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Installation Procedure
Step 11 Connecting the drain hose to
the outdoor unit
When using the air conditioner in the heating mode, ice
may accumulate . During de-icing (defrost operation),
the condensed water must be drained off safely.
Consequently, you must install a drain hose on the
outdoor unit, following the instructions below.
1 Make space more than 80 mm between the bottom of
the outdoor unit and the ground for installation of the
drain hose, as shown in figure.
2 Insert the drain plug into the hole on the underside of
the outdoor unit.
3 Connect the drain hose to the drain plug.
4 Ensure that the drained water runs off correctly and
safely.
5 Be sure to plug the rest of drain holes not connected
with drain plugs using drain caps.
• When installing the product, make sure that the
rack is not placed under the drain hole.
• If the product is installed in a region of heavy
snow, allow enough separation distance between
the product and the ground.
26
English
80 mm
13 mm
Drain cap (3EA)
Drain plug (1EA)
Step 12 Insulating the refrigerant
pipes
Once you have checked that there are no leaks in the
system, you can insulate the piping and hose.
1 To avoid condensation problems, place an insulator
around each refrigerant pipe.
No gap
NBR
NOTE
• When insulate the pipe, be sure to overlap the
insulation.
• The insulation has to be produced in full compliance
of European regulation reg. EEC / EU 2037/ 2000
that requires the use of sheaths insulation form
without using CFC and HCFC gases for health and the
environment.
CAUTION
• When insulating the pipe, use non-slit insulator.
2 Select the insulation of the refrigerant pipe.
• Insulate the gas side and liquid side pipe referring
to the thickness according to the pipe size.
• Less than Indoor temperature of 30°C and
humidity of 85% is the standard condition. If
installing in a high humidity condition, use one
grade thicker insulator by referring to the table
below. If installing in an unfavourable conditions,
use thicker one.
• Insulator's heat-resistance temperature should be
more than 120°C.
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