10
System maintenance
REMEMBER TO SWITCH OFF THE POWER BEFORE
OPENING THE UNIT.
Filters
When the filter timer reaches the set value for a filter
replacement, this will appear in the text in the Optima
Touch display or be indicated by a yellow, flashing light on
the Optima Basic. This means that the filters must be
replaced/cleaned.
The system is stopped at the system switch or the switch
at the switchboard. The filter flaps are opened as indicated
and the filters removed. When the filters have been
cleaned/replaced, the front doors are closed and the filter
alarm can now be reset. The system then returns to normal
operation.
If you want to replace the filters with a different time
interval, this can be done via the user menu.
Do not vacuum or clean at high air pressure. This will
damage the filter!
Condensate drain
In connection with the filter replacement carried out before
the autumn, check the condensate drain for any clogging
with dirt, and check whether there is water in the water
trap. The water trap cannot dry out because, due to the
negative pressure of the unit, air will be sucked into the unit
and the unit will not be able to get rid of the condensate.
Pour 1 litre of water into the condensate tray and see if it
drains unhindered. If the condensate drain is not working,
there is a risk of water damage to the home.
Countercurrent heat exchanger
Inspect the countercurrent heat exchanger. If it is dirty,
take it out and wash it in warm soapy water and then rinse
it, e.g. in the bathroom using the shower head.
The heat exchanger plates must be handled carefully.
They have sharp edges and must not be damaged.
Fan
Check the two fan wheels for dirt. If they are dirty, they can
be cleaned with a brush, bottle washer, etc.
Supply and extract valves
Clean the valves by wiping them with a dry cloth. Make sure
that the valve does not rotate and thus cause a change in
the air volume.
Important:
When reinstalling the front plate on the ventila-
tion unit, do not use power tools to tighten the bolts, as this
may result in damage to the threaded connections. Careful-
ly tighten all the front-plate bolts until the plate is firmly
seated on the cabinet of the ventilation unit.
Optimal initial adjustment of the system
Genvex recommends that the ventilation unit should be
adjusted by an authorised Genvex dealer before commissi-
oning.
Before starting the initial adjustment, make sure that the
six points in the section on inspection and initial adjust-
ment have been completed. Then start the unit:
Set the initial basic ventilation value, which is speed 2. To
reduce energy consumption as much as possible, first
adjust the main air volumes to the desired air volume by
adjusting the speed of the fans via the control panel.
Then adjust the supply and extract valves with air measu-
ring equipment (during initial adjustment of the valves,
remember to lock them and to rotate the baffle in the
supply valves so that the air blows in the right direction).
Then check the main air volumes again and precisely adjust
the main air volumes using the fresh air and extract air
valves (remember to lock the valves in position after initial
adjustment).
