Water Piping Insulation; Electrical Connections; Electrical Data - Ferroli OMNIA S 3.2 Installations- Und Bedienungsanleitung

OMNIA S 3.2
CAUTION
When the unit is not in use for a long period, make sure that the unit is always switched on. If you want to disconnect the power supply, the
water in the indoor unit must be drained to prevent damage to the pump and pipes from freezing temperatures.
• The unit might drain-off too much water through the pressure relief valve.
• Water quality should be complied with EN 98/83 EC Directives.
• Detailed water quality condition can be found in EN 98/83 EC Directives.

7.6.6 Water piping insulation

The complete water circuit including all piping, water piping must be insulated to prevent condensation during cooling operation and reduction of the heating and cool-
ing capacity as well as prevention of freezing of the outside water piping during winter. The insulation material should at least of B1 fire resistance rating and complies
with all applicable legislation. The thickness of the sealing materials must be at least 13 mm with thermal conductivity 0.039 W/mK in order to prevent freezing on the
outside water piping.
If the outdoor ambient temperature is higher than 30°C and the humidity is higher than RH 80%, then the thickness of the sealing materials should be at least 20 mm
in order to avoid condensation on the surface of the seal.

7.7 Electrical connections

7.7.1 Electrical data

Table. 5 - Electrical data
Indoor unit
Power absorbed
Maximum input current
Automatic switch
Power cable section
The customer must install the automatic circuit breaker.
Communication cable between indoor and out-
door unit
Cable section (shielded cable)
Example of basic connections for a single phase system
230V-1-50Hz
N N
WARNING
A main switch or other means of disconnection, having a contact separation in all poles, must be incorporated in
the fixed wiring in accordance with relevant local laws and regulations.
Switch off the power supply before making any connections.
Use only copper wires. Never squeeze bundled cables and make sure they do not come in contact with the piping
and sharp edges. Make sure no external pressure is applied to the terminal connections.
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
MOD.
"
A
A
mm
2
MOD.
mm
2
INDOOR
CB
INDOOR UNIT
UNIT
P
Q
E
Cod. 3541V941 - Rev. 04 - 05/2022
10
220-240V 50 Hz 220-240V 50 Hz
13
16
3x1.5
10
OUTDOOR UNIT
OUTDOOR UNIT
P
Q
E
16 16T
380-415 3+N+PE 50 Hz
13 10
16 16
3x1.5 5x1,5
16 16T
3x0.75
230V-1-50Hz
CB
N N
EN
97