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Zonally Controlled Exhaust - Duco IQ-unit Snelle Start

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1B.
With zonally (= locally) controlled exhaust, stale air is exhausted only
where necessary, which is conducive to optimum energy-efficiency and
quietness in the ventilation system. This requires a component to be
provided for each zone that acts as a control valve to regulate the ex-
haust air flow rate in that zone. This can be done by providing an Intelli
Air Valve — Duco's smart control valve — in the duct of each zone, or
using another component with actuator control if the maximum flow
rate through an Intelli Air Valve is insufficient, such as a DucoGrille
Close.
Master
Slave
* Connection between IQ-unit and fan (via PWM) is only applicable when using a non-pressure-
controlled fan.
78

Zonally controlled exhaust

*
PWM

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