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11

Removing the hob plate

1.

Remove the pan support, the handles and burner parts.

2.

Loosen the hob plate burner connection screws.

3.

For models with electric hotplate (optional): After loosening 

the burner screws, turn the hob over and remove the 

connection nut for the electric hotplate.

4.

Grip the hop plate at the sides with both hands and lift it 

carefully.

Replacing the bypass nozzles

1.

Use a flat-blade screwdriver (no. 2) to unscrew the bypass 

nozzles. Remove the bypass nozzles.

2.

Select the appropriate new bypass nozzles from the table in 

accordance with the gas type to which you are converting. 

See the section 

"Technical data – Gas"

.

3.

Check that the seals on the bypass nozzles are seated 

correctly and work properly. Only use bypass nozzles with 

absolutely faultless seals.

4.

Insert the new bypass nozzles and tighten them securely. 

Ensure that all bypass nozzles have been fastened to the 

correct taps.

5.

During this phase, you must carry out a leak test. See the 

section 

"Leak test"

.

Installing the hob

Install in reverse order.

1.

 Ensure that the cables are not damaged and the 

connections do not come loose.
Slowly insert the ignition group.

2.

Slowly place the hob onto the burners. Attach the burner 

screws from the hob.

Caution!

In doing so, ensure that ignition plug and thermal element 

seals do not fall under the hob. 

3.

For versions with an electric hotplate (optional): After you 

have screwed in the burner screws, turn the hob around and 

attach the terminal nuts for the electric hotplate.

After the bypass nozzles have been adjusted and replaced

1.

Insert the lower parts of the burner in the relevant position 

and insert the ignition plugs into the corresponding openings 

beside the lower parts of the burner. Place the enamelled 

burner lids (note the sizes) onto the centre of the appropriate 

lower parts of the burner.

2.

Refit the pan support grids or wire racks.

3.

Fit the control knobs carefully.

4.

At this stage, you must check the burning behaviour of the 

gas burners. See the section "

Safe burning behaviour

".

5.

Check whether the appliance is functioning correctly.

Summary of Contents for G20

Page 1: ...01 290595 Ú Installation instructions Gas hob ...

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Page 3: ...r home use only not for commercial or professional use This appliance cannot be installed on yachts or in caravans The warranty will only be valid if the appliance is used for the purpose for which it was designed After connecting the appliance check that the local conditions type of gas and pressure are compatible with the appliance settings The permissible appliance settings can be found on the ...

Page 4: ...work surface Installation of appliance Note Wear protective gloves to fit the hob Remove the pan support handles burner cap and burner heads Turn the appliance over carefully and place it on a soft cloth Make sure that the ignition parts are not damaged The adhesive seal provided prevents leaks Adhere it to the work surface around the cut out It must be adhered around the edge of the area cut out ...

Page 5: ... waste gas main All ventilation regulations must be observed Caution The gas connection must be made via a fixed i e not mobile connection gas line or via a safety hose Caution If using the safety hose ensure that the hose is not trapped or crushed The hose must not come into contact with hot surfaces Caution The gas connection must have an easily accessible locking device Safety information The n...

Page 6: ...ction If the safety earth terminal does not comply with regulations safety against electrical hazards is not guaranteed Caution You must use a H 05 W F type cable or equivalent for the appliance connection Connection for models with mains cable without plug optional Caution Appliances fitted with three core cables must be earthed Connect the wires with the mains cable according to the following co...

Page 7: ... connecting device for example a hose clamp The hose must be short and completely leak tight The hose can have a maximum length of 1 5 m Observe the current guidelines The gas hose must be replaced at least once a year Fit the flexible safety gas hose and use a screw connection or a cable clamp to tighten it securely After establishing the connection carry out a leak test See the section Leak test...

Page 8: ...burner valves must either be replaced or screwed in fully Numbers are printed on the nozzles indicating their diameter Further information about the gas types suitable for the appliance as well as the corresponding gas nozzles can be found in the section entitled Technical properties gas After the conversion After the appliance has been converted to a different gas type you must perform a leak tes...

Page 9: ...blished via a gas pipe or via a flexible safety gas hose with threaded connections at both ends Replace the gas connection pipe in the appliance with a natural gas adaptor First loosen the screw connection from the flexible safety gas hose if available or loosen the cable clamp and disconnect this from the appliance Figure 1 Remove the connecting piece held using a size 13 key from the appliance s...

Page 10: ...lade screwdriver no 2 through the drain holes ensure that you do not damage the cables and tighten the bypass nozzles as far as they will go For designs that do not have direct access to bypass nozzles optional To reach the bypass nozzles you must remove the hob See section Removing the hob After the hob has been removed remove the ignition group from the taps The bypass nozzles must then be tight...

Page 11: ...st carry out a leak test See the section Leak test Installing the hob Install in reverse order 1 Ensure that the cables are not damaged and the connections do not come loose Slowly insert the ignition group 2 Slowly place the hob onto the burners Attach the burner screws from the hob Caution In doing so ensure that ignition plug and thermal element seals do not fall under the hob 3 For versions wi...

Page 12: ...be checked using your finger or a suitable device 3 Spray the nozzle in the burner to be checked with a leakage spray 4 Push the control knob and turn it anti clockwise This supplies the nozzle with gas If small bubbles or foam form indicating a gas leak follow the instructions in the section entitled In the event of a gas leak Correct flame formation Burner The burning behaviour and soot formatio...

Page 13: ... Gas flow at 15 C and 1013 mbar g h 127 G20 G25 G30 Gas pressure mbar 20 25 29 Nozzle mm 1 15 1 28 0 85 Bypass nozzle mm 0 39 0 39 0 39 Input power max kW 3 3 3 Input power min kW 0 50 0 50 1 3 Gas flow at 15 C and 1013 mbar m h 0 286 0 333 Gas flow at 15 C and 1013 mbar g h 218 G20 G25 G30 Gas pressure mbar 20 25 29 Nozzle mm 1 03 1 04 0 68 Bypass nozzle mm 0 61 0 61 0 61 Input power max kW 3 3 3...

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