Page 56 - Mercury Lighting | Fluorescent Catalog
P. 56

SPECIFICATIONS:
• Recessed 2X4  uorescent luminaire featuring a computer designed precision optical system that provides indirect/direct illumination. An optically correct double arched re ector en- ables precise indirect light distribution. A hybrid light shield, perforated sides with a straight cross blade louver down the center, 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 com- fortable space.
• All components are recessed above the ceiling 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- port clips are located on the sides.
• Indirect re ector: Two-piece system is CAD designed to the optimum contour. One side is securely screwed into the hous- ing with hidden hardware. The other side is held in place with quarter turn cam locks for easy ballast access.
• Center hybrid light shield: Die formed and fabricated using a combination of heavy gauge perforated steel for each side and standard cold rolled steel for the center cross blades. Integrated with internal white Mylar panels. 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: Four twin-tube compact  uorescent lamps; 40W-TT5, 50W-TT5, or 55W-TT5.
Shield Detail Shield Detail
56 MERCURY LIGHTING FLUORESCENT
ZENITH IV ZBL SERIES
2X4 Center Hybrid Light Shield Indirect/Direct Luminaire
Fixture Type: Job Information:
• Ballasts T5: Electronic programmed start, normal light output, high power factor, THD less than 10%. Up to 2-lamps per 28W-T5 ballast. Up to 3-lamps per 54W-HO-T5 ballast.
• Ballasts T8: Electronic instant start, normal light output, high power factor, THD less that 10%. Up to 3-lamps per ballast. Optional T8 performances: rapid start circuit, high light output, or low-watt.
• Ballasts 40W-TT5: Electronic instant start, normal light out- put, high power factor, THD less that 10%. Up to 2-lamps per ballast. Optional performances: rapid start circuit.
• Ballasts 50W and 55W-TT5: Electronic programmed start, normal light output, high power factor, THD less that 10%. Up to 4-lamps per ballast.
• Voltage: Multi-volt operates a range from 120V-277V, 50HZ-60HZ. Dedicated voltages on request.
• Dimming: Lutron or Advance dimming ballasts as speci ed.
• Emergency battery backup: 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-cu- lated 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.
• Electrical: A quick wiring access plate is located on back of the housing. Additional knockouts provided. Factory installed lamps and power whips as speci ed.
• 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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