Users manual
6
Users manual for Buderus 500-24S • 07/2007
Buderus • http://www.buderus.co.uk
Subject to modifications resulting from technical improvements
9
DBA
The boiler is equipped with a boiler control unit (DBA). This is
the internal control of the boiler. The DBA is located behind the
access panel.
The DBA allows you to operate the boiler and to make adjust-
ments in its settings.
DBA overview:
1. Mains switch (see fig. 1)
Use this switch to turn the boiler on or off.
2. Reset button
B
(see fig. 1)
When a blinking code is in the display, it is possible to try and
restart the boiler by pressing this button.
3. Service Button
A
(see fig. 1)
Is used for servicing purposes only.
DO NOT use this button!
4. Display (see fig. 1)
Setting, adjustments and fault codes are displayed on the DBA
(see fig. 2).
5. Menu button
E
(see fig. 1)
The menu button
E
allows you to scroll through the menu
items.
Press the
E
button once to display the current DHW temper-
ature setting (in combination with an external hot water cylin-
der).
Press the
E
button twice to display the current setting of sum-
mer operation.
Press the
E
button three times to display the current CH flow
temperature setting.
6. and 7. Up
C
and Down
D
keys (see fig. 1)
These keys can be used for adjusting temperatures and
activating or de-activating certain summer operation.
The
C
key, when pressed, gives the current operating status
of the boiler.
fig. 1
DBA
item 1: mains switch
item 2: "reset" button
item 3: "service" button
item 4: display
item 5: "menu" button
item 6: adjusting arrow up
item 7: adjusting arrow down
2
1
7
3
4
5
6
NOTE
It is not possible to reset the boiler when there
is no fault code blinking in the display.
fig. 2
DBA display
