Plan Notes 155 Pleasant StPlan Notes 155 Pleasant St
Provisions for visual notification
907.5.2.3.4 Group R-2. In Group R-2 occupancies required by Section 907 to have a fire alarm system, all dwelling units and sleeping units shall be provided with the capability to support
visible alarm notification appliances in accordance with (ICC A117.1.)-521 CMR.
Group R-2 occupancies with a fire alarm system are required to have all dwelling units wired to support visible alarm notification appliances. This includes all dwelling and sleeping
units, not just those classified as either Type A or B. In accordance with Sections 1005.2 through 1005.4.4 of ICC A117.1, the building alarm system wiring must be extended to the unit
smoke detectors so that audible/visible alarm notification appliances may be connected to the building fire alarm system to notify residents with hearing impairments of an emergency
situation. (521 CMR) contains additional information on the classification criteria and requirements for accessible dwelling units.