1.2.8 Installation of Drain Piping
(1) Keep piping as short as possible and slope it downwards at a gradient of at least 1/100 so that
air may not remain trapped inside the pipe.
(2) Keep pipe size equal to or greater than that of the connecting pipe.
(3) Install the drain piping as shown and take measures against condensation. Improperly rigged
piping could lead to leaks and eventually wet furniture and belongings.
Figure 3-1-37
1.2.9 Installing the Drain Pipes
(1) Insert the drain pipe to the drain outlet of the unit and then tighten the clamp securely with tape.
(2) Connect the extension drain pipe to the drain pipe and then tighten the clamp with tape.
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