Chain drive in smoke and heat extraction systems

Drive
Chain drive for opening and closing windows in the façade and roof. The product has a plate indicating its production date as year (Y) month (M) day (D): "xx.xxx.xx / xxxxxxx / YYYYMMDD / xxxxxxxx". All chain drives of types identified above and produced from 01.05.2022 to 30.11.2022 are concerned.
Type / model number: 
DDS 54
KA 34
KA 34-K
KA 54
KA 66-TW
KA 66-TW-K
KA54-K
SHD 54
VKA 44
Batch number: 
01.05.2022 - 30.11.2022
Made in: 
Germany
Risk: 

A low quality cog (not hardened) has been installed in the chain drive. Under stress, it can break, hence the chain drive may no longer be able hold the smoke/heat extraction valve/window, and in the absence of other safety mechanisms installed, the valve/window can fall onto bystanders and injure them. The product does not comply with the Construction Products Regulation nor with the requirements of the General Product Safety Directive nor with the European standard EN 12101-2.

Measures: 

Voluntary measure: Manufacturer > Warning consumers of the risks
Starting date: 10/01/2023
Voluntary measure: Manufacturer > Replacement of the defective chain drive
Starting date: 10/01/2023
Voluntary measure: Manufacturer > Recall of the product from end users
Starting date: 10/01/2023

Alert report: