Worcester Greenstar 8000 Life GR8300iW 30 R

Settings in the service menu
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Greenstar 8000 Life – 6720883866 (2019/04)
Table 20 Menu 4: Settings
Menu 5 (L.5) Limit values
▶ Press the ( key and * key at the same time, until L.A is displayed.
▶ Keep pressing the arrow key , until L.5 is displayed.
▶ To confirm the selection: Press the OK key.
▶ Select and set the service function.
The basic settings are depicted as highlighted in the following table.
Table 21 Menu 5: Limit values
4-b5 Frost protection • OFF
• ON
This service function is only available, if service
function 4-b1 is activated.
Appliance frost protection switches the burner and
heat pump on, if the outside temperature falls
below 5 °C. This prevents the heating appliance
freezing.
4-b6 Frost temperature limit • 0 ... 5 ... 10 °C Temperature value for the system frost protection.
This service function is only available if service
function 4-b1 was activated. If the outside
temperature does not exceed the frost threshold
temperature, then the heating pump in the heating
circuit switches on.
4-C1 Maximum temperature in the solar
cylinder
• 20 ... 60 ... 90 °C Only available if the solar module is activated.
Temperature, to which the solar cylinder may be
charged.
4-C2 Solar pump speed control • 0: No
• 1: PWM
• 2: 0-10 V
Only available if the solar module is activated.
4-C3 Solar module active • OFF
•ON
Only available if the solar module is detected.
4-d2 Minimum system pressure • 0.8...1.1 bar
4-d3 Target system pressure • 1.3...1.7 bar
4-F1 Reset appliance to basic setting • NO: Settings are retained
• YES: Appliance is reset to basic settings
4-F2 Reset of maintenance message • NO
• YES
Service function L.4 Settings/adjustment range Remark/restriction
Service function L.5 Settings/adjustment range Remark/restriction
5-A1 Maximum flow temperature • 30 … 88 °C Limits the adjustment range for the flow
temperature.
5-A2 Maximum DHW temperature • 35...60 ... 70 °C Limits the adjustment range for the hot water
temperature.
5-A3 Minimum boiler output (heating and
DHW)
• 10 ... 50 % Minimum heat output.