baltur Minicomist 7, Инструкция по эксплуатации

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NATURAL GAS / LIGHT OIL DUAL FUEL BURNERS
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FITTING THE BURNER TO THE BOILER AND CONNECTING THE GAS PIPE
The burner is fitted with a sliding attachment flange on the burner head. When fitting the burner to the boiler, this
flange must be correctly positioned is that the burner head penetrates the boiler by the amount specified by the
manufacturers of the boiler.
When the burner is fitted correctly to the boiler, proceed whit the connection of the gas feed pipe (see
BT 8780 and BT 1387).
The size of the gas feed pipe must be proportional to its length and to the gas delivery rate in accordance with the
UNI standard (see diagram), and it must be perfectly airtight and properly tested before running the initial tests on
the burner.
It is essential to fit a connector to this pipe, near to the burner, for the easy dismounting of the burner and/or the
opening of the boiler door.
FOR BURNERS WITH DUNGS GAS VALVE mod. MB.....
The DUNGS mod. MB.... valve has a filter and
gas pressure stabiliser, which means that only the
cut-off cock and the vibration damper joint should
be fitted to the gas feed pipe. A pressure reduction
unit should be installed outside the heating system
only in cases where the gas pressure exceeds
the level permitted by the standard (400 mm.C.A.).
It is recommended to put a bend directly on the
burner gas train before fitting the detachable
connector. This is to allow the opening of the boiler
door, when the connector itself has been opened.
These details are clearly illustrated in the following
diagram.
HYDRAULIC CONNECTIONS (LIGHT OIL)
The connection pipes between tank and burner must be completely tight.
We suggest to use copper or steel pipes of an adequate diameter (see list and drawing).
At the rigid pipes ands it must be fitted the fuel’s detection gates.
Filters, flexible pipes and relative connection couplings are supplied along with burner.
Pump is equipped with suitable connecting points (see drawing) for detection instruments (pressure gauge and
vacuummeter). Pressure drop in suction must not exceed 4,6 mm.W.G. = to 35 cm.Hg. for a proper and silent
operation. Probable max. pressure on suction and on the return 1,5 bar.