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HomeMy WebLinkAboutload calcs_25.pdfIBI Residential Load Calculation Worksheet Worksheet # 1 (Revised 01/09/08) Conditions: Single family dwelling, heating load is larger than air-conditioning load. (Heat Pump and/or Electric Space Heating) 1366 2 1 5000 4000 5000 1500 1500 2000 (Based on NEC 220.82) E .. x1stmg pus Add d L d (I HVAC) e oa s ess sq. ft. {a), 3 watts sq. ft Small Appliance Circuits {a), 1500 watts ea. (Minimum 2) Laundry Circuit( s) {a), 1500 watts ea. (Minimum is 1) Range (Nameplate Rating) Cooktop (Nameplate Rating) Oven (Nameplate Rating) Electric Water Heater Electric Clothes Dryer (Enter larger: 5000 Watts or Nameplate Ratin2 Dishwasher Disposal Sump Pump Sewage Pump Water Pump Microwave Oven Garage Door Opener , _('\"' -· c,v- ..:.Z\ _....()'(' '"' ,, _\ 'l~,<) ~?~ ,.// --.\\\.~~: ..... ~v/ ,.. ~ /, "\ ': ~·:~-\" ~ Q '--'' -Y~.~"1 1 3 ~ ;..o'-""' / Y/f_& // -v -~e·; /rl Y v_ .. , / / -"t~ Total Calculat ad (less HV AC) Service Demand General Load: First lOkw of Total Calculated Load (less HV AC) 100% Remainder of Total Calculated Load (less HV AC) @40% I Elect. Permit No. I E/V· 0/•1 4098 watts 3000 watts 1500 watts 5000 watts 0 watts 0 watts 4000 watts 5000 watts 1500 watts 1500 watts 0 watts / 0 watts / ./0 watts /2006' watts / 0 watts / 0 watts 0 watts 0 watts 0 watts 27598 watts 10000 watts 7039 watts Total General Load 17039 watts HVACLoad: Nameplate Heat Pump Compressor load@ 100% (Volts X Amps = Watts) 8000 Nameplate Electric Space Heating Load @65% (Nameplate Rating in watts X .65) ((NEC 220.82 (C)(4)(5)) Total General Load + Total HV AC Load = 17039 watts + 5200 watts = Calcuated Service Load Service Voltage = 22239 watts 240 volts = O watts 5200 watts 5200 watts Calculated Service Load 22239 watts Minimum Service Am 92.66