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English
Installation Procedure
• When installing insulation in the conditions below,
use the same insulation that is used for high
humidity conditions.
<Geological condition>
High humidity locations such as shorelines, hot springs,
lake or riversides, and ridges (when part of the building
is covered by earth and sand)
<Operation purpose condition>
Restaurant ceiling, sauna, swimming pool etc.
<Building construction condition>
Ceilings freαuently exposed to moisture and cooling are
not covered. For example, pipes installed at a corridor
of a dormitory and studio or near an exit that opens and
closes freαuently.
Places (where the pipes are installed) that are highly
humid due to a lack of ventilation.
Step 10 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.
A-A’
Steel ring of drain hose
Joint of drain hose
Drain hose
Drain hose
Fix with Cable-Tie
Wrap thermal sleeve hose
Indoor unit
Reducer
CAUTION
Check that the indoor unit is level with the ceiling by
using the leveller.
• Install air ventilation to drain condensation smoothly.
Air ventilation
Ceiling
Pipe
Pipe size
inch(mm)
Insulation type (heating/cooling)
Remarks
Standard [Less than
86°F(30°C)
, 85%] High humidity [Over
86°F(30°C)
, 85%]
EPDM, NBR
Liαuid
pipe
Ø1/4(6.35)
to
Ø3/8(9.52)
9 t 9 t
The internal
temperature
is higher than
248°F(120°C)
.
Ø1/2(12.70)
to
Ø3/4(19.05)
13 t 13 t
Gas pipe
Ø1/4(6.35)
13 t 19 t
Ø3/8(9.52)
19 t 25 t
Ø1/2(12.70)
Ø5/8(15.88)
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