WEGER WALTER GMBH DIWER EVO DP80 Series, Installation And Operating Manual

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Installation and Operating Manual Page
33
Printed: 02/2015
6.6. Multi-leaf dampers
The position of the damper leaves is indicated by the notch on the leaf drive shaft. When the
leaves are closed, the notch is parallel to the damper frame.
Extra tight dampers for room classes H1, H2 and H3 must be equipped with two end position
switches.
Never drill through the damper, as this could damage the gear wheels, impairing the damper
function.
When the unit is switched on, the dampers must never be fully closed.
Direction of rotation of damper leaves
As the leaf pivot is off-centre, observe the direction of rotation of the leaves when installing
the damper leaf drive.
With incorrect direction of rotation, the damper cannot be fully closed and is therefore not
tight.
Adapter H for actuator motor
The adapter allows for the operation of the supplied damper leaves (bypass and recirculating
air) by means of a conventional rotary actuator motor installed in the air handling unit or a
duct. The maximum transferred torque is 20 Nm.
The adapter (with actuator motor) is screwed onto the baffle plate along the side wall of the
multi-leaf damper. For this purpose, a section of the damper flange is cut out so that the
adapter gear wheel can be installed and connected.