Chain drive in smoke and heat extraction systems

What is the danger

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.

Requirements breached

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 taken

1. Replacement of the defective chain drive Voluntary measuresTaken by: ManufacturerIn force from: 10 January 2023
2. Warning consumers of the risks Voluntary measuresTaken by: ManufacturerIn force from: 10 January 2023
3. Recall of the product from end users Voluntary measuresTaken by: ManufacturerIn force from: 10 January 2023

Product

Description

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.

Brand

D+H Mechatronic AG

Model / type

DDS 54KA 34KA 34-KKA 54KA 66-TWKA 66-TW-KKA54-KSHD 54VKA 44

Batch

01.05.2022 - 30.11.2022