7
•
After this measure, move the manometer, re-screw the screw-cap, and verify that there are not leaks.
Nominal heat input of appliance can be measured using the gas meter instrument of the premise and a
chronometer; you have to measure the exact gas flow per unit of time, which is consumed when the
water grill (being the only gas heating appliance on) is working at maximum power. This measurement
should be compared to the gas consumption data in technical table A. The tolerance of
±
5 % is allowed
for this measure. If you are measuring top deviations, you should carefully check the diameters and the
quality of the installed nozzles and verify the pressure of the gas network.
3.6
Adaptation to a different gas
If current gas setting of the water grill, which can be verified on labels (either in packaging or in the label
fixed on the back of it), does not correspond to gas available in place the gas adaptation must be carried
out.
The appliance should only be adapted by a professionally qualified technician. With reference to
technical data of table 3, replace the main nozzles, the pilot nozzles, adjust correctly the primary air of
bush and then adjust the by-pass screws on gas tapes to set the right rate at the reduced heat input.
Spare nozzles are provided with the appliance on its delivery or can be ordered near the seller.
Make sure that the diameter is printed on each nozzle in
1/100
ths of a millimetre. Only adapt the
appliance after you have turned the gas off with the on/off valve upstream and let the appliance cool
down.
3.6.1 Replacing the main nozzle and adjusting its primary air
For each main burner, consult technical data on table 3, see Fig. 4 and proceed as follows:
•
Access to the main burner after removing the cooking grids, the radiant elements, the drawers and ,
in case, overturn the appliance to work easily.
•
Unscrew and change the main nozzle “ I “ with the one for the new gas type.
•
Adjust correctly the distance H of primary air bush “ B “ according to the new gas setting.
•
Fix the air bush by the screw “ V “
•
Then replace all the components of the water grill in the reverse order.
B = Primary air bush
H = Primary air distance
I
= Main nozzle
R = Main burner
V = Fixing screw
Z = Gas copper pipe Ø 10 mm
I
B
R
V
Z
Fig. 4_Main nozzle change
