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provided on the exterior side of such exit doors.
3.4.2 Fire Sprinkler System
3.4.2.1 Fire sprinkler system design for AR projects is normally
accomplished through a performance specification, with the
contractor's design engineer responsible for a detailed system design.
The design criteria identified in UFC 3-600-01: "Design: Fire
Protection Engineering For Facilities" must be conveyed to the
contractor's designer in the contract documents. Note that the hose
stream and remote areas for various hazard classifications are more
stringent than NFPA 13 requirements.
3.4.2.2 Identify design densities for water flow and sprinkler types on
a room-by-room basis so hydraulic calculations may be performed.
Flow test data must be provided for the contractor to determine if the
cost of oversized piping will need to be included in the bid.
3.4.2.3 In addition to UFC 3-600-01: "Design: Fire Protection
Engineering For Facilities", other design criteria may be applicable.
ETL 1110-3-446 provides thrust block design guidance. For aircraft
hangar projects, ETL 1110-3-481 covers AFFF clean up
requirements, ETL 1110-3-484 covers fire protection for fixed wing
aircraft and ETL 1110-3-485 covers fire protection for helicopter
hangars.
3.4.2.4 UFC 3-600-01: "Design: Fire Protection Engineering For
Facilities" requires that every portion of a sprinkled building be
sprinkled; it does not allow exceptions for computer or electrical
rooms, or arms vaults.
3.4.3 Fire Alarm System
3.4.3.1 An addressable Class B fire alarm system will be provided,
consisting of manual break glass stations at exits, combination horn/
visual signals located in accordance with ADA requirements, duct
smoke detectors in air-handling units as required by code, and
magnetic hold-open devices with smoke detectors for corridor fire
doors. The system should be addressable, zoned, noncoded and fully
supervised.
3.4.3.2 A fire alarm riser diagram will be provided in the construction
documents. The control panel should be fed from a panelboard to
provide 120V, 1-phase, 2-wire plus ground to the control panel.
3.4.3.3 A remote annunciator panel should be installed at an entrance
designated by the Tenant.
UFC 4-171-05
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