Source code for honeybee_openstudio.hvac.standards.air_conditioner_variable_refrigerant_flow

# coding=utf-8
"""Module taken from OpenStudio-standards.

https://github.com/NREL/openstudio-standards/blob/master/
lib/openstudio-standards/prototypes/common/objects/
Prototype.AirConditionerVariableRefrigerantFlow.rb
"""
from __future__ import division

from ladybug.datatype.temperature import Temperature

from honeybee_openstudio.openstudio import openstudio, openstudio_model
from .schedule import model_add_schedule

TEMPERATURE = Temperature()


[docs] def create_air_conditioner_variable_refrigerant_flow( model, name='VRF System', schedule=None, type=None, cooling_cop=4.287, heating_cop=4.147, heat_recovery=True, defrost_strategy='Resistive', condenser_type='AirCooled', condenser_loop=None, master_zone=None, priority_control_type='LoadPriority'): """Prototype AirConditionerVariableRefrigerantFlow object. Enters in default curves for coil by type of coil. Args: model: [OpenStudio::Model::Model] OpenStudio model object. name: [String] the name of the system, or None in which case it will be defaulted. schedule: [String] name of the availability schedule, or [<OpenStudio::Model::Schedule>] Schedule object, or None in which case default to always on. type: [String] the type of unit to reference for the correct curve set. cooling_cop: [Double] rated cooling coefficient of performance. heating_cop: [Double] rated heating coefficient of performance. heat_recovery: [Boolean] does the unit have heat recovery. defrost_strategy: [String] type of defrost strategy. Options are ReverseCycle or Resistive. condenser_type: [String] type of condenser. options are AirCooled (default), WaterCooled, and EvaporativelyCooled. if WaterCooled, the user most include a condenser_loop. master_zone: [<OpenStudio::Model::ThermalZone>] master control zone to switch between heating and cooling. priority_control_type: [String] Type of master thermostat priority control type. Options are LoadPriority, ZonePriority, ThermostatOffsetPriority, MasterThermostatPriority. """ vrf_outdoor_unit = openstudio_model.AirConditionerVariableRefrigerantFlow(model) # set name name = 'VRF System' if name is None else name vrf_outdoor_unit.setName(name) # set availability schedule if schedule is None: # default always on availability_schedule = model.alwaysOnDiscreteSchedule() elif isinstance(schedule, str): if schedule == 'alwaysOffDiscreteSchedule': availability_schedule = model.alwaysOffDiscreteSchedule() elif schedule == 'alwaysOnDiscreteSchedule': availability_schedule = model.alwaysOnDiscreteSchedule() else: availability_schedule = model_add_schedule(model, schedule) else: # assume that it is an actual schedule object availability_schedule = schedule vrf_outdoor_unit.setAvailabilitySchedule(availability_schedule) # set cops if model.version() < openstudio.VersionString('2.9.0'): vrf_outdoor_unit.setRatedCoolingCOP(cooling_cop) else: vrf_outdoor_unit.setGrossRatedCoolingCOP(cooling_cop) vrf_outdoor_unit.setRatedHeatingCOP(heating_cop) # heat recovery vrf_outdoor_unit.setHeatPumpWasteHeatRecovery(heat_recovery) # defrost strategy vrf_outdoor_unit.setDefrostStrategy(defrost_strategy) # defaults vrf_outdoor_unit.setMinimumOutdoorTemperatureinCoolingMode(-15.0) vrf_outdoor_unit.setMaximumOutdoorTemperatureinCoolingMode(50.0) vrf_outdoor_unit.setMinimumOutdoorTemperatureinHeatingMode(-25.0) vrf_outdoor_unit.setMaximumOutdoorTemperatureinHeatingMode(16.1) vrf_outdoor_unit.setMinimumOutdoorTemperatureinHeatRecoveryMode(-10.0) vrf_outdoor_unit.setMaximumOutdoorTemperatureinHeatRecoveryMode(27.2) vrf_outdoor_unit.setEquivalentPipingLengthusedforPipingCorrectionFactorinCoolingMode(30.48) vrf_outdoor_unit.setEquivalentPipingLengthusedforPipingCorrectionFactorinHeatingMode(30.48) vrf_outdoor_unit.setVerticalHeightusedforPipingCorrectionFactor(10.668) # condenser type if condenser_type == 'WaterCooled': vrf_outdoor_unit.setString(56, condenser_type) # require condenser_loop if not condenser_loop: msg = 'Must specify condenser_loop for vrf_outdoor_unit if WaterCooled' raise ValueError(msg) condenser_loop.addDemandBranchForComponent(vrf_outdoor_unit) elif condenser_type == 'EvaporativelyCooled': vrf_outdoor_unit.setString(56, condenser_type) # set master zone if master_zone is not None and master_zone.to_ThermalZone().is_initialized(): vrf_outdoor_unit.setZoneforMasterThermostatLocation(master_zone) vrf_outdoor_unit.setMasterThermostatPriorityControlType(priority_control_type) vrf_cool_cap_f_of_low_temp = None vrf_cool_cap_ratio_boundary = None vrf_cool_cap_f_of_high_temp = None vrf_cool_eir_f_of_low_temp = None vrf_cool_eir_ratio_boundary = None vrf_cool_eir_f_of_high_temp = None vrf_cooling_eir_low_plr = None vrf_cooling_eir_high_plr = None vrf_cooling_comb_ratio = None vrf_cooling_cplffplr = None vrf_heat_cap_f_of_low_temp = None vrf_heat_cap_ratio_boundary = None vrf_heat_cap_f_of_high_temp = None vrf_heat_eir_f_of_low_temp = None vrf_heat_eir_boundary = None vrf_heat_eir_f_of_high_temp = None vrf_heating_eir_low_plr = None vrf_heating_eir_hi_plr = None vrf_heating_comb_ratio = None vrf_heating_cplffplr = None vrf_defrost_eir_f_of_temp = None # curve sets if type == 'OS default': pass # use OS default curves else: # default curve set # based on DAIKINREYQ 120 on BCL # Cooling Capacity Ratio Modifier Function of Low Temperature Curve vrf_cool_cap_f_of_low_temp = openstudio_model.CurveBiquadratic(model) vrf_cool_cap_f_of_low_temp.setName('vrf_cool_cap_f_of_low_temp') vrf_cool_cap_f_of_low_temp.setCoefficient1Constant(-1.69653019339465) vrf_cool_cap_f_of_low_temp.setCoefficient2x(0.207248180531939) vrf_cool_cap_f_of_low_temp.setCoefficient3xPOW2(-0.00343146229659024) vrf_cool_cap_f_of_low_temp.setCoefficient4y(0.016381597419714) vrf_cool_cap_f_of_low_temp.setCoefficient5yPOW2(-6.7387172629965e-05) vrf_cool_cap_f_of_low_temp.setCoefficient6xTIMESY(-0.000849848402870241) vrf_cool_cap_f_of_low_temp.setMinimumValueofx(13.9) vrf_cool_cap_f_of_low_temp.setMaximumValueofx(23.9) vrf_cool_cap_f_of_low_temp.setMinimumValueofy(-5.0) vrf_cool_cap_f_of_low_temp.setMaximumValueofy(43.3) vrf_cool_cap_f_of_low_temp.setMinimumCurveOutput(0.59) vrf_cool_cap_f_of_low_temp.setMaximumCurveOutput(1.33) # Cooling Capacity Ratio Boundary Curve vrf_cool_cap_ratio_boundary = openstudio_model.CurveCubic(model) vrf_cool_cap_ratio_boundary.setName('vrf_cool_cap_ratio_boundary') vrf_cool_cap_ratio_boundary.setCoefficient1Constant(25.73) vrf_cool_cap_ratio_boundary.setCoefficient2x(-0.03150043) vrf_cool_cap_ratio_boundary.setCoefficient3xPOW2(-0.01416595) vrf_cool_cap_ratio_boundary.setCoefficient4xPOW3(0.0) vrf_cool_cap_ratio_boundary.setMinimumValueofx(11.0) vrf_cool_cap_ratio_boundary.setMaximumValueofx(30.0) # Cooling Capacity Ratio Modifier Function of High Temperature Curve vrf_cool_cap_f_of_high_temp = openstudio_model.CurveBiquadratic(model) vrf_cool_cap_f_of_high_temp.setName('vrf_cool_cap_f_of_high_temp') vrf_cool_cap_f_of_high_temp.setCoefficient1Constant(0.6867358) vrf_cool_cap_f_of_high_temp.setCoefficient2x(0.0207631) vrf_cool_cap_f_of_high_temp.setCoefficient3xPOW2(0.0005447) vrf_cool_cap_f_of_high_temp.setCoefficient4y(-0.0016218) vrf_cool_cap_f_of_high_temp.setCoefficient5yPOW2(-4.259e-07) vrf_cool_cap_f_of_high_temp.setCoefficient6xTIMESY(-0.0003392) vrf_cool_cap_f_of_high_temp.setMinimumValueofx(15.0) vrf_cool_cap_f_of_high_temp.setMaximumValueofx(24.0) vrf_cool_cap_f_of_high_temp.setMinimumValueofy(16.0) vrf_cool_cap_f_of_high_temp.setMaximumValueofy(43.0) # Cooling Energy Input Ratio Modifier Function of Low Temperature Curve vrf_cool_eir_f_of_low_temp = openstudio_model.CurveBiquadratic(model) vrf_cool_eir_f_of_low_temp.setName('vrf_cool_eir_f_of_low_temp') vrf_cool_eir_f_of_low_temp.setCoefficient1Constant(-1.61908214818635) vrf_cool_eir_f_of_low_temp.setCoefficient2x(0.185964818731756) vrf_cool_eir_f_of_low_temp.setCoefficient3xPOW2(-0.00389610393381592) vrf_cool_eir_f_of_low_temp.setCoefficient4y(-0.00901995326324613) vrf_cool_eir_f_of_low_temp.setCoefficient5yPOW2(0.00030340007815629) vrf_cool_eir_f_of_low_temp.setCoefficient6xTIMESY(0.000476048529099348) vrf_cool_eir_f_of_low_temp.setMinimumValueofx(13.9) vrf_cool_eir_f_of_low_temp.setMaximumValueofx(23.9) vrf_cool_eir_f_of_low_temp.setMinimumValueofy(-5.0) vrf_cool_eir_f_of_low_temp.setMaximumValueofy(43.3) vrf_cool_eir_f_of_low_temp.setMinimumCurveOutput(0.27) vrf_cool_eir_f_of_low_temp.setMaximumCurveOutput(1.15) # Cooling Energy Input Ratio Boundary Curve vrf_cool_eir_ratio_boundary = openstudio_model.CurveCubic(model) vrf_cool_eir_ratio_boundary.setName('vrf_cool_eir_ratio_boundary') vrf_cool_eir_ratio_boundary.setCoefficient1Constant(25.73473775) vrf_cool_eir_ratio_boundary.setCoefficient2x(-0.03150043) vrf_cool_eir_ratio_boundary.setCoefficient3xPOW2(-0.01416595) vrf_cool_eir_ratio_boundary.setCoefficient4xPOW3(0.0) vrf_cool_eir_ratio_boundary.setMinimumValueofx(15.0) vrf_cool_eir_ratio_boundary.setMaximumValueofx(24.0) # Cooling Energy Input Ratio Modifier Function of High Temperature Curve vrf_cool_eir_f_of_high_temp = openstudio_model.CurveBiquadratic(model) vrf_cool_eir_f_of_high_temp.setName('vrf_cool_eir_f_of_high_temp') vrf_cool_eir_f_of_high_temp.setCoefficient1Constant(-1.4395110176) vrf_cool_eir_f_of_high_temp.setCoefficient2x(0.1619850459) vrf_cool_eir_f_of_high_temp.setCoefficient3xPOW2(-0.0034911781) vrf_cool_eir_f_of_high_temp.setCoefficient4y(0.0269442645) vrf_cool_eir_f_of_high_temp.setCoefficient5yPOW2(0.0001346163) vrf_cool_eir_f_of_high_temp.setCoefficient6xTIMESY(-0.0006714941) vrf_cool_eir_f_of_high_temp.setMinimumValueofx(15.0) vrf_cool_eir_f_of_high_temp.setMaximumValueofx(23.9) vrf_cool_eir_f_of_high_temp.setMinimumValueofy(16.8) vrf_cool_eir_f_of_high_temp.setMaximumValueofy(43.3) # Cooling Energy Input Ratio Modifier Function of Low Part-Load Ratio Curve vrf_cooling_eir_low_plr = openstudio_model.CurveCubic(model) vrf_cooling_eir_low_plr.setName('vrf_cool_eir_f_of_low_temp') vrf_cooling_eir_low_plr.setCoefficient1Constant(0.0734992169827752) vrf_cooling_eir_low_plr.setCoefficient2x(0.334783365234032) vrf_cooling_eir_low_plr.setCoefficient3xPOW2(0.591613015486343) vrf_cooling_eir_low_plr.setCoefficient4xPOW3(0.0) vrf_cooling_eir_low_plr.setMinimumValueofx(0.25) vrf_cooling_eir_low_plr.setMaximumValueofx(1.0) vrf_cooling_eir_low_plr.setMinimumCurveOutput(0.0) vrf_cooling_eir_low_plr.setMaximumCurveOutput(1.0) # Cooling Energy Input Ratio Modifier Function of High Part-Load Ratio Curve vrf_cooling_eir_high_plr = openstudio_model.CurveCubic(model) vrf_cooling_eir_high_plr.setName('vrf_cooling_eir_high_plr') vrf_cooling_eir_high_plr.setCoefficient1Constant(1.0) vrf_cooling_eir_high_plr.setCoefficient2x(0.0) vrf_cooling_eir_high_plr.setCoefficient3xPOW2(0.0) vrf_cooling_eir_high_plr.setCoefficient4xPOW3(0.0) vrf_cooling_eir_high_plr.setMinimumValueofx(1.0) vrf_cooling_eir_high_plr.setMaximumValueofx(1.5) # Cooling Combination Ratio Correction Factor Curve vrf_cooling_comb_ratio = openstudio_model.CurveCubic(model) vrf_cooling_comb_ratio.setName('vrf_cooling_comb_ratio') vrf_cooling_comb_ratio.setCoefficient1Constant(0.24034) vrf_cooling_comb_ratio.setCoefficient2x(-0.21873) vrf_cooling_comb_ratio.setCoefficient3xPOW2(1.97941) vrf_cooling_comb_ratio.setCoefficient4xPOW3(-1.02636) vrf_cooling_comb_ratio.setMinimumValueofx(0.5) vrf_cooling_comb_ratio.setMaximumValueofx(2.0) vrf_cooling_comb_ratio.setMinimumCurveOutput(0.5) vrf_cooling_comb_ratio.setMaximumCurveOutput(1.056) # Cooling Part-Load Fraction Correlation Curve vrf_cooling_cplffplr = openstudio_model.CurveCubic(model) vrf_cooling_cplffplr.setName('vrf_cooling_cplffplr') vrf_cooling_cplffplr.setCoefficient1Constant(0.85) vrf_cooling_cplffplr.setCoefficient2x(0.15) vrf_cooling_cplffplr.setCoefficient3xPOW2(0.0) vrf_cooling_cplffplr.setCoefficient4xPOW3(0.0) vrf_cooling_cplffplr.setMinimumValueofx(1.0) vrf_cooling_cplffplr.setMaximumValueofx(1.0) # Heating Capacity Ratio Modifier Function of Low Temperature Curve Name vrf_heat_cap_f_of_low_temp = openstudio_model.CurveBiquadratic(model) vrf_heat_cap_f_of_low_temp.setName('vrf_heat_cap_f_of_low_temp') vrf_heat_cap_f_of_low_temp.setCoefficient1Constant(0.983220174655636) vrf_heat_cap_f_of_low_temp.setCoefficient2x(0.0157167577703294) vrf_heat_cap_f_of_low_temp.setCoefficient3xPOW2(-0.000835032422884084) vrf_heat_cap_f_of_low_temp.setCoefficient4y(0.0522939264581759) vrf_heat_cap_f_of_low_temp.setCoefficient5yPOW2(-0.000531556035364549) vrf_heat_cap_f_of_low_temp.setCoefficient6xTIMESY(-0.00190605953116024) vrf_heat_cap_f_of_low_temp.setMinimumValueofx(16.1) vrf_heat_cap_f_of_low_temp.setMaximumValueofx(23.9) vrf_heat_cap_f_of_low_temp.setMinimumValueofy(-25.0) vrf_heat_cap_f_of_low_temp.setMaximumValueofy(13.3) vrf_heat_cap_f_of_low_temp.setMinimumCurveOutput(0.515151515151515) vrf_heat_cap_f_of_low_temp.setMaximumCurveOutput(1.2) # Heating Capacity Ratio Boundary Curve Name vrf_heat_cap_ratio_boundary = openstudio_model.CurveCubic(model) vrf_heat_cap_ratio_boundary.setName('vrf_heat_cap_ratio_boundary') vrf_heat_cap_ratio_boundary.setCoefficient1Constant(58.577) vrf_heat_cap_ratio_boundary.setCoefficient2x(-3.0255) vrf_heat_cap_ratio_boundary.setCoefficient3xPOW2(0.0193) vrf_heat_cap_ratio_boundary.setCoefficient4xPOW3(0.0) vrf_heat_cap_ratio_boundary.setMinimumValueofx(15) vrf_heat_cap_ratio_boundary.setMaximumValueofx(23.9) # Heating Capacity Ratio Modifier Function of High Temperature Curve Name vrf_heat_cap_f_of_high_temp = openstudio_model.CurveBiquadratic(model) vrf_heat_cap_f_of_high_temp.setName('vrf_heat_cap_f_of_high_temp') vrf_heat_cap_f_of_high_temp.setCoefficient1Constant(2.5859872368) vrf_heat_cap_f_of_high_temp.setCoefficient2x(-0.0953227101) vrf_heat_cap_f_of_high_temp.setCoefficient3xPOW2(0.0009553288) vrf_heat_cap_f_of_high_temp.setCoefficient4y(0.0) vrf_heat_cap_f_of_high_temp.setCoefficient5yPOW2(0.0) vrf_heat_cap_f_of_high_temp.setCoefficient6xTIMESY(0.0) vrf_heat_cap_f_of_high_temp.setMinimumValueofx(21.1) vrf_heat_cap_f_of_high_temp.setMaximumValueofx(27.2) vrf_heat_cap_f_of_high_temp.setMinimumValueofy(-944) vrf_heat_cap_f_of_high_temp.setMaximumValueofy(15) # Heating Energy Input Ratio Modifier Function of Low Temperature Curve Name vrf_heat_eir_f_of_low_temp = openstudio_model.CurveBiquadratic(model) vrf_heat_eir_f_of_low_temp.setName('vrf_heat_eir_f_of_low_temp') vrf_heat_eir_f_of_low_temp.setCoefficient1Constant(0.756830029796909) vrf_heat_eir_f_of_low_temp.setCoefficient2x(0.0457499799042671) vrf_heat_eir_f_of_low_temp.setCoefficient3xPOW2(-0.00136357240431388) vrf_heat_eir_f_of_low_temp.setCoefficient4y(0.0554884599902023) vrf_heat_eir_f_of_low_temp.setCoefficient5yPOW2(-0.00120700875497686) vrf_heat_eir_f_of_low_temp.setCoefficient6xTIMESY(-0.00303329271420931) vrf_heat_eir_f_of_low_temp.setMinimumValueofx(16.1) vrf_heat_eir_f_of_low_temp.setMaximumValueofx(23.9) vrf_heat_eir_f_of_low_temp.setMinimumValueofy(-25.0) vrf_heat_eir_f_of_low_temp.setMaximumValueofy(13.3) vrf_heat_eir_f_of_low_temp.setMinimumCurveOutput(0.7) vrf_heat_eir_f_of_low_temp.setMaximumCurveOutput(1.184) # Heating Energy Input Ratio Boundary Curve Name vrf_heat_eir_boundary = openstudio_model.CurveCubic(model) vrf_heat_eir_boundary.setName('vrf_heat_eir_boundary') vrf_heat_eir_boundary.setCoefficient1Constant(58.577) vrf_heat_eir_boundary.setCoefficient2x(-3.0255) vrf_heat_eir_boundary.setCoefficient3xPOW2(0.0193) vrf_heat_eir_boundary.setCoefficient4xPOW3(0.0) vrf_heat_eir_boundary.setMinimumValueofx(15.0) vrf_heat_eir_boundary.setMaximumValueofx(23.9) # Heating Energy Input Ratio Modifier Function of High Temperature Curve Name vrf_heat_eir_f_of_high_temp = openstudio_model.CurveBiquadratic(model) vrf_heat_eir_f_of_high_temp.setName('vrf_heat_eir_f_of_high_temp') vrf_heat_eir_f_of_high_temp.setCoefficient1Constant(1.3885703646) vrf_heat_eir_f_of_high_temp.setCoefficient2x(-0.0229771462) vrf_heat_eir_f_of_high_temp.setCoefficient3xPOW2(0.000537274) vrf_heat_eir_f_of_high_temp.setCoefficient4y(-0.0273936962) vrf_heat_eir_f_of_high_temp.setCoefficient5yPOW2(0.0004030426) vrf_heat_eir_f_of_high_temp.setCoefficient6xTIMESY(-5.9786e-05) vrf_heat_eir_f_of_high_temp.setMinimumValueofx(21.1) vrf_heat_eir_f_of_high_temp.setMaximumValueofx(27.2) vrf_heat_eir_f_of_high_temp.setMinimumValueofy(0.0) vrf_heat_eir_f_of_high_temp.setMaximumValueofy(1.0) # Heating Performance Curve Outdoor Temperature Type vrf_outdoor_unit.setHeatingPerformanceCurveOutdoorTemperatureType( 'WetBulbTemperature') # Heating Energy Input Ratio Modifier Function of Low Part-Load Ratio Curve Name vrf_heating_eir_low_plr = openstudio_model.CurveCubic(model) vrf_heating_eir_low_plr.setName('vrf_heating_eir_low_plr') vrf_heating_eir_low_plr.setCoefficient1Constant(0.0724906507105475) vrf_heating_eir_low_plr.setCoefficient2x(0.658189977561701) vrf_heating_eir_low_plr.setCoefficient3xPOW2(0.269259536275246) vrf_heating_eir_low_plr.setCoefficient4xPOW3(0.0) vrf_heating_eir_low_plr.setMinimumValueofx(0.25) vrf_heating_eir_low_plr.setMaximumValueofx(1.0) vrf_heating_eir_low_plr.setMinimumCurveOutput(0.0) vrf_heating_eir_low_plr.setMaximumCurveOutput(1.0) # Heating Energy Input Ratio Modifier Function of High Part-Load Ratio Curve Name vrf_heating_eir_hi_plr = openstudio_model.CurveCubic(model) vrf_heating_eir_hi_plr.setName('vrf_heating_eir_hi_plr') vrf_heating_eir_hi_plr.setCoefficient1Constant(1.0) vrf_heating_eir_hi_plr.setCoefficient2x(0.0) vrf_heating_eir_hi_plr.setCoefficient3xPOW2(0.0) vrf_heating_eir_hi_plr.setCoefficient4xPOW3(0.0) vrf_heating_eir_hi_plr.setMinimumValueofx(1.0) vrf_heating_eir_hi_plr.setMaximumValueofx(1.5) # Heating Combination Ratio Correction Factor Curve Name vrf_heating_comb_ratio = openstudio_model.CurveCubic(model) vrf_heating_comb_ratio.setName('vrf_heating_comb_ratio') vrf_heating_comb_ratio.setCoefficient1Constant(0.62115) vrf_heating_comb_ratio.setCoefficient2x(-1.55798) vrf_heating_comb_ratio.setCoefficient3xPOW2(3.36817) vrf_heating_comb_ratio.setCoefficient4xPOW3(-1.4224) vrf_heating_comb_ratio.setMinimumValueofx(0.5) vrf_heating_comb_ratio.setMaximumValueofx(2.0) vrf_heating_comb_ratio.setMinimumCurveOutput(0.5) vrf_heating_comb_ratio.setMaximumCurveOutput(1.155) # Heating Part-Load Fraction Correlation Curve Name vrf_heating_cplffplr = openstudio_model.CurveCubic(model) vrf_heating_cplffplr.setName('vrf_heating_cplffplr') vrf_heating_cplffplr.setCoefficient1Constant(0.85) vrf_heating_cplffplr.setCoefficient2x(0.15) vrf_heating_cplffplr.setCoefficient3xPOW2(0.0) vrf_heating_cplffplr.setCoefficient4xPOW3(0.0) vrf_heating_cplffplr.setMinimumValueofx(1.0) vrf_heating_cplffplr.setMaximumValueofx(1.0) # Defrost Energy Input Ratio Modifier Function of Temperature Curve vrf_defrost_eir_f_of_temp = openstudio_model.CurveBiquadratic(model) vrf_defrost_eir_f_of_temp.setName('vrf_defrost_eir_f_of_temp') vrf_defrost_eir_f_of_temp.setCoefficient1Constant(-1.61908214818635) vrf_defrost_eir_f_of_temp.setCoefficient2x(0.185964818731756) vrf_defrost_eir_f_of_temp.setCoefficient3xPOW2(-0.00389610393381592) vrf_defrost_eir_f_of_temp.setCoefficient4y(-0.00901995326324613) vrf_defrost_eir_f_of_temp.setCoefficient5yPOW2(0.00030340007815629) vrf_defrost_eir_f_of_temp.setCoefficient6xTIMESY(0.000476048529099348) vrf_defrost_eir_f_of_temp.setMinimumValueofx(13.9) vrf_defrost_eir_f_of_temp.setMaximumValueofx(23.9) vrf_defrost_eir_f_of_temp.setMinimumValueofy(-5.0) vrf_defrost_eir_f_of_temp.setMaximumValueofy(50.0) vrf_defrost_eir_f_of_temp.setMinimumCurveOutput(0.27) vrf_defrost_eir_f_of_temp.setMaximumCurveOutput(1.155) # set defrost control vrf_outdoor_unit.setDefrostStrategy('ReverseCycle') vrf_outdoor_unit.setDefrostControl('OnDemand') if vrf_cool_cap_f_of_low_temp is not None: vrf_outdoor_unit.setCoolingCapacityRatioModifierFunctionofLowTemperatureCurve( vrf_cool_cap_f_of_low_temp) if vrf_cool_cap_ratio_boundary is not None: vrf_outdoor_unit.setCoolingCapacityRatioBoundaryCurve( vrf_cool_cap_ratio_boundary) if vrf_cool_cap_f_of_high_temp is not None: vrf_outdoor_unit.setCoolingCapacityRatioModifierFunctionofHighTemperatureCurve( vrf_cool_cap_f_of_high_temp) if vrf_cool_eir_f_of_low_temp is not None: vrf_outdoor_unit.setCoolingEnergyInputRatioModifierFunctionofLowTemperatureCurve( vrf_cool_eir_f_of_low_temp) if vrf_cool_eir_ratio_boundary is not None: vrf_outdoor_unit.setCoolingEnergyInputRatioBoundaryCurve( vrf_cool_eir_ratio_boundary) if vrf_cool_eir_f_of_high_temp is not None: vrf_outdoor_unit.setCoolingEnergyInputRatioModifierFunctionofHighTemperatureCurve( vrf_cool_eir_f_of_high_temp) if vrf_cooling_eir_low_plr is not None: vrf_outdoor_unit.setCoolingEnergyInputRatioModifierFunctionofLowPartLoadRatioCurve( vrf_cooling_eir_low_plr) if vrf_cooling_eir_high_plr is not None: vrf_outdoor_unit.setCoolingEnergyInputRatioModifierFunctionofHighPartLoadRatioCurve( vrf_cooling_eir_high_plr) if vrf_cooling_comb_ratio is not None: vrf_outdoor_unit.setCoolingCombinationRatioCorrectionFactorCurve( vrf_cooling_comb_ratio) if vrf_cooling_cplffplr is not None: vrf_outdoor_unit.setCoolingPartLoadFractionCorrelationCurve( vrf_cooling_cplffplr) if vrf_heat_cap_f_of_low_temp is not None: vrf_outdoor_unit.setHeatingCapacityRatioModifierFunctionofLowTemperatureCurve( vrf_heat_cap_f_of_low_temp) if vrf_heat_cap_ratio_boundary is not None: vrf_outdoor_unit.setHeatingCapacityRatioBoundaryCurve( vrf_heat_cap_ratio_boundary) if vrf_heat_cap_f_of_high_temp is not None: vrf_outdoor_unit.setHeatingCapacityRatioModifierFunctionofHighTemperatureCurve( vrf_heat_cap_f_of_high_temp) if vrf_heat_eir_f_of_low_temp is not None: vrf_outdoor_unit.setHeatingEnergyInputRatioModifierFunctionofLowTemperatureCurve( vrf_heat_eir_f_of_low_temp) if vrf_heat_eir_boundary is not None: vrf_outdoor_unit.setHeatingEnergyInputRatioBoundaryCurve(vrf_heat_eir_boundary) if vrf_heat_eir_f_of_high_temp is not None: vrf_outdoor_unit.setHeatingEnergyInputRatioModifierFunctionofHighTemperatureCurve( vrf_heat_eir_f_of_high_temp) if vrf_heating_eir_low_plr is not None: vrf_outdoor_unit.setHeatingEnergyInputRatioModifierFunctionofLowPartLoadRatioCurve( vrf_heating_eir_low_plr) if vrf_heating_eir_hi_plr is not None: vrf_outdoor_unit.setHeatingEnergyInputRatioModifierFunctionofHighPartLoadRatioCurve( vrf_heating_eir_hi_plr) if vrf_heating_comb_ratio is not None: vrf_outdoor_unit.setHeatingCombinationRatioCorrectionFactorCurve( vrf_heating_comb_ratio) if vrf_heating_cplffplr is not None: vrf_outdoor_unit.setHeatingPartLoadFractionCorrelationCurve(vrf_heating_cplffplr) if vrf_defrost_eir_f_of_temp is not None: vrf_outdoor_unit.setDefrostEnergyInputRatioModifierFunctionofTemperatureCurve( vrf_defrost_eir_f_of_temp) return vrf_outdoor_unit