Service Menu - Au Technical Settings - Bosch Greentherm T9800 SEC 199 Installation And Operating Instructions Manual

46 | Operating Instructions
▶ Touch the symbol
▶ Use the symbols
Metric ( °C l/min)
Imperial ( °F gal/min)
▶ Touch the symbol
The selected units blinks, display indicates A9 Units.
AA Display Timeout
Activation of brightness control increases energy savings when
the appliance is idle.
This menu lets you control 3 parameters of the display when
idle, or when the unit is not in use:
• enable / disable brightness control
• after which time the brightness control is activated
• brightness level
▶ Access to information / adjustments menu.
Display shows SA Settings.
▶ Touch the symbol
Timeout.
▶ Touch the symbol
Display shows Backlight.
Fig. 45 Backlight control menu
▶ Touch the symbol
▶ Use the symbols
▶ Touch the symbol
▶ Use the symbols
and 1 hour.
▶ Touch the symbol
The time is defined, the brightness value must now be
programmed.
▶ Use the symbols
display when in period of inactivity.
▶ Touch the symbol
brightness.
AC Lock Display
This menu allows to lock the display.
▶ Touch the symbol
Display shows following menu.
6 720 816 815 (2018/08)
.
or to select measurement units.
after selecting the desired units.
until the display shows AA Display
.
.
or to select DIM.
.
or to set between 10 seconds
after reaching the desired value.
or to set the brightness of the
after reaching the desired
.
– Off
– On
▶ Touch symbols or
▶ Touch the symbol
The current selection is in green color.
To unlock the screen
▶ Touch symbols and
unlock touch screen.
▶ Touch the symbol
The display will lock after a few seconds of inactivity.
To unlock the display,
▶ Touch the symbols
6.5.3 AU - Technical Settings
DANGER:
▶ Only for trained personnel!
▶ See section 6.6.
6.5.4 "P9" - Purge
Fig. 46 P9 - Purge
This menu allows you to purge the exhaust circuit.
▶ Access to information / adjustments menu.
Display shows P4 Information.
▶ Touch the symbol
After 2 sec. the fan starts working to purge the exhaust
circuit.
The fan remains running until the Purge menu
is exited, to do so:
▶ Touch the symbol
6.6

Service menu - AU Technical Settings

Accessing the AU Technical Settings menu
▶ Touch the symbol
Display shows P4 Information.
Greentherm T9800 SE 160/199 | SEC 199
to select the desired option.
.
more than 2 seconds to
to return to main menu.
and for 2 seconds.
until the display shows P9 Purge.
.
.