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Table of Contents
Related Manuals for Nelson NWG410MD
Summary of Contents for Nelson NWG410MD
- Page 1 PROFESSIONAL DISHWASHER ...
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Page 2: Table Of Contents
‐ NWG410 ‐ CONTENTS PRECAUTIONS FOR SAFETY AND USE ................4 TECHNICAL DATA ......................5 INSTALLATION AND POSITIONING .................7 INSTRUCTIONS FOR TECHNICAL STAFF ................8 Plumbing Connection ....................8 Electrical connection ....................9 FIRST START‐UP ...................... 11 Using the water softener (on models with this feature only) ...... 12 ... - Page 3 ‐ NWG410 ‐ Routine inspection of the spray arms (twice a week) .......... 24 Lengthy periods out of use .................. 24 TROUBLESHOOTING .................... 25 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE USER) ........ 26 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 glasswasher. TECHNICAL INSTRUCTIONS These are intended for the qualified staff who are to install, commission and test ...
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Page 4: Precautions For Safety And Use
THE APPLIANCE MUST BE EARTHED AS REQUIRED BY ELECTRICAL EQUIPMENT SAFETY STANDARDS. THE GLASSWASHER IS INTENDED FOR PROFESSIONAL USE ONLY AND MUST ONLY BE USED BY AUTHORISED STAFF. IT COMPLIES WITH THE INTERNATIONAL STANDARDS ON ELECTRICAL AND MECHANICAL SAFETY (CEI‐EN‐IEC 60335‐2‐58/61770) AND ELECTROMAGNETIC COMPATIBILITY(CEI‐IEC‐EN 55014‐1/‐2, ... -
Page 5: Technical Data
‐ NWG410 ‐ NEVER USE THE GLASSWASHER 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 GLASSWASHER MIGHT CAUSE IT TO TIP OVER, PUTTING PEOPLE IN DANGER. NEVER LEAVE THE GLASSWASHER DOOR OPEN SINCE PEOPLE MIGHT TRIP OVER IT. DO NOT DRINK ANY WATER LEFT IN THE DISHES OR GLASSWASHER 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. 2 TECHNICAL DATA Supply voltage V 230V 1N ~ Frequency Hz 50 Max. power absorption at 230V 1N ~ kW 3,1 ... - Page 6 ‐ NWG410 ‐ CAVITY DIMENSIONS FOR BUILT‐UNDER INSTALLATION APPLIANCE DIMENSIONS AND CONNECTION POSITIONS (*N.B. – VALUE “1000” WITH ASTERISK: max 600 if siphon with valve is used) 6 ...
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Page 7: Installation And Positioning
‐ NWG410 ‐ KEY TO LETTERS USED IN DIAGRAM R LOWER BACK PANEL C FILLER HOSE Q EARTH TERMINAL E ELECTRICITY SUPPLY CABLE P PERISTALTIC HOSES S DRAIN HOSE 3 INSTALLATION AND POSITIONING INSTALLATION and POSITIONING Bring the glasswasher to the installation site, remove the packaging and check the appliance and components for damage; any damage found must be reported to the transporter in writing. The packaging components (plastic bags, expanded polystyrene, nails, etc.) must not be left within reach of children and pets since they are potentially dangerous. All packaging materials used are environment‐friendly. They can be kept without constituting any hazard, or may be disposed of at a specialist waste disposal centre. The plastic components suitable for recycling are marked as follows: PE polyethylene: external packaging film, bag containing the instructions, protective bags. PP polypropylene: straps. PS expanded polystyrene: corner guards, top of packaging. Wooden and cardboard components can be disposed of in accordance with the relevant regulations. When the product is decommissioned it must not be dumped in the environment; it must be disposed of in accordance with the relevant regulations. All metal parts are in stainless steel and can be removed. The plastic parts are marked with the symbol identifying the material used. ... -
Page 8: Instructions For Technical Staff
‐ NWG410 ‐ Caution: the indoor system and premises in which equipment for institutions is installed must comply with the relevant regulations. The manufacturer declines all liability for direct or indirect injury or damage deriving from failure to comply with these regulations. 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 glasswasher in the chosen point and remove the protective film. Level the glasswasher (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. 4 INSTRUCTIONS FOR TECHNICAL STAFF 4.1 Plumbing Connection Water supply and drain connection ... -
Page 9: Electrical Connection
‐ NWG410 ‐ 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 ‐ NWG410 ‐ Key to electrical system diagram NTCB Boiler temperature probe EVA Aquastop solenoid valve NTCV Tank temperature probe EVR Regeneration solenoid valve SDET Detergent sensor EVS Brine discharge solenoid valve SBRIL Rinse aid sensor PB Rinse aid peristaltic pump SFIL ...
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Page 11: First Start-Up
The electrical protection system must undergo a functional test before the appliance is put into operation. 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 11 ... -
Page 12: Using The Water Softener (On Models With This Feature Only)
The mixture of water and detergent must not get into the salt tank, as this would impair operation of the regeneration system. In this case warranty cover will be forfeited. IMPORTANT: Whenever the type of detergent or rinse aid is changed, it is ABSOLUTELY ESSENTIAL to flush out the peristaltic pumps by placing the external intake pipes in water for a few cycles. Always use only products specifically recommended for use in a glasswasher. Failure to comply with this recommendation leads to forfeiture of the warranty entitlement on the appliance’s water system. The internal pipes of the detergent and rinse aid pumps should be replaced by the After‐Sales Service every 12 months or 15,000 wash cycles and operation of the diaphragm rinse aid pump should be checked. 12 ... -
Page 13: Set-Up
‐ NWG410 ‐ 6 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 glasswasher is first installed to customise it to the user's requirements. To modify the parameters, proceed as follows. 6.1 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 6.2 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 to obtain the real temperature. ... -
Page 14: Modifiable Parameters
‐ NWG410 ‐ 6.4 Modifiable parameters This table lists the model choice or cycle and temperature option parameters. ID Description Default Min. Max Notes M M P0 Appliance Type 1 1 4 Construction version Do not modify F P1 Appliance Model Do not modify M P2 Boiler temperature 80C 60C 90C Step 1 degree WARNING: The actual boiler temperature depends on whether the ... -
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. 15 ... -
Page 16: Adjusting The Regeneration Frequency (Models With Softener Only)
2) Hold down the and keys simultaneously for 6 seconds; H0 appears on the display 3) Use the key to modify the parameter; H0,H1,H2,H3,H4,H5 and H0 will appear on the display in cyclic sequence 4) Press the On Off key to confirm the change and quit programming mode. With values over 60°dF an external water treatment device must be used and the regeneration frequency must be set at H00 6.9 Table of parameters This table shows the relationship between the intake water hardness and the quantity the resins are able to treat; regeneration is required once the appliance has preformed the set number of cycles. Regeneration cycle duration: 12 minutes. Hardness (dF French Resin duration in Hardness (dH German degrees) Setting level ... -
Page 17: Malfunctions Shown On The Display (For The Technician)
Water not pumped out of tank removing the insert on the sump (from inside the tank) If the problem persists: ‐ with the tank empty: tank pressure switch defect (the contact is locked on full) ‐ with tank full: drain pump has failed If the system fails to pump out because the drain pump is fouled (as a result of incorrect filter positioning), proceed as follows: Bale out the glasswasher with a basin and disconnect it from the electrical mains. Unscrew the screw A, release the tang B and lift it. Check that the impeller of the drain pump ... -
Page 18: Instructions For The User
‐ boiler temperature probe faulty or incorrectly positioned E.8 Tank heating malfunction (does not ‐circuit board relay failure heat up) ‐ tank heating element faulty or "furred" with limescale ‐ tank temperature probe faulty or incorrectly positioned E.9 Microprocessor failure Replace circuit board 8 INSTRUCTIONS FOR THE USER 8.1 Control panel On‐off button Total emptying button (tank and boiler) Regeneration key (only if softener is fitted) L1 power on LED L2 pump‐out in progress LED L3 regeneration in progress LED (only if softener is installed) ... -
Page 19: Before Washing
8.2 Before washing Use only detergents and rinse aids for industrial glasswashers. Do not use detergents intended for hand washing. We recommend the use of Nelson products, specially developed for this glasswasher. When topping up the detergent and rinse‐aid containers, take care not to swap the products; this might damage the glasswasher 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 glasswasher detergents may cause serious irritation. Comply carefully with the instructions provided by the detergent producer on the pack. CHECK 5. Switch on the 2. The level of 3. That there is 4. That the filters 1. Turn on the master switch detergent and ... -
Page 20: First Use Each Day (Tank And Boiler Empty)
‐ NWG410 ‐ 8.3 First use each day (tank and boiler empty) Display shows Actions and what happens Door closed and master switch on ON: Press and hold it down for 2‐3 seconds; the ON/OFF light and the two digits on the display light up. The appliance fills the tank automatically. At the end of this phase, when the tank is full, P appears on the display and program lights L5, L6 and L7are lit. WARNING! If the appliance is connected to cold water, wait at least 15' before moving on to the next phase to give the tank time to reach the correct washing temperature. Load the basket and close the door. ... -
Page 21: Choosing The Program
<60°C If the appliance is supplied with cold water, the cycle duration might increase depending on the intake water temperature and the "thermostop" setting. 8.5 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 change it, press the key of the program required; the light comes on. To confirm hold down for about 2”. The LED ... - Page 22 Press the key; the LED flashes and the regeneration phase starts. It lasts about 10 minutes, during which time the LED keeps flashing. When the regeneration phase is complete, the appliance switches to “OFF” status (only 2 digits lit on the display). To reuse the appliance, repeat procedure 7.3 Filling up with regenerating salt (for models with water softener) Caution:use only salt for water softener, do not use cooking salt. Salt must be added when the LED underneath the symbol shown in the box on the left 22 ...
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Page 23: Maintenance And Cleaning
Top up with salt when there is no water in the tank to prevent washing water from getting into the water softener device. The salt tank has a capacity of about 1 kg of coarse‐grained salt . The salt tank is in the bottom of the appliance's tank. After removing the basket, undo the cap and pour the salt in using the funnel supplied. Remove any salt residues around the opening before screwing the cap back on. 9 MAINTENANCE AND CLEANING Although no particular scheduled maintenance is required, users are advised to have the glasswasher ... -
Page 24: Routine Inspection Of The Spray Arms (Twice A Week)
Clean the rinse spray-arm Clean the outside of the appliance with a damp cloth and neutral soap, rinsing and drying thoroughly. 9.3 Lengthy periods out of use If the glasswasher 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 glasswasher is returned to service, taking care not to swap them over (red hose = detergent, blue hose = rinse aid). ... -
Page 25: Troubleshooting
‐ NWG410 ‐ 10 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 glasswasher 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 (9.2 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: Check that the intake filter is not POOR WASHING RESULTS detergent or rinse aid not being fouled. If you are unable to solve the taken from the relative ... -
Page 26: Malfunctions Shown On The Display (For The User)
E.6 Inspect the filters for dirt and check that the drain hose is not blocked, bent or crushed. Water not pumped out of tank Check that the drain pump is not blocked by dirt by removing the insert on the sump (from inside the tank, see photo) If the system fails to pump out because the drain pump is fouled (as a result of incorrect filter positioning), proceed as follows: Bale out the glasswasher with a basin and disconnect it from the electrical mains. Unscrew the screw A, release the tang B and lift it. Check that the impeller of the drain pump underneath the cover turns freely, and is free from ... - Page 27 ‐ NWG410 ‐ E.7 Boiler heating malfunction (does not Switch the glasswasher off and back on and perform heat up) another cycle; if the problem persists call the after‐ sales service E.8 Tank heating malfunction (does not Switch the glasswasher off and back on and perform heat up) another cycle; if the problem persists call the after‐ sales service E.9 Microprocessor failure Switch the glasswasher off and back on and perform another cycle; if the problem persists call the after‐ sales service 27 ...
- Page 28 Our Sales Department staff will be able to provide you with information about prices and special offers. 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. Nelson Dish & Glasswashing Machines Unit 1 Rowley Industrial Park Roslin Road Acton LONDON W3 8BH 19.390.2733.00 30/09/11 Manual Ed. Date ...
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