Geniox user manual

Table Of Contents
Speed control for rotor and assembly of divided rotor |
10-6
down and stop for another 10 seconds. The process is repeated again and again, until the DIP switch is set back to
position OFF.
Change of rotation direction to enable perfect function of purge section
With purge section in the air handling unit, the rotation direction of the rotary heat exchanger is important. The
direction of the rotor must move the area of the rotor with polluted extract air to the area of the air handling unit with
clean outdoor air to enable clean outdoor air to pass through the rotor via the purge section to the exhaust air. Clean
outdoor air replaces the polluted extract air inside the rotor before the main flow of outdoor air passes through the
rotor as supply air to the rooms.
The rotation direction is tested at the factory for every air handling units that is delivered with installed drive controller
and drive motor.
In case of replacement at the building site, the installer can change drive direction of the motor by installing motor
cables in other terminals at the drive controller, because all drive motors from Systemair are 3–phase motors.
Brake of rotation
If DIP switch 4 is set to ON, the brake function is activated. When the motor is stopped and the brake function is
activated, the motor is blocked by shortening the windings.
Note:
This brake function is only to be activated a few minutes for cleaning or maintenance.
10.2.1.3 Description of purge function for the rotary heat exchanger
When the rotor has been stopped for 30 minutes the drive motor will be started to run at 10 RPM for 12 seconds. After
this time the rotor will be stopped again. The sequence is repeated after 30 minutes of inactivity.
If the rotor is stopped for a long period of time and still with air flow, the half of the rotor in the extract air flow will be
more polluted and hereby more heavy than the half of the rotor in the outdoor air flow with the consequence that the
drive motor via the drive belt will not be able to drive the rotor.
output | 11