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• Open the external covering panels (if present)
• Make sure that the switch is at “OFF” before opening the electric
control board for the connection of the unit to the power supply.
• Use the plates/holes to pass the main electric power supply
cable and the cables of the other external connections under the
responsibility of the installer.
• It is prohibited to access positions not specically envisioned in this
manual with electric cables.
• Avoid direct contact with non-insulated copper piping and with the
compressor.
• Identify the clamps for the electric connection and always refer
exclusively to the wiring diagram supplied with the unit.
• Remove any protections from the cable xing points..
• For the functional connection of the unit, take the power supply
cable to the electric control board inside the unit and connect it to
clamps. L1-L2-L3, N (if present), and PE respecting the polarities L1-
L2-L3 and N as phases, and PE as grounding
• Ensure that all protections removed for the electric connection have
been restored before powering the unit electrically.
• Close all the opened panels.
• Turn the switch at “ON” position.
• Position the system master switch (outside the appliance) at “ON”.
For auxiliary connection please refer to the wiring diagrams supplied
with the unit,
ELECTRIC POWER CONNECTION TO THE ELECTRICAL MAINS
ELECTRIC POWER CONNECTION TO THE ELECTRICAL MAINS
Recommended hole
for electric cables
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