This document is the installation manual of split air conditioner AU-2663 AU-2755. It mainly introduces the installation of split air conditioner, mounting accessories, selection of installation position, how to use 1 to 1 pre-drilling layout paper, panel disassembly method, pipeline hole construction and other contents.
This manual describes the step‑by‑step installation procedure for the AU‑2663 and AU‑2755 pipe fittings, including required tools, safety precautions, and alignment guidelines. It also provides maintenance tips and dimensional data for proper fitting selection.
The document contains tables of pipe dimensions, thread sizes, and recommended torque values, as well as illustrated assembly sequences to ensure a reliable connection in industrial piping systems. This manual is written in Japanese.