1
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** Warning ** GetHTSubSurfaceData: A Multiplier > 1.0 for window/glass door W_67_4_0_0_0_0
** ~~~ ** in conjunction with SolarDistribution = FullExterior or FullInteriorExterior
** ~~~ ** can cause inaccurate shadowing on the window and/or
** ~~~ ** inaccurate interior solar distribution from the window.
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The Lump similar windows on surface model option has been selected which causes DesignBuilder to use the EnergyPlus Window Multiplier option to speed up simulations. The message is warning that the Window Multiplier option, when used in conjunction with the Full exterior or Full interior and exterior calculation options can lead to inaccurate distributions of solar radiation around the room.
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2
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** Warning ** GetSurfaceData:The total number of floors, walls, roofs and internal mass surfaces in Zone 59
** ~~~ ** is < 6. This may cause an inaccurate zone heat balance calculation.
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This warning is often generated for pitched roofs and for interior zones separated by virtual partitions and can safely be ignored.
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3
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** Warning ** GetGroundTemps: Some values for "GroundTemperatures" fall outside the range of 15-25C.
** ~~~ ** These values may be inappropriate. Please consult the Input Output Reference for more details.
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The default ground temperatures used in DesignBuilder is 14degC. This may be inappropriate in some cases and EnergyPlus is warning about this. You should take care to enter realistic ground temperatures bearing in mind the advice given in the Ground Modelling section.
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4
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** Warning ** DXFOut: Could not triangulate surface="W_7469_0_0_1", type="Wall", check surface vertex order(entry)
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Caused by a minor bug in EnergyPlus when creating a DXF representation of the model - it is not always able to fully triangulate all surfaces and generate a full set of surfaces. You can ignore the message for the purposes of simulation results.
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5
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** Warning ** Base surface does not surround subsurface (CHKSBS), Overlap Status=No-Overlap
** ~~~ ** The base surround errors occurred 3 times.
** ~~~ ** Surface "W_7376_3_0_0" misses SubSurface "W_7376_3_0_0_0_0"
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These warnings are usually a reporting bug in EnergyPlus v.2.0 and earlier.
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6
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** Warning ** Calculated design cooling/heating load for zone=78474 is zero.
** ~~~ ** Check ZONE SIZING and ZONE CONTROL:THERMOSTATIC inputs.
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Cooling/heating may have been switched off in this zone or there is no cooling/heating load (i.e. the zone does not require any cooling/heating).
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7
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For a zone sizing run, there must be at least 1 Zone Sizing object input.
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Can usually be ignored.
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8
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** Severe ** CAUTION -- Interzone surfaces are usually in different zones
** ~~~ ** Surface=F_59604_10071_0_10046, Zone=59604
** ~~~ ** Surface=C_72917_1_0_0, Zone=59604
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This warning can be safely ignored. These messages can be prevented by switching on the Surfaces within zone treated as adiabatic option in Simulation Advanced Calculation Options
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9
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** Warning ** CAUTION -- Interzone surfaces are usually in different zones
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This warning will occur for partitions between 2 merged zones. Because of the merging, the zone is the same on both sides of the partition and EnergyPlus flags this as a potential mistake. To avoid this message, you can select the 'Surfaces within zone’ treated as adiabatic model option for Heating design, Cooling design and Simulation calculation options. In this case such partitions will instead be modelled using an adiabatic formulation where the ‘Outside face environment’ surface is the same as the actual surface and the warning is not generated. The warning can in any case be safely ignored.
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