Maintenance - elco CB-P2.170 G-U/TCG KN Betriebsanleitung

Servicing

Maintenance

Burner and boiler servicing must only be
carried out by a professionally qualified
heating engineer. The system operator is
advised to take out a maintenance
contract to guarantee regular servicing.
Attenzione
• Switch off the power supply before all
maintenance and cleaning work and close
the gas shut-off valve.
• The blast tube and firing head may be
hot.
Checking the exhaust gas temperature
• Check the flue gas temperature at regular
intervals.
• Clean the boiler if the flue gas
5
Fan assembly
Observe the positioning diagram above when
replacing the motor and blower wheel. The
inside flange A of the blower wheel must be
fitted at the same level as the equipment
plate B. Insert a straight edge between the
wing of the blower wheel and set A and B to
the same height, tighten the set screw on the
blower wheel (maintenance position 1).
temperature is more than 30°C above the
value measured at the time of
commissioning.
• To simplify the check, use a flue gas
temperature indicator.
Burner maintenance positions
• After removing the screws 5 turn the burner
and pull it out of the flange. It is possible to
fix the burner in three positions for
maintenance.
Position 1
Maintenance line air
(cleaning/substitution fan)
1
Resetting the maintenance indicator
The maintenance symbol appears on the
control unit display after 30,000 start-ups.
This is why it is necessary to reset the
maintenance counter after each service. To
do this, press the control unit unlocking
button for at least 9 seconds.
05/2014 - Art. Nr. 420010540302
Position 2
Burner head maintenance.
Position 3
Maintenance components.
2
Maintenance on the burner
• Check gas supply components (tubes,
lines) and their connections for leaks
or signs of wear, replace if necessary.
• Check electrical connections and
connection cables for damage,
replace if necessary.
• Check gas filter, clean or replace as
necessary.
• Clean fan wheel and housing and
check for damage.
• Check and clean the mixing unit.
• Check ignition electrodes block,
readjust or replace as necessary.
• Start burner, check flue gas data,
correct burner settings if necessary.
• Check the setting for air pressure
switch and gas pressostat.
• Check the gas train settings.
• Carry out an operating check.
3
en
79