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DX 40
Service Manual
Cod. 71503041

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Table of Contents
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Summary of Contents for Icematic DX 40

  • Page 1 DX 40 Service Manual Cod. 71503041...
  • Page 2: Table Of Contents

    Page 1 Table of contents page INDICE Specifications GENERAL INFORMATION AND INSTALLATION Introduction Unpacking and Inspection Location and levelling Electrical connections Water supply and drain connections Final check list Installation practice OPERATING INSTRUCTIONS Start up Operational checks OPERATING PRINCIPLES (How it works) Freezing cycle Harvest cycle Control sequence...
  • Page 3: Specifications

    Page 2 SPECIFICATIONS ELECTRONIC CUBE DISPENSER Important operating requirements: MAX. MIN. 40°C Air temperature 10°C 40°C Water temperature 5°C 5 bar Water pressure 1 bar Electr. voltage variations from voltage rating specified on nameplate +10% -10% ice making capacity AIR COOLED MODELS WATER COOLED MODELS °C °C...
  • Page 4 Page 3 SPECIFICATIONS √ WATER INLET WATER INLET - WATER COOLED WATER OUTLET - WATER COOLED WATER OUTLET Dimensions: HEIGHT 1720 mm. WIDTH 380 mm. DEPTH 510 mm. WEIGHT 73 Kgs. CUBE DISPENSER machine specifications Capacity Water req. Cond. unit Finish Comp.
  • Page 5: General Information And Installation

    Page 4 GENERAL INFORMATION AND INSTALLATION INTRODUCTION See data plate on the rear side of the unit and check that local main voltage corresponds This manual provides the specifications and the with the voltage specified on it. step-by-step procedures for the installation, start- up and operation, maintenance and cleaning for CAUTION.
  • Page 6: Water Supply And Drain Connections

    Page 5 All ice machines are supplied from the factory an open trapped and vented drain. When the completely pre-wired and require only electrical drain is a long run, allow 3 cm pitch per meter power connections to the wire cord provided at (1/4"...
  • Page 7: Installation Practice

    Page 6 11. Has the Manufacturer’s registration card 12. Has the owner been given the name and the been filled in properly? Check for correct model phone number of the authorized Service Agency and serial number against the serial plate and serving him? mail the registration card to the factory.
  • Page 8: Operating Instructions

    Page 7 OPERATING INSTRUCTIONS Start up At completion of the FIG. 2 water filling phase (5 minutes) After having correctly installed the ice maker and the unit switches automatically completed the plumbing and electrical into the freezing cycle with the connections, perform the following “Start-up”...
  • Page 9 Page 8 The unit remains however in its normal NOTE. The length of the defrost cycle (not freezing cycle mode untill the evaporator tempe- adjustable) is automatically determinated by rature detected by the sensor reaches the tem- the micro processor of P.C.BOARD in relation perature of -16°C (3°F).
  • Page 10 Page 9 To check for the correct operation of the NOTE. The CUT-IN RANGE OF THE ICE dispensing system place one hand or an ice LEVEL CONTROL SENSOR can be bucket close to the photoelectric sensor located adjusted by means of the DIP SWITCH keys on the front side of the dispensing compartment.
  • Page 11: Freezing Cycle

    Page 10 PRINCIPLE OF OPERATION How it works The length of the second portion of freezing cycle or time T2 (Not adjustable) is equal to the In the cube ice makers the water used to make the ice is kept constantly in circulation by an time required by the evaporator temperature to electric water pump which primes it to the spray go from 0°C (32°F) to -16°C (3°F).
  • Page 12 Page 11...
  • Page 13: Harvest Cycle

    Page 12 The electrical components in operation during NOTE. The length of the defrost cycle (not the freezing cycle are: adjustable) is related to the length of the COMPRESSOR second phase of freezing cycle T2 as detailed in Table B. FAN MOTOR (in air cooled version) WATER PUMP The electrical components in operation during...
  • Page 14: Control Sequence

    Page 13 OPERATION - ELECTRICAL SEQUENCE HARVEST The following charts illustrate which switches Water Filling Phase and which components are ON or OFF during a particular phase of the icemaking cycle. Electrical components (Loads) ..• Compressor ........• Water Pump ........•...
  • Page 15: Component Description

    Page 14 COMPONENTS DESCRIPTION P.C. BOARD (Data processor) The P.C. BOARD, fitted in its plastic box located EVAPORATOR TEMPERATURE in the rear of the unit, consists of two separated SENSOR printed circuits one at high and the other at low voltage integrated with a program selector;...
  • Page 16 Page 15 The 2nd DIP SWITCH key allows to make a The Micro Processor of the P.C. BOARD has also the important function to establish the length rapid check up (auto-diagnosis) of the P.C. of the defrost cycle Ts in relation with the duration BOARD output connections (compressor, water of the second phase of the freezing cycle or time pump, fan motor, water inlet and hot gas solenoid...
  • Page 17 Page 16 The DIP SWITCH keys 8 and 9 setting Located on the hot gas line, this valve is energized determines the range between cut in and cut out through the Micro Processor of P.C. BOARD temperature of the ice bin level temperature during the defrost cycle and during the water sensor as specified in table D.
  • Page 18: Adjustment Procedures

    Page 17 ADJUSTMENT PROCEDURES ADJUSTMENT OF THE CUBE SIZE CAUTION. Before performing actual adjustment of the cube size, check other possible causes for cube size problems, refer to the Service Diagnosis Section for problem review and analysis. Do not perform any adjustment till the icemaking system has progressed through several complete freezing and SMALL...
  • Page 19: Wiring Diagram

    Page 18 WIRING DIAGRAM AIR COOLED - 230/50/1 COLOUR CABLES m = brown n = black bc = light blue gv = yellow-green A) POWER CABLE B) FAN MOTOR C) COMPRESSOR MOTOR D) PUMP E) WATER INPUT EL. VALVE DEFROST EL. VALVE G) AUGER GEAR-MOTOR H) BIN TEMP.
  • Page 20 Page 19 WIRING DIAGRAM WATER COOLED - 230/50/1 COLOUR CABLES m = brown n = black bc = light blue gv = yellow-green A) POWER CABLE B) FAN MOTOR C) COMPRESSOR MOTOR D) PUMP E) WATER INPUT EL. VALVE DEFROST EL. VALVE G) AUGER GEAR-MOTOR H) BIN TEMP.
  • Page 21: Service Diagnosis

    Page 20 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Unit will not run Blown fuse in P.C. Board Replace fuse & check for cause of (No warning LEDS glows) blown fuse Main switch in OFF position Turn switch to ON position Burn-out transformer Replace P.C.
  • Page 22 Page 21 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Cloudy cubes Shortage of water See remedies for shortage of water Dirty water supply Use water softner or water filter Accumulated impurities Use Ice Machine cleaner Shortage of water Water spilling out through curtain Check or replace curtain Water solenoid valve not opening Replace valve...
  • Page 23: Maintenance And Cleaning Instructions

    Page 22 MAINTENANCE AND CLEANING INSTRUCTIONS GENERAL With the ice machine and fan motor OFF on air cooled models, clean condenser using vacuum The periods and the procedures for maintenance cleaner, whisk broom or non metallic brush. and cleaning are given as guides and are not to be construed as absolute or invariable.
  • Page 24 Page 23 in operation to circulate the water in order to rinse WARNING. The Ice Machine Cleaner the entire water system. contains Phosphoric and Hydroxyacetic acids. 10. Do it twice so to be sure no more traces of These compounds are corrosive and may descaling solution remains into the sump.

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