Todd,
Check out the appendix of 2002 ed. A8.3.3.1 and A8.4
It appears that you are not required to go the QR route, but the use of one
response type would be the prudent route to take.

Good Luck

Ed Cyr
Alpha Fire Sprinkler Corp.


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Todd Williams
Sent: Tuesday, December 19, 2006 4:17 PM
To: [email protected]
Subject: RE: both QR & SR sprinklers

Good point, However, in the 2002 version (which is CT code), section 8.3.3
addresses the same issue. The problem is that we have a room with one SR and
one QR sprinkler and the QR has to be replaced. Section 8.3.3.1(3) seems to
indicate that SR sprinklers can be used in addition or modification to
existing LH systems that have existing SR sprinklers, which I interpret as
being the case here. So could a sprinkler that is listed for both SR and QR
be installed in a system with SR sprinklers, or would that violate 8.3.3.2?

Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860.535.2080
www.fpdc.com


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ed Cyr
Sent: Tuesday, December 19, 2006 6:46 PM
To: [email protected]
Subject: RE: both QR & SR sprinklers

Todd,
Check out 5-3.1.5.2, 99 ed.
When existing LH systems are converted   to use quick response or
residential sprinklers, all sprinklers within that compartment shall be
changed.

Hope this helps.

Ed
Alpha Fire Sprinkler Corp.


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Todd Williams
Sent: Tuesday, December 19, 2006 3:14 PM
To: [email protected]
Subject: RE: both QR & SR sprinklers

George,

Actually, according to the Tyco price book, the list price of the
replacement for the existing 1/2" sidewalls is $43.00. I know there are
significant discounts, but I doubt if it would be 97.6% to make your "buck a
head"

The issue is that one sprinkler in the room is scheduled to be replaced. The
GB-LO. The existing sprinkler that is scheduled to remain is an SR. The
proposed replacement sprinkler is listed for both SR and QR. My question was
can an SR sprinkler be in the same room as a sprinkler listed for both SR
and QR, per NFPA.

The building was built in 1993 and I don't believe the QR requirement was in
effect. There are 72 rooms that are impacted by this and another 72 rooms
that are not. The other rooms were designed for and most likely remain with
SR sprinklers.

To make this even more complex, this job has dueling consultants and the
other guy didn't even address this issue.

My final recommendations will probably include replacing both sprinklers in
that room with QR, but who knows if the owner will choose to follow that.
Remember the famous quote "You can lead a horticulture, but you can't make
her think."

Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860.535.2080
www.fpdc.com


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of George Church
Sent: Tuesday, December 19, 2006 5:39 PM
To: [email protected]
Subject: RE: both QR & SR sprinklers

Or for a buck a head, it should be an easy sell to the Owner. If it isn't,
then maybe you don't want this guy as a customer.....

Seriously, if you're putting new heads in a hotel room, why would you
consider anything but QR ?

Even if you have the AHJ buy in, imagine the fun a widow's lawyer will have
with you when there's a fire death. "Oh, so you didn't meet current
standards when you were replacing the sprinkler heads because it was another
$2 per room." If you value your retirement assets, you'll put it in your fee
and not even ask the Owner.

glc


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