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This document describes a built-in hob, a cooking appliance designed for domestic use. It emphasizes safety, proper installation, and maintenance to ensure the appliance's aesthetic and functional qualities are preserved.
The hob is a cooking appliance intended for preparing food in a home environment. It features multiple burners, each controlled by a dedicated knob on the front panel. The appliance is equipped with an electronic ignition device for lighting the burners. A safety device is incorporated to cut off the gas supply in case of accidental flame extinction, even if the gas cock is open. The hob is designed to be installed into a countertop, with specific requirements for ventilation and clearances. It can be adapted to different types of gas by replacing nozzles and adjusting primary air flow.
To operate the hob, users press and turn the burner knobs anti-clockwise to the maximum flame symbol until the burner ignites. If a burner does not light within 15 seconds, the knob should be returned to the off position, and the user should wait 60 seconds before trying again. After lighting, the knob must be held down for a few seconds to allow the thermocouple to heat up, preventing the flame from going out when the knob is released. The flame can be adjusted between maximum and minimum settings.
For optimal burner efficiency and to minimize gas consumption, it is recommended to use pans with lids and of a suitable size for the burner, ensuring flames do not extend beyond the pan's sides. Once contents boil, the flame should be reduced to prevent boiling over. Recommended cookware diameters vary by burner type: Auxiliary (12-18 cm), Semi-rapid (14-24 cm), Reduced rapid (18-24 cm), Rapid (20-26 cm), and Ultra-rapid (20-30 cm). All pans or griddles must be placed within the hob's perimeter to prevent burns or damage.
When using a griddle, it can be pre-heated on maximum power for no more than 10 minutes, and power should be reduced during cooking. Burner flames should not extend beyond the griddle's edge, and a gap of at least 150 mm should be maintained between the griddle's edge and any side wall. Griddles should not be placed over more than one burner simultaneously.
Regular cleaning and maintenance are crucial for preserving the hob's condition. Before cleaning, the appliance's heating elements must be allowed to cool down. Surfaces should be cleaned regularly after use using specific products that do not contain abrasives or chlorine-based acids. The product should be applied to a damp cloth, wiped over the surface, rinsed thoroughly, and dried with a soft or microfibre cloth.
For food stains or residues, steel sponges and sharp scrapers should be avoided as they can damage the surface. Normal, non-abrasive products and a wooden or plastic tool can be used, followed by thorough rinsing and drying. Sugary food residues should not be allowed to set on the enamel lining, as prolonged contact can cause damage.
The cooking hob grids can be removed and cleaned in lukewarm water with non-abrasive detergent, ensuring all encrustations are removed before thorough drying and replacement. It is noted that continuous contact between grids and flame may cause natural modifications to the enamel over time, which does not affect component operation.
Igniters and thermocouples must be kept perfectly clean for correct operation. They should be checked frequently and cleaned with a damp cloth, removing any dry residues with a wooden toothpick or needle.
Flame-spreader crowns and burner caps are removable for easier cleaning. They should be washed in hot water with non-abrasive detergent, encrustations carefully removed, and then thoroughly dried before being refitted. It is important to ensure the flame-spreader crowns are correctly positioned in their housings with their respective burner caps, and that the holes in the burners are aligned with the igniters and thermocouples. In case of malfunction, the holes of the outer crown should be checked for cleanliness.
The gas cocks may become difficult to turn or blocked over time. Cleaning them internally and replacing the lubrication grease should be performed by a specialized technician.
Several safety precautions are highlighted throughout the manual. During use, the appliance and its accessible parts become very hot, so heating elements should never be touched. Oven gloves should be worn when moving food. Fires or flames should never be extinguished with water; instead, the appliance should be turned off and flames smothered with a fire blanket or appropriate cover.
Children aged under 8 should be kept away from the appliance unless constantly supervised, and children must never play with it. Cleaning and maintenance should not be carried out by unsupervised children.
Flame-spreader crowns must be correctly positioned with their burner caps. Cooking zones heat up rapidly, and empty pans should not be placed on the heat to avoid overheating. Fats and oils can catch fire if overheated, so the appliance should not be left unattended when cooking with them. If fats or oils catch fire, water should not be used; instead, a lid should be placed on the pan, and the relevant cooking zone turned off.
Cooking processes should always be kept under control, with short processes continuously surveyed. Metal objects like cutlery or dishes should not be placed on the hob surface during cooking as they may overheat. Pointed metal objects should not be inserted into the appliance's slots, and water should not be poured directly on very hot trays.
Aerosols should not be used near the appliance while in use. The appliance should be switched off after use and not modified or repaired by unqualified individuals. The power cable should not be pulled to remove the plug. If the power supply cable is damaged, technical support must be contacted for replacement.
To prevent damage to the appliance, users should not sit on it, use steam jets for cleaning, or obstruct ventilation openings and heat dispersal slots. The appliance should never be left unattended during cooking with fats or oils that could overheat and ignite. Objects should not be left on the cooking surface, and the appliance should not be used to heat rooms. Spray products should not be used near the oven, and plastic cookware or containers should not be used for cooking.
Cooking vessels or griddle plates should be placed within the hob's perimeter, and all pans must have smooth, flat bottoms. Any spilled liquid should be removed immediately. Acidic substances like lemon juice or vinegar should not be spilled on the hob. Empty pans or frying pans should not be placed on switched-on cooking zones. Rough or abrasive materials, sharp metal scrapers, and cleaning products containing chlorine, ammonia, or bleach should not be used on steel parts or metallic surface finishes. Abrasive or corrosive detergents should not be used on glass parts. Removable components like hob grids, flame-spreader crowns, and burner caps should not be washed in a dishwasher.
The appliance must not be installed in a boat, caravan, or on a pedestal. It should be positioned into the cabinet cut-out with assistance. To prevent overheating, it should not be installed behind a decoration door or panel. Personal protective equipment (PPM) should always be worn during installation, maintenance, positioning, or movement. The power supply must be switched off before any operation on the appliance. Qualified personnel must carry out installation and assistance interventions according to standards. Gas connections must be performed by authorized staff. If using a hose, its length should not exceed 2 meters for steel hoses and 1.5 meters for rubber hoses, and hoses should not contact moving parts or be crushed. A pressure regulator compliant with current regulations should be used if required. After any gas connection operation, the tightening torque should be checked (10-15 Nm). At the end of installation, leaks should be checked with a soapy solution, never a flame.
Electrical connections must be performed by authorized technicians, and the appliance must be grounded according to electrical safety standards. Cables must withstand at least 90°C, and terminal board lead screws should be tightened to 1.5-2 Nm. Power cable replacement must only be done by a qualified technician.
The countertop opening dimensions must be precise, and the surrounding materials must be heat-resistant (>90°C). A minimum clearance between a ventilation hood and the cooking surface, as well as for the hob edges at the back, must be respected. If installed above an oven, a space must be left between the hob bottom and the oven top, and the oven must have a cooling fan. If installed over an empty kitchen unit or drawers, a double-layer wooden base, at least 20 mm from the hob bottom, must be installed to prevent accidental contact with sharp or hot parts.
Fixing brackets are screwed into the bottom casing to fasten the hob. For glass hobs, an adhesive seal is placed along the outer edge before assembly to prevent liquid leakage. For steel hobs, an insulating seal is used, ensuring the long front side brushes against the hole. Silicone should not be used to secure the hob as it prevents removal without damage.
Gas connection can be rigid copper pipe or continuous wall steel hose. For LPG, a pressure regulator is used with the gas cylinder. The room must have permanent air supply and adequate ventilation for gas combustion and heat/humidity removal.
Combustion products can be extracted via hoods connected to a natural draught chimney or forced extraction. An efficient extraction system requires planning by a specialist and compliance with standards. Upon completion, the installer must issue a certificate of conformity.
To adapt to different gas types, nozzles must be replaced, and primary air adjusted. This requires removing the hob top. The nozzle tightening torque must not exceed 3 Nm. Air flow is adjusted by moving the air regulator. After adjustment, the appliance must be reassembled correctly.
Minimum setting for natural or town gas is adjusted by lighting the burner, turning it to minimum, extracting the knob, and turning the adjustment screw until the correct minimum flame is achieved. The knob is refitted, and flame stability is verified. The flame should not go out when rapidly turning the knob from maximum to minimum. For LPG, the screw at the side of the tap rod is tightened clockwise all the way. After adjusting to a different gas, the gas setting label on the appliance must be replaced with the correct one.
Electrical connection requires checking grid characteristics against the identification plate. The appliance can operate on 220-240 V 1N~ using a 3 x 1 mm² three-core cable. For fixed connection, an omnipolar circuit breaker compliant with installation regulations, located near and easily reachable from the appliance, is required. For plug and socket connection, the plug and socket must be of the same type, avoiding adapters and shunts to prevent overheating and burns. The ground connection wire must be 20 mm longer than other wires.
General| Width | 60 cm |
|---|---|
| Number of burners | 4 |
| Control setting position | Front |
| Material | Stainless steel |
| Type | Gas |
| Type of gas | Natural gas |
| Ignition type | Automatic |
