Put it in and let the owner "Value Engineer" it out when they're over
budget. Sometimes giving someone the education their job title requires is
just to time consuming and costly. Let them learn on their own dime.
Thom McMahon
Firetech, Inc.
2560 Copper Ridge Dr
Steamboat Springs, CO 80488-2136
Tel: 970-879-7952
Fax: 970-879-7926
----- Original Message -----
From: "Davis, Adam" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, April 12, 2007 6:25 AM
Subject: RE: Duplicate run-in
Ray,
This is a loop around a campus of buildings. The loop is fed from public
water in two places. The duplicate run-in is only being considered for one
of
the four buildings on the campus. The client Rep. that proposed the
duplicated run-in is responsible only for that one structure, and this
building is not the high rise of the bunch either from a loss/risk
perspective.
I agree the concept has a value but in this particular case it is hard to
justify based on the factors involved. As far as redundancy because of the
facility nature it is hard to justify the duplicate run-in because the
client
does not want to incur the additional cost of a tank and pump, but rely
solely on the public water flow/pressure that is available. What I am
leading towards is that the client does not see this site as a highly
protected risk or they would want more than they are currently asking for.
The duplicate run-in does not have any true benefit since the plan shows
them
side-by-side.
Adam Davis
Mechanical Engineer
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ray Schmid
Sent: Thursday, April 12, 2007 7:43 AM
To: [EMAIL PROTECTED]
Subject: RE: Duplicate run-in
If there are separate feeds from two different municipal service zones
that are sufficiently remote and permit concurrent maintainability of
the underground supply, there may be a benefit to this. We have been
working at a large campus that includes two data centers, each with
redundant feeds. Obviously a very high value asset. This is an FM
insured facility, but this may not necessarily have been their
recommendation when the buildings were constructed (circa 1990).
The secondary feed could be from a separate municipal zones, from a
campus tank/pump, or from an elevated tank. The intent is to eliminate
single points of failure the originate outside the facility. I think
you need to know more about what is upstream of the facility before you
can draw a conclusion.
Ray Schmid
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Davis,
Adam
Sent: Wednesday, April 11, 2007 3:58 PM
To: [EMAIL PROTECTED]
Subject: Duplicate run-in
I have a client that wants a duplicate run-in. What I mean is two
parallel
run-ins, each with a PIV going to serve the same sprinkler riser. I
have
never done this before and I know FM (insured) and NFPA do not advocate
this
kind of arrangement. Has this ever been done before and if so why? I
am
trying to respond that I don't think it is a worth while investment to
"ensure" continuous water supply.
Thank you,
Adam Davis
Mechanical Engineer
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