8
Heating system servicing
Logano GB125 BE US/CA - Technical specifications are subject to change without prior notice.
43
V
Clean the inside of the heat exchanger system with
plastic cleaning brush [1] (brush available separately).
V
Vacuum out visible and loose combustion residue
under the cleaning access cover.
V
Check the gasket of the cleaning access cover and
replace if damaged or hardened.
Fig. 43 Brushing out the heat exchanger system
(viewed from above)
1
Plastic cleaning brush (available separately)
Wet cleaning can also be carried out in addition. Follow
the same procedure as described for cleaning with the
brush.
Danger:
Risk of fatal injury from escaping
flue gases!
V
When refitting the cleaning access cover,
take care to ensure it is seated correctly
and seals properly!
Caution:
Risk of system damage due to use
of incorrect brushes!
V
Use only the cleaning brushes suitable for
the heat exchanger system.
Avoid damaging the flue gas temperature
sensor.
Caution:
Risk of system damage from
chemical cleaning agents!
V
When wet cleaning the heat exchanger,
use only water or cleaning agents
approved by Buderus.
V
Refit cleaning access cover and gasket.
V
After completing cleaning, check any con-
nections that were disconnected for leaks.
Observe the instructions of the cleaning
agent. Under some circumstances you may
have to proceed differently from the method
described here.
Caution:
Risk of system damage from corro-
sion and short-circuit.
V
When wet cleaning protect electrical
components including the flue gas safety
limiter (STB) from moisture and chemi-
cals.
