TECNOEKA Srl _____________________________________________________________ use and instruction manual
page. 12 __________________________________________________________________________________________
Measure the connection pressure: if this value is
not in the range shown in table 2 and it cannot be
brought within these values by adjusting the
pressure reducers of the gas supply system,
definitive start-up of the appliance is quite
impossible.
The gas supply Body must be informed about this.
Type of gas
Gas pressure (mbar)
Normal
Minimum Maximum
Methane gas H G20
20
17
25
LPG gas G30/G31
28-30
18-20
33-35
Table 2
Key:
T = Hose
M = “U” pressure gauge
P = Pressure take-off at entry of gas solenoid-valve
Fig. 6
After you have measured the connection pressure, disconnect the hose “T” and screw the
tightness screw of the pressure take-off “P”.
3.3 Adjustment to Other Gas
To adapt the oven to a type of gas that differs from the one tested in the factory (see technical
data plate), replace the injector of the main burner and adjust primary air inflow with the
adjustment bush. For this, disconnect the power and, after removing the lateral left panel,
access the burner and the primary air adjuster. If you do not have the necessary spare parts,
contact the manufacturer’s technical assistance service. Adaptation must be effected by
qualified personnel. Consult the technical specifications in table 1 and 3, and then replace the
main injector and adjust primary air.
3.4 Injector replacement and adjustment of primary air (Fig. 7)
WARNINGS! Before you attempt this operation, make sure you shut off the gas ON/OFF tap
located upstream of the appliance and disconnect electrical power to the appliance.
After removing the lateral left panel of the unit, carry out the following operations in series:
-
Loosen the “V” locking screw with a spanner or a screwdriver and pull out bush “B“
towards the burner Venturi pipe.
-
Using a 13 mm wrench, unscrew and replace injector “U” with the appropriate injector
for the new type of gas installed, referring to table 3 and checking if the diameter is
stamped on it.
-
Adjust air bush “B” to the correct distance H, which is the distance in millimetres
between the flat seat of the injector-holder and the adjustment bush.
-
Seal the screw and bush with paint.
-
Refit the back of the unit.
B
H
U
V
T
Key:
B = Primary air bush
T = Burner Venturi tube
U = Injector
V = Bush securing screw
Gas
Pressure
Injector diameter
Distance H
G30,G31
28-30 mbar
220 1/100 mm
36 mm
G20
20 mbar
320 1/100 mm
24 mm
Table 3
Fig. 7
WARNINGS! After every adaptation to a new gas, make sure of the following:
-
Using an indelible adhesive, apply the data referring to the new installation on the
technical data-plate or apply a new data-plate to identify the current state of the gas
regulation.
-
Run the appropriate tightness tests on the gas circuit.
