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Installation Procedure
Standard
Pipe size
Pipe
(mm)
[Less than 30°C,
Ø6.35~Ø9.52
Liquid pipe
Ø12.7~Ø19.05
Ø6.35
Gas pipe
Ø9.52~Ø19.05
•
When installing insulation in places and
conditions below, use the same insulation that is
used for high humidity conditions.
<Geological condition>
–
High humidity places such as shoreline, hot
spring, near lake or river, and ridge (when the
part of the building is covered by earth and
sand.)
<Operation purpose condition>
–
Restaurant ceiling, sauna, swimming pool etc.
–
<Building construction condition>
–
The ceiling frequently exposed to moisture and
cooling is not covered.
–
e.g. The pipe installed at a corridor of a
dormitory and studio or near an exit that opens
and closes frequently.
–
The place where the pipe is installed is highly
humid due to the lack of ventilation system.
28 English
Insulation Type
(Heating/Cooling)
High humidity
Remarks
[over 30°C,
85%]
85%]
9 t
9 t
13 t
13 t
Internal
temperature is
13 t
19 t
higher than 120°C
19 t
25 t
Step 14 Checking the earthing
If the power distribution circuit does not have a earthing or
the earthing does not comply with specifications, an earthing
electrode must be installed. The corresponding accessories
are not supplied with the air conditioner.
1
Select an earthing electrode that complies with the
specifications given in the illustration.
2
Connect the flexible hose to the flexible hose port.
•
In damp hard soil rather than loose sandy or gravel
soil that has a higher earthing resistance.
•
Away from underground structures or facilities,
such as gas pipes, water pipes, telephone lines and
underground cables.
•
At least two metres away from a lightening
conductor earthing electrode and its cable.
NOTE
•
The earthing wire for the telephone line cannot be used
to ground the air conditioner.
Carbon plastic
To grounding screw
50 cm
30 cm
3
Finish wrapping insulating tape around the rest of the
pipes leading to the outdoor unit.
4
Install a green/yellow color earthing wire:
•
If the earthing wire is too short, connect an
extension lead in a mechanical way and wrap it with
insulating tape (do not bury the connection).
•
Secure the earthing wire in position with staples.
NOTE
•
If the earthing electrode is installed in an area with
heavy traffic, its wire must be connected securely.
5
Carefully check the installation by measuring the earthing
resistance with a earth resistance tester. If the resistance
is above the required level, drive the electrode deeper into
the ground or increase the number of earthing electrodes.
6
Connect the earthing wire to the electrical component
box inside of the outdoor unit.
Steel core
Terminal M4
PVC-insulated
green/yellow
wire
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