Bertazzoni P604LPRONE User Manual

BERTAZZONI

INSTALLATION AND USER MANUAL BUILT-IN GAS HOBS MODEL P93V (METAL) MODEL P94GV (GLASS)

INSTRUCTIONS D’INSTALLATION ET D’UTILISATION PLAQUES DE CUISSON ENCASTRABLES AU GAZ TYPE P93V (MÉTAL) TYPE P94GV (VERRE)

3100419

WWW.BERTAZZONI.COM

/ Contents

CONTENTS

INTRODUCTION AND WARNINGS _________________________________________________ MANUFACTURER LIABILITY ____________________________________________________ ENVIRONMENTAL PROTECTION _________________________________________________

GENERAL SAFETY INSTRUCTIONS_______________________________________________ USAGE INSTRUCTIONS ________________________________________________________ APPLIANCE DATA PLATE ______________________________________________________ PLASTIC PACKAGING _________________________________________________________

TECHNICAL INSTALLATION INSTRUCTIONS_________________________________________ HOB INSTALLATION __________________________________________________________ IMPORTANT INFORMATION INSTALLING THE HOB ABOVE AN OVEN _________________________________________ INSTALLING THE HOB ABOVE A CUPBOARD OR DRAWERS _________________________ HOB FASTENING________________________________________________________________ ROOM VENTILATION ___________________________________________________________ LOCATION AND VENTILATION____________________________________________________ CONNECTING THE APPLIANCE TO THE GAS SUPPLY_______________________________ PRECAUTIONS WHEN USING THE PRODUCT WITH LPG (BUTANE/PROPANE) GAS CONVERSION ____________________________________________________________ ELECTRICAL CONNECTION ______________________________________________________ MAINTENANCE ________________________________________________________________ REPLACING COMPONENTS ____________________________________________________

______________________________________________________

___________

4 4 4 5 5 5 5

6 6 6 7 7 8 8 9 9 10 11 12 12 12

HOB DESCRIPTION _____________________________________________________________

USING THE APPLIANCE _________________________________________________________ BURNERS AND GRATES ________________________________________________________ USING THE BURNERS _________________________________________________________ SAFETY SYSTEM ______________________________________________________________ MANUAL IGNITION _____________________________________________________________ ACCESSORIES ________________________________________________________________ CLEANING THE APPLIANCE_____________________________________________________ TROUBLESHOOTING___________________________________________________________

14 14 14 15 15 15 15 16

/ From the desk of our president

FROM THE DESK OF OUR PRESIDENT

Dear new owner of a Bertazzoni appliance,

I want to thank you for choosing one of our beautiful products for your home.

My family started manufacturing kitchen appliances in Italy in 1882, building a reputation for quality of engineering and passion for good food.

Today, our products stand out because of their unique blend of authentic Italian design and superior appliance technology. It is our mission to make products that function perfectly and bring joy to their owners.

By making beautiful products we respond to our customers’ ﬂ air for good design. By making them versatile and easy-to-use, cooking with Bertazzoni becomes a real pleasure.

This manual will help you learn to use and care for your Bertazzoni appliance in the safest and most eﬀ ective way, so that it can give you the highest satisfaction for years to come.

Enjoy!

Paolo Bertazzoni President

/ Introduction

INTRODUCTION

READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLING AND USING THE APPLIANCE. These instructions are valid only for the countries whose identifying symbols are shown on the appliance label. The manufacturer shall not be held liable for property damage or personal injury resulting from incorrect installation or improper use of the appliance. The manufacturer shall also not be held liable for any imprecisions due to printing or transcription errors in this booklet. The appearance of the ﬁ gures included herein is only for guidance. The manufacturer reserves the right to make modiﬁ cations to its products when it considers this necessary or beneﬁ cial, however the essential safety and performance characters shall not be aﬀ ected.

THIS APPLIANCE IS DESIGNED FOR NONPROFESSIONAL, DOMESTIC USE.

This user manual is an integral part of the appliance and must therefore be kept in its entirety in a place accessible to the user for the entire lifetime of the appliance. Read this manual before using the appliance.

MANUFACTURER LIABILITY

The manufacturer shall bear no liability for property damage or personal injury due to:

• Use of the appliance other than that speciﬁ ed

• Failure to comply with the instructions in the

user manual

• Tampering with/unauthorised modiﬁ cations to

any part of the appliance

• The use of non-original spare parts.

• This appliance is intended for cooking food in

the home environment. Any other use shall be considered improper.

• The appliance is not designed to operate

with external timers or with remote-control systems.

ENVIRONMENTAL PROTECTION

Please think of the environment when disposing of the packaging.

This appliance is marked in accordance with European Community Directive 2012/19/EU on waste electrical and electronic equipment (WEEE). This directive deﬁ nes the standards for the collection and recycling of waste electrical and electronic equipment applicable throughout the European Union.

The packaging of this appliance is composed of the elements strictly necessary to ensure suﬃ cient protection during transport. The packaging materials are completely recyclable, thus reducing their environmental impact. Please help to protect the environment by taking the following tips into consideration:

• Sort the packaging materials for recycling

• Render the old appliance unusable before taking it to the collection facility Ask the competent local authorities for details of the nearest recycling centre you can take the old appliance to.

• Do not dispose of used oil down the drain. Keep it in a closed container and take it to a recycling centre; if this is not possible, dispose of it in mixed waste (in this manner it will be disposed of at a monitored facility – although this is not the best solution, it at least prevents contamination of the sewage/water systems).

WARNING: The a declaration, under the manufacturer’s full responsibility, that the product complies with all European health, safety and environmental requirements laid out in the legislation covering this product type.

marking on this product is

INTRODUCTION

/ Introduction

GENERAL SAFETY INSTRUCTIONS

• During use, the appliance and its accessible

parts become very hot.

• Never touch the heating elements during use.

• Keep children under the age of eight at a

safe distance unless they are constantly supervised.

• Children must not play with the appliance.

• This appliance may only be used by children

over the age of eight, and by people with reduced physical, sensory or mental capacity, or lacking in experience in the use of electrical appliances, provided that they are supervised or instructed by adults who are responsible for their safety.

• Never rest metal objects on the appliance

during use, as these could become red hot.

• Switch oﬀ the appliance after use.

• Never try to put out a ﬁ re or ﬂ ames with water:

Turn oﬀ the appliance and smother the ﬂ ames with a ﬁ re blanket or other appropriate cover.

• Cleaning and maintenance must not be carried

out by children without adequate supervision.

• Ensure that hot surfaces are allowed to cool

before proceeding to clean the appliance.

• Have installation and servicing carried out

by qualiﬁ ed personnel in compliance with applicable standards and legislation. Do not try to repair the appliance yourself or without the assistance of a qualiﬁ ed technician.

• Do not modify this appliance.

• Do not insert anything in the slots.

• Do not obstruct ventilation openings and heat

dispersal slots.

• If the power supply cable is damaged, contact

technical support immediately and they will arrange for it to be replaced.

• Do not use abrasive or corrosive detergents

(e.g. scouring powders, stain removers and metallic sponges) on glass parts.

• Do not sit on the appliance.

• Do not use steam jets to clean the appliance.

• Never leave objects on the cooking surface.

• Do not use the appliance as a space heater

for any reason.

• In the event of breakage or cracking of the

glass, shut oﬀ all burners immediately and isolate the hob's gas and electricity supplies. Contact technical support.

• Sudden and extreme changes in temperature

can cause the glass to break – never pour cold liquids onto the hob.

• Damaged or unsuitably sized cookware which

overhangs the edges of the hob or is poorly positioned can cause serious injury.

• Using the hob generates heat, moisture and

combustion products – keep the area well ventilated during operation.

INSTRUCTIONS FOR USE

• Use ﬂ at-based cookware.

• Position pans before lighting the burners.

• Never leave the hob when cooking foods with

oil and grease, as they can ﬂ ash over and ignite easily.

• Do not use aerosols in the vicinity of this

appliance while it is in use.

• Adjust the ﬂ ame so that it does not protrude

beyond the edge of the pan base, as this could damage the handles.

• Do not place pans directly on the burners.

• Ensure that the pan is centred over the burner.

APPLIANCE DATA PLATE

The data plate bears the technical data, serial number and brand name of the appliance. The appliance data plate is located on the lower casing, and must not be removed at any time. A copy is provided in this manual for reference.

PLASTIC PACKAGING

Danger of suﬀ ocation

• Do not leave the packaging or any part thereof

unattended.

• Do not let children play with the plastic bags.

/ Installation

TECHNICAL INSTALLATION INSTRUCTIONS

ECHNICAL INSTALLATION INSTRUCTION

The installation, adjustments, transformations and maintenance listed in this section must only be performed by qualiﬁ ed technicians (in accordance with applicable legislation). Incorrect installation can cause property damage and injury to people or pets; the manufacturer shall not be held liable in this event. The appliance’s automatic regulation or safety devices may only be modiﬁ ed by the manufacturer or a duly authorised supplier during the appliance’s lifetime.

Ensure all necessary PPE is used when carrying out the installation

INSTALLING THE HOB

Ensure that the hob is fully present and undamaged after removing all loose parts from their inner and outer packaging. In the event of any uncertainty, do not use the appliance and contact technical support. Make a cut-out in the worktop (see ﬁ gure) in accordance with the appliance dimensions given in the table.

IMPORTANT INFORMATION

The hob may be installed between kitchen cabinets or between a cabinet and a (masonry) wall. The rear wall and surrounding surfaces must be able to withstand temperatures of up to 90°C. To prevent peeling of the melamine laminate typically used on kitchen carcases, the glue bonding it must be able to withstand temperatures of at least 150°C. Installation of the appliance must be performed in accordance with the provisions of applicable legislation. This domestic appliance is not connected to an extraction device for combustion products. It must therefore be connected in accordance with the above-mentioned installation rules. Particular attention must be paid to room ventilation requirements.

The worktop must be able to withstand a maximum temperature of 90°C (120°C for the 75cm version)

A (cm) B(cm) H(cm) L(cm)

60cm hob 56 48 60,5 52,5 75cm hob 56 48 75,5 52,5

90cm hob 85 48 89,3 52,5

C min (cm) 8,5 M (cm) 4,4 D min (cm) 3 N (cm) 1,1 E min (cm) 18 P (cm) 47,4 F min (cm) 70 Q (cm) 4 G min (cm) 8,5

NPQ

(

)

TECHNICAL INSTALLATION INSTRUCTIONS

ECHNICAL INSTALLATION INSTRUCTION

/ Installation

INSTALLING THE HOB ABOVE AN OVEN

The clearance between the hob and the kitchen furniture or other installed appliances must be enough to ensure suﬃ cient ventilation and air discharge. If installed above an oven, space must be left between the bottom of the hob and the top of the product installed below to allow for ventilation of the entire compartment (see ﬁ gure). The oven must be equipped with a cooling device. The manufacturer shall bear no liability in the event of the hob being installed in combination with an oven from another manufacturer.

INSTALLING THE HOB ABOVE A CUPBOARD OR DRAWERS

The clearance between the hob and the kitchen units must be enough to ensure suﬃ cient ventilation and air discharge. If there are other units/furniture (side walls, drawers, etc.), dishwashers or fridges under the hob, a double-layer wooden base must be installed at least 20 mm from the bottom of the hob to avoid any accidental contact. It must only be possible to remove the double-layer base using special tools.

/ Installation / Ventilation

HOB FASTENING

In order to prevent accidental water ingress into the unit below, the appliance is ﬁ tted with a special gasket.

1) Lay the sealing gasket out along the lower edge of the built-in hob after cleaning the mating surface.

2) Place the hob into the worktop cut-out.

3) To fasten the hob to the worktop, use a screwdriver to install the four plates using the corresponding screw in the bottom of the hob.

ROOM VENTILATION

In order to allow for correct appliance operation, the room in which it is installed must have continuous ventilation. The volume of the room must be no less than 25 m³, and the quantity of air required must be based on regular combustion of the gas and the room ventilation. The natural air ﬂ ow must occur through permanent openings in the wall of the room requiring ventilation; these openings must lead directly outdoors, and must have a minimum area of 100 cm². Indirect ventilation via air taken from rooms adjoining the one to be ventilated is also permitted, as long as all applicable legislation is satisﬁ ed.

/ Ventilation / GAS

LOCATION AND VENTILATION

Gas cooking appliances must always have the corresponding combustion products extracted via cooker hoods connected to a ﬂ ue or directly to the outside (see Figure A). If it is not possible to install a cooker hood, the use of an extractor fan installed in a window or ducted directly outside is permissible; this must be connected so as to come on when the appliance is operational (see Figure B), and all ventilation requirements laid out in applicable legislation must be met.

CONNECTING THE APPLIANCE TO THE GAS SUPPLY

Before connecting the appliance to the gas supply, check that the data on the product identiﬁ cation label is compatible with the gas supply speciﬁ cations. When the gas is supplied from the mains, the appliance must be connected to the gas supply with rigid copper tube or via a steel hose, in accordance with applicable legislation. When the gas is supplied from a cylinder, via a compliant pressure regulator with continuouswall stainless-steel hose, it is advisable to install a special after-market adapter on the hose to facilitate connection with the hose barb of the pressure regulator installed on the cylinder.

The hose must not pass through compartments which may be ﬁ lled, and must not come into contact with moving components such as drawers. On completing installation, check for any leaks with a soapy solution, never with a ﬂ ame.

Figure A

WARNING: Remember that the appliance’s gas inlet is a male 1/2” BSPP ﬁ tting to ISO 228-1.

Figure B

/ Gas

PRECAUTIONS WHEN USING THE PRODUCT WITH LPG (BUTANE/PROPANE)

The gas taps installed on the hob must operate with liqueﬁ ed gas of controlled quality, supplied at the correct nominal pressure. This pressure must be guaranteed by a certiﬁ ed dedicated pressure regulator (not supplied with the product). The use of gas from uncertiﬁ ed reﬁ lls and/ or improper use of LPG cylinders, as well as the corresponding regulator, can invalidate the product warranty. In particular, you must avoid all situations where the gas could be polluted with residues and impurities which, when they enter the gas circuit, could irreparably damage the control components such as the taps and thermostats.

We therefore recommend:

• Using only LPG cylinders from oﬃ cial resellers

authorised by the various manufacturers

• Using the cylinders until they are empty but

without tilting or overturning them

• Regularly cleaning the ﬁ lter at the inlet to the

pressure regulator

Regulating the appliance for various gas types

Burner Gas type Pressure Nozzle

diameter

mbar 1/100mm g/h l/h kW kcal/h kW kcal/h 1/100mm

Town gas G110 8 145 - 227 1.00 860 0.3 258 27 reg

Auxiliary

Semirapid

Rapid

Natural gas G20 20 77 - 95 1.00 860 0.3 258 27 reg Butane G30 30 50 73 - 1.00 860 0.3 258 27 Propane G31 37 50 71 - 1.00 860 0.3 258 27 Town gas G110 8 192 - 397 1.75 1505 0.44 378 31 reg Natural gas G20 20 101 - 167 1.75 1505 0.44 378 31 reg Butane G30 30 66 127 - 1.75 1505 0.44 378 31 Propane G31 37 66 125 - 1.75 1505 0.44 378 31 Town gas G110 8 280 - 681 3 2580 0.75 645 42 reg Natural gas G20 20 129 - 286 3 2580 0.75 645 42 reg Butane G30 30 87 218 - 3 2580 0.75 645 42 Propane G31 37 87 214 - 3 2580 0.75 645 42 Town gas G110 8 350 - 907 4 3440 1.5 1250 65 reg

Nominal ﬂ ow rate Flow rate

Reduced

Bypass diameter

Crown

Dual Wok

Natural gas G20 20 145 - 381 4 3440 1.5 1290 65 reg Butane G30 30 101 290 - 4 3440 1.5 1290 65 Propane G31 37 101 286 - 4 3440 1.5 1290 65

Town gas G110 8

Natural gas G20 20

Butane G30 30

Propane G31 37

ext 2x250

- 953 4.2 3612 0.48 413

int 130 int 34 reg

ext 2x110

- 476 5.0 4300 0.48 413

int 70 int 34 reg

ext 2x69

334 - 4.6 4300 0.48 413

int 46 int 34

ext 2x69

328 - 4.6 3956 0.48 413

int 46 int 34

ext 65 reg

ext 65

GAS CONVERSION

WARNING!

Isolate the appliance’s gas and electricity supplies before performing any maintenance.

The gas conversion procedure involves two steps:

• Replacing the nozzles

• Burner minimum adjustment

/ Gas conversion

WARNING: After performing the above-mentioned procedures, the technician must apply the label corresponding to the new gas regulation to replace the old one. This label is contained in the bag of spare nozzles.

Step 1: Replacing the nozzles

Proceed as follows to change the burner nozzles: lift the ﬂ ame spreaders and unscrew the nozzles using a 7 mm spanner, then replace them with those required for new gas in accordance with the TABLE (each nozzle has the number indicating its diameter stamped on its body). Keep the old nozzles in case they are required in future.

Step 2: Burner minimum adjustment

Light the nozzle and turn the knob to the MINIMUM position (small ﬂ ame).

2) Remove the knob, which is simply friction ﬁ tted

to the spindle.

3) Use a small screwdriver on the gold screw next

to the knob shank (see ﬁ gure) and turn the ﬂ ow control screw to the left or right until the burner ﬂ ame is suitably regulated to the MINIMUM setting. For dual burner knobs there are two ﬂ ow control screws: screw A to adjust the inner ring, and screw B to adjust the outer ring.

4) Ensure that, when moving from the MAXIMUM

to the MINIMUM position, the ﬂ ame does not go out. WARNING: The above-mentioned regulation must only be performed for burners running on natural gas (methane): when using LPG (butane or propane), the screw must be locked all the way to the right.

/ Electrical connection / Maintenance

ELECTRICAL CONNECTION

The electrical connection must be made in accordance with applicable standards and legislation. Before connecting up the appliance, check that:

• The mains electricity supply matches the

characteristics indicated on the appliance data plate.

• The circuit wiring and outlet are equipped with

a compliant earth connection. When the oven is connected to the mains power supply via a socket:

• Wire a plug onto the power cable which

must comply with applicable standards in the

country of use; the plug (and its fuse, where

applicable) must be suitable for the rated load

speciﬁ ed on the appliance data plate. Connect

the cores of the cable in accordance with the

ﬁ gure, ensuring you follow the harmonised

wiring colour scheme: L (live/hot/phase) = brown wire N (neutral) = blue wire earth ”

” symbol = yellow/green wire

MAINTENANCE

REPLACING COMPONENTS

Isolate the appliance’s gas and electricity supplies before performing any maintenance. Contact an authorised service centre if functional components such as burners, taps and electrical components require replacement.

WARNING: If the power cable requires replacement, the installer/maintenance technician must use H05VV-F 3x0.75 mm conductor around 2 cm longer than the live and neutral wires. They must also comply with the instructions given for the initial electrical connection.

cable and leave the earth

• The power cable must be positioned in such

a way that it does not reach a temperature of

90°C at any point.

• Do not use adapters, extension leads, gang

sockets etc. as these could cause loose

contacts and overheat. When the appliance is to be hard-wired to the mains circuit:

• The circuit must be ﬁ tted with a omnipolar

circuit breaker of suitable capacity for the

appliance's rated load.

• The earth conductor must not be switched

by the breaker and must be connected to the

earthing system.

• As an alternative, an RCBO may also be used,

or RCD protection in addition to or instead of

a fuse or MCB, depending on the applicable

electrical code. WARNING: The appliance complies with the

requirements of 2016/426/EU (Gas Appliances Regulation), 2014/35/EU (Low Voltage Directive) on electrical safety, and 2014/30/EU (Electromagnetic Compatibility Directive).

DESCRIPTION OF HOBS

/ Description of Hobs

CONTROLS / BURNERS

1 Front right auxiliary burner 2 Rear right semi-rapid burner 3 Rear left semi-rapid burner 4 Front left rapid burner

CONTROLS / BURNERS

1 Front right auxiliary burner 2 Rear right semi-rapid burner 3 Rear left semi-rapid burner 4 Front left crown burner



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CONTROLS / BURNERS

1 Front right auxiliary burner 2 Rear right rapid burner 3 Central crown burner 4 Rear left semi-rapid burner 5 Front left semi-rapid burner

CONTROLS / BURNERS

1 Front right auxiliary burner 2 Rear right rapid burner 3 Central dual burner or crown burner 4 Rear left semi-rapid burner 5 Front left semi-rapid burner

CONTROLS / BURNERS







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5 4 3 2 1





1 Front right auxiliary burner 2 Rear right rapid burner 3 Rear central semi-rapid burner 4 Front central semi-rapid burner 5 Left side dual burner or crown burner

5 4 3 2 1

/ Use

USE

BURNERS AND GRATES

The ﬂ ame spreaders and burner caps must be correctly positioned in order for the hob to operate properly.

USING DUAL BURNERS (where applicable)

Dual burners oﬀ er greater ﬂ exibility, as it is possible to light both rings or just the inner ring. Turn the corresponding knob to the left to the MAXIMUM position (1). Press the knob to start the gas ﬂ ow and ignite the burner. When the burner lights, keep the knob held down for around ten seconds, then release. If the burner goes out after releasing the knob, repeat the entire operation.

In position 2 the outer ring is at the minimum setting and the ring crown is at the maximum. In position 3 the inner ring is at the maximum setting and the outer ring is oﬀ . In position 4 the inner ring is at the minimum setting and the outer ring is oﬀ .

Incorrect positioning of the ﬂ ame spreaders and caps can lead to burner damage.

The grids must be positioned in their seats inside the hob.

USING THE BURNERS

Next to each knob is an indication of which burner it operates.

Turn the knob corresponding to the selected burner to the left to the MAXIMUM position (large ﬂ ame). Press the knob to start the gas ﬂ ow and ignite the burner. When the burner lights, keep the knob held down for around ten seconds, then release. If the burner goes out after releasing the knob, repeat the entire operation. To shut oﬀ the burner, turn the knob to the right to the zero position.

Tips for optimum burner use:

• Use appropriate pans for each burner (see

table).

• When the pan boils, move the knob to the

MINIMUM position.

• Always use pans with lids.

BURNER PAN DIAMETER

(RECOMMENDED) cm

Auxiliary 12 - 14 Semi-rapid 14 - 26 Rapid 18 - 26 Crown 22 - 26 Dual 22 -26

/ Use / Cleaning

SAFETY SYSTEMS

A ﬂ ame sensor (thermocouple) is installed on each burner to prevent gas from coming out if the ﬂ ame is accidentally extinguished. If there is a blackout of the electricity supply, the hob will keep working without any danger.

MANUAL IGNITION

In the event of a power failure, the burners can be ignited manually. Turn the knob corresponding to the selected burner to the left to the MAXIMUM position (large ﬂ ame). Press down on the knob to start the ﬂ ow of gas, then bring a lighter or ﬂ ame up to the burner. When the burner lights, keep the knob held down for around ten seconds, then release.

ACCESSORIES Wok Adapter

Supplementary grid to be used on crown burners with concave-bottom cookware.

Coﬀ ee Pot Reducer

Supplementary grid to be used on the auxiliary burner for coﬀ ee pots or cookware with a diameter below 12 cm.

CLEANING THE APPLIANCECLEANING THE APPLIANC

Before performing any cleaning operation, wait for all parts to cool down and isolate the hob’s electricity and gas supply.

Cleaning the hob:

The burner heads, enamelled steel grids, enamelled caps and ﬂ ame spreaders must be regularly cleaned with warm soapy water then rinsed and dried thoroughly. Any liquid which should overﬂ ow from the cookware must always be removed with a cloth. If it is diﬃ cult to open or close one of the gas taps, do not force it! Request urgent assistance from the technical support network. Cleaning Enamelled Parts: To maintain the characteristics of the enamelled components, they should be cleaned frequently with soapy water. Never use scouring powders. Do not leave acidic or basic substances (vinegar, lemon juice, salt, tomato juice etc.) sitting on enamelled parts, and do not wash enamelled parts when they are still hot.

Cleaning Stainless-Steel Parts

Clean the components with soapy water and then dry them with a soft cloth. The shine can be maintained by periodic use of commonly available products. Never use scouring powders or pads.

Cleaning the Burner Flame Spreaders:

As they are simply resting in position, they can be cleaned simply by removing them from their seats and washing them with soapy water. Do not immerse in water or wash them under running water. After drying them thoroughly and checking that the holes are not blocked, return them to their correct position. Cleaning Glass Hobs: To degrease, use washing-up liquid and vinegar, then rinse; otherwise, clean with washing-up liquid, rinse, then pass over with a moist cloth before drying. To remove encrusted food, soak with soapy water or washing-up liquid for a few minutes. After a few minutes, rinse and wash the hob. Avoid anti-limescale, abrasive and multi-purpose products, as they will aﬀ ect the look of the glass after a while. Cleaning the Hob Grids: Do not wash the grids in the dishwasher. White residue on the grids is due to normal contact with cookware, and not indicative or defects or abrasions in the enamel.

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