Bosch Greentherm T9800 SEC 199 Installation And Operating Instructions Manual page 55

After enter AU Technical Settings menu,
▶ Touch symbols or
Display shows CA Combustion Adjust.
▶ Touch the symbol
• UC - Auto Adjust
• MA - Manual Adjust
• IC - Ionization control
• PP - P2A2
• P0 - Min. Power
Fig. 52 CA Combustion Adjust
8.11.1 UC - Auto Adjust
To enter UC Auto Adjust of Gas/Air flow;
▶ Touch symbols or
▶ Touch the symbol
Wait a few minutes until Open Taps message
appears in the display.
▶ Open hot water taps when the display shows Open Taps
message (1 tub and 2 sinks should be sufficient; when
there is enough water flow the message disappears).
Fig. 53 Auto Adjust - Open Taps
Greentherm T9800 SE 160/199 | SEC 199
to select CA menu.
to enter CA menu.
CA
Combustion
Adjust
6720816815-32.2V
to select UC menu.
to enter UC menu.
Combustion
Adjust
1 / 8
6720816815-31.3V
The Auto Adjust process takes several
minutes.
▶ Do not interfere with the appliance
during the auto adjustment process.
In case of anomaly you will be guided to
act accordingly.
▶ Wait until indication that the calibration is completed
appears on the screen.
▶ Touch the symbol
Gas and Air auto adjustment is complete.
In case of failure in the auto calibration
process verify if:
▶ Gas type and pressure are correct.
▶ Vent length is according to specification.
▶ Wind conditions are stable (e.g. wind
gusts may be a cause of failure).
▶ Hot water flow is sufficient and stable
(e.g. water from a well is a potential
source of water instability).
In case of positive results for all these
actions:
▶ Exit UC menu and repeat the process.
▶ Perform manual adjustment according
to chapter 8.11.2 or contact Bosch
support line for further assistance.
8.11.2 MA - Manual Adjust
Gas/Air flow adjust is also possible to perform manually (only
recommendable if automatic adjust is not possible to conclude
successfully).
Accessing the AU Technical Settings menu
▶ Touch the symbol
Display shows P4 Information.
▶ Touch symbols or
Settings menu.
▶ Touch the symbol
Display shows Technical Settings menu (password input).
▶ Select the password. The password is 1886.
Technical Settings is completed.
Troubleshooting | 55
to exit UC menu.
.
to select AU Technical
.
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