Zehnder Rittling ComfoAir 70, Руководство пользователя

Страница: 18 / 31

16
Graphics as an example for the connection of a back supply air ventilation tube
NOTE
When using the joining piece (“Convertor 90 to flat 51, bend 90°”), the connecting 51 flat duct must be routed in a
downward direction, and then only using a 90° angle (“Bend flat 51 H”) to the left or to the right. The reason for this is
the fixing point of the wall bracket, where the fixing point is not allowed to be located in the vicinity of the flat duct.
When mounting the unit on drywall or on an in-wall installation, use shorter screws or dowels with a maximum length of
35 mm.
Install the ventilation tubes air-tight at the designated connectors. For this purpose, use the recommended self-adhesive
sealing tape (accessory item), which must be stuck on the outside over the entire circumference of the connector.
For correct installation, the appropriate joining piece must protrude so far out of the wall so that the connector with the
attached sealing tape is inserted in the EPP housing section.
4.2.3.2 Side connection of the ventilation tube
If the ventilation tube is connected at the side, the pre-perforated external wall grille of the wall bracket must be removed.
To do this, cut the two web connections of the external wall grille with the wall bracket by rotating the grille around the axis
of the webs until the predetermined breaking point breaks.
Graphics as an example for the connection of a side supply air ventilation tube
CAUTION
Injury at sharp-edged predetermined breaking point of the web connections
After cutting out the external wall grille, carefully deburr the remaining material of the two web connections at the wall
bracket cut-out.
The corresponding connection piece must be pushed into the groove of the opening of the EPP housing section until the
sealing tape (for joining piece “Convertor 90/75 to flat 51”) or the lip seal (for joining piece “Comfotube 90 / DN100”) is
engaged.