DoorBird A1121 Serie Manual De Instalación página 7

4
ASSEMBLING THE MOUNTING HOUSING
The product is available as a surface-mounted, flush-mounted and retrofit version. In the flush-mounted
version, the front panel is slightly larger to better cover the hole in the wall, and the mounting housing
(backbox) is made entirely of metal instead of plastic.
In the retrofit version, the front panel is slightly larger to better cover the hole in the existing panel and the
mounting is not realized with a separate mounting housing (backbox) but with metal clamps.
Flush-mounted model
138,00 mm
5.43 in
68,00 mm
2.68 in
68,00 mm
If you use the flush-mounted housing, lever up the
wall accordingly.
2.68 in
If you must drill holes in a wall, insert screws into a wall or lever up a wall, ensure that no cables or mains
(gas, water, etc.) are to be found in the wall.
If the wall of the house is made of wood, dowels are not normally required. There are special dowels for
assembling the device on an insulating wall, e.g. Fischer insulating dowels.
Retrofit model
If you use the retrofit version, cut an appropriate
hole in the existing panel.
If the wall of the house is not made of wood, you
should drill dowel holes 5 mm (0.19 in) in diameter
in the wall according to the drilling template and
then place the dowels provided into the boreholes.
15 cm
5.91 in
8,5 cm
3.35 in
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