OPERATION MANUAL
KLEENSCREEN FILTRATION SYSTEM
SUPPLEMENT INSTRUCTION MANUAL FOR:
Gas Fryer Models
GR35F
GR45F
GR65F
GR85F
ML-126998
ML-126999
ML-135534
ML-135535
GRD35F ML-126732
GRD45F ML-126735
GRD65F ML-126738
GRD85F ML-126741
GRC35F ML-126733
GRC45F ML-126736
GRC65F ML-126739
GRC85F ML-126742
Electric Fryer Models
ERD50F ML-135561
ERD85F ML-135563
2ERD50F
2GRD45F
ERC50F ML-135565
ERC85F ML-135567
For additional information on Vulcan-Hart Company or to locate an authorized
VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791
FORM 35616 (Nov. 2003)
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OPERATION AND CARE OF
KLEENSCREEN FILTRATION SYSTEM
SAVE THESE INSTRUCTIONS
GENERAL
The KleenScreen Filtration System filters the oil as it is pumped back to its respective tank. Valves
inside the doors under each fry tank must be set so only one tank is being drained, filtered and pumped
back at any one time.
The KleenScreen Filtration System is used on the following Vulcan Fryer Models:
Gas Fryers
Electric Fryers
GR35F
GR45F
GR65F
GR85F
GRD35F
GRD45F
GRD65F
GRD85F
GRC35F
GRC45F
GRC65F
GRC85F
ERD50F
ERD85F
ERC50F
ERC85F
ASSEMBLY
1. After unpacking, wash the filter tank, crumb basket and filter screen. Use dishwashing detergent
and warm water, or clean the components in a dishwasher. Rinse the filter tank, crumb basket
and filter screen thoroughly. Wipe components dry with a clean cloth.
2. Pull the filter drawer out.
3. Place the filter tank in the filter drawer. Hang the crumb basket from the left tank handle inside
the filter tank (Figs. 1 and 2). Position the filter screen assembly flat on the bottom of the filter
tank so the filter orifice underneath the screen fits the suction hole in the bottom of the tank (Figs.
1 and 2). Close the drawer.
4. Make sure the two O-Rings are in place inside the filter suction port (Figs. 1 and 2). As the drawer
is closed, make sure the filter suction connector fits tightly into the filter suction port (Figs. 1 and 2).
– 3 –
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CONTROLS AND COMPONENT LOCATIONS — Gas Fryers
The filter tank cover is removed to show component locations.
Fig. 1
– 4 –
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CONTROLS AND COMPONENT LOCATIONS — Electric Fryers
The filter tank cover is removed to show component locations.
Fig. 2
– 5 –
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OPERATION
WARNING: HOT FRYING COMPOUND AND PARTS CAN CAUSE BURNS. USE CARE WHEN
OPERATING, CLEANING OR SERVICING THE FRYER. USE CARE WHEN FILTERING. DO NOT
LEAVE UNATTENDED.
WARNING: SPILLING HOT FRYING COMPOUND CAN CAUSE SEVERE BURNS. DO NOT MOVE
THE FRYER WITHOUT DRAINING ALL FRYING COMPOUND FROM THE TANK.
FILTERING PROCEDURE WHEN USING LIQUID SHORTENING
1. Turn the fryer's power OFF and open the doors (Fig. 3).
NOTE: GRC and GRD models have a drain valve interlock
system built in that will automatically shut the fryer off as soon
as the drain valve is opened.
2. Slowly turn the red fryer tank drain lever counterclockwise (Fig.
5) until it stops. This allows the oil to drain into the filter tank.
NOTE: Drain and filter only one fryer tank at a time.
PL-41775-1
3. Pull the filter drawer out. Lift the filter tank cover up (Fig. 4).
Fig. 3
Make sure filter tank and parts are properly assembled (pages 3 through 5).
4. Add 8 ounces of diatomaceous earth to the filter tank. Agitate to mix the diatomaceous earth
and shortening. Replace the filter tank cover. Slide the filter drawer back into place.
PL-41601
PL-41602
Fig. 4
Fig. 5
5. Turn the filter power switch ON (Fig. 6). The red pilot light in the filter power switch comes on.
PL-41603
PL-41604
Gas Fryer
Electric Fryer
Fig. 6
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6. To start filtering, pull out the red filter valve handle (Fig. 7) of the fryer tank to be filtered. Use
a brush to remove all the residue from the bottom of the tank into the drain tube. Let the oil
recycle for 1 to 3 minutes, flushing residue from the tank bottom into the filter.
PL-41606
PL-41605
Gas Fryer
Fig. 7
Electric Fryer
7. Close the red fryer tank drain lever (Fig. 8) by turning the
lever clockwise until it stops. The fryer tank will now
refill.
8. After filtering is complete (all oil is removed from the filter
tank and air bubbles should appear in the fryer tank),
push in the red filter valve handle completely (Fig. 9).
PL-41607
Fig. 8
PL-41608
PL-41609
Gas Fryer
Electric Fryer
Fig. 9
9. Turn the filter power switch OFF (Fig. 6).
10. Close the fryer doors.
FILTERING PROCEDURE WHEN USING SOLID SHORTENING
1. Follow the fat melt procedure discussed in the INSTRUCTION manual supplied with your fryer.
WARNING: Do not set a complete block of solid shortening on top of an electric fryer's heating
elements. Doing this may damage the elements and increase the potential for shortening flash
fire. If solid shortening is to be used in an electric fryer, remove the baskets and crumb screen(s),
pack the bottom of the tank completely with solid shortening, lower the elements and then pack
the shortening COMPLETELY around over top of the elements. Lay crumb screen(s) in the tank
on top of the packed shortening. Follow the Fat Melt instructions in the ER Fryer installation &
operation manual. Once all shortening has been melted and the fryer has met the set
temperature, fill baskets and resume frying.
– 7 –
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2. Set the fryer thermostat at 350°F (177°C).
3. Once shortening has melted, stir oil to eliminate
solid shortening in the cold zone (Fig. 10). All
solid shortening must have melted completely.
- MAX -
- MIN -
- MAX -
- MIN -
4. Allow the fryer to idle at 350°F (177°C) for
10 minutes, if filtering from a cold start.
5. Turn the fryer off. Make sure filter tank and
parts are properly assembled (pages 3
through 5). Make sure the filter drawer is
completely closed before opening the drain
valve. Open the drain valve and drain the
shortening into the filter tank. Allow hot
shortening to stand in the filter tank for
approximately 6 to 10 minutes. Then proceed
with steps 4 through 10 under Filtering
Procedure when Using Liquid Shortening on
pages 6 and 7.
COLD ZONE
COLD ZONE
PL-56013
Fig. 10
FILTERING TIPS
• If filtering at the end of the day, make sure all the oil is returned to the fryer tank.
• Open the filter drawer approximately 1" to allow any oil in the return line to run back into the filter
tank. This will take about 30 seconds to complete.
• Close the filter drawer. If solid shortening is used, follow the "Melt" procedure the next morning.
PERIODICALLY REMOVE EXCESS DEBRIS FROM THE FILTER
The following operation is required after filtering one or more batches, as needed:
1. Pull the filter drawer out and remove the filter tank cover from the filter tank.
2. Remove the crumb basket and empty any debris into the trash.
3. Remove the filter screen assembly.
4. Scrape debris from the bottom of the filter tank and from the screen assembly into the trash.
NOTE: Scrape debris away from suction hole to avoid compacting debris in hole.
5. Reinstall the filter screen assembly and crumb basket.
6. Replace the filter tank cover. Close the drawer.
FLUSH AND DISCARD
1. Turn the fryer power OFF.
2. Make sure filter tank and parts are properly assembled
(pages 3 through 5). Open the fryer tank drain lever
(Fig. 11) of the fryer tank that holds oil that is to be
discarded.
PL-41612
Fig. 11
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3. While holding the discard hose at the base of the fitting, use your free hand to slide the collar
away from the end of the female fitting (Fig. 12). Align the male and female parts of the quick
disconnect line and push the hose onto the male connector discharge fitting. Release the collar.
Pull the discharge hose away from the fryer to make sure discharge hose is fully inserted and
locked.
PL-41613
PL-41614
Gas Fryer
Electric Fryer
Fig. 12
4. Turn the filter power switch ON (Fig. 13).
PL-41615
PL-41616
Gas Fryer
Electric Fryer
Fig. 13
5. Place the nozzle in a suitable discharge container. To start the pump, pull the white discard valve
handle out (Fig. 14); the oil begins to flow through the discard hose. If the discharge container
is not large enough for the entire amount, stop the pump by pushing in the white discard valve
handle, empty the container and resume. When the last of the oil is in the discharge container,
stop the pump by pushing in the white discard valve handle, turn the filter power switch OFF and
disconnect the discharge hose (Fig. 15).
6. Clean the filter drawer following the instructions on page 10.
PL-41617
PL-41618
Fig. 14
Fig. 15
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MAINTENANCE
WARNING: HOT FRYING COMPOUND AND PARTS CAN CAUSE BURNS. USE CARE WHEN
OPERATING, CLEANING OR SERVICING THE FRYER. USE CARE WHEN FILTERING.
WARNING: SPILLING HOT FRYING COMPOUND CAN CAUSE SEVERE BURNS. DO NOT MOVE
THE FRYER WITHOUT DRAINING ALL FRYING COMPOUND FROM THE TANK.
WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT/
TAGOUT PROCEDURES.
CLEANING THE FILTER DRAWER
1. Pull the filter drawer out and remove the filter tank cover.
2. After filter parts have cooled, lift the filter tank out of the
drawer (Fig. 16). Set the filter tank aside.
3. Lift the drawer from the drawer slides (Fig. 17) and set
the drawer aside.
4. Lift the drawer slides up and off the slide guides (Fig. 18).
PL-41619
5. Carry the parts to the sink area for cleaning.
6. Remove the crumb basket from the filter tank.
Fig. 16
7. Remove and disassemble the filter screen assembly for
cleaning (Fig. 19). The top left side of the assembly has
a metal latch and bar. Slide the metal latch off the bar. Lift
the bar up to allow access to the internal filter.
NOTE: The filter screen assembly should be cleaned daily. The
filter screen assembly parts may be placed in a dishwasher or
cleaned using a sink spraydown hose with dish detergent.
However, periodic fryer boil-out cleaning is recommended to
remove thick grease residue on the filter screen assembly. This
residue may hinder the filtration process. If you notice that the oil
filter return time is taking longer than 4 minutes to complete the
filter cycle, boil-out of the screen assembly is recommended.
This can be performed as part of the normal fry tank boil-out
procedure (see Fryer Boil-Out Instructions on page 11).
PL-41620
Fig. 17
PL-41621
Fig. 18
8. Wash all parts of the filter, including the drawer and
drawer guides, in normal dishwashing detergent. All
parts are dishwasher-safe and can be cleaned in a
commercial dishwasher instead of by hand.
9. Rinse parts thoroughly and wipe dry with a clean cloth.
All parts must be completely dried before reuse.
10. Reinstall all removed filter parts before operating the
filter system.
PL-41622
11. The top cover must be replaced before operating this
system.
Fig. 19
– 10 –
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FRYER BOIL-OUT INSTRUCTIONS
CAUTION: Do not run water or boil-out solution through the filter motor or pump. Do not use
the filter during boil-out or cleaning of the fryer.
Before cleaning the fryer, read the entire cleaning instructions provided by the cleaning product's
manufacturer. Some cleaners will require a boil-out procedure at boiling temperature, and some will
not. If your cleaning product company calls for a boil-out procedure, follow their procedures after
performing steps 1 through 5. If boil-out is required, but no procedures are stated, follow steps 1 through
23.
1. Turn off the fryer that is to be boiled out.
2. Remove and set aside the filter drawer assembly.
3. Drain all shortening from the fryer to be boiled out. Drain old
shortening into a suitable disposal container and discard.
4. Remove the filter screen assembly from the filter drawer vessel and
separate the screen into two parts (see page 10).
PL-41623
5. Place the two separated parts of the screen assembly into the fryer
Fig. 20
tank that is to be boiled out.
6. Following the cleaning instructions on page 10, clean the remaining drawer assembly parts.
7. Place a stock pot under the drain manifold opening (Fig. 20).
8. Close the drain valve and fill the fryer tank with hot water to the - Max - fill line.
9. Set the fryer thermostat to 210°F to 225°F (99°C to 107°C) and turn the fryer on.
10. Allow water to simmer.
11. Add boil-out solution and mix thoroughly. Do not boil solution. This may cause the fryer to boil
over. Simmer water to dissolve solution completely and achieve the maximum cleaning benefit.
12. Allow the fryer to simmer for 10 to 15 minutes. Watch the fryer to make sure it does not boil over.
During the boil-out process, scrub the tank using the cleaning brush provided with the fryer. To
avoid damage to the tank finish, do not use a metal brush or scouring pad.
13. Turn the fryer off and allow the boil-out solution to remain in the fry tank for another 10 to 15
minutes. The hot boil-out solution will continue to break down oil residue at water temperatures
as low as 180°F (82°C).
14. Open the drain valve.
15. Drain the boil-out compound into the stock pot below the drain
manifold opening (Fig. 21). Monitor the contents of the stock pot.
The full content of the fryer tank may not fit into the stock pot. If not,
close the drain valve when the stock pot is almost full and discard
the boil-out solution.
PL-41625
16. Replace the emptied stock pot below the drain manifold opening,
Fig. 21
and repeat steps 14 and 15 as many times as needed.
17. Close the drain valve and fill the tank with clean, hot water to the - Max - fill line; drain and discard
as in steps 14 and 15.
– 11 –
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18. After rinsing the tank, close the drain valve and refill the tank with hot water to the - Max - fill line.
19. Add 1 cup (0.2 L) of vinegar per 20 lb (9 kg) of fryer capacity to neutralize any caustic ingredients
remaining from the boil-out solution.
20. Turn the fryer on and slow boil for a few minutes with the thermostat set at 210°F to 225°F (99°C
to 107°C).
21. Turn the fryer off and drain the tank (see steps 14 and 15).
22. Close the drain valve and rinse the tank again with hot water.
23. Drain fryer tank (see steps 14 and 15) and remove. Dry and reassemble the filter screen
assembly. Thoroughly dry the fryer tank. Close the drain valve. Reinstall the entire filter drawer
assembly to the fryer. Fill the tank to the - Min - fill line with fresh oil or shortening.
TROUBLESHOOTING
NOTE: If using solid shortening, after all filtered oil has been returned to the fryer tank and the filter
power switch is off, open the filter drawer approximately 1 inch. This allows the remaining shortening
in the line to drain into the filter tank to prevent possible clogging as the shortening cools and solidifies.
SYMPTOM
POSSIBLE CAUSE
SUGGESTED CORRECTIVE ACTION
Oil not
filtering or
discarding;
1. Drawer not closed all the way.
2. Filter screen is plugged.
3. Clog in filter system line(s).
1. Close the drawer.
2. Clean filter screen.
3. Call service.
pump motor 4. Shortening is below 300°F (149°C) and too thick. 4. Increase temperature above 300°F (149°C).
is on. 5. Mechanical problem with return or discard valve. 5. Call service.
6. Pump is inoperative.
6. Call service.
7. Discard hose connection not fully engaged.
7. Remove and reconnect the hose.
Pump motor 1. Check 120 V power connection.
1. Plug unit into 120 V receptacle.
2. Turn switch on.
3. Pull out discard valve handle.
4. Call service.
is not
2. Filter power switch is not turned on.
3. Discard valve handle is not extended.
4. Pump motor not working.
running.
SERVICE
Contact your local Vulcan Service Office for any repairs or adjustments needed on this equipment.
– 12 –
FORM 35616 (Nov. 2003)
PRINTED IN U.S.A.
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