stors. The amount of heat dissipated in the machine room is dependant on car speed, hoist motor horsepower, total car travel and duty factor. As any of the these factors increase, the amount of heat to be dissipated increases. In general, if hoist motor horsepower increases above 30HP, and the elevator travel is over 100 feet, special considerations are required when sizing dynamic braking resistors. The question of how to remove this heat energy from the machine room must also be addressed.
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