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TP3 COND
7.
STARTUP
7.1 Preliminary checks
After carrying out the plumbing, electrical and
fuel connections to the boiler, before startup
make sure:
• The expansion vessel and the safety valve (if required) are properly connected and cannot be shut off in any way.
• The bulbs of the operation, safety and minimum thermostats and the thermometer are secured within their respective sheaths.
• The turbulators are positioned in all the flue gas pipes
• The system is filled with water and completely vented.
• The pump/pumps work properly.
• The hydraulic, electrical, safety and fuel connections comply with the current national and local regulations.
• The burner is mounted according to the instructions contained in the manufacturer's manual.
• The mains voltage and frequency are compatible with the burner and the boiler's electrical equipment.
• The system can absorb the amount of heat produced.
7.2 First ignition
After the positive outcome of the checks described above, it is possible to proceed with first ignition of the burner, which must be done by a
technician enabled and approved by the burner Manufacturer.
The technician assumes all responsibility regarding the calibration range within the boiler's declared and approved power range. After ope-
ning the fuel shut-off valves and making sure there is no leakage in the feed network, turn all the switches ON. The burner is thus arranged
for first ignition and for adjustment to be carried exclusively by the qualified technician. During first ignition, make sure the door, burner
flange and the connections to the flue are tight and that the base of the flue has a slight negative pressure. The fuel flow must match the
boiler rating and under no circumstances should it exceed the declared maximum rated power value.
7.3 Boiler shutdown
• Adjust the operating thermostat to minimum.
• Turn off the power to the burner and the fuel supply.
• Allow the pumps to run until they are stopped by the minimum thermostat.
• Turn off the power to the electrical panel.
8.
MAINTENANCE
8.1 General rules
Periodic maintenance is essential for the safety, efficiency and service life of the unit. All operations must be carried out by qualified person-
nel. All cleaning and maintenance operations must be preceded by turning off the fuel supply, after disconnecting the power.
To ensure proper operation and maximum boiler efficiency, regularly clean the combustion chamber, flue gas pipes and smoke chamber.
8.2 Routine maintenance
Maintenance depends on the fuel used, the number of ignitions, system characteristics, etc., therefore a maintenance frequency or sche-
dule cannot be fixed beforehand. In principle, the following cleaning intervals are advisable once a year.
In any case, the local regulations regarding maintenance must be observed. During routine maintenance, after removing the turbulators the
tube bundle and firebox must be cleaned using a brush. Remove the accumulated deposits in the smoke box through the opening of the
inspection doors. If necessary, remove the rear smoke chamber and replace the smoke seal if deteriorated. Make sure the condensate drain
is not obstructed. Check the proper functioning of the generator control and measurement parts, and also the amount of replenishing water
used. After analyzing the water, carry out preventive descaling. With repeated topping up, the calcium and magnesium salts dissolved in the
raw water form deposits in the boiler and cause overheating of the plates with possible damage that cannot be attributed to the materials or
the construction technique and therefore not covered by warranty. After carrying out maintenance, cleaning and subsequent lighting, check
the door and smoke chamber seals and replace them in case of leakage of combustion products.
The operations carried out will be recorded in the heating system maintenance booklet.
8.3 Extraordinary maintenance
Extraordinary maintenance at end of season or for long periods of non-use.
It is necessary to carry out all the operations described in the previous section, and also:
• Check turbulator wear.
• Do not empty the system and boiler.
The operations carried out will be recorded in the heating system maintenance booklet.
cod. 30902850 - Rev 06 - 04-2022
67
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