Installation Operation Maintenance

OperationUnit start-upVerification of gas valve settings -(Reserved for the qualified gastechnician)WARNING! Improper gas valvesetting may lead to burnerdestruction and people injury.Note: Unit factory-set for G20.Figure 32 - Gas valveG20 - 7.5mbarG25 -10.5mbar1 3/32" • G 20: 20 mbNote: Unit to be installed outsideonly.Note: Expansion valve must beadapted to the type of gas used:• G 25: 25 mb• G 31 (Propane): 37 or 50 mb1 = Screw to set gas valveTable 50 - Gas type designation per countryTable 51 - Gas burner dataBURNER G120 G200 G250Gas Type G20 G25 G31 G20 G25 G31 G20 G25 G31Heating Input (kW) (kW) 26,5 26,9 27,0 44,4 44,8 45,1 55,8 56,2 56,6Heating Output (kW) (kW) 24,6 25 25,1 41,3 41,7 41,9 51,9 52,3 52,6Efficiency 93% 93% 93% 93% 93% 93% 93% 93% 93%Gas Flow rate (Nm3/h forG20 & G25 - kg/h for G31)2,8 3,3 2,1 4,7 5,5 3,5 5,9 6,9 4,4Heating Output per stage(1st/2nd) (%)0%-100% 0%-100% 0%-70%-100% 0%-70%-100% 0%-70%-100% 0%-70%-100%Inlet pressureMin/Nominal/Max(mbar) 17 / 20 / 25 20 / 25 / 30 25 / 37 / 45 17 / 20 / 25 20 / 25 / 30 25 / 37 / 45 17 / 20 / 25 20 / 25 / 30 25 / 37 / 45Low pressure switchsetting(mbar) 15 15 20 15 15 20 15 15 20Manifold pressure (mbar) 7,5 10,5 24,9 7,5 10,5 24,9 7,5 10,5 24,9No of injectors 3 4 5Injector size (Drill / mm) (Drill / mm) (33) / 2.87 (51) / 1.70 (1/8") / 3.175 (49) / 1.85 (1/8") / 3.175 (49) / 1.85SMOKE ANALYSISGas / VoltageGas typeDestination countriesCategoryG20 G25 G31Pressure un mBarFR II2E+3P 20 25 37CH - CZ - ES - GB - GR - IE - PT II2H3P 20 - 37IT II2H3+ 20 - 28-30 / 37NL II2L3P - 25 30BE I2E+ 20 25 -DE - LU - PL I2E 20 - -AT - DK - EE - FI - LT - LV - NO - SE - SI - SK - TR I2H 20 - -HU I2H - 25 -BE - CZ - PL - SI - SK - TR I3P - - 37AT - DE - HU - LU - SK I3P - - 50G20 - 20mbar400/3/50G25 - 25mbar400/3/50G31 - 37mbar400/3/50G20 - 20mbar400/3/50G25 - 25mbar400/3/50Notes:(1) G20 heating output given for 34,02 MJ/m 3 (15°C-1013) (3) G31 heating output given for 46.34 MJ/kg(2) G25 heating output given for 29,30 MJ/m 3 (15°C-1013) (4) 1 percent = 10 000 ppmG31 - 37mbar400/3/50G20 - 20mbar400/3/50G25 - 25mbar400/3/50G31 - 37mbar400/3/50CO (%) 0.0012% 0.0017% 0.0003% 0.0020% 0.0015% 0.0011% 0.0020% 0.0015% 0.0011%Nox (ppm) 59 ppm 44 ppm 8.7 ppm 10 ppm 10 ppm 11 ppm 10 ppm 10 ppm 11 ppmCO2 (%) 8,29% 9,20% 8,90% 7,10% 7,10% 8,28% 7,10% 7,10% 8,28%54RT-SVX20B-E4