Alke AL-4 Series, User, Service And Installation Manual

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Version 2: March 2020 19 manual: 0009 0231EN
Technical table
Gas group Gas Max
Supply
pressure
Min
Supply
pressure **
Max
Heat Input
Min
Heat Input
Gas
consumption
Main
Injector
Main
Injector
S-model
By-pass
hole **
S-model
Venturi Injector
Holder
NOx
Class
Remarks
(-) (-)* (mbar) (mbar) (kW Hs) (kW Hs) (g/h or m3/h) (mm) (mm) (mm) (mm) (-) (-) (-)
AL-4 series
2E, 2E+, 2H G20 20 12 3,50 2,70 0,34 m3/h 1,35 1,35 1,47 18 37mm 5 0063CT3446
2E, 2H G20 200 100 3,50 2,50 0,34 m3/h 0,76 0,76 0,76 8,5 37mm 5 0063CT3446
2LL G25 20 12 3,50 2,70 0,39 m3/h 1,49 1,49 1,85 18 37mm 5 0063CT3446
2K, 2L G25.3 25 15 3,50 2,70 0,38 m3/h 1,40 1,40 1,60 13 37mm 5 0063CT3446
2K, 2L G25.3 200 100 3,50 2,50 0,39 m3/h 0,82 0,82 0,82 8,5 37mm 5 0063CT3446
3P G31 50 25 3,30 2,30 236 g/h 0,84 0,84 0,84 18 37mm 5 0063CT3446
3P G31 150 75 3,20 2,30 230 g/h 0,64 0,64 0,64 11 37mm 5 0063CT3446
AL-6 series
2E, 2E+, 2H G20 20 12 4,50 3,50 0,43 m3/h 1,53 1,53 1,90 18 37mm 5 0063CT3446
2E, 2H G20 200 100 5,40 3,80 0,52 m3/h 0,92 0,92 0,92 10,5 37mm 5 0063CT3446
2LL G25 20 12 4,50 3,50 0,50 m3/h 1,70 1,70 2,10 18 37mm 5 0063CT3446
2K, 2L G25.3 25 15 4,70 3,60 0,51 m3/h 1,60 1,60 2,00 15 37mm 5 0063CT3446
2K, 2L G25.3 200 100 5,40 3,80 0,59 m3/h 1,00 1,00 1,00 10,5 37mm 5 0063CT3446
3P G31 50 25 4,50 3,20 322 g/h 0,97 0,97 0,97 18 37mm 5 0063CT3446
3P G31 150 75 4,75 3,30 340 g/h 0,76 0,76 0,76 12 37mm 5 0063CT3446
AL-7 series
2E, 2E+, 2H G20 20 x 5,90 x 0,57 m3/h 1,70 x x 23 33-17mm 5 0063CT3446
2E, 2H G20 200 100 6,20 4,40 0,59 m3/h 0,95 0,97 0,98 12 33-12mm 5 0063CT3446
2LL G25 20 x 5,90 x 0,66 m3/h 1,87 x x 19 33-17mm 5 0063CT3446
2K, 2L G25.3 25 15 5,60 4,35 0,61 m3/h 1,70 1,72 2,10 18 33-17mm 5 0063CT3446
2K, 2L G25.3 200 100 5,80 4,10 0,63 m3/h 1,03 1,05 1,10 11 33-12mm 5 0063CT3446
3P G31 50 25 5,50 3,90 394 g/h 1,05 1,07 1,10 20 33-17mm 5 0063CT3446
3P G31 150 75 5,70 4,05 408 g/h 0,82 0,82 0,82 15 33-12mm 5 0063CT3446
* G31 = propane, G20 = natural gas (100% methane), G25 = natural gas (86% methane); G25.3 = natural gas (88% methane)
** In case the heater is equipped with a bypass hole (S version) the heater shall be operated on maximum supply pressure only. See also the pressure
information on the data plate.
Conversion calculation from gross heat input kW(Hs) to nett heat input kW(Hi):
Propane: divide gross heat input kW(Hs) by factor 1,09 (example: 1,20 kW(Hs) / 1,09 = 1,10 kW(Hi)
Natural gas: divide gross heat input kW(Hs) by factor 1,11 (example: 1,20 kW(Hs) / 1,11 = 1,08 kW(Hi)