DX-Assisted Ventilation Unit

As temperatures rise and climate change accelerates, the risk of overheating in buildings becomes an ever-growing concern. Traditional passive cooling methods may no longer suffice in some cases, necessitating the adoption of more active systems like Mixed Mode or DX-assisted ventilation.  This article focuses on DX-assisted ventilation.

DX-assisted ventilation is a mechanical-only system that supplies outdoor air to the building. When the outdoor air is not cool enough, the DX cooling coil provides supplementary cooling.

DesignBuilder offers two HVAC system specification options:

1. Simple HVAC
2. Detailed HVAC

To model DX-assisted ventilation units, the Detailed HVAC “component by component” modelling approach should be used, and this guide describes the process involved.

You can download the modelling guide by clicking on the attachment below.