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5. MAINTENANCE
Routine boiler maintenance is to be scheduled according to current laws and regulations.
Appropriate boiler maintenance ensures efficient operation, environment preservation, and safety for people, animals and objects.
All maintenance and repair procedures are to be carried out by qualified personnel.
The manufacturer recommends Customers to contact an authorized Service Centre for all maintenance and repair procedure as they
are best trained for the purpose.
Before implementing any maintenance procedure, involving replacement of components and/or cleaning inside
parts of boiler, disconnect electric power supply.
Maintenance schedule
Routine maintenance schedule are to include the following:
- check general integrity of the boiler;
- check boiler and network gas supply for leakage;
- check gas supply pressure to boiler;
- check minimum and maximum gas pressures to boiler nozzles;
- check boiler ignition sequence;
- check boiler combustion parameters by way of flue gas analysis;
- check flue gas system for integrity, good state of preservation, and leakage;
- check draught stop device for good state of preservation (CTN);
- check absence of flue gas reflux in the room and correct flue gas discharge (CTN);
- check operation of safety thermostat installed on the draught stop (CTN);
- check air intake/flue gas pressure switch operation (CTFS);
- check integrity of safety devices of the boiler in general;
- check water leaks and oxidized areas on the boiler’s couplings;
- check efficiency of the system safety valve;
- check expansion vessel loading pressure;
- check water pressure switch efficiency.
The following cleaning is to be done:
- cleaning of boiler internal areas;
- cleaning of gas nozzles;
- cleaning of air intake and flue gas exhaust system (CTFS);
- cleaning of draught stop device (CTN);
- cleaning of ventilation grille in the boiler room (CTN);
- cleaning of flue gas side of the heat exchanger.
When checking the boiler for the very first time, also verify:
- boiler room suitability;
- air vents in the boiler room (CTN);
- diameter and length of flue gas system ducts;
- boiler installation in accordance to this “Installation use and maintenance” manual instructions;
Should the boiler not correctly operate, while not posing danger to people, animals or property, notify the
system supervisor both verbally and in writing.
