Overview Of All The Electrical Connections; Cable Section And Protection Rating - Waterstage WO A060LDC Series Installation And Operating Manual

Air to Water Heat Pump (Split integrated DHW type)

2 .11 .3 Overview of all the electrical connections

The wiring diagram for the hydraulic unit is shown in detail on
Interconnection between Interconnection between
the outdoor unit and the hydraulic unit : the outdoor unit and the hydraulic unit :
Phase, Neutral, Earth, Communication bus Phase, Neutral, Earth, Communication bus
figure 31 - Overall layout of the electrical connections for a simple installation (1 heating circuit)

2 .11 .4 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)
Model
extensa duo + 5 Comfort 5
extensa duo + 6 Comfort 6
extensa duo + 8 Comfort 8
extensa duo + 10 Comfort 10
• 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).
• Electricity supply DHW: The DHW section is powered directly via a 3 x 1,5 mm² cable (phase, neutral, earth).
Protection by circuit breaker (16 A, curve C).
• 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)
Model
extensa duo + Comfort
5, 6, 8 & 10 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 operating manual "1585 - EN"
Outdoor sensor Outdoor sensor
Cable 2 x 0,75 mm² Cable 2 x 0,75 mm²
Cable 4 x 1,5 mm² Cable 4 x 1,5 mm²
General electrical supply (Phase, Neutral, Earth) General electrical supply (Phase, Neutral, Earth)
(depending on heat pump power) (depending on heat pump power)
Maxi. power absorbed
2530 W
2875 W
4025 W
4255 W
:
Electrical back-ups
Power Nominal current
2 x 3 kW 26,1 A
figure 48, page 61
Room control unit T78 (option) Room control unit (option)
Room thermostat T58 (option) Room thermostat (option)
Room control unit T75 (option) Room control unit (option)
Room thermostat T55 (option) Room thermostat (option)
Room thermostat T37 (option)
DHW power supply DHW power supply
(Phase, Neutral, Earth) (Phase, Neutral, Earth)
Power supply to the electrical back-ups Power supply to the electrical back-ups
Cable 3 x 1,5 mm² Cable 3 x 1,5 mm²
(Phase, Neutral, Earth) Cable 3 x 6 mm² (Phase, Neutral, Earth) Cable 3 x 6 mm²
Electric Electric
panel panel
Electricity supply 230 V - 50 Hz
Cable connection
(phase, neutral, earth)
3 x 1,5 mm²
3 x 2.5 mm²
Power supply to the electrical back-ups
Cable connection
(phase, neutral, earth)
3 x 6 mm²
or or
or or
Cable 3 x 0,5 mm² Cable 3 x 0,5 mm²
or or
Cable 2 x 0,5 mm² Cable 2 x 0,5 mm²
or
Cable 3 x 0,5 mm²
Curve D circuit breaker size
16 A
20 A
Curve C circuit breaker size
32 A
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