Daikin Altherma 3 H HT - Page 18

3 | Specific installer safety instructions
Installer reference guide
18
EPRA14~18D + ETVZ16S18+23E
Daikin Altherma 3 H HT F
4P644739-1A – 2022.03
WARNING
Ethylene glycol is toxic.
Electrical installation (see
"9Electrical installation"[
4
89]
)
DANGER: RISK OF ELECTROCUTION
WARNING
Electrical wiring connection method MUST be in accordance with the instructions
from:
▪ This manual. See "9Electrical installation"[489].
▪ The wiring diagram of the outdoor unit, which is delivered with the unit, located
at the inside of the service cover. For a translation of its legend, see "16.4Wiring
diagram: Outdoor unit"[4256].
▪ The wiring diagram of the indoor unit, which is delivered with the unit, located on
the inside of the indoor unit switch box cover. For a translation of its legend, see
"16.5Wiring diagram: Indoor unit"[4261].
WARNING
ALWAYS use multicore cable for power supply cables.
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 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
Rotating fan. Before powering ON or servicing the outdoor unit, make sure that the
discharge grille covers the fan as protection against a rotating fan. See:
▪ "7.3.6To install the discharge grille"[467]
▪ "7.3.7To remove the discharge grille, and put the grille in safety position"[469]