INsTALLATIoN
Maintenance
www.stiebel-eltron.com
LWZ 180 / LWZ 280 / LWZ 180 Enthalpie / LWZ 280 Enthalpie |
47
EN
GL
ISH
f
Remove the inner front panel from the appliance by tilting
the inner front panel forwards and then lifting it out of the
bottom slots.
D
00000
82
55
6
1
1 Wing screw
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To remove the heat exchanger from the appliance, undo the
wing screw, which pushes the support bar against the heat
exchanger from below.
D
00000
40
36
5
f
Carefully remove the heat exchanger from the unit. Avoid
damaging the gaskets in the appliance.
f
Use a commercially available vacuum cleaner to remove dust
and other loose dirt particles from the intake and discharge
surfaces.
26
�04
�1
5�
004
7
f
If required, clean the heat exchanger with warm water
(max. 55 °C) and a commercially available detergent. Do not
use solvents.
f
Flush the heat exchanger with water.
Cleaning the fan units
Each fan unit has a rotating eccentric bolt at the bottom. To ensure
that the seals fit correctly on the fan unit, the eccentric bolt raises
the fan unit while pushing it towards the back. Release the eccen-
tric bolt before pulling out the fan unit. Retighten the eccentric
bolt after installing the fan unit.
300°
D
00000
63
65
2
1
2
1 Eccentric bolt tightened (slot horizontal)
2 Eccentric bolt released
f
Use a medium sized screwdriver to turn the eccentric bolt
anti-clockwise by 300°.
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Carefully pull both fan units from the appliance by a small
amount.
D
00000
40
36
6
4
3
1
2
1 Temperature sensor connection
2 Pressure sensor connection
3 Connection for the fan power cable
4 Connection for the fan control cable
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At the front of the supply air fan, disconnect the 3-core power
cable and the 4-core control cable.
f
Disconnect the 6-core common cable for the pressure sensor
and temperature sensor. Four cores of the cable are connect-
ed to the pressure sensor connection. Two cores of the cable
are connected to the temperature sensor connection.
f
Remove the supply air fan from the appliance.
