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Summary of Contents for Nelson NWC611D
- Page 1 PROFESSIONAL DISHWASHER ...
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Page 2: Table Of Contents
NWC 611 CONTENTS PRECAUTIONS FOR SAFETY AND USE ................4 TECHNICAL DATA ......................6 INSTALLATION AND POSITIONING .................8 INSTRUCTIONS FOR TECHNICAL STAFF ................9 Connection .......................9 Electrical connection ....................9 SET‐UP ......................... 13 Display Contents .................... 13 Note on display of temperatures ................ 13 ... - Page 3 NWC 611 NELSON Thanks you for choosing one of its products. Read all the instructions in this manual carefully to become familiar with the right conditions for the proper use of your warewasher. TECHNICAL INSTRUCTIONS These are intended for the qualified staff who are to install, commission and test the appliance and carry out any servicing and repairs. INSTRUCTIONS FOR THE USER These provide recommendations for use, a description of the controls and the correct procedures for cleaning and maintaining the warewasher. 3 ...
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Page 4: Precautions For Safety And Use
THE WAREWASHER IS INTENDED FOR PROFESSIONAL USE ONLY AND MUST ONLY BE USED BY AUTHORISED STAFF. IT IS DESIGNED TO WASH TABLEWARE (PLATES, CUPS, BOWLS, OVEN DISHES GLASSES AND CUTLERY) AND SIMILAR ITEMS IN THE RESTAURANT AND INSTITUTIONAL CATERING ... - Page 5 NWC 611 NEVER PLACE SOLVENTS SUCH AS ALCOHOL OR TURPENTINE, WHICH MIGHT CAUSE AN EXPLOSION, INSIDE THE APPLIANCE. NEVER LOAD DISHES DIRTY WITH ASH, WAX OR PAINTS. NEVER USE THE WAREWASHER OR ANY PART OF IT AS A LADDER, SUPPORT OR STAND FOR PEOPLE, ANIMALS OR ANY OBJECT. LEANING OR SITTING ON THE OPEN DOOR OF THE WAREWASHER MIGHT CAUSE IT TO TIP OVER, PUTTING PEOPLE IN DANGER. NEVER LEAVE THE WAREWASHER DOOR OPEN SINCE PEOPLE MIGHT TRIP OVER IT. DO NOT DRINK ANY WATER LEFT IN THE DISHES OR WAREWASHER AT THE END OF THE WASHING PROGRAM. THE APPLIANCE IS NOT SUITABLE FOR USE BY JUVENILES OR PERSONS WITH REDUCED PHYSICAL, SENSORIAL OR MENTAL CAPACITIES, OR THOSE WITHOUT THE NECESSARY KNOWLEDGE AND EXPERIENCE. SUCH PERSONS MAY ONLY USE THE APPLIANCE UNDER THE SUPERVISION OF A PERSON RESPONSIBLE FOR THEIR SAFETY. 5 ...
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Page 6: Technical Data
NWC 611 2 TECHNICAL DATA Supply voltage V 400V 3N ~ Frequency Hz 50 Max. power absorption at 400V 3N ~ kW 10 Boiler heating element power at 400V 3N ~ kW 9 Tank heating element power kW 1.8 Water intake pressure kPa (bar) 100‐600 (1 ÷ 6) Water intake temperature °C 15°C – 60°C Max. intake water hardness °f 15°f Rinse cycle water consumption l 3.2 Boiler capacity l ... - Page 7 NWC 611 APPLIANCE DIMENSIONS AND CONNECTIONS KEY TO LETTERS USED IN DIAGRAM C SOLENOID VALVE EARTH TERMINAL Q E ELECTRICITY SUPPLY CABLE P PERISTALTIC HOSES S DRAIN HOSE 7 ...
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Page 8: Installation And Positioning
Before installation, check that there are no objects or materials in the vicinity which may be damaged by steam or splashes of washing solution, or that any such items are suitably protected. Place the warewasher in the chosen point and remove the protective film. Level the warewasher (with the aid of a spirit level) on its adjustable feet to ensure that it is stable; all other mounting solutions must be approved by the manufacturer. ... -
Page 9: Instructions For Technical Staff
Caution: make sure that the intake and drain hoses are not bent, constricted or crushed after installation. When installing the drain hose to a siphon with valve, the maximum height of the drain outlet is reduced to 600 mm. 4.2 Electrical connection The appliance and any additional equipment must be connected to the electrical system by authorised, skilled staff, in accordance with the relevant regulations; also ... - Page 10 Warning !!! The warewasher is always powered up unless the master switch is turned off. Connect the appliance to the user’s earth system. The terminal for the connection is in the bottom right‐hand corner of the appliance. The earth wire (PE) is yellow‐green in colour, the neutral wire (N) is blue and the live wires (L1, L2, L3) are black, grey and brown. THE POWER SUPPLY CABLE MUST BE REPLACED BY THE MANUFACTURER OR AN AUTHORISED SERVICE CENTRE TO PREVENT ALL RISKS. ...
- Page 11 NWC 611 Figure 1 Appliance three‐phase electrical system diagram 11 ...
- Page 12 The appliance must be installed and/or inspected by qualified staff, who will start it up for the first time and provide the relevant operating instructions. Preparing for use (important) The rinse aid dispenser is fitted on all models, the detergent dispenser only on some. If both dispensers are present put the external detergent and rinse aid containers in place and insert the respective intake hoses on the rear of the appliance into them. Red hose: detergent Blue hose: rinse aid Before inserting the hoses into the containers, fit the weights (needed to ensure that they always draw in liquid from the bottoms of the ...
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Page 13: Set-Up
NWC 611 5 SET-UP Set‐up During first start‐up, the functions/parameters listed below must be set or adjusted: A series of operations can be carried out when the warewasher is first installed to customise it to the user's requirements. To modify the parameters, proceed as follows. 5.1 Display Contents The two green digits provide the following information: Appliance off but powered up: all decimal points on both digits Appliance on: Boiler temperature Washing phase: Tank temperature Pause phase: Boiler temperature Rinse phase: Boiler temperature Programming phase: See parameter programming section Error message: See error messages section 5.2 Note on display of temperatures Both the Boiler and the Tank temperatures provide instantaneous readings of the current value picked up by the probe, but due to the thermal inertia of the probe or its seat, wait about 1 minute after the heating element power absorption reading to obtain the real temperature. 5.3 Parameter programming procedure To access the programming menu, proceed as follows: ... -
Page 14: Modifiable Parameters
NWC 611 5.4 Modifiable parameters This table lists the model choice or cycle and temperature option parameters. F/M ID Description 611 Notes M P0 Appliance Type 06 Construction version Do not modify F P1 Appliance Model 06 Do not modify M P2 Boiler temperature 80C Step 1 degree do not set above 85° M P3 Tank temperature 58C Step 1 degree M P4 Thermostop option 01 0=off 1=on M P5 ... -
Page 15: Adjusting Detergent And Rinse Aid Dispensing
RV Inspection panel removal screw RD: Detergent dispensing regulator screw. RB: Rinse aid dispensing regulator screw (on some models only ) Adjustments are made using the adjuster screw AS Adjustments are made using the adjuster SHOWN. The quantity dispensed is reduced by screw AS SHOWN. The quantity dispensed is turning clockwise and increased by turning reduced by turning anticlockwise and anticlockwise. increased by turning clockwise. It is recommended that periodic monitoring of detergent and rinse aid dispensing; every 15.000 cycles suggested replace the inner peristaltic pipe ... -
Page 16: Malfunctions Shown On The Display (For The Technician)
NWC 611 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE TECHNICIAN) The warewasher is able to identify a number of malfunctions and show them on the display. If the problem persists after the warewasher has been switched off and back on, proceed as described below: E.1 Boiler temperature probe malfunction Boiler temperature probe disconnected or not working E.2 Tank temperature probe malfunction Tank temperature probe disconnected or not working E.3 Water intake malfunction Water intake not completed in the maximum time allowed Check dynamic pressure in intake system, clean water intake filter. If the problem persists: ‐ tank pressure switch has failed (continuous empty reading) ‐ leak from pipe connected to air trap ‐ drain siphon blocked ‐ the tank is empty due to siphoning when the drain pump is not running E.4 ... -
Page 17: Instructions For The User
E.8 ‐circuit board relay failure ‐ tank heating element faulty or "furred" with Tank heating malfunction (does not limescale. heat up) ‐ tank temperature probe faulty or incorrectly positioned E.9 Microprocessor failure Replace circuit board 2 INSTRUCTIONS FOR THE USER 2.1 Control panel On‐off button Total emptying button (tank and boiler) L1 power on LED L2 pump‐out in progress LED Short cycle key Medium cycle key ... -
Page 18: First Use Each Day (Tank And Boiler Empty)
NWC 611 We recommend the use of Nelson products, specially developed for this warewasher. When topping up the detergent and rinse‐aid container, take care not to swap the products; this might damage the warewasher and cause malfunctions. Do not mix different detergents; this would damage the dispenser device. Failure to comply with this recommendation leads to forfeiture of the warranty entitlement on the appliance’s water system. Industrial warewasher detergents may cause serious irritation. Comply carefully with the instructions provided by the detergent producer on the pack. CHECK 1. Turn on the 5. Switch on the master switch 2. The level of 4. That the filters are mains water tap (user): the word “OFF” detergent and rinse in place, the spray (user) appears on the display. aid in the containers. arms rotate. ... - Page 19 NWC 611 Load the basket and close the hood. Select the programme required by pressing one of the three buttons; the LED of the selected program flashes and the other two go out. The cycle starts after the hood has been raised and lowered. While washing is in progress the display shows the water temperature in the tank. During rinsing, it shows the boiler temperature. At the end of the program the program LED comes on and “End" flashes on the display. Remove the basket ...
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Page 20: Choosing The Program
Very dirty dishes and cutlery Long 3’ (*) The cycle duration stated above is guaranteed if the appliance is connected to hot water > 50°C <60°C If the warewasher is supplied with cold water, the cycle duration might increase depending on the intake water temperature and the "thermostop" setting. 2.5 Changing the program (not possible once the program has started) If the master switch is not turned off, the appliance sets on the last cycle performed. To ... - Page 21 NWC 611 TOTAL PUMP‐OUT AT THE END OF THE DAY The warewasher is able to perform a pump‐out and self‐cleaning cycle with automatic switch‐off. Press the pump‐out button for about 2”, the LED flashes and the pump‐out and automatic tank cleaning phase starts. When pump‐out is complete the appliance switches to “OFF” status. (only 2 digits lit on the display) After a total pump‐out the filters should be cleaned as described in the relevant point. 21 ...
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Page 22: Maintenance And Cleaning
If possible, leave the door ajar when not in use; Clean surfaces thoroughly and often with a damp cloth; use neutral, non‐abrasive detergents which do not use chlorine compounds, which corrode and damage stainless steel. Do not use the products mentioned above even when cleaning the floor underneath or in the vicinity of the warewasher, to ensure that fumes or drops cannot damage the steel surfaces. The warewasher has IPX5 protection but pointing water jets straight at it for cleaning is forbidden 3.1 Daily cleaning of filters Cleaning the filter at the end of each working day Remove the filters (simply lift them out as shown here), taking care ... -
Page 23: Routine Inspection Of The Spray Arms (Once A Week)
TOP SPRAY ARMS BOTTOM SPRAY ARMS Clean the outside of the appliance with a damp cloth and neutral soap, rinsing and drying thoroughly. 3.3 Lengthy periods out of use If the warewasher is to be out of use for a fairly long period of time, the detergent and rinse aid dispenser devices must be emptied to prevent crystallisation and damage to the pumps: remove the intake hoses from the detergent and rinse aid containers and place them in a container of clean water, then perform a few wash cycles followed by a complete pump‐out. Finally, turn off the master switch, close the water intake valve and leave the door ajar until the interior is completely dry. The detergent and rinse aid intake hoses must be put back into the containers when the warewasher is returned to service, taking care not to swap them over (red hose = detergent, blue hose = rinse aid). ... -
Page 24: Troubleshooting
NWC 611 4 TROUBLESHOOTING How to deal with any problems without calling the after‐sales service PROBLEM POSSIBLE CAUSE POSSIBLE REMEDY LIGHT L1 DOES NOT COME Mains power failure Check electrical mains connection. ON WASHING PROGRAM DOES The warewasher has not yet Wait for the 3 program lights to NOT START finished filling. come on. Spray arm washing holes Remove spray arms and clean them blocked by dirt or limescale (8.2 Periodic checks) See “Cleaning the filter during the Filter fouled day” Too little or unsuitable Check type and quantity of detergent or rinse aid detergent. No or not enough detergent or rinse aid being supplied: ... - Page 25 NWC 611 PROBLEM POSSIBLE CAUSE POSSIBLE REMEDY Low rinsing temperature due to Switch thermostop ON DISHES NOT PROPERLY thermostop OFF and/or water If the problem persists call the after‐ DRIED intake temperature below 50° sales service 25 ...
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Page 26: Malfunctions Shown On The Display (For The User)
NWC 611 5 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE USER) The warewasher is able to identify a number of malfunctions and show them on the display. If the problem persists after the warewasher has been switched off and back on, proceed as described below: E.1 Boiler temperature probe malfunction Switch the warewasher off and back on and perform another cycle; if the problem persists call the after‐ sales service. E.2 Tank temperature probe malfunction Switch the warewasher off and back on and perform another cycle; if the problem persists call the after‐ sales service. E.3 Water intake malfunction Water intake not completed in the maximum time allowed Check dynamic pressure in intake system: the water intake filter may need cleaning, the tap may be turned off or the rinsing nozzles may be fouled. E.4 Boiler overheating. Switch the warewasher off and wait a few minutes, then switch back on and perform another cycle; if ... - Page 27 Our After‐Sales Department will be able to provide you with guidance about keeping your appliance functioning correctly and put you in touch with your nearest authorised Service Centre. 020 8993 6198 Our whole product offering can be viewed at: www.nelsonwash.co.uk International customers, please contact your local Nelson distributor. “ indirizzo “ Nelson Dish & Glasswashing Machines Unit 1 Rowley Industrial Park Roslin Road Acton LONDON W3 8BH Fax: 020 8993 8979 19.290.0954.00 18/01/12 Manual Ed. ...
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