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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 colored 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.
Step 13 Setting an indoor unit
address and installation option
Setting the indoor unit addresses manually
Steel core
Terminal M4
1 Review all the following elements in the installation:
PVC-insulated
• Installation site strength
green/yellow
wire
• Piping connection tightness to detect any gas
leakage
• Connection wiring
• Heat-resistant insulation of the piping
• Drainage
• Earthing wire connection
2 Manually set options in each room's the indoor unit by
referring to page 25~31.
3 Press the K3 button once or reset the outdoor unit.
NOTE
• The Display 1/2 indications are the same as in the
automatic address setting mode.
Setting Key and Display of the outdoor unit
• Key option of the outdoor unit
– K1: Function button
– K3: Reset button
Push
1
2
3
4
5
For more information of the Cool or Heat Try run test,
refer to page 31.
Key
K1
Pipe Checking Operation
Cool Mode Try run
Heat Mode Try run
Pump Down
Finish Key Operation
K3
Reset
21
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