TacoTherm Dual ZEPTO
Safety
2.5.4 Chemical dangers
Pitting corrosion
NOTICE!
Damage to metallic pipes and components due to
pitting corrosion!
The water quality has an effect on the corrosion
properties of the metallic materials installed.
– Observe the technical rules for installations
made of mixed materials.
– Observe the corrosion protection for metallic
materials in water distribution systems in
accordance with EN 12502.
– Observe the data sheet “Drinking water thresh-
olds and the materials used in the plate heat
exchanger” ( Ä Chapter 1.2 ‘Other applicable
documents’ on page 8).
2.5.5 Other dangers
Pressurised media
DANGER!
Danger of injury due to pressurised lines!
The lines of the unit can release pressures of up to
10 bar. If the lines are unscrewed incorrectly, this
may result in serious injuries.
– Always have lines screwed on or opened by a
heating technician without exception.
– Always have options installed or removed by a
heating technician without exception.
– Prior to opening the lines, always close the line
section and depressurise it via the air bleed
valves.
– If a bolted connection cannot be opened, this
may indicate that the line is still pressurised.
Ensure that the line section is depressurised.
Proliferation of legionellae
WARNING!
Proliferation of legionellae due to stagnant water!
If the unit is not used for an extended period, there is
a risk of the proliferation of legionellae due to stag-
nant water.
– Flush drinking water pipes with hot water at a
temperature of at least 55 °C when restarting the
unit.
16
Operating instructions
V03 06/2025 Item no. 215250 EA no. 1292
