Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
57
Subject to modifications resulting from technical improvements!
Buderus • http://www.buderus-domestic.co.uk
Servicing
5
z
Swivel the gas-air unit forward (fig. 54, item 1)
z
Remove the gas-air unit from its bayonet connector
and pull upwards to detach (fig. 54, item 2).
z
Detach the fan by loosening the 2 x 2 screws on the
connection unit.
z
Replace the fan.
z
Refit by following the above procedure in reverse.
5.3.6 Checking the wiring connections of the UBA
z
Disconnect the system from the power supply.
z
Loosen the two fixing screws and carefully turn the
UBA around (fig. 49, item 1, page 55).
z
Check all cable terminals for tightness and
resecure/retighten as required.
z
Turn the UBA around and place back onto the
bracket.
z
Tighten the two screws.
z
Connect system to mains power supply.
Fig. 54 Replacing the fan on the 600 Series:
remove the gas-air unit
1
2
Fig. 55 Replacing the fan on the 600 Series:
replace the fan
NOTE
Once installation has been completed
successfully, carry out leak testing as per
subsection 2.2.1.
Fig. 56 Checking the wiring connections of the UBA
