I just recently dealt with a similar situation.  We took over an account that 
contained a preaction system in a computer server room that had not to the 
customers knowledge ever been tripped (thus the reason they left 
the competitor).  The customer had no idea of what a preaction system was or 
how it functioned.  After explaining it to them they asked that we not do a 
trip test for the same reason your customer is.  All we did was make a note on 
the tag that all switches were tested but valve was not tripped.  We noted it 
on the report and made sure the customers request was written down in the 
report also.  After the request was recorded i had the customer sign by the 
request verifying that they made the call.  Then we shut the system down and 
did the internal inspection.  I believe that this was the most logical solution 
that would minimize the liability to the company in which i work for.  After 
this was all done I asked our attorney and
 he concurred that even though code says one thing, we have to look at the 
customer needs and liability.  The customer was very happy with the way this 
situation worked.  

Hope this helps a little.
 
Jeremy S. Blocker
 
Let us not look back in anger, nor forward in fear, but around in
awareness. --James Thurber 




________________________________
From: Jay Stough <[email protected]>
To: [email protected]
Sent: Friday, February 13, 2009 8:31:40 AM
Subject: Re: Preaction inspections

I thought the quarterly is inspection to verify physical damage 5.2.6 (2008) 
and semiannually is for testing waterflow and pressure switches, the same as 
72.  

Jay Stough




________________________________
From: Tom Duross <[email protected]>
To: [email protected]
Sent: Friday, February 13, 2009 10:39:19 AM
Subject: RE: Preaction inspections

For those of you testing other than wet systems, how are you handling
quarterly and yearly testing of waterflow switches if you follow the 3 year
cycle on full trips?  We do limited trips on a quarterly basis and full
trips once a year.

Tom

For those of you doing inspections, how do you handle preaction systems?
13.4.3.2.3 says that they should be trip tested fully open every three years
similar to dry systems.  We don't inspect a lot of preaction systems, but
all of the owners have not let us do a full trip, they are afraid of water
leaking out of the system on to their equipment.

Jay Stough

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