Sometimes, we provide unit with vestibule and with control panel inside the vestibule.
The Nec article 440.14 says that the disconnect means shall be located in sight. But it says it can be installed ON or WITHIN the unit.
The question is : Are we obligated to have a disconnect remote from the control box when the control box is inside a vestibule?
Is there an impact if the client can open a door that gives direct access to the motors (without using the vestibule)?
Up to now we provide a disconnect on the unit and one Inside the control box, but I would like to reduce the unit cost by removing the disconnect on the unit.
Thanks for your help
The Nec article 440.14 says that the disconnect means shall be located in sight. But it says it can be installed ON or WITHIN the unit.
The question is : Are we obligated to have a disconnect remote from the control box when the control box is inside a vestibule?
Is there an impact if the client can open a door that gives direct access to the motors (without using the vestibule)?
Up to now we provide a disconnect on the unit and one Inside the control box, but I would like to reduce the unit cost by removing the disconnect on the unit.
Thanks for your help