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Humidifying Setpoint Schedule

asked 2015-01-22 09:55:40 -0500

updated 2015-01-22 14:07:32 -0500

Dear all,

Does anybody have the problem of adding humidifying setpoint schedule?

I am simulating a 10-story building with air-side economizer (fixed dewpoint and dry bulb control) and would like to control the humidity in zone. I made a humidifying setpoint schedule and successfully added it to first 5 random zones (no matter that the zone is). However, when i was trying to add the schedule to other zones, it failed and the previous zones also lost the schedules. When I ran the model, there was also error saying all the zones were lack of humidify schedules. I don't know what's the problem, anybody has this experience? Thanks.

Best wishes,


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answered 2015-01-22 12:53:40 -0500

This is a bug in 1.5.0 which should be fixed in 1.6.0 due to be released soon. I would suggest removing all humidity objects in your model for now and wait to try it out in 1.6.0.

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1.6.0 is posted, but I'm concerned this might be something other than the issue@MatthewSteen reported and I fixed. Let us know if the issue persists.

Kyle Benne's avatar Kyle Benne  ( 2015-01-22 13:59:37 -0500 )edit

Hi Kyle, I'm using version 1.7.0 and am facing the exact same issue. I also cannot specify "humidifying setpoint schedule". Whenever I specify a schedule and click "apply to selected", the schedule disappears.

Moreover, I am trying to model an evaporative cooler and cannot find the option for specifying a humidistat, say e.g. "ZoneControl:humidistat".

Kindly help us out with this. Thank you in advance.

Rehan Khalid's avatar Rehan Khalid  ( 2015-06-28 16:47:06 -0500 )edit

answered 2015-08-16 10:18:44 -0500

When defining the schedules to be used by the humidistat be sure to define the unit type for the schedule as 'percent'. See this post for more details:

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Asked: 2015-01-22 09:55:40 -0500

Seen: 734 times

Last updated: Aug 16 '15