Central Vacuum Installation

Installing a socket in a STUD WALL

Ideally vacuum sockets are installed in stud walls (i.e. walls with a timber frame which is covered with plasterboard), so that the pipe connected to the socket runs within the wall. See diagram on left. These fittings have a fitted depth of between 75 & 90mm.

NB Secure the socket box to the studwork with 2 screws through the side of the box as shown above. Box MUST NOT FLOAT inside stud wall.

If the fitting is set too far back into the wall, an extension piece can be used between the socket & any socket fitting. It extends the spigot on the back of socket up to an extra 25mm.

Extension piece

Installing a socket in a SOLID WALL

If the wall is solid, leave (or make) a channel in the brickwork in order to accommodate this arrangement - see diagram on right.

Other socket installations

Sometimes, it is not possible to run the pipe within the wall as shown in the above diagrams. In this instance, use a socket fitting with straight adaptor to run through to the back of the wall. Two arrangements are shown below using a separate sharp 90 degree knuckle bend which should be fitted as close to the vacuum socket as possible. See pictures below. This is important as it is this bend which will prevent long thin objects from entering the system and possibly causing a blockage. If an object does get stuck in this bend, one must be able to retrieve it from the vacuum socket.

The greater the depth of the wall, the further the bend is from the socket & the more difficult it will be to retrieve any object which does become stuck in the bend. When using this fitting in a thick wall, (more than 300mm) it is better to use a 90 degree Tee with a removable inspection plug (below left) instead of the 90 degree elbow so that access to the bend is from behind the wall, not through the socket.

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