Buderus 600 - 11R Installation And Servicing Instructions page 57

Swivel the gas-air unit forward (fig. 54, item 1)
Remove the gas-air unit from its bayonet connector
and pull upwards to detach (fig. 54, item 2).
Detach the fan by loosening the 2 x 2 screws on the
connection unit.
Replace the fan.
Refit by following the above procedure in reverse.
NOTE
Once installation has been completed
successfully, carry out leak testing as per
subsection 2.2.1.
5.3.6 Checking the wiring connections of the UBA
Disconnect the system from the power supply.
Loosen the two fixing screws and carefully turn the
UBA around (fig. 49, item 1, page 55).
Check all cable terminals for tightness and
resecure/retighten as required.
Turn the UBA around and place back onto the
bracket.
Tighten the two screws.
Connect system to mains power supply.
Subject to modifications resulting from technical improvements!
Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
2
Fig. 54 Replacing the fan on the 600 Series:
remove the gas-air unit
Fig. 55 Replacing the fan on the 600 Series:
replace the fan
Fig. 56 Checking the wiring connections of the UBA
Buderus • http://www.buderus-domestic.co.uk
Servicing 5
1
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