cord wired fans

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discostu

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I am wiring a parking garage that have fans installed to remove CO when the alarm is activated. The fan motors are installed in a dog house. The fans came out cord wire from the motor to the disconnect. I did not supply this. I am only connecting to the line side of the disconnect. I asked the mechanical contractor for the paper work on these fans to verify the listing and wiring methods used. I don't think that the cord can be left running from the motor to the disconnect. How can I get the mechanical contractor to fix this. I don't want to have to rewire 50 fan motors.
 
If the fans are UL listed with the cords on them, that is how I would leave them. The manufacturer probably used a flexible cord due to the vibration of the fan.

Steve
 
It sounds like the cord is part of a listed assembly which includes the fan motor and disconnect and as such would be permitted.
 
discostu said:
These are fixed in place equipment and NEC 400.7 and 400.8
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I don't see how 400.8 could even remotely be applied in such a case.

Since the cord is not part of the premises wiring, I don't see how the NEC applies anyway.
 
petersonra said:
I don't see how 400.8 could even remotely be applied in such a case.

Since the cord is not part of the premises wiring, I don't see how the NEC applies anyway.
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The cord is not part of the listing at all only the fan motor. As far as 400.8 If these are installed in the building then it is the permises wiring. It's not an appliance so 400.8 does apply and these must be hard wire
 
407.7

407.7

I think that the cord would be fine. I have done this to prevent vibration and noise transsions. And to allow the removal for repair of the dfan blades motors etc..
 
muskiedog said:
I think that the cord would be fine. I have done this to prevent vibration and noise transsions. And to allow the removal for repair of the dfan blades motors etc..
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My thoughts exactly. This is specifically allowed by 400.7, and that makes any discussion of 400.8 a mute point.
 
pipemaster said:
The cord is not part of the listing at all only the fan motor. As far as 400.8 If these are installed in the building then it is the permises wiring. It's not an appliance so 400.8 does apply and these must be hard wire
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I would disagree. The cord is not required to be part of the motor listing since the motor is part of a listed appliance. If the fan is listed with the cord attached then your use of it with the factory cord is code compliant.
 
infinity said:
I would disagree. The cord is not required to be part of the motor listing since the motor is part of a listed appliance. If the fan is listed with the cord attached then your use of it with the factory cord is code compliant.
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The cord was installed by the mechanical contractor
 
pipemaster said:
The cord was installed by the mechanical contractor
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Did discostu say that? I must have missed it. Even so, it still is possible that the installation with the cord is compliant. Dishwashers are fixed in place and are permitted to be cord and plug connected.
 
infinity said:
Did discostu say that? I must have missed it. Even so, it still is possible that the installation with the cord is compliant. Dishwashers are fixed in place and are permitted to be cord and plug connected.
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I did see that in his post
 
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