Riello P 300 P/N Instructions Pour Installation, Utilisation Et Entretien page 74

- The burner is not in operation.
- P oil pressure switch: it is adjustable between 2 and 15 bar, in case of excessive back pressure, it makes the
burner go to lock out (advisable setting 5 bar).
IMPORTANT
- Periodically clean the filter of the pre-heater tank.
- Verify that the nozzle is without filter.
- Print on the data label, into the corrispond-
ent cell, the kind of performance: two stage
pregessive or modulating.
5507
HYDRAULIC LINE SCHEMA
18
GB
D2009
D2011