The key design factor in a VAV system is the control of. the supplied air. The terminal unit should be sized to. take advantage of as much of its potential capacity as. possible. Without this fundamental consideration, the. customer has not received the best value for their VAV. system design.
The amperage rating on the DC motor is not the amperage the treadmill will be using from your wall outlet. Most treadmills only need 10-12 amps from the wall (or less), so a 15 amp circuit is fine, regardless of the rating on the motor. Just look at the amperage rating on the treadmill to see what your wall outlet needs to supply. #2 see #1. #3 Current is always lost in the form of heat when used to power a device. Be it in the motor, the electronics or even the line supplying the current.
If you measure the amps, you will see that they go up slightly with the extra Volts, but not much because there is no load. Amps. The result of this pressure is current flow  connect cable to your battery, connect it to a motor and the voltage rushes out of your battery.his means that the power consumption of this 300 WATT motor is 290 WATTS which is close to its limit. But the power output is somewhat lower than this figure. Let us take another case: An UNGER running on 7 cells with a 9 x 6 prop fitted draws 20.7 AMPS Therefore 7 VOLTS x 20.7 AMPS = 144.9 WATTS power consumption.