Bertazzoni M91 Installation Manual download pdf (Page 4)

gas leaks. The fixed consumer piping outlet should be at approximately the same height as the cooker connection point,

pointing downwards and approximately 200mm - 300mm in from the left hand side of the cooker. The hose should be

clear of the floor when the cooker is in the installed position. A hose restraint chain should be anchored to the wall to

prevent strain on the hose connections when the cooker is pulled forward.

Fit the supplied gas connectors as shown in Fig. 10 for your installation gas type. The gas inlet has a 1/2" BSP male

thread. When making the connection, take care not to apply excessive stress by counterbalancing tightening force.

Ensure that the available gas supply is the same as the gas type label affixed near the gas connection point. If not,

contact Bertazzoni for a Gas Conversion Kit.

Natural Gas

The natural gas regulator supplied must be fitted for natural gas. Ensure the arrow on the regulator points towards the

direction of the gas flow. Commissioning Procedure - The test point pressure must be adjusted to 1.00 kPa with the Wok

Burner (both inner and outer), 1× Semi Rapid and Rapid Burner operating on maximum flame.

Propane (LPG)

Fit the LPG test point assembly (supplied in the gas conversion kit). An AGA Approved gas regulator suitable for a

supply pressure of 2.75kPa should be part of the gas tank supply.

ANTI-TILTING CHAIN/HOSE RESTRAINING CHAIN

A chain should be fitted by the installer within 50mm of the hose connection point to prevent strain on the hose when the

cooker is pulled forward. The chain should restrict the appliance movement to no more than 80% of the hose length.

After the chain is installed, check that there is no strain on the hose or gas connections when the cooker is pulled as far

forward as the chain allows.

The cooker is also supplied with two chains which are connected to the rear left and right of the appliance. The chains

should be connected to the wall directly behind the chains as low as possible to prevent the appliance from tilting

forward. If the appliance is installed between two cupboards, drill a hole on each side of the cupboards, pass the chains

through the holes and anchor the chains within each cupboard. Ensure the chain connections are strong enough to

support the weight of the appliance and taught to prevent it from tilting forward.

WARNING: In order to prevent accidental tipping of the appliance, for example a child climbing onto the open oven door,

the stabilising means must be installed. Ensure the chains are correctly anchored to prevent the appliance from tilting

forward and to prevent strain on the hose when the cooker is pulled forward.

MAKE SURE THE ANTI-TILTING CHAINS ARE TAUGHT WHEN ANCHORED TO PREVENT THE APPLIANCE

TILTING.

ADAPTATION TO DIFFERENT TYPES OF GAS FOR COOKER TYPE M6V

Before performing any maintenance operation, disconnect the appliance from the gas supply and electricity

network.

REPLACING THE NOZZLES TO OPERATE WITH ANOTHER TYPE OF GAS FOR COOKER TYPE M6V:

Follow the instructions below to change the burner nozzles on the work surface:

1) Pull out the plug from the electric outlet to avoid any type of electric contact.

2) Remove the grids from the work surface.

3) Remove the burners.

4) Unscrew the nozzles using a 7 mm spanner, and replace them (Fig.11) with those needed for the new type of gas

according to what is indicated in Table 1.

WARNING: After completing the above-mentioned replacements, the technician must adjust the burners, as

described in the paragraph below, seal any adjustment and pre-adjustment devices and apply the label on the

appliance, to replace the existing one, corresponding to the new gas adjustment. This label is contained in the

spare nozzle bag.

TABLE N°1: Adaption to various types of gas

Burner Types of Gas Pressure Nozzle

Diameter

Hourly Gas

Consumption

kPa mm. (MJ)

Auxiliary NG 1.0 0.92 4.2

LP (Propane) 2.75 0.56 4.0

Semi-Rapid NG 1.0 1.17 6,6

LP (Propane) 2.75 0.73 6,9

Rapid NG 1.0 1.55 11.5

LP (Propane) 2.75 0.98 12.3

Dual NG 1.0 0.80 3.1

Inner LP (Propane) 2.75 0.50 3.1

Dual NG 1.0 2x1.14 12.5

Outer LP (Propane) 2.75 2x0.73 13.9

1 2 3 4 5 6 7 8 9 ... 15 16

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Bertazzoni M91 Installation Manual Page 4

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