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  #1  
Old 12/17/09, 3:10 PM
Mark E. Northrup's Avatar
Mark E. Northrup Mark E. Northrup is offline
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Default Emergency shut off for furnace.

1.Need to know if a shut off switch is required for a furnace age 2001?
2. how close to the unit it is required to be?
3. what year did this start to be recommended or required?
there is not one on the door assy. or outside of the unit.
4. And are main supply HVAC ducts still insulated on the inside of a metal duct where it meets the furnace.
thanks everyone you are always a great source of information.

Mark





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Old 12/17/09, 3:32 PM
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Mark E. Northrup Mark E. Northrup is offline
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Default Re: Emergency shut off for furnace.

Quote:
Originally Posted by ccurrins View Post
thanks mr. currins
I am looking for the code or refferance why it has to be that way.
mark





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Old 12/17/09, 4:25 PM
Matt Berman, CMI Matt Berman, CMI is offline
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Wink Re: Emergency shut off for furnace.

In michigan it is required to be on or adjacent to the equipment. Started in 2006 code. Yours may be different in your area.Call a code official.
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Old 12/17/09, 4:29 PM
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Bob Elliott Bob Elliott is online now
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Default Re: Emergency shut off for furnace.

Quote:
Originally Posted by mberman View Post
In michigan it is required to be on or adjacent to the equipment. Started in 2006 code. Yours may be different in your area.Call a code official.
That's pretty much how it is I would think most everywhere.

I am confused by the insulation (inside ) the duct question.
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Old 12/17/09, 4:54 PM
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Mark E. Northrup Mark E. Northrup is offline
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Default Re: Emergency shut off for furnace.

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Originally Posted by belliott View Post
That's pretty much how it is I would think most everywhere.

I am confused by the insulation (inside ) the duct question.
Bob
On the main furnace supply duct (plenum) there is no insulation on the outside of the duct. I have been told and have seen that sometimes hardboard insulation similar to celotex board is put on the inside to insulate the duct. Is this ok for a 2001 installation. I have seen it on older but not on newer units.





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  #7  
Old 12/17/09, 10:22 PM
Christopher Currins, CMI Christopher Currins, CMI is offline
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Default Re: Emergency shut off for furnace.

Quote:
Originally Posted by mnorthrup View Post
thanks mr. currins
I am looking for the code or refferance why it has to be that way.
mark
Note 422.31(B)

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  #8  
Old 12/17/09, 10:33 PM
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Wayne B. Wilson, TN 439 Wayne B. Wilson, TN 439 is online now
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Default Re: Emergency shut off for furnace.

The reason for the switch being away from the unit is for emergency shut down, In some area's the switch must be marked and even a red color .
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