Olimpia splendid Sherpa AQUADUE S3 E, Instructions For Installation, Use And Maintenance Manual

Page: 80 / 316

EN - 22
ENGLISH
• The external and the internal units need to be connected with each other through
a communication line.
• Envisage a path of the communication cable separate and far from the power
supply lines.
• Use a screened and specific cable for data lines.
• Use a single cable from the internal unit to the external unit, without intermediate
junctions.
• Connect the screen of the communication cable to the ground of the internal unit.
• Firmly secure the cables to the respective clamps
• Check that the cables are not subject to excessive tractions.
• Firmly secure the cables to the respective cable ties
The power supply lines must be dimensioned adequately to avoid voltage drops
or overheating of cables or other devices located on the lines themselves.
Check that in each operating condition of the heat pump, power supply voltage
corresponds to the nominal value +/-10%.
The manufacturer is not responsible for possible damages caused by the absence of
ground connection or by a failure to respect what is indicated in the wiring diagrams.
The use of the refrigerant gas and water pipes for ground connection of the
appliance is prohibited.
On the power supply line of the appliance there must be an adequate omnipolar
disconnection device that complies with the national installation regulations. It is,
however, necessary to check that the electrical power supply is equipped with efficient
earthing and with adequate protections against overloading and/or short circuits.
For the electrical connections, please refer to fig. 19, 20, 21, to paragraph “3.6.2 Connection cables” and to
table 5.
•
Table 5
Maximum absorptions of the unit.
Internal unit
power supply
Internal unit
maximum ab-
sorbed power
Internal unit
maximum ab-
sorbed current
Fuse or magnetothermic (MFA)
V ~ ph
Hz
kW A A
Internal unit
SHERPA S3 E
SMALL
220-240 ~ 1
50
4.05* 18*
30 terminal block input line X3
10 terminal block input line X2
SHERPA S3 E
BIG
220-240 ~ 1
50
7.05* 31*
30 terminal block input line X3
10 terminal block input line X2
* With active electric heaters.