Installation instructions for the electronicVED exclusive electric instantaneous water heater 0020176440_00
21
Detecting and rectifying faults
Inspection and maintenance
8
9
8.1
Possible problems when using the remote
control
Problem-free operation of the radio remote control for the
electronicVED exclusive is dependent on the environmental
conditions at the place of use. For example, the transmis-
sion of the radio signals may be impeded. Causes for this
include objects in the path of the radio waves, e.g. walls,
ceilings or other objects which can block radio waves. Other
radio-transmission installations (e. g. weather stations) can
also disrupt communication between the remote control
and the electronicVED exclusive.
>
If the operator is experiencing problems when using the
radio remote control, refer them to the information pro-
vided above.
>
If the operator is experiencing problems when using the
remote control, first refer them to the following general
points:
– The batteries must provide sufficient power.
– The remote control must not be too far away from the
electronicVED exclusive.
9
Inspection and maintenance
e
Danger!
Risk of death from electric shock from
live lines and connections!
>
Isolate all electrical supplies and connec-
tions from the power supply before car-
rying out maintenance or repair work.
>
Check that there is no voltage in the sup-
ply lines and connections.
>
Ensure that the voltage cannot be inad-
vertently restored to any of the supply
lines and connections while you are
working on the unit.
– A functional and visual inspection of the unit must be
carried out every three years by a competent person.
– If the water is very hard, more regular de-scaling may be
necessary.
– If the water has a large volume of suspended matter, the
water filter in the cold water flow must be replaced more
often. At the same time, the water filter has a sealing
function.
Carry out the following actions:
>
Replace the water filter in the cold water flow.
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Check for deposits in the hot water pipe between the
heating block and the hot water connection.
>
When re-assembling the unit, insert a new flat seal into
the hot water connection.
>
Check whether the unit needs to be de-scaled and do so
if required.
i
If the unit needs to be completely de-scaled,
attach a decalcification pump between the cold
and hot water connection.
>
After de-scaling the unit, flush it thoroughly with water.
>
After de-scaling the unit, purge it (see section 5).
b
Caution.
Risk of damage caused by leaks.
After changing the water filter in the cold
water flow, leaks may occur due to the new
filter being incorrectly fitted.
>
When fitting a new water filter in the cold
water flow, make sure that the filter is
correctly positioned in the pipe and that
the connection is sealed.
