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29
29
ADJUSTMENT OF THE THERMOSTAT MINIMUM SETTING
The operation is performed with the oven installed in the fixture and after
qualified personnel has completed the electrical and gas connections.
This measure is necessary whenever the type of gas is changed natural
gas to ULPG so as to guarantee a minimum temperature close to 150°C.
Follow the procedures below:
• Open the oven door
• Remove the floorplate
• Turn on the oven at maximum
temperature and light the burner.
• When ignition has taken place, close
the door.
• Position the knob of the thermostat
at a temperature of approx. 150°C.
• Remove knob “a”.
• Insert a screwdriver in hole “b”, parallel to the stem of the thermostat
and adjust the by-pass until a reduced but stable flame is obtained.
This operation must be carried out with the oven door closed.
• Use a slotted screwdriver on the by-pass screw.
• When using ULPG, the by-pass adjustment screw must be fully
tightened.
After having adjusted the burner, check that the flame remains at a
minimum by following the procedures below:
• Turn the knob from the minimum to the maximum position 3 times.
• Open and close the oven door continuously 4/5 times, neither too
quickly nor too slowly.
• If the flame goes out, adjust the by-pass once again (by slightly
increasing the minimum setting).
Once these operations have been completed (injectors replaced, air and
minimum setting adjusted), turn the oven off and up-date details on the
label present on the oven door frame, indicating the new gas used.
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