INSTALLATION & OPERATIONAL MANUAL
GRD & GRC SERIES GAS FRYERS
With KleenScreen PLUS® Filtration Systems
MODELS:
1GR45D ML-136411
1GR45C ML-136414
1GR65D ML-136412
1GR65C ML-136415
1GR85D ML-136413
1GR85C ML-136416
2GR45DF ML-136424
2GR45CF ML-136431
3GR45DF ML-136427
3GR45CF ML-136434
4GR45DF ML-136430
4GR45CF ML-136437
2GR65DF ML-136425
2GR65CF ML-136432
3GR65DF ML-136428
3GR65CF ML-136435
4GR65DF ML-136662
4GR65CF ML-136663
2GR85DF ML-136426
2GR85CF ML-136433
3GR85DF ML-136429
3GR85CF ML-136436
4GR85DF ML-136665
4GR85CF ML-136666
2XG45CF ML-136563
2XG65DF ML-136638
2XG85DF ML-136565
2XG85CF ML-136566
For additional information on Vulcan-Hart or to locate an authorized parts
and service provider in your area, visit out website at www.vulcanhart.com
VULCAN-HART 3600 NORTH POINT BLVD.
DIVISION OF ITW FOOD EQUIPMENT GROUP, LLC BALTIMORE, MD 21222
WWW.VULCANHART.COM
2XG45DF ML-136562
1GR45D Shown 2XG65CF ML-136639
F-31214 REV. D (March 2008)
GRDF / GRCF SERIES GAS FRYERS
IMPORTANT FOR YOUR SAFETY
THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL
GAS EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-UP AND
ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL.
POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE
EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE
OBTAINED FROM THE LOCAL GAS SUPPLIER.
IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNITS AT THE MAIN
SHUTOFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SUPPLIER
FOR SERVICE.
IMPORTANT
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS
IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or death.
Read the installation, operating and maintenance instructions
thoroughly before installing or servicing this equipment.
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
IMPORTANT FOR YOUR SAFETY………………………………………. 2
INTRODUCTION…………………………………………………………… 4
GENERAL…………………………………………………………… 4
ORDERING PARTS………………………………………………… 4
FRYER CAPACITIES………………………………………………. 4
UNPACKING………………………………………………………… 5
INSTALLATION……………………………………………………………. 5
Clearances…………………………………………………....6
Location ………………..……………………………….…. 6
CODES AND STANDARDS……………………………………….. 6
ASSEMBLY …………..…………………………………………… 7
FLUE CONNECTION………………………………………………. 7
GAS CONNECTION…………………………………………………. 8
Quick-Disconnect for Units on Casters…………………… 8
GAS PRESSURE......................................................................... 8
TEST GAS SUPPLY………………………………………………… 8
FRYERS WITH CASTERS………………………………………… 8
LEVELING THE FRYER…………………………………………… 10
OPERATION………………………………………………………………… 10
OVER-TEMPERATURE SHUTDOWN……………………………. 10
BEFORE FIRST USE………………………………………………... 10
Cleaning…………………………………………………….... 10
FILLING TANK WITH SHORTENING…………………………… 11
BASIC FRYING INSTRUCTIONS………………………………….. 11
Fry Basket Guidelines………………………………………. 12
EXTENDED SHORTENING LIFE………………………………… 12
PROGRAMMING THE SOLID STATE CONTROL………………… 13
PROGRAMMING THE COMPUTER CONTROL…………… …… 14
FILTERING THE OIL……………………………………………. 15
DRAINING THE TANK……………………………….…… 16
BOIL OUT PROCEDURE……………………………………………….... 16
CLEANING…………………………………………………………. 17
Daily…………………………………………………………. 17
KLEENSCREEN PLUS® INSTALLATION & OPERATION MANUAL.... 16
GAS KLEENSCREEN PLUS® MODELS………………………….. 16
FILTERING INSTRUCTIONS FOR KLEENSCREEN PLUS® FRYERS… 18
GENERAL …………………………………………………………… 19
ASSEMBLY……………………………………………………………. 19
OPERATION…………………………………………………………………… 20
FILTERING PROCEDURE…………………………….... 22
FILTERING SOLID STATE CONTROLS………………………. 23
FILTERING COMPUTER CONTROLS………………………… 24
FILTERING TIP……………………………………………………. 25
REMOVING EXCESS DEBRIS FROM THE FILTER………….. 25
FLUSH AND DISCARD…………………………………………….. 25
BOIL OUT PROCEDURE……………………………………… 26
THERMAL OVERLOAD PROTECTION RESET BUTTON…… 25
MAINTENANCE………………………………………………………….. 27
FLUE VENT INSPECTION……………………………………….. 27
Service in the US and Canada…………………………………... 27
In Australia…………………………………………………………. 27
Alarms and Error Messages…………………………………….. 27
TROUBLESHOOTING…………………………………………………….. 28
Troubleshooting Chart………………………………………………. 28
TABLE OF CONTENTS
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Vulcan Fryers are produced with quality workmanship and material. Proper installation,
usage and maintenance will result in years of satisfactory performance.
Before installing the fryer, thoroughly read this manual and carefully follow all instruction.
This manual is applicable to model listed on the cover page. Procedures in this manual
will apply to all models unless specified. Pictures and illustrations can be of any model
unless the picture or illustration needs to be model specific.
Customers may order parts directly from their local authorized service center. If not
known, call Vulcan Customer Service at 800-814-7028.
To speed up your order, provide the model number, serial number, gas type, part needed,
item part number (if known) and quantity needed.
MODEL -
GMO
1GR45D 4 120,000 15.5" (39) 45-50 (21-23)
1GR45C 4 120,000 15.5" (39) 45-50 (21-23)
1GR65D 5 150,000 21.0" (53) 65-70 (29-32)
1GR65C 5 150,000 21.0" (53) 65-70 (29-32)
1GR85D 5 150,000 21.0" (53) 85-90 (39-41)
1GR85C 5 150,000 21.0" (53) 85-90 (39-41)
2GR45DF 4 120,000 31.0" (79) 45-50 (21-23)
2GR45CF 4 120,000 31.0" (79) 45-50 (21-23)
3GR45DF 4 120,000 46.5" (118) 45-50 (21-23)
3GR45CF 4 120,000 46.5" (118) 45-50 (21-23)
4GR45DF 4 120,000 62.0" (158) 45-50 (21-23)
4GR45CF 4 120,000 62.0" (158) 45-50 (21-23)
2GR65DF 5 150,000 42.0" (107) 65-70 (29-32)
2GR65CF 5 150,000 42.0" (107) 65-70 (29-32)
3GR65DF 5 150,000 63.0" (160) 65-70 (29-32)
3GR65CF 5 150,000 63.0" (160) 65-70 (29-32)
4GR65DF 5 150,000 84.0" (214) 65-70 (29-32)
4GR65CF 5 150,000 84.0" (214) 65-70 (29-32)
2GR85DF 5 150,000 42.0" (107) 85-90 (39-41)
2GR85CF 5 150,000 42.0" (107) 85-90 (39-41)
3GR85DF 5 150,000 63.0" (160) 85-90 (39-41)
3GR85CF 5 150,000 63.0" (160) 85-90 (39-41)
4GR85DF 5 150,000 84.0" (214) 85-90 (39-41)
4GR85CF 5 150,000 84.0" (214) 85-90 (39-41)
# of Heat
Tubes Each
Fry Tank
INTRODUCTION
GENERAL
ORDERING PARTS
FRYER CAPACITY
BTU / Hour
Each Fry
Tank
Width Inch
(cm) Total
System
Shortening lbs.
(kg) Each Fry
Tank
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
This fryer was carefully inspected before leaving the factory. Upon acceptance of the
shipment, the transportation company assumes full responsibility for safe delivery.
Immediately after unpacking the fryer, check for possible shipping damage. If the fryer is
damaged, save the packaging material and contact the carrier within 15 days of delivery.
Check that the following have been included:
Crumb Rack(s)
Basket Hanger(s)
Tank Brush
Adjustable Casters (4) two locking, two non-locking for freestanding fryers. Fryer
Batteries with the KleenScreen PLUS® Filtration System have casters installed
from the factory.
Drain Pipe Extension for freestanding fryers only.
Twin Fry Baskets (2) per fry tank
Cleanout Rod
Crumb Scoop
Fryer Batteries with the KleenScreen PLUS® Filtration System
• Filter Pan
• Suction Tube
• Screen Assembly
• Complimentary Pack of Micro-Filtration Envelopes
• Crumb Basket
• 6’ high temperature discard hose
Manual, Quick Start Guide(s), and Warranty
Do not use the door or its handle to lift the fryer.
Before installing the fryer, verify that the type of gas (natural or propane) agrees with the
specifications on the fryer data plate, which is located on the inside of the door panel.
Make sure the fryer is configured for the proper elevation.
Record your fryer model, device, and serial numbers for future reference in the space
provided below. This information can be found on the fryer data plate.
Fryer Model No: ___________________________
Device: ___________________________________
Serial No: ________________________________
UNPACKING
INSTALLATION
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GRDF / GRCF SERIES GAS FRYERS
Clearances
Minimum clearance from combustible construction:
6” (15 cm) from the sides of the fryer
6” (15 cm) from the back of the fryer
The fryer may be installed on combustible floors
Minimum clearance from noncombustible construction:
0” from the sides of the fryer
0” from the back of the fryer
Between the fryer and any open-top flame units:
16” (41 cm)
Allow space for servicing and operation.
Location
Install fryer in an area with sufficient air supply for gas combustion at fryer
burners.
Do not obstruct the flow of combustion and ventilation air.
Provide adequate clearance for air openings into the combustion chamber.
Do not permit fans to blow directly onto fryer.
Avoid wall-type fans, which create cross-currents within a room. Avoid
open windows next to sides or back.
The fryer must be installed in accordance with:
In the United States:
State and local codes, or in the absence of local codes, with:
National Fuel Gas Code, ANSI-Z223.1/NFPA #54 (latest edition). Copies may
be obtained from The American Gas Association Accredited Standards
Committee Z223, @ 400 N. Capital St. NW, Washington, DC 20001 or the
Secretary Standards Council, NFPA, 1 Batterymarch Park Quincy, MA 02169-
7471.
NFPA Standard #96 Vapor Removal from Cooking Equipment, latest edition,
available from the National Fire Protection Association, Batterymarch Park,
Quincy, MA. 02169-7471.
National Electrical Code, ANSI/NFPA-70 (latest edition). Copies may be obtained
from The National Fire Protection Association, Batterymarch Park, Quincy,
MA. 02169-7471.
CODES AND STANDARDS
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
In the commonwealth of Massachusetts all gas appliances vented through a
ventilation hood or exhaust system with a damper or with a power means of
exhaust shall comply with 248 CMR.
In Canada:
Local codes
CAN/CSA-B149.1 Natural Gas Installation (latest edition).
CAN/CSA-B149.2 Propane Installation Code (latest edition), available from the
Canadian Gas Association 178 Rexdale Blvd., Etobicoke, Ontario Canada
M9W 1R3.
CSA C22.1 Canadian Electric Code L4W 5N6.
The fryer must be restrained to prevent tipping and the splashing of hot liquid. The means
of restraint may be the manner of installation, such as connection to a battery of
appliances, installing the fryer in an alcove, or by separate means such as adequate ties.
Make the flue connection as follows:
Comply with Vapor Removal from Cooking Equipment, ANSI-NFPA
Standard #96 (latest edition), available from the National Fire Protection
Association, Batterymarch Park, Quincy, MA 02269.
Locate the fryer under a hood with adequate connection to an exhaust
duct. The hood must extend 6” (15 cm) beyond fryer on both sides.
Clearance above the fryer should be adequate for combustion byproducts
to be removed efficiently.
An 18” (46 cm) minimum clearance should be maintained between the flue
vent and the filters of the hood venting system.
Never make flue connections directly to the fryer.
Do not obstruct the flow of the gases from the appliance. Proper air
balance should be maintained in the room.
ASSEMBLY
FLUE CONNECTION
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GRDF / GRCF SERIES GAS FRYERS
GAS CONNECTION
All gas supply connections and any pipe joint compound must be
resistant to the action of propane gases.
The gas inlet is located on the lower rear of the fryer. Codes require that a gas shutoff
valve be installed in the gas line ahead of the fryer.
The gas supply line must be at least the equivalent of ½” (12.7 mm) iron pipe for single
units and 1-1/4” (31.75 mm) for batteries. If using the optional quick-disconnect flex hose,
¾” (19 mm) iron pipe for single units and 1-1/4” (31.75 cm) iron pipe for batteries.
Make sure the pipes are clean and free of obstructions, dirt, and piping compound. A
battery requires one or two connections of appropriate size for the gas requirement.
Prior to lighting, check all joints in the gas supply line for leaks.
Use soap and water solution. Do not use an open flame.
After piping has been checked for leaks, fully purge gas pipes to remove air.
GAS PRESSURES (ALL MODELS):
The gas pressure should be set at 4” W.C. (Water Column) (0.8 kPa) for natural gas and
10” W.C. (2.75 kPa) for propane gas. If incoming pressure exceeds ½ PSI (3.45 kPa), an
additional pressure regulator must be installed.
TESTING THE GAS SUPPLY PIPING SYSTEM:
When test pressures exceed ½ PSI (3.45 kPa), the fryer and its individual shutoff valve
must be disconnected from the gas supply piping system.
When test pressures are ½ PSI (3.45 kPa) or less, the fryer must be isolated from the gas
supply piping system by closing its individual shutoff valve.
Fryers with Casters:
Separate instructions for installing casters are included with the casters:
The installation shall be made with a connector that complies with the
Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 or Connectors
for Moveable Gas Appliances, CAN/CGA-6.16, and a quick-disconnect device that
complies with the Standard for Quick-Disconnect Devices for Use with Gas Fuel,
ANSI z21.41 or Quick-Disconnect Devices for Use with Gas Fuel, CANI-6.9.
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
When installing a quick disconnect you must also install a means for limiting the
movement of the fryer. This device will prevent the gas line or quick disconnect
from being strained. The restraining device should be attached to the cutout on the
back panel. See illustration for location.
In Australia, use only the caster supplied by the manufacturer for the fryer
device. The fryer must be installed using a hose assembly restraining device to
limit the movement of the appliance in accordance with AS1869.
The fryer must be installed with a connector (not supplied by Vulcan)
complying with the above codes.
The fryer must be installed with restraining means to guard against
transmission of strain to the connector. See illustration.
The fryer must be installed with the casters provided.
If the restraint is ever to be disconnected, first turn the gas supply off.
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Check the level of the fryer by placing a level on top of the fryer after gas connections
have been made.
Ensure that the fryer is level front-to-back and side-to-side in the final installed position.
If using casters, lock the wheels after unit is level.
Hot oil and parts can cause burns. Use care when operating,
cleaning and servicing the fryer.
Spilling hot frying compound can cause severe burns. Do not move
fryer without draining all frying compound from the tank.
If the shortening becomes overheated, a high-temperature shutoff device will turn the gas
valve off and extinguish the pilot.
If the fryer shuts down due to overheating, DO NOT power up the pilot until the shortening
temperature is below 300°F (149°C).
If an overheating situation persists, contact your local Vulcan-Hart authorized service
office.
Cleaning
New units are wiped down at the factory to remove any visible signs of dirt, oil, grease,
etc. remaining from the manufacturing process.
Before any food preparation, thoroughly wash the protective oil from all surface parts and
the tank interior with hot soapy water to remove any film residue and dust or debris.
Do not use chlorine or sulfate/sulfide cleaners.
Wash any accessories shipped with unit.
• Rinse fryer and accessories thoroughly and drain the fryer.
Wipe tank completely dry with a soft, clean cloth.
LEVELING THE FRYER
OPERATION
OVER-TEMPERATURE SHUTDOWN
BEFORE FIRST USE
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Close the drain valve.
Fill the fryer tank with liquid shortening.
Shortening level should be between the min and max lines in the fryer tank.
Shortening will expand when heated. Do not fill the fryer tank past the
MAX line.
Add fresh shortening as needed to maintain oil level.
Set the desired temperature and allow shortening to heat up to that temperature.
Fry items that are the same size to ensure equal doneness.
Drain or wipe dry raw or wet foods to minimize splatter when lowering into hot
shortening.
Add fresh shortening as needed.
FILLING TANK WITH SHORTENING
BASIC FRYING INSTRUCTION
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Fry Basket Guidelines
Do not overfill baskets. (See table for recommended basket capacities below)
Carefully lower basket into oil.
When frying doughnuts and fritters, turn product only once during frying.
When cooking French fries or onion rings, shake the basket several times.
Batter covered foods should be dropped carefully, one by one, into shortening or
basket. If you use the basket, first dip the basket into the shortening to
reduce batter-build up on basket surfaces.
When frying is completed, remove basket or product. Hang basket on rear
hanger.
Fry Basket Capacity:
1GR45D / C: Recommended pounds per basket are 2.5 lbs. (1.1 kg).
1GR65D / C: Recommended pounds per basket are 3.0 lbs. (1.4 kg).
1GR85D / C: Recommended pounds per basket are 3.5 lbs. (1.6 kg).
EXTENDING SHORTENING LIFE
Shortening life can be extended by the following guidelines:
Do not salt foods over the fryer.
Use good-quality shortening.
Filter shortening daily (at a minimum).
Replace shortening if it becomes poorly flavored.
Keep equipment and surrounding clean.
Set thermostat correctly.
Remove excess moisture and particles from food products before placing on fryer.
Open the door to the fryer. Turn the power switch to the on position.
Set temperature by turning the knob to the desired temperatures. The burners will
light automatically.
The burners will cycle on and off, maintaining the set temperature.
TURNING ON THE FRYER
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
1. Turn the thermostat OFF.
2. To keep the pilot lit, turn the gas valve to “L” in Pilot.
3. To shut off all gas to the system, including the pilot, turn the gas valve
knob to OFF.
1. Turn the thermostat knob to OFF.
2. Push in the pilot knob and turn to OFF.
3. Thoroughly drain the fryer. Refer to DRAINING THE FRYER.
4. Clean the fryer according to CLEANING.
5. Turn off the main gas shutoff valve.
Programming the Solid State Control
TURNING OFF THE FRYER
EXTENDED SHUTDOWN
Programming the Computer Control
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Programming the Computer Control
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
FILTERING THE OIL
Hot oil and hot parts can cause burns. Use care when operating,
cleaning, and servicing the fryer.
Filter shortening at least once a day.
1. Do NOT turn off the power to the fryer. Leave power on.
2. Insert the drain extension into the drain valve. Tighten only hand tight.
3. Direct the drain extension into the mobile filtering device that you want to use.
4. A cold fryer will not drain properly. Always filter shortening between 250°F
and 350°F. The shortening in the cold zone area will remain hard if the heat is
only on for a few minutes. If necessary, use the clean-out rod to carefully stir
the hard shortening to an area above the cold zone where it will melt.
5. Use the provided crumb scoop to remove the heavy debris lying on the bottom
of the tank.
6. Slowly open the drain valve to allow oil to flow from the fry tank to the filter pan.
Then open the drain valve all the way. Please note the gas burners will
automatically turn off at this point and DRAINING will appear on the digital
display for solid state models and DRAINING OIL will display on computer
models.
7. When fry tank is empty use the tank brush to remove any additional debris.
8. Close the drain valve. The display will change to; FILL TANK for solid state
models and FILL TANK for computer models.
9. Fill tank with new shortening. Fill to a minimum of the MIN level but no high that
halfway between MIN and MAX. Oil will expand as it is heated.
10. Press the Temp button on the display. The display will ask if the tank is full;
TANK FULL.
11. Press the TEMP button on the display a second time to confirm that the oil level
is correct in the fry tank. Once pressed, the gas burners will ignite and begin
heating the oil to desired temperature.
DRAINING THE TANK
1. Turn off fryer.
2. Insert the drain extension into the drain valve. Tighten only hand tight.
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
3. Direct the drain spout into the container that you want to drain the shortening into.
4. Open the drain valve. The oil will drain into the container. When the container is
full or the fryer tank is empty, close the drain valve. Repeat this step until the fryer
is empty. Remove the drain extension and place it back into the provided holder.
5. It is recommended to now Boil Out your fry tank. Follow the Boil Out procedure.
Then perform the weekly clean-out as described under CLEANING.
6. Once tank is completely empty, boiled out and cleaned, add new shortening. Turn
on the power switch to begin heating the oil to desired temperature.
Weekly or when oil is replaced:
1. Drain the tank as described under FILTERING THE OIL and instead of replacing
the shortening with new oil fill with water
2. Close the drain valve and fill tank with water. Use recommended Vulcan’s Boil-Out
solid degreaser low foaming cleaner tablets part number 956812-1 which can be
ordered from your local dealer
Do not use chlorine or sulfate/sulfide cleaners.
3. Solution level must be between the MIN and MAX levels on the fryer tank.
4. After pressing the TEMP button for the second time confirming that the boil out
solution level is correct the gas burners will begin to heat the water solution. The
fryer controls will be able to sense that there is a water mix solution vs. oil and will
automatically set the correct temperature. There is NO need to change the set
temperature from the last set operating temperature. Allow solution to simmer for
about 15 to 20 minutes. Use a tank brush to clean the sides, back, front, and heat
exchanger tubes.
5. With the drain extension tightened into the drain valve, drain and discard the
cleaning solution from the tank.
6. Close the drain valve and refill the tank with water. Add 1 cup (1/4 L) of vinegar to
neutralize alkaline left by the cleaner. Solution level must be between the MIN and
MAX level on the fryer tank. Press the TEMP button to confirm the vinegar level is
correct.
7. Press the TEMP button again and the gas burners will heat the solution. Bring the
solution to a simmer only. Allow to stand for a few minutes.
BOIL OUT PROCEDURE
. Follow the instructions on the side of the package.
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GRDF / GRCF SERIES GAS FRYERS
8. Turn OFF the power to the fryer. Drain the tank according to DRAINING THE
TANK. Rinse thoroughly with clear, hot water. All traces of cleaner must be
removed. Dry the tank thoroughly.
9. Close the drain valve and add shortening. Follow the FILLING TANK WITH
SHORTENING procedure in this manual. The fryer is now ready for use.
Hot oil and hot parts can cause burns. Use care when operating,
cleaning, and servicing the fryer.
Daily
Clean your fryer regularly with the tank brush along with a damp cloth, and polish with a
soft dry cloth. If regular cleaning is neglected, grease will be burned on and discolorations
may form.
Fingerprints are sometimes a problem on highly polished surfaces of stainless steel. They
can be minimized by applying a cleaner that will leave a thin oily or waxy film.
Clean all exterior surfaces of your fryer at least once daily.
Use a damp cloth with warm water and a mild soap or detergent.
Do not use chlorine or sulfate/sulfide cleaners.
Rinse thoroughly, and then polish with a soft dry cloth.
Keep the fryer exterior clean and free of accumulated grease to prevent
stubborn stains from forming. If regular cleaning is neglected, grease will be
burned on and discolorations may form.
Remove discolorations by washing with any detergent or soap and water.
Use a self-soaping, non-metallic scouring pad for particularly stubborn
discolorations.
Always rub with the grain of the stainless steel.
Do not use a metallic scoring pad or harsh cleaners.
CLEANING
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
KleenScreen Plus® Filtration System
Installation and Operational Manual for “DF” and “CF” Models
GRD/CF and 2XGD/CF Models
2GR45DF Shown 2XG45DF Shown
GAS KleenScreen PLUS® Models:
2GR45DF ML-136424
2GR45CF ML-136431
2GR65DF ML-136425
2GR65CF ML-136432
2GR85DF ML-136426
2GR85CF ML-136433
3GR45DF ML-136427
3GR45CF ML-136434
3GR65DF ML-136428
3GR65CF ML-136435
3GR85DF ML-136429
3GR85CF ML-136436
4GR45DF ML-136430
4GR45CF ML-136437
4GR65DF ML-136662
4GR65CF ML-136663
4GR85DF ML-136665
4GR85CF ML-136666
2XG45DF ML-136562
2XG45CF ML-136563
2XG65DF ML-136638
2XG65CF ML-136639
2XG85DF ML-136565
2XG85CF ML-136566
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Filtering Instructions for KleenScreen PLUS® Fryers
General
The KleenScreen PLUS® filtration system filters the oil as it is pumped back into its’ respective
tank(s). Only one tank can be drained and filtered at a time. Under no circumstances should both
tanks be drained at the same time.
Assembly
• After unpacking, wash the filter pan, crumb basket and filter screen assembly. Make sure
you remove the insert located inside the filter screen. Use dishwashing detergent and warm
water, (parts are dishwasher safe). Rinse the filter pan, crumb basket and filter screen
components completely and wipe all parts dry with a clean cloth.
• Pull out the filter drawer all the way leaving the filter pan opening exposed.
• Place the filter tank into the filter drawer making sure that the pins on the bottom of the filter
pan line up with the holes in the filter drawer. Position the filter screen assembly into the
suction tube clip in the filter pan positioning the filter screen assembly flat on the bottom of
the filter pan. Place the primary crumb basket onto the left handle of the filter pan.
• Carefully line up the suction tube nozzle so that it mates with the oil receptacle block
mounted on the frame of the fryer battery. Close the drawer. See Figures 1, 2 3 and 4.
Suction Tube
Filter Screen
Filter Insert
Knurled Bottom
Fitting
Fig. 1
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Fully assembled filter screen assembly:
Fig. 2
Secure Tube with
Suction Tube Clip
Filter Screen Lays
Flat On Bottom of
Filter Pan
Fig. 3
Micro-Filtration Fabric Envelope Assembly: Same Suction Tube
Fabric Envelope Insert
(Different from Screen Assembly)
Fabric Envelope
Closing Clip
Same Knurled Knob
Fig. 4
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
INSTRUCTIONS TO REMOVE & REPLACE KLEENSCREEN PLUS® FILTER ENVELOPE
FOR ABSOLUTE FILTRATION & MAXIMUM FLOW RATE WE RECOMMEND YOU CHANGE YOUR FILTER
ENVELOPES AT EVERY OIL CHANGE (10-14 DAYS DEPENDING ON OIL USAGE).
Step 1
Discard all oil from the filter vessel, (see pages 23 or 24). When the
filter pan is empty, use a spatula and scrape off all debris left on the
filter envelope and in the filter pan.
Step 2
Unscrew “S” Tube from filter by turning the Bottom Knurled fitting
counter- clockwise.
Step 3
Remove SST Closure Clip by lifting off one side.
Step 4
Remove SST Filter Screen Insert and wash insert with hot water and
dry thoroughly. The Filter Screen Insert is dishwasher safe. Place the
insert into a new KleenScreen PLUS® Filter envelope.
DO NOT WASH FABRIC ENVELOPE
Step 5
Place Filter Screen Insert into the fabric envelope making sure that the
holes line up. Fold over the other end of the envelope and place SST
Closure Clip on – hinge over and firmly press clip all the way down to
secure and seal filter assembly. Making sure that the folded end is face
down; screw “S” Tube Assembly onto the Filter Assembly. Tighten the
Bottom Knurled fitting. When tightened, the “S” Tube assembly should
be perpendicular to the long side of the filter assembly.
Step 6
Reposition the filter tube into the provided clip. Align filter tube so that
the end of the “S” Tube engages the Oil Receptacle fitting each time the
drawer is opened and closed.
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Operation
Hot oil and parts can cause burns. Use care when operating,
cleaning and servicing the fryer.
Spilling hot frying compound can cause severe burns. Do not move
fryer without draining all frying compound from the tank.
Never run water or boil out solution through filter and motor / pump. Doing so
will void your fryer warranty.
FILTERING PROCEDURE
Oil Temperature should be 300-350° F. Use the provided crumb scoop to remove and suspend
crumbs on the bottom of the tank before proceeding to Step 1.
1. Do not turn off the Fryer. The power must be on throughout the entire filtering process.
Do NOT heat the fryer during the filtering procedure. Permanent damage to your fry
tank may occur and warranty may be voided.
2. Vulcan recommends adding an oil treatment media to the oil prior to filtering.
3. Make sure that the filter drawer is closed completely and that the suction tube and
receptacle block are in the correct position. Fig. 5
Fig. 5
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Filtering Instructions for KleenScreen PLUS® Fryers with Solid State Controls
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Filtering Instructions for KleenScreen PLUS® Fryers with Computer Controls
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
FILTERING TIP:
Open the filtering drawer approximately 1” to allow any oil in the return line to run back into the filter
pan. This will take about 30 seconds to complete. Then open the drawer completely to clean filter
components.
REMOVING EXCESS DEBRIS FROM THE SCREEN FILTER:
1. Pull the filter drawer out and remove the crumb basket and empty any debris into the trash.
2. Remove the filter screen assembly. Scrape debris from the filter screen. Then remove the
insert by unlatching the latch. Clean all parts thoroughly as mentioned in the Assembly
section on page 19.
3. Scrape debris from the bottom of the filter pan and discard in the trash. Clean all parts
thoroughly as mentioned in the Assembly section on page 19. Clean all parts thoroughly as
mentioned in the Assembly section on page 19.
4. Reassemble all filter components after being dried thoroughly as in the Assembly section on
page 19.
FLUSH AND DISCARD:
1. Follow filtering instructions 1-3, however do not put oil treatment media into the fryer. Drain
the fryer oil into the filter pan.
2. Attach the quick disconnect hose to the discard male quick disconnect fitting, (hose not
supplied with fryer – Accessory Option).
3. Place other end of the discard hose into a container that is large enough to retain the
discarded shortening.
4. To start the discard operation, turn Power Switch ON.
5. Pull the Yellow Discard Handle Lever Rod towards you and the Motor/Pump will begin to
operate. NOTE: Oil will come out immediately out of the nozzle end of the hose.
6. Once the oil has been discarded completely and the filter pan is empty, push the Discard
Lever back in. The Motor/Pump will stop and turn the Power Switch OFF.
7. Disconnect the discard hose. Be careful to let the hose drain before putting away. Close the
drain valve and fill the fry tank with new oil.
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
BOIL OUT PROCEDURE:
Use the Boil Out By-Pass™ drain extension allowing the boil
out solution to exit the fry tank without using the filtering
system. Do not allow water to run through the motor / pump.
Drain the boil out solution into a bucket or place a hose on the
end of the drain extension allowing the other end to flow into a
floor drain. In Fig. 6 the arrow is pointing to the drain
extension. It is threaded into the top coupling of the oil drain
tube. Drain extension needs to be only hand tightened.
Fig. 6
THERMAL OVERLOAD PROTECTION BUTTON:
The motor/pump supplied with the filtering system
has a thermal overload protection circuit that senses
when excess heat occurs due to filtering for long
periods of time or under heavy load prior to
discarding debris buildup. If the thermal overload
protection is tripped, wait 5 minutes and then reset
the motor by pushing in the red button. The arrow in
Figure 7 shows the location of the reset button;
located on the front off the motor / pump facing
towards you.
Fig. 7
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
Hot oil and hot parts can cause burns. Use care when operating,
cleaning, and servicing the fryer.
Spilling hot fryer compound can cause severe burns. Do not
move fryer without draining all frying compound from the tank.
When the fryer is cool, inspect annually. Check the flue and clear any obstructions.
Service in the US and Canada
Contact you local Vulcan-Hart Service office or address on the front of this manual.
In Australia
Contact Hobart Food Equipment PTY. LTD., 16 Hilly Street Morlake, N.S.W. 2137 Australia;
P.O. Box 100, Concord N.S.W. 2137; Tel: (02) 9736 1200; Fax: (02) 9736 1555.
www.hobartfood.com.au
PILOT OUT – If the pilot is out, the digital control displays the following message:
“D” Solid State – NO PLIOT
“C” Computer – PILOT OUT
If no action is taken after 90 seconds, an alarm sounds continuously, the heat demand is
disabled and any running cooking cycles are cancelled. The digital display the following
message:
“D” Solid State – IGNITION LOCKOUT
“C” Computer – IGNITION LOCKOUT
The fryer must be turned off, then back on before the pilot can be re-initialized and normal
functions resumed.
MAINTENANCE
FLUE VENT INSPECTION
ALARMS AND ERROR MESSAGES
VULCAN-HART F-31214 Rev. D (March 2008)
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GRDF / GRCF SERIES GAS FRYERS
OPEN PROBE – If an open probe is detected, the heat demand is disabled and any running
cooking cycles are cancelled. All operator buttons are disabled. The digital control displays
the following message:
“D” Solid State – OPEN PROBE
“C” Computer – PROBE OPEN
SHORTED PROBE – If a shorted probe is detected, the heat demand is disabled and any
running cooking cycles are cancelled. All operator buttons are disabled. The digital control
displays the following message:
“D” Solid State – SHORTED PROBE
“C” Computer – PROBE SHORT
Hi TEMPERATURE – If the temperature is greater than or equal to 415°F (212°C), the heat
demand is disabled and any running cooking cycles are cancelled. All operator buttons are
disabled. The control displays the following message:
“D” Solid State – HIGH TEMP
“C” Computer – HIGH TMP HIGH TMP
Troubleshooting Chart:
Problem: Probable Cause:
No Heat: Power switch not turned on.
Gas supply not turned on.
Wire connections loose (call service)
Wires connections need cleaning
High Limit (call service)
Insufficient or too much heat: Temperature not set to desired temperature.
High limit tripped (call service)
Temperature probe (call service)
Tank will not drain: Shortening too cold.
Drain pipe clogged with debris.
Motor / pump will not pump oil: Suction tube not seated correctly in receptacle block.
Filter screen is clogged and needs cleaning.
Shortening is too thick / cold. Heat oil up to min. 300º F.
Discard valve lever not fully engaged either for filtering or
discarding.
VULCAN-HART F-31214 Rev. D (March 2008)
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