www.johnsonsystems.com
5
12" Minimum Clearance for Hot Air Exhaust
18" Minimum Clearance KEEP CLEAR
12" Minimum Clearance for Cool Air Intake
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TOP VIEW
REAR VIEW
BOTTOM VIEW
6.80"
30"
27"
14"
17"
6.80"
Installation
Mounting
The JS-ICON Series dimmer racks can be mounted to any wall surface capable of supporting
its weight of approximately 66 lbs (30 kg) for each rack. Four 1/4" (6mm) screws or bolts are
required to fasten the rack safely to the wall (see the drawing below for mounting locations and
dimensions). To access the mounting locations, simply remove the lid. The lid is secured by two
(2) #8-32 x 1/2" lid mounting/ground screws with integral star washers located at the top-center
and bottom-center of the lid, as well as four (4) quarter-turn fasteners located in each corner.
Use a #2 Philips screwdriver to remove the two (2) lid mounting/ground screws. To release the
four (4) quarter-turn fasteners, use a flathead screwdriver to turn them a quarter-turn counter-
clockwise. Once the lid mounting/ground screws are removed and the fasteners are released,
the lid can be removed. When remounting the lid, it is very important to re-install and tighten the
two (2) mounting/ground screws to ensure ground continuity from the main chassis/enclosure to
the lid. The quarter-turn fasteners are easily locked into place by lining the slot up horizontally,
and pushing it in with a thumb.
WARNING: Risk of electrical shock. Before the power supply is turned on, ensure the lid is
securely fastened to the rack with the two (2) lid mounting/ground screws and four (4) quarter-
turn fasteners. Never remove the lid when the power supply is turned on.
WARNING: Mount the dimmer racks only as indicated below. Failure to comply may cause
thermal overheating.