3 "gas data") – A.O. Smith ADM - 80 User Manual
Page 20
Installation
20
Instruction manual ADM
3
is
3.4.3
Gas data
Gas data
Description II
2H3+
Unit
ADM
40
ADM
50
ADM
60
ADM
80
ADM
90
ADM
115
ADM
135
Gas category 2H: General
Orifice diameter
mm
3.20
3.20
3.10
2.95
3.20
3.20
3.90
(1) = Blank plate
(2) = Burner pressure regulator
(3) = High/low regulator
1, 2 or 3
2
2
2
2
2
2
2
Gas category G20 - 20 mbar
Nominal load (gross calorific value) kW
42.2
56.5
66.4
82.5
98.3
126.6
143.4
Nominal output
kW
32.3
42.8
50.2
62.4
74.3
95.8
109.8
Supply pressure
mbar
20
20
20
20
20
20
20
Burner pressure
mbar
8.5
8.5
8.5
8.5
8.5
8.5
11.3
Gas consumption
(*)
m
3
/h
4.0
5.4
6.3
7.9
9.4
12.1
13.7
Gas category 3+: General
Orifice diameter
mm
1.70
1.70
1.70
1.50
1.70
1.70
2.25
(1) = Blank plate
(2) = Burner pressure regulator
(3) = High-low control
1, 2 or 3
1
1
1
1
1
1
3
Gas category G30 - 30 mbar
Nominal load (gross calorific value) kW
41.6
55.3
68.2
80.7
96.1
123.5
138.4
Nominal output
kW
32.6
42.8
52.8
62.6
74.5
95.8
108.5
Supply pressure
mbar
30
30
30
30
30
30
30
Burner pressure
(†)
mbar
-
-
-
-
-
-
-
Gas consumption
(*)
kg/h
3.0
4.0
5.0
5.9
7.0
9.0
10.1
Gas category G31 - 37 mbar
Nominal load (gross calorific value) kW
38.4
51.1
63.3
77.7
89.6
113.0
130.1
Nominal output
kW
30.0
39.5
48.9
60.1
69.2
87.4
101.7
Supply pressure
mbar
37
37
37
37
37
37
37
Burner pressure
(†)
mbar
-
-
-
-
-
-
-
Gas consumption
(*)
kg/h
2.7
3.7
4.5
5.6
6.4
8.1
9.3
(*) Based on 1013.25 mbar and 15 °C.
(†) If using a blank plate instead of a burner pressure regulator, it is assumed that the burner pressure is equal to
the supply pressure. In practice, however, the burner pressure will be lower.