Maico Centro-E, Installation And Operating Instructions Manual, Page: 6 / 12

8 Installation
6
1. Press the desired number of sealing plugs out
of the housing.
Centro-M with fixed air volume setting.
Centro-E and Centro-H with fixed air volume
setting for basic ventilation.
11 Spiral housing 12 Electronic circuit
board (control)
13 Housing floor
seal
38 Plaster protect-
ive cover
42 Connection ter-
minal
43 Optional fixing
with screws (to
be provided by
the customer)
44 Locking lever 45 Stud
2. Switch off mains fuse and fit warning sign
3. Remove plaster protective cover and clean
any dirt off the flush-mounted housing.
4. Ensure that the unit type ticked in the housing
box matches the type to be fitted.
5. Check ease of movement of shut-off shutter/
backflow preventer.
When installed, the shut-off shutter/backflow
preventer must close automatically. With ER-
UPD and ER-UPB, this must close automatic-
ally due to the pressure of the inserted yoke
spring (exception – upwards air outlet, see ER
UP/Centro main instructions). With ER-UPD
and ER-UPB ensure that the soldered strut is
inserted correctly, see ER UP/Centro main in-
structions).
6. Check that the housing floor seal is correctly
positioned, then insert properly.
NOTICE Risk of damage if ESD sensitive com-
ponents on the board are touched.
Avoid direct touching of the components or con-
tact surfaces.
NOTICE The noise level will increase if the
housing floor seal is fitted incorrectly. Degree
of protection not guaranteed if housing floor
seal is positioned incorrectly.
The housing floor seal must lie flat and without
any creases in the housing.
7. Check that all screw connections are tight.
8. Check ventilation ducts for dirt and clean if ne-
cessary.
9. Check that connection data matches the tech-
nical data on the unit (rating plate).
NOTICE Function will be impaired if fan insert
is not inserted correctly.
Ensure proper insertion in the locking hooks.
If the fan insert is not firmly seated, screw it to the
housing at the 3 positions shown in the figure
above. Suitable mounting material is to be
provided by the customer.
Note wiring diagrams in box base.
Cables must not prevent the unit from being slid
in.
Lever and stud must
engage.
If they do not, secure
screws through these
holes!
→ Installation information in unit
NOTICE Function will be impaired if spiral
housing is not inserted correctly.
Ensure proper insertion in the 3 fixing points.
10.Slide spiral housing evenly, in parallel, onto
both studs. Ensure that the two locking tabs of
the stud and the locking lever audibly engage
so spiral housing is secure.