Bosch Greentherm T9800 SEC 199 Installation And Operating Instructions Manual page 56

56 | Troubleshooting
Fig. 54 Insert password
▶ Touch symbols or
▶ Touch the symbol
▶ Touch symbols or
▶ Touch the symbol
Adjust the maximum power
▶ Touch the symbol
Display shows L1 Gas Adjust.
Fig. 55 L1 Gas Adjust - Open Taps
▶ Open hot water taps until display no longer shows Open
Taps message (1 tub and 2 sinks should be sufficient).
Display shows Output Power (%) when there is enough
water flow to keep P1 mode active.
If Open Taps message appears during the P1
adjustment,
▶ Open one more hot water tap.
▶ Ensure low inlet water temperature by
turning off backup appliances (i.e.
solar).
6 720 816 815 (2018/08)
to select CA menu.
to enter CA menu.
to select MA menu.
to enter MA menu.
to enter P1 menu.
How to enter a new tuning parameter (i.e.
L1, L2, A1, A2).
▶ Select the desired parameter.
▶ Touch the symbol
The symbols
▶ Change to the desired value.
▶ Touch the symbol
The symbols
▶ Change L1 Gas Adjust parameter until reaches 100%
 2% 1)
Note: Power output may oscillate between an average
value if the water conditions are unstable. Consider the
average value of the oscillation in the adjustment if this is
the case.
L1 Gas Adjust is now complete.
▶ Touch symbols or
Adjust - ION.
Fig. 56 A1 Air Adjust - ION
▶ Change A1 Air Adjust parameter until ION value is
according to table 23.
Increase A1 Air Adjust parameter to decrease ION value
and vice-versa.
A1 Air Adjust is now complete.
1)
P1 maximum power
ION (A1 Air Adjust)
ION (A1 Air Adjust)
Table 23 P1 ION values
1) For information on unit's configuration (gas type: NG/LPG
and capacity: 160 000BTU/199 000BTU), see rating plate
(chapter 3.3).
1) Increase L1 Gas Adjust parameter to increase output
power and vice-versa.
Greentherm T9800 SE 160/199 | SEC 199
.
appears in the display.
when finished.
disappear.
until display shows A1 Air
199 000 BTU 160 000 BTU
Natural Gas
200 - 300 200 - 290
LP Gas
185 - 285 200 - 295