Astoria 2GR - Page 31

TECHNICIANS' manual
33 of 108
5.8.3 Gas table
Instructions for installing the appropriate injector and adjust-
ing the air extraction guard.
Gas
type
Supply
pressure
Injector inlet
minimum pressure
Burner
injector hole
Air intake extraction
guard
Minimum power
Q min
Maximum power
Q n
Maximum
consumption
MODEL
mbar mbar 1/100 mm mm kW kW m
3
/h kg/h
1 Group
G20
20 1.7 100 1 0.47 1.67 0.177 -
G25
20 1.7 110 1 0.47 1.67 0.177 -
G25.3
20/25 2.4 100 1 0.47 1.55 0.164 -
G30/31
28-30/37 3.5 60 3 0.47 1.40 - 0.110
G30/31
50 3.5 60 3 0.47 1.80 - 0.142
2 Groups
G20
20 1.9 110 1 0.69 2.03 0.215 -
G25
20 2.1 135 1 0.69 2.52 0.267 -
G25.3
20/25 2.7 110 1 0.69 1.88 0.199
G30/31
28-30/37 5.5 75 3 0.69 2.20 - 0.174
G30/31
50 6.1 65 3 0.69 2.10 - 0.167
3 Groups
G20
20 2.3 135 1 1.16 3.06 0.323 -
G25
20 2.3 145 1 1.16 2.91 0.308 -
G25.3
20/25 3.5 135 1 1.16 2.85 0.302 -
G30/31
28-30/37 6.1 80 3 1.16 2.51 - 0.199
G30/31
50 11.3 75 3 1.16 2.84 - 0.225
4 Groups
G20
20 2.5 145 1 1.30 3.55 0.376 -
G25
20 2.5 160 1 1.30 3.55 0.376 -
G25.3
20/25 3.8 145 1 1.30 3.30 0.349 -
G30/31
28-30/37 6.8 85 3 1.30 2.85 - 0.225
G30/31
50 11.3 75 3 1.30 2.85 - 0.225
INTERNATIONAL SYSTEM-CONVERTED
(SI) UNITS OF MEASUREMENT
1 mbar
1 mm
1 kW
1 m
3
/h
1 kg/h
=
=
=
=
=
100
0.001
1000
2.78x 10
-4
2.78x 10
-4
PA
m
W
m
3
/s
kg/s