Installing a fire sprinkler system meeting NFPA 13 in a 4-story
non-combustible construction hotel.

 

Within each dwelling unit there is a non combustible concealed space
housing a mechanical HVAC unit.  The non combustible concealed space is
located along an exterior wall within each dwelling unit.

 

The concealed non-combustible space housing the mechanical HVAC unit is
constructed of metal stud/sheetrock walls and concrete floor and
ceiling.  There is complete separation floor to floor at all floors.
The only opening in the concealed space is in the wall in each dwelling
unit for the vent.  The non combustible concealed space is 2'-4" length
X 2'-10" width.  As you can imagine, the space is filled with the unit
and the ductwork that extends off the top of the unit to supply the
heating/cooling for dwelling unit.

 

Does the presence of the electric fan motor or the HVAC unit constitute
combustible loading in the non-combustible concealed space per NFPA 13
2002 Edition Sections 8.14.1.2.1 and 8.14.1.2.2?

 

The local authority is concerned with a fire starting within the motor
unit within the space and believes the space should be protected with
fire sprinklers.

 

Is fire sprinkler protection required?

 

Thanks for your help,

 

Rick E. Green, SET

East Coast Fire Protection, Inc.

1113 Cavalier Boulevard

Chesapeake, Virginia 23323

757/485-7486(p)

757/485-8730(fax)

[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> 

 

 

 

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