Controller:WaterCoil

asked 2025-01-08 15:35:26 -0600

updated 2025-01-08 16:07:54 -0600

I have done quite a bit of diving through the questions. This question is similar to "Find Root Simple Controller: Controller Water Coil Error" question, however, I do not understand the responses, so I was not able to implement the solution to that question. Unlike that question, this system uses a CentralHeatPumpSystem with ChillerHeaterPerformance:Electric:EIR modules.

Here is the error I am getting. It is repeated for each Controller:WaterCoil.

** Severe  ** FindRootSimpleController: Controller error for controller = "CONTROLLER HOT WATER COIL 3"
**   ~~~   **  Environment=RUN PERIOD 1, at Simulation time=01/01 00:00 - 00:10
**   ~~~   **   Controller function is inconsistent with user specified controller action = Normal action
**   ~~~   **   Actuator will be set to maximum action
**   ~~~   ** Controller control type=Temperature
**   ~~~   ** Controller temperature setpoint = 11.95 [C]
**   ~~~   ** Controller sensed temperature = -2.53 [C]
**   ~~~   ** Controller actuator mass flow rate set to 2.09 [kg/s]
**   ~~~   ** Controller actuator temperature = -8.06 [C]
**   ~~~   ** The entering hot water temperature (controller actuator temperature) should be above the setpoint temperature

I tried adjusting the action of the controller from normal to reverse, but this did not remove the error. Any ideas on why this temperature difference is so great between the temperature setpoint and the sensed temperature? How would I implement a setpoint manager for this? Any other ideas to solve this error?

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