Like all the other dual fuels models, this series perfectly combine the mechanical devices and systems typical of gas burners with the ones of light oil burners. In this way this series can burn the two flues separately. This is possible because these burners are equipped with an independent electric motor for the activation of the oil pump. As a consequence during gas firing, the oil pump motor does not operate and remains off. They are equipped with a high performance combustion head designed to achieve the maximum efficiency when they work on natural gas; combustion head is also equipped with a by-passing nozzle which, using a pressure regulator, can reach a turndown ratio 1:3. The control panel is printed with a mimic diagram fitted with neon lamps to indicate the different stages of the burner operation. The burner is provided by an UV photocell to detect the flame during operation. Back-pressure in combustion chamber (mbar)

Pump motor Gas connections kW For the configuration of the gas train, see page 113 DESCRIZIONE DESCRIPTION CONTROFLANGIA CONTROFLANGIA COUNTERFLANGE COUNTERFLANGE CONTROFLANGIA COUNTERFLANGE MODELLO BRUCIATORE/ MODEL BURNER / SCALA SCALE DATA / DATE DISEGNATO DRAWN DATA / DATE APPROVATO APPROVED FORMATO SIZE FOGLIO SHEET RIFERIMENTO CLIENTE / CLIENT REFERENCE DIMENSIONAL DRAWING CODICE DISEGNO / DRAWING NUMBER TUTTI I DIRITTI SONO RISERVATI E PROPRIETA' DI CIB UNIGAS S.P.A. SENZA CONSENSO SCRITTO DI CIB UNIGAS S.P.A. QUESTO DISEGNO NON PUO' ESSERE RIPRODOTTO O IN ALCUN MODO ESSERE UTILIZ ZATO...

C92A C120A...SP tecnopress SERIES Back-pressure in combustion chamber (mbar) Back-pressure in combustion chamber (mbar) Minimum inlet gas pressure (mbar) Minimum inlet gas pressure (mbar) Attention: the graph shows the value of the gas output (kW) against the corresponding pressure without the combustion chamber back pressure. To know the miniRp 1”1/2 (40) mum gas pressure at gas train, in order to get the gas output, it is necessary to add the boiler back pressure to the value read on the curve. Rp 2” (50)