Emerson AC4 Manuale Utente

The Liebert AC4 may be flush mounted according to company practices—either with screws through 

the sides of the panel into wall supports or with hanging hardware that attaches to the back of the 

panel. After determining how and where to place the unit, check to ensure that you have all the 

hardware required to install the panel in the wall. Obtain the needed tools.

• Saw
• Electric drill
• Screwdriver
• Marker to denote layout of the hole to accommodate the Liebert AC4
• Trim ring and associated hardware
• Mounting hardware

1. Mark the wall for the cutout to accommodate the panel, using the back of the unit as a template.
2. Drill a pilot hole for the saw blade, if required.
3. Use the saw to cut out the marked section of the wall (if not new construction).
4. Rest the Liebert AC4 in the wall and mark where mounting screws will be inserted into the wall 

studs or other support member.

5. Remove the panel and drill the holes for the mounting screws or wall anchors. Clean up the 

debris.

6. Reverse the slide direction of the rectangular access doors on the top and bottom of the Liebert 

AC4. Leaving the doors as shipped from the factory prevents them from being opened when the 

panel is flush mounted in a wall.

7. Attach any field-supplied mounting hardware.
8. Reinsert the assembly into the wall.
9. Insert and tighten the screws or wall anchors.

NOTE
Removing the conduit knockouts before mounting the Liebert AC4 on the wall will ease 

Risk of electric shock. Can cause property damage, injury and death.
Check building plans and other relevant documents to determine whether mounting the 

Liebert AC4 at the selected location might cause cutting or otherwise damaging electrical or 

communication wiring or pipes.