Maico ER GH AP, Installation And Operating Instructions Manual

Page: 10 / 28

8 Mounting preparations
10
8.1 Requirements in line with ap-
proval
8.1.1 Approval provisions
Approval provision ER-APB ER-AP
Number of units per
floor, residential unit
or fire zone Max. 3
fans or 3
connec-
tions
Max. 2 fans
or 2 connec-
tions
Shaft wall min. 35
mm , board
materials
(F90) min. 35 mm ,
board mater-
ial, any
Connection ducts in-
side the shaft
AFR 80 flexible alu-
minium duct
between the
main duct in the shaft and
unit, max. 2 m long (→ ap-
proval).
Connection ducts
outside the shaft
Steel fol-
ded spiral-
seams
duct
,
between
the main
duct in the
shaft and
the unit,
max. 2 m
long (→
approval).
Steel folded
spiral-seams
duct or flex-
ible alu-
minium duct
,
between the
main duct in
the shaft and
the unit, max.
2 m long (→
approval).
Duct elbows in the
unit connection duct Max. 90° bend,
ascending
Number of duct el-
bows permitted for
wall installation Max. 1 x
90° Max. 2 x 90°
Number of duct el-
bows permitted for
ceiling installation Max. 2 x
90° Max. 3 x 90°
Regulating equip-
ment in the exhaust
air duct Not permitted
Wall/ceiling opening
for DN 80 unit con-
nection duct Brickwork or concrete:
130 mm.
Board materials (F90):
Outer Ø of pipe
8.2 Permissible installation positions
for AP and APB fans
Wall installation, top left corner of room
Wall installation, top right corner of room
Ceiling installation
8.3 ER-APB: Preparations for installa-
tion with fire protection require-
ments
NOTICE Damage to unit, malfunctioning in the
event of corrosion damage from mortar.
Wrap ventilation ducts, connected to the unit,
with a suitable adhesive tape to protect against
corrosion inside the brickwork, e.g. using cold-
shrink tape.