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Au - Technical Settings; P9" - Purge - Bosch Greentherm T9900 SE 160 Installation And Operating Instructions Manual

Indoor residential tankless water heaters, 160 000/199 000 btu- natural gas 160 000/199 000 btu - liquefied petroleum lp gas
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Operation instructions
▶ Use the symbols
▶ Touch the symbol
Display shows Startup Value(s).
▶ Touch the symbol
▶ Touch the symbols
delay to start-up after detection of the water flow.
▶ Touch the symbol
A9 Units Set
This menu allows you to choose the units visible on the display.
▶ Access to information / adjustments menu.
Display shows SA Settings.
▶ Touch the symbol
▶ 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. 46
Backlight control menu
▶ Touch the symbol
▶ Use the symbols
▶ Touch the symbol
▶ Use the symbols
and 1 hour.
50
or
to select A8 Startup Delay.
.
.
or
to define, in seconds, the
after reaching the desired value.
until A9 Units is in the display.
.
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
▶ 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.
– Off
– On
▶ Touch the symbols
▶ Touch the symbol
The current selection is in green color.
To unlock the screen,
▶ Touch the symbols
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

WARNING:
▶ Only a qualified technician is authorized to access this
menu.
▶ See section 6.6.

6.5.4 "P9" - Purge

Fig. 47
P9 - Purge
This menu allows you to purge the exhaust circuit.
▶ Access to information / adjustments menu.
Display shows P4 Information.
Greentherm T9900 SE/i – 6 720 813 635 (2019/03)
after reaching the desired value.
or
to set the brightness of the
after reaching the desired
.
or
to select the desired option.
.
and
more than 2 seconds to
to return to main menu.
and
for 2 seconds.

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Greentherm t9900 se 199Greentherm t9900 se/i 199