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gb use and maintenance manual blast chiller/shock freezer

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• CP: compartment sensor alarm.This alarm ca<strong>use</strong>s the following actions:- immediate termination of the selected operating cycle;- immediate interruption of defrosting (if in progress);- appliance lock-up;- beeper activation;- germicidal lamp switched off.• EP: evaporator sensor alarm.This alarm ca<strong>use</strong>s the following actions:- normal termination of any cycles in progress;- time-out termination of defrosting (if in progress);- automatic error reset.• IP: core temperature probe alarm.- <strong>blast</strong> chilling or <strong>shock</strong> freezing cycles in progress will terminate with a timer-controlled phase;- normal termination of defrosting (if in progress)- automatic error reset.INCORRECT BLAST CHILLING / SHOCK FREEZING PHASE END ALARMThis control checks whether a temperature-regulated (core temperature probe) <strong>blast</strong> chilling or <strong>shock</strong> freezing cycleterminates correctly; i.e.: the core temperature of the food reaches the cycle end set-point value (of the coretemperature probe) within the time determined by the parameter settings.This alarm is controlled when:- the appliance is in START status;- operating mode is <strong>blast</strong> chilling or <strong>shock</strong> freezing;- the cycle is temperature controlled (core temperature probe) rather than timer controlled.The alarm condition is indicated by the beeper <strong>and</strong> the message “tEr” on the display.Press the TIME button to display total cycle time.If the cycle terminates correctly (on reaching the programmed set-point), the message “END” is displayed <strong>and</strong>, aftermuting the beeper, core probe temperature <strong>and</strong> cycle duration time are displayed alternately.With the appliance in START status, pressing TIME will display elapsed time since cycle start (until the TIME buttonis released).POWER FAILURE ALARMThe control unit is equipped with a back-up battery that protects memorized data in the event of a power failure(max. time = 1 hour).If there is a power failure for less than 1 hour during the <strong>blast</strong> chilling / <strong>shock</strong> freezing cycle, the cycle re-starts fromthe point where it was interrupted. If the power failure exceeds 1 hour, the cycle re-starts from the beginning.If there is a power failure for more than 10 minutes, when power is re-connected a visual alarm is activated <strong>and</strong> themessage “PF” appears on the display.DOOR OPEN ALARMThis alarm is generated if:- the appliance is in START status;- the door digital input indicates that the door is open.If the door is opened during the <strong>blast</strong> chilling / <strong>shock</strong> freezing cycle, the cycle is immediately interrupted <strong>and</strong> if thecondition continues for longer than the preset time, the alarm “Od” is generated.If the door is opened during defrosting, the fans stop <strong>and</strong> the defrost duration count <strong>and</strong> the defrost interval countare interrupted (counts restart as soon as door is closed).If the door is opened when the appliance is in STOP status <strong>and</strong> the auxiliary relay is active (germicidal lamp ON),the relay is immediately deactivated (i.e. germicidal lamp switched off).To re-activate the lamp, close the door <strong>and</strong> press the UV-C LIGHT button.4.1.4 ALARM MUTEAcoustic alarms can be muted <strong>manual</strong>ly.The following alarms are accompanied by the beeper:- BLAST CHILLING CYCLE END- PRESSURE SWITCH ALARM;- SENSOR ALARM;- INCORRECT BLAST CHILLING / FREEZING CYCLE END.Manual muting is performed by pressing any button when the beeper is sounding.The beeper is muted automatically at the end of the preset activation time.20

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