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Negative cooling infiltration load

We're running lots of simulations and are finding some homes have negative cooling loads. We've narrowed that down to negative infiltration, shell conduction, and ventilation loads (natural and mechanical combined).

It's only a small subset of our modeled homes, but enough to make me say hmmm.

Is that expected behavior? If not, what would be causing this?

Thank you!

Negative cooling infiltration cooling load

We're running lots of os-hpxml simulations and are finding some homes have negative annual cooling loads. We've narrowed that down to negative infiltration, shell conduction, and ventilation loads (natural and mechanical combined).

It's only a small subset of our modeled homes, but enough to make me say hmmm.

Is that expected behavior? If not, what would be causing this?

Thank you!

Negative cooling load

We're running lots of os-hpxml simulations and are finding some homes have negative annual cooling loads. We've narrowed that down to negative infiltration, shell conduction, and ventilation loads (natural and mechanical combined).

It's only a small subset of our modeled homes, but enough to make me say hmmm.

Is that expected behavior? If not, what would be causing this?

Thank you!

Negative cooling load

We're running lots of os-hpxml simulations and are finding some homes have negative annual cooling loads. We've narrowed that down to negative infiltration, shell conduction, and ventilation loads (natural and mechanical combined).

It's only a small subset of our modeled homes, but enough to make me say hmmm.

Weather file is USA Denver Lowry AFB. Sourced from: https://climate.onebuilding.org/WMO_Region_4_North_and_Central_America/USA_United_States_of_America/index.html#IDCO_Colorado-

I have the hpxml model for a sample building. You can find it on google drive here: https://drive.google.com/file/d/108qI682WRnnFfcRLgglylqMv89CvGXGJ/view?usp=sharing

Is that expected behavior? If not, what would be causing this?

Thank you!