Screen Display; Displayed Indicators; Setting The Flow Temperature; Setting The Dhw Heating - Worcester Greenstar 1000 User Instructions

Operation
4.3

Screen display

1 2 3
8 7
Fig. 5 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 during heating or hot
water 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 service engineer is in the service
menus.
[7] Eco mode active
• Displays when in Economy mode (when in Economy mode,
comfort mode is turned off)
[8] Domestic hot water (DHW)
• * Hot water mode On
• [ Hot water mode Off
Table 3
4.4

Displayed Indicators

Indicators displayed on the screen (Tab. 4 and 5):
Indicated value
Number, period, number or
letter, letter after dot
After the letter comes a
number or letter
Number two or one number,
number after dot
or
Three numbers
Table 4 Display indicators
10
4
6 5
0010042385-001
Introduction
Service function
Error code flashes
Decimal value
eg. boiler temperature
Special Introduction
indicator
EMS connection not possible
Siphon filling program active (service function)
Air discharge function (approximately 4 minutes)
(service function)
]
Summer mode (device frost protection)
Example 227 Error code
only ] and [ Standby mode
Low pressure
Table 5 Special display indicators
The heating and hot water system has been set up by the installer to its
optimum settings.
▶ It is advised to make a note of these settings before adjusting so that
you can return to these optimum settings in the future.
4.5

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.
4.6

Setting the DHW heating

4.6.1

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.
Greenstar 1000 – 6721835944 (2023/08)