Todd - The think the underlying question is whether you're required (verses it being optional) to meet the current standard that requires QR or residential heads in dwelling units. Assuming the original installation was done prior to the above requirement, you and the local AHJ may say the building is 'grandfathered'. In that case, select a replacement sprinkler that is SR listed and be done with it. Otherwise, it would seem both sprinklers will need to be upgraded to QR or residential (2002 edition - section 8.3.3.4).
Ed Kramer Littleton, CO >I have been looking at an existing hotel building where each guest room >has >a Central GB-LO extended coverage sidewall sprinkler covering the sleeping >area and a Central Model H sidewall covering the space between the >sleeping >are and the room door. Since the GB-LO's are under recall, they are going >to >be replaced, most likely with Tyco TY-FRB K8.0 extended coverage >sidewalls. >My question is this; the Model H is a standard response sprinkler and the >TY-FRB's are listed for both standard and quick response. Even though it >is >listed for SR, I assume that the response time is in QR territory. Is >there >going to be a problem mixing these two sprinklers? The demand area is the >two sprinklers and the FRB spacing is 16x22 and we are using UL criteria. > >Todd G. Williams, PE > >Fire Protection Design/Consulting > >Stonington, Connecticut > >860.535.2080 > >www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
