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Pipe size
Pipe
inch(mm)
Ø1/4(6.35) to
Ø3/8(9.52)
Li uid
pipe
Ø1/2(12.70) to
Ø3/4(19.05)
Ø1/4(6.35)
Ø3/8(9.52)
Gas pipe
Ø1/2(12.70)
Ø5/8(15.88)
• 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 fre uently 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 fre uently.
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).
Insulation type (heating/cooling)
Standard [Less than 86°F(30°C), 85%]
9 t
13 t
13 t
19 t
High humidity [Over 86°F(30°C), 85%]
EPDM, NBR
9 t
13 t
19 t
25 t
5 Push the drain hose up to insulation when connecting
the drain hose to drain socket.
Steel ring of drain hose
Joint of drain hose
Drain hose
Wrap thermal sleeve hose
CAUTION
Check that the indoor unit is level with the ceiling by
using the leveller.
• Install air ventilation to drain condensation smoothly.
Air ventilation
Remarks
The internal
temperature
is higher than
248°F(120°C).
Fix with Cable-Tie
Drain hose
Reducer
A-A'
Ceiling
English
13
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