[EnergyPlus_Support] Re: Understanding HVACTemplate:System:Unitary Operation

["jj_milburn" <jj_milburn@xxxxxxxxx>]

I think I found a solution, AvailabilitySchedule:NightCycle seems to have an option for temperature tolerance.  I'll see how that works out.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "jj_milburn" <jj_milburn@...> wrote:
>
> Hello,
> 
> I'm  trying to understand how the HVACTemplate:system:unitary, defined with a dx:singlespeed cooling coil, works to meet the setpoints I specify.  From my reported output, it looks like the zone in question is meeting its setpoint almost exactly every hour (to 0.001 degrees).  
> 
> I know in reality this is not how a central air system works; with more of a "margin" before it kicks on and off.  Essentially:
> 
> A) How do I tell when the dx:singlespeed coil is kicking on and off, so I can tell if it is cycling too fast?
> 
> B) If possible, can I modify the margin of the HVAC cooling system so that if I set the room setpoint to 70, with a "margin" of 2, it will kick on at 72, and cool till 68, then wait till it gets larger again.
> 
> Thanks for your assistance.  If you could point me to any resources related to this that would be great as well.  Just trying to fully understand how a central air system in E+ is modelled.
>




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