Regulating The Primary Air; Regulating The Pilot Flame; Checking The Main Burner; Regulation For Operation With Other Types Of Gas - OFFCAR 700 Serie Bedienungs- Und Wartungsanleitung

TABLE 4 – Permissible thresholds for the gas feed pressure
Gas
Natural gas (metano) G20
Liquid gas (LPG) G30/31
4.2 Regulating the primary air (Fig. 3)
The primary air is regulated correctly if the stability of the flames is ensured, i.e.
if flame lifts do not appear with the burner cold and if there is no flame return with
the burner hot.
The distance foreseen for regulation of the primary air is shown in Figures 3 and
indicated in table 2. Unscrew the injector "C" with a 12 mm spanner and mount
the appropriate injector. Check the exact distance "X" for the primary air.

4.3 Regulating the pilot flame

Regulate and check whether the flame envelops the thermocouple and that its appearance is correct. If this is not the case,
check that the injectors mounted are the right ones (table 2).

4.4 Checking the main burner

Switch on the appliance and check that the flame, lighting and regulation of the minimum are correct. If this is not the case
check the injectors and the position of the primary air.

5. REGULATION FOR OPERATION WITH OTHER TYPES OF GAS

In order to perform this operation the injectors have to be changed and the reduced capacities and position of the primary air
regulated as indicated below.
5.1 Replacing the injector of the main burner
In order to change the injector "C" (Fig. 3) remove, by pulling it, the control panel. Using a spanner unscrew the injector and
replace it according to table 2.
5.2 Replacing the injector of the pilot flame (Fig. 4)
The pilot flame is only accessible after having removed the control panel. It has a
fixed injector and no regulation of the primary air is required. In order to change
the injector unscrew the attachment nut "DE" and replace the injector, according to
table 2.
5.3 Regulating the reduced capacity (Fig. 5)
Unscrew the screw "F" of the minimum and turn it until the reduced capacity
indicated in table 2 is obtained. Check that the quantity of gas is sufficient for
maintaining a stable and even minimum and for resisting the change from maximum
to minimum capacity.
To adjust correctly, follow this procedure.
For liquid petroleum gas (LPG) (G30-31) turn the screw to minimum.
-
For gas G20: adjust the bypass screw until the correct minimum has been
-
obtained and check that the minimum flame is stable over all the burner surface
and check that the flame does not go out or back fire when it is lowered from
maximum to minimum.
Caution: before using the appliance the plate has to be cleaned with hot water and detergent.
The appliance has to be used by qualified staff, since it is an appliance intended solely for professional kitchens. It also has
to be used under supervision and only for grilling food.
6.1 Lighting the pilot flame (Fig. 6)
Press on the knob "G" and turn it to the left as far as the pilot flame lighting position.
Keep the knob pressed and at the same time press button "H" for ignition battery. After having lit the pilot flame keep the
knob fully pressed for approximately 10/20 seconds in order to heat the thermocouple, after which release it.
nominal
20
28 - 30/37

6. OPERATING INSTRUCTIONS

10
Supply pressure [mbar]
min
17
20/25
max
25
35/45
Fig. 3
Fig. 4
Fig. 5