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5 TESTING THE HEATING UNIT
5.1 Preliminary checks
Before starting up the heating unit, carry out the following checks:
- Make sure the heating unit has been installed in compliance with
legal requirements.
- Make sure the flue gas discharge pipe is installed correctly.
When the heating unit is switched on, there must be no leakage
of combustion products from any of the seals.
- Check that the supply voltage is 230 V - 50 Hz.
- Make sure the system is full of water (water pressure 0.8-1 bar).
- Make sure any cut-off valves in the system are open.
- Make sure there are no oil leaks.
- Switch on the main switch.
- Check that the safety valve is not blocked.
- Check for water leaks.
If the heating unit is not installed in compliance with the relevant
laws and standards, do not attempt to switch it on and inform the
Service Centre.
5.2. Switching on and off
For instructions on how to switch the heating unit on and off, refer
to the “User Manual”.
6 MAINTENANCE
In order to ensure correct and efficient heating unit operation, have it serviced according to the following schedule and complying to the
legal requirements.
Correct maintenance allows for efficient and correct functioning of the equipment, granting the better working conditions, optimizing
performance and safety for people, animals, things and environment.
All maintenance and repairs must be carried out by a properly qualified service engineer.
It is advisable for the heating unit to be serviced and repaired by an authorised Service Centre, which can provide properly trained quali-
fied personnel.
Before carrying out any maintenance involving the replacement of components or cleaning inside the unit, always turn off the main
switch.
6.1 Maintenance schedule
Periodic maintenance covers the following
Checks and Inspections
- Perform a general check and inspection of the heating unit.
- Check the oil supply circuit for leaks.
- Check that the heating unit switches on correctly.
- Check the combustion parameters by means of flue gas analyses.
- Check the condition, state and tightness of the flue gas discharge pipes.
- Check that all the safety devices are intact and operational.
- Check the fittings for water leaks and oxidation.
- Check the efficiency of the safety valve.
- Check the safety thermostat.
- Check the contents of the expansion vessel
Cleaning operations:
- Clean the inside of the heating unit.
- Clean the burner and reset if necessary (see par. 4.4 “Regulating combustion”).
- Clean the ventilation grille in the room in which the unit is installed.
- Clean the heat exchange on the flue gas side.
When repairing or servicing the unit for the fist time, perform the following checks:
- Make sure the room of installation is suitable.
- Check the ventilation openings.
- Check the diameters, length and state of the flue gas discharge pipes .
- Make sure the heating unit is installed according to the instructions in this manual.
If the heating unit does not operate correctly or is likely to cause a hazard for people and animals or damage to property, inform
the Service Centre and fill in the relevant form.
