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Re: [EnergyPlus_Support] (unknown)



Change your cooling setpoint from 0 to say 25 degrees, or at a minimum 3 degrees. 
The concept is that a deadband of a minimum 3 degrees Celsius so that the heating and cooling do not "battle"...
Your current cooling setpoint will try to keep the zone at 0 degrees Celsius, so would run all the time and the heat would run to keep the zone at 19.14 Celsius. 
If you are wanting to have no cooling than set your cooling to 100 rather then 0. With your cooling setpoint at either 100, 25 or 23 degrees your file will run.

I have attached are some charts I made to show this for another project that you might find useful.. attached
Best-



Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions
120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951
  






On Thu, Nov 8, 2012 at 6:29 PM, <cgomez0000@xxxxxxxxx> wrote:
 

Can anyone understand the error message that is below?  I am not sure where to make a change to my file or how.  Thank you so much!
Carla

Sent from my iPhone

On Nov 8, 2012, at 5:47 PM, Carla Gomez <cgomez0000@xxxxxxxxx> wrote:

 

I am trying to running batch file schedules in the HVACtemplateIdealLoadsAirSystem.  I get one severe error below and I am not sure how to correct for this error.  Can someone assist?
Carla

   ** Severe  ** DualSetPointWithDeadBand: Effective heating set-point higher than effective cooling set-point - increase deadband if using unmixed air model
   **   ~~~   ** occurs in Zone=G SW APARTMENT During Warmup & Sizing, Environment=CHICAGO_IL_USA HEATING 99.6% CONDITIONS, at Simulation time=01/21 00:00 - 00:15
   **   ~~~   ** LoadToHeatingSetPoint=-2116.867, LoadToCoolingSetPoint=-15751.306
   **   ~~~   ** Zone TempDepZnLd=712.53
   **   ~~~   ** Zone TempIndZnLd=15751.31
   **   ~~~   ** Zone Heating ThermostatSetPoint=19.14
   **   ~~~   ** Zone Cooling ThermostatSetPoint=0.00
   **   ~~~   ** Zone HeatingSetPointOffset=0.00
   **   ~~~   ** Zone CoolingSetPointOffset=0.00
   **  Fatal  ** Program terminates due to above conditions.




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