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background image

NW511

11

Key

to

single

‐

phase/three

‐

phase

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

Filter

sensor

PD

Detergent

peristaltic

pump

FLMT

Flowmeter

EVF

Filler

solenoid

valve

SS

Salt

sensor

PS

Drain

pump

RD

Door

sensor

PLB

Boiler

pressure

switch

PR

Rinsing

pump

PLV

Tank

level

pressure

switch

PL

Washing

pump

PSV

Tank

safety

pressure

switch

PLB

Boiler

level

pressure

switch

AQS

Aquastop

microswitch

THB

Boiler

safety

thermostat

SB

Motherboard

M

Terminal

board

SI

Interface

board

LF

RFI

filter

TM

Terminal

board

ground

FUSE

Mains

fuse

TV

Tank

ground

CB

Boiler

contactor

TF

RFI

filter

ground

RB

Boiler

heating

element

TPL

Washing

pump

ground

T

‐

FU

Overtemperature

fuse

TPR

Rinsing

pump

ground

THRV

Tank

safety

thermostat

TRV

Tank

heating

element

ground

RV

Tank

heating

element

TB

Boiler

heating

element

ground

Figure

–

Appliance

three

‐

phase

electrical

system

diagram

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Summary of Contents for NW511

Page 1: ...PROFESSIONAL DISHWASHER...

Page 2: ...ocedure 15 5 4 Modifiable parameters 16 5 5 Alarm trigger time thresholds 16 5 6 Adjusting detergent and rinse aid dispensing 17 5 7 Adjusting the regeneration frequency models with softener only 18 5...

Page 3: ...e 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...

Page 4: ...E OF NON ORIGINAL SPARE PARTS THIS APPLIANCE IS MARKED AS REQUIRED BY EU DIRECTIVE 2002 96 EC WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT WEE BY MAKING SURE THAT THIS PRODUCT IS DISPOSED OF CORRECTLY TH...

Page 5: ...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...

Page 6: ...0 8 Water intake pressure kPa bar 100 600 1 6 Water intake temperature C 15 C 60 C Intake water hardness models with softener f 15 f 60 f Rinse cycle water consumption l 3 2 Boiler capacity l 6 Tank...

Page 7: ...NW511 7 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...

Page 8: ...ally 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...

Page 9: ...liance so do not install it behind the warewasher The stated cycle duration applies to appliances supplied with hot water 50 C 60 C If the warewasher is supplied with cold water the cycle duration mig...

Page 10: ...ance only The user must have a master switch and a differential safety breaker with rating suitable for the appliance s characteristics installed on the electricity supply line in accordance with the...

Page 11: ...ler pressure switch PR Rinsing pump PLV Tank level pressure switch PL Washing pump PSV Tank safety pressure switch PLB Boiler level pressure switch AQS Aquastop microswitch THB Boiler safety thermosta...

Page 12: ...NW511 12 Figure 1 Appliance single phase electrical system diagram...

Page 13: ...the filters onto their ends as shown If the detergent dispenser is not factory fitted it can be retrofitted after ordering the relative kit As an alternative an external dispenser can be fitted making...

Page 14: ...ever 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...

Page 15: ...e 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 procedur...

Page 16: ...off 1 on M P5 Soft Start option 01 0 off 1 on M P6 Boiler temperature offset 00 Real measured Offset M P7 Tank temperature offset 04 Real measured Offset M P8 Real temperature display 01 0 filtered 1...

Page 17: ...kwise and increased by turning clockwise RB Rinse aid dispensing regulator screw Adjustments are made using the adjuster screw AS SHOWN The quantity dispensed is reduced by turning clockwise and incre...

Page 18: ...ver 60 dF an external water treatment device must be used and the regeneration frequency must be set at H00 5 9 Table of parameters This table shows the relationship between the intake water hardness...

Page 19: ...eck 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 block...

Page 20: ...asher 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 fre...

Page 21: ...generation key only if softener is fitted L1 power on LED L2 pump out in progress LED L3 regeneration LED flashing regeneration request L4 no salt LED only if softener is installed Short cycle key Med...

Page 22: ...ser 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 Comp...

Page 23: ...ait at least 30 before moving on to the next phase to give the tank time to reach the correct washing temperature Load the dishes or glasses and close the door Select the programme required by pressin...

Page 24: ...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 starts to flash and the washing...

Page 25: ...sts about 15 after which the appliance switches off automatically Resin regeneration for models with water softener Once the number of washing cycles set during installation has been completed as indi...

Page 26: ...ialist technician twice a year The internal pipe of the detergent peristaltic pump should be checked and or replaced by the After Sales Service every 12 months or 15 000 wash cycles and operation of t...

Page 27: ...might cause damage Reassemble the spray arms with care TOP SPRAY ARMS BOTTOM SPRAY ARMS 3 1 2 Clean the outside of the appliance with a damp cloth and neutral soap rinsing and drying thoroughly 8 3 Le...

Page 28: ...ity of detergent No or not enough detergent or rinse aid being supplied detergent or rinse aid not being taken from the relative container Check that the intake filter is not fouled If you are unable...

Page 29: ...uitable for the type of mains water If the problem persists contact the after sales service WATER IN TANK AFTER PUMP OUT Drain hose incorrectly positioned or partially obstructed Check that the warewa...

Page 30: ...f wait 15 and back on and perform another cycle if the problem persists call the after sales service E 5 Tank overheating Switch the warewasher off wait 15 and back on and perform another cycle if the...

Page 31: ...ists call the after sales service E 8 Tank heating malfunction does not heat up Switch the warewasher off and back on and perform another cycle if the problem persists call the after sales service E 9...

Page 32: ...le 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 view...

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