Format Wega-BT Grad 1 Bedienungs- Und Montageanleitung Seite 11

OPERATING AND MOUNTING INSTRUCTIONS
Built-in safe Wega-BT Grade 1 as per EN 1143-1
• Make sure that the floor opening, in which the floor safe is to be set, does not have
smooth walls. The more uneven the recess is, the better the concrete anchors to the walls.
Tip: When chiselling out, creating a slightly wedge-shaped form with a wider back wall
makes it even more difficult to pull out the safe.
• The outer sheet metal joints can be sealed on all sides to protect against moisture
penetrating into the safe interior. Use a suitable permanently elastic spray agent such as
silicone.
• The walls of the safe should be braced with e.g. squared lumber to prevent them from
bending inwards while they are being set in concrete.
3.3 Producing the concrete mix
The concrete used should correspond to strength class C30/37.
You will need the following materials:
• Portland cement e.g. CEM I 32.5
• Gravel or grit with a grain size 0-32 mm
Mix 3 parts gravel and 1 part cement and mix it with water to create a slightly creamy
concrete mixture. This must not become too liquid.
Use a drum concrete mixer to guarantee a constant concrete quality. The concrete should
flow slightly when poured. This means that major compaction work during filling is not
necessary; light poking or prodding with a stick is recommended.
3.4 Installation
• To install the floor safe, place it in the recess in the floor and align it. As the floor safe is quite
heavy, it must be wedged well. Always check the correct installation position with a spirit
level. After aligning and wedging, the safe door must move easily when opening and closing.
Tip: In order to ensure a uniform concrete underlay of at least 100 mm, we recommend
that the floor safe be set to small – at least 100 mm high – metal profiles (e.g. an angle
profile, a T-profile or a U-profile).
• Close the safe door and cover the top of the floor safe (door, door frame and the
door gap) with foil so that it is waterproof to protect it from contamination during the
construction phase.
• Carefully fill in the concrete layer by layer into the cavities around the safe. Whilst doing
so, compact the concrete to ensure that no bubbles or cavities are created. This can
be achieved by poking and prodding with a stick. Make sure that the concrete has also
spread under the safe. The concrete must reach the top edge of the door frame of the
floor safe. The 100 mm high shaft on the floor safe must not be filled with concrete. The
shaft is used for height compensation for the floor construction (flow screed, insulation,
floor covering or similar) on the concrete surface.
• When filling with concrete, the safe door should remain closed and only be opened again
after at least 48 hours (concrete curing time).
3.5 Finishing
At the earliest 48 hours after the wall safe has been installed, the formwork can be removed
and the safe door opened. Wipe up any moisture inside the safe and allow the safe to dry
out. After the concrete has hardened, you can level out small holes or unevenness with
plaster or filler.
EN
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