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openstudio space level schedule set not overwriting space type template

asked 2020-07-20 15:34:42 -0500

xchen gravatar image

updated 2020-07-20 15:35:41 -0500

Hi I'm using v2.8.1 openstudio and noticed that if I apply a different default schedule set at the space, it is not overwriting the schedule set inherited from the space types.

Is there a way to use different load schedule for a few spaces other than creating a new space type template? Or do I have to delete the space type template and assign loads individually?

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answered 2020-07-21 11:03:07 -0500

updated 2020-07-22 11:49:31 -0500

@xchen, There are two approach for this.

  1. Open option as you suggest is to make a new space type, but this can be pretty straight forward and still easy to work with. As an example if you have a classroom you can clone the class room to make an art room or computer lab. Initially the cloned space type will share all the same resources like schedules and load definitions. If you change the electric equipment in special classroom to use a new definition and or schedule, lighting and occupancy will still be linked. So if you change the occupancy definition in the future it will be linked to both space types and will change all of those spaces.
    1. If you really want to maintain a single classroom space type another option is to remove the the load that you want to be unique from the space type and then add that load instance to all of the spaces with that space type assigned. Now you can either inherit the electric equipment schedule from the space type or you can assign a schedule set to the space, or schedule directly to the load instance itself (can have unique schedules or multiple electric equipment instances directly assigned to a space.

The screenshots below show something similar to option 2, but I left an electric equipment in the space type definition and added an an second electric equipment object to some spaces. In the top space it uses a schedule from the kitchen, because I assigned the kitchen schedule set to the space. The next space uses the schedule set from the space type. The third space doesn't include the custom electric equipment load at al.

Hope this helps

View of space tab in loads sub-tab image description

View of space tab in properties sub tab. Looking at the screenshot above notice how the first space's space assigned load uses the schedule from the schedule set assigned to the space. The second space's space assigned load relies on the space type for the schedule, since the space and the load instance itself do not specify a different schedule to use. image description

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When you clone your space type, if you go that direction, clone it using the space types tab, by selecting the space type and clicking the "x2" button. Dragging in the same space type from the library won't have the same outcome; it will instead results in unique load definition and schedule instances that are not linked together.

David Goldwasser gravatar imageDavid Goldwasser ( 2020-07-21 11:06:11 -0500 )edit

thanks David. I actually tried the method in the second screen shot, assigning a different default schedule set to the space. But in the report, i notice that the schedules in those rooms are not overwritten. This was my originally question, because i would assume this schedule at the space tab would overwrite whatever schedule from space type. Is this the correct understanding?

xchen gravatar imagexchen ( 2020-07-22 19:03:34 -0500 )edit

@xchen You have to perform the tasks from both screenshots. That is, add load instance directly to space and add schedule set to space, or directly to space load instance. I understand the confusion as the inheritance differs from default construction sets, where you can add an assignment to the space that overrides the default set. Our inheritance diagram doesn't tell the whole story. Think of a space type as a fixed definition that can't be altered within a space but can be extended.

David Goldwasser gravatar imageDavid Goldwasser ( 2020-07-23 11:13:52 -0500 )edit

got it. In my case, my building Level 1 has a different operating schedule than the upper levels, but the peak loads are the same. I ended up creating new space types for all level-1 spaces. Yes I got the idea from overwriting the schedule from the constructions sets.

xchen gravatar imagexchen ( 2020-07-27 18:46:36 -0500 )edit

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Asked: 2020-07-20 15:34:42 -0500

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Last updated: Jul 22