Stiebel Eltron VRC-W 400 Utilisation Et Installation page 20

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maintenance
1
1 Wing screw
f To remove the heat exchanger from the appliance, undo the
wing screw, which pushes the support bar against the heat
exchanger from below.
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.
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.
20 | VRC-W 400 (E)
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.
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°.
f Carefully pull both fan units from the appliance by a small
amount.
4
3
1 Temperature sensor connection
2 Pressure sensor connection
3 Connection for the fan power cable
4 Connection for the fan control cable
f At the front of the supply air fan, disconnect the 3-core power
cable and the 4-core control cable.
300°
1
2
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