Zodiac RE/U Manual De Instalación Y De Uso página 21

2.3 I Electrical connections
2.3.1 Voltage and protection
• The power supply to the heater must be provided through a protection and circuit breaking device (not
supplied) complying with the standards and regulations in force in the country where it is installed,
• The electrical connection lines must be fixed,
• Use the gland to pass the power cord into the appliance.
Electrical protection: via a dedicated 30 mA residual-current circuit breaker (circuit breaker or switch)
Acceptable variation in voltage: ± 10% (during operation)
2.3.2 Connections
• Incorrectly tightened terminals may cause the terminal unit to heat up and invalidate the
warranty.
• The appliance must be connected to an earth socket.
• Risk of electrical shock inside the appliance.
• Only a qualified and experienced technician is authorised to carry out cabling in the appliance.
• If the power cord is damaged (see § "2.3.3 Cable sizes"), it must be replaced by a qualified
technician.
• The power cord must be insulated against any cutting or hot elements that may damage or crush it,
• Check that the power cord is firmly attached to the connection terminal block.
IMPORTANT: We recommend stripping the power cord once inside the appliance.
• RE/U 15T, 18T, 21T and 24T heaters have three-phase wiring only.
• RE/U 12M and 15M are preconfigured for a single-phase supply when leaving the factory.
• To switch to a three-phase supply (only for RE/U 15M):
- Remove the bridging clamp.
Single-phase power supply:
220-240V / 1N~ / 50-60Hz + Earth
: Earth
N: Neutral
L: Phase
Three-phase power supply:
380-400V / 3P~ / 50-60Hz + Earth
: Shunt
: Bypassed terminals*
: Star point terminal
* Awaiting connection of a remote control.
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