CTC Union EcoZenith i555 Pro 1x230V, Installation And Maintenance Manual

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110 CTC EcoZenith i555 Pro
Current Monitor (protection for main fuses)
CTC EcoZenith i555 Pro has a built-in current monitor. If the system is fitted
with a current sensor (included), the property’s main fuses are continuously
monitored to ensure they are not overloaded. If this should happen, electric
stages are disconnected from the EcoZenith. The product’s electric heaters
may be restricted where high heating requirement levels are combined with,
for example, single-phase engine heaters, cookers, washing machines or
tumble dryers. This may result in inadequate heating or DHW temperatures.
If electric heaters in the EcoZenith are restricted, this is shown in plain text on
the display. Ask the electrician if the fuse size in the house is correct.
Sound Problems
Sudden pressure changes in the tap water system may cause noise. This
is due to pressure surges which occur when, for instance, an older type of
instant closing mixer is turned off quickly. The fault is not in the EcoZenith,
and the problem can be easily rectified by replacing the mixer with a soft
closing one. If an unusual sound comes from hard-closing dishwasher and
washing machines, this can be remedied using a shock arrestor. A shock
arrestor can also be an alternative to soft-closing water taps. Minimising
pressure surges benefits the whole of the tap water system throughout the
property.
If you hear a rasping sound from the product, check that it has been properly
bled. Bleed via the product’s safety valve or specially fitted bleed valve, so
that any air can be evacuated. Top up with water where required, so that the
correct pressure is achieved. If this noise recurs, call a technician to check
the cause.
i
Don't forget that the
radiators may also
need bleeding.
i If you have no
radiator thermostats
on the first floor, you
may need to install
some.