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Installation
Installing the drain hose and drain pipe
1 Push the supplied drain hose as far as possible over the drain socket.
2 Tighten the metal clamp as shown in the picture.
3 Wrap the supplied large sealing pad over the metal clamp and drain
hose to insulate and fix it with clamps.
4 Insulate the complete drain piping inside the building (field supply).
If the drain hose cannot be sufficiently set on a slope, fit the hose with
drain raising piping (field supply).
5 Push the drain hose up to insulation when connecting the drain hose to
drain socket.
Metal clamp
Large seailng pad
Drain hose
Drain socket
Drain hose
Drain pipe
Be sure to bond the drain
hose and the main pipe.
PVC Tube Joint
+ VP25 (OD: 32 mm, ID: 25 mm)
Drain pipe
CAUTION
Check that the indoor unit is level with the ceiling by using the leveller.
• Install air ventilation to drain condensation smoothly.
• If it is necessary to increase the height of the drain pipe, install the drain
pipe straight within 300 mm from the drain hose port. If it is raised
higher than 550 mm, there may be water leaks.
Drain hose
Band joint
• Do not give the hose an upward gradient beyond the connection port.
This will cause water to flow backwards when the unit is stopped,
resulting in water leaks.
• Do not apply force to the piping on the unit side when connecting the
drain hose. The hose should not be allowed to hang loose from its
connection to the unit. Fasten the hose to a wall, frame or other support
as close to the unit as possible.
Support pieces
Air ventilation
Ceiling
20 mm or more
1/100 or more
550 mm
300 mm
or less
or less
Ceiling
Under gradient
Ceiling
1 to 1.5 m
1/100 or more
Ceiling
99
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