Page 2 Date of issue Apr 2018
Use
Standard - F44 & F20 (without pilot)
After installation, fill the boiler with water and open the cylinder valve.
Turn the knob anti-clockwise to the star symbol and push in whilst holding a lit taper over the burner (through the lighting hole at front). After
ignition wait 3-4 seconds before releasing the knob. The boiler will then be on the high setting.
To simmer, turn the knob further anticlockwise to the small flame symbol.
When turning off the boiler, set on high (large flame) and close the valve on the cylinder. This ensures that all the gas in the pipe is burnt.
Then return knob to vertical position.
Piezo version – F44/P & F20/P (with pilot)
After installation, fill the boiler with water and open the cylinder valve.
Push in the knob and turn anti-clockwise to the star symbol. The spark will light the pilot light. Hold the knob in for a few seconds.
If it does not light then it is probably due to air in the pipe. Retry until successful.
Turn the knob further anticlockwise to the simmer setting (small flame) or full on (large flame).
When turning off the boiler, set on high (large flame) and close the valve on the cylinder. This ensures that all the gas in the pipe is burnt.
Then return knob to vertical position.
If the piezo fails then the appliance can be lit by using a taper. Push in the knob and turn anti-clockwise to the star symbol. Light the pilot with
the taper and hold in the knob for a few seconds.
In the event of a suspected gas leak immediately turn off the gas supply. Do not search for a leak with a match or naked flame. Consult
a gas safe registered engineer.
The flame should be burning mostly blue. If it is mostly yellow or orange then service. If there are sooty deposits then stop using
immediately and consult a gas safe engineer.
Maintenance
When not in use the boiler should be emptied of water and the non-drip tap left open. In hard water areas the boiler will have a build up of scale
which should be treated regularly with scale remover. If water drips from the tap when closed the top can be unscrewed (when urn is off and
empty) and the rubber washer inside, cleaned.
Spare parts available include water tap, gas valve and thermocouple.
Servicing Manual
We recommend that the appliance is serviced at least once a year, by a ualified engineer.
To remove the burner assembly for servicing firstly make sure the boiler is isolated from the gas supply and the water is drained.
Remove the black knob by pulling away from the body and undo the locking nut to free the flame failure valve.
Then undo the two screws where the gas pipe enters the body.
Turn the boiler upside down and unscrew the 4 bolts connecting the assembly to the body.
To replace the burner unit follow the above in reverse.
F20 & F44 – Replacing thermocouple
Unscrew the locking nut at the thermocouple end and break the connection to the valve.
When replacing thermocouple, care should be taken with positioning.
The tip of the thermocouple should end over the middle of the burner bar.
Do not over tighten the connection to the valve.
If in any doubt please contact the manufacturer.
F20/P & F44/P – Replacing thermocouple and electrode
Unscrew the two screws to release the locking plate.
Electrode can then be replaced (please note the alignment and replace the same)
To replace the thermocouple, break connection to the valve and replace with new one.
Do not over tighten the connection to the valve.
Replace locking plate and secure with two screws.
If in any doubt please contact the manufacturer.
Replacing Flame Failure Device
Break connections and replace with correct valve.
Please test all joints for leaks.
Replacement water taps, gas valves and sight glasses are also available from the manufacturer
J Fuller & Sons Ltd, Unit 22 Imperial Park, Rawreth Lane, Rayleigh, Essex SS6 9RS
Tel: 01268 782368 e-mail: sales@jfuller.co.uk Web: www.jfuller.co.uk