Page 34 - Mercury Lighting | Fluorescent Catalog
P. 34

SPECIFICATIONS:
• Recessed 2X4  uorescent luminaire featuring a computer designed precision optical system that provides indirect/di- rect illumination. An optically correct double arched re ec- tor enables precise indirect light distribution, while a center located perforated light shield provides the soft direct illu- mination.
• The system delivers comfortable illumination by  lling the en- tire volume of space evenly. Broad angle illumination lights walls and vertical surfaces creating a more open and com- fortable space. All components are recessed above the ceil- ing line. Install in ceilings as low as eight feet.
• Housing: 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 sup- ports are located on the sides.
• Indirect re ector: Two-piece system is CAD designed to the op- timum contour. 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.
• Center light shield: Die formed and fabricated from heavy gauge perforated steel and integrated with an internal white Mylar panel. Light shield is capable of swinging down for lamp access.
• Finish: A custom formulated non-glare white powder coating is applied to the re ector, light shield, and the housing after fabrication. Provides a re ectivity of at least 90%.
• T5 Lamps: Two or three 4Ft. linear  uorescent lamps; 28W-T5 or 54W-HO-T5.
• T8 Lamps: Two or three 4Ft. linear  uorescent lamps; 32W-T8. Others as speci ed.
• TT5 Lamps: Two or four 2Ft. twin-tube compact  uorescent lamps; 40W-TT5, 50W-TT5, or 55W-TT5, end-on-end down the center.
Shield Detail
34 MERCURY LIGHTING FLUORESCENT
ZENITH I ZB SERIES
2X4 Center Light Shield Indirect/Direct Luminaire
Fixture Type: Job Information:
• Ballasts T5: Electronic programmed start, normal light out- put, high power factor, THD less than 10%. Up to 2-lamps per 28W-T5 ballast. Up to 3-lamps per 54W-HO-T5 ballast. Lutron or Advance dimming ballasts as speci ed.
• Ballasts T8: Electronic instant start, normal light output, high power factor, THD less that 10%. Up to 3-lamps per bal- last. Optional T8 performances: rapid start circuit, high light output, or low-watt. Lutron or Advance dimming ballasts as speci ed.
• Ballasts40W-TT5:Electronicinstantstart,normallightout- put, high power factor, THD less that 10%. Up to 2-lamps per ballast. Optional performances: rapid start circuit. Lutron or Advance dimming ballasts as speci ed.
• Ballasts 50W and 55W-TT5: Electronic programmed start, normal light output, high power factor, THD less that 10%. Up to 4-lamps per ballast. Lutron or Advance dimming bal- lasts as speci ed.
• Voltage:Multi-voltoperatesarangefrom120V-277V,50HZ-60HZ. Dedicated voltages on request.
• Emergency battery back up: Integrated packs range from 500 up to 1400 lumen output. Varies with lamp type.
• Air return: Optional air return slots allow room air to be cir- culated through housing and back into plenum.
• Installations: 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 suspension points are also provided for securing to building structure. A quick wiring access plate is located on back of the housing. Additional knockouts provided. Factory installed lamps and power whips as speci ed.
• ULandCULlisted1598andbearstheirlabel.Suitablefordry locations or optional damp locations with UL Damp Label. Union made and labeled.
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