Wilo Wilo-Sevio AIR, Installation And Operating Instructions Manual, Page: 28 / 39

62 WILO SE 11/2012 Ed.03 DIN A5
English INSTALLATION
1. Check whether the aerator group is complete and resting horizontally on the base sup -
ports. It may be necessary to adjust the height of some base supports.
2. Use the elastic bands to secure the aerator pipes to the base support. The elastic bands
are hooked into the support using the eyelets.
Important: If the ambient temperature is below 15 °C, it is recommended that the
elastic bands be placed in warm water before installation. This allows the elastic to
be more easily stretched and simplifies installation.
3. Use the second pipe clamp to secure the air distributor. Fit this onto the anchor rod, put
on a flat washer, and screw on two hexagon nuts per anchor rod. The pipe clamp is se -
cured using the bottom hexagon nut; the attachment is secured using the top hexagon
nut (locknut).
5.4.9. Installation of the drainage line (supplied by the customer)
Fig. 10.: Connecting the drainage line
1 Connection for the drainage line
Once the aerator group has been completely installed, the drainage line needs to be
connected. The drainage connection is located at the end of the pipe system, or, in case
of aerator systems that are not connected, the drainage connection is located on the air
distributor.
The drainage line must be attached outside of the basin and equipped with a valve.
5.4.10. Installing the disc aerators with customer-supplied aerator systems
If the aerator system has already been provided by the customer, only the disc aerators
can be installed. To do this, it is only necessary to drill the connection holes into the
existing pipe system. The corresponding drilling diagram can be found in the included
drilling plan.
Fig. 11.: Installing the disc aerators
1. Clean the pipes.
2. Mark the boreholes according to the included drilling plan. The minimum distance be -
tween two connection holes may not be smaller than 800 mm.
3. Drill the connection holes:
• Size: 20 mm; +5/-0 mm
• Horizontal tolerance: ±5°
• Vertical tolerance: ±1°
4. Fit the disc aerator onto the pipe. Ensure that the connection of the disc aerator is com -
pletely inserted into the connection hole.