Furnace / Boiler Shutoff Location

[Jon mackay]

What is the standard for the location of of the service power switch on a boiler and furnace?
I am seeing them at doorways to the basement and more often, on the unit themselves.

What should be called out?

[Dave Wheeler]

both are needed. At the top of the stairs for an emergency shutdown and by the unit for the tech

[Jon mackay]

I see, Is there a date that this rule came into play?
Does anyone have documentation on this?

I always like to be able to back up my findings.

Thank you for the info.

[Wayne Carlisle]

I'm not aware of a disconnect required at the top of the stairs but one is required at the unit itself or within site.


TABLE E4001.5
DISCONNECTING MEANS

Air-conditioning condensing units and heat pump units.

A readily accessible disconnect within sight from unit as the only allowable
means. *a


a. The disconnecting means shall be permitted to be installed on or within the unit. It shall not be located on panels designed to allow access to the unit.

[Jim Robinson]

What is this 'basement' that you guys are speaking of. Just at the unit itself around here, unless you count the breaker panel as a shut off. Generally just a plug that can be removed from the receptacle outlet.

[Jon mackay]

Thank you Wayne, what is that from? NRC?

Jim, A basement is one or more floors of a building that are either completely or partially below the ground floor.

[Wayne Carlisle]

You're welcome!
It's actually from the 2006 IRC but the NEC has the same wording or real close to it!