2.6INSTRUCTION TO USER
After installing and commissioning appliance, hand
User Instructions to user or purchaser and ensure
that the person(s) responsible understands the
instructions for lighting, cleaning and correct use of
the appliance. Particular emphasis should be given to
safe operation of the drain valve. It is important to
ensure that location of gas isolating cock is made
known to user and that procedure for operation in
event of an emergency be demonstrated.
SECTION 3 - SERVICING
and CONVERSION
Important
Before attempting any servicing, turn off isolating
cock and take steps to ensure that it is not
inadvertently turned on.
AFTER ANY MAINTENANCE TASK, CHECK THE
APPLIANCE TO ENSURE THAT IT PERFORMS
CORRECTLY AND CARRY OUT ANY NECESSARY
ADJUSTMENTS AS DETAILED IN SECTION 1.
After carrying out any servicing or exchange of gas
carrying components -
ALWAYS CHECK FOR GAS SOUNDNESS!
3.1 CONVERSION PROCEDURE CHECK LIST
To convert from NATURAL to PROPANE GAS
Change injectors
Remove governor and adjust for new inlet pressure
Change data plate
To convert from PROPANE to NATURAL GAS
Change injectors
Install governor and adjust inlet pressure accordingly
For detailed procedures, refer to appropriate sections
of this document
Change data plate
3.2 ACCESS TO GAS CIRCUIT COMPONENTS
Access can be gained by opening door at front of
appliance. On G350/12 model (double pan), the
circuit components associated with a particular pan
are mounted on same side of support box as pan
itself.
3.3 BURNERS
Burners should be cleaned periodically to maintain
maximum performance.
3.3.1 Main Burner
To Remove
a) Remove burner pipe by unscrewing compression
fittings at each end.
b) From underneath the burner, remove fixings that
secure pilot bracket to burner. Ease pilot burner
assembly clear of burner by moving it slightly
downward.
c) Remove four screws securing burner support
straps to fryer body. Thus allowing burner to be
manipulated clear.
d) Replace in reverse order. Check all connections
for gas soundness.
3.3.2 Pilot Burner Assembly
To Remove
a) Remove thermocouple and pilot supply pipe from
pilot assembly, take care not to lose injector that
will be removed with union nut.
b) Disconnect spark ignitor lead at pilot.
c) Remove two hex nuts securing pilot bracket to
lower side of burner and remove pilot burner
complete with bracket.
Replace in reverse order, ensuring that pilot injector
is correctly located in annular groove in compression
nut. Check all connections for gas soundness.
3.4 INJECTORS
3.4.1 Main Injector
To Remove
The injector can be removed without the necessity for
removing the burner.
a) Using a 16mm open ended spanner, reach inside
burner air entry and engage spanner on hex body
of injector.
b) Slacken injector, reach inside and completely
unscrew by hand.
If injector needs cleaning, soak it in a suitable solvent.
Do not use metal objects to clear it.
3.5 FLAME FAILURE THERMOCOUPLE
To remove thermocouple from pilot assembly, undo
split nut and withdraw.
To disconnect overheat limit device from circuit, pull
off spade connections at interrupter.
To disconnect thermocouple from valve, undo hex nut
at valve body.
3.6PIEZO IGNITER/SPARK ELECTRODE
3.6.1 Piezo Igniter
To remove piezo unit, pull off lead at rear then
remove fixing nut at rear of unit.
3.6.2 Spark Electrode
This is an integral part of pilot burner assembly.
To Replace
a) Remove thermocouple.
b) Remove nut securing lead.
c) Undo gland nut fixing electrode to pilot burner
body.
d) Remove electrode by withdrawing downward.
