7
3.0
REPLACEMENT OF BURNER ORIFICE & LOW SETTING
3.1
Minimum Setting or Turn Down
Note: This is not possible in the UK and Ireland as the gas valves have been sealed.
This has been set at the factory but can be checked after the correct pressure has been reached.
To adjust for minimum setting, if needed, you will need a 2.5 diameter x 45mm (
7
/
64
" diameter x1
3
/
4
")
screwdriver. (In the USA, this Screwdriver is available as Part No. FB200467.)
3.1.1
Remove the knobs.
3.1.2
Ignite the burner and set the knob to its minimum position.
3.1.3
Rotate the turn down screw (down the hole in the valve spindle). Rotate slowly until a minimum
regular flame is achieved. (The flame will diminish when the screw is turned clockwise and increase
when turned counter-clockwise).
3.1.4
When the setting is right check regulation by quickly rotating the knob from the maximum to the
minimum delivery position. The flame must not go out. Replace the knob.
