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Failure to use a 2-pole circuit breaker leaves the compressor susceptible to short circuit
in the region of the hermetic compressor terminal, which may cause the hermetic pins to
be ejected causing the refrigerant and oil to leak.
Never operate motor-compressor without grounding.
Application of a system without grounding may expose the technician to risk of electric
shock.
In the case of two-phase installations, it is mandatory to use a 2-pole circuit breaker, because in case of a short
circuit both phases of power supply are protected. The system must be grounded.
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WARNING
