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Re: [EnergyPlus_Support] Problem with UpdateZoneSizing: Heating supply air temperature
Hi Marco,
Now that your Sizing:system object is correct, the componants won't be sized to a ridiculously huge airflow as calculated by the sizing:zone object. E+ could look at adjusting the current warning which would only be relevant when the sizing:system object is sizing on sensible loads, i.e. taking the Sizing:Zone calculated airflow rates and applying them to all the componants for sizing. Just ignore the warning. Or use the flow/limit option in the sizing:zone object and see if that makes a difference.
Mit freundlichen Grü�en- Sent from my iPhone (excuse the brevity)
i. A.
Jean Marais
b.i.g. bechtold
Tel. +49 30 6706662-23
On 02.05.2014, at 19:43, Marco Aldegheri <<mailto:m.aldegheri@xxxxxxxxx>m.aldegheri@xxxxxxxxx> wrote:
>
> Well, I did a bit of confusion... this schedule is wrong.
> I didn't understand if the 1st one is correct, what about the definition of summerdesignday and winterdesignday? They are not explicit in the time definition... Is that the problem?
>
>
> On Friday, May 2, 2014 4:40 PM, Marco Aldegheri <<mailto:m.aldegheri@xxxxxxxxx>m.aldegheri@xxxxxxxxx> wrote:
> But in this way, the winterdesignday and the summer design day should be included in each periods... a schedule like this one could be better?
>
> Schedule:Compact,
> P4:P4%A2Zn1k Heating Setpoint Schedule, !- Name
> Temperature, !- Schedule Type Limits Name
> Through: 22 Apr, !- Field 1
> For: SummerDesignDay, !- Field 2
> Until: 24:00, !- Field 3
> -50, !- Field 4
> For: WinterDesignDays AllOtherdays, !- Field 2
> Until: 07:00, !- Field 3
> 16, !- Field 4
> Until: 08:00, !- Field 5
> 20, !- Field 6
> Until: 12:00, !- Field 7
> 16, !- Field 8
> Until: 14:00, !- Field 9
> 20, !- Field 10
> Until: 19:00, !- Field 11
> 16, !- Field 12
> Until: 23:00, !- Field 13
> 20, !- Field 14
> Until: 24:00, !- Field 15
> 16, !- Field 16
> Through: 8 Oct, !- Field 17
> For: SummerDesignDay, !- Field 2
> Until: 24:00, !- Field 3
> -50, !- Field 4
> For: WinterDesignDays AllOtherdays, !- Field 2
> Until: 07:00, !- Field 3
> 16, !- Field 4
> Until: 08:00, !- Field 5
> 20, !- Field 6
> Until: 12:00, !- Field 7
> 16, !- Field 8
> Until: 14:00, !- Field 9
> 20, !- Field 10
> Until: 19:00, !- Field 11
> 16, !- Field 12
> Until: 23:00, !- Field 13
> 20, !- Field 14
> Until: 24:00, !- Field 15
> 16, !- Field 16
> Through: 8 Oct, !- Field 17
> For: AllDays, !- Field 18
> Until: 24:00, !- Field 19
> -50; !- Field 20
> On Friday, May 2, 2014 4:10 PM, Jean Marais <<mailto:jeannieboef@xxxxxxxxx>jeannieboef@xxxxxxxxx> wrote:
>
possibly...AllDays includes the winter and the summer designdays which sets the setpoint at -50. heating setpoints less than 0 get rounded to 0 by the program as per the idd.
>
>
> 2014-05-02 15:54 GMT+02:00 Marco Aldegheri <<mailto:m.aldegheri@xxxxxxxxx><mailto:m.aldegheri@xxxxxxxxx>m.aldegheri@xxxxxxxxx>:
>>
>>
>>
>> Well Jean, you explainaition was really clear.
>>
>> Anyway, about the setpoint schedule manager, it was created by DesignBuilder.
>> I would remember you that I have only heating.
>>
>> For each zone I find that in E+ a dualsetpoint is created like this:
>>
>> !- =========== ALL OBJECTS IN CLASS: ZONECONTROL:THERMOSTAT ===========
>>
>> ZoneControl:Thermostat,
>> P0:P0%A1Zn5i Thermostat, !- Name
>> P0:P0%A1Zn5i, !- Zone or ZoneList Name
>> 48, !- Control Type Schedule Name
>> ThermostatSetpoint:DualSetpoint, !- Control 1 Object Type
>> P0:P0%A1Zn5i Dual SP; !- Control 1 Name
>>
>> where
>>
>> ! Schedule: Control type schedule: Always 4
>> Schedule:Compact,
>> 48, !- Name
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