Laars MAGNATHERM MGH2000 Installation And Operation Instructions For

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LAARS Heating SystemsPage 18Section 5Water floW reqUIrementS5.1 magnatherm Boiler flow and Head requirements5.2 magnatherm Water Heater flow and Head requirementsSizing DataWater Pipe Gas Pipecm Inches cm (NPT) (NPT) MBH kW97 57.0 145 2.5 1.5 2000 1999 586105 60.5 154 3 2 3000 3000 879132 70.0 178 4 2.5 4000 4000 1172ead loss flow Head loss flow Head loss flow Head lossfeet lPm m lPm m lPm m13.6 2000 485 7.2 413 5.2 360 4.218.9 3000 719 10.4 621 7.9 538 5.822.5 4000 965 11.6 825 8.7 719 6.9MagnaTherm Electrical Options2000 3000 4000 2000 3000 400022.6 N/A N/A 15.1 N/A N/A11.3 N/A N/A 8.8 N/A N/A12.7 19.4 19.4 7 12.5 136.2 8.7 8.7 3.2 5 4.84.5 5.9 5.9 2.8 4 4.4Current (Nominal)SizeSize Input RateDtemperature rise in °C600V Three PhaseCurrent (FLA)120V Single Phase240V Single Phase208V Three Phase480V Three PhaseVoltage17°C 19°C 22°CfHeadloss is for boiler only (no piping)* * *2000 29.3 75 77 196 38.0 97 57.0 145 2.53000 30.8 78 87 221 41.5 105 60.5 154 34000 34.5 88 97 246 52.0 132 70.0 178 4Boiler Water Flow Requirementsflow Head loss flow Head loss flow Head loss flow HeaGPm feet GPm feet GPm feet lPm2000 128 23.5 109 17.1 95 13.6 2000 4853000 190 34.2 164 25.8 142 18.9 3000 7194000 255 38.2 218 28.5 190 22.5 4000 965Volume Water Heater Flow Requirements MagnaTherm Electrical OpTemp Rise Flow Head Loss Grains°F (°C) GPM (LPM) Feet (m) per Gallon2000 20 (12) 177 (670) 43.9 (13.4) 103000 25 (14) 220 (833) 46 (14) 104000 30 (17) 266 (1006) 41.2 (12.6) 10SizeSize Sizetemperature rise in °f600V Three Phase120V Single Phase240V Single Phase208V Three Phase480V Three PhaseVoltage17°C30°f 35°f 40°f*****Water Flow Requirements (for water heater submittal)Model Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss Flow Rate Temp Rise HeadlossGPM °F Ft LPM °C m GPM °F Ft2000 152 25 33.0 575 14 10.1 177 21 43.93000 190 30 36.0 719 17 11.0 220 26 46.04000 224 34 30.0 848 19 9.1 266 29 41.2Allowable pH: 6.5 to 9.5Headloss is for the heater only (no piping)Water Hardness1-10 grains per gallonWater H11-15 grainsRate Temp Rise Headloss Flow Rate Temp Rise Headloss Flow Rate Temp Rise HeadlossM °C m GPM °F Ft LPM °C m75 14 10.1 177 21 43.9 670 12 13.419 17 11.0 220 26 46.0 833 14 1448 19 9.1 266 29 41.2 1007 16 12.6ssllonWater Hardness11-15 grains per gallonWater Flow Requirements (for water heater submittal)Model Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss Flow Rate Temp Rise HeadlossGPM °F Ft LPM °C m GPM °F Ft2000 152 25 33.0 575 14 10.1 177 21 43.93000 190 30 36.0 719 17 11.0 220 26 46.04000 224 34 30.0 848 19 9.1 266 29 41.2Allowable pH: 6.5 to 9.5Headloss is for the heater only (no piping)Water Hardness1-10 grains per gallonWater H11-15 grains****table 10. Boiler flow and Head requirementstable 11. Water Heater flow and Head requirements