Press the CAL button. The word LOAD will appear.The difference between the two thresholds must be at least 0.8V. Therefore you cannot set VLO = 12 and VHI = 12.7, for example. The minimum must be at least 12.8V. If everything goes as planned, the word END will appear. Calibration is now complete. Otherwise the word ERROR will appear. To begin calibration again, press the CAL button.WARNING: During calibration, the system (if operating) will stop. To restart the unit, press the ON/OFF buttonwhen calibration has ended.VOLTAGE THRESHOLDS – SUGGESTED VALUESPower supplyVcut-out (VLO)Vcut-in (VHI) 12 V12 V13 V 24 V24 V26 V The factory settings use the following voltages:Power supplyVcut-out (VLO)Vcut-in (VHI) 12 V12 V13 V 24 V24 V25 V Alarms These settings mean that the refrigerating unit will be started when the Vbattery (undercharged or not) isGREATER than 13V or 25V respectively for 12v or 24V power supply. Once the unit starts, operation is allowed until the Vbattery is GREATER or EQUAL to 12V or 24V, depending on the type of power supply. Under these values, the electronics blocks for boats the power supply and switches off the system, thus saving battery power. The connection and disconnection is delayed by 100 seconds. An interesting and exclusive feature of the digital box is its ability to determine and alert the user to the type ofprotection used by means of LEDs on the box and control panel for boat. One or more alarms block the system, switch off the ‘RUN’ LED (on the remote panel) and switch on the LED ALARM intermittently. The number of flashes tells us the type of security that has been activated. This table explains how the alarms are coded:

Type of protection:

Type of intervention:Signalled by:Reset Low/high voltageBlocks compressors,pump and ventilators‘POWER’ LED on the remote panelflashesAutomatic Low pressure (LP)Blocks compressors,pump and ventilators‘ALARM’ LED on the remote panelflashes twice. LP LED on the electric box on.Reset withON/OFF button High pressure (HP)Blocks compressors,pump and ventilators‘ALARM’ LED on the remote panelflashes three times. HP LED on the electric box on.Reset withON/OFF button Remote Panel There are two kinds of remote panel: With one ON/OFF button The control chip disables terminals TE2 and EV2.This type of panel must be used for one-plate or two-plate configuration, but with the second inserted parallel to the first as described in paragraph 3.2-a. With two ON/OFF buttons Used for independent two-plate configurations with one or two solenoid valves as described in paragraph 3.2-b-c. 7