CFDM fire dampers are diaphragms in ducted ventilation systems that prevent the spread of fire and products of combustion from one fire segment to another by closing the air duct at points of fire separation structures. The damper diaphragm automatically closes the air duct with a closing spring.
BZZ backflow prevention device
The BZZ damper prevents uncontrolled air flow in the opposite direction when the ventilation system is switched off.
The BZZ backflow prevention device is designed to automatically close the cross-section of circular ventilation ducts and prevents uncontrolled reverse air flow when the ventilation system is switched off. The blades of the non-return flap open under the pressure caused by the air flow and are closed by return springs.
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The BRF 125 airtight backflow prevention damper is installed inside the ventilation duct. It effectively prevents undesirable backflow of air.
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Aircycle 5.1 is a continuous running heat recovery unit, transfers heat from humid air extracted from wet rooms to warm incoming fresh air which is ducted to habitable rooms. Thanks to the easy-to-fit air distribution system each single ambient can be properly ventilate: the boost function enables rapid extract of increased moisture or pollutant levels. It also provides discrete installation and very quite operation. Suitable for large houses.