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Hello everyone,

I'm currently doing an internship in the field of energy modeling and I'm using DesignBuilder. I'm not very familiar with it, so please forgive me if this question seems basic.

I need to model a room where the HVAC system is a split system with separate mechanical ventilation. The mechanical ventilation only introduces outdoor air without any extraction. However, there is a VMC (Ventilation Mécanique Contrôlée) in the bathroom. Does anyone know how I can model this?

I used the detailed HVAC system and the pre-defined HVAC: VRF with HR and DOAS. The problem is that the Air Handling Unit includes a mechanical exhaust. If I remove the pump for the mechanical exhaust in the detailed HVAC, will this be sufficient to model an HVAC system with no extraction? Additionally, I need to model the VMC, and I thought I could use the mechanical exhaust for this, but I can't find a way to specify the extracted airflow.

Thanks for your time.

Hello everyone,

I'm currently doing an internship in the field of energy modeling and I'm using DesignBuilder. I'm not very familiar with it, so please forgive me if this question seems basic.

I need to model a room where the HVAC system is a split system with separate mechanical ventilation. The mechanical ventilation only introduces outdoor air without any extraction. However, there is a VMC (Ventilation Mécanique Contrôlée) in the bathroom. Does anyone know how I can model this?

I used the detailed HVAC system and the pre-defined HVAC: VRF with HR and DOAS. The problem is that the Air Handling Unit includes a mechanical exhaust. If I remove the pump for the mechanical exhaust in the detailed HVAC, will this be sufficient to model an HVAC system with no extraction? Additionally, I need to model the VMC, and I thought I could use the mechanical exhaust for this, but I can't find a way to specify the extracted airflow.

Thanks for your time.