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DX 40

Service Manual

Cod. 71503041

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Summary of Contents for DX 40

Page 1: ...DX 40 Service Manual Cod 71503041...

Page 2: ...allation practice OPERATING INSTRUCTIONS Start up Operational checks OPERATING PRINCIPLES How it works Freezing cycle Harvest cycle Control sequence Component description ADJUSTMENT PROCEDURES Adjustm...

Page 3: ...MIN 10 C 5 C 1 bar 10 ice making capacity 40 35 30 25 20 15 10 Kg 38 32 5 27 21 15 10 32 38 10 21 40 35 30 25 20 15 10 Kg 38 32 5 27 21 15 10 AIR COOLED MODELS WATER TEMPERATURE AMBIENT TEMPERATURE I...

Page 4: ...hine specifications Cubes per harvest 24 medium A 15 C water temperature Electric power cons Kwh per 24 Hr Cond unit Finish Comp HP Stainless stell 3 8 15 Kg Dimensions HEIGHT 1720 mm WIDTH 380 mm DEP...

Page 5: ...es freely 7 Check that the compressor fits snugly onto all its mounting pads 8 Use clean damp cloth to wipe the surfaces inside the storage bin and the outside of the cabinet GENERAL INFORMATION AND I...

Page 6: ...e and the unit If water contains a high level of impurities it is advisable to consider the use of an appropriate water filter or conditioner WATER DRAIN The recommended drain tube is a plastic or fle...

Page 7: ...ency serving him G INSTALLATION PRACTICE 1 Hand shut off valve 2 Water filter 3 Water supply line flexible hose 4 3 4 male fitting 5 Vented drain 6 Open trapped vented drain 7 Drain fitting 8 Main swi...

Page 8: ...pressure below the Minimum value of 1 bar 14 psig 3 Any clogging situation in the water circuit like the inlet water strainer and or the flow control D At completion of the water filling phase 5minute...

Page 9: ...ontrolthetem perature of its probe progressively rises to reach 4 5 C 40 F and at this point the ice machine restarts to initiate a new freezing cycle with the simultaneous extinguishing of the 3rd RE...

Page 10: ...st to avoid to overfill the ice bucket when left in the dispensing compartment The yellow LED located beside the green one is lighted ON while the auger motor is energized NOTE The CUT IN RANGE OF THE...

Page 11: ...reezes into ice the rest of it cascades by gravity into the sump assembly below for recirculation FREEZING CYCLE The hot gas refrigerant discharged out from the compressor Fig B reaches the condenser...

Page 12: ...Page 11...

Page 13: ...5 to 45 minutes the defrost cycle starts DIP SWITCH 1 2 3 4 5 6 7 8 9 10 Air Cooled ON OFF OFF OFF ON OFF ON ON ON OFF Water cooled ON OFF OFF ON OFF OFF ON ON ON OFF TAB A DIP SWITCH KEYS FACTORY SET...

Page 14: ...s ON OFF Evaporator Sensor Ice Level Sensor HARVEST Water Filling Phase Electrical components Loads ON OFF Compressor Water Pump Fan Motor Air cooled only Hot Gas Valve Water Inlet Valve Water drain v...

Page 15: ...OMPONENTS DESCRIPTION A EVAPORATOR TEMPERATURE SENSOR The evaporator temperature sensor probe locatedincontactwiththeevaporatorserpentine detects the dropping of the evaporator tempera ture during the...

Page 16: ...S KEY MUST BE SET IN OFF POSITION ATTENTION The check up of the P C BOARD output must be performed in averyshorttimeinordertoavoidfrequent start and stop every few seconds of the electricalcomponentsw...

Page 17: ...il 8 9 DELTA T C ON ON 1 OFF ON 1 5 ON OFF 2 OFF OFF 2 5 TAB D ICE LEVEL SENSOR CONTROL TEMPERATURE RANGE ACCORDING TO THE DIP SWITCH SETTING COMBINATIONS Locatedonthehotgasline thisvalveisenergized t...

Page 18: ...on the front of the P C Board 2 Take note of the combination of the DIP SWITCH KEYS 3 4 5 6 and 7 and check the corrisponding length of freezing cycle 3rd phase as shown on Table C 3 Change the same D...

Page 19: ...OTOR C COMPRESSOR MOTOR D PUMP E WATER INPUT EL VALVE F DEFROST EL VALVE G AUGER GEAR MOTOR H BIN TEMP PROBE I EVAPORATOR PROBE L ICE PHOTOSWITCHES M ELECTRONIC CARD O FAN PRESSURE SWITCH P ANTI STRIP...

Page 20: ...MOTOR C COMPRESSOR MOTOR D PUMP E WATER INPUT EL VALVE F DEFROST EL VALVE G AUGER GEAR MOTOR H BIN TEMP PROBE I EVAPORATOR PROBE L ICE PHOTOSWITCHES M ELECTRONIC CARD O MAX PRESSURE SWITCH P ANTI STRI...

Page 21: ...Fan motor doesn t run during Replace fan motor freezing Check for correct operation of pressure control Cut in at 10 bar 140 psi Hot gas valve open during freezing Replace hot gas valve Water inlet va...

Page 22: ...more ventilation Overcharge of refrigerant Correct the charge Purge off slowly Capillary tube partially restricted Blow charge add new gas drier after evacuating system with vacuum pump Hot gas soleno...

Page 23: ...hine and fan motor OFF on aircooledmodels cleancondenserusingvacuum cleaner whisk broom or non metallic brush 5 Check for water leaks and tighten drain line connections Pour water down bin drain line...

Page 24: ...rage bin REMEMBER To prevent the accumulation of undesirable bacteria it is necessary to sanitize the interior of the storage bin with an anti algae disinfectant solution every week WARNING The Ice Ma...

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