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I have an existing storage warehouse designed with ESLO-20 14.5K sprinklers @ .20/1,500 sqft per the cut sheet.
The owner is installing a "Kardex Autostore" system to 16'-0" high. The existing system calcs out, my question is has anyone designed a system for these "Autostore" systems and do they require anything above an OH2? My thought is bin box storage above 12' design criteria, what's throwing me off is the design criteria in the cut sheet for the sprinkler. Something tells me the existing heads aren't intended for this type of storage. Anything helps, thanks in advance! Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
7 Comments
Dan Wilder
3/5/2024 07:12:19 am
What year were these manufactured? I thought the ESLO's were all under recall?
Pete H
3/5/2024 08:08:20 am
Yeah, aside from the ESLO sprinklers likely being out of date/recalled, I agree with you that it doesn't seem like they're rated for storage and your storage is clearly exceeding OH2 equivalence at 16'-0" high.
Jesse
3/5/2024 08:32:00 am
Man I haven't seen the ESLO K=14.5 in forever. If I remember, that's an old Central sprinkler and I had thought they were all recalled from back in my loss control days..
Casey Milhorn
3/5/2024 08:58:38 am
yeah, definitely would need more info as others stated. Hazard class, storage configuration, etc.... the good news is that you at least are starting with a 3/4" outlet. You will have some options, especially if the water supply has improved some. Those are fun to dig into and problem solve for.
Dustin
3/5/2024 09:05:18 am
Follow FM 8-34 on this one. Last one we did ended up with an ESFR system. It also had VESDA above to perform recall and shunt or the storage system.
Chad
3/5/2024 09:16:39 am
100% needs ESFR, but follow FM 8-34 to find out all the details.... also ask the ASRS manufacturer. I guarantee someone has done full scale testing on something that tall.
Mark Fessenden
3/10/2024 09:06:17 pm
Another consideration is spacing as the ESLO-20 is an extended coverage sprinkler, the existing system piping will likely be over spaced for any FM 8-34 protection scheme. Only the glass bulb versions were included in Central VRP, the fusible link versions were not. OH wouldn't normally work for anything over 12 high, per Table 4.3.1.7.1.1. Leave a Reply. |
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