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Electrical connections
Before performing any maintenance, make sure that all power supplies have been
cut off .
Electrical installation must be performed in accordance with current regulations.
The electrical diagram for the hydraulic unit is shown on fi g. 58, page 78.
fi g. 39 - Overall layout of electrical connections for a simple installation (1 heating circuit)
Outside sensor
Cable 2 x 0.75 mm²
Interconnection between
outdoor unit and hydraulic unit
Phase, Neutral, Earth, Communication bus)
Cable 4 G 1.5 mm²
Wireless remote control (option)
Wireless room thermostat (option)
Remote control (option)
Cable 2 x 0.5 mm²
Room thermostat (option)
Cable 2 x 0.5 mm²
Electrical backup power supply
(see table below)
DHW power supply
(phase, neutral, earth) Cable 3 G 1.5 mm²
General electrical supply
(phase, neutral, earth) (see table below)
Electrical
Board
or
or
or
Waterstage Split Comfort DHW Serie / INSTALLATION / 2125 - EN
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