BZZ backflow prevention device
The BZZ damper prevents uncontrolled air flow in the opposite direction when the ventilation system is switched off.
Base plate with a PP connector
Base plate with a connector (optional). An element closing the bottom of the roof base equipped with a 100, 125, 160, 200 or 250mm-diameter connector.
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The TLS silencer is used in round ventilation ducts. As a standard, the silencers are delivered with a rubber seal. Inside they are filled with 50 mm thick mineral wool.
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CSR-B EC W, CSR-B EC Zero Plus W, CSR-B EC NFC W controller
Controllers of the CSR-B series are constant pressure regulators designed for cooperation with duct and roof fans with EC motors. By continuously controlling the fan speed, they ensure constant pressure in the ventilation ducting. Based on a PI controller, CSR-B controllers have the option to set a constant fan power and programmable upper and lower fan control limits.