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1
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© STULZ GmbH – all rights reserved EN/06.2021
air side connection
Upflow unit, front view
Upflow unit
• Connect the enclosed cable at the actuator
according to the enclosed manufacturer‘s
instructions.
• Place the assembly of adapter plate and
damper on the A/C unit.
• Provide opening (1) with a rubber grommet
from the accessory pack.
• Route the cable through opening (1) .
• Route the cable along the side panel and fix it
with cable holders as shown in the illustration.
• Feed the cable through opening (2) into the
E-box.
• Cut the cable to length and connect it accord
-
ing to the wiring diagram.
wArning
Risk of bruising of limbs
Do not insert fingers between the damper blades or near the gears.
The actuator rotates slowly, the running time from „fully open“ to „fully closed“ is 150 seconds.
The torque of the actuator is 20 Nm. Due to the geometry of the blades, a force of 660 N is generated during
closing when the blade ends of the damper are 20 mm apart from each other.
If you are trapped between the blades with an item
of clothing, press the release button (1).
This separates the motor from the gearbox and the
motor stops.
The release button can be locked by pressing the
button (1) and pushing the latch in the release but
-
ton sideways (2).
Now you can manually move the blades to the
desired position.
Press the button again (3) to release the lock.
Operation
The damper is controlled by the controller. When the A/C unit is started, the damper is opened.
A pre-runtime after which the fan starts can be set on the controller. When the A/C unit stops, the damper is
closed after the fan‘s overruntime has elapsed.
