6 720 817 281 (2017/05)Greentherm 9800 SEO 160/199 | SECO 199
Troubleshooting | 35
▶ Record the L1 gas adjustment value in table 16, when the
display starts blinking (as sign of confirmation).
▶ Press button to finish the L1 gas adjust (U1).
▶Press or until P1 appears.
▶ Press the button .
Display with indication "E".
▶ Press the button until the display shows "A1".
▶Press .
The appliance is now in the position for adjustment of the
maximum air flow.
▶ Press the buttons or until the CO
2
analyzer
shows the value indicated in tab. 17.
▶ Press the button for 3 seconds.
The value flashes as a sign of confirmation.
▶ Press the button to come out of this function.
Display with indication "A1".
▶ Close the hot water tap.
▶ Press until the display shows "E".
▶ Press the button .
Display with indication P1.
The adjustment of the maximum gas flow is finalized.
10.11.3Adjusting the minimum flow (Parameter P2)
▶ Press until the display shows "P2".
Appliance will ramp down to low fire and the water flow
should decrease. Wait a few minutes until stabilize.
▶Press or until U2 appears.
▶ Press the button .
The appliance will start the auto adjustment of the
minimum gas flow.
▶ Record the L2 gas adjustment value in table 16, when the
display starts blinking (as sign of confirmation).
▶ Press button to finnish the L2 gas adjust (U2).
▶Press or until P2 appears.
▶ Press the button .
Display with indication "E".
▶ Press the button until the display shows "A2".
▶Press .
The appliance is now in the position for adjustment of the
maximum air flow.
▶ Press the buttons or until the CO
2
analyzer
shows the value indicated in tab. 17.
▶ Press the button for 3 seconds.
The value flashes as a sign of confirmation.
▶ Press the button to come out of this function.
Display with indication "A2".
▶ Close the hot water tap.
▶ Press until the display shows "E".
▶ Press the button .
Display with indication P2.
The adjustment of the maximum gas flow is finalized.
▶ Press simultaneously buttons , and for 3
seconds.
Display with indication of temperature selected.
▶ Remove CO
2
analyzer probe from the appliance.
The auto adjust process takes several
minutes.
▶ Do not interfere with the appliance
during the auto adjustment process.
After adjusting parameter P1 and to avoid
damaging the CO
2
analyzer remove and
allow the unit to operate in P2 mode for 1 or
2 minutes before measuring and adjusting
parameter P2.
The auto adjust process takes several
minutes.
▶ Do not interfere with the appliance
during the auto adjustment process.
Readings Gas parameter Air Adjustment
Max.
Power
L1 value:_____ A1 value:_____ CO
2
value:_____
Min.
Power
L2 value:_____ A2 value:_____ CO
2
value:_____
Table 16
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