Safety Devices - Frigomat T4S Serie Gebrauchsanweisung Und Wartungshandbuch

5. SAFETY DEVICES

Shearing-prevention safety device: Implemented by means of a safety circuit compliant
with the European directive, it intervenes when the door is opened and/or when the safety
grid on the hopper is lifted, temporarily switching the machine to STOP mode.
Beater motor overheating safety device: Implemented by means of a thermal relay; it
protects the machine beater motor operation from overloads, by signalling the relative
alarm message on the display, emitting an intermittent acoustic signal and enabling to
reset directly from the push button control panel.
Semi-hermetic compressor motor overheating safety device: Implemented by means
of an automatic reset thermal relay; it protects the machine compressor motor operation
from overloads, by signalling the relative alarm message on the display, emitting an
intermittent acoustic signal and enabling to reset directly from the push button control
panel.
Hermetic compressor motor overheating safety device: Implemented by means of an
automatic reset thermal-current sensor; it protects the machine compressor motor
operation from overloads. The protection device intervention determines the temporary
stop of the compressor motor only.
Refrigeration circuit over-pressure safety device: Implemented by means of the
approved automatic-reset safety pressure switch; it protects the integrity of the
refrigeration circuit from over-pressure. The protection device intervention determines the
temporary stop of the compressor motor only.
Protection against short circuit of auxiliary utilities: Implemented by fuses which
intervene on the logic unit or auxiliary power supply in the event of short-circuits.
SELV safety circuit: the push button control panel is powered at low voltage by means of
an approved dual-insulation safety transformer, protected against short circuits by fuses.
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