4-4-9. Checking Correct Grounding
If the power distribution circuit does not have an earth
or the ground does not comply with specifications, an
grounding electrode must be installed.
The corresponding accessories are NOT supplied with
the air conditioner.
1. Select an grounding electrode that complies
with the specifications given in the illustration.
2. Determine a suitable location for the grounding
electrode:
• In damp hard soil rather than loose sandy or
gravel soil that has a higher grounding
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 grounding electrode and its cable
Note : The grounding wire for the telephone line cannot
be used to ground the air conditioner.
3. Finish wrapping insulating tape around the rest
of the pipes leading to the outdoor unit.
4. Install a green/yellow coloured grounding wire
(Ø1.6 mm, section 2 mm
2
or greater):
• If the grounding wire is too short, connect an
extension lead, in a mechanical way and
wrapping it with insulating tape (do not bury
the connection)
• Secure the grounding wire in position with
staples
Note : If the grounding electrode is installed in an area
of heavy traffic, its wire must be connected
securely.
5. Carefully check the installation, by measuring
the grounding resistance with a ground
resistance tester. If the resistance is above
required level, drive the electrode deeper into
the ground or increase the number of grounding
electrodes.
6. Connect the grounding wire to the electrical
component box inside of the outdoor unit.
4-25
Samsung Electronics
Installation
Terminal M4
PVC-insulated green/
yellow wire, 2mm
2
x 3.5 m
To
grounding
screw
Steel
core
Carbon
plastic
30cm
50cm
Duct-ADH1800E-2-2 6/27/00 10:37 AM Page 4-25
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