7
Sound-insulated ventilation
box ECR-A 12 to ECR-A 25/31
1. Scope of delivery
Complete ventilation box incl. terminal box.
Tension relief and cable screw-connections in
terminal box. Mounting and operating
instructions.
2. Warning symbols used
DANGER
Danger to life.
Non-observance can lead to
death or serious bodily injuries.
WARNING
Danger of injury.
Non-observance can lead to
serious bodily injuries
CAUTION
Danger of injury. Property
damage.
Non-observance can lead to
minor or more serious bodily
injuries or property damage.
3. Product information
Equipment overview, Figure A
1 Housing
2 Angle
plate
3 Terminal
box
4 Clip-locks
5 Housing
cover
6 Impeller
X Rating plate with air direction arrow
Product description
The ECR-A ventilation box is used to extract
air from commercial premises. Thanks to their
design with double-walled and sound-insul-
ated housing, these units are very quiet and
can even be used directly in day rooms.
The unit is installed in ventilation ducts – with
a connection on the inlet and outlet side with
a nominal size of between Ø 125 and Ø 250,
depending on the model.
The motor is designed for continuous opera-
tion. 3 speed levels can be set. These speed
levels are determined when the motor is
connected with the corresponding wiring (for
example, you can choose between 3 out of
4 possible speeds for the ECR supply air
box).
Acknowledgements:
© Maico Elektroapparate-
Fabrik GmbH. This instruction is a translation of
the German original operating instructions.
We are not responsible for mistakes or printing
errors and retain the right to make technical
modifications without giving prior notice.
GB