When a load calculation is done for a residential property it is known as a Manual J. When it is done for a commercial property - like a coffee shop or office, it is known as a Manual N and accounts for things like how many occupants by hour and by day, What machines, stoves, refrigerators, freezers, cooking appliances, motors, computers, printers and how much lighting is in the building.
It will include a duct design for the equipment and ventilation to match the required load. This will be presented in the expected schedule format.
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