Page 50 - Mercury Lighting | Fluorescent Catalog
P. 50

SPECIFICATIONS:
• Ultra shallow recessed 2X4  uorescent luminaire featuring a computer designed precision optical system that provides indirect/direct illumination. An optically correct double arched re ector enables precise indirect light distribution. A center mounted drop-down two-piece perforated split light shield provides the soft direct illumination.
• The system delivers comfortable illumination by  lling the entire volume of space evenly. Broad angle illumination lights walls and vertical surfaces creating a more open and comfortable space.
• All components are recessed above the ceiling line except the drop-down split light shield, which protrudes down 1-7/8".
• Housings are die formed from 20GA cold rolled steel and fabricated in a computer-controlled operation. Spot-welds and rivets hold all parts together for strength and unity. Pry-out style grid supports are located on the sides.
• The indirect re ector, CAD designed to the optimum con- tour, is a two-piece system. One side is securely screwed into the housing with hidden hardware. The other side is held in place with quarter turn cam locks for easy ballast access.
• The center split light shields are die formed and fabricat- ed from heavy gauge perforated steel and integrated with internal white Mylar panels. Each light shield is capable of swinging down for lamp access.
• A custom formulated non-glare white powder coating is applied to the re ector, light shields, and the housing after fabrication. Provides a re ectivity of at least 90%.
Shield Detail Shield Detail
50 MERCURY LIGHTING FLUORESCENT
ZENITH IV ZBDS SERIES
2X4 Center Drop Split Light Shield Ultra Shallow Indirect/Direct Luminaire
Fixture Type: Job Information:
• Lamping options: Four 2Ft. twin tube compact  uorescents; 40W-TT5, 50W-TT5, or 55W-TT5, end-on-end down the center. Two 4Ft. linear T5  uorescents; 28W-T5 or 54W-HO-T5.
• Ballasts: Full electronic, normal light output, high power factor. See ordering data for complete speci cations. Multi- volt standard with most compact TT5 and linear T5 units. Dimming ballasts are voltage speci c.
• Emergency battery back up: Integrated packs range from 450 up to 1150 lumen output. Varies with lamp type.
• Air return: Optional air return slots allow room air to be circulated back into plenum.
• A quick wiring access plate is located on back of the housing. Additional knockouts provided. Factory installed lamps and power whips as speci ed.
• Designed for installation into NEMA Type G lay-in acoustical grid ceiling systems, 1" grid or 9/16"  ne-line grid. Optional  t available for screw slot grid. For NEMA Type F dry wall applications an additional  ange kit must be used with Type G housing. Four pullout type security clips, located in the housing, lock over the ceiling grid work. Four auxiliary sus- pension points are also provided for securing to building structure.
• UL and CUL listed 1598 and bears their label. Suitable for dry locations or optional damp locations with UL Damp Label. Union made and labeled.
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