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HomeMy WebLinkAboutE17-0129_E17-0129 load calcs_1505415000.pdf IBI Residential Load Calculation Worksheet Elect. Permit No. Worksheet # 1 E17-0129 (Revised 01/09/08) Conditions: Single family dwelling, heating load is larger than air-conditioning load. (Heat Pump and/or Electric Space Heating) (Based on NEC 220.82) Existing plus Added Loads (less HVAC) 1008 sq. ft. @ 3 watts sq. ft 3024 watts 2 Small Appliance Circuits @ 1500 watts ea. (Minimum 2) 3000 watts Laundry Circuit(s) @ 1500 watts ea. (Minimum is 1) 0 watts Range (Nameplate Rating) 0 watts Cooktop (Nameplate Rating) 0 watts 5000 Oven(Nameplate Rating) 5000 watts 3000 Electric Water Heater 3000 watts Electric Clothes Dryer(Enter larger: 5000 Watts or Nameplate Rating) 0 watts 1 Dishwasher 1 watts 1 Disposal 1 watts Sump Pump 0 watts Sewage Pump 0 watts Water Pump 0 watts 1 Microwave Oven 1 watts Garage Door Opener 0 watts 0 watts 0 watts 0 watts 0 watts Total Calculated Load (less HVAC) 14027 watts Service Demand General Load: First 10kw of Total Calculated Load (less HVAC) @ 100% 10000 watts Remainder of Total Calculated Load (less HVAC) @ 40% 1611 watts Total General Load 11611 watts I HVAC Load: Nameplate Heat Pump Compressor load @ 100% (Volts X Amps =Watts) 0 watts 6048 Nameplate Electric Space Heating Load @ 65% 3931 watts (Nameplate Rating in watts X .65) ((NEC 220.82 (C)(4)(5)) 3931 watts ) Total General Load + Total HVAC Load = Calculated Service Load 11611 watts + 3931 watts = 15542 watts Calcuated Service Load ÷ Service Voltage = i Minimum Service Ampacity 15542 watts = 240 volts = 64.76 amps SCS te-cf �S ��� (. € Svti\ r 1/Ae