A.O. Smith Innovo 12-160, Installation, Service & Maintenance Manual

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13.3 Gas details
Description Unit IR-12-160
IR-12-200 IR-20-160
IR-20-200 IR-24-245
IR-24-285 IR-32-245
IR-32-285
IR-32-380
Gas category 2H (G20)
Diameter of the venturi
restrictor mm 3.95 3.95 3.95 3.95
Nominal Load (gross) kW 12.1 20.0 24.4 32.2
Nominal output kW 11.7
(12-160)
11.9
(12-200)
19.1 23.5
(24-245)
23.8
(24-285)
30.7
(32-245)
31.0
(32-285)
31.3
(32-380)
Supply pressure mbar 20.0 20.0 20.0 20.0
CO
2
(full load) vol% 9.3 ± 1.0 9.3 ± 1.0 9.3 ± 1.0 9.3 ± 1.0
O
2
(full load) vol% 4.3 ± 1.8 4.3 ± 1.8 4.3 ± 1.8 4.3 ± 1.8
Gas consumption
(1)
m
3
/h
1.2 1.9 2.3 3.1
NO
x
-emission mg/kWh GCV 22 30 33 37
Mass flow rate flue gases
(minimal load) kg/h 9.1 9.1 9.1 9.1
Mass flow rate flue gases
(nominal load) kg/h 19.0 31.4 38.4 50.7
Flue gas temperature
(nominal load) ºC 42 61 57 65
Gas category 3P (G31)
Diameter of the venturi
restrictor mm 3.05 3.05 3.05 3.05
Nominal Load (gross) kW 11.8 19.6 23.9 31.5
Nominal output kW 11.4
(12-160)
11.6
(12-200)
18.7 23.0
(24-245)
23.3
(24-285)
30.1
(32-245)
30.4
(32-285)
30.7
(32-380)
Supply pressure mbar 37.0…50.0 37.0…50.0 37.0…50.0 37.0…50.0
CO
2
(full load) vol% 10.0 ± 1.0 10.0 ± 1.0 10.0 ± 1.0 10.0 ± 1.0
O
2
(full load) vol% 5.7 ± 1.5 5.7 ± 1.5 5.7 ± 1.5 5.7 ± 1.5
Gas consumption kg/h 0.8 1.4 1.7 2.3
NO
x
-emission mg/kWh GCV 23 30 33 37
Mass flow rate flue gases
(minimal load) kg/h 8.8 8.8 8.8 8.8
Mass flow rate flue gases
(nominal load) kg/h 20.0 33.1 40.5 53.3
Flue gas temperature
(nominal load) ºC 39 56 55 59
1 - Based on 1013.25 mbar and 15°C.
84 Installation, Maintenance and Service part