21.01 5723611_01 11
— In the case of a pressure alarm, the refrigerant system is turned o by pressure
switches (see the wiring diagram).
ALARM
— If a safety allarm is triggered, the refrigerating system will be automatically
stopped. (see electrical diagram);
— In case of alarm from the refrigerating system security devices (leak detectors
or pressure switches), the mainboard returnes an alarm (see electrical diagram
for free contacts available);
WARNING: The machine can still be turned on (see the wiring diagram)
— The security system of the refrigerating system may be electrically connected to
the plant safety system (see electrical diagram);
— If the refrigerating system return an alarm from the safety devices (see electrical
diagram), an emergency procedure and security controls shall be activated;
— If present (it depends on the refrigerating system) special fans blow the air out
of the compressors boxes. These fans don’t work if the refrigerating system is
not powered from the incoming line.
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