WARNING:
Removal of protections during machine operation is absolutely forbidden. They have been
developed to safeguard the operator's safety.
12.4 Alarms
"EE" Flashing : Data failure Alarm output ON; Other outputs unchanged
"P1" Flashing : Thermostat probe failure; Alarm output ON; Compressor output according to
parameters "Con" and "CoF"
"P2" Alternating with room temperature : Evaporator probe failure; Alarm output ON; Other outputs
unchanged, Time controlled end defrost
"HA" Alternating with room temperature : Maximum temperature alarm Alarm output ON; Other outputs
unchanged
"LA" Alternating with room temperature : Minimum temperature alarm Alarm output ON; Other outputs
unchanged
"dA" Alternating with room temperature : Open door alarm Alarm output ON; Outlets according to the
parameter "odc"
"PAL" Alternating with room temperature : Pressure switch alarm Alarm output ON; All outputs OFF
"noL" Fixed or lighting Comunication alarm keyboard – mainboard All the outlets OFF
All the signals different from the ones specified in this manual indicate a serious damage to the
electronic control panel.
LARM OUTPUT
When an alarm condition occurs, the alarm signal is displayed till this condition does not disappears. It is possible
to inhibit the alarm output deactivation by setting the "tbA" parameter at "n"; in this case the alarm output remains
active till the alarm condition lasts.
ALARM RECOVERY
Probe alarm "P1" starts 30 seconds after the fault in the related probe; it stops automatically 30 seconds after
the probe restarts normal operation. Check connections before replacing the probe.
The "HA" and "LA" temperature alarms automatically stop as soon as the thermostat temperature returns to
normal values, at defrost starting or at door opening.
The "dA" open door alarm stops automatically at the door closing.
The "PAL" pressure switch alarm can be restarted manually, by switching off the instrument or by putting it on
Standby.
13 HOW TO ORDER SPARE PARTS
When ordering spare parts make reference to the number written on the unit plate.
WARNING
Worn parts should be replaced only by qualified personnel or by the manufacturer.
14 HOW TO DISPOSE OF THE PACKING
We recommend installation of the machines far from the doors especially when the cold
room is expected to be opened many times a day.
Wooden, plastic, polystyrene packing shall be disposed of according to the regulations in
force in the country where the unit is used.
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