OPERATION
OPERATION
6
|LWA 252 |
LWA 252 SOL
WWW.STIEBEL-ELTRON.COM
Automatic mode
DHW heating in accordance with a time switch program.
Changeover between day temperature and setback temperature.
When flashing, the heat pump idle time is counting down.
Application: To reduce the DHW temperature during the day,
so that the maximum solar yield can be achieved with the solar
version.
Constant day mode
DHW heating is held constantly at the day temperature.
Application: For maximum DHW convenience.
Constant setback mode
DHW heating is held constantly at the setback temperature.
Fault message (flashing)
Indicates faults in the system.
4.6
Equipment menu (control level 2)
Select the required parameter with the rotary selector.
Example:
VENTILATION
VENTILATION
Under parameter
ROOM TEMP
you can check the current
temperature of the assigned reference room on the display subject
to the connection of remote control RC 1 with room temperature
sensor.
With parameter
VENTILATION
, you can adjust the operating modes
for ventilation operation.
With parameter
DHW TEMP
, you can allocate a set day and night
temperature to the temperature inside the DHW cylinder.
With parameter
SOLAR TEMP
you can assign the temperatures for
solar operation.
You can adjust the time and summertime with the parameter
TIME/DATE
menu item. At the factory, summertime is set to begin
on 25 March and to end on 25 October.
You can set holiday programs with the
HOLIDAY
parameter. In the
holiday program, the heat pump system operates in setback mode.
You can extend the day mode by a few hours with the
PARTY
parameter.
In parameter
TEMPERATURES
, you can scan the sensor temperatures
of the ventilation and heat pump system, comparing set with
actual temperatures.
In parameter
VENTILAT PROG
you can adjust the times for the day
and setback temperatures for the ventilation program.
In parameter
DHW PROGRAM
you can adjust the times for the day
and setback temperatures for DHW heating.
During
COMMISSIONING
, you need to determine the settings of control
level 2 and the system-specific parameters. These parameters are
adjusted at control level 3 by your heating contractor, access to
which is protected by code.
Your contractor needs to check all parameters in sequence, and
enter all selected values into the column (system value) provided
in the commissioning report.
4.7
Adjustments at control level 2
To make any adjustments at control level 2, you must open the
control flap.
4.7.1
Room temperature
Under parameter
ROOM TEMP
the current temperature of the
assigned reference room is displayed, subject to the connection
of the remote control RC 1 with the room temperature sensor. The
ROOM TEMP
parameter will only be displayed if the remote control
RC 1 is connected.
ROOM TEMP
ACTUAL ROOM T
BACK
NIGHT COOLING
Connecting the remote control RC 1 and the outside temperature
sensor AFS 2 enables you to cool down your residence over night.
For this, your contractor needs to set parameter
NIGHT COOLING
at
control level 3
to
ON
.
