Maico MDR 22 EC, Mounting And Operating Instructions, Page: 85 / 177

VENTILATOREN
FR
MDR .. EC
FIG UK
DE
the plug of the cable screw connections
[10] and open it according to the thickness
of the earth conductor. Lead the earth con -
ductor from below through the cable screw
connections [10] and grommet [15] up to
the stud bolt [16]. Close the cable screw
connection [10]. NOTICE: Ensure tightness –
otherwise moisture and risk of corrosion.
4. Connect flexible sleeve to the folded
spiral-seams duct.
NOTICE:
Ensure seal
integrity. For
MDR-PG variants
do not kink
tubes.
5. Screw the MDR roof flashing to the flat
roof (Fig. B, position [X]). Provide suitable
mounting material (4 screws, tightening
torque 20 Nm).
6. Complete "external earthing connection"
(Fig D). The required mounting material is
located on the stud bolts [16] Provide the
earth conductor with a cable lug (provided
by customer) and screw the earth con -
ductor to the stud bolt [16].
NOTICE:
For a
secure contact, place the tooth lock washer
under the cable lug, place the washer over
the cable lug and tighten with the lock nut