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RE: [EnergyPlus_Support] Controller Error





Respectfully disagreeing ….  HVAC Cooling coils are always reverse action.  This is specified in the Controller:WaterCoil object (example below).  I do not recall all of the several ways that I have erred in order to receive this message, but I think improper setpoints are the most common.  Your 12.8C setpoint looks OK, but perhaps there is a zone setpoint that is improper?

 

 

James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504 USA
616 450 8653

 

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Alberto Hernandez Neto - USP
Sent: Monday, September 09, 2013 6:51 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: RES: [EnergyPlus_Support] Controller Error

 

 

Dear Ivan,

 

You should change the status of reverse action of the colling coil controller .

 

Regards,

 

Alberto Hernandez Neto

 

De: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] Em nome de Ivan Mezzacapa
Enviada em: domingo, 8 de setembro de 2013 12:48
Para: energyplus_support@xxxxxxxxxxxxxxx
Assunto: [EnergyPlus_Support] Controller Error

 





Hi!

 

i don't know how solve this problem. Someone could help me?

 

Thanks!!

 

 

** Severe  ** FindRootSimpleController: Controller error for controller = "FC-3P-A-01 COOLING COIL CONTROLLER"

   **   ~~~   **  Environment=Sao Paulo -TRY WMO#=, at Simulation time=01/16 08:00 - 08:15

   **   ~~~   **   Controller function is inconsistent with user specified controller action = "" action

   **   ~~~   **   Actuator will be set to maximum action

   **   ~~~   ** Controller control type=Temperature

   **   ~~~   ** Controller temperature setpoint = 12.80 [C]

   **   ~~~   ** Controller sensed temperature = 25.78 [C]

   **   ~~~   ** Controller actuator mass flow rate set to 4.27 [kg/s]

   **   ~~~   ** Controller actuator temperature = 26.10 [C]

   **   ~~~   **   Note: Chilled water coils should be reverse action and the entering chilled

   **   ~~~   **         water temperature (controller actuator temperature) should be below the setpoint temperature

   **   ~~~   **   Note: Hot water coils should be normal action and the entering hot

   **   ~~~   **         water temperature (controller actuator temperature) should be above the setpoint temperature

 

Técg. Ivan Mezzacapa


Projetista  de Ar Condicionado / Consultor em Eficiência Energética




Celular: (11)9963-9326








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