User manual BOSCH HGG222120Z

[. . . ] en Instructions for connecting and converting your appliance to gas (For authorized service technicians only) General Information . . 3 4 5 5 7 9 Natural Gas (NG) connection . 12 Adjusting or replacing the burner bypass nozzles (small flame setting) . 13 Replacing the oven injector function with gas (optional) . [. . . ] The bypass nozzles must be tightened to the limit stop. Then you must perform steps 17 to the end. For models with gas oven (option): to reach the bypass nozzle underneath the burner tap (or burner cup), you have to remove the front panel. The oven burner bypass nozzle must be tightened to the limit stop. Then, you must perform steps 17 to the end. If the appliance is to be converted from liquefied gas (LPG: G30, G31) to natural gas (NG: G20, G25), or if it is being converted from natural to liquefied gas: All of the appliance's bypass nozzles must be replaced. If the appliance has a cover plate, remove it. To do so, grasp the cover plate on both sides when it is open, and pull upwards. The cover plate will be lifted out of its brackets. 5. Remove pan supports or racks and individual gas burner parts. 14 6. Unscrew the two screws (T20) on the front right and left of the hob. Do not remove the plastic parts underneath. For models with a wok cooking zone (option): unscrew the 4 (T20) screws (M4) in the wok cooking zone. 8. Grasp the hob at the front and swivel it upwards by max. Secure the hob with the profile bar, which you should place vertically on the front burner attachment. 9. Remove the plastic covers from the right and left front profiles. Make sure that you do not damage or scratch these covers when removing them. Unscrew the screws (T20) underneath. 10. Unscrew the two screws (T15) (M4) that you see once the switches have been removed. 15 11. Grip the front panel firmly with both hands and slowly pull it upwards. Then carefully pull the panel forwards to remove. Make sure that you do not damage the lines or loosen the connections. 12. Unscrew the bypass nozzles with a screwdriver (no. Remove the bypass nozzles. 13. Use the table to determine the new bypass nozzles to be used after conversion to the other gas type. See the section "Technical data gas". [. . . ] Push the burner button and turn it in an anticlockwise direction. If air bubbles appear on the foam surface, apply the procedures set out above. Checking the burner injectors Checking the by pass injectors 21 Checking the injector for the gas burner at the bottom of the oven (optional) Turn on the closing mechanism of the gas connection. Close the hole of the burner injector to be checked with your finger or use a special apparatus carefully. Push the oven setting adjustment button and turn it in an anticlockwise direction. [. . . ]