oPERATIoN
Maintenance, cleaning and care
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LWZ 130 | LWZ 130 Enthalpie |
43
EN
GL
ISH
Cooling/heating, heat recovery bypass
f
Set the bypass mode control according to the temperature.
Parameter
Effect
Cooling/heating Depending on the temperature, use the outdoor air for cool-
ing or heating.
Cooling
Summertime: Use cool outdoor air.
Heating
Spring and autumn: Use warm outdoor air.
Enable fan
You can switch off the fans at any time via the programming unit
menu, e.g. to deactivate ventilation if there is a fire.
Effect
Off The fans are disabled. The "Fan disable" symbol appears on the display.
On The fans are enabled.
4.5 Switching off the appliance
!
Material losses
If you interrupt the power supply to the appliance, check
that humidity protection is ensured for the building.
The appliance has no ON/OFF switch. Disconnect the power supply
at the fuse/MCB in the domestic distribution board.
5. Maintenance, cleaning and care
Maintenance by the user is limited to filter inspection and replace-
ment required at certain intervals.
5.1 Replacement filters
Product name Part
number
description Classification in
accordance with
ISO 16890
Quan-
tity
FMS G4-10 130/135 238923
Coarse particle
filter mat
ISO Coarse > 60 % (G4)
10
FMK M5-2 130/135 238924
Fine filter
ePM
10
≥ 50 % (M5)
2
FMK F7-2 130/135
238925
Fine filter
ePM
1
≥ 50 % (F7)
2
5.2 Filter inspection and replacement
!
Material losses
Never operate the unit without filters.
f
Inspect the filters for the first time three months after com-
missioning the appliance.
When the total fan runtimes reach the "Filter change interval"
parameter set by the qualified contractor, the programming unit
displays the filter change warning signal.
The qualified contractor can lengthen or shorten the interval for
inspecting filters depending on the level of contamination.
Change the filters when the filter change warning signal appears.
Change the filters if the surface is covered completely in dirt or
the filter is discoloured throughout.
Change the filters at least every 12 months.
Filter inspection
f
Disconnect the appliance from the power supply.
D
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6846
8
2
3
1
3
4
5
6
1 Wing screw
2 Filter cassette, extract air filter
3 Filter mat
4 Grille
5 Filter cassette, outdoor air filter
6 Outdoor air filter
f
Undo the wing screw on the filter cassette of the extract air
filter by turning the screw anti-clockwise.
f
Remove the filter cassette from the appliance.
1.
2.
3.
D
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6846
2
f
If necessary, place a new filter in the filter cassette. To do
this, slide the grille – behind which the filter mat is located –
a little to one side and swing the grille forwards like a door.
!
Material losses
Operate the appliance with at least the recommended
filter class. Ensure that filters are fitted accurately so they
can function properly.
f
Ensure that the direction of air flow through the filter is
correct.
M5, F7: The direction of flow is indicated by an arrow on the side
of the filter.
Coarse particle filter mat (white, G4): This filter does not have a
preferred direction of flow.
f
After inserting the filter, flip the grille shut again.
f
Push the filter cassette into the appliance. Ensure that the
filter cassette is installed in the intended position. The arrow
on the filter cassette and the arrow on the appliance must
point in the same direction.
f
To secure the filter cassette, turn the wing screw clockwise.
f
Undo the wing screw on the filter cassette of the outdoor air
filter by turning the screw anti-clockwise.
