Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
All of them can probably be discarded if not for the ground temperature one.
ModelToIdf Warnings:
**Warning**: *Both surfaces 'Surface 40', and 'Surface 27 reference the same construction 'Interior Wall' but it is not symmetric, creating a reversed copy.*
=> Two adjacent surfaces need to have layers in reversed order. Here the copy will be created for you. You can ignore it.
EnergyPlus Warnings:
**Warning** : *IP: Note -- Some missing fields have been filled with defaults. See the audit output file for details.*
In the out.audit file I see this:
***Warning** IP: IDF line~1976 Object=LIGHTS, name=189.1-2009 - OFFICE - CORRIDOR - CZ4-8 LIGHTS 1, entered with less than minimum number of fields.
* ~~~ * Attempting fill to minimum. * Add * 1.00000000000000 ! field=>Fraction Replaceable
=> The fraction replaceable will be set to 1. here's what it means:
If Daylighting:Controls or Daylighting:DELight:Controls is specified for the zone, this field is used as an on/off flag for dimming controls. If set to 0.0, the lights are not dimmed by the daylighting controls. If set to 1.0, the lights are allowed to be dimmed by the daylighting controls
If you have no daylight dimming controls, you can ignore that. If you do, think about whether they can all be dimmed or not...
**Warning**: *ProcessSchedulelnput: ScheduleTypeLimits='CONTROLMODE', Unit Type='CONTROLMODE' is invalid.*
**Warning**: *ProcessSchedulelnput: ScheduleTypeLimits=ΊΙΝΕARPOWERDENSITY", Unit Type="LINEARPOWERDENSITY" is invalid.*
**Warning**: *ProcessSchedulelnput: ScheduleTypeLimits='VOLUMETRICFLOWRATE", Unit Type=’VOLUMETRICFLOWRATE’ is invalid.*
=> This just means that your schedule won't be validated, so if you made a mistake E+ won't catch it. Basically, if you say that a schedule can only take values in the range [0:1] and you put 10 as a value, E+ would tell you, and here it won't.
In most cases you don't care about that.
**Warning**: *GetHTSurfaceData: Surfaces with interface to Ground found but no 'Ground Temperatures' were input.
Found first in surface =SURFACE 1 Defaults, constant throughout the year of (18.0) will be used.*
=> This is one that could matter quite a lot, especially if you have a low-rise building (for high rise buildings, the effect gets diluted a lot more). I suggest you read up on the Slab and Ground preprocessors in the Input/output reference guide. There are also previous questions on UnmetHours.
**Warning**: *CheckUsedConstructions: There are 4 nominally unused constructions in input.
For explicit details on each unused construction, use Output:Diagnostics,DisplayExtraWarnings;*
You can probably ignore that, E+ is just telling you that you defined stuff that you didn't assign, and maybe that's ok, maybe you forgot to assign them. It's very common when using OpenStudio to have more constructions, from templates, than needed.
I think E+ might be (or might have in the past?) calculating the conduction transfer function for these even if you don't use them, which would lead to (slightly) increased simulation time.
**Warning**: *Output:Meter: invalid Name='GAS:FACILITY' - not found.*
**Warning**: *Output:Meter: invalid Name='DISTRICTCOOLING:FACILITY' - not found.*
**Warning**: *Output:Meter: invalid Name='DISTRICTHEATING:FACILITY' - not found.*
=> OpenStudio adds ouput meters like this in order to produce the OpenStudio report. In your model you probably don't have natural gas, nor district cooling/heating, so E+ is just telling you you are requesting stuff that doesn't exists, but that's not a big deal.
