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6.3.2
Screen display
1
2
3
8
7
Fig. 64 Screen display
Key Explanation
[1]
Digital display
• Displays a temperature or appliance status/diagnostic code.
[2]
Central heating (CH)
• ( Heating mode On
• ] Heating mode Off
[3]
Fault indicator
• Displays during a fault condition.
[4]
Burner operation
• Displays when the appliance is firing in CH or DHW mode.
[5]
Chimney sweep mode
• Displays during service when the appliance is set to
maximum or minimum output.
[6]
Service mode
• Displays when a qualified heating engineer is in the service
menus.
[7]
Eco mode active
• Displays when in Economy mode (DHW Pre-heat/comfort
function is turned off)
[8]
Domestic hot water (DHW)
• * Hot water mode On
• [ Hot water mode Off
Table 24
6.3.3
Switching on the device
The appliance is vented after initial power-up. This involves the heating
pump switching on and off at intervals (for approx. 10-12 minutes).
and the flow temperature appear alternately in the display.
▶ Open automatic air vent valve.
Automatic condensate trap fill mode will begin when the appliance is first
powered-up.
When the flow temperature and the
the display, the condensate trap filling program is active.
Greenstar 1000 – 6721835943 (2023/08)
4
6
5
0010042732-001
symbol appear alternately on
6.3.4
Setting the flow temperature
The maximum flow temperature can be adjusted between 30 °C
and 82 °C. The current flow temperature is shown on the display.
▶ Press the ( key.
The set maximum flow temperature is displayed.
▶ Press arrow key or to set the required maximum flow
temperature.
▶ Press the ok key to save. Otherwise the setting will be saved
automatically after 3 seconds.
The display shows the current flow temperature.
The ( symbol flashes in the display in heating mode. The B symbol
also appears if the burner is active.
WARNING
Risk of scalding!
▶ This appliance is supplied with the CH control set at approximately
65 °C, a temperature that should be suitable for most installations
that comply with the current building regulations. When the boiler
switches from CH to DHW, the temperature of the hot water may
briefly exceed the DHW set point if the CH temperature is set higher
than the DHW temperature. If the CH temperature is changed to
above 65 °C, it is advisable to fit a thermostatic mixing valve (TMV) at
the point of use (e.g. before the bath hot tap or shower) to protect
vulnerable people from scalding.
6.3.5
Setting the DHW heating
Set DHW temperature
DHW temperature:
▶ Press the * key.
The set DHW temperature is displayed.
▶ Press arrow key or to set the required DHW temperature
▶ Press the ok key to save. Otherwise the setting will be saved
automatically after 3 seconds.
The display shows the current flow temperature.
The * symbol flashes in the display in DHW mode. The B symbol also
appears if the burner is active.
Setting comfort mode or ECO mode
In comfort mode, the appliance is continually maintained at the set
temperature ( service function 3-CA). This means there will be a short
delay when drawing DHW. However, the appliance will maintain this
temperature even without a DHW demand.
In ECO mode, heating-up to the set temperature begins as soon as the
DHW is being drawn.
In Eco mode, to reduce water usage:
▶ Briefly open and close the DHW tap.
The water is heated once to the set temperature.
▶ To set Eco mode: press * until eco appears in the display.
▶ To return to comfort mode: press the * key until eco vanishes from
the display.
6.3.6
Setting the heating control device
Observe the operating instructions of the heating controller. This shows
you:
▶ how to set the room temperature.
▶ how to heat economically and save energy.
Commissioning
43
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