It was treated water in the sprinkler loop, not the cooling tower
water. The pipes I saw looked quite good for 22 years of service.
Most of the heads were on drops or arm overs so there was
considerable distance from the flowing water to the sprinkler. I
doubt that there was much temperature effect on the heads.
Michael
At 01:23 PM 5/2/2007, you wrote:
But cooling tower water should not have been inside this part of the
system. There's usually two separate water loops. The CT water should
only have been going through a water cooled condensing unit, then the
chilled water or hot water loop would be a closed circulating loop going
through the condenser and boiler. So any MIC or other nasty stuff from
the tower should not have been able to get into the sprinkler/hvac
supply loop.
I wonder what effect circulating 40-50deg chilled water through the
sprinkler lines would on the reaction time of the sprinklers versus them
being at ambient temperature. Anyone know?
Craig L. Prahl, CET
Fire Protection Group
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
PO Box 491, Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[EMAIL PROTECTED]
http://www.lg.com
Michael M. Fitz, P.E., C.F.I.
MDE Inc.
700 South Industrial Way
Seattle, WA 98108
Main 206-622-2007
Direct 206-957-2140
Fax 206-622-2248
Home Office 360-427-2751
Cell 206-321-1804
www.mde.com
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