Use and Care Manual

www.ventilation-system.com
17
TECHNICAL MAINTENANCE
Maintenance of the ventilator means regular cleaning of the ventilator surfaces of dust and cleaning and replacement of the filters.
To access the basic assembly units follow the steps:
Turn off the unit using the remote control or the buttons on the indoor unit.
TwinFresh Expert Duo RA1-30
1. Press the latches on the side of the indoor control unit to take off the front part. Then open the latches and remove the front part of
the front panel. Remove the filters for cleaning. Reverse the above procedures to reassemble.
TwinFresh Expert RA1-50
1. Press the latches on the side of the indoor control unit to take off the front part.
Please make sure the thermal actuator rod is in lower position during re-installation of the front panel. If the thermal actuator
rod is up, please wait for about 2 minutes until it goes down.
While installing
the front panel the thermal
actuator rod must be
in low position.
2. Disconnect the socket from the circuit board. While removing the socket do not pull the wires. Uplift it with a flat screw driver of a
respective size.
Use a flat screwdriver to
disconnect the socket.
Do not pull the wires!
Disconnect the socket from
the circuit board.
Disconnect the socket from
the circuit board.
TwinFresh Expert RA1-50 TwinFresh Expert Duo RA1-30
WARNING! Never remove the control board! It may cause an alarm! After completion of the servicing and assembly of the
ventilation unit and re-installation of the socket reset an alarm following the procedure on page 16.
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