Bosch Greentherm T9800 SEC 199 Installation And Operating Instructions Manual page 42

42 | Operating Instructions
To increase setpoint temperature limit of the
appliance,
▶ Access the menu LM - Temperature
Limited ( Section 6.6) and select
Unlocked.
A lower temperature set point will reduce the risk of scalding,
reduce energy consumption and increase the longevity of the
heat exchanger.
CAUTION: The temperature shown on the
display is approximate, always check with
your hand before bathing children or elderly.
Setting the water temperature
The desired temperature of hot water can be adjusted on the
front control panel of the heater.
The water heater has an electronically controlled gas valve that
modulates the burner input in response to both varying hot
water flow rates and/or changes in any incoming and outgoing
water temperatures.
Saving water resources:
Fig. 41
6 720 816 815 (2018/08)
6.4.1 Programming the default setpoint temperature
Fig. 42 "Program" key
▶ Touch the symbol
temperature.
▶ Hold the "OK" button for 3 seconds to save the default set
point temperature.
When the display stops blinking, the default set point
temperature is saved in memory.
Selecting the default setpoint temperature
In order to select the default setpoint temperature
▶ Touch the "OK" button.
Display shows the default setpoint temperature, which is now
the hot water selected setpoint-temperature.
6.4.2 Solar Mode
If the appliance does not ignite, it means that the desired set
temperature would be exceeded even running at minimum
BTU. In this condition, the solar mode indicator will show on the
display.
In most cases, solar mode is activated if the inlet water
temperature exceeds the set point temperature minus 1 °F
(0.5 °C).
Solar mode/warm inlet temperature activation formula
Temp. inlet ≥ [Temp. set - 1 °F (0.5 °C)]
Ex.: 111 °F (43.9 °C) ≥ [112 °F (44.4 °C) - 1 °F (0.5 °C)]
Table 19
Greentherm T9800 SE 160/199 | SEC 199
6720813761-06.1V
or to select the desired