Tertiary Ventilation and Air Treatment
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Tertiary Ventilation and Air Treatment Systems
Ventilación y Tratamiento del Aire Terciario con Alta Eficiencia Energética
Según RITE 2007, IT 1.1.4.2 Demanda de calidad del aire interior
Principio
En edificios con otros usos no residenciales, con el fin de limitar las pérdidas térmicas, la solución más eficaz es adaptar los flujos de renovación de aire a la ocupación real de los locales. De hecho, la tasa de ocupación (frecuencia de uso x tasa de llenado) de locales como oficinas o salas de reuniones es muy fiable.¿Cómo?
Utilizando las soluciones "llave en mano" bajo el RITE: • VISIOVENT (toda o poca ventilación) • VARIVENT (ventilación proporcional).VISIOVENT Ventilación "todo o poco" con detector de presencia DIP
Estas soluciones permiten un ahorro de hasta 35 en flujos de renovación de aire.
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Principio En la ocupación, durante un período de operación de ventilación, el flujo de las instalaciones corresponde a 10 del flujo nominal, este flujo comúnmente llamado "flujo de purga" está destinado al poste o pre-ventilación de los locales. En la ocupación se obtiene el caudal nominal gracias a la detección de presencia. Los caudales nominales están determinados por las regulaciones de RITE. |
Tenga en cuenta que un reloj debe cortar la ventilación por la noche, pero debe estar operativo de nuevo al menos una hora antes de que el sitio esté ocupado. |
VARIVENT Ventilación "proporcional" con receptor de CO2
Estas soluciones proporcionan ahorros que pueden ser 70 en flujos de renovación de aire.![]() |
Principio En la ocupación, el caudal corresponde a un 10 del caudal nominal, como en el sistema "todo o poco". En ocupación variable, el flujo de renovación de aire varía según el número de ocupantes [dependiendo de la tasa de dióxido de carbono (CO2). En ocupación máxima, pasa al caudal nominal. Los caudales nominales están determinados por las regulaciones de RITE. |
Tenga en cuenta que un reloj debe cortar la ventilación por la noche, pero debe estar operativo de nuevo al menos una hora antes de que el sitio esté ocupado. |
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SCHEME DE PRINCIPIOSMONOZONA: El ventilador controla una sola ubicación (por ejemplo: sala de reuniones). En "todo o poco" solución el ventilador debe garantizar 2 caudales (velocidad de flujo mínima y flujo nominal). En solución "proporcional", la velocidad del ventilador debe adaptarse a las condiciones reales de ocupación de las instalaciones. MULTIZONE: el ventilador controla varias instalaciones (por ejemplo, sala de reuniones + oficina). Con esta configuración, que puede ser "todo o poco" o "proporcional", los receptores o sondas actúan en los terminales (bocas, todos o pocos registros, registros proporcionales...) haciendo que el ventilador se adapte a las variaciones de la demanda. |
Ejemplo de instalación:


Ventilation and Treatment of Tertiary Air with High Energy Efficiency
According to RITE 2007, IT 1.1.4.2 Demand indoor air quality
Beginning
In buildings with other non-residential uses, in order to limit thermal losses, the most effective solution is to adapt air renewal flows to the actual occupation of the premises. Indeed, the occupancy rate (frequency of use x fill rate) of premises such as offices or meeting rooms is very reliable.How?
Using the "turnkey" solutions under the RITE: • VISIOVENT (all or little ventilation) • VARIVENT (proportional ventilation).VISIOVENT "All or little" ventilation with DIP presence detector
These solutions allow savings of up to 35 in air renewal flows.
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Beginning In in-occupancy, during a period of ventilation operation, the flow of the premises corresponds to 10 of the nominal flow, this flow commonly called "purge flow" is intended for the post or pre-ventilation of the premises. In occupancy the nominal flow rate is obtained thanks to presence detection. Nominal flow rates are determined by RITE regulations. |
Please note that a watch must cut off the ventilation at night, but must be operational again at least one hour before the site is occupied. |
VARIVENT "Proportional" ventilation with CO2 catcher
These solutions provide savings that can be 70 in air renewal flows.![]() |
Beginning In in-occupancy the flow rate corresponds to a 10 of the nominal flow rate, as in the "all or little" system. In variable occupancy the air renewal flow varies according to the number of occupants [depending on the rate of carbon dioxide (CO2). In maximum occupancy, it passes to the nominal flow rate. Nominal flow rates are determined by RITE regulations. |
Please note that a watch must cut off the ventilation at night, but must be operational again at least one hour before the site is occupied. |
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SCHEME OF PRINCIPLES MONOZONA: The fan controls a single location (example: meeting room). In "all or little" solution the fan must ensure 2 flow rates (minimum flow rate and nominal flow). In "proportional" solution, the fan speed must be adapted to the actual occupancy conditions of the premises. MULTIZONE: the fan controls several premises (e.g. meeting room + office). With this configuration, which can be "all or little" or "proportional", the catchers or probes act on the terminals (mouths, all or little records, proportional records ...) making the fan adapt to variations in demand. |
Installation example:

Ventilation and Treatment of Tertiary Air with High Energy Efficiency
According to RITE 2007, IT 1.1.4.2 Demand indoor air quality
Beginning
In buildings with other non-residential uses, in order to limit thermal losses, the most effective solution is to adapt air renewal flows to the actual occupation of the premises. Indeed, the occupancy rate (frequency of use x fill rate) of premises such as offices or meeting rooms is very reliable.How?
Using the “turnkey” solutions under the RITE: • VISIOVENT (all or little ventilation) • VARIVENT (proportional ventilation).VISIOVENT “All or little” ventilation with DIP presence detector
These solutions allow savings of up to 35 in air renewal flows.
![]() |
Beginning In in-occupancy, during a period of ventilation operation, the flow of the premises corresponds to 10 of the nominal flow, this flow commonly called “purge flow” is intended for the post or pre-ventilation of the premises. In occupancy the nominal flow rate is obtained thanks to presence detection. Nominal flow rates are determined by RITE regulations. |
Please note that a watch must cut off the ventilation at night, but must be operational again at least one hour before the site is occupied. |
VARIVENT “Proportional” ventilation with CO2 catcher
These solutions provide savings that can be 70 in air renewal flows.![]() |
Beginning In in-occupancy the flow rate corresponds to a 10 of the nominal flow rate, as in the “all or little” system. In variable occupancy the air renewal flow varies according to the number of occupants [depending on the rate of carbon dioxide (CO2). In maximum occupancy, it passes to the nominal flow rate. Nominal flow rates are determined by RITE regulations. |
Please note that a watch must cut off the ventilation at night, but must be operational again at least one hour before the site is occupied. |
![]() |
SCHEME OF PRINCIPLESMONOZONA: The fan controls a single location (example: meeting room). In “all or little” solution the fan must ensure 2 flow rates (minimum flow rate and nominal flow). In “proportional” solution, the fan speed must be adapted to the actual occupancy conditions of the premises. MULTIZONE: the fan controls several premises (e.g. meeting room + office). With this configuration, which can be “all or little” or “proportional”, the catchers or probes act on the terminals (mouths, all or little records, proportional records …) making the fan adapt to variations in demand. |
Installation example:
