The building material, size, shape, and number of floors all affect which central vacuum cleaner model should be selected. Fewer wall inlets are needed in a one-storey, simply formed house than for a several-storey, unsymmetrical house.
Installation phases
1. Decide whether you want to design and install the system yourself or hire an expert.
2. Design the system for your home.
3. Install the dust piping system, low voltage leads and mounting brackets. Support the pipes well.
4. Connect the starting circuits of the wall inlets and install the cover asseblies.
5. Install the central unit.
6. Check that the system works and that there are no leaks before closing the structures.
7. Install the cleaning equipment storage bracket(s).
8. Save your designs into the house folder.
9. Save the product labels and instructions into the house folder.

The wall inlets are positioned so that the system covers all spaces that need to be cleaned. The suction hose is either 8, 9, 10 or 12 metres long, depending on the contents of the cleaning equipment set. When planning the system, also consider the use of accessories, such as a preseparator or expandable hose. For the preseparator, a wall inlet can be positioned close to a fireplace, and the expandable hose may need to have a wall inlet in the kitchen or close to the utility room.

It is easiest to install the wall inlets in parting walls with timber or metal framed plate structures. The wall inlets can also be installed in masonry or cast parting walls. The wall inlets are usually installed level with light switches, or to the lower part of the wall, level with wall sockets. In new buildings, the piping system can also be installed within the concrete pourings or bars, but in this case, the connections need to be protected with adhesive tape and the pipes should be attached so that they cannot shift. The arrangement of the pipes in the pictures below is not correct, as the pictures are only intended to illustrate what the installation in various wall structures looks like.

