ETC Unison ERn Wall-mount Control Enclosure - Manual (Page 16)

12 Unison ® ERn Wall Mount Enclosure Installation Manual
Install the Rack Enclosure
The wall must be strong enough to hold the rack fully populated with modules, conduit and
wire. The maximum weight of an ERn enclosure is approximately 45 lbs (20.4 kg).
Step 1: Determine where your rack will be installed using the weight and dimension
requirements detailed in “Where to Install the Enclosure,” page 8 .
Step 2: Use the measured slot dimensions located in the graphic below to mark the hole
locations for the mounting hardware.
Step 3: Drill the holes and install the mounting hardware for each rack.
• Four 3/8” (8-10mm) bolts or screws 2-4” (50-100mm) long, and suitable
wall plugs are suggested mounting hardware (lag bolts recommended).
• All hardware must support the weight of the rack unit fully populated with
modules.
• Expose at least 1” (25mm) of threads for mounting the rack.
Step 4: Attach the rack enclosure to the mounting hardware using the mounting
keyholes.
Step 5: Check that the rack is level and plumb then tighten the mounting hardware for a
secure installation.
ERn2 - 8.9” / 226mm ERn4 - 14.2” / 360.7mm
5.5”
139.7mm
5.5”
139.7mm
4.5”
114.3mm
15.5”
393.7mm
ERn2 - 6.8” / 172.7mm ERn4 - 12” / 304.8mm
3.4”
86.4mm
ERn enclosure rear panel