A three-gang flush-mounted back-box measures 7-3/4 inches by 4-11/16 inches by 3-1/4 inches, specifically utilizing a Hubbell 263 box. A separate three-gang mud ring mounts directly to the back-box for faceplate and device attachment. Conduit stubs route upwards through the ceiling line, with specific pathway requirements governed by system type and general notes regarding continuous conduit versus J-hook support.
5 1 KEYNOTES: GENERAL NOTES: 1. BACK-BOX: PROVIDE 7-3/4" X 4-11/16 "X 3-1/4" (HUBBEL 263) FLUSH MOUNTED BOX. 2. MUD-RING: PROVIDE 3-GANG MUD RING FOR MOUNTING OF DEVICE / FACEPLATE. MUD RING SHALL BE SEPARATE COMPONENT FROM BACK-BOX. 1. REFER TO SYSTEM SYMBOL LEGEND - PATHWAY REQUIREMENT NOTES TO CONFIRM IF CONDUIT STUBS TO CEILING AND USE OF J-HOOKS IS ALLOWED OR IF CONTINUOUS CONDUIT IS REQUIRED FOR ALL LOCATIONS. PARTICULAR ATTENTION SHALL BE GIVEN TO CONDUIT ROUTING NOTES AS EACH SYSTEM (AV, COMM, SECURITY, ETC.) HAS SPECIFIC CONDUIT ROUTING REQUIREMENTS. 2. INTENT OF THIS DETAIL IS TO DEPICT AV RACEWAY AND CABLING REQUIREMENTS. 3. DATA TERMINATION MAY RESIDE WITHIN BACK BOX. REFER TO COMM DRAWINGS AND DETAIL C.03 FOR ADDITIONAL INFORMATION. CEILING 3 # 4
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