Thanks Richard, but E+ is still crashing. Here is what I added/changed beyond the normal air loop. (I also added the schedule for the set point and the performance curves). Did I overlook something?
Coil:Cooling:DX:SingleSpeed,
Top Core Precool Coil, !- Name
ALWAYS_ON, !- Availability Schedule Name
AUTOSIZE, !- Rated Total Cooling Capacity {W}
AUTOSIZE, !- Rated Sensible Heat Ratio
4.56651, !- Rated COP
AUTOSIZE, !- Rated Air Flow Rate {m3/s}
Top Core Outdoor Air, !- Air Inlet Node Name
Top Core Treated Outdoor Air, !- Air Outlet Node Name
PSZ-AC:1_CoolCStandard10Ton_CapFT, !- Total Cooling Capacity Function of Temperature Curve Name
PSZ-AC:1_CoolCStandard10Ton_CapFF, !- Total Cooling Capacity Function of Flow Fraction Curve Name
PSZ-AC:1_CoolCStandard10Ton_EIRFT, !- Energy Input Ratio Function of Temperature Curve Name
PSZ-AC:1_CoolCStandard10Ton_EIRFFF, !- Energy Input Ratio Function of Flow Fraction Curve Name
PSZ-AC:1_CoolCStandard10Ton_PLR, !- Part Load Fraction Correlation Curve Name
ContinuousFanWithCyclingCompressor; !- Supply Air Fan Operating Mode
AirLoopHVAC:UnitaryCoolOnly,
Top Core Precool Sys, !- Name
ALWAYS_ON, !- Availability Schedule Name
Top Core Outdoor Air, !- DX Cooling Coil System Inlet Node Name
Top Core Treated Outdoor Air, !- DX Cooling Coil System Outlet Node Name
Top Core Treated Outdoor Air, !- DX Cooling Coil System Sensor Node Name
Coil:Cooling:DX:SingleSpeed, !- Cooling Coil Object Type
Top Core Precool Coil, !- Cooling Coil Name
None, !- Dehumidification Control Type
Yes, !- Run on Sensible Load
No; !- Run on Latent Load
AirLoopHVAC:OutdoorAirSystem:EquipmentList,
Top Core OA Equipment, !- Name
AirLoopHVAC:UnitaryCoolOnly, !- Component 1 Object Type
Top Core Precool Sys, !- Component 1 Name
OutdoorAir:Mixer, !- Component 2 Object Type
Top Core Mixing Box; !- Component 2 Name
OutdoorAir:Mixer,
Top Core Mixing Box, !- Name
Top Core Mixed Air, !- Mixed Air Node Name
Top Core Treated Outdoor Air, !- Outdoor Air Stream Node Name
Top Core Relief Air, !- Relief Air Stream Node Name
Top Core Return Air; !- Return Air Stream Node Name
SetpointManager:Scheduled,
Top Core OA Pretreat, !- Name
Temperature, !- Control Variable
OA Pretreat Sched, !- Schedule Name
Top Core Treated Outdoor Air; !- Setpoint Node or NodeList Name
Thanks again; I would appreciate any help.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad <RRaustad@...> wrote:
>
> Use the AirLoopHVAC:UnitaryCoolOnly object in the place where you put
> the DX cooling coil. The DX coil is part of the
> AirLoopHVAC:UnitaryCoolOnly object. Control it with a scheduled set
> point manager.
>
> superbluescooter24 wrote:
> >
> >
> > Hey,
> > I'm trying to condtion outside air before it reaches the mixing box of
> > the air loop. Is there any way to accomplish this with a DX cooling
> > coil? After trying to add a Coil:Cooling:DX:SingleSpeed before the
> > outdoor air stream of the mixing box, E+ crashed. Any advice?
> > Thanks!!!
> >
> >
>
> --
> Richard A. Raustad
> Senior Research Engineer
> Florida Solar Energy Center
> University of Central Florida
> 1679 Clearlake Road
> Cocoa, FL 32922-5703
> Phone: (321) 638-1454
> Fax: (321) 638-1439 or 1010
> Visit our web site at: http://www.fsec.ucf.edu
>
> UCF - From Promise to Prominence: Celebrating 40 Years
>
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