Operation With Supply Gas Identical To That Available; Checking The Supply Pressure; Regulating The Primary Air; Regulating The Pilot Flame - OFFCAR STILE 700s Série Instructions D'utilisation Et D'entretien

4. OPERATION WITH SUPPLY GAS IDENTICAL TO THAT AVAILABLE

Check whether the indications on the data plate correspond to the gas distributed. Also check correspondence to the
indications below.
4.1 Checking the supply pressure (Fig. 2)
The supply pressure can be measured by means of a pressure gauge with a
U-shaped pipe, or of the electronic type with a minimum grading of 0.1
mbar.
Unscrew the screw "A" from the pressure tap "B".
-
- Position the pressure gauge.
Switch on the appliance and check that the pressure is the one
-
intended: otherwise check on the cause.
At the end of the operation, reassemble the appliance and check on the
-
connection.
ATTENTION: If the pressure measurement is not within the thresholds stated in table 4, instead of installing the
appliance you should contact your gas provider to report a fault with your mains supply.
Close the gas valve, disconnect the pressure measurement device, do up the screw you had previously undone and
close the front panel.
TABLE 4 – Permissible thresholds for the gas feed pressure
Gas
Gas naturale (metano) G20
Gas liquido (GPL) 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 "E" 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.
Supply pressure [mbar]
nominal
20
28 - 30/37
- 13 -
Fig. 2
min
17
20/25
A
B
max
25
35/45
Fig. 3