HARD OF HEARING RESIDENTS AND SMOKE DETECTORS:smokehearing.sdcpm.com

1: A visual appliance used to awaken a sleeping, hearing impaired person shall be permanently installed and located 16 feet maximum from the pillow or "head of the bed" 
location measured horizontally.

2: Wall mounted appliances located at least 24 inches below the ceiling shall have a minimum effective intensity of 110 candelas.
3: Ceiling mounted appliances and wall mounted appliances located less than 24 inches below the ceiling is to have a minimum effective intensity of 177 candelas.
4: Additional smoke alarms may be required in common areas in the unit that are frequented by the hearing impaired household member.


See NFPA 74 for details