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Troubleshooting
63
Greentherm T9800 SE 160/199 – 6 720 816 815 (2022/01)
▶Increase L2 Gas Adjust parameter to increase ION ratio
and vice-versa.
Fig. 62 L2 Gas Adjust - ION ratio
▶ Touch the symbol to save value.
▶ Touch the symbol to return to the main menu.
Minimum power adjust is completed.
Gas and Air adjustment is complete.
8.11.3 Restore factory values
To restore factory values for combustion settings,
▶ Proceed with the following steps.
To enter P1 and P2 menu,
▶Access to AU Technical Settings menu.
▶ Touch symbols or to select CA menu.
Display shows CA Combustion Adjust.
▶ Touch the symbol to enter CA menu.
▶ Touch symbols or to select MA - Manual Adjust
menu.
▶ Touch the symbol to enter P1 or P2 menu.
Reset Parameters P1
After enter MA - Manual Adjust,
▶Access to menu P1.
▶ Touch symbols or to select Reset Parameters.
▶Touch the symbol .
The factory default values for P1 are restored.
Reset Parameters P2
After enter MA - Manual Adjust,
▶Access to menu P2.
▶ Touch symbols or to select Reset Parameters.
▶Touch the symbol .
The factory default values for P2 are restored.
8.11.4 Additional combustion settings
The parameters and operation modes presented in this section
are available for certification purposes and advanced
troubleshooting with guidance from BOSCH support line.
For optimal operation, use the default settings.
IC - Ionization control
Default setting is On.
▶ Only a qualified technician can change this parameter.
PD Power derate
Default setting is On.
▶ Only a qualified technician can change this parameter.
Minimum power and check (P2)
▶ Only a qualified technician can change this parameter.
PP P2A2
Default setting is On.
▶ Only a qualified technician can change this parameter.
P1 Max. Power - Ionization control
Default setting is Off.
▶ Only a qualified technician can change this parameter.
P0 Min. Power - Ionization control
Default setting is Off.
▶ Only a qualified technician can change this parameter.
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