Buildings.Templates.Plants.Controls.HeatPumps

Controllers for heat pump plants

Information

This package contains control sequences for heat pump plants.

Package Content

Name	Description
AirToWater	Controller for AWHP plant
Validation	Collection of validation models

Buildings.Templates.Plants.Controls.HeatPumps.AirToWater

Controller for AWHP plant

Buildings.Templates.Plants.Controls.HeatPumps.AirToWater

Information

This block implements the sequence of operation for plants with air-to-water heat pumps. Most parts of the sequence of operation are similar to that described in ASHRAE, 2021 for chiller plants.

The supported plant configurations are enumerated in the table below.

Configuration parameter	Options	Notes
Function	Heating and cooling Heating-only Cooling-only
Heat recovery	Without sidestream heat recovery chiller With sidestream heat recovery chiller	This option is only available for heating and cooling plants. When selected, the plant controller incorporates logic to manage a chiller and its associated dedicated primary CHW and CW pumps. The chiller is considered connected in a sidestream configuration to both the CHW return and the HW return.
Type of distribution	Variable primary-only Constant primary-variable secondary centralized	It is assumed that the HW and the CHW loops have the same type of distribution, as specified by this parameter. Most AWHPs on the market use a reverse cycle for defrosting. This requires maximum primary flow during defrost cycles. Consequently, variable primary plants commonly adopt a high minimum flow setpoint, typically close to the design flow rate, effectively operating akin to constant primary plants but with variable speed pumps controlling the loop differential pressure. While the flow rate directed towards the loads varies, the bypass valve control loop ensures a constant primary flow for a given number of staged units. "Centralized secondary pumps" refers to configurations with a single group of secondary pumps that is typically integrated into the plant. Distributed secondary pumps with multiple secondary loops served by dedicated secondary pumps are currently not supported.
Type of primary pump arrangement	Dedicated Headered	It is assumed that the HW and the CHW loops have the same type of primary pump arrangement, as specified by this parameter.
Separate dedicated primary CHW pumps	False True	This option is only available for heating and cooling plants with dedicated primary pumps. If this option is not selected, each AWHP uses a common dedicated primary pump for HW and CHW – this pump is then denoted as the primary HW pump. Otherwise, each AWHP relies on a separate dedicated HW pump and a separate dedicated CHW pump.
Type of primary HW pumps	Variable speed Constant speed	For constant primary-variable secondary distributions, the variable speed primary pumps are commanded at fixed speeds, determined during the Testing, Adjusting and Balancing phase to provide design AWHP flow in heating and cooling modes. The same intent is achieved with constant speed primary pumps through the use of balancing valves. This parameter is only available for constant primary-variable secondary plants.
Type of primary CHW pumps	Variable speed Constant speed	See the note above on primary HW pumps.

Details

A staging matrix staEqu is required as a parameter. See the documentation of Buildings.Templates.Plants.Controls.StagingRotation.EquipmentEnable for the associated definition and requirements.

Depending on the plant configuration, the term "primary HW pumps" (and the corresponding variables containing *pumHeaWatPri*) refers either to primary HW pumps for plants with separate primary HW and CHW pumps (either headered or dedicated) or to dedicated primary pumps for plants with common primary pumps serving both the HW and CHW loops.

At its current stage of development, this controller contains no logic for handling faulted equipment. It is therefore assumed that any equipment is available at all times.

References

ASHRAE, 2021. Guideline 36-2021, High-Performance Sequences of Operation for HVAC Systems. Atlanta, GA.

Parameters

Type	Name	Default	Description
Plant configuration
Boolean	have_heaWat		Set to true for plants that provide HW
Boolean	have_chiWat		Set to true for plants that provide CHW
Boolean	is_priOnl	false	Set to true for primary-only plant
Boolean	have_hrc_select	false	Set to true for plants with sidestream heat recovery chiller
Boolean	have_valHpInlIso		Set to true for plants with isolation valves at heat pump inlet
Boolean	have_valHpOutIso		Set to true for plants with isolation valves at heat pump outlet
Boolean	have_pumChiWatPriDed_select	false	Set to true for plants with separate dedicated primary CHW pumps
Boolean	have_pumPriHdr		Set to true for headered primary pumps, false for dedicated pumps
Boolean	have_pumHeaWatPriVar_select	true	Set to true for variable speed primary HW pumps, false for constant speed pumps
Boolean	have_pumChiWatPriVar_select	true	Set to true for variable speed primary CHW pumps, false for constant speed pumps
Integer	nHp		Number of heat pumps
Integer	nPumHeaWatPri	nHp	Number of primary HW pumps
Integer	nPumChiWatPri	if have_pumChiWatPri then nH...	Number of primary CHW pumps
Integer	nPumHeaWatSec	nHp	Number of secondary HW pumps
Integer	nPumChiWatSec	nHp	Number of secondary CHW pumps
Sensors
Boolean	have_senVHeaWatPri_select		Set to true for plants with primary HW flow sensor
Boolean	have_senVChiWatPri_select		Set to true for plants with primary CHW flow sensor
Boolean	have_senTHeaWatPriRet_select		Set to true for plants with primary HW return temperature sensor
Boolean	have_senTChiWatPriRet_select		Set to true for plants with primary CHW return temperature sensor
Boolean	have_senTHeaWatSecRet_select	false	Set to true for plants with secondary HW return temperature sensor
Boolean	have_senTChiWatSecRet_select	false	Set to true for plants with secondary CHW return temperature sensor
Boolean	have_senDpHeaWatRemWir	false	Set to true for remote HW differential pressure sensor(s) hardwired to plant or pump controller
Integer	nSenDpHeaWatRem		Number of remote HW differential pressure sensors used for HW pump speed control
Boolean	have_senDpChiWatRemWir	false	Set to true for remote CHW differential pressure sensor(s) hardwired to plant or pump controller
Integer	nSenDpChiWatRem		Number of remote CHW differential pressure sensors used for CHW pump speed control
Information provided by designer
Real	THeaWatSup_nominal		Design HW supply temperature (maximum setpoint) [K]
Real	THeaWatSupSet_min		Minimum value to which the HW supply temperature can be reset [K]
Real	TOutHeaWatLck	294.15	Outdoor air lockout temperature above which the HW loop is prevented from operating [K]
Real	capHeaHp_nominal[nHp]		Design heat pump heating capacity - Each heat pump [W]
Real	VHeaWatHp_flow_nominal[nHp]		Design heat pump HW volume flow rate - Each heat pump [m3/s]
Real	VHeaWatHp_flow_min[nHp]		Minimum heat pump HW volume flow rate - Each heat pump [m3/s]
Real	VHeaWatPri_flow_nominal	sum(VHeaWatHp_flow_nominal)	Primary HW volume flow rate [m3/s]
Real	VHeaWatSec_flow_nominal		Design secondary HW volume flow rate [m3/s]
Real	dpHeaWatRemSet_min	5*6894	Minimum value to which the HW differential pressure can be reset - Remote sensor [Pa]
Real	TChiWatSup_nominal		Design CHW supply temperature (minimum setpoint) [K]
Real	TChiWatSupSet_max		Maximum value to which the CHW supply temperature can be reset [K]
Real	TOutChiWatLck	289.15	Outdoor air lockout temperature below which the CHW loop is prevented from operating [K]
Real	capCooHp_nominal[nHp]		Design heat pump cooling capacity - Each heat pump [W]
Real	VChiWatHp_flow_nominal[nHp]		Design heat pump CHW volume flow rate - Each heat pump [m3/s]
Real	VChiWatHp_flow_min[nHp]		Minimum heat pump CHW volume flow rate - Each heat pump [m3/s]
Real	VChiWatPri_flow_nominal	sum(VChiWatHp_flow_nominal)	Primary CHW volume flow rate [m3/s]
Real	VChiWatSec_flow_nominal		Design secondary CHW volume flow rate [m3/s]
Real	dpChiWatRemSet_min	5*6894	Minimum value to which the CHW differential pressure can be reset - Remote sensor [Pa]
Real	cp_default	4184	Default specific heat capacity used to compute required capacity [J/(kg.K)]
Real	rho_default	996	Default density used to compute required capacity [kg/m3]
Real	TChiWatSupHrc_min		Sidestream HRC – Minimum allowable CHW supply temperature [K]
Real	THeaWatSupHrc_max		Sidestream HRC – Maximum allowable HW supply temperature [K]
Real	COPHeaHrc_nominal		Sidestream HRC – Heating COP at design heating conditions [1]
Real	capCooHrc_min		Sidestream HRC – Minimum cooling capacity below which cycling occurs [W]
Real	capHeaHrc_min		Sidestream HRC – Minimum heating capacity below which cycling occurs [W]
Information provided by testing, adjusting, and balancing contractor
Real	dpHeaWatRemSet_max[nSenDpHeaWatRem]		Maximum HW differential pressure setpoint - Remote sensor [Pa]
Real	yPumHeaWatPriSet		Primary pump speed providing design heat pump flow in heating mode [1]
Real	dpChiWatRemSet_max[nSenDpChiWatRem]		Maximum CHW differential pressure setpoint - Remote sensor [Pa]
Real	yPumChiWatPriSet		Primary pump speed providing design heat pump flow in cooling mode [1]
Plant enable
Boolean	have_inpSch	false	Set to true to provide schedule via software input point
Real	schHea[:, 2]	[0, 1; 24*3600, 1]	Heating mode enable schedule
Real	schCoo[:, 2]	[0, 1; 24*3600, 1]	Cooling mode enable schedule
Equipment staging and rotation
Real	staEqu[:, nHp]		Staging matrix – Equipment required for each stage [1]
Integer	idxEquAlt[nEquAlt]		Indices of lead/lag alternate equipment
Real	plrSta	0.9	Staging part load ratio [1]
Advanced
Plant enable
Integer	nReqIgnHeaWat	0	Number of ignored HW plant requests
Integer	nReqIgnChiWat	0	Number of ignored CHW plant requests
Real	dTOutLck	0.5	Hysteresis for outdoor air lockout temperature [K]
Real	dtRunEna	15*60	Minimum runtime of enable and disable states [s]
Real	dtReqDis	3*60	Runtime with low number of request before disabling [s]
Equipment staging and rotation
Real	dTHea	2.5	Delta-T triggering stage up command for heating appplications (>0) [K]
Real	dTCoo	1	Delta-T triggering stage up command for cooling applications (>0) [K]
Real	dtVal	90	Nominal valve timing [s]
Real	dtRunSta	900	Minimum runtime of each stage [s]
Real	dtOff	900	Off time required before equipment is deemed available again [s]
Real	dtOffHp	180	Heat pump internal shutdown cycle timing (before closing isolation valves or disabling primary pumps) [s]
Real	dtPri	900	Runtime with high primary-setpoint Delta-T before staging up [s]
Real	dtSec	600	Runtime with high secondary-primary and secondary-setpoint Delta-T before staging up [s]
Pump staging
Real	dtRunPumSta	600	Runtime before triggering stage change command based on efficiency condition [s]
Real	dtRunFaiSafPumSta	300	Runtime before triggering stage change command based on failsafe condition [s]
Real	dtRunFaiSafLowYPumSta	dtRunPumSta	Runtime before triggering stage change command based on low pump speed failsafe condition [s]
Real	dVOffUpPumSta	0.03	Stage up flow point offset [1]
Real	dVOffDowPumSta	dVOffUpPumSta	Stage down flow point offset [1]
Real	dpOffPumSta	1E4	Stage change ∆p point offset (>0) [Pa]
Real	yUpPumSta	0.99	Stage up pump speed point [1]
Real	yDowPumSta	0.4	Stage down pump speed point [1]
Plant reset
Real	dtHol	900	Minimum hold time during stage change [s]
Real	resDpHeaWat_max	0.5	Upper limit of plant reset interval for HW differential pressure reset [1]
Real	resTHeaWatSup_min	resDpHeaWat_max	Lower limit of plant reset interval for HW supply temperature reset [1]
Real	resDpChiWat_max	0.5	Upper limit of plant reset interval for CHW differential pressure reset [1]
Real	resTChiWatSup_min	resDpChiWat_max	Lower limit of plant reset interval for CHW supply temperature reset [1]
Real	res_init	1	Initial reset value [1]
Real	res_min	0	Minimum reset value [1]
Real	res_max	1	Maximum reset value [1]
Real	dtDel	900	Delay time before the reset begins [s]
Real	dtResHeaWat	300	Time step for HW plant reset [s]
Integer	nReqResIgnHeaWat	2	Number of ignored requests for HW plant reset
Real	triHeaWat	-0.02	Trim amount for HW plant reset [1]
Real	rspHeaWat	0.03	Respond amount for HW plant reset [1]
Real	rspHeaWat_max	0.07	Maximum response per time interval for HW plant reset [1]
Real	dtResChiWat	300	Time step for CHW plant reset [s]
Integer	nReqResIgnChiWat	2	Number of ignored requests for CHW plant reset
Real	triChiWat	-0.02	Trim amount for CHW plant reset [1]
Real	rspChiWat	0.03	Respond amount for CHW plant reset [1]
Real	rspChiWat_max	0.07	Maximum response per time interval for CHW plant reset [1]
Pump control
Real	yPumHeaWatPri_min	0.1	Minimum primary HW pump speed [1]
Real	yPumChiWatPri_min	0.1	Minimum primary CHW pump speed [1]
Real	yPumHeaWatSec_min	0.1	Minimum secondary HW pump speed [1]
Real	yPumChiWatSec_min	0.1	Minimum secondary CHW pump speed [1]
Loop differential pressure
Real	kCtlDpHeaWat	1	Gain of controller for HW loop ∆p control
Real	TiCtlDpHeaWat	60	Time constant of integrator block for HW loop ∆p control [s]
Real	kCtlDpChiWat	1	Gain of controller for CHW loop ∆p control
Real	TiCtlDpChiWat	60	Time constant of integrator block for CHW loop ∆p control [s]
Minimum flow control
Real	kValMinByp	1	Gain of controller
Time	TiValMinByp	60	Time constant of integrator block [s]
Sidestream HRC
Boolean	have_reqFloHrc	false	Set to true if HRC provides flow request point via network interface
Real	dtLoaHrc	600	Runtime with sufficient load before enabling [s]
Real	dtTem1Hrc	180	Runtime with first temperature threshold exceeded before disabling [s]
Real	dtTem2Hrc	60	Runtime with second temperature threshold exceeded before disabling [s]

Connectors

Type	Name	Description
input IntegerInput	nReqPlaHeaWat	Number of HW plant requests
input RealInput	TOut	Outdoor air temperature [K]
input BooleanInput	u1SchHea	Heating mode enable via schedule
input IntegerInput	nReqPlaChiWat	Number of CHW plant requests
input BooleanInput	u1SchCoo	Cooling mode enable via schedule
input IntegerInput	nReqResHeaWat	Sum of HW reset requests of all heating loads served
input IntegerInput	nReqResChiWat	Sum of CHW reset requests of all heating loads served
input BooleanInput	u1PumHeaWatPri_actual[nPumHeaWatPri]	Primary HW pump status
input BooleanInput	u1PumChiWatPri_actual[nPumChiWatPri]	Primary CHW pump status
input BooleanInput	u1PumHeaWatSec_actual[nPumHeaWatSec]	Secondary HW pump status
input BooleanInput	u1PumChiWatSec_actual[nPumChiWatSec]	Secondary CHW pump status
input RealInput	THeaWatPriRet	Primary HW return temperature [K]
input RealInput	VHeaWatPri_flow	Primary HW volume flow rate [m3/s]
input RealInput	dpHeaWatLoc	Local HW differential pressure [Pa]
input RealInput	dpHeaWatLocSet[nSenDpHeaWatRem]	Local HW differential pressure setpoint output from each of the remote loops [Pa]
input RealInput	dpHeaWatRem[nSenDpHeaWatRem]	Remote HW differential pressure [Pa]
input RealInput	dpChiWatLoc	Local CHW differential pressure [Pa]
input RealInput	dpChiWatLocSet[nSenDpChiWatRem]	Local CHW differential pressure setpoint output from each of the remote loops [Pa]
input RealInput	dpChiWatRem[nSenDpChiWatRem]	Remote CHW differential pressure [Pa]
output BooleanOutput	y1ValHeaWatHpInlIso[nHp]	Heat pump inlet HW inlet isolation valve command
output BooleanOutput	y1ValHeaWatHpOutIso[nHp]	Heat pump outlet HW isolation valve command
output BooleanOutput	y1ValChiWatHpInlIso[nHp]	Heat pump inlet CHW isolation valve command
output BooleanOutput	y1ValChiWatHpOutIso[nHp]	Heat pump outlet CHW isolation valve command
output BooleanOutput	y1PumHeaWatPri[nPumHeaWatPri]	Primary HW pump start command
output BooleanOutput	y1PumChiWatPri[nPumChiWatPri]	Primary CHW pump start command
output BooleanOutput	y1PumHeaWatSec[nPumHeaWatSec]	Secondary HW pump start command
output BooleanOutput	y1PumChiWatSec[nPumChiWatSec]	Secondary CHW pump start command
output BooleanOutput	y1Hp[nHp]	Heat pump enable command
output BooleanOutput	y1HeaHp[nHp]	Heat pump heating/cooling mode command: true=heating, false=cooling
output RealOutput	dpHeaWatRemSet[nSenDpHeaWatRem]	HW differential pressure setpoint [Pa]
output RealOutput	dpChiWatRemSet[nSenDpChiWatRem]	CHW differential pressure setpoint [Pa]
output RealOutput	yPumHeaWatPriHdr	Primary headered HW pump speed command [1]
output RealOutput	yPumChiWatPriHdr	Primary headered CHW pump speed command [1]
output RealOutput	yPumHeaWatSec	Primary HW pump speed command [1]
output RealOutput	yPumChiWatSec	Primary CHW pump speed command [1]
output RealOutput	TChiWatSupSet	CHW supply temperature setpoint [K]
output RealOutput	THeaWatSupSet	HW supply temperature setpoint [K]
input RealInput	TChiWatPriRet	Primary CHW return temperature [K]
input RealInput	VChiWatPri_flow	Primary CHW volume flow rate [m3/s]
input BooleanInput	u1Hp_actual[nHp]	Heat pump status
output RealOutput	yPumHeaWatPriDed[nPumHeaWatPri]	Primary dedicated HW pump speed command [1]
output RealOutput	yPumChiWatPriDed[nPumChiWatPri]	Primary dedicated CHW pump speed command [1]
input RealInput	THeaWatSecRet	Secondary HW return temperature [K]
input RealInput	VHeaWatSec_flow	Secondary HW volume flow rate [m3/s]
input RealInput	TChiWatSecRet	Secondary CHW return temperature [K]
input RealInput	VChiWatSec_flow	Secondary CHW volume flow rate [m3/s]
output RealOutput	TSupSet[nHp]	Active HP supply temperature setpoint [K]
input RealInput	THeaWatPriSup	Primary HW supply temperature [K]
input RealInput	TChiWatPriSup	Primary CHW return temperature [K]
input RealInput	THeaWatSecSup	Secondary HW supply temperature [K]
input RealInput	TChiWatSecSup	Secondary CHW return temperature [K]
output BooleanOutput	y1Hrc	Sidestream HRC enable command
output BooleanOutput	y1CooHrc	Sidestream HRC mode command: true for cooling, false for heating
output BooleanOutput	y1PumChiWatHrc	Sidestream HRC CHW pump enable command
output BooleanOutput	y1PumHeaWatHrc	Sidestream HRC HW pump enable command
output RealOutput	TSupSetHrc	Sidestream HRC active supply temperature setpoint [K]
input RealInput	TChiWatRetUpsHrc	CHW return temperature upstream of HRC [K]
input RealInput	THeaWatRetUpsHrc	HW return temperature upstream of HRC [K]
input BooleanInput	u1Hrc_actual	HRC status
input BooleanInput	u1ReqFloChiWat	CHW flow request from HRC
input BooleanInput	u1ReqFloConWat	CW flow request from HRC
output RealOutput	yValHeaWatMinByp	HW minimum flow bypass valve command [1]
output RealOutput	yValChiWatMinByp	CHW minimum flow bypass valve command [1]

Modelica definition

block AirToWater "Controller for AWHP plant" parameter Boolean have_heaWat "Set to true for plants that provide HW"; parameter Boolean have_chiWat "Set to true for plants that provide CHW"; parameter Boolean is_priOnl=false "Set to true for primary-only plant"; parameter Boolean have_hrc_select(start=false)=false "Set to true for plants with sidestream heat recovery chiller"; final parameter Boolean have_hrc=if have_heaWat and have_chiWat then have_hrc_select else false "Set to true for plants with sidestream heat recovery chiller"; parameter Boolean have_valHpInlIso "Set to true for plants with isolation valves at heat pump inlet"; parameter Boolean have_valHpOutIso "Set to true for plants with isolation valves at heat pump outlet"; final parameter Boolean have_pumHeaWatPri=have_heaWat "Set to true for plants with primary HW pumps"; parameter Boolean have_pumChiWatPriDed_select(start=false)=false "Set to true for plants with separate dedicated primary CHW pumps"; final parameter Boolean have_pumChiWatPriDed= if have_chiWat and not have_pumPriHdr then have_pumChiWatPriDed_select else false "Set to true for plants with separate dedicated primary CHW pumps"; final parameter Boolean have_pumChiWatPri= have_chiWat and (have_pumPriHdr or have_pumChiWatPriDed) "Set to true for plants with separate primary CHW pumps"; parameter Boolean have_pumPriHdr "Set to true for headered primary pumps, false for dedicated pumps"; parameter Boolean have_pumHeaWatPriVar_select(start=true)=true "Set to true for variable speed primary HW pumps, false for constant speed pumps"; parameter Boolean have_pumChiWatPriVar_select(start=true)=true "Set to true for variable speed primary CHW pumps, false for constant speed pumps"; final parameter Boolean have_pumHeaWatPriVar= have_pumHeaWatPri and (is_priOnl or have_pumHeaWatPriVar_select) "Set to true for variable speed primary HW pumps, false for constant speed pumps"; final parameter Boolean have_pumChiWatPriVar= have_pumChiWatPri and (is_priOnl or have_pumChiWatPriVar_select) "Set to true for variable speed primary CHW pumps, false for constant speed pumps"; final parameter Boolean have_pumPriCtlDp=is_priOnl "Set to true for primary variable speed pumps using ∆p pump speed control"; final parameter Boolean have_pumHeaWatSec= have_heaWat and not is_priOnl "Set to true for plants with secondary HW pumps"; final parameter Boolean have_pumChiWatSec= have_chiWat and not is_priOnl "Set to true for plants with secondary CHW pumps"; // Only headered arrangements are supported for secondary pumps. final parameter Boolean have_pumSecHdr=true "Set to true for headered secondary pumps, false for dedicated pumps"; // Only ∆p controlled variable speed pumps are supported for secondary pumps. final parameter Boolean have_pumSecCtlDp=have_pumHeaWatSec or have_pumChiWatSec "Set to true for secondary variable speed pumps using ∆p pump speed control"; parameter Boolean have_senVHeaWatPri_select(start=false) "Set to true for plants with primary HW flow sensor"; final parameter Boolean have_senVHeaWatPri=have_heaWat and (if have_hrc or not have_senVHeaWatSec then true else have_senVHeaWatPri_select) "Set to true for plants with primary HW flow sensor"; // Secondary flow sensor required for secondary HW pump staging. final parameter Boolean have_senVHeaWatSec=have_pumHeaWatSec "Set to true for plants with secondary HW flow sensor"; parameter Boolean have_senVChiWatPri_select(start=false) "Set to true for plants with primary CHW flow sensor"; final parameter Boolean have_senVChiWatPri=have_chiWat and (if have_hrc or not have_senVChiWatSec then true else have_senVChiWatPri_select) "Set to true for plants with primary CHW flow sensor"; // Secondary flow sensor required for secondary CHW pump staging. final parameter Boolean have_senVChiWatSec(start=false)=have_pumChiWatSec "Set to true for plants with secondary CHW flow sensor"; parameter Boolean have_senTHeaWatPriRet_select(start=false) "Set to true for plants with primary HW return temperature sensor"; final parameter Boolean have_senTHeaWatPriRet=have_heaWat and (if have_hrc or not have_senTHeaWatSecRet then true else have_senTHeaWatPriRet_select) "Set to true for plants with primary HW return temperature sensor"; parameter Boolean have_senTChiWatPriRet_select(start=false) "Set to true for plants with primary CHW return temperature sensor"; final parameter Boolean have_senTChiWatPriRet=have_chiWat and (if have_hrc or not have_senTChiWatSecRet then true else have_senTChiWatPriRet_select) "Set to true for plants with primary CHW return temperature sensor"; // For primary-secondary plants, SHWST sensor is required for plant staging. final parameter Boolean have_senTHeaWatSecSup=have_pumHeaWatSec "Set to true for plants with secondary HW supply temperature sensor"; // For primary-secondary plants, SCHWST sensor is required for plant staging. final parameter Boolean have_senTChiWatSecSup=have_pumChiWatSec "Set to true for plants with secondary CHW supply temperature sensor"; // Following return temperature sensors are: // - optional for primary-secondary plants without HRC, // - required for plants with HRC: downstream of HRC. parameter Boolean have_senTHeaWatSecRet_select(start=false)=false "Set to true for plants with secondary HW return temperature sensor"; parameter Boolean have_senTChiWatSecRet_select(start=false)=false "Set to true for plants with secondary CHW return temperature sensor"; final parameter Boolean have_senTHeaWatSecRet= if have_hrc then true elseif not have_pumHeaWatSec then false else have_senTHeaWatSecRet_select "Set to true for plants with secondary HW return temperature sensor"; final parameter Boolean have_senTChiWatSecRet(start=false)= if have_hrc then true elseif not have_pumChiWatSec then false else have_senTChiWatSecRet_select "Set to true for plants with secondary CHW return temperature sensor"; parameter Integer nHp(min=1) "Number of heat pumps"; parameter Integer nPumHeaWatPri( min=if have_pumHeaWatPri then 1 else 0, start=0)=nHp "Number of primary HW pumps"; parameter Integer nPumChiWatPri( min=if have_pumChiWatPri then 1 else 0, start=if have_pumChiWatPri then nHp else 0)=if have_pumChiWatPri then nHp else 0 "Number of primary CHW pumps"; parameter Integer nPumHeaWatSec( min=if have_pumHeaWatSec then 1 else 0, start=0)=nHp "Number of secondary HW pumps"; parameter Integer nPumChiWatSec( min=if have_pumChiWatSec then 1 else 0, start=0)=nHp "Number of secondary CHW pumps"; parameter Boolean have_senDpHeaWatRemWir(start=false)=false "Set to true for remote HW differential pressure sensor(s) hardwired to plant or pump controller"; parameter Integer nSenDpHeaWatRem( final min=if have_heaWat then 1 else 0, start=0) "Number of remote HW differential pressure sensors used for HW pump speed control"; parameter Boolean have_senDpChiWatRemWir(start=false)=false "Set to true for remote CHW differential pressure sensor(s) hardwired to plant or pump controller"; parameter Integer nSenDpChiWatRem( final min=if have_chiWat then 1 else 0, start=0) "Number of remote CHW differential pressure sensors used for CHW pump speed control"; parameter Real THeaWatSup_nominal( min=273.15, start=50 + 273.15, unit="K", displayUnit="degC") "Design HW supply temperature (maximum setpoint)"; parameter Real THeaWatSupSet_min( min=273.15, start=25 + 273.15, unit="K", displayUnit="degC") "Minimum value to which the HW supply temperature can be reset"; parameter Real TOutHeaWatLck( min=273.15, start=21 + 273.15, unit="K", displayUnit="degC")=294.15 "Outdoor air lockout temperature above which the HW loop is prevented from operating"; parameter Real capHeaHp_nominal[nHp]( min=fill(0, nHp), start=fill(1, nHp), unit=fill("W", nHp)) "Design heat pump heating capacity - Each heat pump"; parameter Real VHeaWatHp_flow_nominal[nHp]( final min=fill(0, nHp), start=fill(1E-6, nHp), final unit=fill("m3/s", nHp)) "Design heat pump HW volume flow rate - Each heat pump"; parameter Real VHeaWatHp_flow_min[nHp]( final min=fill(0, nHp), start=fill(0, nHp), final unit=fill("m3/s", nHp)) "Minimum heat pump HW volume flow rate - Each heat pump"; parameter Real VHeaWatPri_flow_nominal( min=0, start=sum(VHeaWatHp_flow_nominal), unit="m3/s")=sum(VHeaWatHp_flow_nominal) "Primary HW volume flow rate"; parameter Real VHeaWatSec_flow_nominal( min=0, start=1E-6, unit="m3/s") "Design secondary HW volume flow rate"; parameter Real dpHeaWatRemSet_max[nSenDpHeaWatRem]( min=fill(0, nSenDpHeaWatRem), start=fill(5E4, nSenDpHeaWatRem), unit=fill("Pa", nSenDpHeaWatRem)) "Maximum HW differential pressure setpoint - Remote sensor"; parameter Real dpHeaWatRemSet_min( min=0, start=5*6894, unit="Pa")=5*6894 "Minimum value to which the HW differential pressure can be reset - Remote sensor"; parameter Real yPumHeaWatPriSet( max=2, min=0, start=1, unit="1") "Primary pump speed providing design heat pump flow in heating mode"; parameter Real TChiWatSup_nominal( min=273.15, start=7 + 273.15, unit="K", displayUnit="degC") "Design CHW supply temperature (minimum setpoint)"; parameter Real TChiWatSupSet_max( min=273.15, start=15 + 273.15, unit="K", displayUnit="degC") "Maximum value to which the CHW supply temperature can be reset"; parameter Real TOutChiWatLck( min=273.15, start=16 + 273.15, unit="K", displayUnit="degC")=289.15 "Outdoor air lockout temperature below which the CHW loop is prevented from operating"; parameter Real capCooHp_nominal[nHp]( min=fill(0, nHp), start=fill(1, nHp), unit=fill("W", nHp)) "Design heat pump cooling capacity - Each heat pump"; parameter Real VChiWatHp_flow_nominal[nHp]( final min=fill(0, nHp), start=fill(1E-6, nHp), final unit=fill("m3/s", nHp)) "Design heat pump CHW volume flow rate - Each heat pump"; parameter Real VChiWatHp_flow_min[nHp]( final min=fill(0, nHp), start=fill(0, nHp), final unit=fill("m3/s", nHp)) "Minimum heat pump CHW volume flow rate - Each heat pump"; parameter Real VChiWatPri_flow_nominal( final min=0, start=sum(VChiWatHp_flow_nominal), final unit="m3/s")=sum(VChiWatHp_flow_nominal) "Primary CHW volume flow rate"; parameter Real VChiWatSec_flow_nominal( min=0, start=1E-6, unit="m3/s") "Design secondary CHW volume flow rate"; parameter Real dpChiWatRemSet_max[nSenDpChiWatRem]( min=fill(0, nSenDpChiWatRem), start=fill(5E4, nSenDpChiWatRem), unit=fill("Pa", nSenDpChiWatRem)) "Maximum CHW differential pressure setpoint - Remote sensor"; parameter Real dpChiWatRemSet_min( min=0, start=5*6894, unit="Pa")=5*6894 "Minimum value to which the CHW differential pressure can be reset - Remote sensor"; parameter Real yPumChiWatPriSet( max=2, min=0, start=1, unit="1") "Primary pump speed providing design heat pump flow in cooling mode"; parameter Real cp_default( min=0, unit="J/(kg.K)")=4184 "Default specific heat capacity used to compute required capacity"; parameter Real rho_default( min=0, unit="kg/m3")=996 "Default density used to compute required capacity"; parameter Boolean have_inpSch=false "Set to true to provide schedule via software input point"; parameter Real schHea[:, 2](start=[0,1; 24*3600,1])=[0,1; 24*3600,1] "Heating mode enable schedule"; parameter Real schCoo[:, 2](start=[0,1; 24*3600,1])=[0,1; 24*3600,1] "Cooling mode enable schedule"; parameter Integer nReqIgnHeaWat(min=0)=0 "Number of ignored HW plant requests"; parameter Integer nReqIgnChiWat(min=0)=0 "Number of ignored CHW plant requests"; parameter Real dTOutLck( min=0, unit="K")=0.5 "Hysteresis for outdoor air lockout temperature"; parameter Real dtRunEna( min=0, unit="s")=15*60 "Minimum runtime of enable and disable states"; parameter Real dtReqDis( min=0, unit="s")=3*60 "Runtime with low number of request before disabling"; parameter Real staEqu[:, nHp]( each final max=1, each final min=0, each final unit="1") "Staging matrix – Equipment required for each stage"; final parameter Integer nSta( final min=1)=size(staEqu, 1) "Number of stages"; final parameter Integer nEquAlt( final min=0)=if nHp==1 then 1 else max({sum({(if staEqu[i, j] > 0 and staEqu[i, j] < 1 then 1 else 0) for j in 1:nHp}) for i in 1:nSta}) "Number of lead/lag alternate equipment"; parameter Integer idxEquAlt[nEquAlt](final min=fill(1, nEquAlt)) "Indices of lead/lag alternate equipment"; parameter Real plrSta( max=1, min=0, start=0.9, unit="1")=0.9 "Staging part load ratio"; parameter Real dTHea( min=0, unit="K")=2.5 "Delta-T triggering stage up command for heating appplications (>0)"; parameter Real dTCoo( min=0, unit="K")=1 "Delta-T triggering stage up command for cooling applications (>0)"; parameter Real dtVal( min=0, start=90, unit="s")=90 "Nominal valve timing"; parameter Real dtRunSta( min=0, unit="s", displayUnit="min")=900 "Minimum runtime of each stage"; parameter Real dtOff( min=0, unit="s")=900 "Off time required before equipment is deemed available again"; parameter Real dtOffHp( min=0, unit="s")=180 "Heat pump internal shutdown cycle timing (before closing isolation valves or disabling primary pumps)"; parameter Real dtPri( min=0, unit="s")=900 "Runtime with high primary-setpoint Delta-T before staging up"; parameter Real dtSec( min=0, start=600, unit="s")=600 "Runtime with high secondary-primary and secondary-setpoint Delta-T before staging up"; parameter Real dtRunPumSta( min=0, start=600, unit="s")=600 "Runtime before triggering stage change command based on efficiency condition"; parameter Real dtRunFaiSafPumSta( min=0, start=300, unit="s")=300 "Runtime before triggering stage change command based on failsafe condition"; parameter Real dtRunFaiSafLowYPumSta( min=0, start=600, unit="s")=dtRunPumSta "Runtime before triggering stage change command based on low pump speed failsafe condition"; parameter Real dVOffUpPumSta( max=1, min=0, start=0.03, unit="1")=0.03 "Stage up flow point offset"; parameter Real dVOffDowPumSta( max=1, min=0, start=0.03, unit="1")=dVOffUpPumSta "Stage down flow point offset"; parameter Real dpOffPumSta( min=0, start=1E4, unit="Pa")=1E4 "Stage change ∆p point offset (>0)"; parameter Real yUpPumSta( min=0, start=0.99, unit="1")=0.99 "Stage up pump speed point"; parameter Real yDowPumSta( min=0, start=0.4, unit="1")=0.4 "Stage down pump speed point"; parameter Real dtHol( min=0, unit="s")=900 "Minimum hold time during stage change"; parameter Real resDpHeaWat_max( max=1, min=0, unit="1")=0.5 "Upper limit of plant reset interval for HW differential pressure reset"; parameter Real resTHeaWatSup_min( max=1, min=0, unit="1")=resDpHeaWat_max "Lower limit of plant reset interval for HW supply temperature reset"; parameter Real resDpChiWat_max( max=1, min=0, unit="1")=0.5 "Upper limit of plant reset interval for CHW differential pressure reset"; parameter Real resTChiWatSup_min( max=1, min=0, unit="1")=resDpChiWat_max "Lower limit of plant reset interval for CHW supply temperature reset"; parameter Real res_init( max=1, min=0, unit="1")=1 "Initial reset value"; parameter Real res_min( max=1, min=0, unit="1")=0 "Minimum reset value"; parameter Real res_max( max=1, min=0, unit="1")=1 "Maximum reset value"; parameter Real dtDel( min=100*1E-15, unit="s")=900 "Delay time before the reset begins"; parameter Real dtResHeaWat( min=1E-3, unit="s")=300 "Time step for HW plant reset"; parameter Integer nReqResIgnHeaWat(min=0)=2 "Number of ignored requests for HW plant reset"; parameter Real triHeaWat( max=0, unit="1")=-0.02 "Trim amount for HW plant reset"; parameter Real rspHeaWat( min=0, unit="1")=0.03 "Respond amount for HW plant reset"; parameter Real rspHeaWat_max( min=0, unit="1")=0.07 "Maximum response per time interval for HW plant reset"; parameter Real dtResChiWat( min=1E-3, unit="s")=300 "Time step for CHW plant reset"; parameter Integer nReqResIgnChiWat(min=0)=2 "Number of ignored requests for CHW plant reset"; parameter Real triChiWat( max=0, unit="1")=-0.02 "Trim amount for CHW plant reset"; parameter Real rspChiWat( min=0, unit="1")=0.03 "Respond amount for CHW plant reset"; parameter Real rspChiWat_max( min=0, unit="1")=0.07 "Maximum response per time interval for CHW plant reset"; parameter Real yPumHeaWatPri_min( max=1, min=0, start=0.1, unit="1")=0.1 "Minimum primary HW pump speed"; parameter Real kCtlDpHeaWat( min=100*Buildings.Controls.OBC.CDL.Constants.eps, start=1)=1 "Gain of controller for HW loop ∆p control"; parameter Real TiCtlDpHeaWat( min=100*Buildings.Controls.OBC.CDL.Constants.eps, start=60, unit="s")=60 "Time constant of integrator block for HW loop ∆p control"; parameter Real yPumChiWatPri_min( max=1, min=0, start=0.1, unit="1")=0.1 "Minimum primary CHW pump speed"; parameter Real kCtlDpChiWat( min=100*Buildings.Controls.OBC.CDL.Constants.eps, start=1)=1 "Gain of controller for CHW loop ∆p control"; parameter Real TiCtlDpChiWat( min=100*Buildings.Controls.OBC.CDL.Constants.eps, start=60, unit="s")=60 "Time constant of integrator block for CHW loop ∆p control"; parameter Real yPumHeaWatSec_min( max=1, min=0, start=0.1, unit="1")=0.1 "Minimum secondary HW pump speed"; parameter Real yPumChiWatSec_min( max=1, min=0, start=0.1, unit="1")=0.1 "Minimum secondary CHW pump speed"; parameter Real kValMinByp( min=0, start=1)=1 "Gain of controller"; parameter Modelica.Units.SI.Time TiValMinByp( min=Buildings.Controls.OBC.CDL.Constants.small, start=0.5)=60 "Time constant of integrator block"; // Sidestream HRC parameters parameter Boolean have_reqFloHrc(start=false)=false "Set to true if HRC provides flow request point via network interface"; parameter Real TChiWatSupHrc_min( min=273.15, start=4 + 273.15, unit="K", displayUnit="degC") "Sidestream HRC – Minimum allowable CHW supply temperature"; parameter Real THeaWatSupHrc_max( min=273.15, start=60 + 273.15, unit="K", displayUnit="degC") "Sidestream HRC – Maximum allowable HW supply temperature"; parameter Real COPHeaHrc_nominal( min=1.1, start=2.8, unit="1") "Sidestream HRC – Heating COP at design heating conditions"; parameter Real capCooHrc_min( min=0, start=0, unit="W") "Sidestream HRC – Minimum cooling capacity below which cycling occurs"; parameter Real capHeaHrc_min( min=0, start=0, unit="W") "Sidestream HRC – Minimum heating capacity below which cycling occurs"; parameter Real dtLoaHrc( min=0, start=600, unit="s")=600 "Runtime with sufficient load before enabling"; parameter Real dtTem1Hrc( min=0, start=180, unit="s")=180 "Runtime with first temperature threshold exceeded before disabling"; parameter Real dtTem2Hrc( min=0, start=60, unit="s")=60 "Runtime with second temperature threshold exceeded before disabling"; Buildings.Controls.OBC.CDL.Logical.Sources.Constant u1AvaHp[nHp](each k=true) "Heat pump available signal – Block does not handle faulted equipment yet"; Buildings.Controls.OBC.CDL.Interfaces.IntegerInput nReqPlaHeaWat if have_heaWat "Number of HW plant requests"; Buildings.Controls.OBC.CDL.Interfaces.RealInput TOut( final unit="K", final quantity="ThermodynamicTemperature", displayUnit="degC") "Outdoor air temperature"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1SchHea if have_heaWat and have_inpSch "Heating mode enable via schedule"; Buildings.Controls.OBC.CDL.Interfaces.IntegerInput nReqPlaChiWat if have_chiWat "Number of CHW plant requests"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1SchCoo if have_chiWat and have_inpSch "Cooling mode enable via schedule"; Buildings.Controls.OBC.CDL.Interfaces.IntegerInput nReqResHeaWat if have_heaWat "Sum of HW reset requests of all heating loads served"; Buildings.Controls.OBC.CDL.Interfaces.IntegerInput nReqResChiWat if have_chiWat "Sum of CHW reset requests of all heating loads served"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1PumHeaWatPri_actual[nPumHeaWatPri] if have_pumHeaWatPri "Primary HW pump status"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1PumChiWatPri_actual[nPumChiWatPri] if have_pumChiWatPri "Primary CHW pump status"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1PumHeaWatSec_actual[nPumHeaWatSec] if have_pumHeaWatSec "Secondary HW pump status"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1PumChiWatSec_actual[nPumChiWatSec] if have_pumChiWatSec "Secondary CHW pump status"; Buildings.Controls.OBC.CDL.Interfaces.RealInput THeaWatPriRet( final unit="K", displayUnit="degC") if have_heaWat and have_senTHeaWatPriRet "Primary HW return temperature"; Buildings.Controls.OBC.CDL.Interfaces.RealInput VHeaWatPri_flow( final unit="m3/s") if have_heaWat and have_senVHeaWatPri "Primary HW volume flow rate"; Buildings.Controls.OBC.CDL.Interfaces.RealInput dpHeaWatLoc( final unit="Pa") if have_heaWat and not have_senDpHeaWatRemWir "Local HW differential pressure"; Buildings.Controls.OBC.CDL.Interfaces.RealInput dpHeaWatLocSet[nSenDpHeaWatRem]( each final unit="Pa") if have_heaWat and not have_senDpHeaWatRemWir "Local HW differential pressure setpoint output from each of the remote loops"; Buildings.Controls.OBC.CDL.Interfaces.RealInput dpHeaWatRem[nSenDpHeaWatRem]( each final unit="Pa") if have_heaWat and have_senDpHeaWatRemWir "Remote HW differential pressure"; Buildings.Controls.OBC.CDL.Interfaces.RealInput dpChiWatLoc( final unit="Pa") if have_chiWat and not have_senDpChiWatRemWir "Local CHW differential pressure"; Buildings.Controls.OBC.CDL.Interfaces.RealInput dpChiWatLocSet[nSenDpChiWatRem]( each final unit="Pa") if have_chiWat and not have_senDpChiWatRemWir "Local CHW differential pressure setpoint output from each of the remote loops"; Buildings.Controls.OBC.CDL.Interfaces.RealInput dpChiWatRem[nSenDpChiWatRem]( each final unit="Pa") if have_chiWat and have_senDpChiWatRemWir "Remote CHW differential pressure"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1ValHeaWatHpInlIso[nHp] if have_heaWat and have_valHpInlIso "Heat pump inlet HW inlet isolation valve command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1ValHeaWatHpOutIso[nHp] if have_heaWat and have_valHpOutIso "Heat pump outlet HW isolation valve command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1ValChiWatHpInlIso[nHp] if have_chiWat and have_valHpInlIso "Heat pump inlet CHW isolation valve command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1ValChiWatHpOutIso[nHp] if have_chiWat and have_valHpOutIso "Heat pump outlet CHW isolation valve command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1PumHeaWatPri[nPumHeaWatPri] if have_pumHeaWatPri "Primary HW pump start command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1PumChiWatPri[nPumChiWatPri] if have_pumChiWatPri and have_chiWat "Primary CHW pump start command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1PumHeaWatSec[nPumHeaWatSec] if have_pumHeaWatSec "Secondary HW pump start command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1PumChiWatSec[nPumChiWatSec] if have_pumChiWatSec "Secondary CHW pump start command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1Hp[nHp] "Heat pump enable command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1HeaHp[nHp] if have_heaWat and have_chiWat "Heat pump heating/cooling mode command: true=heating, false=cooling"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput dpHeaWatRemSet[nSenDpHeaWatRem]( each final min=0, each final unit="Pa") if have_heaWat "HW differential pressure setpoint"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput dpChiWatRemSet[nSenDpChiWatRem]( each final min=0, each final unit="Pa") if have_chiWat "CHW differential pressure setpoint"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yPumHeaWatPriHdr( final unit="1") if have_pumHeaWatPriVar and have_pumPriHdr "Primary headered HW pump speed command"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yPumChiWatPriHdr( final unit="1") if have_pumChiWatPriVar and have_pumPriHdr "Primary headered CHW pump speed command"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yPumHeaWatSec( final unit="1") if have_pumHeaWatSec "Primary HW pump speed command"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yPumChiWatSec( final unit="1") if have_pumChiWatSec "Primary CHW pump speed command"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput TChiWatSupSet( final unit="K", displayUnit="degC") if have_chiWat "CHW supply temperature setpoint"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput THeaWatSupSet( final unit="K", displayUnit="degC") if have_heaWat "HW supply temperature setpoint"; Buildings.Controls.OBC.CDL.Interfaces.RealInput TChiWatPriRet( final unit="K", displayUnit="degC") if have_chiWat and have_senTChiWatPriRet "Primary CHW return temperature"; Buildings.Controls.OBC.CDL.Interfaces.RealInput VChiWatPri_flow( final unit="m3/s") if have_chiWat and have_senVChiWatPri "Primary CHW volume flow rate"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1Hp_actual[nHp] "Heat pump status"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yPumHeaWatPriDed[nPumHeaWatPri]( each final unit="1") if have_pumHeaWatPriVar and not have_pumPriHdr "Primary dedicated HW pump speed command"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yPumChiWatPriDed[nPumChiWatPri]( each final unit="1") if have_pumChiWatPriVar and have_pumChiWatPriDed "Primary dedicated CHW pump speed command"; Buildings.Controls.OBC.CDL.Interfaces.RealInput THeaWatSecRet( final unit="K", displayUnit="degC") if have_heaWat and have_senTHeaWatSecRet "Secondary HW return temperature"; Buildings.Controls.OBC.CDL.Interfaces.RealInput VHeaWatSec_flow( final unit="m3/s") if have_heaWat and have_senVHeaWatSec "Secondary HW volume flow rate"; Buildings.Controls.OBC.CDL.Interfaces.RealInput TChiWatSecRet( final unit="K", displayUnit="degC") if have_chiWat and have_senTChiWatSecRet "Secondary CHW return temperature"; Buildings.Controls.OBC.CDL.Interfaces.RealInput VChiWatSec_flow( final unit="m3/s") if have_chiWat and have_senVChiWatSec "Secondary CHW volume flow rate"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput TSupSet[nHp]( each final unit="K", each final quantity="ThermodynamicTemperature", each displayUnit="degC") "Active HP supply temperature setpoint"; Buildings.Controls.OBC.CDL.Interfaces.RealInput THeaWatPriSup(final unit="K", displayUnit="degC") if have_heaWat "Primary HW supply temperature"; Buildings.Controls.OBC.CDL.Interfaces.RealInput TChiWatPriSup(final unit="K", displayUnit="degC") if have_chiWat "Primary CHW return temperature"; Buildings.Controls.OBC.CDL.Interfaces.RealInput THeaWatSecSup(final unit="K", displayUnit="degC") if have_heaWat and have_senTHeaWatSecSup "Secondary HW supply temperature"; Buildings.Controls.OBC.CDL.Interfaces.RealInput TChiWatSecSup(final unit="K", displayUnit="degC") if have_chiWat and have_senTChiWatSecSup "Secondary CHW return temperature"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1Hrc if have_hrc "Sidestream HRC enable command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1CooHrc if have_hrc "Sidestream HRC mode command: true for cooling, false for heating"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1PumChiWatHrc if have_hrc "Sidestream HRC CHW pump enable command"; Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1PumHeaWatHrc if have_hrc "Sidestream HRC HW pump enable command"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput TSupSetHrc(final unit="K", displayUnit="degC") if have_hrc "Sidestream HRC active supply temperature setpoint"; Buildings.Controls.OBC.CDL.Interfaces.RealInput TChiWatRetUpsHrc(final unit="K", displayUnit="degC") if have_hrc "CHW return temperature upstream of HRC"; Buildings.Controls.OBC.CDL.Interfaces.RealInput THeaWatRetUpsHrc(final unit="K", displayUnit="degC") if have_hrc "HW return temperature upstream of HRC"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1Hrc_actual if have_hrc "HRC status"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1ReqFloChiWat if have_hrc and have_reqFloHrc "CHW flow request from HRC"; Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1ReqFloConWat if have_hrc and have_reqFloHrc "CW flow request from HRC"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yValHeaWatMinByp(final unit="1") if have_heaWat and is_priOnl "HW minimum flow bypass valve command"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput yValChiWatMinByp(final unit="1") if have_chiWat and is_priOnl "CHW minimum flow bypass valve command"; Enabling.Enable enaHea( final typ=Buildings.Templates.Plants.Controls.Types.Application.Heating, final TOutLck=TOutHeaWatLck, final dTOutLck=dTOutLck, final dtReq=dtReqDis, final dtRun=dtRunEna, final have_inpSch=have_inpSch, final nReqIgn=nReqIgnHeaWat, final sch=schHea) if have_heaWat "Heating mode enable"; Utilities.StageIndex idxStaHea( final nSta=nSta, final dtRun=dtRunSta) if have_heaWat "Compute heating stage index"; StagingRotation.StageAvailability avaStaHea( final staEqu=staEqu) if have_heaWat "Evaluate heating stage availability"; StagingRotation.EquipmentEnable enaEquHea( final staEqu=staEqu, final nEquAlt=nEquAlt) if have_heaWat "Compute enable command for equipment in heating mode"; StagingRotation.EventSequencing seqEve[nHp]( each final have_heaWat=have_heaWat, each final have_chiWat=have_chiWat, each final have_valInlIso=have_valHpInlIso, each final have_valOutIso=have_valHpOutIso, each final have_pumHeaWatPri=have_pumHeaWatPri, each final have_pumChiWatPri=have_pumChiWatPri, each final have_pumHeaWatSec=have_pumHeaWatSec, each final have_pumChiWatSec=have_pumChiWatSec, each final dtVal=dtVal, each final dtOff=dtOffHp) "Event sequencing"; StagingRotation.StageAvailability avaStaCoo( final staEqu=staEqu) if have_chiWat "Evaluate cooling stage availability"; StagingRotation.StageChangeCommand chaStaHea( typ=Buildings.Templates.Plants.Controls.Types.Application.Heating, final have_pumSec=have_pumHeaWatSec, final have_inpPlrSta=false, final plrSta=plrSta, final staEqu=staEqu, final capEqu=capHeaHp_nominal, final dtRun=dtRunSta, final cp_default=cp_default, final rho_default=rho_default, final dT=dTHea, final dtPri=dtPri, final dtSec=dtSec) if have_heaWat "Generate heating stage transition command"; StagingRotation.SortRuntime sorRunTimHea( idxEquAlt=idxEquAlt, nin=nHp) if have_heaWat "Sort lead/lag alternate equipment by staging runtime – Heating mode"; Enabling.Enable enaCoo( final typ=Buildings.Templates.Plants.Controls.Types.Application.Cooling, final TOutLck=TOutChiWatLck, final dTOutLck=dTOutLck, final dtReq=dtReqDis, final dtRun=dtRunEna, final have_inpSch=have_inpSch, final nReqIgn=nReqIgnChiWat, final sch=schCoo) if have_chiWat "Cooling mode enable"; StagingRotation.StageChangeCommand chaStaCoo( final typ=Buildings.Templates.Plants.Controls.Types.Application.Cooling, final have_pumSec=have_pumChiWatSec, final have_inpPlrSta=false, final plrSta=plrSta, final staEqu=staEqu, final capEqu=capCooHp_nominal, final dtRun=dtRunSta, final cp_default=cp_default, final rho_default=rho_default, final dT=dTCoo, final dtPri=dtPri, final dtSec=dtSec) if have_chiWat "Generate cooling stage transition command"; Utilities.StageIndex idxStaCoo( final nSta=nSta, final dtRun=dtRunSta) if have_chiWat "Compute cooling stage index"; StagingRotation.EquipmentEnable enaEquCoo( final staEqu=staEqu, final nEquAlt=nEquAlt) if have_chiWat "Compute enable command for equipment in cooling mode"; StagingRotation.EquipmentAvailability avaEquHeaCoo[nHp]( each final have_heaWat=have_heaWat, each final have_chiWat=have_chiWat, each final dtOff=dtOff) "Evaluate equipment availability in heating or cooling mode"; Buildings.Controls.OBC.CDL.Logical.Pre y1HeaPre[nHp] if have_heaWat and have_chiWat "Left-limit of command signal to break algebraic loop"; StagingRotation.SortRuntime sorRunTimCoo( final idxEquAlt=idxEquAlt, nin=nHp) if have_chiWat "Sort lead/lag alternate equipment by staging runtime – Cooling mode"; Pumps.Generic.StagingHeadered staPumHeaWatPri( final is_pri=true, final is_ctlDp=have_pumPriCtlDp, final have_valInlIso=have_valHpInlIso, final have_valOutIso=have_valHpOutIso, final nEqu=nHp, final nPum=nPumHeaWatPri, final is_hdr=have_pumPriHdr, final dtRun=dtRunPumSta, final dVOffUp=dVOffUpPumSta, final dVOffDow=dVOffDowPumSta, final nSenDp=if have_senDpHeaWatRemWir then nSenDpHeaWatRem else 1, final V_flow_nominal=VHeaWatPri_flow_nominal, final dtRunFaiSaf=dtRunFaiSafPumSta, final dtRunFaiSafLowY=dtRunFaiSafLowYPumSta, final dpOff=dpOffPumSta, final yUp=yUpPumSta, final yDow=yDowPumSta) if have_pumHeaWatPri "Primary HW pump staging"; Pumps.Generic.StagingHeadered staPumChiWatPri( final is_pri=true, final is_ctlDp=have_pumPriCtlDp, final have_valInlIso=have_valHpInlIso, final have_valOutIso=have_valHpOutIso, final nEqu=nHp, final nPum=nPumChiWatPri, final is_hdr=have_pumPriHdr, final dtRun=dtRunPumSta, final dVOffUp=dVOffUpPumSta, final dVOffDow=dVOffDowPumSta, final nSenDp=if have_senDpChiWatRemWir then nSenDpChiWatRem else 1, final V_flow_nominal=VChiWatPri_flow_nominal, final dtRunFaiSaf=dtRunFaiSafPumSta, final dtRunFaiSafLowY=dtRunFaiSafLowYPumSta, final dpOff=dpOffPumSta, final yUp=yUpPumSta, final yDow=yDowPumSta) if have_pumChiWatPri "Primary CHW pump staging"; Pumps.Generic.StagingHeadered staPumChiWatSec( final is_pri=false, final nEqu=nHp, final nPum=nPumChiWatSec, final is_hdr=have_pumSecHdr, final is_ctlDp=have_pumSecCtlDp, final nSenDp=if have_senDpChiWatRemWir then nSenDpChiWatRem else 1, final V_flow_nominal=VChiWatSec_flow_nominal, final dtRun=dtRunPumSta, final dtRunFaiSaf=dtRunFaiSafPumSta, final dtRunFaiSafLowY=dtRunFaiSafLowYPumSta, final dVOffUp=dVOffUpPumSta, final dVOffDow=dVOffDowPumSta, final dpOff=dpOffPumSta, final yUp=yUpPumSta, final yDow=yDowPumSta) if have_pumChiWatSec "Secondary CHW pump staging"; Pumps.Generic.StagingHeadered staPumHeaWatSec( final is_pri=false, final nEqu=nHp, final nPum=nPumHeaWatSec, final is_hdr=have_pumSecHdr, final is_ctlDp=have_pumSecCtlDp, final nSenDp=if have_senDpHeaWatRemWir then nSenDpHeaWatRem else 1, final V_flow_nominal=VHeaWatSec_flow_nominal, final dtRun=dtRunPumSta, final dtRunFaiSaf=dtRunFaiSafPumSta, final dtRunFaiSafLowY=dtRunFaiSafLowYPumSta, final dVOffUp=dVOffUpPumSta, final dVOffDow=dVOffDowPumSta, final dpOff=dpOffPumSta, final yUp=yUpPumSta, final yDow=yDowPumSta) if have_pumHeaWatSec "Secondary HW pump staging"; Utilities.PlaceholderReal THeaWatRet(final have_inp=have_senTHeaWatPriRet, final have_inpPh=true) if have_heaWat "Select HW return temperature sensor"; Utilities.PlaceholderReal VHeaWatSta_flow(final have_inp=have_senVHeaWatPri, final have_inpPh=true) if have_heaWat "For staging logic select primary flow sensor if both primary and secondary sensors available"; Utilities.PlaceholderReal TChiWatRet(final have_inp=have_senTChiWatPriRet, final have_inpPh=true) if have_chiWat "Select CHW return temperature sensor"; Utilities.PlaceholderReal VChiWatSta_flow(final have_inp=have_senVChiWatPri, final have_inpPh=true) if have_chiWat "For staging logic select primary flow sensor if both primary and secondary sensors available"; Buildings.Controls.OBC.CDL.Logical.Pre y1HpPre[nHp] "Left-limit of command signal to break algebraic loop"; StagingRotation.StageCompletion comStaCoo( nin=nHp) if have_chiWat "Check successful completion of cooling stage change"; StagingRotation.StageCompletion comStaHea( nin=nHp) if have_heaWat "Check successful completion of heating stage change"; Setpoints.PlantReset resHeaWat( final TSup_nominal=THeaWatSup_nominal, final TSupSetLim=THeaWatSupSet_min, final dpSet_max=dpHeaWatRemSet_max, final dpSet_min=dpHeaWatRemSet_min, final dtDel=dtDel, final dtHol=dtHol, final dtRes=dtResHeaWat, final nReqResIgn=nReqResIgnHeaWat, final nSenDpRem=nSenDpHeaWatRem, final resDp_max=resDpHeaWat_max, final resTSup_min=resTHeaWatSup_min, final res_init=res_init, final res_max=res_max, final res_min=res_min, final rsp=rspHeaWat, final rsp_max=rspHeaWat_max, final tri=triHeaWat) if have_heaWat "HW plant reset"; Setpoints.PlantReset resChiWat( final TSup_nominal=TChiWatSup_nominal, final TSupSetLim=TChiWatSupSet_max, final dpSet_max=dpChiWatRemSet_max, final dpSet_min=dpChiWatRemSet_min, final dtDel=dtDel, final dtHol=dtHol, final dtRes=dtResChiWat, final nReqResIgn=nReqResIgnChiWat, final nSenDpRem=nSenDpChiWatRem, final resDp_max=resDpChiWat_max, final resTSup_min=resTChiWatSup_min, final res_init=res_init, final res_max=res_max, final res_min=res_min, final rsp=rspChiWat, final rsp_max=rspChiWat_max, final tri=triChiWat) if have_chiWat "CHW plant reset"; Pumps.Primary.VariableSpeed ctlPumPri( final have_heaWat=have_heaWat, final have_chiWat=have_chiWat, final have_pumPriCtlDp=have_pumPriCtlDp, final have_pumChiWatPriDed=have_pumChiWatPriDed, final have_pumPriHdr=have_pumPriHdr, final nEqu=nHp, final nPumHeaWatPri=nPumHeaWatPri, final nPumChiWatPri=nPumChiWatPri, final yPumHeaWatPriSet=yPumHeaWatPriSet, final yPumChiWatPriSet=yPumChiWatPriSet, final have_senDpChiWatRemWir=have_senDpChiWatRemWir, final have_senDpHeaWatRemWir=have_senDpHeaWatRemWir, final kCtlDpChiWat=kCtlDpChiWat, final kCtlDpHeaWat=kCtlDpHeaWat, final nSenDpChiWatRem=nSenDpChiWatRem, final nSenDpHeaWatRem=nSenDpHeaWatRem, final TiCtlDpChiWat=TiCtlDpChiWat, final TiCtlDpHeaWat=TiCtlDpHeaWat, final yPumChiWatPri_min=yPumChiWatPri_min, final yPumHeaWatPri_min=yPumHeaWatPri_min) if have_pumHeaWatPriVar or have_pumChiWatPriVar "Primary pump speed control"; Pumps.Generic.ControlDifferentialPressure ctlPumHeaWatSec( final have_senDpRemWir=have_senDpHeaWatRemWir, final nPum=nPumHeaWatSec, final nSenDpRem=nSenDpHeaWatRem, final y_min=yPumHeaWatSec_min, final k=kCtlDpHeaWat, final Ti=TiCtlDpHeaWat) if have_pumHeaWatSec and have_pumSecCtlDp "Secondary HW pump speed control"; Pumps.Generic.ControlDifferentialPressure ctlPumChiWatSec( final have_senDpRemWir=have_senDpChiWatRemWir, final nPum=nPumChiWatSec, final nSenDpRem=nSenDpChiWatRem, final y_min=yPumChiWatSec_min, final k=kCtlDpChiWat, final Ti=TiCtlDpChiWat) if have_pumChiWatSec and have_pumSecCtlDp "Secondary CHW pump speed control"; Buildings.Controls.OBC.CDL.Reals.Switch swiTSupSet[nHp] if have_heaWat and have_chiWat "Select supply temperature setpoint based on operating mode"; Buildings.Controls.OBC.CDL.Routing.RealScalarReplicator repTChiWatSupSet(final nout=nHp) if have_chiWat "Replicate CHWST setpoint"; Buildings.Controls.OBC.CDL.Routing.RealScalarReplicator repTHeaWatSupSet(final nout=nHp) if have_heaWat "Replicate HWST setpoint"; Buildings.Controls.OBC.CDL.Routing.RealExtractSignal pasTHeaWatSupSet(final nin =nHp, final nout=nHp) if have_heaWat and not have_chiWat "Direct pass through for HWST setpoint"; Buildings.Controls.OBC.CDL.Routing.RealExtractSignal pasTChiWatSupSet(final nin =nHp, final nout=nHp) if have_chiWat and not have_heaWat "Direct pass through for CHWST setpoint"; HeatRecoveryChillers.Controller hrc( final COPHea_nominal=COPHeaHrc_nominal, final TChiWatSup_min=TChiWatSupHrc_min, final THeaWatSup_max=THeaWatSupHrc_max, final capCoo_min=capCooHrc_min, final capHea_min=capHeaHrc_min, final cp_default=cp_default, final dtLoa=dtLoaHrc, final dtRun=dtRunEna, final dtTem1=dtTem1Hrc, final dtTem2=dtTem2Hrc, final have_reqFlo=have_reqFloHrc, final rho_default=rho_default) if have_hrc "Sidestream heat recovery chiller control"; Buildings.Controls.OBC.CDL.Routing.RealExtractSignal pasDpHeaWatRemSet(final nin=nSenDpHeaWatRem, final nout=nSenDpHeaWatRem) if have_heaWat and have_senDpHeaWatRemWir "Direct pass through for HW ∆p setpoint"; Buildings.Controls.OBC.CDL.Routing.RealExtractSignal pasDpChiWatRemSet(final nin=nSenDpChiWatRem, final nout=nSenDpChiWatRem) if have_chiWat and have_senDpChiWatRemWir "Direct pass through for CHW ∆p setpoint"; MinimumFlow.ControllerDualMode ctlFloMin( final have_chiWat=have_chiWat, final have_heaWat=have_heaWat, final have_pumChiWatPri=have_pumChiWatPri, final have_valInlIso=have_valHpInlIso, final have_valOutIso=have_valHpOutIso, final k=kValMinByp, final nEnaChiWat=if have_valHpInlIso or have_valHpOutIso then nHp elseif have_pumChiWatPri then nPumChiWatPri else nPumHeaWatPri, final nEnaHeaWat=if have_valHpInlIso or have_valHpOutIso then nHp else nPumHeaWatPri, final nEqu=nHp, final Ti=TiValMinByp, final VChiWat_flow_min=VChiWatHp_flow_min, final VChiWat_flow_nominal=VChiWatHp_flow_nominal, final VHeaWat_flow_min=VHeaWatHp_flow_min, final VHeaWat_flow_nominal=VHeaWatHp_flow_nominal) if is_priOnl "CHW/HW minimum flow bypass valve controller"; Utilities.PlaceholderReal VHeaWatLoa_flow(final have_inp=is_priOnl, final have_inpPh=true) if have_heaWat "For HRC logic select either primary or secondary sensor depending on plant configuration"; Utilities.PlaceholderReal VChiWatLoa_flow(final have_inp=is_priOnl, final have_inpPh=true) if have_chiWat "For HRC logic select either primary or secondary sensor depending on plant configuration"; equation connect(u1SchHea, enaHea.u1Sch); connect(nReqPlaHeaWat, enaHea.nReqPla); connect(TOut, enaHea.TOut); connect(enaHea.y1, idxStaHea.u1Lea); connect(avaStaHea.y1, idxStaHea.u1AvaSta); connect(idxStaHea.y, enaEquHea.uSta); connect(seqEve.y1, y1Hp); connect(seqEve.y1Hea, y1HeaHp); connect(seqEve.y1ValHeaWatOutIso, y1ValHeaWatHpOutIso); connect(seqEve.y1ValHeaWatInlIso, y1ValHeaWatHpInlIso); connect(seqEve.y1ValChiWatInlIso, y1ValChiWatHpInlIso); connect(seqEve.y1ValChiWatOutIso, y1ValChiWatHpOutIso); connect(idxStaHea.y, chaStaHea.uSta); connect(chaStaHea.y1Dow, idxStaHea.u1Dow); connect(chaStaHea.y1Up, idxStaHea.u1Up); connect(avaStaHea.y1, chaStaHea.u1AvaSta); connect(sorRunTimHea.yIdx, enaEquHea.uIdxAltSor); connect(nReqPlaChiWat, enaCoo.nReqPla); connect(TOut, enaCoo.TOut); connect(u1SchCoo, enaCoo.u1Sch); connect(avaStaCoo.y1, chaStaCoo.u1AvaSta); connect(enaCoo.y1, idxStaCoo.u1Lea); connect(chaStaCoo.y1Up, idxStaCoo.u1Up); connect(chaStaCoo.y1Dow, idxStaCoo.u1Dow); connect(idxStaCoo.y, enaEquCoo.uSta); connect(enaEquHea.y1, seqEve.u1Hea); connect(enaEquCoo.y1, seqEve.u1Coo); connect(y1HeaHp, y1HeaPre.u); connect(y1HeaPre.y, avaEquHeaCoo.u1Hea); connect(avaEquHeaCoo.y1Hea, avaStaHea.u1Ava); connect(avaEquHeaCoo.y1Coo, avaStaCoo.u1Ava); connect(avaStaCoo.y1, idxStaCoo.u1AvaSta); connect(avaEquHeaCoo.y1Hea, enaEquHea.u1Ava); connect(avaEquHeaCoo.y1Coo, enaEquCoo.u1Ava); connect(sorRunTimCoo.yIdx, enaEquCoo.uIdxAltSor); connect(idxStaCoo.y, chaStaCoo.uSta); connect(avaEquHeaCoo.y1Hea, sorRunTimHea.u1Ava); connect(avaEquHeaCoo.y1Coo, sorRunTimCoo.u1Ava); connect(staPumChiWatPri.y1, y1PumChiWatPri); connect(staPumChiWatPri.y1_actual, seqEve.u1PumChiWatPri_actual); connect(seqEve.y1PumChiWatPri, staPumChiWatPri.u1Pum); connect(u1PumChiWatPri_actual, staPumChiWatPri.u1Pum_actual); connect(u1PumHeaWatPri_actual, staPumHeaWatPri.u1Pum_actual); connect(staPumHeaWatPri.y1_actual, seqEve.u1PumHeaWatPri_actual); connect(staPumHeaWatSec.y1, y1PumHeaWatSec); connect(staPumChiWatSec.y1, y1PumChiWatSec); connect(u1PumHeaWatSec_actual, staPumHeaWatSec.u1Pum_actual); connect(u1PumChiWatSec_actual, staPumChiWatSec.u1Pum_actual); connect(staPumHeaWatPri.y1, y1PumHeaWatPri); connect(staPumChiWatSec.y1_actual, seqEve.u1PumChiWatSec_actual); connect(seqEve.y1PumHeaWatPri, staPumHeaWatPri.u1Pum); connect(staPumHeaWatSec.y1_actual, seqEve.u1PumHeaWatSec_actual); connect(VHeaWatSec_flow, staPumHeaWatSec.V_flow); connect(VChiWatSec_flow, staPumChiWatSec.V_flow); connect(THeaWatPriRet, THeaWatRet.u); connect(THeaWatRet.y, chaStaHea.TRet); connect(THeaWatSecRet, THeaWatRet.uPh); connect(VHeaWatPri_flow, VHeaWatSta_flow.u); connect(VHeaWatSta_flow.y, chaStaHea.V_flow); connect(VHeaWatSec_flow, VHeaWatSta_flow.uPh); connect(TChiWatPriRet, TChiWatRet.u); connect(TChiWatRet.y, chaStaCoo.TRet); connect(TChiWatSecRet, TChiWatRet.uPh); connect(VChiWatPri_flow, VChiWatSta_flow.u); connect(VChiWatSta_flow.y, chaStaCoo.V_flow); connect(VChiWatSec_flow, VChiWatSta_flow.uPh); connect(enaHea.y1, staPumHeaWatSec.u1Pla); connect(enaCoo.y1, staPumChiWatSec.u1Pla); connect(seqEve.y1ValHeaWatInlIso, staPumHeaWatPri.u1ValInlIso); connect(seqEve.y1ValHeaWatOutIso, staPumHeaWatPri.u1ValOutIso); connect(seqEve.y1ValChiWatInlIso, staPumChiWatPri.u1ValInlIso); connect(seqEve.y1ValChiWatOutIso, staPumChiWatPri.u1ValOutIso); connect(u1Hp_actual, sorRunTimHea.u1Run); connect(u1Hp_actual, sorRunTimCoo.u1Run); connect(y1Hp, y1HpPre.u); connect(y1HpPre.y, avaEquHeaCoo.u1); connect(idxStaCoo.y, comStaCoo.uSta); connect(comStaCoo.y1, chaStaCoo.u1StaPro); connect(u1Hp_actual, comStaCoo.u1_actual); connect(y1HpPre.y, comStaCoo.u1); connect(idxStaHea.y, comStaHea.uSta); connect(u1Hp_actual, comStaHea.u1_actual); connect(y1HpPre.y, comStaHea.u1); connect(comStaHea.y1, chaStaHea.u1StaPro); connect(resHeaWat.dpSet, dpHeaWatRemSet); connect(resChiWat.dpSet, dpChiWatRemSet); connect(nReqResHeaWat,resHeaWat.nReqRes); connect(nReqResChiWat,resChiWat.nReqRes); connect(enaCoo.y1, resChiWat.u1Ena); connect(enaHea.y1, resHeaWat.u1Ena); connect(comStaHea.y1, resHeaWat.u1StaPro); connect(comStaCoo.y1, resChiWat.u1StaPro); connect(resChiWat.TSupSet, chaStaCoo.TSupSet); connect(resHeaWat.TSupSet, chaStaHea.TSupSet); connect(ctlPumPri.yPumHeaWatPriHdr, yPumHeaWatPriHdr); connect(ctlPumPri.yPumChiWatPriHdr, yPumChiWatPriHdr); connect(ctlPumPri.yPumHeaWatPriDed, yPumHeaWatPriDed); connect(ctlPumPri.yPumChiWatPriDed, yPumChiWatPriDed); connect(staPumHeaWatPri.y1, ctlPumPri.u1PumHeaWatPri); connect(staPumChiWatPri.y1, ctlPumPri.u1PumChiWatPri); connect(seqEve.y1Hea, ctlPumPri.u1Hea); connect(ctlPumHeaWatSec.y, yPumHeaWatSec); connect(ctlPumChiWatSec.y, yPumChiWatSec); connect(u1PumHeaWatSec_actual, ctlPumHeaWatSec.y1_actual); connect(u1PumChiWatSec_actual, ctlPumChiWatSec.y1_actual); connect(resChiWat.dpSet, ctlPumChiWatSec.dpRemSet); connect(dpHeaWatRem, ctlPumHeaWatSec.dpRem); connect(resHeaWat.dpSet, ctlPumHeaWatSec.dpRemSet); connect(dpHeaWatLoc, ctlPumHeaWatSec.dpLoc); connect(dpHeaWatLocSet, ctlPumHeaWatSec.dpLocSet); connect(dpChiWatRem, ctlPumChiWatSec.dpRem); connect(dpChiWatLocSet, ctlPumChiWatSec.dpLocSet); connect(dpChiWatLoc, ctlPumChiWatSec.dpLoc); connect(u1AvaHp.y, avaEquHeaCoo.u1Ava); connect(repTChiWatSupSet.y, swiTSupSet.u3); connect(repTHeaWatSupSet.y, swiTSupSet.u1); connect(resChiWat.TSupSet, repTChiWatSupSet.u); connect(resHeaWat.TSupSet, repTHeaWatSupSet.u); connect(seqEve.y1Hea, swiTSupSet.u2); connect(swiTSupSet.y, TSupSet); connect(pasTChiWatSupSet.y, TSupSet); connect(pasTHeaWatSupSet.y, TSupSet); connect(repTChiWatSupSet.y, pasTChiWatSupSet.u); connect(repTHeaWatSupSet.y, pasTHeaWatSupSet.u); connect(resChiWat.TSupSet, TChiWatSupSet); connect(resHeaWat.TSupSet, THeaWatSupSet); connect(hrc.y1, y1Hrc); connect(hrc.y1Coo, y1CooHrc); connect(hrc.TSupSet, TSupSetHrc); connect(hrc.y1PumChiWat, y1PumChiWatHrc); connect(hrc.y1PumHeaWat, y1PumHeaWatHrc); connect(TChiWatSupSet, hrc.TChiWatSupSet); connect(THeaWatSupSet, hrc.THeaWatSupSet); connect(enaCoo.y1, hrc.u1Coo); connect(enaHea.y1, hrc.u1Hea); connect(TChiWatRetUpsHrc, hrc.TChiWatRetUpsHrc); connect(THeaWatRetUpsHrc, hrc.THeaWatRetUpsHrc); connect(THeaWatSecRet, hrc.THeaWatHrcLvg); connect(TChiWatSecRet, hrc.TChiWatHrcLvg); connect(u1Hrc_actual, hrc.u1Hrc_actual); connect(u1ReqFloChiWat, hrc.u1ReqFloChiWat); connect(u1ReqFloConWat, hrc.u1ReqFloConWat); connect(TChiWatPriSup, chaStaCoo.TPriSup); connect(THeaWatSecSup, chaStaHea.TSecSup); connect(TChiWatSecSup, chaStaCoo.TSecSup); connect(THeaWatPriSup, chaStaHea.TPriSup); connect(ctlPumHeaWatSec.y, staPumHeaWatSec.y); connect(ctlPumChiWatSec.y, staPumChiWatSec.y); connect(ctlPumHeaWatSec.dpLocSetMax, staPumHeaWatSec.dpSet[1]); connect(ctlPumChiWatSec.dpLocSetMax, staPumChiWatSec.dpSet[1]); connect(dpHeaWatLoc, staPumHeaWatSec.dp[1]); connect(dpChiWatLoc, staPumChiWatSec.dp[1]); connect(dpChiWatRem, staPumChiWatSec.dp); connect(dpHeaWatRem, staPumHeaWatSec.dp); connect(resHeaWat.dpSet, pasDpHeaWatRemSet.u); connect(pasDpHeaWatRemSet.y, staPumHeaWatSec.dpSet); connect(pasDpChiWatRemSet.y, staPumChiWatSec.dpSet); connect(resChiWat.dpSet, pasDpChiWatRemSet.u); connect(resChiWat.dpSet, ctlPumPri.dpChiWatRemSet); connect(resHeaWat.dpSet, ctlPumPri.dpHeaWatRemSet); connect(dpHeaWatRem, ctlPumPri.dpHeaWatRem); connect(dpHeaWatLocSet, ctlPumPri.dpHeaWatLocSet); connect(dpHeaWatLoc, ctlPumPri.dpHeaWatLoc); connect(pasDpHeaWatRemSet.y, staPumHeaWatPri.dpSet); connect(pasDpChiWatRemSet.y, staPumChiWatPri.dpSet); connect(ctlPumPri.dpChiWatLocSetMax, staPumChiWatPri.dpSet[1]); connect(ctlPumPri.dpHeaWatLocSetMax, staPumHeaWatPri.dpSet[1]); connect(dpHeaWatRem, staPumHeaWatPri.dp); connect(dpChiWatRem, staPumChiWatPri.dp); connect(dpHeaWatLoc, staPumHeaWatPri.dp[1]); connect(dpChiWatLoc, staPumChiWatPri.dp[1]); connect(dpChiWatLoc, ctlPumPri.dpChiWatLoc); connect(VChiWatPri_flow, staPumChiWatPri.V_flow); connect(VHeaWatPri_flow, staPumHeaWatPri.V_flow); connect(u1PumHeaWatPri_actual, ctlPumPri.u1PumHeaWatPri_actual); connect(u1PumChiWatPri_actual, ctlPumPri.u1PumChiWatPri_actual); connect(dpChiWatRem, ctlPumPri.dpChiWatRem); connect(dpChiWatLocSet, ctlPumPri.dpChiWatLocSet); connect(ctlFloMin.yValHeaWatMinByp, yValHeaWatMinByp); connect(ctlFloMin.yValChiWatMinByp, yValChiWatMinByp); connect(y1Hp, ctlFloMin.u1Equ); connect(y1HeaHp, ctlFloMin.u1HeaEqu); connect(y1ValHeaWatHpInlIso, ctlFloMin.u1ValHeaWatInlIso); connect(y1ValHeaWatHpOutIso, ctlFloMin.u1ValHeaWatOutIso); connect(y1ValChiWatHpInlIso, ctlFloMin.u1ValChiWatInlIso); connect(y1ValChiWatHpOutIso, ctlFloMin.u1ValChiWatOutIso); connect(u1PumHeaWatPri_actual, ctlFloMin.u1PumHeaWatPri_actual); connect(u1PumChiWatPri_actual, ctlFloMin.u1PumChiWatPri_actual); connect(VHeaWatPri_flow, ctlFloMin.VHeaWatPri_flow); connect(VChiWatPri_flow, ctlFloMin.VChiWatPri_flow); connect(ctlPumPri.yPumHeaWatPriHdr, staPumHeaWatPri.y); connect(ctlPumPri.yPumChiWatPriHdr, staPumChiWatPri.y); connect(VHeaWatSec_flow, VHeaWatLoa_flow.uPh); connect(VHeaWatPri_flow, VHeaWatLoa_flow.u); connect(VChiWatSec_flow, VChiWatLoa_flow.uPh); connect(VChiWatPri_flow, VChiWatLoa_flow.u); connect(VChiWatLoa_flow.y, hrc.VChiWatLoa_flow); connect(VHeaWatLoa_flow.y, hrc.VHeaWatLoa_flow); end AirToWater;