Installation manual

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• Check the soundness of the gas circuit
• Check that there is no presence of water leakage from the boiler internal connections
• Check that the condensing trap is free from obstructions, that there is a sufficient
quantity of water inside and that the evacuation of the condense is correct.
It Is better to avoid frequently draining of the system unless for specific alterations or
repairs.
In the areas subjected to freezing, the system should be drained when in disuse. This
operation can only be avoided with the addition of antifreeze solution.
Attention. If the boiler works with the condense trap empty the combustion smokes enter
in the room and a dangerous situation shall arise. To avoid this situation do the following :
• Check that the condensing trap contains water at least at the level that makes
impossible for the flues to exit.
• If it is not so fill the trap with water at the maximum level
• See that the safety and checking devices are not tampered or short-circuited
• Check the integrity of the boiler wiring.
• Check that the gaskets of the coaxial flue outlet system or of the separate flue outlet
system are sealed.
3.11 Maintenance of the burner and heat exchanger
The condensing boilers require a very low level of maintenance. It is sufficient to clean
every year burner and heat exchanger. These operations carry out following the
indications and pictures:
1) Remove two screws that keep blocked the front cover of the boiler
2) Pull on the front cover of the boiler
- To remove the heat exchanger plate:
a) Unlock panel board e turn on it to lower part
b) Screw out the three screws that block the heating exchanger plate (fig. 1-2). To
avoid to knock down the gaskets block with a hand the heat exchanger when you
are screwing out the last (fig. 2)
c) Draw out gently the heat exchanger from their seats (fig. 3)
d) Pass the heat exchanger through wiring and pump (fig. 4-5).
fig. 1
fig. 2
fig. 3
fig. 1
fig. 2
fig. 3