External cover

Only mount external cover once the external plastering is complete. Only use stainless steel screws when mounting stainless steel external covers.

Formation of surface rust: External factors (e.g. air containing sulphur dioxide or salt, dust containing iron etc.) may cause surface rust to form on stainless steel. We recommend thoroughly cleaning unpainted stainless external covers before installation (remove dust and fingerprints) and rub in a little oil (e.g. care oil for stainless steel).