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ITV ICE MAKERS NG 30 Technical Manual

Ice cube makers
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ICE CUBE MAKERS
MODELS:
NG 30
NG 35
NG 45
NG 60
NG 80
NG 110
NG 150
CAREFULLY READ THE INSTRUCTIONS CONTAINED IN THIS MANUAL SINCE THEY
PROVIDE IMPORTANT INFORMATION RELATIVE TO SAFETY DURING INSTALLATION,
USE AND MAINTENANCE.
TECHNICAL MANUAL
NG SERIES

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Summary of Contents for ITV ICE MAKERS NG 30

  • Page 1 TECHNICAL MANUAL NG SERIES ICE CUBE MAKERS MODELS: NG 30 NG 35 NG 45 NG 60 NG 80 NG 110 NG 150 CAREFULLY READ THE INSTRUCTIONS CONTAINED IN THIS MANUAL SINCE THEY PROVIDE IMPORTANT INFORMATION RELATIVE TO SAFETY DURING INSTALLATION,...
  • Page 2 INDEX INTRODUCTION..........................4 1.1.- Warning ............................4 1.2.-Reception of the machine ......................6 INSTALLATION ..........................8 2.1.- Placing of the ice maker ....................... 8 2.2.-Levelling of the ice maker ......................9 2.4.-Minimum distance to obstacles ...................... 9 2.5.- Water supply connection ......................10 2.6.-Drain connection ..........................
  • Page 3 USER TROUBLESHOOTING GUIDE ..................... 31 7.1. general questions ........................31 7.2. drain force............................ 32 TECHNICAL DATA ......................... 33...
  • Page 4 1. INTRODUCTION Thank you for purchasing a ‘NG’ Ice Cube Maker by ITV. You have purchased one of the most reliable ice-making products on the market today. Carefully read the instructions contained in this manual since they provide important information relative to safety during installation, use, and maintenance.
  • Page 5 regulations. The manufacturer shall be held harmless in case of damages arising due to the lack of the ground installation. To see “Installation” chapter (7). In order to assure the proper operation and efficiency of this equipment, it is extremely important to follow the recommendations of the manufacturer, especially those related to cleaning and maintenance operations, which should be performed by qualified personnel only.

  • Page 6: Reception Of The Machine

    Disposal of the ice maker: ITV encourages to follow the regulations of each country regarding eco-friendly disposal of electric and electronic devices such this one. User who is wanting to dispose of this equipment must contact the manufacturer and follow the method to appropriate differentiated collection for the subsequent treatments.
  • Page 7 • ¾ inlet water hose • 22 mm drain hose • 1 filter • User manual. CAUTION: All packing elements (plastic bags, carton boxes and wood Warranty and serial number pallets) should be kept outside the reach of children, as they are a source of potential hazard.

  • Page 8: Installation

    2. INSTALLATION 2.1.- PLACING OF THE ICE MAKER This ice maker is not designed for outdoor operation. The icemaker should not be located next to ovens, grills or other high heat producing equipment. The NG machines are designed to operate at room temperature between 10ºC and 43ºC. There may be some difficulties in ice cube removal under the minimum temperatures.

  • Page 9: Levelling Of The Ice Maker

    2.2.-LEVELLING OF THE ICE MAKER Use a level on top of ice machine in order to ensure the equipment is perfectly leveled. Screw the leveling legs onto the bottom of the ice machine as far as possible. Move the machine into its final position. Use a level on top of the ice machine.

  • Page 10: Connection Diagram

    CONNECTION DIAGRAM: The location must allow enough clearance for water drain and electrical connections in the rear of the ice machine 2.5.- WATER SUPPLY CONNECTION The quality of the water supplied to the ice machine will have an impact on the time between cleanings and ultimately on the life of the product (mainly in water cooled units).

  • Page 11: Drain Connection

    Local water conditions may require treatment of the water to inhibit scale formation, improve taste and clarity. If you are installing a water filter system, refer to the installation instructions supplied with the filter system. Pressure should be between If pressure overpasses such values, 0.1MPa and 0.6MPa (1 and 6 bar).

  • Page 12: Electrical Connection

    If the drain pipe runs incorrectly, the pump may not be able to drain the water, because the flow of the pump may be influenced due to the existence of stored air within the circuit. 2.5.- ELECTRICAL CONNECTION It is mandatory to ground the equipment. To avoid possible electric shock on individuals or damages to the equipment, the machine should be grounded pursuant local and/or national regulations as the case may be.

  • Page 13: Prior Checking And Start-Up

    3. PRIOR CHECKING AND START-UP 3.1.- PRIOR CHECKING a) Is the machine leveled? b) Voltage and frequency are the same as those on the nameplate? c) Are the drains connected and operating? d) Will the ambient temperature and water temperature remain in the following range? ROOM WATER MAXIMUM...
  • Page 14 7.- Close door (for under counter models) / Replace the front panel in its place (for modular models). 8.- Verify the ice cubs with the pictures below. If necessary, adjust production time switches (see table in 4.1, switches 1-4 (tf)) to make the ice cubes with the right shape. Too small Too big Just right...

  • Page 15: Sequence Of Operation

    4. SEQUENCE OF OPERATION Once you connect the machine there is a time delay of 140” during which the water valve is activated to ensure the water tray is filled. Compressor, pump will be off. Once the time is up, it continues with a harvest cycle and the compressor starts. After the harvest, the ice production starts, so the pump starts working.
  • Page 16 Tg (4/0°C) the harvest continues the fixed time with the combination of dip-switches 5-7 (see table). Water is poured over the evaporator helping unstick the ice cubes from the plastic frame. After the harvest cycle, the machine comes back to the production cycle. At the beginning of each Harvest cycle, the PCB checks if the Thermostat is open or close.

  • Page 17: Control Board

    4.1. CONTROL BOARD PCB connections Outputs Compressor Water pump EA Water inlet valve GC Hot gas valve. Inputs SC Evaporator temperature NTC probe Safety pressure switch PCB push button Stock thermostat LED signalling Next to each out relay there is an orange led. Signals relay on Next to each input terminal there is an orange led marking input active.
  • Page 18 Faulty temperature probe Dip switches setting Descripción (* factory setting) tf - ice production timer. See table (sw1- 1/4) tw - Water input timer. See table. (sw1- 5/7) Tc - Evaporator temperature for timer start. (sw1-8) ON=-12ºC / OFF=-8ºC Tg (Hot valve temperature). ON=+4ºC / OFF=+0ºC (sw2-1) Safety high pressure switch trip function.
  • Page 19 machine will stop. Signaling should be indicated since the first failure occurs. If the second retry attempt is ok, the signaling will switch off. In case that a machine stop has been caused by alarm, the reset is done by switching OFF and ON the main switch.
  • Page 20 Keep pressed the button while switching on main front switch. Wash cycle is activated and only the water recirculation pump is running. There is a maximum time for this cycle of 30 min. After this time, pump stops. Wash cycle is finished by switching off main power. Read cleaning and sanitizing instructions for proper usage of this function.
  • Page 21 The system has a way to evacuate the water inside the water reservoir in a manual way. There is a plug(#9) in one of the plastic tube, by retiring this plug, it is possible to evacuate all the water. Also, the system has a Check valve(#10) that does not allow the water to came back to the water reservoir.
  • Page 22 4.4.2 CONTROL BOARD PCB connections Outputs Water pump Inputs Lw Water Level Sensor LED signalling There are two LEDs that signals machine status Status signaling. Continuous led LED5 LED6 PUMP RUNNING WATER LEVEL SENSOR...
  • Page 23 5 Refrigeration diagram...

  • Page 24: Maintenance And Cleaning Procedures

    6 MAINTENANCE AND CLEANING PROCEDURES It is the User’s responsibility to keep the ice machine and ice storage bin in a sanitary condition. Ice machines also require occasional cleaning of their water systems with a specifically designed chemical. These chemical dissolves mineral build up that forms during the ice making process. Sanitize the ice storage bin as frequently as local health codes require, and every time the ice machine is cleaned and sanitized.
  • Page 25 Pipe drain d) Remove the water overflow (#1) and empty the water tray (#2). Return it to their original position to avoid water spill. e) Prepare a solution of an appropriate product for the cleaning of ice machines (lime). Do not use hydrochloric acid.
  • Page 26 g) Disconnect power. Turn on the machine pushing SW3 (see picture). Let solution stand for 30-40 minutes and then switch off the machine. Disconnect power h) Disconnect power. Remove the auxiliary pipe to drain and purge out the ice machine scale (ONLY NG30) remover and residue.
  • Page 27 brush) or cloth. Rinse all areas with water. m) Clean all the interior surfaces of the freezing compartment (including storage bin) with the cleaner solution using a brush or cloth. Rinse all areas with water. n) Mix a solution of sanitizer using approved (EPA/FDA) sodium hypochlorite food equipment sanitizer to form a solution with 100 - 200 ppm free chlorine yield.
  • Page 28 6) Fit filter, injectors, and collector. ATTENTION: IT IS VERY IMPORTANT, WHEN REPLACING THE MANIFOLD THAT THE INJECTORS ARE COMPLETELY PERPENDICULAR TO THE SAME. IF THE CUBES AT THE END ARE TWISTED, THEY CAN REMAIN WITHOUT WATER. 6.3.- CLEANING THE BINS 1) Disconnect the machine, close water faucet and empty storage bin of ice 2) Use the cleaner/water solution to clean all surfaces of the bin.

  • Page 29: Cleaning The Condenser

    6.4.- CLEANING THE CONDENSER AIR CONDENSER 1) Disconnect machine and close water faucet. Remove the front grid by pressing the two clips placed at right side (see figure). Front grid 3) Clean condenser using a vacuum cleaner, soft brush or low pressure air. Clean from top to bottom, not side to side.

  • Page 30: Water Leakage Checking

    6.6.- WATER LEAKAGE CHECKING This must be done whenever maintenance is carried out on the machine: check all water connexions, braces, tubes and hoses in order to eliminate leaks and prevent breakages and flooding. 6.7.- MAINTENANCE TABLE PROCEDURE MONTHLY QUARTERLY HALF YEARLY BIENNIAL...

  • Page 31: General Questions

    7 USER TROUBLESHOOTING GUIDE 7.1. GENERAL QUESTIONS PROBLEM POSSIBLE CAUSES SOLUTION None of the electrics work. Plug the machine and verify Front switch ON but pilot is The machine is not plugged in. socket power Full bin status (LE4 on) with no ice. None of the electrics work.
  • Page 32 7.2. DRAIN FORCE The bin is flooded The check valve is blocked Clean or Replace it The pump is broken Replace it The electrodes do not detect water Disassemble and clean, if problem persist, replace it The pump is always turn on The electrodes detect water even if Disassemble and clean the there is no water...

  • Page 33: Technical Data

    8 TECHNICAL DATA WIRING DIAGRAM To see the wiring diagram, please the following QR code or click the link: NG MODEL MR 400 https://n9.cl/veaqi https://n9.cl/lnyu OTHER TECHNICAL INFORMATION For more technical information scan the following QR code or click the link: •...

This manual is also suitable for:

Ng 35Ng 45Ng 60Ng 80Ng 110Ng 150

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