Installation of ER-UPB housing

The following are not permitted:

• Second room connection with an ER 60 fan insert (all models).
• Second room connection in combination with Centro exhaust air elements.
• Connecting a WC odour extraction unit in combination with Centro exhaust elements.
• Use of an ER fan or Centro exhaust air element in the bathroom or toilet room, if other rooms in the apartment are to be vented with the same unit at the same time.