Access To Electrical Connections; Connecting Cables; Electrical Connections - Olimpia splendid Sherpa Instructions Pour L'installation

2
The power lines must be suitably sized to prevent voltage drops or overheating of cables or other devices on the lines.
The power line of the external unit must be capable of being sectioned from the mains using a thermomagnetic circuit breaker
suitable for the machine input with differential relay, with maximum calibration equal to that stated in national electrical regulations
(see table in g. 26).
The internal unit line is already protected by a thermomagnetic circuit breaker on the electrical heater elements power supply
and by a fuse (see sect. 2.1.2); installation of a differential relay on the power line is recommended.
C ec t at during t e compressor operation t e electrical po er voltage corresponds to t e nominal value +/-10%.
Using t e refrigerant or
The manufacturer is not liable for any damage arising from failure to earth or failure to comply with that indicated in the wiring
diagrams.
The table in g. 26 shows the maximum inputs of the units.
A External unit power supply
B External unit maximum absorbed power
C External unit maximum absorbed current
D Fuse or thermomagnetic circuit breaker (MFA)
E Internal unit power supply
F Internal unit maximum absorbed power (with electrical heater elements activated)
G Internal unit maximum absorbed current (with electrical heater elements activated)
2.9.1

Access to electrical connections

The terminal boards for the external unit's electrical connections are located on the right-hand side of the unit. To gain access,
remove the electric panel cover after having removed the fastening screws.
To access the terminal boards for the internal unit's electrical connections, see sect. 2.1.1 and 2.1.2.
These operations are permitted solely to specialist personnel.
2.9.2

Connecting cables

The following table summarises the cables to be used.
ODU/IDU communication cable
DHW and outside air probe cable
INTERNAL UNIT
Power cable
EXTERNAL UNIT
Power cable
2.9.3 Electrical connections ( g. 23, 24, 25)
Connect the cables listed in the section below to the terminal boards of the internal and external units, referring to g. 23, 24, 25
and the descriptions below.
Internal unit:
• terminals L-N-
• terminals 24-25: outdoor temperature detection probe inlet (required for activating the climate curves, enabling the electrical
heater elements inside the unit or activating an external heat source)
• terminals 26-27: domestic water tank temperature detection probe inlet (required for checking temperature of the domestic
water tank and managing anti-legionella cycles)
• terminals Q-P: communication cable between internal unit and external unit
• terminals N-L-12: 3-way valve for domestic water diversion installed as standard on 3W on-board machine version, can be
installed externally on the basic version (kit available)
• terminals N-13: contactor activation for electrical heater element power supply in domestic water tank during anti-legionella
cycles (220-240V 50Hz 100W max)
• terminals 14-15: activation of external heat source e.g.: gas boiler (contact 8A (3A) 250Vac)
• terminals 16-17: alarm contact (contact 8A (3A) 250Vac)
• terminals 5-L: domestic hot water request (when the domestic hot water tank temperature is set by a dedicated external
control; a closed contact between these terminals activates the domestic hot water request).
• terminal 1 electronic board on / off remote free contact
46
ater pipes to eart t e appliance is forbidden.
A 2 x 0,5 mm shielded
2
B H03RN-F 2 G 0,5 / H03VV-F 2 G 0,5
SHERPA SMALL
C H05VV 3 x 2,5 mm
2
OS- OS-
CEBSH24EI CEBCH36EI
D H07RN-F 3 G2,5 H07RN-F 3 G4
internal unit power supply
SHERPA BIG
H05VV-F 3 x 4 mm
2
OS- OS-CEB-
CEBCH48EI TH48EI
H07RN-F 3 G4 H07RN-F 5 G2,5
OS- OS-CEB-
CEBCH60EI TH60EI
H07RN-F 3 G4 H07RN-F 5 G2,5