8
Heating system servicing
Logano GB125 BE US/CA - Technical specifications are subject to change without prior notice.
41
V
Seal the pressure testing nozzle for the combustion
chamber pressure.
Recommissioning after cleaning with brushes
When the boiler is recommissioned after cleaning with
brushes, proceed as follows:
V
Plug burner cable connector into burner.
V
With balanced flue operation, attach combustion air
hose to the burner.
V
Prepare the heating system for operation.
8.3.2
Wet cleaning (chemical cleaning)
When wet cleaning, use a Buderus approved cleaning
agent appropriate for the degree of soiling (soot or scale).
Follow the same sequence as described in Chapter 8.2,
page 39 and Chapter 8.3, page 40.
V
Cover the programming unit with foil to prevent spray
getting into the programming unit.
V
Spray cleaning agent evenly into the heat exchanger
heater flues.
V
Close burner door and start up the heating system.
V
Heat the boiler to a temperature of at least 160 °F.
V
Shut down the heating system.
V
Brush out the heat exchanger heater flues.
V
Start up the heating system again (see above).
Observe the instructions for use of the clean-
ing agent. You may need to proceed differ-
ently from the method described here in
some circumstances.
Caution:
Risk of damage from corrosion and
short-circuit.
V
When wet cleaning protect electrical
components including the flue gas safety
limiter (STB) from moisture and
chemicals.
