Step 10 Checking The Earthing; Step 11 Performing Gas Leakage Test - Samsung AC100KXADEH Installation Manual

CAUTION
∙ Make sure that the connection parts are not exposed
to outside.
∙ Be sure to use insulation tape and a contraction tube
made of approved reinforced insulating materials that
have the same level of withstand voltage with the power
cable. (Comply with the local regulations on extensions.)
WARNING
∙ In case of extending the
electric wire, DO NOT use a
round-shaped pressing socket.
– Incomplete wire connections
can cause electric shock or a fire.

Step 10 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 coloured 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 11 Performing gas leakage test

Use nitrogen gas at a pressure range between 0.2 and
4.1 MPa when testing the gas leakage. If you apply
pressure at over 4.1 MPa, the refrigerant pipes may be
damaged.
Steel core
Terminal M4
PVC-insulated
green/yellow
wireTo
Outdoor unit
Gas
Liquid
Manifold gauge
High pressure side
Low pressure side
1
Nitrogen gas
Vacuum
2
pump
17
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