Ferroli Pegasus LN 2S Serie Mode D'emploi, Installation Et Entretien page 35

Pegasus LN 2S
The gas pressures measured at the burner gas manifold should be read at least 30 seconds after making
the adjustments, i.e. when the flame has stabilized.
On completing the adjustment operations, turn the burner on and off 2 - 3 times with the adjustment thermostat
and check that the pressure values are the ones you have just set; if this is not so, you need to make another adju-
stment to bring the pressures to the right values.
Gas supply conversion
The unit can function with either Natural gas (G20-G25) or liquid gas (G30-G31) and is factory-set for use with one
of the two gases, as clearly shown on the packing and dataplate. Whenever the unit has to be used with a different
gas, a conversion kit will be required, proceeding as follows.
From natural to liquid gas
1 Replace the nozzles at the main burner and pilot light, inserting the nozzles specified in the technical data table
in chap. 4.3.
2 Remove the small plug 3 (Fig. 9) from the gas valve, screw the ignition "STEP" regulator 2, contained in the co
version kit, onto the valve and put the plug 3 back onto the regulator.
3 Adjust the burner gas pressures, as described in the above paragraph, setting the values given in the technical
data chart in paragraph 4.3.
4 Operations 2 and 3 must be performed on all the valves.
5 Apply the sticker, contained in the conversion kit, near the dataplate as proof of the conversion.
>From liquid to natural gas
Carry out the same operations explained above, taking care to remove the ignition "STEP" regulator 2 in fig. 9 of
the gas valve; the plug 3 in fig. 9 must be fitted directly onto the valve.
Main components key
1 Pressure point upstream from the valve
2 Ignition "STEP" regulator for liquid gas
3 Plug
4 Safety cap
5 Pressure adjustment screw for maximum
power
6 Pressure adjustment screw for minimum
power (1st stage)
7 "O RING"
EN
Opening the safety cap
Cod. 3540G310 - 03/2007 (Rev. 02)
Valve
Honeywell
VR 4601 CB
fig. 9
Decrease
Increase
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