GILES GBF-35, Operation & Service Manual

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The following explains the process for filtering/reconditioning used cooking oil with the on ­ board Oil Filtration
System . This system circulates oil through filter media/filter aid in the Filter Pan and back to the fryer vat.
Routinely performing this procedure can increase useful life of cooking oil by as much as 50%.
The controller has a configurable FORCE FILTER feature, which can be set to force operating personnel to filter oil
after a preset number of cooking cycles have been completed. The feature is enabled & configured in user settings ,
Section 4.01.8:
• FILTER COUNT ­ 1 to 20 ... Factory default is 4. The number of cook cycles allowed before Force Filter is
activated. Controller counts a cook cycle run as (1), regardless of whether one or both baskets are dropped.
• FORCE FILTER ­ [ON] or [OFF] ... Factory default is [ON].
[ON] = After completing number of cook cycles equal to FILTER COUNT , alarm sounds & message “ALARM ‐
MUST FILTER OIL” is displayed on upper controller display . Fryer enters FILTER MODE ... pressing [ALARM]
key silences alarm. Fryer is disabled from continued operation until the filter process is properly completed.
[OFF] = After completing number of cook cycles equal to FILTER COUNT , alarm sounds & messuage “ALARM ‐
FILTER OIL” is displayed on upper controller display ... pressing [ALARM] key silences alarm. Fryer returns to
READY state & you can continue cooking operations, however this alarm will be issued after every subsequent
cook cycle until the filter process is properly performed.
• FORCE FILTER SNOOZE ­ [ON] or [OFF] ... Factory default is [OFF].
Effective only when FORCE FILTER is [ON].
[ON] = Allows one (1) additional load of product to be cooked after FILTER COUNT has been reached ... after
the additional cook cycle, FILTER MODE is activated & fryer is disabled.
[OFF] = No additional cook cycle is allowed.
In addition to the global FORCE FILTER , each Menu Item preset has an available FISH FILTER setting. If this
parameter is turned [ON] it overrides the global setting & fryer enters FILTER MODE after cooking only (1) batch of
the particular Menu Item . This feature will typically be used for seafood items where it is desirable to minimize the
possibility of flavor transfer. See Section 4.01.5.1, Editing a Menu Item Preset for more detail.
54
Fryer Operation
GBF − 35 / GBF − 50 Fryers
1. The process for topping
­ off vat using a bulk system is basically the same as using an on ­ board.
2. On unit being topped ­ off, place the
OIL RETURN VALVE handle in the [FILL POT] position. On banked systems,
the valves in all other cabinets must be in the
[CLOSE] position .
3. Press & hold the
ADD OIL control panel push ­ button switch . The bulk system pump should start delivering fresh
oil & oil level in vat should begin to rise. Pump will only run while button is being pressed
... continue holding
button & observe filling ... release switch when level reaches the [FULL]
mark.
4. f the amber HEAT light turns ON while adding, stir oil until the light turns OFF to ensure that the total volume of
oil is at the cooking temperature setpoint & is ready for the next load.
NOTE: Oil fill ports are located in vat bottom ... if vat is over half full, there may be no visible indication of oil
flow into vat except for rising oil level. Should the bulk pump stop while pushbutton is being pressed, the system
is possibly equipped with a high
‐ pressure safety interlock which has detected excessive pressure & shutdown
pump to avoid damage. Confirm that proper FILL valve is open, check plumbing for blockages, etc.
Lack of oil flow may indicate that the bulk oil supply is empty ... check that first!
4.03 Maintaining Oil Level w/Optional Oil Top − Off Systems − continued
4.04 Filtering Used Cooking Oil
Continued on Next Page
B. Using a Bulk Fresh Oil Supply System ‐ continued: