Maico Centro-M-APB, Installation And Operating Instructions Manual, Page: 11 / 24

8 Mounting preparations
11
12 Main duct (steel folded spiral-seams
duct)
13 Spigot
14 Shaft wall
15 Ceiling compound
16 Floor ceiling
19 Steel threaded rod / stair bolt
20 Duct attachment
21 Duct clamp / clamping band
22 Steel folded spiral-seams duct
23 Wall/wall board seal
24 Suspended ceiling
25 Steel screws or steel blind rivets (3 of
each)
26 Steel duct bend
27.1 Anchor bolt / steel dowel
27.2 Metal expansion dowel
28 Retaining bolt with nut
29 Retaining bolt
30 Steel clamping band
Keep a maximum distance of 1.5 m between
the duct fastenings. It is essential to observe
the installation instructions: Mounting prepara-
tions [
} 9] .
Duct attachment with duct clamp,
alternatively duct attachment with clamping
band
Danger due to fire transmission
DANGER Danger to life due to fire trans-
mission if an incorrect connection duct is
used on the APB housing when installed in
the ceiling.
Always use steel folded spiral-seams ducts for
the connection.