
CBT
BACK-LIT TROFFER
© 2020 Columbia Lighting, a division of Hubbell Lighting, Inc. Specifications subject to change without notice.
701 Millennium Blvd • Greenville, SC 29607 / Tel 864.678.1000 / Website www.columbialighting.com
Page
2/2
Rev.
04/03/20
COL-CBT-ins
CBT Instruction Manual
ACCESSORY PARTS
STEP 1
Assemble the four frames with screw A to a whole square.
STEP 2
Fix the square frames to the ceiling with Screw B.
STEP 4
Put the panel into the frame square.
STEP 3
Demount one frame.
STEP 5
Fix the last frame with screw A.
INSTALLATION METHOD 2: SURFACE MOUNTING
Expansion bolts
Screw B(KA4X25)
Screw A(KA3X10)
Screw A
Expansion bolts
Screw B