I don't know! The point of this question is indeed the difficulty in sorting it out. This "area" is not defined as a room, chase, shaft or closet. It is not labeled on the drawings and it amounts to the same type of area as a plenum under an HVAC unit except that it actually has the fan inside the unit which is inside the area.
There is less than 6" of clearance between the unit and the sheetrock or concrete (depending on the wall) on 3 sides. I agree with NFPA, common sense says you don't need a head bas the unit is sealed and if the fan catches on fire it has nowhere to go but into the living area which is protected. There is no duct, nor opening to anywhere except on the face of the unit. The EOR says no head, NFPA says not sure but common sense says no, and the local AHJ, says I don't know - seems like a head in ther outside of the unit is not going to do much. But there is nothing definitive about it IMHO. Greg McGahan Operations Manager Living Water Fire Protection 1160 McKenzie Road P.O. Box 877 Cantonment, Florida 32533 (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Friday, February 13, 2009 7:27 PM To: [email protected] Subject: Re: water source heat pumps If it is a high rise and these "closets" are not part of a continuous rated shaft how could you justify penetrations through the floors? On Fri, Feb 13, 2009 at 2:06 PM, Todd Williams <[email protected]> wrote: > What is the construction of the space? Are there exposed wood joists? Other > combustible loading? Does the hatch allow a person into the space or would > all work on the heat pumps have to be reaching through the opening? If it is > an unaccessible, N/C space, would 8.14.1.2.2 (2002) apply? > > > At 04:08 PM 2/13/2009, you wrote: >> >> A call to NFPA gets us to here: >> >> It doesn't fit anywhere to omit protection, but common sense would dictate >> that it is not required. >> >> He suggested we try hanging on to 8.15.1.2.1. >> >> Does anyone have any experience with these? >> >> Greg McGahan >> Operations Manager >> >> Living Water Fire Protection >> 1160 McKenzie Road >> P.O. Box 877 >> Cantonment, Florida 32533 >> (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 >> [email protected] >> >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Greg McGahan >> Sent: Friday, February 13, 2009 2:45 PM >> To: [email protected] >> Subject: RE: water source heat pumps >> >> Just got more info. The unit sits in a "closet" but there is NO ACCESS >> except through a panel on the front of the unit that allows access to the >> air filter. >> >> The only questionable fact to me is that there is an electric fan in the >> heat pump. >> >> >> Greg McGahan >> Operations Manager >> >> Living Water Fire Protection >> 1160 McKenzie Road >> P.O. Box 877 >> Cantonment, Florida 32533 >> (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 >> [email protected] >> >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of John O'Connor >> Sent: Friday, February 13, 2009 2:36 PM >> To: [email protected] >> Subject: RE: water source heat pumps >> >> Greg, >> One drawback that I see is future service work by another contractor, >> thinking that the entire floor is isolated by the FCV and having that one >> LIVE vertical branchline feeding all the utility closets. Could be a >> problem. >> >> John R. O'Connor >> National Fire Sprinklers, Inc. >> Nashville TN >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Greg >> McGahan >> Sent: Friday, February 13, 2009 1:48 PM >> To: [email protected] >> Subject: water source heat pumps >> >> OK gang I need some advice hopefully based on experience. >> >> We are doing an independent hotel that is being constructed more like a >> typical condominium. In the far end of each unit (room), there is a small >> enclosed closet without a door, but with a removable cover that houses a >> Water Source Heat Pump. >> >> I have assumed sprinkler will be required up to this point but I am open >> to >> comments on that. There is NO WAY to get concealed piping to the closet at >> this time. The Building is 9 Stories tall with separate FCV's on each >> floor >> etc. >> >> My Question is can I feed these closets like a shaft from the 1st floor >> system all of the way up in order to avoid a lot of grief and trouble to >> get >> the owner to add soffits in every Unit? >> >> All comments welcome except those that point out something painfully >> obvious >> I may be missing. >> >> Greg McGahan >> Operations Manager >> >> Living Water Fire Protection >> 1160 McKenzie Road >> P.O. Box 877 >> Cantonment, Florida 32533 >> (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 >> [email protected] >> >> _______________________________________________ >> Sprinklerforum mailing list >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email to:[email protected] >> (Put the word unsubscribe in the subject field) >> >> >> >> _______________________________________________ >> Sprinklerforum mailing list >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email to:[email protected] >> (Put the word unsubscribe in the subject field) >> >> _______________________________________________ >> Sprinklerforum mailing list >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email to:[email protected] >> (Put the word unsubscribe in the subject field) >> >> _______________________________________________ >> Sprinklerforum mailing list >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email to:[email protected] >> (Put the word unsubscribe in the subject field) > > Todd G. Williams, PE > Fire Protection Design/Consulting > Stonington, Connecticut > www.fpdc.com > 860.535.2080 _______________________________________________ > Sprinklerforum mailing list > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
