TOPAZ 24 RACK
INSTALLATION INSTRUCTIONS
The TOPAZ 24 dimmer racks are easy-to-install front-wired electrical distribution panels and are connected similarly to a circuit breaker
panel. These instructions will tell you how to mount, wire, assemble, test and maintain TOPAZ 24 racks. The instructions in this
manual are provided in the order of installation.
In the U.S.A., this equipment is intended to be installed in accordance with the National Electrical Code and local electrical regulations.
In Canada, installation shall be in accordance with the Canadian Electrical Code.
Step 1 - Unpack rack(s)
In each rack box you will find one TOPAZ 24 rack, two keys, one set of circuit numbers, and one installation manual (this document).
Dimmer and control modules are shipped separately. Leave control module and dimmer modules in their packing and store in clean,
dry place until ready to perform Step 11. After unpacking, please inspect the rack for any possible shipping damage. Document any
shipping damage and contact the freight company and Leviton.
Step 2 - Mount rack(s)
Racks must have 6" (152mm) minimum clearance above fan and 36" (914mm) minimum clearance in front for proper cooling and
access. Racks should be located in a clean, dust free environment within proper operating temperature range. See Specifications -
Table IV, pg 11.
One rack per location:
Note:
If you have a multiple rack installation, skip ahead to the next section for instruction.
• Locate stud or a secure framing member in wall where rack is to be mounted.
• Using the dimensions shown in Figure 1 mark location of one row of 3 mounting holes on wall over stud.
• Fasten rack to wall with appropriate fasteners.
Note:
Fully loaded rack weighs 66 pounds (29.9 Kg.) not including wire weight.
Two racks mounted together:
• Locate two studs or secure framing members on 16” (406mm) centers in wall where racks are to be mounted.
Note:
If appropriately spaced studs or framing members cannot be located, racks may have to be mounted on Unistrut or equivalent
supporting channels. Skip ahead to the next section for instructions.
• Using the dimensions shown in Figure 1 mark location of one row of 3 mounting holes on wall over each stud.
• Fasten racks to wall with appropriate fasteners.
Note:
Two fully loaded bussed racks weigh 139 pounds (63 Kg.) not including wire weight.
Racks mounted to Unistrut supports:
Note:
If more than two racks are mounted together, the mounting holes are no longer on 16” centers.
• Using the dimensions shown in Figure 1 mark the wall with the locations of two horizontal mounting channels.
• Fasten two mounting channels, Unistrut P3300T or equivalent (not supplied), to the wall at each vertical stud or framing member.
• Insert Unistrut nuts (not supplied) on 14” (356mm) centers in each channel for each rack section to be mounted.
• Mount the rack assembly to the mounting channels using bolts and lockwashers.
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