Ideal Loads Air System doesn't meet thermal comfort requirement - Unmet Hours

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Ideal Loads Air System doesn't meet thermal comfort requirement

asked 3 years ago

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!

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 ( 3 years ago )

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

Liza Lee ( 3 years ago )

1

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

sashadf1 ( 3 years ago )

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answered 3 years ago

Keigo
4401 ●1 ●51 ●25 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: 3 years ago

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Last updated: Jul 28 '21

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