Southbend Range GFS65 Service Manual
IMPORTANT FOR FUTURE REFERENCE
Please complete this information and retain this
manual for the life of the equi pment:
Model #: __________________________
Serial #: __________________________
Date Purchased: ___________________
OPERATOR’S MANUAL
Free-Standing, Floor Model
GFS Series Tube Fryers
Model GFS35 Model GFS45 Model GFS65
! WARNING
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.
1100 Old Honeycutt Road, Fuquay-Varina, NC 27526
(800) 348-2558 or (919) 552-9161 • FAX (800) 348-2558 or (919) 552-9798
MANUAL 1182026 REV 2
$10.00
GFS SERIES TUBE FRYERS
MANUAL SECTION SR
Safety Precautions
Before installing a nd opera ting this equipm ent, be sure e ver yone invo lved in its operat ion is full y trained and
aware of precautions. Accidents and problems can be caused by failure to follow fundamental rules and
precautions.
The following s ymbols, found throughout this manual, alert you to potentially dangerous conditions to the
operator, service personnel, or to the equipment.
! DANGER
! WARNING
! CAUTION
NOTICE
This symbol warns of immediate hazards that will result in severe injury or
death.
This symbol refers to a potential hazard or unsafe practic e that could result in
injury or death.
This symbol refers to a potential hazard or unsafe practic e that could result in
injury, product damage, or property damage.
This symbol refers to information that needs special attention or must be fully
understood, even though not dangerous.
! WARNING
FIRE HAZARD
FOR YOUR SAFETY
Do not store or use gas oline or other flamm able vapors and liq uids in the vicinity of this or an y other
appliance.
Keep area around appliances free and clear of combustibles.
Purchaser of equipment m ust post in a prom inent location, d etailed instruct ions to be follo wed in the
event the operator smells gas. Obtain the instructions from the local gas supplier.
! WARNING
BURN HAZARD
Contact with hot oil will cause severe b ur ns . A lways use caution. Oil at 2 00 °F is more dangerous than
boiling water.
! WARNING
In the event a gas odor is det ected, shut down equ ipment at the com bination gas valve a nd contact
the local gas company or gas supplier for service.
NOTICE
Southbend GFS Series Tube Fryers are intended for commercial use only. Not for household use.
Warranty will be void if servic e work is perfo rmed b y other than a qualif ied techn ician, or if other th an
genuine Southbend replacement parts are installed
Be sure this Operator’s Man ual and important papers ar e given to the proper authorit y to retain for
future reference.
PAGE 2OPERATOR’S MANUAL 1182026 REV 2
GFS SERIES TUBE FRYERS TABLE OF CONTENTS
Congratulations! You have purchased one of the finest p ieces of heav y-duty comm ercial cook ing equipm ent
on the market.
You will find that your new equipm ent, like all South bend equipment, has been desig ned and m anufactured
to meet the toughest standards in the indust ry. Each piece of So uthbend equipm ent is carefully engine ered
and designs are verified through laboratory tests and field installations. With proper care and field
maintenance, you will experience years of reliable, trouble-free operation. For best results, read this
manual carefully.
RETAIN THIS MANUAL FOR FUTURE REFERENCE.
Model Numbers
This manual is for Southbend Fr ee-Stand ing, Flo or Model, G FS Ser ies Tube Fr yers m odels GFS 35. GFS45.
and GFS65. The serial plate is located inside the front door on the left side.
Table of Contents
Specifications..........................................................................................................................4
Installation...............................................................................................................................6
Operation ..............................................................................................................................12
Cooking Hints........................................................................................................................15
Cleaning................................................................................................................................17
Service..................................................................................................................................20
Parts......................................................................................................................................25
Read these instructions carefully before attempting installation. Installation and initial startup should be
performed by a qualified installer. Unless the installation instructions for this product are followed by a
qualified service technic ian (a person experienced in and knowledgeab le with the installati on of commer cial
gas an/or electric cooking equipm ent) then the terms and conditions on the Ma nufacturer ’s Lim ited W arranty
will be rendered void and no warranty of any kind shall apply.
In the event you have questions concerning the installation, use, care, or service of the product, write to:
Technical Service Department
Southbend
1100 Old Honeycutt Road
Fuquay-Varina, North Carolina 27526 USA
OPERATOR’S MANUAL 1182026 REV 2PAGE 3
SPECIFICATIONS GFS SERIES TUBE FRYERS
A
w
w
w
SPECIFICATIONS
SPECIFICATIONS
Dimensions
Model GFS65 Shown
C
D
H
B
Top Vie
Model
GFS35
GFS45
GFS65
F
G
6.1"
(155)
6.1"
(155)
6.1"
(155)
Side Vie
(107)
(107)
(122)
4.2"
4.2"
4.8"
8.7"
(221)
8.7"
(221)
8.7"
(221)
Front Vie
Width Depth Height Gas Connection
ABCDEFGHI
15.7"
(399)
15.7"
(399)
19.6"
(498)
14.2"
(361)
14.2"
(361)
18.2"
(462)
31.0"
(787)
31.0"
(787)
34.3"
(871)
14.7"
(373)
14.7"
(373)
17.9"
(455)
47.6"
(1209)
47.6"
(1209)
47.6"
(1209)
36.2"
(919)
36.2"
(919)
36.2"
(919)
I
Total
BTU/hr
105,900
140,900
175,900
E
Crated
Weight
190 lbs
86.4 kg
205 lbs
93.2 kg
240 lbs
109.1 kg
PAGE 4OPERATOR’S MANUAL 1182026 REV 2
GFS SERIES TUBE FRYERS SPECIFICATIONS
Gas Supply Requirements and Burner Information
Supply pressure should be greater than 7" W.C. for natural gas or greater than 11" W .C. for propane. One
3/4" NPT male connector located on back (see illustrations on pages 4 and 7).
SPECIFICATIONS
Model Burners Gas Type
Main
GFS35
Pilot
Main
GFS45
Pilot
Main
GFS65
Pilot
Natural 4" W.C. 3 35,000 105,000 #36 - 0.1065" dia.
Propane 10" W.C. 3 30,000 90,000 #52 - 0.0635" dia.
Natural 4" W.C. 1 900 900 #77 - 0.0180" dia.
Propane 10" W.C. 1 900 900 0.0110" dia.
Natural 4" W.C. 4 35,000 140,000 #36 - 0.1065" dia.
Propane 10" W.C. 4 30,000 120,000 #52 - 0.0635" dia.
Natural 4" W.C. 1 900 900 #77 - 0.0180" dia.
Propane 10" W.C. 1 900 900 0.0110" dia.
Natural 4" W.C. 5 35,000 175,000 #36 - 0.1065" dia.
Propane 10" W.C. 5 30,000 150,000 #52 - 0.0635" dia.
Natural 4" W.C. 1 900 900 #77 - 0.0180" dia.
Propane 10" W.C. 1 900 900 0.0110" dia.
Manifold
Pressure
Electrical Requirement
No external electric power is required.
Clearances
See page 9.
Number
per Unit
Rate Each
BTUs/Hour
Total Rate
BTUs/Hour
Orifice Size
OPERATOR’S MANUAL 1182026 REV 2PAGE 5
INSTALLATION GFS SERIES TUBE FRYERS
INSTALLATION
Installation m ust conform with local codes, or in the absence of local codes , with the National Fue l
Gas Code, ANSI Z223.1, Natural Gas Installation Code, CAN/CGA-B149.1, or the Propane
Installation Code, CAN/CGA-B149.2, as applicable.
INSTALLATION
These installation procedures must be followed by qualified personnel or warranty will be void.
Local codes regarding install ation var y greatly from one ar ea to anoth er. The Nat ional F ire Protect ion
Association, Inc. states in its NFPA 96 latest edition that local codes are the “authority having
jurisdiction” when it comes to installation requirements for equipment.
NOTICE
NOTICE
Step 1: Unpack
IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
All containers shou ld be examined for dam age before and during unlo ading. The freight car rier has
assumed responsibility for safe transit and delivery. If damaged equipment is received, either
apparent or concealed, a claim must be made with the delivering carrier.
Apparent damage or l oss m us t be noted on the f reight b ill at the t im e of deliver y. T he f reight bi ll m ust
then be signed by the c arrier representative (Dr iver). If the bill is not s igned, the carrier may r efuse
the claim. The carrier can supply the necessary forms.
A request for insp ection must be m ade to the carrier within 15 da ys if there is concea led damage or
loss that is not apparent until after the equipment is uncrated. The carrier should arrange an
inspection. Be certain to hold all contents plus all packing material.
1. Uncrate carefully. Report any hidden damage to the freight carrier IMMEDIATELY.
2. Do not remove any tags or labels until unit is installed and working properly.
Step 2: Install Flue Riser
The flue riser assembl y is packed separately in the f r yer ship pin g c r ate. Att ac h t he f lue ris er to the top rear of
the fryer (see illustration on page 7).
PAGE 6OPERATOR’S MANUAL 1182026 REV 2
GFS SERIES TUBE FRYERS INSTALLATION
Installation
Flue Riser
INSTALLATION
Gas Connection
Leg Attachment Pad
OPERATOR’S MANUAL 1182026 REV 2PAGE 7
INSTALLATION GFS SERIES TUBE FRYERS
Step 3: Install the Legs (or Casters) and Restraints
A set of legs or casters is packed with the fryer. A threaded pad is fastened to the base frame at each corner
(see illustration on page 7). Each leg or caster has a similar mating thread. When casters have been
ordered, the casters are provided with a Zerk fitting for proper lubrication when required.
1. Raise fryer sufficientl y to allow legs or cas ters to be screwed into the pads. For saf ety, “shore up” and
support the fryer with an adequate blocking arrangement strong enough to support the load.
2. Screw the four legs or casters to the pads o n the bottom of the f ryer. W hen caster s have been or dered,
the casters having a locking-brake should be attached under the front of the fryer.
3. Lower the fryer gently. Never drop or allow the fryer to fall.
4. Use a level to make sure that the fryer is level. Each caster, or the t ubular-end of each leg, can be
INSTALLATION
screwed in or out to lower or raise each cor ner of the fryer. For f ryers having casters, t ighten the lock
nuts after the unit has been leveled.
5. Attach r est raints as requir ed b y loca l cod es.
NOTICE
Unit must be level to assure maximum performance. Improper leveling may void warranty.
NOTICE
Adequate restraining means must be attached to rear of appliance when installed. Installation must
conform to local codes as applicable.
! WARNING
If disconnection of the restraint is necessar y to move the appliance for cleaning, etc., reconnect it
when the appliance is moved to its original installed position.
! WARNING
For an appliance e quipped wi th cas ters , the ins tallati on sh all b e m ade with a co nnector that c om plies
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, CAN1-6.9. Adequate means must be provided t o lim it the m ovement
of the appliance without depending on the connector and the quick-disconnect device or its
associated piping to limit the appliance movement.
! WARNING
All GFS Series Fryers must be restrained to prevent t ipping in order to avoid the splashing of hot
liquid. The means of restraint m ay be the manner of installat ion, such as connection to a battery of
appliances or installing the fryer in an alcove, or by separate means, such as adequate ties.
PAGE 8OPERATOR’S MANUAL 1182026 REV 2
GFS SERIES TUBE FRYERS INSTALLATION
Step 4: Check Clearances and Ventilation
Select a firm, level loc ation for your Southbend f ryer. Leave clearance, whenever possible, so t hat access
from the rear is possible to permit clean ing. If the unit is to be set o n non-combustible floorin g, such as a
concrete slab, 3 inches minim um toe room must be provided to pr event restriction of t he air opening in the
bottom of the unit.
! WARNING
There must be adequate clearance between fryer(s) and construction. Clearance must also be
provided in front for servicing and for operation.
Minimum Clearances:
From Combustible Construction From Non-Combustible Construction
Sides 7" 0"
Rear 7" 0"
ALL GFS SERIES FRYERS SHALL BE INSTALLED WITH AT LEAST A 16 INCH SPACE BETWEEN
THE FRYER AND SURFACE FLAMES FROM ADJACENT EQUIPMENT.
No additional side and rear clearance is required for service as the fryer is serviceable from the front.
INSTALLATION
! WARNING
Improper ventilation can result in person al inj ury or death. Ventilati on tha t fails to properl y remove flue
products can cause headaches, drowsiness, nausea, or could result in death.
All units must be installed in such a manner that the flow of combustion and ventilation air is not
obstructed. Provisions for adequate air supply must also be provided. Do NOT obstruct the bottom
front of the unit, as combustion air enters through this area. Be sure to inspect and clean the
ventilation system according to the ventilation equipment manufacturer’s instructions.
NOTICE
Proper ventilation is t he owner’s responsibility. An y problem due to improper venti lation will not be
covered by the warranty.
Due to the variety of problems that can be c a us ed b y outs ide weat her c on dit io ns , ve nt ing by canopies or wall
fans is preferred over any type of direct venting. It is recommended that a canopy extend 6" past the
appliance and the bottom edge be located 6'6" from the floor. Filters should be installed at an angle of 45° or
more from the horizontal. This position prevents dripping of grease and facilitates collecting the run-off
grease in a drip pan, unusually install ed with a filter. A strong exhaus t fan tends to create a vacuum in the
room and may interfere with burner performance or may extinguish pilot flames. Fresh air openings
approximately equal to the fan area will relieve such a vacuum . In case of unsatisfactor y performance on
any appliance, check the appliance with the exhaust f an in the “OFF” pos ition. Do this only long eno ugh to
check equipment perform ance, then turn hood bac k on and let it run to remove any exhaus t that may have
accumulated during the test.
The exhaust fan should be installed at least 2 feet above the vent opening at the top of the fryer.
This unit is not intended to be connected directly to an outside flue.
OPERATOR’S MANUAL 1182026 REV 2PAGE 9
INSTALLATION GFS SERIES TUBE FRYERS
Step 5: Gas Connection
A 3/4" male NPT line for the gas connection is located near the lower left rear corner of the fryer (see
illustration on page 7). T he ser i al pla te (l oc ate d i ns ide th e front door of the fryer) indicates the t ype of gas th e
unit is equipped to burn (natural gas or propa ne). The f ryer shou ld be c onnec ted ON LY to th e t ype of gas for
which it is equipped.
A millivoltage circuit diagram is located inside the front door of the fryer.
All Southbend equ ipment is adjusted at the f actory; however, pilot he ight should be ch ecked at installat ion
and adjusted, if necessary (see page 22).
For orifice sizes and pressure regulator settings, see the chart on page 5. If the fryer is being installed at over
2,000 feet altitude and that inform ation was not specified when order ed, contact the appropr iate authorized
Southbend Service Representative or the Southbend Service Department. Failure to install with proper
orifice sizing will result in poor performance and may void the warranty.
INSTALLATION
If applicable, the ven t line from the gas appliance pressure regulator shall be installed to the outdoors in
accordance with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI
Z223.1, Natural Gas Installation Code, CAN/CGA-B149.1, or the Propane Installation Code, CAN/CGAB149.2, as applicable.
An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of gas
necessary for satisfac tory performance. A com bination gas valve an d pressure regulator , which is provide d
with each unit, is set to maintain a 4 " W.C. manifold press ure f or natural gas or 10.0" W.C. manifold pres sur e
for propane gas. However, to mainta in these conditions the press ure on the supply line, when all units are
operating simultaneously, should not drop below 7" W.C. for natural gas or 11" W.C. for propane gas.
Fluctuations of m ore than 25% on nat ural gas or 1 0% on pr opan e gas will cr eate pro blem s and aff ect burner
operating characteristics. A 1/8" tap to measure the manifold pressure is located on the combination gas
valve, which is on the burner manif old loca ted dir ec t l y belo w the burn ers insi de the cab in et.
Purge the supply line to clean out dust, dirt, or other foreign matter before connecting the line to the unit.
It is recommended that an individual manual shutoff valve be installed in the gas supply line to the unit.
Use pipe joint compound that is suitable for use with both natural and LP gas on all threaded connections.
! CAUTION
ALL PIPE JOINTS AND CONNECTIONS MUST BE TESTED THOROUGHLY FOR GAS LEAKS.
USE ONLY SOAPY W ATER FOR TESTING O N ALL GASES. NEVER USE AN O PEN FLAME T O
CHECK FOR GAS LEAK S. ALL CONNECTIONS MUST BE CHEC KED FOR LEAKS AFTER T HE
UNIT HAS BEEN PUT INTO OPERATION. TEST PRESSURE SHOULD NOT EXCEED 14" W.C.
! CAUTION
THIS APPLIANCE AND ITS INDIVIDU AL COMBINATION GAS VA LVE MUST BE DISCONNE CTED
FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY PRESSURE TESTING OF THAT
SYSTEM AT TEST PRESSURES IN EXCESS OF 1/2 PSIG (3.45 kPa).
The appliance must be isola ted from the gas supply pipin g system by closing its individ ual manual
shutoff valve during any pressure test ing of the gas s upp ly piping system at tes t pr ess ur es eq ual to or
less than 1/2 psi (3.45 kPa).
Connect the gas suppl y direc tly to th e 3/4" m ale NPT connector locat ed near the lower left rear corn er of the
fryer. When tighten ing the supply pipe, be sure to hol d th e mating connector ex ten din g f r om the unit securely
with a wrench. This will prevent any damage or distortion to the internal piping and controls of the unit.
After connecting the gas suppl y, check again that the fryer is level. Use a lon g spirit level f our ways; acr oss
the front and rear of the frypot, and along each edge.
PAGE 10 OPERATOR’S MANUAL 1182026 REV 2
GFS SERIES TUBE FRYERS INSTALLATION
! CAUTION
IF YOU SMELL GAS DURING THE LIGHTING PROCEDURE, I MMEDIAT ELY SHUT OFF THE GA S
SUPPLY UNTIL THE LEAK HAS BEEN CORRECTED.
INSTALLATION
OPERATOR’S MANUAL 1182026 REV 2PAGE 11
OPERATION GFS SERIES TUBE FRYERS
OPERATION
NOTICE
These procedures must be followed b y qual if ied pers onn el or warra n t y will be vo ided .
All Southbend GFS Series Tube Fryers are immersion tube fryers. This is the most efficient method of
transmitting heat int o the oil. T he tubes are actual ly large h eat exc hangers. Eac h tub e is heated by a burner
at its front that propels its flame and heat into the tube , toward the rear, where it is vented into a flue box.
The combined heat tr ansfer area of the tubes is m uch greater than the other types using element coils or
under-fired pots. Consequent ly, heat transf er per square inch is lower, as is the tem perature, but becaus e of
the increased surf ace area, immersion tub e fryers transfer more heat into the o il. The lower temperature of
the heating surfac e prevents scorching and carbonizatio n of the oil. Higher heat transf er rate gives faster
recovery between loads.
Another advantage of immersion tube fryers is the cold zone. As oil is heated it passes between and over the
tubes and rises into th e frying zone, where it imparts heat into the pr oduct. After gi ving up heat , it des cends
to the cooler zone be low the tub es. Food p articles and crum bs are dr opped an d trap ped in the cold zone as
the oil awaits to be recirculated. The cold zone concept helps keep the oil circulating and clean of debris.
OPERATION
! WARNING
BURN HAZARD
Contact with hot oil will cause severe b ur ns . Al ways use caution. Oil at 2 00 °F is more dangerous than
boiling water.
! CAUTION
NEVER OPERATE THE FRYER WITHOUT SUFFICIENT OIL TO COVER THE TUBES.
Lighting
! CAUTION
IF YOU SMELL GAS DURING THE LIGHTING PROCEDURE, I MMEDIAT ELY SHUT OFF THE GA S
SUPPLY UNTIL THE LEAK HAS BEEN CORRECTED.
Open the burner compartment door and do the following:
1. Turn thermostat to “OFF” (lowest position).
2. Press down the knob of the combination gas
valve, turn it counterclockwise to the “PILOT”
position, and continue to press the knob down.
PAGE 12 OPERATOR’S MANUAL 1182026 REV 2
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