rstoneburner
Member
I have 20 roof-top HVAC units that serve 60 residential condos. Each unit draws 60 amps. Is there a code section that allows me justify a demand load of less than 1200A?
thanks.
thanks.
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- Thread starter rstoneburner
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brian john
Senior Member
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- Leesburg, VA
Single phase units?
280/120 VAC distribution?
280/120 VAC distribution?
rstoneburner
Member
The units are 208V, 3P
I looked quickly and I think not...
"220.53 Appliance Load ? Dwelling Unit(s)
It shall be permissible to apply a demand factor of 75 percent to the nameplate rating load of four or more appliances fastened in place, other than electric ranges, clothes dryers, space-heating equipment, or air-conditioning equipment, that are served by the same feeder or service in a one-family, two-family, or multifamily dwelling."
There are other sections that reference 100% for cooling equipment also.
"220.53 Appliance Load ? Dwelling Unit(s)
It shall be permissible to apply a demand factor of 75 percent to the nameplate rating load of four or more appliances fastened in place, other than electric ranges, clothes dryers, space-heating equipment, or air-conditioning equipment, that are served by the same feeder or service in a one-family, two-family, or multifamily dwelling."
There are other sections that reference 100% for cooling equipment also.
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