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Ideal Loads Air System doesn't meet thermal comfort requirement

asked 2021-07-27 09:59:25 -0500

Liza Lee
85 ●5

Hi, I'm having this problem with Ideal Loads Air System.

Everything seems all right, it's an office building, HVAC system is available when there is occupancy. I had "Zone Thermal Comfort ASHRAE 55 Simple Model Summer or Winter Clothes Not Comfortable Time" output. And it shows it's still uncomfortable even the HVAC is on.

What did I do wrong, why the ideal loads air system didn't meet the loads?

I will be very thankful if anyone can tell me the answer. Thanks!

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Comments

Have you set Humidification Setpoint and selected Defumidification Control Type in HVACTemplate:Zone:IdealLoadsAirSystem? Or have you set ZoneControl:Humidistad and selected Defumidification Control Type in ZoneHVAC:IdealLoadsAirSystem? If not, the Ideal Loads Air System will not dehumidify and will not satisfy the thermal comfort.

If the climate is very dry, you may need to humidify (please add Humidifer:Steam:Electric or Humidifer:Steam:Gas).

Keigo ( 2021-07-27 10:38:35 -0500 )edit

yeah, i didn't set those. Must be the humidity. Thank you so much

Liza Lee ( 2021-07-27 21:26:04 -0500 )edit

1

Keigo your answer makes sense... should you post as an answer rather than a comment?

sashadf1 ( 2021-07-27 23:31:33 -0500 )edit

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answered 2021-07-28 00:15:39 -0500

Keigo
3699 ●1 ●43 ●21 https://www.linkedin.c...

The following is exactly the same as what I wrote in the comments.

Have you set Humidification Setpoint and selected Defumidification Control Type in HVACTemplate:Zone:IdealLoadsAirSystem? Or have you set ZoneControl:Humidistad and selected Defumidification Control Type in ZoneHVAC:IdealLoadsAirSystem? If not, the Ideal Loads Air System will not dehumidify and will not satisfy the thermal comfort.

If the climate is very dry, you may need to humidify (please add Humidifer:Steam:Electric or Humidifer:Steam:Gas).

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Asked: 2021-07-27 09:59:25 -0500

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Last updated: Jul 28 '21

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