41
EN
Cod. 3542B230 - Rev. 00 - 02/2022
OMNIA S HYBRID H 3.2
All field wiring and components must be installed by a licensed electrician and must comply with relevant local laws
and regulations.
The field wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instruc-
tions given below. Be sure to use a dedicated power supply. Never use a power supply shared by another appliance.
Be sure to establish a ground. Do not ground the unit to a utility pipe, surge protector, or telephone ground. Incom-
plete grounding may cause electrical shocks.
Be sure to install a ground fault circuit interrupter (30 mA). Failure to do so may cause electrical shock.
Be sure to install the required fuses or circuit breakers.
WARNING
Cut off all power supply— i.e. unit power supply and backup heater and domestic hot water tank power supply (if
applicable) — before removing front panel. Parts inside the unit may be hot.
NOTE
The ground fault circuit interrupter must be a high- speed type breaker of 30 mA (<0.1 s).
This unit is equipped with an inverter. Installing a phase advancing capacitor not only will reduce the power factor improvement effect, but also may cause
abnormal heating of the capacitor due to high-frequency waves. Never install a phase advancing capacitor as it could lead to an accident.
WARNING
Before any operation which requires removing the cover, disconnect the indoor unit from the power supply through
the main switch.
HAZARD
Do not touch the electrical components in any case with the closed main switch! There is the risk of electric shock
with risk of injury or death!
The appliance must be connected to an effective earthing system, as provided for by the current safety regulations.
Have the efficiency and suitability of the earthing system checked by professionally qualified personnel, the manu-
facturer is not responsible for any damage caused by lack of earthing of the system.
The indoor unit is pre-wired and has a three-pole cable, with no plug, for the connection to the electricity power sup-
ply. The grid connections must be permanent and fitted with a double-pole switch with a minimum contact opening
of at least 3 mm, placing an automatic switch (refer to “Table 10 - Electrical data" on page 40) between the indoor
unit and the line.
Make sure to respect the polarities (LINE: brown wire / NEUTRAL: blue wire / GROUND: yellow-green wire) in the
connections to the electric line.
HAZARD
The unit’s supply cable MUST NOT BE REPLACED BY THE USER. If the cable gets damaged, turn the unit off and
have the cable replaced only by professionally qualified personnel. If replaced, only use a “HAR H05 VV-F” 3x0.75
mm
2
cable with a max external diameter of 11mm.
