Description: "Package with models for the thermal zones"

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## Buildings.Examples.VAVReheat.ThermalZones

Package with models for the thermal zones

### Information

Extends from Modelica.Icons.VariantsPackage (Icon for package containing variants).

### Package Content

Name | Description
--- | ---
Floor | Model of a floor of the building
RoomLeakage | Room leakage model
VAVBranch | Supply branch of a VAV system

## Buildings.Examples.VAVReheat.ThermalZones.Floor

Model of a floor of the building

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
replaceable package Medium | Modelica.Media.Interfaces.Pa... | Medium model for air
InteriorConvection | intConMod | Buildings.HeatTransfer.Types... | Convective heat transfer model for room-facing surfaces of opaque constructions
Angle | lat |  | Latitude [rad]
Real | winWalRat | 0.33 | Window to wall ratio for exterior walls
Length | hWin | 1.5 | Height of windows [m]
Plywood | matFur |  | Material for furniture
Carpet | matCar |  | Carpet
Concrete | matCon |  | Concrete
Plywood | matWoo |  | Wood for exterior construction
Generic | matIns |  | Steelframe construction with insulation
GypsumBoard | matGyp |  | Gypsum board
GypsumBoard | matGyp2 |  | Gypsum board
Generic | conExtWal |  | Exterior construction
Generic | conIntWal |  | Interior wall construction
Generic | conFlo |  | Floor construction (opa_a is carpet)
Generic | conFur |  | Construction for internal mass of furniture
Plywood | matCarTra |  | Wood for floor
DoubleClearAir13Clear | glaSys |  | Data record for the glazing system

### Connectors

Type | Name | Description
--- | --- | ---
replaceable package Medium | Medium model for air
VesselFluidPorts_b | portsSou[2] | Fluid inlets and outlets
VesselFluidPorts_b | portsEas[2] | Fluid inlets and outlets
VesselFluidPorts_b | portsNor[2] | Fluid inlets and outlets
VesselFluidPorts_b | portsWes[2] | Fluid inlets and outlets
VesselFluidPorts_b | portsCor[2] | Fluid inlets and outlets
Bus | weaBus | Weather bus
output RealOutput | TRooAir[5] | Room air temperatures
output RealOutput | p_rel | Relative pressure signal of building static pressure

### Modelica definition

model Floor "Model of a floor of the building" replaceable package Medium = Modelica.Media.Interfaces.PartialMedium "Medium model for air"; parameter HeatTransfer.Types.InteriorConvection intConMod=Buildings.HeatTransfer.Types.InteriorConvection.Temperature "Convective heat transfer model for room-facing surfaces of opaque constructions"; parameter Modelica.SIunits.Angle lat "Latitude"; parameter Real winWalRat( min=0.01, max=0.99) = 0.33 "Window to wall ratio for exterior walls"; parameter Modelica.SIunits.Length hWin = 1.5 "Height of windows"; parameter HeatTransfer.Data.Solids.Plywood matFur(x=0.15, nStaRef=5) "Material for furniture"; parameter HeatTransfer.Data.Resistances.Carpet matCar "Carpet"; parameter HeatTransfer.Data.Solids.Concrete matCon( x=0.1, k=1.311, c=836, nStaRef=5) "Concrete"; parameter HeatTransfer.Data.Solids.Plywood matWoo( x=0.01, k=0.11, d=544, nStaRef=1) "Wood for exterior construction"; parameter HeatTransfer.Data.Solids.Generic matIns( x=0.087, k=0.049, c=836.8, d=265, nStaRef=5) "Steelframe construction with insulation"; parameter HeatTransfer.Data.Solids.GypsumBoard matGyp( x=0.0127, k=0.16, c=830, d=784, nStaRef=2) "Gypsum board"; parameter HeatTransfer.Data.Solids.GypsumBoard matGyp2( x=0.025, k=0.16, c=830, d=784, nStaRef=2) "Gypsum board"; parameter HeatTransfer.Data.OpaqueConstructions.Generic conExtWal(final nLay=3, material={matWoo,matIns,matGyp}) "Exterior construction"; parameter HeatTransfer.Data.OpaqueConstructions.Generic conIntWal(final nLay=1, material={matGyp2}) "Interior wall construction"; parameter HeatTransfer.Data.OpaqueConstructions.Generic conFlo(final nLay=1, material={ matCon}) "Floor construction (opa_a is carpet)"; parameter HeatTransfer.Data.OpaqueConstructions.Generic conFur(final nLay=1, material={ matFur}) "Construction for internal mass of furniture"; parameter HeatTransfer.Data.Solids.Plywood matCarTra( k=0.11, d=544, nStaRef=1, x=0.215/0.11) "Wood for floor"; parameter HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys( UFra=2, shade=Buildings.HeatTransfer.Data.Shades.Gray(), haveInteriorShade=false, haveExteriorShade=false) "Data record for the glazing system"; constant Modelica.SIunits.Height hRoo=2.74 "Room height"; Rooms.MixedAir sou( redeclare package Medium = Medium, lat=lat, AFlo=568.77/hRoo, hRoo=hRoo, nConExt=0, nConExtWin=1, datConExtWin( layers={conExtWal}, A={49.91*hRoo}, glaSys={glaSys}, wWin={winWalRat/hWin*49.91*hRoo}, each hWin=hWin, fFra={0.1}, til={Buildings.Types.Tilt.Wall}, azi={Buildings.Types.Azimuth.S}), nConPar=2, datConPar( layers={conFlo,conFur}, A={568.77/hRoo,414.68}, til={Buildings.Types.Tilt.Floor,Buildings.Types.Tilt.Wall}), nConBou=3, datConBou( layers={conIntWal,conIntWal,conIntWal}, A={6.47,40.76,6.47}*hRoo, til={Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall}), nSurBou=0, nPorts=5, intConMod=intConMod, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial) "South zone"; Rooms.MixedAir eas( redeclare package Medium = Medium, lat=lat, AFlo=360.0785/hRoo, hRoo=hRoo, nConExt=0, nConExtWin=1, datConExtWin( layers={conExtWal}, A={33.27*hRoo}, glaSys={glaSys}, wWin={winWalRat/hWin*33.27*hRoo}, each hWin=hWin, fFra={0.1}, til={Buildings.Types.Tilt.Wall}, azi={Buildings.Types.Azimuth.E}), nConPar=2, datConPar( layers={conFlo,conFur}, A={360.0785/hRoo,262.52}, til={Buildings.Types.Tilt.Floor,Buildings.Types.Tilt.Wall}), nConBou=1, datConBou( layers={conIntWal}, A={24.13}*hRoo, til={Buildings.Types.Tilt.Wall}), nSurBou=2, surBou( each A=6.47*hRoo, each absIR=0.9, each absSol=0.9, til={Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall}), nPorts=5, intConMod=intConMod, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial) "East zone"; Rooms.MixedAir nor( redeclare package Medium = Medium, lat=lat, AFlo=568.77/hRoo, hRoo=hRoo, nConExt=0, nConExtWin=1, datConExtWin( layers={conExtWal}, A={49.91*hRoo}, glaSys={glaSys}, wWin={winWalRat/hWin*49.91*hRoo}, each hWin=hWin, fFra={0.1}, til={Buildings.Types.Tilt.Wall}, azi={Buildings.Types.Azimuth.N}), nConPar=2, datConPar( layers={conFlo,conFur}, A={568.77/hRoo,414.68}, til={Buildings.Types.Tilt.Floor,Buildings.Types.Tilt.Wall}), nConBou=3, datConBou( layers={conIntWal,conIntWal,conIntWal}, A={6.47,40.76,6.47}*hRoo, til={Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall}), nSurBou=0, nPorts=5, intConMod=intConMod, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial) "North zone"; Rooms.MixedAir wes( redeclare package Medium = Medium, lat=lat, AFlo=360.0785/hRoo, hRoo=hRoo, nConExt=0, nConExtWin=1, datConExtWin( layers={conExtWal}, A={33.27*hRoo}, glaSys={glaSys}, wWin={winWalRat/hWin*33.27*hRoo}, each hWin=hWin, fFra={0.1}, til={Buildings.Types.Tilt.Wall}, azi={Buildings.Types.Azimuth.W}), nConPar=2, datConPar( layers={conFlo,conFur}, A={360.0785/hRoo,262.52}, til={Buildings.Types.Tilt.Floor,Buildings.Types.Tilt.Wall}), nConBou=1, datConBou( layers={conIntWal}, A={24.13}*hRoo, til={Buildings.Types.Tilt.Wall}), nSurBou=2, surBou( each A=6.47*hRoo, each absIR=0.9, each absSol=0.9, til={Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall}), nPorts=5, intConMod=intConMod, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial) "West zone"; Rooms.MixedAir cor( redeclare package Medium = Medium, lat=lat, AFlo=2698/hRoo, hRoo=hRoo, nConExt=0, nConExtWin=0, nConPar=2, datConPar( layers={conFlo,conFur}, A={360.0785/hRoo,262.52}, til={Buildings.Types.Tilt.Floor,Buildings.Types.Tilt.Wall}), nConBou=0, nSurBou=4, surBou( A={40.76,24.13,40.76,24.13}*hRoo, each absIR=0.9, each absSol=0.9, til={Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall, Buildings.Types.Tilt.Wall}), nPorts=11, intConMod=intConMod, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial) "Core zone"; Modelica.Fluid.Vessels.BaseClasses.VesselFluidPorts_b portsSou[2]( redeclare package Medium = Medium) "Fluid inlets and outlets"; Modelica.Fluid.Vessels.BaseClasses.VesselFluidPorts_b portsEas[2]( redeclare package Medium = Medium) "Fluid inlets and outlets"; Modelica.Fluid.Vessels.BaseClasses.VesselFluidPorts_b portsNor[2]( redeclare package Medium = Medium) "Fluid inlets and outlets"; Modelica.Fluid.Vessels.BaseClasses.VesselFluidPorts_b portsWes[2]( redeclare package Medium = Medium) "Fluid inlets and outlets"; Modelica.Fluid.Vessels.BaseClasses.VesselFluidPorts_b portsCor[2]( redeclare package Medium = Medium) "Fluid inlets and outlets"; Modelica.Blocks.Math.MatrixGain gai(K=20*[0.4; 0.4; 0.2]) "Matrix gain to split up heat gain in radiant, convective and latent gain"; Modelica.Blocks.Sources.Constant uSha(k=0) "Control signal for the shading device"; Modelica.Blocks.Routing.Replicator replicator(nout=1); BoundaryConditions.WeatherData.Bus weaBus "Weather bus"; RoomLeakage leaSou(redeclare package Medium = Medium, VRoo=568.77, s=49.91/33.27, azi=Buildings.Types.Azimuth.S) "Model for air infiltration through the envelope"; RoomLeakage leaEas(redeclare package Medium = Medium, VRoo=360.0785, s=33.27/49.91, azi=Buildings.Types.Azimuth.E) "Model for air infiltration through the envelope"; RoomLeakage leaNor(redeclare package Medium = Medium, VRoo=568.77, s=49.91/33.27, azi=Buildings.Types.Azimuth.N) "Model for air infiltration through the envelope"; RoomLeakage leaWes(redeclare package Medium = Medium, VRoo=360.0785, s=33.27/49.91, azi=Buildings.Types.Azimuth.W) "Model for air infiltration through the envelope"; Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor temAirSou "Air temperature sensor"; Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor temAirEas "Air temperature sensor"; Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor temAirNor "Air temperature sensor"; Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor temAirWes "Air temperature sensor"; Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor temAirPer5 "Air temperature sensor"; Modelica.Blocks.Routing.Multiplex5 multiplex5_1; Modelica.Blocks.Interfaces.RealOutput TRooAir[5] "Room air temperatures"; Airflow.Multizone.DoorDiscretizedOpen opeSouCor(redeclare package Medium = Medium, wOpe=10) "Opening between perimeter1 and core"; Airflow.Multizone.DoorDiscretizedOpen opeEasCor(redeclare package Medium = Medium, wOpe=10) "Opening between perimeter2 and core"; Airflow.Multizone.DoorDiscretizedOpen opeNorCor(redeclare package Medium = Medium, wOpe=10) "Opening between perimeter3 and core"; Airflow.Multizone.DoorDiscretizedOpen opeWesCor(redeclare package Medium = Medium, wOpe=10) "Opening between perimeter3 and core"; Modelica.Blocks.Sources.CombiTimeTable intGaiFra( table=[0,0.05; 3600*8,0.05; 3600*9,0.9; 3600*12,0.9; 3600*12,0.8; 3600*13,0.8; 3600*13,1; 3600*17,1; 3600*19,0.1; 3600*24,0.05], extrapolation=Modelica.Blocks.Types.Extrapolation.Periodic) "Fraction of internal heat gain"; Fluid.Sensors.RelativePressure senRelPre(redeclare package Medium = Medium) "Building pressure measurement"; Fluid.Sources.Outside out(nPorts=1, redeclare package Medium = Medium); Modelica.Blocks.Interfaces.RealOutput p_rel "Relative pressure signal of building static pressure"; equation connect(sou.surf_conBou[1], wes.surf_surBou[2]); connect(sou.surf_conBou[2], cor.surf_surBou[1]); connect(sou.surf_conBou[3], eas.surf_surBou[1]); connect(eas.surf_conBou[1], cor.surf_surBou[2]); connect(eas.surf_surBou[2], nor.surf_conBou[1]); connect(nor.surf_conBou[2], cor.surf_surBou[3]); connect(nor.surf_conBou[3], wes.surf_surBou[1]); connect(wes.surf_conBou[1], cor.surf_surBou[4]); connect(uSha.y, replicator.u); connect(replicator.y, nor.uSha); connect(replicator.y, wes.uSha); connect(replicator.y, eas.uSha); connect(replicator.y, sou.uSha); connect(replicator.y, cor.uSha); connect(gai.y, nor.qGai_flow); connect(gai.y, cor.qGai_flow); connect(gai.y, sou.qGai_flow); connect(gai.y, eas.qGai_flow); connect(gai.y, wes.qGai_flow); connect(sou.weaBus, weaBus); connect(eas.weaBus, weaBus); connect(nor.weaBus, weaBus); connect(wes.weaBus, weaBus); connect(cor.weaBus, weaBus); connect(weaBus, leaSou.weaBus); connect(weaBus, leaEas.weaBus); connect(weaBus, leaNor.weaBus); connect(weaBus, leaWes.weaBus); connect(multiplex5_1.y, TRooAir); connect(temAirSou.T, multiplex5_1.u1[1]); connect(temAirEas.T, multiplex5_1.u2[1]); connect(temAirNor.T, multiplex5_1.u3[1]); connect(temAirWes.T, multiplex5_1.u4[1]); connect(temAirPer5.T, multiplex5_1.u5[1]); connect(sou.heaPorAir, temAirSou.port); connect(eas.heaPorAir, temAirEas.port); connect(nor.heaPorAir, temAirNor.port); connect(wes.heaPorAir, temAirWes.port); connect(cor.heaPorAir, temAirPer5.port); connect(sou.ports[1], portsSou[1]); connect(sou.ports[2], portsSou[2]); connect(eas.ports[1], portsEas[1]); connect(eas.ports[2], portsEas[2]); connect(nor.ports[1], portsNor[1]); connect(nor.ports[2], portsNor[2]); connect(wes.ports[1], portsWes[1]); connect(wes.ports[2], portsWes[2]); connect(cor.ports[1], portsCor[1]); connect(cor.ports[2], portsCor[2]); connect(leaSou.port_b, sou.ports[3]); connect(leaEas.port_b, eas.ports[3]); connect(leaNor.port_b, nor.ports[3]); connect(leaWes.port_b, wes.ports[3]); connect(opeSouCor.port_b1, cor.ports[3]); connect(opeSouCor.port_a2, cor.ports[4]); connect(opeSouCor.port_a1, sou.ports[4]); connect(opeSouCor.port_b2, sou.ports[5]); connect(opeEasCor.port_b1, eas.ports[4]); connect(opeEasCor.port_a2, eas.ports[5]); connect(opeEasCor.port_a1, cor.ports[5]); connect(opeEasCor.port_b2, cor.ports[6]); connect(opeNorCor.port_b1, nor.ports[4]); connect(opeNorCor.port_a2, nor.ports[5]); connect(opeNorCor.port_a1, cor.ports[7]); connect(opeNorCor.port_b2, cor.ports[8]); connect(opeWesCor.port_b1, cor.ports[9]); connect(opeWesCor.port_a2, cor.ports[10]); connect(opeWesCor.port_a1, wes.ports[4]); connect(opeWesCor.port_b2, wes.ports[5]); connect(intGaiFra.y, gai.u); connect(cor.ports[11], senRelPre.port_b); connect(out.weaBus, weaBus); connect(out.ports[1], senRelPre.port_a); connect(senRelPre.p_rel, p_rel); end Floor;

## Buildings.Examples.VAVReheat.ThermalZones.RoomLeakage

Room leakage model

### Information

Room leakage.

Extends from Buildings.BaseClasses.BaseIcon (Base icon).

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
replaceable package Medium | Modelica.Media.Interfaces.Pa... | Medium in the component
Volume | VRoo |  | Room volume [m3]
Real | s |  | Side ratio, s=length of this wall/length of adjacent wall
Angle | azi |  | Surface azimuth (South:0, West:pi/2) [rad]

### Connectors

Type | Name | Description
--- | --- | ---
replaceable package Medium | Medium in the component
FluidPort_b | port_b |
Bus | weaBus | Bus with weather data

### Modelica definition

model RoomLeakage "Room leakage model" extends Buildings.BaseClasses.BaseIcon; replaceable package Medium = Modelica.Media.Interfaces.PartialMedium "Medium in the component"; parameter Modelica.SIunits.Volume VRoo "Room volume"; Buildings.Fluid.FixedResistances.FixedResistanceDpM res( redeclare package Medium = Medium, dp_nominal=50, m_flow_nominal=VRoo*1.2/3600) "Resistance model"; Modelica.Fluid.Interfaces.FluidPort_b port_b(redeclare package Medium = Medium); Fluid.Sources.Outside_CpLowRise amb(redeclare package Medium = Medium, nPorts=1, s=s, azi=azi); BoundaryConditions.WeatherData.Bus weaBus "Bus with weather data"; Fluid.Sensors.MassFlowRate senMasFlo1(redeclare package Medium = Medium, allowFlowReversal=true) "Sensor for mass flow rate"; Modelica.Blocks.Math.Gain ACHInf(k=1/VRoo/1.2*3600, y(unit="1/h")) "Air change per hour due to infiltration"; parameter Real s "Side ratio, s=length of this wall/length of adjacent wall"; parameter Modelica.SIunits.Angle azi "Surface azimuth (South:0, West:pi/2)"; equation connect(res.port_b, port_b); connect(amb.weaBus, weaBus); connect(amb.ports[1], senMasFlo1.port_a); connect(senMasFlo1.port_b, res.port_a); connect(senMasFlo1.m_flow, ACHInf.u); end RoomLeakage;

## Buildings.Examples.VAVReheat.ThermalZones.VAVBranch

Supply branch of a VAV system

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
replaceable package MediumA | Modelica.Media.Interfaces.Pa... | Medium model for air
replaceable package MediumW | Modelica.Media.Interfaces.Pa... | Medium model for water
MassFlowRate | m_flow_nominal |  | Mass flow rate of this thermal zone [kg/s]
Volume | VRoo |  | Room volume [m3]

### Connectors

Type | Name | Description
--- | --- | ---
replaceable package MediumA | Medium model for air
replaceable package MediumW | Medium model for water
FluidPort_a | port_a | Fluid connector a1 (positive design flow direction is from port_a1 to port_b1)
FluidPort_a | port_b | Fluid connector b (positive design flow direction is from port_a1 to port_b1)
ControlBus | controlBus |
output RealOutput | yDam | Signal for VAV damper
input RealInput | TRoo | Measured room temperature [K]

### Modelica definition

model VAVBranch "Supply branch of a VAV system" replaceable package MediumA = Modelica.Media.Interfaces.PartialMedium "Medium model for air"; replaceable package MediumW = Modelica.Media.Interfaces.PartialMedium "Medium model for water"; Buildings.Fluid.Actuators.Dampers.VAVBoxExponential vav( redeclare package Medium = MediumA, m_flow_nominal=m_flow_nominal, A=0.6, use_v_nominal=true, dp_nominal(displayUnit="Pa") = 220 + 20) "VAV box for room"; Buildings.Fluid.HeatExchangers.DryEffectivenessNTU terHea( redeclare package Medium1 = MediumA, redeclare package Medium2 = MediumW, m1_flow_nominal=m_flow_nominal, m2_flow_nominal=m_flow_nominal*1000*(50 - 17)/4200/10, Q_flow_nominal=m_flow_nominal*1006*(50 - 16.7), configuration=Buildings.Fluid.Types.HeatExchangerConfiguration.CounterFlow, dp1_nominal=0, from_dp2=true, dp2_nominal=0, T_a1_nominal=289.85, T_a2_nominal=355.35) "Heat exchanger of terminal box"; Buildings.Fluid.Sources.FixedBoundary sinTer( redeclare package Medium = MediumW, p(displayUnit="Pa") = 3E5, nPorts=1) "Sink for terminal box "; Modelica.Fluid.Interfaces.FluidPort_a port_a(redeclare package Medium = MediumA) "Fluid connector a1 (positive design flow direction is from port_a1 to port_b1)"; Modelica.Fluid.Interfaces.FluidPort_a port_b(redeclare package Medium = MediumA) "Fluid connector b (positive design flow direction is from port_a1 to port_b1)"; parameter Modelica.SIunits.MassFlowRate m_flow_nominal "Mass flow rate of this thermal zone"; parameter Modelica.SIunits.Volume VRoo "Room volume"; Controls.RoomVAV con "Room temperature controller"; Controls.ControlBus controlBus; Buildings.Fluid.Sensors.MassFlowRate senMasFlo(redeclare package Medium = MediumA) "Sensor for mass flow rate"; Modelica.Blocks.Math.Gain fraMasFlo(k=1/m_flow_nominal) "Fraction of mass flow rate, relative to nominal flow"; Buildings.Fluid.Sensors.TemperatureTwoPort TSup( redeclare package Medium = MediumA, m_flow_nominal=m_flow_nominal, initType=Modelica.Blocks.Types.Init.InitialState) "Supply air temperature"; Modelica.Blocks.Interfaces.RealOutput yDam "Signal for VAV damper"; Modelica.Blocks.Math.Gain ACH(k=1/VRoo/1.2*3600) "Air change per hour"; Buildings.Fluid.Actuators.Valves.TwoWayLinear valHea( redeclare package Medium = MediumW, m_flow_nominal=m_flow_nominal*1000*15/4200/10, CvData=Buildings.Fluid.Types.CvTypes.OpPoint, from_dp=true, dpFixed_nominal=6000, dpValve_nominal=6000) "Valve at reaheat coil"; Buildings.Fluid.Sources.FixedBoundary souTer( redeclare package Medium = MediumW, p(displayUnit="Pa") = 3E5 + 12000, nPorts=1, T=323.15) "Source for terminal box "; Modelica.Blocks.Interfaces.RealInput TRoo(unit="K", displayUnit="degC") "Measured room temperature"; equation connect(con.controlBus, controlBus); connect(fraMasFlo.u, senMasFlo.m_flow); connect(TSup.T, con.TSup); connect(con.yDam, vav.y); connect(terHea.port_b1, TSup.port_a); connect(TSup.port_b, vav.port_a); connect(vav.port_b, senMasFlo.port_a); connect(con.yDam, yDam); connect(ACH.u, senMasFlo.m_flow); connect(con.yHea, valHea.y); connect(souTer.ports[1], terHea.port_a2); connect(terHea.port_b2, valHea.port_a); connect(valHea.port_b, sinTer.ports[1]); connect(port_a, terHea.port_a1); connect(senMasFlo.port_b, port_b); connect(con.TRoo, TRoo); end VAVBranch;