Drill the Piping Wall Hole for Wall-Mounted SystemsUpdated 13 hours ago

Introduction

This article explains how to drill the piping wall hole for wall-mounted systems.

This article is for the following systems:

Follow these steps to drill the wall hole for piping:

With the mounting plate firmly affixed to the wall, temporarily mount the indoor unit onto the mounting plate in order to confirm the location of the wall hole in the next steps. Note: For information on installing the mounting plate for wall-mounted units, click here.
Use a pencil to lightly trace the bottom corner of the indoor unit, depending on which side exit the piping will go through.
Take the inside unit off of the plate and make a mark of where the hole will be, ensuring ample clearance between the tracing and bracket.
Drill a 2-½-3-⅛ inch (63.5-79 mm) wall hole at a slight downward angle using a core drill. Be careful to avoid wires, plumbing, and other sensitive materials. The bottom of the inside hole should be ¼ inch (6.35 mm) above the bottom of the outside hole.