Test Symbols; Appliance Description; Operation; Cleaning, Care And Maintenance - STIEBEL ELTRON SNU 5 SLI Operation And Installation Manual

OPERATION

Appliance description

Material losses
!
The user should protect the appliance and its tap against
frost.
Material losses
!
Never subject the appliance to water pressure. The tap
outlet has a vent function. Scale build-up can block the
outlet and subject the appliance to pressure.
f Never seal the tap outlet. f
f Only use special aerators for non-pressurised water f
heaters.
f Never extend the tap outlet with a hose f
Material losses
!
Connecting the appliance via a time switch will cause an
unintentional reset of the high limit safety cut-out.
f Never connect the appliance to the power supply via f
a time switch.
2.3

Test symbols

See type plate on the appliance.
Information for Australia/New Zealand:
Installation complies with standard AS/NZS 3500.4.
3. Appliance description
The open vented (non-pressurised) appliance constantly maintains
the water content at the pre-selected temperature. The appliance
may only be installed with taps for open vented (non-pressurised)
water heaters (see chapter "Installation / Appliance description /
Accessories").
thermostop function
The thermostop function (thermal separation) prevents the tap
becoming hot in standby mode.
Anti-drip function
The anti-drip function prevents expansion water from escaping
from the tap during heating. When water is heated, gas bubbles
are formed. The amount of gas bubbles depends on the water
quality. At temperatures > 75 °C the rising gas bubbles can cause
residual water to drip from the tap outlet.
Subject to design, some taps have a tendency to drip for a short
while after being closed. This dripping is caused by residual water
escaping from the tap outlet and is not linked to expansion water.
16 | SNU 5
3.1 Operation
You can set any required DHW outlet temperature at the tem-
perature selector. The heat-up indicator illuminates during the
heat-up process.
1 Temperature selector
2 Heat-up indicator
Depending on the system, the actual temperatures may vary from
the set value.
°C = Cold. On this setting, the appliance is protected from
frost. The tap and the water line are not protected.
Eco = Recommended energy saving setting (approx. 60 °C),
minor scaling
85 = Highest selectable temperature
Note
A qualified contractor can set a temperature limit on the
appliance (see chapter "Installation / Settings / Setting
the temperature limit").
4.

Cleaning, care and maintenance

f Never use abrasive or corrosive cleaning agents. A damp f
cloth is sufficient for cleaning the appliance.
f Check the tap regularly. You can remove limescale deposits f
at the outlet using commercially available descaling agents.
Almost every type of water will deposit lime at high temperatures.
This settles inside the appliance and affects both the performance
and service life. The heating elements should therefore be des-
caled if necessary. A qualified contractor who is aware of the
local water quality will tell you when the appliance should next
be descaled.
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