S 10 / S 15
22
8. How to use
Via the temperature selector the temperature can be continuously adjusted in a range
of 5 to 80 °C.
The water is dispensed via the hot water tap of the installed fitting and can then be
mixed with cold water.
Temperature selection
Setting °C Function
5
This switch setting protects the appliance against frost damage
Eco
30 Economy setting “Eco”, usually for wash basins
55 °
55 55 °-setting, usually for kitchen sinks
MAX
80 Setting for hot water and when large amounts of warm water are required
The storage heater cannot be switched off via the temperature selector. It can only be
switched off by disconnecting the mains plug.
Note:
Please avoid the temperature setting between 25 and 55 °C if the heater is not
in use every day due to the risk of legionella bacteria.
Legionella prevention
If the water storage heater is out of use for more than a week, legionella bacteria can
arise in the water tank. In this case you need to flush the appliance (see flush proce-
dure in chapter “Initial operation“).
Do not breathe in any potential rising steam.
9. Drain water storage heater
Preparation
1. Pull out the main plug.
2. Open the hot water tap and wait until cold water drains out.
Attention! Make sure that the storage water heater is flushed completely with
cold water.
3. Close the hot water tap.
4. Close the water supply of the storage water heater.
5. Open the hot water tap to release the pressure out of the system.
6. Close the tap if no more water drains out.
S 10-U / S 15-U
• Disassemble the water connecting hoses directly at the storage water heater.
• Catch any leakage water which possible drips out.
• Place the storage water heater over a sink and turn it upside down. The water will
now drain out until it is empty.
S 10-O / S 15-O
• Disassemble the cold water pipe (B) from the cold water connection (A)
• Catch any leakage water which possible drips out.
• Connect a flexible connecting hose at the cold water connection and put the other
end of the hose into a sink.
• Open the hot water tap to ventilate the storage water heater. The water will then
drain out via the hose.
A
B
S10-O / S 15-O
S10-U / S 15-U
S10-O / S 15-O
S10-U / S 15-U
