Start-up/decommissioning
14 Installation instructions for the electronicVED exclusive electric instantaneous water heater 0020176440_00
5
5 Start-up/decommissioning
5.1 Purging the unit
b
Caution.
Risk of damage from heating wire dry
fire.
The unit must be purged every time it is
started up. Otherwise, there is a risk of dry
fire and, as a consequence, damage to the
unit.
> Ensure that the unit is de-energised
every time the unit is started up or
decommissioned.
> Check that there is no voltage in the
supply lines and connections.
> Ensure that the power cannot be
restored inadvertently to any of the sup-
ply lines and connections while you are
working on the unit.
To start up the unit, proceed as follows:
> De-energise the unit.
> Open the cold water stop valve.
> Close and open the hot water draw-off valve several
times. The unit will then be purged. In normal operating
mode, the unit will not need to be purged again.
2
1
5.1 Safety switch
> Push the safety switch (1) in, as shown in Figure 5.1.
i
If the display cable is not plugged into the elec-
tronics, the power cannot be regulated. The
water temperature that the unit then provides
will comply with the last value set.
5.2 Fitting the unit cladding
2
1
3
4
5.2 Fitting the unit cladding
> Plug the display cable into slot X7 of the unit's electron-
ics, as illustrated in Figure 5.1, position (2).
> Put the unit cladding (3) on.
> Tighten both bolts (2).
> Grip the panel (1) using the two straps.
> Splay the two straps (slightly pull the panel apart).
> Put the panel (1) on.
> Make sure that the hot water draw-off valve is closed.
> Connect the unit to the electrical mains (switch on the
fuse).
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