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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. 45).
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. 42)
The display visualizes settings, adjustments and fault codes
(see fig. 46).
E
5. Menu button "
" (see fig. 42)
The menu button "E" allows you to scroll through the menu
items.
Pressing the E button once, the current warm start function set-
ting is displayed.
Pressing the E button again gives the current DHW tempera-
ture 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. Press the D key once to display the current
DHW flow in l/m.
Setting the warm start function
Press the menu button once.
Use the C and D keys to turn the warm start function on or
off.
Factory setting: warm start function is "on".
Setting the domestic hot water (DHW) temperature
Press E button twice then adjust the DHW temperature to
the desired temperature (40 °C - 60 °C) using the C and D
keys (see fig. 47, item 1). Factory setting is 48 °C.
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for Buderus 500 - 24/C and 500 - 28/C • 02/2005
D
" keys (see fig. 42)
fig. 45 DBA display Hi
fig. 46 DBA display
Setting
H
- ECO / cold start
I
- comfort / warm start
table 3
Warm start function
fig. 47 DBA – adjusting arrows
Boulter Buderus Ltd. • http://www.boulter-buderus.co.uk
Meaning
More energy efficient, less chance
of calcification, longer waiting
periods.
Maximum comfort due to short
waiting period for warm water.
Not as energy efficient as the cold
start and there is more chance of
calcification.
2
1
2
33
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