outputs .......................................................................... 152

MaterialProperty:GlazingSpectralData ................................................................... 153

Construction .......................................................................................................... 155

Site:GroundTemperature:FCfactorMethod ............................................................. 159

Constructions - Modeling Underground Walls and Ground Floors Defined with C and F Factors for Building Energy Code Compliance .................................. 159

Construction:CfactorUndergroundWall .................................................................. 159

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9/29/14 vi

Construction:FfactorGroundFloor .......................................................................... 160

Construction:InternalSource .................................................................................. 161

Composite Wall Constructions ............................................................................... 164

Construction:ComplexFenestrationState ............................................................... 164

WindowThermalModel:Params .............................................................................. 166

Matix:TwoDimension ............................................................................................. 168

Construction:WindowEquivalentLayer ................................................................... 168

Construction:WindowDataFile ............................................................................... 169

Construction Element Outputs ............................................................................... 170

Group Thermal Zone Description/Geometry ............................................................. 171

Zone ...................................................................................................................... 171

Zone Outputs ......................................................................................................... 173

Zone Thermal Output(s) ........................................................................................ 174

ZoneList ................................................................................................................ 177

ZoneList Outputs ................................................................................................... 178

ZoneGroup ............................................................................................................ 178

ZoneGroup Outputs ............................................................................................... 179

Surface(s) .............................................................................................................. 179

Interzone Surfaces ................................................................................................ 180

Surface View Factors ............................................................................................ 181

GlobalGeometryRules ........................................................................................... 181

Surfaces ................................................................................................................ 183

Walls ..................................................................................................................... 183

Wall:Exterior .......................................................................................................... 183

Wall:Adiabatic ........................................................................................................ 184

Wall:Underground ................................................................................................. 185

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Wall:Interzone ....................................................................................................... 186

Roofs/Ceilings ....................................................................................................... 187

Roof ...................................................................................................................... 187

Ceiling:Adiabatic .................................................................................................... 188

Ceiling:Interzone ................................................................................................... 189

Floors .................................................................................................................... 190

Floor:GroundContact ............................................................................................. 190

Floor:Adiabatic ...................................................................................................... 191

Floor:Interzone ...................................................................................................... 191

Windows/Doors ..................................................................................................... 192

Window ................................................................................................................. 193

Door ...................................................................................................................... 194

GlazedDoor ........................................................................................................... 195

Window:Interzone .................................................................................................. 197

Door:Interzone ....................................................................................................... 198

GlazedDoor:Interzone ........................................................................................... 199

Surface Vertices .................................................................................................... 202

Building Surfaces - Detailed .................................................................................. 203

Wall:Detailed ......................................................................................................... 203

RoofCeiling:Detailed .............................................................................................. 206

Floor:Detailed ........................................................................................................ 209

BuildingSurface:Detailed ....................................................................................... 213

FenestrationSurface:Detailed ................................................................................ 217

Window Modeling Options ..................................................................................... 220

InternalMass .......................................................................................................... 222

Surface Output Variables/Reports ......................................................................... 224

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9/29/14 viii

Window Output Variables ...................................................................................... 226

Surface Output Variables (all heat transfer surfaces) ............................................. 228

Surface Output Variables (exterior heat transfer surfaces) .................................... 232

Opaque Surface Output Variables ......................................................................... 234

Window Output Variables ...................................................................................... 237

Thermochomic Window Outputs ............................................................................ 247

Other Surface Outputs/Reports ............................................................................. 248

Shading Surfaces .................................................................................................. 248

Detached Shading Surfaces .................................................................................. 249

Shading:Site, Shading:Building ............................................................................. 249

Shading:Site:Detailed, Shading:Building:Detailed .................................................. 250

Attached Shading Surfaces ................................................................................... 252

Shading:Overhang ................................................................................................ 252

Shading:Overhang:Projection ................................................................................ 252

Shading:Fin ........................................................................................................... 253

Shading:Fin:Projection .......................................................................................... 254

Shading:Zone:Detailed .......................................................................................... 255

ShadingProperty:Reflectance ................................................................................ 258

WindowProperty:ShadingControl ........................................................................... 259

WindowProperty:FrameAndDivider ........................................................................ 268

WindowProperty:AirflowControl ............................................................................. 275

WindowProperty:StormWindow ............................................................................. 277

Importing Windows from WINDOW program ......................................................... 279

Zone Thermal Output(s) ........................................................................................ 281

Group Advanced Surface Concepts ......................................................................... 283

SurfaceProperty:HeatTransferAlgorithm ................................................................ 283

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SurfaceProperty:HeatTransferAlgorithm:MultipleSurface ....................................... 283

SurfaceProperty:HeatTransferAlgorithm:SurfaceList ............................................. 284

SurfaceProperty:HeatTransferAlgorithm:Construction ........................................... 285

SurfaceControl:MoveableInsulation ....................................................................... 286

SurfaceProperty:OtherSideCoefficients ................................................................. 287

SurfaceProperty:OtherSideCoefficients Outputs .................................................... 290

SurfaceProperty:OtherSideConditionsModel ......................................................... 290

SurfaceProperty:OtherSideConditionsModel Outputs ............................................ 292

SurfaceConvectionAlgorithm:Inside:AdaptiveModelSelections .............................. 292

SurfaceConvectionAlgorithm:Outside:AdaptiveModelSelections............................ 300

SurfaceConvectionAlgorithm:Inside:UserCurve ..................................................... 301

SurfaceConvectionAlgorithm:Outside:UserCurve .................................................. 302

SurfaceProperty:ConvectionCoefficients ............................................................... 303

SurfaceProperty:ConvectionCoefficients:MultipleSurface ...................................... 306

Convection Coefficient Application Hierarchy ........................................................ 309

Convection Coefficients Outputs............................................................................ 309

SurfaceProperties:VaporCoefficients ..................................................................... 313

SurfaceProperty:ExteriorNaturalVentedCavity ....................................................... 314

SurfaceProperty:ExteriorNaturalVentedCavity Outputs .......................................... 316

SurfaceProperty:SolarIncidentInside ..................................................................... 317

ComplexFenestrationProperty:SolarAbsorbedLayers ............................................ 318

GeometryTransform .............................................................................................. 319

Zone Property View Factors .................................................................................. 320

ZoneProperty:UserViewFactors:bySurfaceName .................................................. 321

Group Detailed Ground Heat Transfer ...................................................................... 322

Detailed Ground Heat Transfer .............................................................................. 322

TABLE OF CONTENTS

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GroundHeatTransfer:Control ................................................................................. 322

Group Room Air Models ........................................................................................... 323

Room Air Models ................................................................................................... 323

RoomAirModelType ............................................................................................... 324

RoomAir:TemperaturePattern:UserDefined ........................................................... 325

RoomAir:TemperaturePattern:ConstantGradient ................................................... 326

RoomAir:TemperaturePattern:TwoGradient .......................................................... 327

RoomAir:TemperaturePattern:NondimensionalHeight ........................................... 329

RoomAir:TemperaturePattern:SurfaceMapping ..................................................... 331

RoomAir:Node ....................................................................................................... 332

RoomAirSettings:OneNodeDisplacementVentilation .............................................. 333

RoomAirSettings:ThreeNodeDisplacementVentilation ........................................... 334

RoomAirSettings:CrossVentilation ......................................................................... 336

CrossVentilation Model Outputs ............................................................................ 337

RoomAirSettings:UnderFloorAirDistributionInterior ................................................ 338

RoomAirSettings:UnderFloorAirDistributionExterior ............................................... 341

Room Air Model Outputs ....................................................................................... 344

RoomAir:TemperaturePattern:TwoGradient Outputs ............................................. 344

Mundt Model / OneNodeDisplacementVentilation Outputs .................................... 344

ThreeNodeDisplacementVentilation Outputs ......................................................... 344

CrossVentilation Model Outputs ............................................................................ 345

UnderFloorAirDistributionInterior/Exterior Model Outputs ...................................... 346

Group Internal Gains (People, Lights, Other internal zone equipment) ..................... 347

People ................................................................................................................... 347

People Outputs ...................................................................................................... 354

Simplified ASHRAE 55-2004 Graph Related Outputs ............................................ 358

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Simplified ASHRAE 55 Warnings .......................................................................... 360

ComfortViewFactorAngles ..................................................................................... 361

Lights .................................................................................................................... 362

Lights Report Outputs ............................................................................................ 367

Meters for Lights Outputs ...................................................................................... 369

ElectricEquipment ................................................................................................. 369

GasEquipment ....................................................................................................... 371

HotWaterEquipment .............................................................................................. 374

SteamEquipment ................................................................................................... 376

OtherEquipment .................................................................................................... 378

Electric, Gas, Other, HotWater, Steam Equipment Outputs ................................... 380

ZoneContaminantSourceAndSink:CarbonDioxide ................................................. 383

ZoneContaminantSourceAndSink:CarbonDioxide Outputs .................................... 383

ZoneContaminantSourceAndSink:GenericContaminant:Constant ......................... 384

ZoneContaminantSourceAndSink:GenericContaminant:Constant Outputs ............ 385

SurfaceContaminantSourceAndSink:GenericContaminant:PressureDriven ........... 385

SurfaceContaminantSourceAndSink:GenericContaminant:PressureDriven Outputs .................................................................................................................. 386

ZoneContaminantSourceAndSink:GenericContaminant:CutoffModel .................... 386

ZoneContaminantSourceAndSink:GenericContaminant:CutoffModel Outputs .................................................................................................................. 387

ZoneContaminantSourceAndSink:GenericContaminant:DecaySource .................. 387

ZoneContaminantSourceAndSink:GenericContaminant:DecaySource Outputs .................................................................................................................. 388

SurfaceContaminantSourceAndSink:GenericContaminant:BoudaryLayerDiffusion ................................................................................................................... 388

SurfaceContaminantSourceAndSink:GenericContaminant:BoundaryLayerDiffusion Outputs ................................................................................................... 389

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SurfaceContaminantSourceAndSink:GenericContaminant:DepositionVelocitySink .................................................................................................................. 390

SurfaceContaminantSourceAndSink:GenericContaminant:DepositionVelocitySink Outputs .................................................................................................... 390

ZoneContaminantSourceAndSink:GenericContaminant:DepositionRateSink .......................................................................................................................... 391

ZoneContaminantSourceAndSink:GenericContaminant:DepositionRateSink Outputs ............................................................................................................. 391

ZoneBaseboard:OutdoorTemperatureControlled ................................................... 392

ZoneBaseboard:OutdoorTemperatureControlled Output ....................................... 393

Meters for Equipment Outputs ............................................................................... 395

Group Daylighting..................................................................................................... 395

Daylighting:Controls .............................................................................................. 396

Guidelines for Daylighting Modeling (Detailed Method) ......................................... 401

DElight Daylighting Method ................................................................................... 406

Daylighting:DELight:Controls ................................................................................. 407

Daylighting:DELight:ReferencePoint ...................................................................... 409

Daylighting:DELight:ComplexFenestration ............................................................ 411

DElight Output ....................................................................................................... 412

Daylighting Output ................................................................................................. 413

Output:IlluminanceMap .......................................................................................... 415

OutputControl:IlluminanceMap:Style ..................................................................... 416

Daylighting Devices ............................................................................................... 416

DaylightingDevice:Tubular ..................................................................................... 416

Tubular Daylighting Device Output ........................................................................ 419

DaylightingDevice:Shelf ......................................................................................... 421

Shelf Daylighting Device Output ............................................................................ 424

DaylightingDevice:LightWell .................................................................................. 425

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Daylighting Modeling Options ................................................................................ 427

Group Exterior Energy Use Equipment ..................................................................... 428

Exterior:Lights ....................................................................................................... 428

Exterior Lights Outputs .......................................................................................... 429

Exterior:FuelEquipment ......................................................................................... 429

Exterior:WaterEquipment....................................................................................... 430

Exterior Fuel Equipment, Exterior Water Equipment Outputs ................................ 430

Group Airflow ........................................................................................................... 431

ZoneInfiltration:DesignFlowRate ............................................................................ 431

ZoneInfiltration:EffectiveLeakageArea ................................................................... 434

ZoneInfiltration:FlowCoefficient.............................................................................. 436

ZoneInfiltration Outputs ......................................................................................... 438

ZoneVentilation:DesignFlowRate ........................................................................... 439

ZoneVentilation:WindandStackOpenArea .............................................................. 445

ZoneVentilation Outputs ........................................................................................ 450

ZoneAirBalance:OutdoorAir ................................................................................... 451

ZoneAirBalance:OutdoorAir Outputs ..................................................................... 453

ZoneMixing ............................................................................................................ 454

Zone Mixing Outputs ............................................................................................. 457

ZoneCrossMixing .................................................................................................. 458

Zone Cross Mixing Outputs ................................................................................... 462

ZoneRefrigerationDoorMixing ................................................................................ 463

Refrigeration Door Mixing Outputs ......................................................................... 464

ZoneEarthtube (Earth Tube) .................................................................................. 465

ZoneEarthTube Outputs ........................................................................................ 469

ZoneCoolTower:Shower ........................................................................................ 470

TABLE OF CONTENTS

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ZoneCoolTower:Shower Outputs ........................................................................... 472

ZoneThermalChimney (Thermal Chimney) ............................................................ 474

ZoneThermalChimney Outputs .............................................................................. 476

ZoneAirMassFlowConservation ............................................................................. 477

ZoneAirMassFlowConservation Outputs ................................................................ 478

Group Design Objects .............................................................................................. 480

Input for Design Calculations and Component Autosizing...................................... 480

DesignSpecification:OutdoorAir ............................................................................. 501

DesignSpecification:ZoneAirDistribution ................................................................ 502

Sizing:Parameters ................................................................................................. 504

Sizing Parameters Outputs .................................................................................... 504

OutputControl:Sizing:Style ..................................................................................... 505

Sizing:Zone ........................................................................................................... 505

Zone Sizing Outputs .............................................................................................. 509

Sizing:System ........................................................................................................ 510

System Sizing Outputs .......................................................................................... 515

Sizing:Plant ........................................................................................................... 516

Plant Sizing Outputs .............................................................................................. 516

HVAC: Primary and Secondary Systems ..................................................................... 516

Group Node-Branch Management ............................................................................ 518

NodeList ................................................................................................................ 518

Node List Outputs .................................................................................................. 519

BranchList ............................................................................................................. 522

Branch List Output ................................................................................................. 523

Branch ................................................................................................................... 523

Branch Output ....................................................................................................... 525

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ConnectorList ........................................................................................................ 526

Connector List Outputs .......................................................................................... 526

Pipe:Adiabatic ....................................................................................................... 526

Pipe Outputs.......................................................................................................... 527

Pipe:Adiabatic:Steam ............................................................................................ 527

Steam Pipe Outputs .............................................................................................. 527

Pipe:Indoor ............................................................................................................ 527

Pipe:Indoor Outputs ............................................................................................... 528

Pipe:Outdoor ......................................................................................................... 529

Pipe:Outdoor Outputs ............................................................................................ 530

Pipe:Underground ................................................................................................. 530

Pipe:Underground Outputs .................................................................................... 532

PipingSystem:Underground Class Objects ............................................................ 532

PipingSystem:Underground:Domain ...................................................................... 533

PipingSystem:Underground:PipeCircuit ................................................................. 535

PipingSystem:Underground:PipeSegment ............................................................. 536

PipingSystem:Underground Outputs ..................................................................... 538

Duct ....................................................................................................................... 539

Duct Outputs ......................................................................................................... 539

Group Plant-Condenser Loops ................................................................................. 539

PlantLoop .............................................................................................................. 539

Plant Loop Outputs ................................................................................................ 543

CondenserLoop ..................................................................................................... 548

Condenser Loop Outputs ...................................................................................... 551

Group Plant-Condenser Control ............................................................................... 553

Operation Schemes (Plant and Condenser) .......................................................... 553

TABLE OF CONTENTS

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PlantEquipmentOperationSchemes ....................................................................... 554

CondenserEquipmentOperationSchemes .............................................................. 555

PlantEquipmentOperation:Uncontrolled ................................................................. 556

PlantEquipmentOperation:CoolingLoad ................................................................. 556

PlantEquipmentOperation:HeatingLoad ................................................................. 556

PlantEquipmentOperation:OutdoorDryBulb ........................................................... 557

PlantEquipmentOperation:OutdoorWetBulb .......................................................... 557

PlantEquipmentOperation:OutdoorRelativeHumidity ............................................. 557

PlantEquipmentOperation:OutdoorDewpoint ......................................................... 557

PlantEquipmentOperation:OutdoorDryBulbDifference ........................................... 558

PlantEquipmentOperation:OutdoorWetBulbDifference .......................................... 558

PlantEquipmentOperation:OutdoorDewpointDifference ......................................... 558

PlantEquipmentOperation:ComponentSetpoint ..................................................... 558

PlantEquipmentList................................................................................................ 560

CondenserEquipmentList ...................................................................................... 560

Group Plant Equipment ............................................................................................ 560

Equipment Types .................................................................................................. 560

Generic Chiller Outputs ......................................................................................... 561

Chiller:Absorption .................................................................................................. 565

Absorption Chiller Outputs ..................................................................................... 568

Chiller:Absorption:Indirect ...................................................................................... 569

Indirect Absorption Chiller Outputs ........................................................................ 572

Chiller:ConstantCOP ............................................................................................. 573

Constant COP Chiller Outputs ............................................................................... 575

Chiller:Electric ....................................................................................................... 576

Electric Chiller Outputs .......................................................................................... 584

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Chiller:Electric:EIR................................................................................................. 584

Electric EIR Chiller Outputs ................................................................................... 591

Chiller:Electric:ReformulatedEIR ........................................................................... 593

Electric Reformulated EIR Chiller Outputs ............................................................. 598

Chiller:EngineDriven .............................................................................................. 598

Engine Driven Chiller Outputs ............................................................................... 605

Chiller:CombustionTurbine .................................................................................... 607

Combustion Turbine Chiller Outputs ...................................................................... 615

ChillerHeater:Absorption:DirectFired ..................................................................... 616

Direct Fired Absorption Chiller Outputs .................................................................. 621

ChillerHeater:Absorption:DoubleEffect .................................................................. 624

Exhaust Fired Absorption Chiller Outputs .............................................................. 628

Boiler:HotWater ..................................................................................................... 632

Boiler:HotWater Outputs ........................................................................................ 635

Boiler:Steam .......................................................................................................... 637

Steam Boiler Outputs ............................................................................................ 638

Water to Water Heat Pumps .................................................................................. 639

HeatPump:WaterToWater:EquationFit:Cooling ...................................................... 640

Water to Water Heat Pump Equation Fit Outputs .................................................. 642

HeatPump:WaterToWater:EquationFit:Heating ..................................................... 643

HeatPump:WaterToWater:ParameterEstimation:Cooling....................................... 644

HeatPump:WaterToWater:ParameterEstimation:Heating ...................................... 646

Water to Water Heat Pump Parameter Estimation Outputs ................................... 649

DistrictCooling ....................................................................................................... 651

DistrictCooling Outputs .......................................................................................... 651

DistrictHeating ....................................................................................................... 652

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DistrictHeating Outputs .......................................................................................... 652

PlantComponent:TemperatureSource ................................................................... 653

PlantComponent:TemperatureSource Outputs ...................................................... 654

CentralHeatPumpSystem ...................................................................................... 654

Central Heat Pump System Outputs ...................................................................... 659

ChillerHeaterPerformance:EIectric:EIR .................................................................. 660

ChillerHeaterPerformance:Electric:EIR Outputs .................................................... 665

Thermal Storage Objects ....................................................................................... 668

ThermalStorage:Ice:Simple ................................................................................... 669

Simple Ice Storage Outputs ................................................................................... 669

ThermalStorage:Ice:Detailed ................................................................................. 670

Detailed Ice Storage Outputs ................................................................................. 672

ThermalStorage:ChilledWater:Mixed ..................................................................... 674

Chilled Water Mixed Thermal Storage Outputs ...................................................... 677

ThermalStorage:ChilledWater:Stratified ................................................................. 678

Chilled Water Stratified Thermal Storage Outputs ................................................. 683

Group Water Heaters ............................................................................................... 685

Standard Ratings ................................................................................................... 686

WaterHeater:Mixed................................................................................................ 686

Mixed Water Heater Outputs ................................................................................. 693

WaterHeater:Stratified ........................................................................................... 696

Stratified Water Heater Outputs ............................................................................. 703

WaterHeater:Sizing ............................................................................................... 705

WaterHeater:HeatPump ........................................................................................ 707

Heat Pump Water Heater Outputs ........................................................................ 717

Group Condenser Equipment ................................................................................... 717

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Equipment Types .................................................................................................. 717

CoolingTower:SingleSpeed ................................................................................... 717

Single Speed Cooling Tower Outputs .................................................................... 725

CoolingTower:TwoSpeed ...................................................................................... 727

Two Speed Cooling Tower Outputs ....................................................................... 735

CoolingTower:VariableSpeed:Merkel .................................................................... 737

CoolingTower:VariableSpeed:Merkel Outputs ....................................................... 744

CoolingTower:VariableSpeed ................................................................................ 746

Variable Speed Cooling Tower Outputs ................................................................. 752

CoolingTowerPerformance:CoolTools ................................................................... 754

CoolingTowerPerformance:CoolTools Outputs ...................................................... 757

CoolingTowerPerformance:YorkCalc ..................................................................... 757

CoolingTowerPerformance:YorkCalc Outputs ....................................................... 760

EvaporativeFluidCooler:SingleSpeed .................................................................... 760

Single Speed Evaporative Fluid Cooler Outputs .................................................... 765

EvaporativeFluidCooler:TwoSpeed ....................................................................... 767

Two Speed Evaporative Fluid Cooler Outputs ....................................................... 773

FluidCooler:SingleSpeed ....................................................................................... 774

Single Speed Fluid Cooler Outputs ........................................................................ 776

FluidCooler:TwoSpeed .......................................................................................... 777

Two Speed Fluid Cooler Outputs ........................................................................... 780

GroundHeatExchanger:Vertical ............................................................................. 780

Vertical Ground Heat Exchanger Outputs .............................................................. 784

GroundHeatExchanger:Pond ................................................................................. 784

Pond Heat Exchanger Outputs .............................................................................. 786

GroundHeatExchanger:Surface ............................................................................. 787

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Surface Ground Heat Exchanger Outputs ............................................................. 788

GroundHeatExchanger:HorizontalTrench .............................................................. 789

Horizontal Trench Ground Heat Exchanger Outputs .............................................. 791

HeatExchanger:FluidToFluid ................................................................................. 792

Fluid to Fluid Heat Exchanger Outputs .................................................................. 798

Group Plant-Condenser Flow Control ....................................................................... 799

Connector:Splitter, Connector:Mixer ...................................................................... 799

Connector:Splitter .................................................................................................. 799

Connector:Mixer .................................................................................................... 799

TemperingValve .................................................................................................... 800

Tempering Valve Outputs ...................................................................................... 802

Group Air Distribution ............................................................................................... 802

AirLoopHVAC ........................................................................................................ 802

AirLoopHVAC Outputs ........................................................................................... 803

Outdoor Air Ventilation Outputs ............................................................................. 804

Systems Level Reporting ....................................................................................... 809

System Loads Outputs .......................................................................................... 809

System Energy Use Outputs ................................................................................. 810

System Component Loads Outputs ....................................................................... 810

System Component Energy Use Outputs .............................................................. 812

Overall Air Loop Syntax ......................................................................................... 813

AirLoopHVAC:ControllerList .................................................................................. 813

AvailabilityManagerAssignmentList ....................................................................... 814

AirLoopHVAC:OutdoorAirSystem .......................................................................... 815

Outdoor Air System Outputs .................................................................................. 816

AirLoopHVAC:OutdoorAirSystem:EquipmentList ................................................... 816

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OutdoorAir:Node ................................................................................................... 817

Outdoor Air Node outputs: ..................................................................................... 817

OutdoorAir:NodeList .............................................................................................. 818

OutdoorAir:Mixer ................................................................................................... 818

Group Airflow Network ............................................................................................. 819

Overview ............................................................................................................... 819

Summary of Objects .............................................................................................. 819

Airflow Network Example Files (included in the installation) ................................... 823

What the Airflow Network Model Can and Cannot Do ............................................ 824

AirflowNetwork:SimulationControl .......................................................................... 825

AirflowNetwork:Multizone:Zone ............................................................................. 829

AirflowNetwork:Multizone:Surface ......................................................................... 833

AirflowNetwork:MultiZone:ReferenceCrackConditions ........................................... 839

AirflowNetwork:MultiZone:Surface:Crack ............................................................... 839

AirflowNetwork:MultiZone:Surface:EffectiveLeakageArea ..................................... 840

AirflowNetwork:MultiZone:Component:DetailedOpening ....................................... 841

AirflowNetwork:MultiZone:Component:HorizontalOpening..................................... 845

AirflowNetwork:MultiZone:Component:SimpleOpening .......................................... 846

AirflowNetwork:MultiZone:Component:ZoneExhaustFan ....................................... 847

AirflowNetwork:MultiZone:ExternalNode ................................................................ 848

AirflowNetwork:MultiZone:WindPressureCoefficientArray ...................................... 849

AirflowNetwork:MultiZone:WindPressureCoefficientValues ................................... 850

AirflowNetwork:Distribution:Node .......................................................................... 851

AirflowNetwork:Distribution:Component:Leak ........................................................ 853

AirflowNetwork:Distribution:Component:LeakageRatio .......................................... 854

AirflowNetwork:Distribution:Component:Duct ........................................................ 856

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AirflowNetwork:Distribution:Component:Fan.......................................................... 858

AirflowNetwork:Distribution:Component:Coil.......................................................... 858

AirflowNetwork:Distribution:Component:HeatExchanger ....................................... 859

AirflowNetwork:Distribution:Component:TerminalUnit ............................................ 861

AirflowNetwork:Distribution:Component:ConstantPressureDrop ............................ 862

AirflowNetwork:Distribution:Linkage ...................................................................... 863

Airflow Network Outputs ........................................................................................ 863

Group Zone Equipment ............................................................................................ 877

ZoneHVAC:AirDistributionUnit ............................................................................... 881

ZoneHVAC:EquipmentConnections ....................................................................... 882

ZoneHVAC:EquipmentList ..................................................................................... 883

Group Air Distribution Equipment ............................................................................. 885

AirTerminal:SingleDuct:Uncontrolled ..................................................................... 885

Single Duct Uncontrolled AirTerminal Outputs ....................................................... 886

AirTerminal:SingleDuct:ConstantVolume:Reheat .................................................. 886

Single Duct Constant Volume Reheat AirTerminal Outputs ................................... 888

AirTerminal:SingleDuct:VAV:Reheat ..................................................................... 888

Single Duct VAV Reheat AirTerminal Outputs ....................................................... 893

AirTerminal:SingleDuct:VAV:Reheat:VariableSpeedFan ....................................... 894

Single Duct VAV Reheat Variable Speed Fan AirTerminal Outputs ....................... 896

AirTerminal:SingleDuct:VAV:HeatAndCool:Reheat................................................ 897

Single Duct VAV Heat and Cool Reheat AirTerminal Outputs ................................ 899

AirTerminal:SingleDuct:VAV:NoReheat ................................................................. 899

Single Duct VAV NoReheat AirTerminal Outputs ................................................... 901

AirTerminal:SingleDuct:VAV:HeatAndCool:NoReheat ........................................... 901

Single Duct VAV Heat and Cool NoReheat AirTerminal Outputs ........................... 903

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AirTerminal:SingleDuct:SeriesPIU:Reheat ............................................................. 903

Single Duct Series PIU Reheat AirTerminal Outputs ............................................. 905

AirTerminal:SingleDuct:ParallelPIU:Reheat ........................................................... 906

Single Duct Parallel PIU Reheat AirTerminal Outputs ............................................ 909

AirTerminal:SingleDuct:ConstantVolume:FourPipeInduction ................................. 910

Single Duct Constant Volume Four Pipe Induction AirTerminal Outputs ................ 913

AirTerminal:SingleDuct:ConstantVolume:CooledBeam ......................................... 913

Singled Duct Constant Volume Cooled Beam AirTerminal Outputs ....................... 916

AirTerminal:SingleDuct:InletSideMixer ................................................................... 916

AirTerminal:SingleDuct:SupplySideMixer .............................................................. 917

AirTerminal:DualDuct:ConstantVolume ................................................................. 919

Dual Duct Constant Volume AirTerminal Outputs .................................................. 919

AirTerminal:DualDuct:VAV .................................................................................... 920

Dual Duct VAV AirTerminal Outputs ...................................................................... 921

AirTerminal:DualDuct:VAV:OutdoorAir .................................................................. 922

Dual Duct VAV Outdoor Air AirTerminal Outputs ................................................... 923

Group Zone Forced Air Units .................................................................................... 924

ZoneHVAC:IdealLoadsAirSystem .......................................................................... 924

ZoneHVAC:IdealLoadsAirSystem Outputs ............................................................ 928

ZoneHVAC:FourPipeFanCoil ................................................................................. 932

Fan Coil Outputs ................................................................................................... 938

ZoneHVAC:UnitVentilator ...................................................................................... 940

Unit Ventilator Outputs .......................................................................................... 947

ZoneHVAC:UnitHeater .......................................................................................... 949

Unit Heater Outputs ............................................................................................... 952

ZoneHVAC:EvaporativeCoolerUnit ........................................................................ 953

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ZoneHVAC:EvaporativeCoolerUnit Outputs .......................................................... 956

ZoneHVAC:OutdoorAirUnit .................................................................................... 958

Outdoor Air Unit Outputs ....................................................................................... 962

ZoneHVAC:OutdoorAirUnit:EquipmentList ............................................................ 964

ZoneHVAC:WindowAirConditioner ........................................................................ 964

Window Air Conditioner Outputs ............................................................................ 968

ZoneHVAC:PackagedTerminalAirConditioner ....................................................... 969

Packaged Terminal Air Conditioner (PTAC) Outputs ............................................. 975

ZoneHVAC:PackagedTerminalHeatPump ............................................................. 978

Packaged Terminal Heat Pump (PTHP) Outputs ................................................... 985

ZoneHVAC:RefrigerationChillerSet ........................................................................ 988

ZoneHVAC:WaterToAirHeatPump ......................................................................... 989

Water to Air Heat Pump (ZoneHVAC) Outputs ...................................................... 997

ZoneHVAC:Dehumidifier:DX ............................................................................... 1000

DX Dehumidifier (ZoneHVAC) Outputs ................................................................ 1003

ZoneHVAC:EnergyRecoveryVentilator ................................................................ 1005

Energy Recovery Ventilator (ERV) (ZoneHVAC) Outputs .................................... 1009

ZoneHVAC:TerminalUnit:VariableRefrigerantFlow .............................................. 1012

Variable Refrigerant Flow (VRF) Terminal Unit (ZoneHVAC) Outputs ................. 1015

DesignSpecification:ZoneHVAC:Sizing................................................................ 1018

Group Unitary Equipment ....................................................................................... 1025

Furnace and Unitary Systems ............................................................................. 1025

AirLoopHVAC:UnitarySystem .............................................................................. 1026

Unitary System (AirLoopHVAC) Outputs ............................................................. 1035

UnitarySystemPerformance:HeatPump:Multispeed ............................................. 1038

AirLoopHVAC:Unitary:Furnace:HeatCool ............................................................ 1039

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Unitary System/Furnace Heat and Cool (AirLoopHVAC) Outputs ........................ 1044

AirLoopHVAC:UnitaryHeatCool ........................................................................... 1045

Unitary System Heat and Cool (AirLoopHVAC) Outputs ...................................... 1049

AirLoopHVAC:UnitaryHeatPump:AirToAir ........................................................... 1050

Unitary Air to Air Heat Pump (AirLoopHVAC) Outputs ......................................... 1055

AirLoopHVAC:UnitaryHeatPump:AirToAir:MultiSpeed ......................................... 1056

Unitary Air to Air MultiSpeed Heat Pump (AirLoopHVAC) Outputs ...................... 1065

AirLoopHVAC:Unitary:Furnace:HeatOnly ............................................................ 1068

Unitary/Furnace Heat Only (AirLoopHVAC) Outputs ............................................ 1072

AirLoopHVAC:UnitaryHeatOnly ........................................................................... 1072

Unitary Heat Only (AirLoopHVAC) Outputs ......................................................... 1076

AirLoopHVAC:UnitaryHeatPump:WaterToAir ...................................................... 1076

Unitary Water to Air Heat Pump (AirLoopHVAC) Outputs .................................... 1084

AirLoopHVAC:UnitaryHeatCool:VAVChangeoverBypass .................................... 1085

Unitary VAV Changeover Bypass Heat and Cool (AirLoopHVAC) Outputs .......... 1093

Group Variable Refrigerant Flow Equipment .......................................................... 1096

AirConditioner:VariableRefrigerantFlow ............................................................... 1096

Variable Refrigerant Flow (VRF) Air Conditioner Outputs .................................... 1114

ZoneTerminalUnitList .......................................................................................... 1119

Group Radiative / Convective Units ........................................................................ 1120

ZoneHVAC:Baseboard:RadiantConvective:Water ............................................... 1121

Baseboard (Water) Radiant Convective (ZoneHVAC) Outputs ............................ 1123

ZoneHVAC:Baseboard:RadiantConvective:Steam .............................................. 1125

Baseboard (Steam) Radiant Convective (ZoneHVAC) Outputs ........................... 1127

ZoneHVAC:Baseboard:RadiantConvective:Electric ............................................. 1128

Baseboard (Electric) Radiant Convective (ZoneHVAC) Outputs .......................... 1131

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ZoneHVAC:Baseboard:Convective:Water ........................................................... 1132

Baseboard (Water) Convective (ZoneHVAC) Outputs ......................................... 1134

ZoneHVAC:Baseboard:Convective:Electric ......................................................... 1134

Baseboard (Electric) Convective (ZoneHVAC) Outputs ....................................... 1136

ZoneHVAC:LowTemperatureRadiant:VariableFlow ............................................. 1136

Low Temperature Radiant Variable Flow (ZoneHVAC) Outputs .......................... 1142

ZoneHVAC:LowTemperatureRadiant:ConstantFlow ............................................ 1143

Low Temperature Radiant Constant Flow (ZoneHVAC) Outputs ......................... 1148

ZoneHVAC:LowTemperatureRadiant:Electric ...................................................... 1150

Low Temperature Radiant Electric (ZoneHVAC) Outputs .................................... 1153

ZoneHVAC:LowTemperatureRadiant:SurfaceGroup ........................................... 1153

ZoneHVAC:HighTemperatureRadiant ................................................................. 1154

High Temperature Radiant (ZoneHVAC) Outputs ................................................ 1157

ZoneHVAC:VentilatedSlab .................................................................................. 1158

Ventilated Slab (ZoneHVAC) Outputs .................................................................. 1165

ZoneHVAC:VentilatedSlab:SlabGroup................................................................. 1168

Group Refrigeration ................................................................................................ 1169

Refrigeration:CompressorRack............................................................................ 1170

Refrigeration Compressor Rack Outputs ............................................................. 1176

Refrigeration:Case............................................................................................... 1180

Refrigeration:Case Outputs ................................................................................. 1187

Refrigeration:CaseAndWalkInList ........................................................................ 1191

Refrigeration:WalkIn ............................................................................................ 1191

Refrigeration Case and WalkIn Outputs ............................................................... 1196

Refrigeration:System ........................................................................................... 1198

Refrigeration System Outputs .............................................................................. 1202

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Refrigeration:TranscriticalSystem ........................................................................ 1211

Refrigeration Transcritical System Outputs .......................................................... 1214

Refrigeration:Compressor.................................................................................... 1217

Refrigeration Compressor Outputs ...................................................................... 1219

Refrigeration:CompressorList .............................................................................. 1220

Refrigeration:Subcooler ....................................................................................... 1220

Refrigeration Subcooler Outputs.......................................................................... 1221

Refrigeration:Condenser:AirCooled ..................................................................... 1222

Refrigeration Condenser (AirCooled) Outputs ..................................................... 1223

Refrigeration:Condenser:EvaporativeCooled ....................................................... 1226

Refrigeration Condenser (EvaporativeCooled) Outputs ....................................... 1230

Refrigeration:Condenser:WaterCooled ................................................................ 1233

Refrigeration Condenser (WaterCooled) Outputs ................................................ 1235

Refrigeration:Condenser:Cascade ....................................................................... 1237

Refrigeration Condenser (Cascade) Outputs ....................................................... 1238

Refrigeration:GasCooler:AirCooled ..................................................................... 1239

Refrigeration GasCooler (AirCooled) Outputs ...................................................... 1241

Refrigeration:TransferLoadList ............................................................................ 1242

Refrigeration:SecondarySystem .......................................................................... 1242

Refrigeration Secondary System Outputs ............................................................ 1247

Additional Refrigeration Outputs Available for Each Zone.................................... 1249

Additional Refrigeration Outputs for Each Zone ................................................... 1249

Refrigeration:AirChiller ........................................................................................ 1252

Refrigeration Air Chiller Outputs .......................................................................... 1257

Group Zone Controls Thermostats and Humidistats ............................................ 1260

ZoneControl:Thermostat ...................................................................................... 1261

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ZoneControl Thermostat Outputs ........................................................................ 1263

Zone Thermostat Setpoints ................................................................................. 1266

ThermostatSetpoint:SingleHeating ...................................................................... 1266

ThermostatSetpoint:SingleCooling ...................................................................... 1266

ThermostatSetpoint:SingleHeatingOrCooling ...................................................... 1266

ThermostatSetpoint:DualSetpoint ........................................................................ 1267

ZoneControl:Thermostat:OperativeTemperature ................................................. 1267

Zone Control Themostatic Operative Temperature Outputs ................................. 1269

ZoneControl:Thermostat:TemperatureAndHumidity............................................. 1269

ZoneControl:Thermostat:StagedDualSetpoint ..................................................... 1271

ZoneControl:Humidistat ....................................................................................... 1274

ZoneControl Humidistat Outputs .......................................................................... 1276

ZoneControl:Thermostat:ThermalComfort ........................................................... 1277

ZoneControl Thermostat ThermalComfort Outputs .............................................. 1279

Thermal Comfort Setpoints .................................................................................. 1280

ThermostatSetpoint:ThermalComfort:Fanger:SingleHeating ................................ 1281

ThermostatSetpoint:ThermalComfort:Fanger:SingleCooling ................................ 1281

ThermostatSetpoint:ThermalComfort:Fanger:SingleHeatingOrCooling ................ 1281

ThermostatSetpoint:ThermalComfort:Fanger:DualSetpoint ................................. 1281

ZoneControl:ContaminantController .................................................................... 1282

ZoneControl Contaminant Controller Outputs ...................................................... 1284

Group -- Air Path ....................................................................................................... 1284

AirLoopHVAC:SupplyPath, AirLoopHVAC:ReturnPath ........................................ 1284

AirLoopHVAC:SupplyPath ................................................................................... 1285

AirLoopHVAC:ReturnPath ................................................................................... 1285

AirLoopHVAC:ReturnPlenum .............................................................................. 1286

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AirLoopHVAC:SupplyPlenum .............................................................................. 1288

AirLoopHVAC:ZoneSplitter .................................................................................. 1289

AirLoopHVAC:ZoneMixer .................................................................................... 1290

Group -- Non-Zone Equipment .................................................................................. 1290

LoadProfile:Plant ................................................................................................. 1291

LoadProfile Plant Outputs .................................................................................... 1291

Group Solar Collectors ........................................................................................... 1292

SolarCollector:FlatPlate:Water............................................................................. 1292

Solar Collector FlatPlate Water Output ................................................................ 1293

SolarCollectorPerformance:FlatPlate ................................................................... 1294

SolarCollectorPerformance:FlatPlate Output ....................................................... 1295

SolarCollector:IntegralCollectorStorage ............................................................... 1295

SolarCollectorPerformance:IntegralCollectorStorage ........................................... 1297

Solar Collector Integral Collector Storage Outputs .............................................. 1299

SolarCollector:FlatPlate:PhotovoltaicThermal ...................................................... 1300

Solar Collector FlatPlate PhotovoltaicThermal Outputs ....................................... 1301

SolarCollectorPerformance:PhotovoltaicThermal:Simple ..................................... 1302

Solar Collector Heating System Plant Connections ............................................. 1303

Solar Heating System Control .........................................................................