Setting The Hot Water Temperature; Domestic Hot Water Pre-Heat - Bosch Worcester Greenstar Si Series User Instructions

3.1.4 SETTING THE HOT WATER TEMPERATURE

1. Turn the hot water temperature control knob to the desired level.
Fig. 4 Hot water temperature

3.1.5 DOMESTIC HOT WATER PRE-HEAT

The hot water heat exchanger is kept "pre-heated" to reduce the time taken to deliver hot water at the
tap. Pre-heat is enabled by default, during the initial boiler start up and the ECO button is not
illuminated.
Eco mode is an energy saving function allowing hot water to be heated only as and when required, by
running a hot tap, this OFF by default.
1. Press and hold the Eco button for at least four seconds to enter the energy saving Eco mode, when
Eco mode is active the Eco button will be illuminated.
Fig. 5 Eco mode
3 4
5
2
1 6
max
3 4
5
2
1 6
max
6 720 643 356a (2010/10)
3 4
e
2
1.
1
min max
1.
3 4
e
2
1
min max
CONTROLS
reset
eco
6
reset
eco
6
9