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 "3.4.2 Connection cables" and to
table 2.
• Table 5
Maximum absorptions of the unit.
External unit power
supply
External unit maximum
absorbed power
External unit maximum
absorbed current
Fuse or
magnetothermic (MFA)
Internal unit power
supply
Internal unit maximum
absorbed power (with
active electric heaters)
Internal unit maximum
absorbed current (with
active electric heaters)
Fuse or
magnetothermic (MFA)
3.4.1 - Access to electrical connections
• Before carrying out any intervention, make sure that power supply of the
external and internal units are disconnected.
• These operations are only allowed for specialized personnel.
EN - 26
U.E. SHERPA
Unit
S2 E 4
V ~ ph
220-240 ~ 1
Hz
50
kW
2,65
A
14
A
30
Unit
U.I. SHERPA TOWER SMALL S2 E
V ~ ph
220-240 ~ 1
Hz
50
kW
4,05
A
18
A
U.E. SHERPA
U.E. SHERPA
S2 E 6
S2 E 8
220-240 ~ 1
220-240 ~ 1
50
50
2,65
3,8
14
19
30
30
220-240 ~ 1
220-240 ~ 1
50
50
4,05
4,05
18
18
30 terminal block input line X3
10 terminal block input line X2
U.E. SHERPA
S2 E 10
220-240 ~ 1
50
3,8
19
30
220-240 ~ 1
50
4,05
18