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Re: [EnergyPlus_Support] Coil controls for multiple zones





It's more important to understand why the cooling coil is active. Since a cooling coil is not scheduled off in a real system, and works just fine, there must be something in the simulation causing the cooling coil to turn on.

In this case, a single heating setpoint manager is controlling both coils. Try using two different set point managers to control each coil. One for heating and the other for cooling.

Use report variables to diagnose system operation. Node temperatures and set points, and coil heat transfer or enrgy reporting to know when a coil is on, will help to see what is happening.

On 7/16/2015 7:28 AM, carlosochoam@xxxxxxxxx [EnergyPlus_Support] wrote:

Dear all,


I have a simple model with two zones, served by a single DX cooling coil and a single gas heating coil, with outdoor air.


The desired performance is that the cooling coil will be off during winter, on during summer.


However, results show the cooling coil to be operating for the two zones during winter. The heating coil works as desired.


The two coils have relevant schedules indicating summer and winter behavior. I have AvailabilityManager:Scheduled pointing to a schedule of the whole system on during day, off during night. There is also a SetpointManager:SingleZone:Reheat for each zone. The setpoint node is the heating node outlet (the last one before it connects to the splitter).


Can anybody help to point out the correct way to specify the operation


-- 
Richard Raustad
Florida Solar Energy Center
1679 Clearlake Road
Cocoa, FL 32922
Ph: (321)638-1454
http://www.fsec.ucf.edu/en/

Program Director
Electric Vehicle Transportation Center
http://evtc.fsec.ucf.edu/


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Posted by: Richard Raustad <rraustad@xxxxxxxxxxxx>


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