3 | Specific installer safety instructions
Installer reference guide
20
RZAG71~140N
Sky Air Alpha-series
4P695307-1A – 2024.02
Electrical installation (see
"7.7Connecting the electrical wiring"[
4
58]
)
WARNING
Electrical wiring connection method MUST be in accordance with the instructions
from:
▪ This manual. See "7.7Connecting the electrical wiring"[458].
▪ The wiring diagram of the outdoor unit, which is delivered with the unit, located
on the inside of the top plate. For a translation of its legend, see "13.4 Wiring
diagram: Outdoor unit"[480].
CAUTION
Do NOT push or place redundant cable length into the unit.
WARNING
▪ If the power supply has a missing or wrong N-phase, equipment might break
down.
▪ Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber,
or telephone earth. Incomplete earthing may cause electrical shock.
▪ Install the required fuses or circuit breakers.
▪ Secure the electrical wiring with cable ties so that the cables do NOT come in
contact with sharp edges or piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, stranded conductor wires, extension cords, or
connections from a star system. They can cause overheating, electrical shock or
fire.
▪ Do NOT install a phase advancing capacitor, because this unit is equipped with an
inverter. A phase advancing capacitor will reduce performance and may cause
accidents.
WARNING
▪ All wiring MUST be performed by an authorised electrician and MUST comply
with the applicable legislation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical construction MUST comply
with the applicable legislation.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
WARNING
ALWAYS use multicore cable for power supply cables.
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