Re: [EnergyPlus_Support] Overlapping heating and cooling control temps in radiant system

[Jean Marais <jeannieboef@xxxxxxxxx>]

No no no. The Heating and Cooling Setpoint Schedules give the temperature at which heating or cooling will start. If you have a cooling SP of 16, it means cooling will start as soon as the room (air) temp rises above 16. That's why your htg and clg SPs are wrong...you're starting to cool at a lower temp than when you start to heat!

2013/10/8 <saraperna123@xxxxxxxx>

 

Hi!I have severe error with the radiant variable system: I created two control temperature schedules, one for heating (35°C) and one for cooling (16°C) but when It continues giving me this fatal error. Consider that the heating/cooling heat pump gives inlet water at 45°C in winter and 14°C in summer.

 

  ..... Last severe error=Overlapping heating and cooling control temps in radiant system: PIANOPRIMO:U123%124%125%126%127 HEATED FLOOR

   ************* Warning:  Node connection errors not checked - most system input has not been read (see previous warning).

   ************* Fatal error -- final processing.  Program exited before simulations began.  See previous error messages.

thanks a lot

Sara

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