Disconnect

[jmc]

Can a disconnect for an air handler be mounted to the duct?

2006 IRC/2005 NEC

Looking for applicable code sections supporting or not supporting the install.

Thanks!

 

[Gregg Harris]

Try NEC 110.13 Electrical equipment shall be firmly secured to the surface on which it is mounted.

110.26 space about electrical equipment

If all requirements are met should not be a problem

 

[Gregg Harris]

E3304.7 for IRC same verbiage.

 

[fatboy]

I agree with Gregg, if it fits, it ships.........

 

[north star]

= + =

jmc,

Agree with the others!.......How will the disconnect be "securely"

mounted to the duct?.......Hopefully, something more than

using screws.......Also, will using the disconnect handle [ "the

throw" ] cause damage to the duct, ...by bending / warping of

the duct?

= + =

 

[Dennis]

I have seen disconnects mounted to the air handler unit.

440.14 Location. Disconnecting means shall be located within sight from and readily accessible from the air conditioning or refrigerating equipment. The disconnecting means shall be permitted to be installed on or within the air-conditioning or refrigerating equipment.The disconnecting means shall not be located on panels that are designed to allow access to the air-conditioning or refrigeration equipment or to obscure the equipment nameplate(s).

Exception No. 1: Where the disconnecting means provided in accordance with 430.102(A) is capable of being locked in the open position, and the refrigerating or air-conditioning equipment is essential to an industrial process in a facility with written safety procedures, and where the conditions of maintenance and supervision ensure that only qualified persons service the equipment, a disconnecting means within sight from the equipment shall not be required. The provision for locking or adding a lock to the disconnecting means shall

be installed on or at the switch or circuit breaker and shall remain in place with or without the lock installed.

Exception No. 2: Where an attachment plug and receptacle serve as the disconnecting means in accordance with 440.13, their location shall be accessible but shall not be required to be readily accessible.

Informational Note No. 1: See Parts VII and IX of Article 430 for additional requirements.

Informational Note No. 2: See 110.26.