8 Mounting preparations
9
8 Mounting preparations
Suitable mounting material is to be
provided by the customer.
8.1 Requirements in line with ap-
proval
8.1.1 Approval provisions
Approval provision
Centro-APB
Number of units per floor, res-
idential unit or fire zone
Max. 3
fans or 3
connections
Shaft wall
min. 35 mm ,
board materials
(F90)
Connection ducts
inside
the
shaft
Steel folded
spiral-seams
duct
, between
the main duct in
the shaft and the
unit, max. 2 m
long (→ ap-
proval).
Duct elbows in the unit con-
nection duct
Max. 90° bend,
ascending
Number of duct elbows permit-
ted for wall installation
Max. 1 x 90°
Number of duct elbows permit-
ted for ceiling installation
Max. 2 x 90°
Regulating equipment in the
exhaust air duct
Not permitted
Wall/ceiling opening for DN 80
unit connection duct
Brickwork or
concrete: 130
mm.
Board materials
(F90): Outer Ø
of pipe
8.2 Permitted installation positions:
Wall installation, top left corner of room
Wall installation, top right corner of room
Ceiling installation