Maintenance And Service - Bosch Greentherm T9800 SEO199 Installation And Operating Instructions Manual

6.6 Water actuators 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.
6.6.1 MF (Main Valve Auto Calibration)
▶ Open one hot water tap.
▶ Access menu PA.
▶ Press the button .
▶ Press the buttons
▶ Press the button .
The appliance will start the auto calibration of main valve.
Display will show water flow rate value X 10 (multiplied by
10) during the process.
Water flow will shut-off.
▶ Wait until indication of calibration completed appears on
the screen, the value blinks.
▶ Wait until water flow blinks on the screen indicating that
calibration is complete.
▶ Press the button to return.
6.6.2 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 P4
Information menu.
▶ Access menu PA.
▶ Press button .
▶ Press button or
▶ Press button .
The appliance will start the auto calibration of the bypass
valve.
Display will show water flow rate value X 10 (multiplied by
10) during the process.
Greentherm T9800 SEO 160/199 | SECO 199 – 6 720 817 281 (2018/12)
or to select MF.
to select bP (bypass valve).
The display shows the flow rate.
▶ You should adjust the flow rate at the beginning of the
calibration process.
▶ Wait until water flow blinks on the screen indicating that
calibration is complete.
▶ Press the button
6.7 Gas type
Improper gas type will affect appliance performance. Outdoor
model is only suitable for Natural Gas.
▶ Press simultaneously buttons
seconds.
Display shows P4 (Information).
▶ Press buttons or
▶ Press to enter.
▶ Press buttons or
to table 15.
▶ Press for 3 seconds to confirm Gas type.
The selected gas type blinks.
Gas type
NG (Natural gas)
Table 15
7

Maintenance and service

WARNING:
Maintenance must be done by a trained or qualified contractor.
DANGER:
▶ Always shut off the electrical power supply, shut off the
manual gas valve and shut off the water valves whenever
servicing.
Maintenance and service
to return to main menu.
, and
to select P7 (Gas Type).
to confirm gas type according
Display
NA
for 3
33