Table of Contents
Advertisement
Tightening power terminal
Connect the cables to the terminal board using the compressed ring terminal.
Use rated cables only.
Connect the cables with driver and wrench that can apply the rated torque to the screws.
Make sure that appropriate tightening torque is applied for cable connection. If the terminal is loose, arc heat may
occur and cause fire and if the terminal is connected too firmly, terminal may get damaged.
Screw
12.0~18.0 kgf · cm
M4
(0.87~1.3 ft · lb)
Method for connecting wires
Checking correct earthing
If the power distribution circuit does not have an earth or the earth 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 opposite.
2.
Determine a suitable location for the earthing electrode :
◆ 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 meters away from a lightening conductor earthing
electrode and its cable.
The earthing wire for the telephone line cannot be used to earth the
air conditioner.
3.
Dig a hole of the size indicated in the illustration opposite, drive the
earthing electrode into position and cover the top of the electrode with
the excavated soil.
4.
Install a green/yellow insulated earthing wire (Φ1.6 mm(0.06 inch),
section 2 mm
2
(0.003 inch
2
) or greater) :
◆ If the earthing wire is too short, connect an extension lead, soldering
the connection and wrapping it with insulating tape (Do not bury the
soldered connection.)
◆ Secure the earthing wire in position with staples. If the earthing
electrode is installed in an area of heavy traffic, its wire must be
connected securely.j
5.
Carefully check the installation, by measuring the earthing resistance
with an earthing resistance tester. If the resistance is above the required
level(Example:100Ω), drive the earthing electrode deeper into the ground
or increase the number of earthing electrodes.
6.
Connect the earthing wire to the earthing screw on the air conditioner.
14
Tighten Torque
1.2~1.8 N · m
Position
L1, L2, F1, F2
Carbon
plastic
Steel core
To earthing
PVC-insulated green
/yellow wire, 2mm² x
3.5m(11.5ft)
50 cm(1.6 ft)
screw
Hide quick links:
Advertisement
Table of Contents
