Stiebel Eltron SHF 2000 Utilisation Et Installation page 7

OpEraTiON
Settings with integral room temperature controller
Note
If heat transfer (discharge) is controlled by a wall mount-
ed room temperature controller, adjust the charge level
reducer on the standard display with the "+" and "–" but-
tons.
In this respect, the following standard values apply:
Value Charge volume
0 % No charge (in summer)
30 % Approx. 1/3 of full charge during shoulder seasons (spring or
autumn)
70 % Approx. 2/3 of full charge on mild winter days
100 % Full charge on cold winter days
Once you have familiarised yourself with the appliance, you will
be able to find the correct setting as appropriate.
Room temperature-dependent charge control
(C-PLUS TECHNOLOGY)
Room temperature-dependent charge control automatically ad-
justs the charge volume to the heat demand in the room. The
required charge volume is determined subject to the room tem-
perature, fan speed and residual charge of the appliance. The aim
is that the amount of heat should still be sufficient to maintain the
set room temperature at the end of the day.
Note
- The appliance must always have a power supply.
- Charging can be enabled via the power supply util-
ity signal LF (LF signal must be connected) or the
internal clock, selectable via parameter P15 in the
configuration menu.
- It is essential that fan enabling is always switched
on.
- A charge of 60 % is achieved during commission-
ing and if the power supply is interrupted for least
8 hours.
- Room temperature-dependent charge control is de-
pendent on the conditions in the room. Sunlight and
unfavourable weather conditions may have an effect
on the charge volume.
- It may take a few days to determine the optimum
charge volume.
- If the appliance has been in setback mode for a
longer period of time (e.g. because the user has
been away from home), comfort mode will take
1-2 days to reach its set level.
- If heat transfer (discharge) is controlled via a wall
mounted room temperature controller, there may be
a reduction in comfort. The appliance lacks informa-
tion about the room temperature. We recommend
using the integral room temperature controller.
If the room is always too warm in the evenings, you can use the
charge level reducer to lower the energy level in the appliance.
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Note
With room temperature-dependent charge control, the
function of the charge level reducer differs significantly
from that described in chapter "Heat storage / Charge
control via the charge level reducer". Charging can also
take place with a setting of 0 %.
f Press the "Menu" button to open the charge level reducer in
the standard menu (see chapter "Settings with integral room
temperature controller / Standard menu").
f Press "OK". Once the "Editable parameter" symbol appears,
adjust the charge level reducer with the "+" and "-" buttons.
When the room no longer needs any heating energy, the charge
volume is gradually reduced to zero. The appliance does not start
charging again until heating energy is required in the room again.
4.3 Heat transfer
Heat transfer (discharge) is controlled either by the room tem-
perature controller built into the appliance or by a wall mounted
2-point room temperature controller (see chapter "Accessories").
The room temperature controller automatically regulates heat
transfer via the fan so that the set room temperature is maintained.
Fan enabling must be switched on for the fan to run.
Note
If you are away for several days during the heating sea-
son, it makes sense to set a reduced room temperature,
e.g. 10 °C. This setting prevents the room temperature
from falling too low (frost protection).
4.3.1 Switching fan enabling on and off
f To switch fan enabling on or off, press the "Fan" button. If
fan enabling is switched on, the fan symbol appears on the
display.
Note
With room temperature-dependent charge control, fan
enabling must always be switched on.
5. Settings with integral room
temperature controller
All settings are retained in the event of an interruption to the
power supply. This appliance is equipped with a power reserve
that ensures the day of the week and the time are saved for sev-
eral hours.
Note
If the power supply has been interrupted for more than
8 hours, you will be prompted to set the day and time
once the power is restored. "- -:- -" flashes on the dis-
play. If the operating lock is activated, press "+" and "-"
simultaneously for 5 seconds to unlock the user interface.
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