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STEP 4: Fastening Duct Cross and Side Channel(s) to Curb Cross
Channels and Main Curb Assembly
Hardware Required: Screws, SMS (A) 12 x 0.625 (IHH)
Quantity: ERT-52
Instructions: • Position the Duct Cross and Side Channels (shown in gray) as depicted
4
(16) of the above screws are needed to attach the Duct Cross and Side Channels to
the Curb Cross Channel and Main Curb Assembly
ERT-58/64 and ERT-74
(24) of the above screws are needed to attach the Duct Cross and Side Channels to
the (2) Curb Cross Channels
• Align the holes and fasten using the above hardware.
ERT-52
ERT-74
ERT-58 &
ERT-64
®
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