Under pressure damper for Vallox 15P-EC and 15P-ECH roof fans
Under pressure damper for Vallox 15P-EC and 15P-ECH roof fans
What do the letters DS and DPC mean in the Exxeo models?
These are model designations within the Vallox Exxeo roof fan range.
The DS model features an integrated dual-speed converter, making it suitable for replacing older two-speed AC roof fans.
The DPC model comes as standard with the capability for pressure control and airflow control, enabling energy-efficient and demand-controlled ventilation.
Which roof fan is suitable for renovation projects?
The Vallox Exxeo DS is a two-speed model designed for renovation applications.
The cable from the existing electrical distribution board (2 × three-phase supply + PE) is connected to the safety switch. This makes it possible to continue using the existing contactor control system and avoids the need to install a new cable.
What accessories can be installed on roof fans?
Vallox Exxeo roof fans can be equipped with a variety of accessories, including sensors for measuring outdoor temperature, duct air temperature, humidity, carbon dioxide (CO₂), and VOC compounds, as well as a time switch with enclosure for two-speed roof fan control and a potentiometer for 0-10 V control of the roof fan.
The basic Vallox Exxeo model can be equipped with an external temperature sensor, allowing the fan speed to be reduced when the outdoor temperature drops during winter, if necessary.
The DPC model can be fitted with two temperature sensors: one is used for outdoor air compensation, and the other is intended for air density correction based on duct air temperature.
Can a roof fan be connected to a Modbus network?
The Vallox Exxeo basic model and the DPC model are equipped with Modbus readiness directly in the fans, with the exception of the two smallest sizes.
Using the Modbus connection, it is also possible to control the two smallest exhaust fans through the control board.
Are roof fans available in different color options?
Yes, Vallox Exxeo roof fans can be factory-painted in the desired color, allowing the roof fan to blend more seamlessly with the building’s roof.
Where can I get help with designing a ventilation system that uses a roof fan?
Vallox Exxeo roof fans are available in the MagiCAD Cloud product database and can be used in AutoCAD and Revit software. In addition, the products are available in the Cadmatic HVAC software.
Vallox also provides its own ExxeoSelect selection and sizing software.
What should be taken into account when installing a roof fan?
The roof fan must be installed on the roof in such a way that maintenance procedures can be carried out safely. The unit is always supplied with an installation frame, which makes on-site installation of the roof fan easy.
All control equipment supplied with Exxeo roof fans is integrated and protected within its own enclosure behind the service hatch. A safety switch is always supplied pre-installed and pre-wired with the product.
How does a roof fan perform in different weather conditions?
Vallox Exxeo roof fans can be installed even in demanding climatic conditions. The zinc-magnesium coated steel sheet (corrosion category C4, painted C5) provides protection against corrosion and remains durable in all weather conditions.
Thanks to the unit’s design, rainwater is directed to the side of the unit, preventing water from flowing into the ductwork. In addition, the perforated roof cover protects the unit from leaves and other loose debris.
How is a roof fan maintained?
Vallox Exxeo roof fans are equipped with a tilting section, which allows the roof fan to be swung aside during maintenance.
Ensure that the power supply has been disconnected and that the impeller has come to a complete stop before touching the roof fan or fan components.
Any damaged parts must always be repaired or replaced using genuine spare parts.