baltur BGN 40 DSPGN-ME Manual De Instrucciones página 29

A Gas throttle valve position reference index
B Gas modulation servomotor
STARTING UP AND REGULATION WITH METHANE
1) If not already done at the moment of connecting the burner to the gas pipeline, it is indispensable to carry out
a purge of the air contained in the pipeline. As a precaution, special care should be taken and doors and
windows should be opened. Open the pipe union on the pipeline situated near the burner and then open a
little the gas cut-off cock (or cocks). When the characteristic odour of gas can be smelled, close the cut-off
cock. Wait until the gas present in room has dispersed, and then reconnect the burner to the gas pipeline.
Subsequently, re-open the gas cut-off cock.
2) Check that there is water in the boiler and that the system's gate valves are open.
3) Check, with absolute certainty that the discharge of combustion products can take place freely (boiler and
chimney lock-gates should be open).
4) Make sure that the voltage of the electric line to which the burner is to be connected,corresponds to that
required by the burner and that the electrical connections (motor and principle line) have been prepared to
mach the voltage rating available. Also check that all the electrical connections carried out on the spot are in
accordance with our electric wiring diagram.
5) Make sure that the combustion head is long enough to enter the furnace to the extent specified by the boiler
manufacturer. Check that the device which regulates the air on the combustion head is in the position considered
necessary for the fuel delivery required (air passage between the disk and the head should be considerably
reduced when the fuel delivery is reduced; on the other hand, when the fuel delivery is fairly high, the air
passage between the disk and the head should be relatively open). See Chapter "Air Regulation on the
Combustion Head".
6) Apply a manometer with an adequate scale (if the entity of pressure forecast allows it is preferable to use a
column of water instrument, do not use a pointer instrument for moderate pressure) to the pressure plug on
the gas pressure switch.
7) With the switch on the burner's control panel in the "o" position and the main switch inserted check, by
manually closing the relay, that the motor rotates in the right direction. If it does not, exchange the places of
two cables of the motor's supply line in order to invert its sense of rotation.
8) Now insert the switch on the command panel and put the modulating switche in the MAN (manual) position.
The control box receives voltage in this way and the programmer turns on the burner as described in Chapter
"Description of Operations". To adjust the burner see the "MPA 22" electronic cam instructions in the attached
manual code 0006080902.
9) After adjusting the "minimum", (P1) bring the burner towards maximum via the controls on the MPA 22 keypad.
(see MPA 22 electronic cam instructions in the attached manual code 0006080902).
DETAIL OF GAS FEED REGULATOR
THROTTLE VALVE WITH DUNGS
SERVOMOTOR
29
N° 0002934220
REV.: 29/06/2004