larger motor

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I think what the OP is asking and maybe I am reading it wrong is when figuring the load for the AC or Heat the heat is the larger of the two so you use the heat VA in your calculation. Since the AC is not used (but the motor that is part of the blower is the largest or only motor) do you still include the 25% of the largest motor to the load calculation, even though the AC load is not part of the calculation.

I have never seen any exception stating that if the largest motor is part of the AC you do not have to figure the additional 25% for the largest motor.
 
wireguy8169 said:
I think what the OP is asking and maybe I am reading it wrong is when figuring the load for the AC or Heat the heat is the larger of the two so you use the heat VA in your calculation. Since the AC is not used (but the motor that is part of the blower is the largest or only motor) do you still include the 25% of the largest motor to the load calculation, even though the AC load is not part of the calculation.

I have never seen any exception stating that if the largest motor is part of the AC you do not have to figure the additional 25% for the largest motor.
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Much obliged.
For me ac is alternating current.
Ignorant Brit strikes again.....;)
 
Basically it works this way: from Section 220.14(C), you calculate the branch circuit loads according to 430.22, 430.24, and 440.6 as appropriate. The common feeder, if any, is calculated per Section 220.40. It automatically ?adjusts? for you.

NOTE: there are precious few ??applicable demand factors permitted by Part III or IV or required by Part V?? to apply.
 
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