Cable laying, empty ducts, flush-mounted boxes
Cable laying, empty ducts
Guide the empty duct/connection cable into the mounting sleeve at one of the 4 predetermined breaking points provided.
Position of the predetermined breaking points for the line feedthrough (arrows).
4 predetermined breaking points openings with uncut mounting sleeve. Large predetermined breaking point for line feedthrough on façade side. 3 small predetermined breaking points for line feedthrough on wall/interior of the building.
Observe symbols/pictograms on the mounting sleeve.
- Use the nearest predetermined breaking point. If possible, use one of the 3 rear predetermined breaking points.
- Front predetermined breaking point for external wall-side line feedthrough, for example for external wall insulation.
ATTENTION: Drill the front predetermined breaking point "A" to a max. depth of 25 to 30 mm. If the hole is too deep, this causes damage to the condensate drain → Building damage due to water ingress. Ensure airtightness.
- Drill through the desired predetermined breaking point in the mounting sleeve (Ø 20 mm).
- Lay empty duct(s) up to the installation location.
- Install the mounting sleeve as described in the following chapters.
- Insert the empty duct(s) lightly into the mounting sleeve.
- Feed the connection cable into the mounting sleeve by the sufficient length.
Difficult line feedthrough with external wall connection, as 90° elbow directly after predetermined breaking point. Carefully feed in the cable.
- Seal the empty duct(s)/connection duct with PU adhesive foam towards the mounting sleeve.
Placement of flush-mounted boxes
Networks with star, line and ring topology permitted. Carry out wiring in flush-mounted box.
When using more than 2 ventilation units, we recommend installing the room air control in a deep electronic switch box, to be provided by the customer. This provides sufficient space for connection of the cables of several unit pairs.
Avoid the following:
- Disbalances, which arise from different lengths of control cable. Observe installation requirements relating to cable lengths and types.
- Incorrect measured values, for example due to an unsuitable installation location of the control and external sensors or due to interference such as direct sunlight.