INsTALLATIoN
Appliance shutdown
46 | LWZ130 www.stiebel-eltron.com
13. Appliance shutdown
We recommend running the appliance in fan stage1, even during
prolonged absence.
!
Material losses
If you interrupt the power supply to the appliance, check
that humidity protection is ensured for the building.
If the appliance needs to be taken out of use for an extended
period, disconnect it from the power supply.
Replace the filters.
14. Maintenance
WARNING Electrocution
Disconnect the appliance from the power supply before
carrying out work inside the appliance.
Activity Maintenance interval
(in years)
Cleaning the condensate pan 1
Condensate drain 1
Clean cross-countercurrent heat exchanger 3
Fan 3
Preheater 2
Air ducts 3
Open the cover beneath the appliance or remove the sus-
pended ceiling panels under the appliance.
Interrupt the power supply.
Condensate pan
D0000068467
1
1
2
1 Condensate pan fixing screws
2 Condensate pan
Undo the fixing screws of the condensate pan.
Remove the condensate pan from the appliance carefully as it
may still contain water.
Condensate drain
!
Material losses
A blocked condensate drain can cause appliance faults.
If the condensate drain is blocked, condensate can escape
from the appliance in an uncontrolled manner and cause
water damage.
Clean the float module of the condensate pump
This section is not necessary if no condensate pump is connected.
Check the functionality of the float module every two years. If
necessary, clean the float module.
You can remove the cover of the float module. During assembly,
ensure that the bevelled side of the float magnet faces upwards.
Push the cover back onto the float module.
Cross-countercurrent heat exchanger
Remove the wedge from between the appliance body and the
cross-countercurrent heat exchanger.
Carefully remove the heat exchanger from the unit. Avoid
damaging the EPS parts in the appliance.
Use a commercially available vacuum cleaner to remove dust
and other loose dirt particles from the intake and discharge
surfaces.
If required, clean the heat exchanger with warm water
(max.55 °C) and a commercially available detergent. Do not
use solvents.
Flush the heat exchanger with water.
Fan
You can clean the fans without disconnecting the cables leading
to the fans. Nevertheless, we recommend removing the control
panel cover. Then you can unplug the control cable and power
cable from the printed circuit board.
Undo the screws securing the fans.
Clean the fans with a soft brush.
Preheater
In principle, the preheater does not need to be cleaned. Inade-
quate filter changing can cause dust to build up in the appliance.
In this case, the preheater does need to be cleaned.
Refitting the components
Push the fan units back into the appliance.
Reconnect the fan cables.
Fit the control panel cover.
Slide the cross-countercurrent heat exchanger back into the
appliance.
Push the wedge back in again.
Fit the condensate pan.
Air ducts
Air ducts must be checked at regular intervals and cleaned if nec-
essary. Disconnect the air ducts from the appliance or carry out in-
spection and cleaning through the extract air and supply air vents.
326794-41212-9444_LWZ_130_de_en.indb 46 09.05.2019 12:06:09
To Next Page
Loading...
