Water Valves Calibration; Gas Type - Bosch Greentherm T9800 SEC 199 Installation And Operating Instructions Manual

48 | Operating Instructions
AB Region Selection
▶ Touch the symbol
Display shows following menu.
– Europe
– North America
A4 Demonstration
Simulates in the display, the appliance is functioning.
(Only available when burner is not working)
6.7

Water valves calibration

Water valve calibration must be done when
main water valve or bypass valve is replaced.
Also required when electronic control unit is
replaced.
The water valve calibration process takes
several minutes.
▶ Do not interfere with the appliance.
Only possible after access Technical
Settings menu ( section 6.6).
6.7.1 MF main-water valve auto calibration
▶ Open one hot water tap.
Before moving to the next step,
▶ Make sure there is water flow.
▶ Access menu PA.
▶ Touch symbol OK.
▶ Touch symbols or
▶ Touch symbol OK.
The appliance will start the auto calibration of main valve.
Water flow will shut-off.
▶ Wait until indication of calibration
completed appears on the screen.
▶ Touch the symbol
6.7.2 BP bypass valve auto calibration
▶ Open one hot water tap.
Flow rate between 0.80 GPM and 1.80 GPM is required.
It's possible to confirm this value by entering BP bypass-
water valve menu.
6 720 816 815 (2018/08)
.
to select MF main valve.
to return to main menu.
▶ Access menu PA.
▶ Touch symbol OK.
▶ Touch symbols or
valve.
▶ Touch symbol OK.
The appliance will start the auto calibration of the bypass
valve.
The display shows the flow rate.
▶ You should adjust the flow rate at the
beginning of the calibration process.
▶ Wait for the indication that the
calibration is completed to appear on the
screen.
▶ Touch the symbol
6.8

Gas type

Only possible after access Technical
Settings menu.
▶ Access to menu P7 Gas Type.
Display shows appliance gas type.
▶ Use the symbols
The gas type conversion must only be carried
out by a qualified contractor.
▶ Touch the symbol
Display blinks 3 times and return to P7 menu.
6.8.1 Gas conversion from NG to LPG
DANGER: Fatal accidents!
Before any service or testing in the
appliance,
▶ Turn off the appliance.
▶ Disconnect the power supply cord.
▶ Shut off the gas supply.
The gas type conversion must only be carried
out by a qualified contractor.
▶ Turn Off the appliance.
▶ Remove the front cover from the appliance (section 3.3.2).
Greentherm T9800 SE 160/199 | SEC 199
to select BP bypass-water
to return to main menu.
or to confirm gas type.
.