I don't have the data sheets in front of me, but don't you need 2535 sq ft? 
1500 +30%+30% unless you are doing the fixed number of heads. 

Travis Mack, SET
MFP Design, LLC

Sent from my iPhone

On Mar 20, 2013, at 7:38 PM, Greg McGahan <[email protected]> wrote:

> I am not following you on the Hip - AP PLUS BB's to get to 1,950 sqft?  I
> get the other one.....
> 
> On Wed, Mar 20, 2013 at 9:29 PM, Bob <[email protected]> wrote:
> 
>> Greg,
>> If I understand, you will have two calcs.  One at the hip that includes AP
>> &
>> BB sprinklers up to your 1950 sf, than you will have a calc following
>> Figure
>> 20-B-2.  This is similar to what Figure 22 shows which references 20-C-3.
>> The only difference with your scenario is where the two AP sprinklers are
>> picked up, but this should still fulfill the intent.
>> 
>> 
>> Bob Knight, CET III
>> 208-318-3057
>> www.firebyknight.com
>> 
>> 
>> 
>> -----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On Behalf Of Greg
>> McGahan
>> Sent: Wednesday, March 20, 2013 8:06 PM
>> To: [email protected]
>> Subject: Tyco BB and AP sprinklers
>> 
>> OK, working late and can't figure this on out conclusively....not diagrams
>> match this case.
>> 
>> If you use BB heads at the peak of an attic with AP sprinklers at the hip
>> on
>> each end of the building and on elone at the eave along the entire length
>> of
>> the building since the bldg is over 60'-0" wide.
>> Figure 22 identifies the Dry System with BB's and the AP's at the peak, but
>> doesn't show the eave AP's.
>> Figure 20-B-2 identifies the BB heads and AP heads at the eave, but doesn't
>> show the hip.
>> 
>> I assume you have to follow the guidelines of Figure 22 and calculate 1,950
>> sqft including the hip and eaves until I get the 1,950 sqft.....anybody
>> know?
>> 
>> Thanks,
>> 
>> 
>> --
>> Greg McGahan
>> Living Water Fire Protection, LLC <http://www.livingwaterfp.com>
>> 1160 McKenzie Road
>> Cantonment, FL 32533
>> 850-937-1850
>> fax 850-937-1852
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> 
> 
> -- 
> Greg McGahan
> Living Water Fire Protection, LLC <http://www.livingwaterfp.com>
> 1160 McKenzie Road
> Cantonment, FL 32533
> 850-937-1850
> fax 850-937-1852
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