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Zone HVAC Radiative/Convective Units

17 object types from idfpy.models.zone_radiative · EnergyPlus 26.2

Object Summary
ZoneHVAC:Baseboard:Convective:Electric Electric baseboard heater, convection-only.
ZoneHVAC:Baseboard:Convective:Water Hot water baseboard heater, convection-only.
ZoneHVAC:Baseboard:RadiantConvective:Electric The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list
ZoneHVAC:Baseboard:RadiantConvective:Steam The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list.
ZoneHVAC:Baseboard:RadiantConvective:Steam:Design
ZoneHVAC:Baseboard:RadiantConvective:Water The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list
ZoneHVAC:Baseboard:RadiantConvective:Water:Design
ZoneHVAC:CoolingPanel:RadiantConvective:Water The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list
ZoneHVAC:HighTemperatureRadiant The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list
ZoneHVAC:LowTemperatureRadiant:ConstantFlow Low temperature hydronic radiant heating and/or cooling system embedded in a building surface (wall, ceiling, …
ZoneHVAC:LowTemperatureRadiant:ConstantFlow:Design
ZoneHVAC:LowTemperatureRadiant:Electric Electric resistance low temperature radiant system
ZoneHVAC:LowTemperatureRadiant:SurfaceGroup This is used to allow the coordinate control of several radiant system surfaces.
ZoneHVAC:LowTemperatureRadiant:VariableFlow Low temperature hydronic radiant heating and/or cooling system embedded in a building surface (wall, ceiling, …
ZoneHVAC:LowTemperatureRadiant:VariableFlow:Design
ZoneHVAC:VentilatedSlab Ventilated slab system where outdoor air flows through hollow cores in a building surface (wall, ceiling, or …
ZoneHVAC:VentilatedSlab:SlabGroup This is used to allow the coordinate control of several ventilated slab system surfaces.

ZoneHVAC:Baseboard:Convective:Electric

from idfpy.models import ZoneHVACBaseboardConvectiveElectric

Electric baseboard heater, convection-only. Natural convection electric heating unit.

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the heating design capacity. HeatingDesignCapacity = > selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea = > selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity = > is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity.
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
efficiency
Efficiency
number 1.0 Range: ≥ 0, ≤ 1
Referenced by 2 object types

SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:Baseboard:Convective:Water

from idfpy.models import ZoneHVACBaseboardConvectiveWater

Hot water baseboard heater, convection-only. Natural convection hydronic heating unit.

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
inlet_node_name
Inlet Node Name required
string
outlet_node_name
Outlet Node Name required
string
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the heating design capacity. HeatingDesignCapacity = > selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea = > selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity = > is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity.
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
u_factor_times_area_value
U-Factor Times Area Value required
number or Autosize
W/K
maximum_water_flow_rate
Maximum Water Flow Rate required
number or Autosize
m3/s
convergence_tolerance
Convergence Tolerance
number 0.001 Range: > 0
Referenced by 4 object types

AirLoopHVAC:DedicatedOutdoorAirSystem, Branch, SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:Baseboard:RadiantConvective:Electric

from idfpy.models import ZoneHVACBaseboardRadiantConvectiveElectric extensible

The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the heating design capacity. HeatingDesignCapacity = > selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea = > selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity = > is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity.
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
efficiency
Efficiency
number 1.0 Range: > 0, ≤ 1
fraction_radiant
Fraction Radiant required
number Range: ≥ 0, ≤ 1
fraction_of_radiant_energy_incident_on_people
Fraction of Radiant Energy Incident on People
number Range: ≥ 0, ≤ 1
surface_fractions list Each item: surface_name, fraction_of_radiant_energy_to_surface
Referenced by 2 object types

SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:Baseboard:RadiantConvective:Steam

from idfpy.models import ZoneHVACBaseboardRadiantConvectiveSteam extensible

The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list.

Field Type Default Details
name
Name required
string
design_object
Design Object required
reference Names a ZoneHVAC:Baseboard:RadiantConvective:Water:Design, ZoneHVAC:LowTemperatureRadiant:ConstantFlow:Design, ZoneHVAC:LowTemperatureRadiant:VariableFlow:Design
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
inlet_node_name
Inlet Node Name required
string
outlet_node_name
Outlet Node Name required
string
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity.
degree_of_subcooling
Degree of SubCooling
number
deltaC
5.0 Range: ≥ 1
maximum_steam_flow_rate
Maximum Steam Flow Rate required
number or Autosize
m3/s
surface_fractions list Each item: surface_name, fraction_of_radiant_energy_to_surface
Referenced by 4 object types

AirLoopHVAC:DedicatedOutdoorAirSystem, Branch, SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:Baseboard:RadiantConvective:Steam:Design

from idfpy.models import ZoneHVACBaseboardRadiantConvectiveSteamDesign

Field Type Default Details
name
Name required
string
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the heating design capacity. HeatingDesignCapacity is selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea is selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
convergence_tolerance
Convergence Tolerance
number 0.001 Range: > 0
fraction_radiant
Fraction Radiant required
number Range: ≥ 0, ≤ 1
fraction_of_radiant_energy_incident_on_people
Fraction of Radiant Energy Incident on People
number Range: ≥ 0, ≤ 1
Referenced by 4 object types

AirLoopHVAC:DedicatedOutdoorAirSystem, Branch, SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:Baseboard:RadiantConvective:Water

from idfpy.models import ZoneHVACBaseboardRadiantConvectiveWater extensible

The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list

Field Type Default Details
name
Name required
string
design_object
Design Object required
reference Names a ZoneHVAC:Baseboard:RadiantConvective:Water:Design, ZoneHVAC:LowTemperatureRadiant:ConstantFlow:Design, ZoneHVAC:LowTemperatureRadiant:VariableFlow:Design
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
inlet_node_name
Inlet Node Name required
string
outlet_node_name
Outlet Node Name required
string
rated_average_water_temperature
Rated Average Water Temperature
number
C
87.78 Rated average water temperature is the average of the inlet and outlet water temperatures at rated conditions.
Range: ≥ 20, ≤ 150
rated_water_mass_flow_rate
Rated Water Mass Flow Rate
number
kg/s
0.063 Standard is I=B=R Rating document where all baseboards are rated at either 0.063 kg/s (1 gpm) or 0.252 kg/s (4 gpm). It is recommended that users find data for the baseboard heater that corresponds to performance at 0.063 kg/s unless the flow rate is expected to be above 0.252 kg/s. If the flow rate is expected to be above 0.252 kg/s, this field should be 0.252 kg/s.
Range: > 0, ≤ 10
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity. This input field is rated heating capacity. Users must multiply the actual finned length published in the literature to determine the rated capacity. Rated Capacity is for an inlet air dry-bulb temperature of 18.0C, the Rated Water Mass Flow Rate of 0.063kg/s or 0.252kg/s, and the Rated Average Water Temperature between 32.2C and 115.6C.
maximum_water_flow_rate
Maximum Water Flow Rate required
number or Autosize
m3/s
surface_fractions list Each item: surface_name, fraction_of_radiant_energy_to_surface
Referenced by 4 object types

AirLoopHVAC:DedicatedOutdoorAirSystem, Branch, SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:Baseboard:RadiantConvective:Water:Design

from idfpy.models import ZoneHVACBaseboardRadiantConvectiveWaterDesign

Field Type Default Details
name
Name required
string
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the heating design capacity. HeatingDesignCapacity = > selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea = > selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity = > is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
convergence_tolerance
Convergence Tolerance
number 0.001 Range: > 0
fraction_radiant
Fraction Radiant required
number Range: ≥ 0, ≤ 1
fraction_of_radiant_energy_incident_on_people
Fraction of Radiant Energy Incident on People
number Range: ≥ 0, ≤ 1
Referenced by 4 object types

ZoneHVAC:Baseboard:RadiantConvective:Steam, ZoneHVAC:Baseboard:RadiantConvective:Water, ZoneHVAC:LowTemperatureRadiant:ConstantFlow, ZoneHVAC:LowTemperatureRadiant:VariableFlow

ZoneHVAC:CoolingPanel:RadiantConvective:Water

from idfpy.models import ZoneHVACCoolingPanelRadiantConvectiveWater extensible

The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
water_inlet_node_name
Water Inlet Node Name required
string
water_outlet_node_name
Water Outlet Node Name required
string
rated_inlet_water_temperature
Rated Inlet Water Temperature
number
C
5.0
rated_inlet_space_temperature
Rated Inlet Space Temperature
number
C
24.0
rated_water_mass_flow_rate
Rated Water Mass Flow Rate
number
kg/s
0.063 Range: > 0
cooling_design_capacity_method
Cooling Design Capacity Method
choice CoolingDesignCapacity Enter the method used to determine the cooling design capacity for scalable sizing. CoolingDesignCapacity => selected when the design cooling capacity value is specified or auto-sized. CapacityPerFloorArea => selected when the design cooling capacity is determined from user specified cooling capacity per floor area and total floor area of cooled zone served by the hydraulic unit. FractionOfAutosizedCoolingCapacity => is selected when the design cooling capacity is determined from a user specified fraction and the auto-sized design cooling capacity of the system.
One of CapacityPerFloorArea, CoolingDesignCapacity, FractionOfAutosizedCoolingCapacity, None
cooling_design_capacity
Cooling Design Capacity
number or Autosize
W
Enter the design cooling capacity. Required field when the cooling design capacity method CoolingDesignCapacity.
cooling_design_capacity_per_floor_area
Cooling Design Capacity Per Floor Area
number
W/m2
Enter the cooling design capacity per total floor area of cooled zones served by the unit. Required field when the cooling design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_cooling_design_capacity
Fraction of Autosized Cooling Design Capacity
number Enter the fraction of auto-sized cooling design capacity. Required field when the cooling design capacity method field is FractionOfAutosizedCoolingCapacity.
Range: ≥ 0
maximum_chilled_water_flow_rate
Maximum Chilled Water Flow Rate required
number or Autosize
m3/s
control_type
Control Type
choice MeanAirTemperature Temperature on which unit is controlled
One of MeanAirTemperature, MeanRadiantTemperature, OperativeTemperature, OutdoorDryBulbTemperature, OutdoorWetBulbTemperature, ZoneConvectiveLoad, ZoneTotalLoad
cooling_control_throttling_range
Cooling Control Throttling Range
number
deltaC
0.5 Range: ≥ 0.5
cooling_control_temperature_schedule_name
Cooling Control Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
condensation_control_type
Condensation Control Type
choice SimpleOff One of Off, SimpleOff, VariableOff
condensation_control_dewpoint_offset
Condensation Control Dewpoint Offset
number
C
1.0
fraction_radiant
Fraction Radiant required
number Range: ≥ 0, ≤ 1
fraction_of_radiant_energy_incident_on_people
Fraction of Radiant Energy Incident on People
number Range: ≥ 0, ≤ 1
surface_fractions list Each item: surface_name, fraction_of_radiant_energy_to_surface
Referenced by 4 object types

AirLoopHVAC:DedicatedOutdoorAirSystem, Branch, SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:HighTemperatureRadiant

from idfpy.models import ZoneHVACHighTemperatureRadiant extensible

The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
zone_name
Zone Name required
reference Name of zone system is serving
Names a Zone
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the maximum heating power input capacity. HeatingDesignCapacity = > selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea = > selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity = > is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity.
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
fuel_type
Fuel Type required
choice Natural gas or electricity
One of Electricity, NaturalGas
combustion_efficiency
Combustion Efficiency
number 0.9 Not used for non-gas radiant heaters
Range: ≥ 0, ≤ 1
fraction_of_input_converted_to_radiant_energy
Fraction of Input Converted to Radiant Energy
number 0.7 Radiant+latent+lost fractions must sum to 1 or less, remainder is considered convective heat
Range: ≥ 0, ≤ 1
fraction_of_input_converted_to_latent_energy
Fraction of Input Converted to Latent Energy
number 0.0 Range: ≥ 0, ≤ 1
fraction_of_input_that_is_lost
Fraction of Input that Is Lost
number 0.0 Fraction of input vented to outdoor environment
Range: ≥ 0, ≤ 1
temperature_control_type
Temperature Control Type
choice OperativeTemperature Temperature type used to control unit
One of MeanAirTemperature, MeanAirTemperatureSetpoint, MeanRadiantTemperature, MeanRadiantTemperatureSetpoint, OperativeTemperature, OperativeTemperatureSetpoint
heating_throttling_range
Heating Throttling Range
number
deltaC
2.0 Range: ≥ 0
heating_setpoint_temperature_schedule_name
Heating Setpoint Temperature Schedule Name required
reference This setpoint is a "mean air temperature", a "mean radiant temperature" or an "operative temperature" setpoint depending on the control type
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
fraction_of_radiant_energy_incident_on_people
Fraction of Radiant Energy Incident on People
number This will affect thermal comfort but from an energy balance standpoint this value gets added to the convective gains from the radiant heater
Range: ≥ 0, ≤ 1
surface_fractions list Each item: surface_name, fraction_of_radiant_energy_to_surface
Referenced by 2 object types

SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:LowTemperatureRadiant:ConstantFlow

from idfpy.models import ZoneHVACLowTemperatureRadiantConstantFlow

Low temperature hydronic radiant heating and/or cooling system embedded in a building surface (wall, ceiling, or floor). Controlled by varying the hot or chilled water temperature circulating through the unit.

Field Type Default Details
name
Name required
string
design_object
Design Object required
reference Names a ZoneHVAC:Baseboard:RadiantConvective:Water:Design, ZoneHVAC:LowTemperatureRadiant:ConstantFlow:Design, ZoneHVAC:LowTemperatureRadiant:VariableFlow:Design
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
zone_name
Zone Name
reference Name of zone system is serving
Names a Zone
surface_name_or_radiant_surface_group_name
Surface Name or Radiant Surface Group Name
reference Identifies surfaces that radiant system is embedded in. For a system with multiple surfaces, enter the name of a ZoneHVAC:LowTemperatureRadiant:SurfaceGroup object.
Names a BuildingSurface:Detailed, Ceiling:Adiabatic, Ceiling:Interzone, Door, Door:Interzone, FenestrationSurface:Detailed, Floor:Adiabatic, Floor:Detailed, Floor:GroundContact, Floor:Interzone, InternalMass, Roof and 7 more
hydronic_tubing_length
Hydronic Tubing Length
number or Autosize
m
Autosize (total length of pipe embedded in surface)
rated_flow_rate
Rated Flow Rate
number or Autosize
m3/s
pump_flow_rate_schedule_name
Pump Flow Rate Schedule Name
reference Modifies the Rated Flow Rate of the pump on a time basis the default is that the pump is ON and runs according to its other operational requirements specified above. The schedule is for special pump operations. Values here are between 0 and 1 and are multipliers on the previous field (Rated Flow Rate).
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
rated_pump_head
Rated Pump Head
number
Pa
179352.0 default head is 60 feet
rated_power_consumption
Rated Power Consumption
number
W
heating_water_inlet_node_name
Heating Water Inlet Node Name
string
heating_water_outlet_node_name
Heating Water Outlet Node Name
string
heating_high_water_temperature_schedule_name
Heating High Water Temperature Schedule Name
reference Water and control temperatures for heating work together to provide a linear function that determines the water temperature sent to the radiant system. The current control temperature (see Temperature Control Type above) is compared to the high and low control temperatures at the current time. If the control temperature is above the high temperature, then the inlet water temperature is set to the low water temperature. If the control temperature is below the low temperature, then the inlet water temperature is set to the high water temperature. If the control temperature is between the high and low value, then the inlet water temperature is linearly interpolated between the low and high water temperature values.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_low_water_temperature_schedule_name
Heating Low Water Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_high_control_temperature_schedule_name
Heating High Control Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_low_control_temperature_schedule_name
Heating Low Control Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_water_inlet_node_name
Cooling Water Inlet Node Name
string
cooling_water_outlet_node_name
Cooling Water Outlet Node Name
string
cooling_high_water_temperature_schedule_name
Cooling High Water Temperature Schedule Name
reference See note for Heating High Water Temperature Schedule above for interpretation information (or see the Input/Output Reference).
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_low_water_temperature_schedule_name
Cooling Low Water Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_high_control_temperature_schedule_name
Cooling High Control Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_low_control_temperature_schedule_name
Cooling Low Control Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
number_of_circuits
Number of Circuits
choice OnePerSurface One of CalculateFromCircuitLength, OnePerSurface
circuit_length
Circuit Length
number
m
106.7
Referenced by 4 object types

AirLoopHVAC:DedicatedOutdoorAirSystem, Branch, SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:LowTemperatureRadiant:ConstantFlow:Design

from idfpy.models import ZoneHVACLowTemperatureRadiantConstantFlowDesign

Field Type Default Details
name
Name required
string
fluid_to_radiant_surface_heat_transfer_model
Fluid to Radiant Surface Heat Transfer Model
choice ConvectionOnly This parameter identifies how the heat transfer between fluid being circulated through the radiant system and the radiant system (slab) is modeled. ConvectionOnly means that only convection between the fluid and the inside surface of the pipe is modeled using a conventional equation for flow inside a pipe. ISOStandard models convection between the fluid and the inside of of the pipe and conduction through the pipe material using equations specific to ISO Standard 11855-2.
One of ConvectionOnly, ISOStandard
hydronic_tubing_inside_diameter
Hydronic Tubing Inside Diameter
number
m
0.013 Range: > 0
hydronic_tubing_outside_diameter
Hydronic Tubing Outside Diameter
number
m
0.016 Range: > 0
hydronic_tubing_conductivity
Hydronic Tubing Conductivity
number
W/m-K
0.35 Conductivity of the tubing/piping material
Range: > 0
temperature_control_type
Temperature Control Type
choice MeanAirTemperature Temperature used to control system
One of MeanAirTemperature, MeanRadiantTemperature, OperativeTemperature, OutdoorDryBulbTemperature, OutdoorWetBulbTemperature, RunningMeanOutdoorDryBulbTemperature, SurfaceFaceTemperature, SurfaceInteriorTemperature
running_mean_outdoor_dry_bulb_temperature_weighting_factor
Running Mean Outdoor Dry-Bulb Temperature Weighting Factor
number 0.8 this is the weighting factor in the equation that calculate the running mean outdoor dry-bulb temperature as a weighted average of the previous day’s running mean outdoor dry-bulb temperature and the previous day’s average outdoor dry-bulb temperature this value is only used by EnergyPlus when the user elects to use the RunningMeanOutdoorDryBulbTemperature control type
Range: ≥ 0, ≤ 1
motor_efficiency
Motor Efficiency
number 0.9 Range: ≥ 0, ≤ 1
fraction_of_motor_inefficiencies_to_fluid_stream
Fraction of Motor Inefficiencies to Fluid Stream
number 0.0 Range: ≥ 0, ≤ 1
condensation_control_type
Condensation Control Type
choice SimpleOff One of Off, SimpleOff, VariableOff
condensation_control_dewpoint_offset
Condensation Control Dewpoint Offset
number
C
1.0
changeover_delay_time_period_schedule
Changeover Delay Time Period Schedule
reference Changeover delay schedule name for this system. Schedule value <= 0 allows changeover with no delay The schedule values are interpreted as hours. If this field is blank, the system allows changeover with no delay
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
Referenced by 4 object types

ZoneHVAC:Baseboard:RadiantConvective:Steam, ZoneHVAC:Baseboard:RadiantConvective:Water, ZoneHVAC:LowTemperatureRadiant:ConstantFlow, ZoneHVAC:LowTemperatureRadiant:VariableFlow

ZoneHVAC:LowTemperatureRadiant:Electric

from idfpy.models import ZoneHVACLowTemperatureRadiantElectric

Electric resistance low temperature radiant system

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
zone_name
Zone Name
reference Name of zone system is serving
Names a Zone
surface_name_or_radiant_surface_group_name
Surface Name or Radiant Surface Group Name
reference Identifies surfaces that radiant system is embedded in. For a system with multiple surfaces, enter the name of a ZoneHVAC:LowTemperatureRadiant:SurfaceGroup object.
Names a BuildingSurface:Detailed, Ceiling:Adiabatic, Ceiling:Interzone, Door, Door:Interzone, FenestrationSurface:Detailed, Floor:Adiabatic, Floor:Detailed, Floor:GroundContact, Floor:Interzone, InternalMass, Roof and 7 more
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the maximum electrical heating design capacity. HeatingDesignCapacity = > selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea = > selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity = > is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity.
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
temperature_control_type
Temperature Control Type
choice MeanAirTemperature Temperature used to control unit
One of MeanAirTemperature, MeanRadiantTemperature, OperativeTemperature, OutdoorDryBulbTemperature, OutdoorWetBulbTemperature, SurfaceFaceTemperature, SurfaceInteriorTemperature
setpoint_control_type
Setpoint Control Type
choice HalfFlowPower How setpoint temperature is defined
One of HalfFlowPower, ZeroFlowPower
heating_throttling_range
Heating Throttling Range
number
deltaC
0.0 Range: ≥ 0
heating_setpoint_temperature_schedule_name
Heating Setpoint Temperature Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
Referenced by 2 object types

SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:LowTemperatureRadiant:SurfaceGroup

from idfpy.models import ZoneHVACLowTemperatureRadiantSurfaceGroup extensible

This is used to allow the coordinate control of several radiant system surfaces. Note that the following flow fractions must sum up to 1.0 The number of surfaces can be expanded beyond 100, if necessary, by adding more groups to the end of the list

Field Type Default Details
name
Name required
string
surface_fractions list Each item: surface_name, flow_fraction_for_surface
Referenced by 3 object types

ZoneHVAC:LowTemperatureRadiant:ConstantFlow, ZoneHVAC:LowTemperatureRadiant:Electric, ZoneHVAC:LowTemperatureRadiant:VariableFlow

ZoneHVAC:LowTemperatureRadiant:VariableFlow

from idfpy.models import ZoneHVACLowTemperatureRadiantVariableFlow

Low temperature hydronic radiant heating and/or cooling system embedded in a building surface (wall, ceiling, or floor). Controlled by varying the hot or chilled water flow to the unit.

Field Type Default Details
name
Name required
string
design_object
Design Object required
reference Names a ZoneHVAC:Baseboard:RadiantConvective:Water:Design, ZoneHVAC:LowTemperatureRadiant:ConstantFlow:Design, ZoneHVAC:LowTemperatureRadiant:VariableFlow:Design
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
zone_name
Zone Name
reference Name of zone system is serving
Names a Zone
surface_name_or_radiant_surface_group_name
Surface Name or Radiant Surface Group Name
reference Identifies surfaces that radiant system is embedded in. For a system with multiple surfaces, enter the name of a ZoneHVAC:LowTemperatureRadiant:SurfaceGroup object.
Names a BuildingSurface:Detailed, Ceiling:Adiabatic, Ceiling:Interzone, Door, Door:Interzone, FenestrationSurface:Detailed, Floor:Adiabatic, Floor:Detailed, Floor:GroundContact, Floor:Interzone, InternalMass, Roof and 7 more
hydronic_tubing_length
Hydronic Tubing Length
number or Autosize
m
Autosize (total length of pipe embedded in surface)
heating_design_capacity
Heating Design Capacity
number or Autosize
W
Autosize Enter the design heating capacity. Required field when the heating design capacity method HeatingDesignCapacity.
maximum_hot_water_flow
Maximum Hot Water Flow
number or Autosize
m3/s
heating_water_inlet_node_name
Heating Water Inlet Node Name
string
heating_water_outlet_node_name
Heating Water Outlet Node Name
string
cooling_design_capacity
Cooling Design Capacity
number or Autosize
W
Enter the design cooling capacity. Required field when the cooling design capacity method CoolingDesignCapacity.
maximum_cold_water_flow
Maximum Cold Water Flow
number or Autosize
m3/s
cooling_water_inlet_node_name
Cooling Water Inlet Node Name
string
cooling_water_outlet_node_name
Cooling Water Outlet Node Name
string
number_of_circuits
Number of Circuits
choice OnePerSurface One of CalculateFromCircuitLength, OnePerSurface
circuit_length
Circuit Length
number
m
106.7
Referenced by 4 object types

AirLoopHVAC:DedicatedOutdoorAirSystem, Branch, SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:LowTemperatureRadiant:VariableFlow:Design

from idfpy.models import ZoneHVACLowTemperatureRadiantVariableFlowDesign

Field Type Default Details
name
Name
string
fluid_to_radiant_surface_heat_transfer_model
Fluid to Radiant Surface Heat Transfer Model
choice ConvectionOnly This parameter identifies how the heat transfer between fluid being circulated through the radiant system and the radiant system (slab) is modeled. ConvectionOnly means that only convection between the fluid and the inside surface of the pipe is modeled using a conventional equation for flow inside a pipe. ISOStandard models convection between the fluid and the inside of of the pipe and conduction through the pipe material using equations specific to ISO Standard 11855-2.
One of ConvectionOnly, ISOStandard
hydronic_tubing_inside_diameter
Hydronic Tubing Inside Diameter
number
m
0.013 Range: > 0
hydronic_tubing_outside_diameter
Hydronic Tubing Outside Diameter
number
m
0.016 Range: > 0
hydronic_tubing_conductivity
Hydronic Tubing Conductivity
number
W/m-K
0.35 Conductivity of the tubing/piping material
Range: > 0
temperature_control_type
Temperature Control Type
choice MeanAirTemperature (Temperature on which unit is controlled)
One of MeanAirTemperature, MeanRadiantTemperature, OperativeTemperature, OutdoorDryBulbTemperature, OutdoorWetBulbTemperature, SurfaceFaceTemperature, SurfaceInteriorTemperature
setpoint_control_type
Setpoint Control Type
choice HalfFlowPower How setpoint temperature is defined
One of HalfFlowPower, ZeroFlowPower
heating_design_capacity_method
Heating Design Capacity Method
choice HeatingDesignCapacity Enter the method used to determine the heating design capacity. HeatingDesignCapacity = > selected when the design heating capacity value or autosize is specified. CapacityPerFloorArea = > selected when the design heating capacity is determine from user specified heating capacity per floor area and zone floor area. FractionOfAutosizedHeatingCapacity = > is selected when the design heating capacity is determined from a user specified fraction and the auto-sized design heating capacity.
One of CapacityPerFloorArea, FractionOfAutosizedHeatingCapacity, HeatingDesignCapacity
heating_design_capacity_per_floor_area
Heating Design Capacity Per Floor Area
number
W/m2
Enter the heating design capacity per zone floor area. Required field when the heating design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_heating_design_capacity
Fraction of Autosized Heating Design Capacity
number 1.0 Enter the fraction of autosized heating design capacity. Required field when capacity the heating design capacity method field is FractionOfAutosizedHeatingCapacity.
Range: ≥ 0
heating_control_throttling_range
Heating Control Throttling Range
number
deltaC
0.5 Range: ≥ 0
heating_control_temperature_schedule_name
Heating Control Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_design_capacity_method
Cooling Design Capacity Method
choice CoolingDesignCapacity Enter the method used to determine the cooling design capacity for scalable sizing. CoolingDesignCapacity => selected when the design cooling capacity value is specified or auto-sized. CapacityPerFloorArea => selected when the design cooling capacity is determined from user specified cooling capacity per floor area and total floor area of cooled zone served by the hydraulic unit. FractionOfAutosizedCoolingCapacity => is selected when the design cooling capacity is determined from a user specified fraction and the auto-sized design cooling capacity of the system.
One of CapacityPerFloorArea, CoolingDesignCapacity, FractionOfAutosizedCoolingCapacity, None
cooling_design_capacity_per_floor_area
Cooling Design Capacity Per Floor Area
number
W/m2
Enter the cooling design capacity per total floor area of cooled zones served by the unit. Required field when the cooling design capacity method field is CapacityPerFloorArea.
Range: ≥ 0
fraction_of_autosized_cooling_design_capacity
Fraction of Autosized Cooling Design Capacity
number Enter the fraction of auto-sized cooling design capacity. Required field when the cooling design capacity method field is FractionOfAutosizedCoolingCapacity.
Range: ≥ 0
cooling_control_throttling_range
Cooling Control Throttling Range
number
deltaC
0.5 Range: ≥ 0
cooling_control_temperature_schedule_name
Cooling Control Temperature Schedule Name
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
condensation_control_type
Condensation Control Type
choice SimpleOff One of Off, SimpleOff, VariableOff
condensation_control_dewpoint_offset
Condensation Control Dewpoint Offset
number
C
1.0
changeover_delay_time_period_schedule
Changeover Delay Time Period Schedule
reference Changeover delay schedule name for this system. Schedule value <= 0 allows changeover with no delay The schedule values are interpreted as hours. If this field is blank, the system allows changeover with no delay
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
Referenced by 4 object types

ZoneHVAC:Baseboard:RadiantConvective:Steam, ZoneHVAC:Baseboard:RadiantConvective:Water, ZoneHVAC:LowTemperatureRadiant:ConstantFlow, ZoneHVAC:LowTemperatureRadiant:VariableFlow

ZoneHVAC:VentilatedSlab

from idfpy.models import ZoneHVACVentilatedSlab

Ventilated slab system where outdoor air flows through hollow cores in a building surface (wall, ceiling, or floor).

Field Type Default Details
name
Name required
string
availability_schedule_name
Availability Schedule Name
reference Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
zone_name
Zone Name required
reference (name of zone system is serving)
Names a Zone
surface_name_or_radiant_surface_group_name
Surface Name or Radiant Surface Group Name
reference (name of surface system is embedded in) or list of surfaces
Names a BuildingSurface:Detailed, Ceiling:Adiabatic, Ceiling:Interzone, Door, Door:Interzone, FenestrationSurface:Detailed, Floor:Adiabatic, Floor:Detailed, Floor:GroundContact, Floor:Interzone, InternalMass, Roof and 7 more
maximum_air_flow_rate
Maximum Air Flow Rate required
number or Autosize
m3/s
outdoor_air_control_type
Outdoor Air Control Type required
choice One of FixedAmount, FixedTemperature, VariablePercent
minimum_outdoor_air_flow_rate
Minimum Outdoor Air Flow Rate required
number or Autosize
m3/s
minimum_outdoor_air_schedule_name
Minimum Outdoor Air Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
maximum_outdoor_air_flow_rate
Maximum Outdoor Air Flow Rate required
number or Autosize
m3/s
schedule values multiply the minimum outdoor air flow rate
maximum_outdoor_air_fraction_or_temperature_schedule_name
Maximum Outdoor Air Fraction or Temperature Schedule Name required
reference Note that this depends on the control type as to whether schedule values are a fraction or temperature
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
system_configuration_type
System Configuration Type
choice SlabOnly One of SeriesSlabs, SlabAndZone, SlabOnly
hollow_core_inside_diameter
Hollow Core Inside Diameter
number
m
0.05 Range: ≥ 0
hollow_core_length
Hollow Core Length
number
m
(length of core cavity embedded in surface)
Range: ≥ 0
number_of_cores
Number of Cores
number flow will be divided evenly among the cores
Range: ≥ 0
temperature_control_type
Temperature Control Type
choice OutdoorDryBulbTemperature (temperature on which unit is controlled)
One of MeanAirTemperature, MeanRadiantTemperature, OperativeTemperature, OutdoorDryBulbTemperature, OutdoorWetBulbTemperature, SurfaceTemperature, ZoneAirDewPointTemperature
heating_high_air_temperature_schedule_name
Heating High Air Temperature Schedule Name required
reference Air and control temperatures for heating work together to provide a linear function that determines the air temperature sent to the radiant system. The current control temperature (see A14) is compared to the high and low control temperatures at the current time. If the control temperature is above the high temperature, then the inlet air temperature is set to the low air temperature. If the control temperature is below the low temperature, then the inlet air temperature is set to the high air temperature. If the control temperature is between the high and low value, then the inlet air temperature is linearly interpolated between the low and high air temperature values.
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_low_air_temperature_schedule_name
Heating Low Air Temperature Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_high_control_temperature_schedule_name
Heating High Control Temperature Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
heating_low_control_temperature_schedule_name
Heating Low Control Temperature Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_high_air_temperature_schedule_name
Cooling High Air Temperature Schedule Name required
reference See note for heating high air temperature schedule above for interpretation information (or see the Input/Output Reference).
Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_low_air_temperature_schedule_name
Cooling Low Air Temperature Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_high_control_temperature_schedule_name
Cooling High Control Temperature Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
cooling_low_control_temperature_schedule_name
Cooling Low Control Temperature Schedule Name required
reference Names a ExternalInterface:FunctionalMockupUnitExport:To:Schedule, ExternalInterface:FunctionalMockupUnitImport:To:Schedule, ExternalInterface:Schedule, Schedule:Compact, Schedule:Constant, Schedule:File, Schedule:Year, Schedule:Year:Rules
return_air_node_name
Return Air Node Name required
string This is the zone return air inlet to the ventilated slab system outdoor air mixer. This node is typically a zone exhaust node (do not connect to "Zone Return Air Node").
slab_in_node_name
Slab In Node Name required
string This is the node entering the slab or series of slabs after the fan and coil(s).
zone_supply_air_node_name
Zone Supply Air Node Name
string This is the node name exiting the slab. This node is typically a zone inlet node. Leave blank when the system configuration is SlabOnly or SeriesSlabs.
outdoor_air_node_name
Outdoor Air Node Name required
string This node is the outdoor air inlet to the ventilated slab oa mixer. This node should also be specified in an OutdoorAir:Node or OutdoorAir:NodeList object.
relief_air_node_name
Relief Air Node Name required
string This node is the relief air node from the ventilated slab outdoor air mixer.
outdoor_air_mixer_outlet_node_name
Outdoor Air Mixer Outlet Node Name required
string This is the node name leaving the outdoor air mixer and entering the fan and coil(s).
fan_outlet_node_name
Fan Outlet Node Name required
string This is the node name of the fan outlet.
fan_name
Fan Name required
reference Allowable fan types are Fan:SystemModel and Fan:ConstantVolume
Names a Fan:ConstantVolume, Fan:SystemModel
coil_option_type
Coil Option Type required
choice One of Cooling, Heating, HeatingAndCooling, None
heating_coil_object_type
Heating Coil Object Type
choice One of Coil:Heating:Electric, Coil:Heating:Fuel, Coil:Heating:Steam, Coil:Heating:Water
heating_coil_name
Heating Coil Name
reference Names a Coil:Heating:Electric, Coil:Heating:Fuel, Coil:Heating:Steam, Coil:Heating:Water
hot_water_or_steam_inlet_node_name
Hot Water or Steam Inlet Node Name
string
cooling_coil_object_type
Cooling Coil Object Type
choice One of Coil:Cooling:Water, Coil:Cooling:Water:DetailedGeometry, CoilSystem:Cooling:Water:HeatExchangerAssisted
cooling_coil_name
Cooling Coil Name
reference Names a Coil:Cooling:Water, Coil:Cooling:Water:DetailedGeometry, CoilSystem:Cooling:Water:HeatExchangerAssisted
cold_water_inlet_node_name
Cold Water Inlet Node Name
string
availability_manager_list_name
Availability Manager List Name
reference Enter the name of an AvailabilityManagerAssignmentList object.
Names a AvailabilityManagerAssignmentList
design_specification_zonehvac_sizing_object_name
Design Specification ZoneHVAC Sizing Object Name
reference Enter the name of a DesignSpecificationZoneHVACSizing object.
Names a DesignSpecification:ZoneHVAC:Sizing
Referenced by 2 object types

SpaceHVAC:ZoneEquipmentSplitter, ZoneHVAC:EquipmentList

ZoneHVAC:VentilatedSlab:SlabGroup

from idfpy.models import ZoneHVACVentilatedSlabSlabGroup extensible

This is used to allow the coordinate control of several ventilated slab system surfaces. Note that the flow fractions must sum up to 1.0. The number of surfaces can be expanded beyond 10, if necessary, by adding more groups to the end of the list

Field Type Default Details
name
Name required
string
data list Each item: zone_name, surface_name, core_diameter_for_surface (m), core_length_for_surface (m), core_numbers_for_surface, slab_inlet_node_name_for_surface, slab_outlet_node_name_for_surface
Referenced by 1 object types

ZoneHVAC:VentilatedSlab