Ron,

I am not crazy, I know exactly what the codes say, and as an Engineer I am
ethically bound to do the right thing - upgrade the system to current codes.
Let's just say some other sprinkler companies in our area would just do the
work without question, and use the statement "oh was I supposed to know
that" duh!  I was asking the question merely because I may have missed
seeing some verbage in the codes? Unfortunately when our region is
economically driven by agriculture, commissioners and city councils often
overrule what the codes say - right or wrong.  I am dealing with one right
now in a separate building, a plastics storage building that requires
sprinklers due to its size, the building owner doesn't want to spend the
money, and in this case the AHJ say's "they have a good history on no fires
on their premises", "let's let them build without fire protection" what
kinda basis is that?  Lets stick a bullet in the cylinder and pull the
trigger, there's a 5 in 6 chance nothing is going to happen, boom!   

Jim Johnston, P.E.
Fire Protection Engineer
Inland Fire Protection, Inc
1100 Ahtanum Road
Yakima, WA 98903
Phone 509-248-4471
Fax 509-248-1180
[email protected]

-----Original Message-----
From: Ron Greenman [mailto:[email protected]] 
Sent: Friday, February 12, 2010 9:31 AM
To: [email protected]
Subject: Re: System Replacement

Jim,

The oldest handy 13 I have is from 1985 and it allows dry gridded
systems by inference in 5-2.3.1 where it limits gridded systems on dry
pipe valves to 500 gallons. That said--Are you crazy? Why even ask the
question? You have an occupancy change that, when it initially
happened, should have driven a hazard upgrade that should have driven
changing the system to a dry tree (pump?) or a wet grid (heat?). But
I'll bet we just moved the stabilized long-strand carbon compound
product into the fruit warehouse without telling anybody, kinda like
the sound insulating foam panels in a famous recent fire. Due
diligence my friend, due diligence. There's a reason dry grids were
allowed in 1985 and not now and I'd bet it's due to more than one
failure. I've been cranky and irritable lately.

On Fri, Feb 12, 2010 at 8:59 AM, Jim Johnston
<[email protected]> wrote:
> Good Friday Morning All:
>
>
>
> Yesterday I visited a facility that has an existing gridded dry system
> installed in 1981 - I assume that was legit back in those days?  The
system
> is protecting fruit stored in bins in a controlled atmosphere building.
 The
> system is rotting out and needs to be replaced, I can't find a specific
> clause in the codes that say's replace it as it currently is - the problem
> being a dry grid.  To further complicate the problem the original
> classification was a Class II (fruit in wood bins), today those bins are
> HDPE - Group A Plastic.  With this information would you agree that you
> can't replace the system as originally installed?
>
>
>
> Jim Johnston, P.E.
>
> Fire Protection Engineer
>
> Inland Fire Protection, Inc
>
> 1100 Ahtanum Road
>
> Yakima, WA 98903
>
> Phone 509-248-4471
>
> Fax 509-248-1180
>
> [email protected]
>
>
>
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>



-- 
Ron Greenman
Instructor
Fire Protection Engineering
Bates Technical College
Tacoma, WA

Member:
SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC
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