Worcester GR8300iW 30 S Installation And Maintenance Instructions Manual page 50

Settings in the service menu
Service function L.4
4-b3 Heating curve end
4-b4 Heating curve base
4-b5 Frost protection
4-b6 Frost temperature limit
4-C1 Maximum temperature in the solar
cylinder
4-C2 Solar pump speed control
4-C3 Solar module active
4-d2 Minimum system pressure
4-d3 Target system pressure
4-F1 Reset appliance to basic setting
4-F2 Reset of maintenance message
Table 21 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.
Service function L.5
5-A1 Maximum flow temperature
5-A2 Maximum DHW temperature
5-A3 Minimum boiler output (heating and
DHW)
Table 22 Menu 5: Limit values
50
Settings/adjustment range
• 20 ... 90 °C
• 20 ... 90 °C
• OFF
• ON
• 0 ... 5 ... 10 °C
• 20 ... 60 ... 90 °C
• 0: No
• 1: PWM
• 2: 0-10 V
• OFF
• ON
• 0.8...1.1 bar
• 1.3...1.7 bar
• NO: Settings are retained
• YES: Appliance is reset to basic settings
• NO
• YES
The basic settings are depicted as highlighted in the following table.
Settings/adjustment range
• 30 ... 88 °C
• 35...60 ... 70 °C
• 10 ... 50 %
Remark/restriction
This service function is only available, if service
function 4-b1 is activated.
Set flow temperature at an outside temperature of
– 10 °C.
This service function is only available, if service
function 4-b1 is activated.
Set flow temperature at an outside temperature of
+ 20 °C.
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.
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.
Only available if the solar module is activated.
Temperature, to which the solar cylinder may be
charged.
Only available if the solar module is activated.
Only available if the solar module is detected.
Remark/restriction
Limits the adjustment range for the flow
temperature.
Limits the adjustment range for the hot water
temperature.
Minimum heat output.
Greenstar 8000 Life – 6720883858 (2019/02)