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MEGAFLOOD

TM

 INSTALLATION INSTRUCTIONS 

®

Page 3

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.

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)

?

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.

MEG-IN-0208

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.

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.

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

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.

3.  Connect the Ground wire from fi xture to supply 

ground.

4.  All unused leads must be capped and insulated.

Supply

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