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Settings in the service menu
Service function
4-b5 Device frost protection
4-b6 Temperature value for the system frost
protection
4-F1 Reset device to basic setting
4-F2 Reset the fault display
Table 28 Menu 4: settings
8.2.4
Menu 5
▶ Press ( and * at the same time, until L.A is displayed.
▶ Keep pressing , until L.5 is displayed.
▶ To confirm the selection: Press the OK.
Service function L.5
5-A1 Maximum flow temperature
5-A3 Minimum boiler output (heating and
DHW)
Table 29 Menu 5: Limit values
8.2.5
Menu 6
▶ Press ( and * at the same time until L.1 appears.
▶ Press until L.6 is displayed.
▶ To confirm the selection: press OK.
Service function
6-t1 Permanent ignition
6-t2 Permanent fan operation
6-t3 Permanent pump operation
6-t5 3-way valve permanently in the DHW
heating position
6-tA Ionisation oscillator
6-tb Burner test
Table 30 Menu 6: function checks
8.2.6
Menu 0
▶ Press ( and * at the same time until L.1 appears.
▶ Press until L.0 is displayed.
▶ To confirm the selection: press OK.
Service function
0-A1 Manual operation
0-A2 Set temperature in manual operation
Table 31 Menu 0
52
Settings/adjustment range
• OFF: switched off
• ON: switched on
• 0 ... 5 ... 10 °C
• YES: device is reset to factory settings
• NO: fault is retained
• YES: fault is reset
The basic settings are depicted as highlighted in the following table.
▶ These settings will not be reset during a factory reset.
Settings/adjustment range
• 30 ... 65...82 °C
• GR1000W 24 C : 21 ... 49%
• GR1000W 30 C : 21 ... 49%
The basic settings are depicted as highlighted in the following table.
Settings/adjustment range
• OFF: switched off
• ON: switched on
• 0 ... 100 %
• OFF: switched off
• ON: switched on
• 0: heating
• 1: DHW
• 2: (not available)
• OFF: switched off
• ON: switched on
• 21 ... 100 %
The basic settings are depicted as highlighted in the following table.
Settings/adjustment range
• OFF: switched off
• ON: switched on
• 30 ... 60 ... 82 °C
Remark/restriction
This service function is only available if service
function 4-b1 is activated.
The device frost protection function switches the
burner and heating pump on when the outside
temperature falls below 5 °C. This prevents the
wall mounted boiler freezing.
This service function is only available if the frost
protection function (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 (system
frost protection).
Remark/restriction
Limits the adjustment range for the flow
temperature.
Minimum heat output.
Remark/restriction
Testing the ignition by means of permanent
ignition without gas supply.
▶ To prevent damage to the ignition
transformer: Leave the function switched on
for a maximum of 2 minutes.
Fan running without gas supply or ignition.
If a value >0 is set, the pump runs at 100 %.
The burner test is ended by resetting the setting
value to 0, or by exiting L.5.
Remark/restriction
Greenstar 1000 – 6721835943 (2023/08)
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