For example, the plan reviewer is stating that if the sprinkler is >6"
from a furnace or water heater, it MUST be ordinary temp rated.
I understand the standard to state that you can use intermediate or
ordinary throughout. Table 8.3.2.5(c) just states that if I am within
certain distances to a heat source, I MUST use the intermediate temp
sprinkler.
The plan reviewer is reading that if I am more than the minimum distance
away, I MUST use ordinary. He is stating that Table 8.3.2.5(c)
over-rides 8.3.2.1.
So, who is correct? That is the question that I need to be able to
resolve with the plan reviewer.
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:[email protected]
http://www.mfpdesign.com
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On 11/12/2015 10:29 AM, Ed Kramer wrote:
Table 8.3.2.5(c) gives the minimum distance from various heat sources for
both ordinary and intermediate temp sprinks. I don't see anything in that
table that dictates which sprink temp must be used. Are we missing
something?
Ed Kramer
Lawrence, KS
-----Original Message-----
From: Sprinklerforum [mailto:[email protected]]
On Behalf Of Travis Mack, SET
Sent: Thursday, November 12, 2015 9:53 AM
To: [email protected]
Subject: Intermediate temperature sprinklers
We are designing an apartment complex per NFPA 13 requirements. Is it
permissible to install intermediate temperature sprinklers throughout all
spaces (except those that would specifically require a high temp sprinkler
due to other sections)?
The specific question arises because we have ordinary temperature sprinklers
throughout most areas, and intermediate temp sprinklers in mechanical
closets and laundry rooms in the dwelling units. The AHJ states that since
the areas (mech closets and laundry areas in the dwelling units) are
conditioned spaces, that we must use ordinary temperature rated sprinklers.
He states that Table 8.3.2.5(c) over-rides the flexibility provided by
8.3.2.1 which allows ordinary or intermediate temp sprinklers throughout
buildings.
This has been common practice to install the intermediate temp sprinklers in
these areas. This is the first time that this plan reviewer has ever
brought this up. Some contractors in this area are moving toward
intermediate temp sprinklers throughout in residential areas for various
reasons.
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