Kwb; Setting The Dhw Temperature - Bosch Greenstar FS Operating Instructions Manual

Always set the DHW temperature as low as possible. A lower setting on the
thermostat means a higher rate of energy savings. Futhermore, higher DHW
temperatures result in increased limescale deposits and thereby may impair the
function of the appliance (e.g. longer times for heating up or lower output).
Eco button
Pressing and holding the ECO button until it lights up switches from Comfort mode
to Economy mode.
• Comfort mode, ECO button is not lit (default setting)
In comfort mode, the DHW tank has priority. The DHW tank is heated to the set
temperature first. Then the appliance switches to central heating mode.
• Economy mode, ECO button lit
In Economy mode, the appliance alternates between central heating and DHW mode.
4.6 KWB..-3A appliances (combi boilers):

Setting the DHW temperature

▶ Set the DHW temperature on the DHW thermostat *.
The set DHW temperature flashes on the display for 30 seconds.
Fig. 5
Greenstar FS/Combi FS – 6720810589 (2021/01)
3 4
2 5
1 6
max
reset
eco
4
3
e
2
1
6
max
6 720 641 933-55.1O
Operation
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