32
Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
Buderus • http://www.buderus-domestic.co.uk
Subject to modifications resulting from technical improvements!
Commissioning
2
The display shows (fig. 26, item 2) “
-.
” to indicate that
the gas supply system is purged of air. Return chimney
sweep switch to position “
0
”.
2.2.3 UBA adjustments
The boiler is equipped with a UBA. This is the internal
control of the boiler. The UBA is located behind the door.
The UBA allows you to operate the boiler and to make
adjustments in its settings.
UBA overview:
1. Power switch (see fig. 27, item 1)
Use this switch to turn the boiler on or off.
2. Reset button (see fig. 27, item 2)
When a blinking code is in the display, it is possible to try
and restart the boiler by pressing this button.
3. Service Button (see fig. 27, item 3)
When the service button is pressed, the second digit of
a code can be seen.
4. Display (see fig. 27, item 4)
The display visualizes settings, adjustments and fault
codes.
5. Heat-capacity Jumper (see fig. 27, item 5)
Do not use.
6. Chimney sweep switch (see fig. 27, item 6)
The chimney sweep switch when set to '1' places the
boiler in Service mode. This means that the boiler
operates at full load without there being an actual heat
request. This setting is used for sevicing purposes only.
7. Pump over-run time switch (see fig. 27, item 7)
The Pump over-run time switch is not applicable to this
boiler.
Fig. 26 Display and chimney-sweep switch
1
2
10
0
1
11
KW
10
1
1
1
2
3
Fig. 27 UBA
item 1:
Power switch
item 2:
Reset button
item 3:
Service button
item 4:
Display
item 5:
Heat-capacity jumper (do not remove)
item 6:
Chimney sweep switch
item 7:
Pump over-run time switch (not applicable for this
boiler)
item 8:
Heating capacity controller
item 9:
DHW temperature controller / Service capacity
controller (used in service mode only)
item 10:
Flow temperature controller
1
2
3
4
5
6
7
8
9
10
NOTE
It is not possible to reset the boiler when
there is no fault code blinking in the
display.
