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CAUTION: II THIS SHEE I IS NOT 30"x42" 1-1 IS A REDUCED PRINT <br />Al <br />UA <br />61 <br />AI IV <br />1/4"=1'-0" <br />1 1 __1 1 1 <br />0 2' 4' 8' <br />16' <br />SHEETGENERAL NOTES: <br />SEE AO.2 FOR ADDITIONAL <br />• THE CONTRACTOR SHALL FIELD VERIFY ALL EXISTING CONDITIONS AND NOTIFY <br />THE ARCHITECT IMMEDIATELY OF ANY DISCREPANCIES OR CONFLICTS THAT MIGHT <br />ARISE. <br />REFLECTED CEILING PLAN <br />1. SEE SHEET A0.2 FOR ADDITIONAL GENERAL NOTES. <br />2. SEE KEYNOTE INFORMATION FOR ANY REQUIRED INSULATION. <br />3. FIXTURES SHALL HAVE A MINIMUM OF TWO TUBES AND SHALL PROVIDE 50 <br />FOOT—CANDLES AT DESKTOP LEVEL (30" ABOVE FINISHED FLOOR) WITH A <br />MAXIMUM UNIFORMITY RATIO OF 1.5:1. <br />4. THE LESSOR SHALL PROVIDE CEILING MOUNT OCCUPANCY SENSORS OR <br />VACANCY SENSORS (PREFERRED). NO MORE THAN 1,000 SQUARE FEET <br />SHALL BE CONTROLLED BY ANY ONE SENSOR. <br />ACOUSTIC REPORT <br />1. FOR IN —CEILING FAN UNITS, INSTALL A SHEET METAL BOOT OVER THE <br />AIR INTAKE FILTER THAT IS AT LEAST 2' LONG AND LINED WITH 1" <br />DUCT LINER. ORIENT THE OPENING TO THE BOOT ON THE TOP FACING <br />UPWARD TO REDIRECT THE SOUND AWAY FROM THE SPACES BELOW. <br />2. FOR IN —CEILING FAN UNITS, REINFORCE THE CEILING TILE OR BACKS <br />OF LIGHT FIXTURES IN CLOSE PROXIMITY TO UNITS WITH A BARRIER TO <br />REDUCE NOISE BREAKOUT TO THE SPACE BELOW. THIS CAN BE <br />ACHIEVED BY APPLYING MASS TO THE BACK OF THE CEILING TILES OR <br />FIXTURES FOR AN AREA THAT EXTENDS AS LEAST 4 FEET BEYOND <br />THE UNIT IN ALL DIRECTIONS. WE RECOMMEND EITHER THE FOLLOWING <br />OPTIONS: <br />OPTION 1: INSTALL A LAYER OF 1 /2' OR 5/8" GWB ON THE BACKSIDE <br />OF ACT WITH 1" THICK FIBERGLASS ON TOP (APPROX. 2LBS/SF ADDED <br />WEIGHT). <br />OPTION 2: INSTALL A MASS LOADED VINYL CEILING TILE BACKER <br />PRODUCT WITH BUILT IN INSULATION. USE SOUND SEAL NBCTC MODEL <br />1-1-1 FOR ACT AND NBCT LIGHT FIXTURE COVERS (APPROX. 1LB/SF <br />ADDED WEIGHT). <br />3. LINE THE FIRST 5 FEET OF SUPPLY AND RETURN DUCT FROM THE <br />UNIT WITH 1" DUCT LINER. <br />4. FOR ANY NEW DUCTWORK INSTALLED, RECTANGULAR DUCTWORK IS <br />PREFERRED OVER ROUND DUCTWORK GIVEN THAT IT IS MORE <br />EFFICIENT AT REDUCING DUCT —BORNE NOISE. <br />5. FOR ALL DIFFUSERS, USE FLEX DUCT FOR AT LEAST 3 FEET OF DUCT <br />BEFORE DIFFUSERS. FLEX DUCT ABSORBS SOUND BEFORE IT BECOMES <br />NOISE THROUGH THE DIFFUSER. <br />6. IF RETURN GRILLES ARE NOT DUCTED, THIS WILL CREATE A POTENTIAL <br />PATH FOR NOISE BETWEEN SPACES. INSTALL A SHEET METAL BOOT <br />OVER NON —DUCTED RETURNS AND LINE WITH 1" DUCT LINER. BOOTS <br />OPENINGS SERVING ADJACENT ROOMS SHOULD NOT FACE TOWARD <br />EACH OTHER. <br />7. EQUIP FAN UNITS WITH VIBRATION ISOLATION TO REDUCE <br />STRUCTURE —BORNE NOISE AND RATTLING COMING THROUGH THE <br />CEILING. IMPLEMENT THE FOLLOWING MITIGATION: <br />ISOLATE UNITS WITH A NEOPRENE HANGER WITH A MINIMUM OF 0.35" <br />STATIC DEFLECTION. USE MASON INDUSTRIES NEOPRENE HANGER TYPE <br />HD OR EQUIVALENT. HANGER SHALL BE SIZED TO MAXIMIZE <br />DEFLECTION DEPENDING ON EQUIPMENT WEIGHT. <br />FOR DIAGONAL SEISMIC BRACING, USE AIRCRAFT CABLE WITH A SLIGHT <br />AMOUNT OF SLACK RATHER THAN RIGID ANGLE BRACKETS. <br />PROVIDE FLEXIBLE CONNECTORS WHERE DUCTWORK ATTACHES TO <br />INDOOR UNITS. USE VENTFABRICS TYPE VENTGLAS OR EQUIVALENT. <br />REFLECTED CEILING NOTES <br />TYPICAL INSTALLATION OF LIGHT SWITCHES AND T—STATS <br />THROUGHOUT (DESIGN BUILD), U.O.N., SEE 16 <br />A8.1 <br />F2 PROVIDE EXHAUST FAN. <br />® NEW GYPSUM BOARD CEILING — PRIOR TO CLOSING THE CEILING, THE LESSOR <br />SHALL COORDINATE WITH THE GOVERNMENT FOR THE INSTALLATION OF ANY <br />ITEMS ABOVE THE CEILING. <br />PROVIDE NEW GRID & CEILING TILES THROUGHOUT. ACOUSTICAL CEILING TILES <br />SHALL BE SPECIFIED TO ACHIEVE A NOISE REDUCTION COEFFICIENT (NRC) OF <br />0.75 OR HIGHER AND A CEILING ATTENUATION CLASS (CAC) OF 35 OR HIGHER. <br />USE USC MARS ACOUSTICAL PANELS (OR EQUAL). <br />DASHED LINE INDICATES LOCATION OF UPPER CABINETRY. <br />© PROVIDE INDEPENDENT 24/7 COOLING AND PROPER RELATIVE HUMIDITY <br />CONTROL, AS REQUIRED BY EQUIPMENT. DATA TO BE PROVIDED BY AGENCY. <br />UP TO 500 ABOA SF SHALL RECEIVE COOLING AT ALL TIMES (24 HRS A <br />DAY, 365 DAYS A YEAR) FOR PURPOSES OF COOLING THE DESIGNATED <br />SERVER ROOM. THE BRITISH THERMAL UNIT (BTU) OUTPUT OF THIS ROOM <br />WILL BE UP TO 24,000 BTUs PER HOUR. THE TEMPERATURE OF THIS ROOM <br />SHALL BE MAINTAINED AT 72 DEGREES F AT ALL TIMES, WITH HUMIDITY <br />CONTROL NOT TO EXCEED 60% RELATIVE HUMIDITY. <br />0 PATCH AS REQUIRED. <br />ROOM TO HAVE DIMMER SWITCH <br />CEILING GRID TO BE CENTERED IN THIS ROOM, U.O.N. <br />10 PROVIDE DIMMER SWITCH FOR THESE FIXTURES. <br />CEILING LEGEND <br />EXISTING 2'x4' SUSPENDED CEILING GRID TO REMAIN <br />5/8" TYPE "X" GYPSUM BOARD CEILING OR SOFFIT — USE RATED <br />MATERIAL & CONSTRUCTION WHERE REQUIRED. <br />au NEW 2'x4' LED LIGHT FIXTURE: FORMFOCUS FFL 24 LED LAY —IN <br />(OR EQUAL). <br />ON NEW RECESSED LED DOWNLIGHT <br />4 NEW WALL —MOUNTED 2' WRAP —AROUND FLUORESCENT LIGHT <br />FIXTURE. 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