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.
1Select an grounding electrode that complies with the specifications given in the illustration.
2Determine 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.
3Finish wrapping insulating tape around the rest of the pipes leading to the outdoor unit.
1
4 Install a green/yellow coloured grounding wire (Ø1.6 mm/ 16 ", section
2 mm2/10003 in2 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.
5Carefully check the installation, by measuring the grounding resistance with an ground resistance tester. If the resistance is above required level, drive the electrode deeper into the ground or increase the number of grounding electrodes.
6Connect the grounding wire to the electrical component box inside of the outdoor unit.
ENGLISH
50cm (2ft ) |
30cm(1ft)
