User manual

● Wair about 20 seconds, then release the valve

knob and the burner should stay lit – the ame is

vidible through the special hole in the panel behind

the dispenser units.

N.B.

Should the burner not light up, do not persist, but

release the valve knob, and then check that lighter

spark on the burner is in order and about 5 mm

long.

Should the ame go out when te valve knob is re-

leased, check the position of thermocouple and the

circuit connected to it.

The ame should be bright blue; if not, slightly regu-

late the primary air intake (2) until the desired effect

is achieved.

Wait until the machine has the correct pressure,

according to instructions. Otherwise, adjust the gas

pressure regulator, which has two regulating screws.

The one that protrudes more (4) serves to regulate

the boiler’s operating pressure, while the other (5)

serves to set the ame at the minimum.

When the machine is pressurized, check to see

that the minimum ame is correct by adjusting the

screw (4) if necessary; after loosening the locking-

nut, unscrew the screw until it feels loose (the main

gas-pipe is closed), and check whether, under these

conditions, the low ame remains lit, thus acting as

a pilot.

If the ame is too high, it will be necessary to regulate

screw (5), turning it slightly clockwise, of course after

having loosened the locking-nut. If, on the contrary,

the ame tends to go out, then regulate screw (5) by

turning it anti-clockwise, until a very low, but constant

ame is obtained. Having achieved this correct adju-

stment of the minimum ame, hold the screw still and

lock it with the locking-nut.

Then rotate the screw (4) clockwise until there is a

there is a high ame, and wait for the boiler to reach

the desired operating pressure: if the ame dies

down before reaching the required pressure, tighten

screw (4) further; if the ame dies down at a higher

pressure, then unscrew the screw.

Check once or twice by opening the steam tap to

release the pressure in the boiler, then hold screw

(4) still and lock it with the locking-nut.