Buderus 500 - 28/C Servicing Manual page 74

7 Actions
box 282
1
JP1 JP2
Disconnect the five plugs (harness - item 1, JP1, JP2, JP4
and JP3) from the DBA control panel.
box 283
Remove the DBA control panel.
Fit the new DBA control panel, following the above
A
procedure in reverse order.
CAUTION!
Please ensure that the new DBA control panel is fitted
with the correct KIM (see box 284). The coloured stripe
on the new KIM should match that of the old KIM.
Otherwise, refit the old KIM to the new DBA control
panel.
Fit the casing and place the boiler into operation,
see box 51, 54 or 55.
We reserve the right to make technical modifications
74
JP4 JP3
Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C • Issued 02/2006
box 284 Check the EEPROM (KIM)
Check the plug-and-socket connection on the EEPROM
(KIM).
box 285 Check the junction box – 230V room-
temperature connection
1
2
Remove the casing lock and lower the DBA.
Remove the cover from the RTH converter/Junction box
(item 1).
Run the 230V power supply cable through the cable
pipework.
Connect the 230V cable to item 1. The switch live should
be connected to terminal 1 and the Neutral to terminal 2 of
the 230V connection (item 2).
Buderus Ltd. • http://www.buderus-domestic.co.uk
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