Overview Of All The Electrical Connections; Cable Section And Protection Rating - Fujitsu Waterstage WOYA060LFCA Installation And Operating Manual

Air to Water Heat Pump, split system

5 .1 .3 Overview of all the electrical connections

The wiring diagram for the hydraulic unit is shown in detail on
Cable 2 x 0,75 mm²
Interconnection between
the outdoor unit and the hydraulic unit :
Phase, Neutral, Earth, Communication bus
Interconnection between
cable 4 x 1,5 mm²
the outdoor unit and the hydraulic unit :
Phase, Neutral, Earth, Communication bus
figure 29 - Overall layout of the electrical connections for a simple installation (1 heating circuit)
5 .2

Cable section and protection rating

The cable sections are given for information purposes only and do not exempt the installer from checking that these
sections correspond to the requirements and comply with the prevailing standards.
• Power supply to outdoor unit:
Heat pump (HP)
Models
extensa + 5
Comfort 5
extensa + 6 Comfort 6
extensa + 8 Comfort 8
extensa + 10 Comfort 10
extensa + 13
extensa + 16
• Interconnection between the outdoor unit and the hydraulic unit: The hydraulic unit is powered by the outdoor
unit by means of a cable with 4 x 1,5 mm² (phase, neutral, earth, communication bus).
• Power supply to the electrical back-ups (Option):
The hydraulic unit contains two stages of electrical back-ups installed in a heat exchange tank.
Heat pump (HP)
Models
extensa + Comfort
5, 6, 8,10, 13 & 16 5, 6, 8 & 10
Rigid wires are always preferable for fixed installations.
" Ensure that the general electrical power supply has been cut off before starting any repair work.
Installation and operation manual "1764 - EN"
Outdoor sensor
Outdoor sensor
cable 2 x 0,75 mm²
Cable 4 x 1,5 mm²
General electrical supply
(See table below)
General electrical supply
(Phase, Neutral, Earth) (depending on heat pump power)
Maxi. power absorbed
2530 W
2875 W
4025 W
4255 W
5060 W
5750 W
Electrical back-ups
Power
2 x 3 kW
figure 44, page 72
OK OK
ESC ESC
DHW power supply
(Phase, Neutral, Earth)
Power supply to the electrical back-ups
(depending on heat pump power)
(See table below)
Electricity supply 230 V - 50 Hz
Cable connection
(phase, neutral, earth)
3 x 1,5 mm²
3 x 2,5 mm²
3 x 6 mm²
Power supply to the electrical back-ups
Cable connection
Nominal current
(phase, neutral, earth)
26,1 A
Wireless remote control (option)
Room control unit T78 (option)
Room thermostat T58 (option)
Wireless room thermostat (option)
Room control unit T75 (option)
Remote control (option)
Cable 3 x 0,5 mm²
cable 3 x 0,5 mm²
Room thermostat (option)
Room thermostat T55 (option)
cable 2 x 0,5 mm²
Cable 2 x 0,5 mm²
Electric
Electric panel
panel
Curve D circuit breaker size
16 A
20 A
32 A
Curve C circuit
breaker size
3 x 6 mm²
or
or
or
or
or
or
32 A
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