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MEGAFLOODTM INSTALLATION INSTRUCTIONS
Thank you for buying RAB lighting
fi xtures. Our aim is to design the
best quality products to get the job
done right. We’d like to hear your
comments. Call the Marketing
Department at 888-RAB-1000, or
email: marketing@rabweb.com
IMPORTANT
READ CAREFULL Y BEFORE INST ALLING FIXTURE. RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE.
RAB fi xtures must be wired in accordance with the National Electrical Code and all applicable local codes. Proper
grounding is required for safety. This product must be installed in accordance with the applicable installation code by a
person familiar with the construction and operation of the product and the hazards involved.
WARNING: Make certain power is OFF before installing or maintaining fi xture.
SLIPFITTER MOUNTING
1. The slipfi tter fi ts a 2 3/8” O.D. tenon. Place the
slipfi tter over the tenon and secure with the (2) Set
Screws on the side of the slipfi tter.
2. To adjust the angle of the fi xture:
a. Remove (2) Cover Plate Screws and the
Round Cover Plate.
b. Hold the top of the fi xture, loosen the
Locking Bolt and swivel the fi xture.
c. Tighten the Locking Bolt and re-attach the
Round Cover Plate.
TRUNNION MOUNTING
1. Mount fl oodlight to suitable fl at surface with adequate
hardware for that surface.
2. To adjust the angle of the fi xture:
a. Hold top of fi xture, loosen (2) Trunnion
Bolts and the Positioning Screw.
b. Swivel the fi xture until positioning screw is in
one of the Positioning Holes.
c. Tighten the Trunnion Bolts and the
Positioning Screw.
Locking
Bolt
Set Screws
Round Cover
Plate
Cover Plate
Screws
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Trunnion
Bolts
2.53”
Positioning
Positioning
Screw
1
Holes
5.2”
3.5”
2.5”
.Ø 0.532”
Ø 0.80”
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MEGAFLOODTM INSTALLATION INSTRUCTIONS
REFLECTOR ADJUSTMENT
1. Loosen (4) door screws, open door.
2. Push each side of the refl ector at point shown below.
The Refl ector will lock in position.
3. For even distribution, each side of the refl ector should
be adjusted to the same position.
4. Refl ectors are factory set at the widest beam,
Position #1.
5. To move refl ector back in, gently lift up the
refl ector piece with a fl at screwdriver. Bend
refl ector back and place behind the 1st position stop.
Wide Beam
Position #1
Middle Beam
Position #2
Position #2
Shown
Narrow Beam
Position #3
GUARD INSTALLATION
1. Mount GDMEGW Guard with (4) #10-24 x 3/8”
screws as shown below.
2. Screws are provided with the Guard.
(4) Screws
HOOD INSTALLATION
1. Mount 4” Hood MEGH4 or the 9” Hood MEGH9
with (4) #10-24 x 3/8” screws as shown below.
2. Screws are provided with the Hood.
(4) Screws
Push Here
Hinge
Hinge
3 Position Stops
Adjustable Refl ector: Patent Pending
GUARD & HOOD INSTALLA TION
The wire guard and the 4” Hood MEGH4 or the 9” Hood
MEGH9 can be mounted to the same fi xture
with (4) #10-24 x 3/8” screws as shown below.
CLEANING & MAINTENANCE
CAUTION: Be sure fi xture temperature is cool
enough to touch. Do not clean or maintain while
fi xture is energized.
1. Clean glass lens with non-abrasive glass cleaning
solution.
2. As lamps age, light output diminishes. Mass
relamping at regular intervals ensures full light output
at the highest effi ciency.
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MEGAFLOODTM INSTALLATION INSTRUCTIONS
LAMP INSTALLATION
CAUTION: Prior to installing, check that the lamp is
the correct ANSI type and wattage. Observe lamp
manufacturer’s recommendations on lamp operation,
ballast type and burning positions.
1. Disconnect power. Make sure fi xture and lamp are
cool enough to touch.
2. Loosen (4) screws from the door of the fi xture.
Screws will remain captive to door. Open and
swing door down on hinges.
3. Fully screw lamp into socket.
4. Before closing door, make sure door gasket is
properly seated all around the door.
5. Check that all mounting bolts are tight.
6. Close door. Tighten screws.
WIRING
All units are factory wired for 277V, except for units
with a requested 120V Photocell(“/PC”). If voltages
other than 277V are required, remove ballast cover and
rewire for the appropriate voltage.
1. Connect the black fi xture lead to the (+) LINE
supply lead.
2. Connect the white fi xture lead to the (-) COMMON
supply lead.
REPLACEMENT LAMPS AND
BALLASTS
RAB Lamp ANSI RAB Ballast
Wattage Catalog# Code Catalog#
High Pressure Sodium
250 LHPS250 S50 BHPSH250QT
400 LHPS400 S51 BHPSH400QT
Metal Halide
175 LMH175MOG M57 BMHH175QT
200PS LMH200PS M136 BMHH200PSQ
250 LMH250 M58 BMHH250QT
250PS LMH250PS M153 BMHH250PSQ
320PS LMH320PS M154 BMHH320PSQ
350PS LMH350PS M131 BMHH350PSQ
400 LMH400Z M59 BMHH400QT
400PS LMH400PS M155 BMHH400PSQ
480V Ballasts are available, consult factory.
TROUBLESHOOTING
1. Is the proper lamp is installed? Check the wattage
and ANSI code on the fi xture label against markings
on the lamp. Refer to Replacement Lamp table
above for verifi cation.
2. Make sure the lamp is not defective. Try a lamp
known to be in operating condition.
3. Check that the line voltage at fi xture is correct. Refer
to wiring directions.
3. Connect the Ground wire from fi xture to supply
ground.
4. All unused leads must be capped and insulated.
Supply
Note: These instructions do not cover all details or variations
in equipment nor do they provide for every possible situation
during installation, operation or maintenance.
4. Is there voltage at the lamp socket? If there is no
voltage, check all connections.
5. Is the fi xture grounded properly?
6. Is the photocell functioning properly (if used)
?
ACCESSORIES
Wire Guard: GDMEGW
4” Hood MEGH4
9” Hood MEGH9
Factory Installed Photo Cells
120V Button /PC
277V Button /PC2
120V Swivel /PCS
RAB fi xture designs are protected under
U.S. and International Intellectual Property laws.
Patent Pending
MEG-IN-0208
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