Ferroli OMNIA ST 3.2 Manual De Instalación, Uso Y Mantenimiento página 98

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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.
DANGER
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 prewired and provided with a three-pole cable or five-pole cable , without a plug, for connection to
the electric line. The connections to the grid must be made with a permanent connection and equipped with a switch
(2 poles or 4 poles) whose contacts have a minimum opening of at least 3 mm, interposing an automatic circuit bre-
aker (refer to "Table. 5 - Electrical data" on page 97) between the indoor unit and the line.
For single-phase units (mod. 10 and 16)
Make sure to respect the polarities (LINE: brown wire / NEUTRAL: blue wire / GROUND: yellow-green wire) in the
connections to the electric line.
For three-phase units (mod. 16T)
Make sure to respect the polarities (L1-L2-L3 - N - PE) in the connections to the electric line.
DANGER
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. In case of replacement, only use cable "HAR H05
VV-F" 3x0.1.5 mm
(mod. 10 and 16) or 5x1,5 mm
2
98
EN
(mod. 16T ) with a max external diameter of 11mm.
2
Cod. 3541V991 - Rev. 00 - 09/2021
OMNIA ST 3.2

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