12
CAUTION
Be sure to insulate any field piping all the way to the piping connection inside the unit. Any exposed piping
may cause condensate or burns if touched.
6. DRAIN PIPING WORK
(1) Install the drain piping. (Refer to Fig. 16)
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The drain pipe should be short with a downward slope and should prevent air pockets from forming.
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Watch out for the points in the figure 16 when performing drain work.
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When extending the drain hose, use a commercially available drain extension hose, and be sure to
insulate the extended section of the drain hose which is indoors.
(Refer to Fig. 17)
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Make sure the diameter of the extension drain piping is the same as the indoor unit drain hose (hard vinyl
chloride, I.D. 9/16”) or bigger.
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In case of converging multiple drain pipes, install them referring to Fig. 18.
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Select diameter of drain piping which adapts to the capacity of the unit connected.