
EN - 11
Copyright © 2018, Fast ČR, a. s. 08/2018
When converting from Natural Gas to LPG ensure that the NG regulator is removed and replaced with the Test
Point Assembly. A gas regulator suitable for a supply pressure of should be part of the gas tank supply and the
test point pressure should be adjusted to the pressure according to the data plate.
Setting the minimum ame
The ame on the small output is regulated by the factory.
When the injectors have been replaced or there
are special mains pressure conditions, it may be
necessary to regulate the minimum ame again. The
operations necessary to set the minimum ame are
as following:
• light the burner ;
• turn the knob to the minimum position;
• take out the knob (and gasket if there is one);
• LPG TO NG: Use a thin blade screwdriver to turn
the by-pass screw located above left of the gas
valve, shaft as shown right. Turn gently the by-
pass screw clockwise to the end completely then turn it anti-clockwise 1 turn for the Triple ring, 7/8 turn
for the Fish, 3/4 turn for the Rapid, 1/2 turn for the Semi-Rapid and 3/8 turn for the Auxiliary.
• NG TO LPG: Use a thin blade screwdriver to turn the by-pass screw located above left of the gas valve shaft
as shown right. Turn gently the by-pass screw clockwise to the end.
• LPG TOTG: Use a thin blade screwdriver to turn the by-pass screw located above left of the gas valve, shaft
as shown right. Turn gently the by-pass screw clockwise to the end completely then turn it anti-clockwise
turn for the Triple ring, turn for the Fish, turn for the Rapid, turn for the Semi- Rapid and turn for the
Auxiliary.
• TG TO LPG: Use a thin blade screwdriver to turn the by-pass screw located above left of the gas valve shaft
as shown right. Turn gently the by-pass screw clockwise to the end.
• NG TO TG: Use a thin blade screwdriver to turn the by-pass screw located above left of the gas valve,
shaft as shown right. Turn gently the by-pass screw clockwise to the end completely then turn it anti-
clockwise turn for the Triple ring, turn for the Fish, turn for the Rapid, turn for the Semi-Rapid and turn for
the Auxiliary.
• TG to NG: Use a thin blade screwdriver to turn the by-pass screw located above left of the gas valve, shaft as
shown right.Turn gently the by-pass screw clockwise to the end completely then turn it anticlockwise turn
for the Triple ring, turn for the Fish, turn for the Rapid, turn for the Semi-Rapid and turn for the Auxiliary.
• put the knob back on and turn it quickly from the maximum position to the minimum position, checking
that the ame does not go out;
• for burners with safety valve make sure that the regulation obtained is sucient to maintain heating of the
thermocouple. If it is not, increase the minimum
THE BURNERS REQUIRE NO REGULATION OF THE PRIMARY AIR.
ABNORMAL OPERATION
ANY OF THE FOLLOWING ARE CONSIDERED TO BE ABNORMAL OPERATION
AND MAY REQUIRE SERVICING:
• Yellow tipping of the hob burner ame.
• Sooting up of cooking utensils.
• Burners not igniting properly.
• Burners failing to remain alight.
• Burners extinguished by oven door.
• Gas valves, which are dicult to turn.