57
GAS MAINTENANCE
Gas connection with rigid or flexible pipe
Note:
if already fitted on the inlet pipe, remove the rubber hose holder
Manifold
male
pipe fitting
Inlet pipe
1/2” G cylindrical
(ISO 228-1) male
1/2” G cylindrical
(ISO 228-1) female
1/2” G cylindrical
(ISO 228-1) female
Sealing
washer (#)
Flexible pipe
(not supplied)
Rigid pipe
(not supplied)
Fig. 9.3
(#) If not already fitted on the inlet pipe,
it is supplied with the appliance in a
separate kit
TABLE FOR THE CHOICE OF THE INJECTORS
Cat:
II
2H3+
Burners
Nominal
Power
kW
Reduced
Power
kW
G30 - 28-30 mbar
G31 - 37 mbar
G20 - 20 mbar
Ø Injector
1/100 mm
Ø Injector
1/100 mm
Semi-Rapid (SR)
1,75
0,45
65
97 (Z)
Triple Ring (TR)
3,50
1,50
95
135 (T)
Dual (D)
inner crown
1,00 (*)
0,32 (*)
50
(no. 1 central)
69 (F1)
(no. 1 central)
outer crown
4,20 (#)
1,90 (#)
62
(no. 2 outer)
95 (Z)
(no. 2 outer)
INCREASE OF AIR NECESSARY FOR GAS COMBUSTION
(2 m
3
/h x kW)
Burners
Air necessary for combustion (m
3
/h)
Semi-Rapid (SR)
3,50
Triple Ring (TR)
7,00
Dual (D)
8,40
(*): Power calculated with inner crown operating.
(#): Power calculated with inner and outer crowns operating.