81818181
Avertissements Installation
8181
EN
Warnings Installation
• The heat pump units are designed to operate with the fol-
lowing earthing systems: TT and TN. The IT earthing sys-
tem is not suitable for these units (use a separating trans-
former). Single-phase supplies with no neutral (between
phases) are strictly prohibited. For three-phase units, the
neutral must also be distributed (TT or TN).
• The contract agreed with the energy provider must be suf-
cient to cover not only the unit output, but also the total
output of all units likely to be operating at a given time. If
the output is insucient, check the contractual output value
with the energy provider.
• Contact the power network operator for the cable and har-
monic current specications, etc.
• Never use a socket to supply power.
• Use a dedicated supply circuit. Do not share the supply
with another unit.
• Use an independent power supply line protected by an all-
pole circuit breaker with contact opening greater than 3
mm to supply the unit.
• Make sure the circuit breaker is positioned in a location
where it cannot be started or stopped accidentally by users
(adjacent room, etc.). If the electrical panel is located out-
doors, close and lock it so that it cannot be easily accessed.
• Except for emergencies, never switch o the main circuit
breaker or the inside unit circuit breaker during opera-
tion. This could result in compressor faults or water leaks.
Switch o the inside unit using any type of remote control
or an external input device (switch) only, then switch o the
circuit breaker.
• Never touch the electrical components immediately after
switching o the power supply. This can result in electric
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