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How to set the starting temperature inside the zone and the range of comfortable temperatures in design builder

I want my Zone to start at 22c and heat until the zone temperature is 26c then the sys switches off until the zone temperature is 22 and so on

designbuilderknowledge's avatar
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designbuilderknowledge
asked 2016-10-12 09:24:23 -0500, updated 2016-10-13 06:02:41 -0500
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Similar topic has been discussed here

Ivan Korolija's avatar
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Ivan Korolija
answered 2016-10-12 18:15:35 -0500
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Thank you for answering but is there a way to do it directly with designbuilder without exporting to energyplus.

designbuilderknowledge's avatar designbuilderknowledge (2016-10-13 01:14:20 -0500) edit

if i try using the Ems file for my case Schedule:Constant,Cycle,OnOff,1; ! New schedule object

AvailabilityManager:Scheduled, ! Updated Availability Manager Packaged Rooftop Air Conditioner Availability Manager, Cycle; EnergyManagementSystem:Sensor, AptTemp, Thermal Zone 1, Zone Mean Air Temperature;

EnergyManagementSystem:Sensor, hSP, Thermal Zone 1, Zone Thermostat Heating Setpoint Temperature;

EnergyManagementSystem:Actuator, AvailSCH_Overwrite, Cycle, Schedule:Constant, Schedule Value; EnergyManagementSystem:ProgramCallingManager, Supervision,

designbuilderknowledge's avatar designbuilderknowledge (2016-10-13 02:08:40 -0500) edit

BeginTimestepBeforePredictor, HVAC_uncontolledloop_Supervision; EnergyManagementSystem:Program, HVAC_uncontolledloop_Supervision, SET Toffset = 1.00, IF AptTemp > (hSP - 0.01) && AptTemp < (hSP + 0.01), SET AvailSCH_Overwrite = 0, ELSEIF AvailSCH_Overwrite == 0 && AptTemp >= (hSP - Toffset) && AptTemp <= (hSP + Toffset), SET AvailSCH_Overwrite = 0, ELSE, SET AvailSCH_Overwrite = 1, ENDIF;

designbuilderknowledge's avatar designbuilderknowledge (2016-10-13 02:08:52 -0500) edit

I get severe errors and its not simulating

designbuilderknowledge's avatar designbuilderknowledge (2016-10-13 02:09:39 -0500) edit

I think DesignBuilder has EMS module (although in Beta version) link

Regarding the severe error I am not sure I can help just by seeing your code. You can switch on EMS outputs to check what your code does at each timestep.

Ivan Korolija's avatar Ivan Korolija (2016-10-13 02:24:50 -0500) edit
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