TOPAZ 96 RACK
INSTALLATION INSTRUCTIONS
The TOPAZ 96 dimmer racks are easy-to-install front-wired electrical distribution racks and are connected similarly to a
circuit breaker panel. These instructions will tell you how to set, wire, assemble, test and maintain TOPAZ 96 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)
With each rack you will find two keys, two sets of circuit numbers, and one installation manual (this document). Dimmer
modules and the two Rack control modules ship separately. Leave control modules and dimmer modules in their packing
and store in a clean, dry place until ready to perform Step 12.
After unpacking, please inspect the rack for any possible shipping damage. Document any shipping damage, and contact
the freight company and Leviton.
Step 2 - Assemble racks
If you have one rack, or factory-assembled racks shipped in one section, or individual racks at various locations, no
assembly is required. Go on to the next section titled
"Set Rack(s)".
All multiple rack systems will be factory assembled. If system contains more than two racks it will be disassembled for
shipment.
If you have rack sections to be joined together follow the instructions below:
• Line up the sections in the order shown on the custom assembly drawings shipped with the racks.
• Verify that any protruding bussing lines up with its mating part and that the foam gasket is completely in place to seal the
opening between the sections.
• Slide the sections together.
• Bolt the racks together with six keps nut, toothed lockwasher and bolt sets (supplied), making sure the lockwasher is
under the head of the bolt.
•
If the sections contain lateral bussing, line up the mating parts including any spacers and stiffeners provided. See
Figure 1 (on next page) for proper assembly order.
•
Bolt the bus bars together with bolts, flat washers (one per side), Belleville spring washers and nuts supplied.
Note:
Belleville spring washers look similar to flat washers except that they are cup-shaped. These washers must be
installed before unit is energized.
Step 3 - Set rack(s)
Racks must have 12" (305mm) 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, page 13. If conduit access is to be through the bottom, skip to Step 4 for additional
instructions and then return to this step.
•
Place rack(s) and adjust leveling feet so that racks are level and plumb.
•
If no conduit is to enter the top of the rack, secure the rack at the top to the building structure.
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