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We reserve the right to make technical modifications
Buderus Ltd. • http://www.buderus-domestic.co.uk
Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C • Issued 02/2006
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box 264
z
Pull the heat exchanger towards the arrow to remove.
box 265
z
Check the seal on the heat exchanger casing (item 1) for
signs of ageing and replace if required.
z
Replace the four O-rings (item 2), two on each side.
1
2
box 266
z
Clean the heat exchanger with compressed air, a high-
pressure hose or with water and a soft brush.
A
CAUTION!
When cleaning the heat exchanger
never
use a steel
brush.
A
CAUTION!
When using compressed air:
Use eye protection, inhalation protection and hearing
protection.
box 267
A
CAUTION!
Observe the position of the heat exchanger during
fitting. Insert the upper section of the heat exchanger at
the top.
z
Fit the new or cleaned heat exchanger and all other
components by following the above procedure in reverse.
A
CAUTION!
The released coil (item 1) touches the underside.
A
CAUTION!
Insert a new heat exchanger-gas/air seal before fitting
the gas/air unit.
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