RE: [EnergyPlus_Support] Large Reheat Consumption During Summer

Dear Langdon.

The text “AHU HEATING COIL CONTROLLER” does not appear in your IDF, so I can’t figure out what is referred to by the error. In addition, the IDF is difficult to read because of the many interspersed comments.

I recommend that you begin using the newest version, so it can be opened by the IDF Editor. Transition of your IDF to the current version is almost a one click affair!

The Building Performance Team
James V. Dirkes II, P.E., LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Langdon Alger
Sent: Friday, October 15, 2010 8:58 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Large Reheat Consumption During Summer

Hello,

I am running multiple simulations using various building configurations and I have run into the problem in my results which I can't determine the cause for.

I get low natural gas consumption in the winter months and high consumption during the summer due to the reheat system. I am using an old version of EnergyPlus which I hope is not a problem.

I do get a Severe error in my simulations which occurs multiple times:

Severe ** Controller error for controller = AHU HEATING COIL CONTROLLER
** ~~~ ** Occurrence info=EDMONTON STONY PLAIN AB CAN WYEC2-B-25145 WMO#=711230, 08/06 04:02 - 04:03
** ~~~ ** Controller function is inconsistent with user specified controller action = "" action
** ~~~ ** Actuator will be set to minimum action
** ~~~ ** Note: Chilled water coils should be reverse action and the entering chilled
** ~~~ ** water temperature should be below the setpoint
** ~~~ ** Note: Hot water coils should be normal action and the entering hot
** ~~~ ** water temperature should be above the setpoint

I have attached the simulation file I am working with and the weather file.

Thank you for your help.

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