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2
Commissioning
The boiler operates at full load when the Service button "A" is
pressed again. An open-end spanner "F" appears in the top
left hand corner of the display.
Press the C button if you want to make sure that the boiler is
actually operating at full load ('Hi' appears in the display,
fig. 48).
The boiler returns to regular operation when the Service button
"A" is pressed once again or after the boiler has operated at
partial- or full load for 30 minutes.
4. Display (see fig. 45)
The display visualizes settings, adjustments and fault codes
(see fig. 49).
E
5. Menu button "
" (see fig. 45)
The menu button "E" allows you to scroll through the menu
items.
Pressing the E button once, the current DHW temperature (in
combination with an external hot water cylinder) setting is
displayed.
Pressing the E button again gives the current setting of
summer operation.
Pressing the E button once more gives the current CH flow
temperature setting.
C
6. and 7. Up "
" and Down "
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.
Setting the domestic hot water (DHW) temperature (in
combination with an external hot water cylinder)
Press E button once then adjust the DHW temperature to
the desired temperature (40 °C - 60 °C) using the C and
D keys (see fig. 50, item 1). Factory setting is 48 °C.
Setting the boiler to summer operation
When you want to make sure that your boiler will not operate
for central heating in the summer then you can set the boiler to
summer operation. The boiler will then only operate for DHW
(in combination with an external hot water cylinder).
Press the E button (see fig. 50, item 2) twice.
The current setting blinks.
Use the C or D keys to adjust to desired setting.
Central heating is on.
Central heating is off (summer operation).
DHW is still available (when external hot water
cylinder is used).
NOTE
When summer operation is active then the
boiler will not operate for central heating until
summer operation has been deactivated.
Buderus • http://www.buderus-domestic.co.uk
34
D
" keys (see fig. 45)
Installation and maintenance instructions for Buderus 500 - 24/S • 08/2006
fig. 48 DBA display Hi
fig. 49 DBA display
fig. 50 DBA – adjusting arrows
Subject to modifications resulting from technical improvements!
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