Checking Correct Grounding - Samsung EH052EAMC Installation Manual

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.
Select an grounding electrode that complies with the specifications given
1
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-mm2 or greater):
If the grounding wire is too short, connect an extension
◆
lead, in a mechanical way and wrapping it with insulat-
ing tape (do not bury theconnection)
◆ Secure the grounding wire in position with staples
◆ If the grounding electrode is installed in an area of
Note
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 num-
ber of grounding electrodes.
Connect the grounding wire to the electrical component box inside of
6
the outdoor unit.
DB98-27157A(1)_E.indd 17
Carbon
Steel
plastic
Terminal M4
core
PVC-insulated green/yel-
grounding
low wire, 2mm2x 3.5 m
screw
50cm
To
17
E-
2007-1-23 13:06:45