Commissioning, To adjust the gas rate

Commissioning

When the hob has been fully installed it will be necessary to check the minimum flame setting.To do this, follow the pro- cedure below.

Turn the gas tap to the MAX position and ignite.

Set the gas tap to the MIN flame position then turn the control knob from MIN to MAX several times. If the flame is unstable or is extinguished follow the procedure below.

Procedure:

Re-ignite the burner and set to MIN. Remove the control knob.

To adjust, use a thin bladed screwdriver and turn the adjustment screw (see diagram) until the flame is steady and does not extinguish, when the knob is turned from MIN to MAX. Repeat this proce- dure for all burners.

Pressure Testing

	Remove left hand pan support and front left burner	Minimum adjustment screw
	cap and crown.	Minimum adjustment screw
	cap and crown.

Fit manometer tube over the injector.

Turn on the burner gas supply and ignite another burner.

The pressure reading should be nominally 20mbar and must be between 17 mbar and 25mbar.

Turn off the burner supplies.

Conversion from Natural Gas to LPG

It is important to note that this model is designed for use with natural gas but can be converted for use with butane or propane gas providing the correct injectors are fitted.The gas rate is adjusted to suit.

Proceed as follow

•Ensure that the gas taps are in the 'OFF' position

•Isolate the hob from the electrical supply

•Remove all pan supports, burner caps, rings, crowns and control knobs.

•With the aid of a 7mm box spanner the burner injectors can then be unscrewed and replaced by the appropriate LPG injectors.

To adjust the gas rate

With the aid of a thin bladed screwdriver completely tighten down the by pass adjustment screw. Upon completion stick the replacement rating plate on the under side of the hob.

IMPORTANT

The replacement/conversion of the gas hob should only be undertaken by a competent person.

JLBIGH702 specifications

The John Lewis JLBIGH702 is a premium built-in gas hob designed to elevate your cooking experience while adding a touch of sophistication to your kitchen. Known for its combination of functionality and style, this hob is a favorite among culinary enthusiasts and home chefs alike.

One of the key features of the JLBIGH702 is its powerful burners. This model includes four gas burners, providing ample cooking zones for preparing multiple dishes simultaneously. The burners are designed to deliver high heat for rapid boiling while also allowing for precise low-temperature simmering, making it versatile for all cooking styles.

The hob's built-in design not only optimizes space but also enhances the overall aesthetics of your kitchen. Constructed from durable stainless steel, the surface is both elegant and easy to clean. The robust build ensures longevity, while the smooth finish adds a contemporary look to your kitchen decor.

Safety is a significant consideration in the design of the JLBIGH702. The hob is equipped with flame failure devices, which automatically shut off the gas supply if the flame goes out. This feature provides peace of mind during cooking, ensuring a safer environment for you and your family.

Ease of use is seamlessly integrated into the design, with simple controls that allow for quick adjustments to the flame levels. The user-friendly knobs are conveniently placed for easy access, making it simple to vary the heat while cooking. Moreover, the hob is compatible with both natural gas and LPG, making it adaptable for various kitchen setups.

The JLBIGH702 is engineered for efficiency, contributing to lower energy consumption without compromising performance. It supports rapid heat-up times, allowing you to spend less time waiting and more time enjoying your culinary creations.

In addition, the hob features a wok burner, designed specifically for high heat cooking. This specialized zone provides an intense flame, perfect for stir-frying, allowing the user to achieve authentic Asian-inspired dishes.

In summary, the John Lewis JLBIGH702 built-in gas hob offers an ideal blend of power, safety, and style, making it an indispensable tool for any kitchen. Its advanced features, user-friendly design, and robust nature are sure to satisfy both novice cooks and experienced chefs, making cooking a delightful experience.