BIEMMEDUE CH 100 Manual De Instrucciones página 27

follows:
• Make sure that all connections are complete and tight.
• If there are traces of dirt or corrosion, clean or replace the
connections if necessary.
• Replace any damaged wires or connectors if necessary
6.5 CHECKING AND TESTING THE BURNER
To reach the burner:
• Remove the two side fixing screws (A) on the fan group, slide the
fan group (B) backward and rotate it downward.
• Remove the burner and follow the checking and cleaning
instructions in the burner manual.
• In particular, check that all parts of the combustion head are in
perfect condition, not deformed by the high temperature,
completely clean, and correctly positioned. Clean the combustion
head in the fuel outfeed zone
• Replace the nozzle if necessary
• Reinstall the burner.
• Run the procedures described in paragraphs 4.7 and 4.8 to
measure combustion parameters and check that combustion is
stable and clean.
6.6 CHECKING THE THERMOSTATS
Inspect the fan thermostat and manual reset safety thermostat as
follows:
• Remove the side inspection panel
• Find the two thermostats attached to the front wall of the
combustion chamber
• Clean with a dry cloth, taking care not to damage the thermostats
• Close the side inspection panel
Inspect the burner thermostat as follows:
• Remove any air outlet connection ducts
• Clean with a dry cloth, taking care not to cut or bend the capillary
tube.
6.7 CLEANING THE INTERIOR OF THE HEATER
For thorough cleaning, the heater can be cleaned and washed inside
and outside with water. Always do as follows:
• disconnect the electrical cable and remove it from the outlet
• completely close all access panels
• do not use water jets at a pressure exceeding 70 bar at a distance
less than 30 cm
• completely dry all parts before reconnecting the electrical cable
L-L294.01-BM
EN
6.8 CLEANING THE COMBUSTION CHAMBER
To maintain the burner's high efficiency and prolong its life, the
procedure described in this paragraph must be done at least once at
the end of the work season or more frequently if there is an
excessive build-up of soot. Excessive soot may be caused by poor
chimney draught, poor fuel quality, poor regulation of the burner, or
more or less frequent alternation of burner starts and stops. Pay
attention during operation: pulsations at start may be due to
excessive amounts of soot.
To access the combustion chamber:
• Remove the two side fixing screws (A) on the fan group, slide the
fan group (B) backward and rotate it downward.
• Remove the burner
• Clean with compressed air or a metal brush
Warning
After any technical work, always check that the heater
works correctly.
7. TROUBLESHOOTING
In the event of serious anomalies, various safety devices are able to
block the machine's operation and signal the same:
• on the electrical panel
the blocking signal following intervention by the safety
thermostat: the reset button is located on the thermostat
F+L1+L2 box.
(for three-phase models only) the blocking signal following
intervention by the motor thermal protection: the reset
button is located inside the electrical panel.
• on the burner
the blocking signal following intervention by the burner's
flame control box.
Warning
NEVER do more than two restarts in a row: unburned fuel
can accumulate in the combustion chamber and suddenly
flare up at the next restart.
If the heater is still not working properly, please contact your
nearest dealer or authorized Service Centre.
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