Southbend Range MDC-36 Operators 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
Medium Duty Counterline
Griddle Models MDG-24, MDG-36
(shown), and MDG-48
Thermostatic Griddle Models
MDGT-24, MDGT-36, and MDGT-48
Charbroiler Models MDC-24,
MDC-36, and MDG-48
Lava-Rock Models MDCL-24,
MDCL-36 (shown), and MDCL-48
Open Top Models MDO-12,
MDO-24, and MDO-36 (shown)
! 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.
(800) 348-2558 or (919) 552-9161 • FAX (800) 348-2558 or (919) 552-9798
MANUAL 1178822 REV 3
$18.00
1100 Old Honeycutt Road, Fuquay-Varina, NC 27526
MEDIUM DUTY COUNTERLINE
MANUAL SECTION MD
MEDIUM DUTY COUNTERLINE
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 potent ially 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, detailed instructi ons to be follo wed in the
event the operator smells gas. Obtain the instructions from the local gas supplier.
! WARNING
Asphyxiation can result from improper ventilation. Do not obstruct the flow of combustion and
ventilation air to and from your cooking equipment.
NOTICE
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 1178822 REV 3
MEDIUM DUTY COUNTERLINE TABLE OF CONTENTS
Congratulations! You have purchased one of the finest pieces of commercial cooking equipment 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.
Table of Contents
Specifications..........................................................................................................................4
Installation...............................................................................................................................9
Operation ..............................................................................................................................12
Cleaning................................................................................................................................14
Adjustments ..........................................................................................................................16
Troubleshooting ....................................................................................................................18
Parts......................................................................................................................................21
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
The serial plate is located on the interior side of the valve panel, as shown below:
Figure 1
Serial plate is located behind this panel.
OPERATOR’S MANUAL 1178822 REV 3PAGE 3
SPECIFICATIONS MEDIUM DUTY COUNTERLINE
SPECIFICATIONS
SPECIFICATIONS
NOTICE
Installation must comply with National Fuel Gas Code, ANSI Z223.1, Natura l Gas Installation Code,
CAN/CGA-B149.1, or the Propane Installation Code, CAN/CGA-B149.2, as applicable.
Local codes regarding install ation var y greatly from one ar ea to anoth er. The Nat ional Fir e Protect ion
Association, Inc. states in its NFPA 96 latest edition that local codes are the “authority having
jurisdiction” when it com es to installation req uirements for equ ipment. Theref ore, installations shou ld
comply with all local codes.
Southbend reserves the right to change specifications and product design without notice. Such
revisions do not e ntitle the bu yer to c orres ponding c hanges , add itions , or r eplacements for previo usl y
purchased equipment.
This product is intended for commercial use only, not for household use.
GAS SUPPLY
The Serial Plate is located on the inter ior side of the valve pa nel (see Figure 1 on page 3) . It indicates the
type of gas the unit is equipped to burn. All South bend equipment is adjus ted at the factory. Chec k type of
gas on serial plate.
These models are design-cer tified for operat ion on natural or propan e gases. The un it is shipp ed configured
for natural gas. A k it for c onversion to using pro pane gas is inclu ded (see i nstructions in k it or page 9 of this
manual).
This appliance should be connected ONLY to the type of gas for which it is configured.
An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of gas
required for satisf actor y perform anc e. Fluctua tions of m ore than 25% on nat ural gas or 10% on propa ne g as
will create problems and affect burner operating characteristics. A 1/8" pressure tap is located on the
manifold to measure the manifold pressure.
An adequate gas supply li ne to the unit should be no smaller than the inside diameter of the p ipe from the
unit to which it is connected.
Purge the supply line to clean out dust, dirt, or other foreign matter before connecting the line to the unit.
All pipe joints and c onnections must be tested t horoughl y for gas leak s. Use only soap y water for testing on
all gases. NEVER use an open flame to check f or gas leaks . All c onnec tions m us t be chec ked f or leak s af ter
the unit has been put into operation. Test pressure should not exceed 14" W.C.
! CAUTION
THIS APPLIANCE AND ITS INDIVIDUAL SHUTOFF VALVE MUST BE DISCONNECTED FROM
THE GAS SUPPLY PIPING SYST EM DURING ANY PRESSURE TESTING OF THAT SYSTEM AT
TEST PRESSURES IN EXCESS OF 1/2 PSIG (3.45 kPa).
THIS APPLIANCE MUST BE ISOLATED FRO M THE GAS SU PPLY PI PING SYST EM BY C LOSING
ITS INDIVIDUAL MANUAL SHUTOFF V ALVE DURING ANY PRESSURE TESTING OF THE GA S
SUPPLY PIPING SYSTEM AT TEST PRESSURES EQUAL TO OR LESS THAN 1/2 PSIG (3.45
kPa).
PAGE 4OPERATOR’S MANUAL 1178822 REV 3
MEDIUM DUTY COUNTERLINE SPECIFICATIONS
CLEARANCES
! WARNING
There must be adequ ate clear ance be twee n units and a djacent constr uction. C lear ance m ust als o be
provided for servicing and for operation.
Minimum Clearances from COMBUSTABLE construction:
Griddle Models Open Top Models
Sides 4" 4"
Back 4" 4"
Bottom 4" 4"
Minimum Clearances from NON-COMBUSTABLE construction:
Griddle Models Charbroiler Models Open Top Models
Sides 0" 0" 0"
Back 0" 0" 0"
Bottom 4" 4" 4"
SPECIFICATIONS
VENTILATION
! WARNING
Improper ventilation can result in personal injur y or death. Ventilation which f ails to properly rem ove
flue products can cause headaches, drowsiness, nausea, or could result in death.
All units must be installed in s uch a manner that the flow of com bustion and ventilation air are not
obstructed. Provis ions for adequ ate air suppl y must be pro vided. Do not obs truct the f ront of the unit
at the top by the control panel as combustion air enters through these areas.
NOTICE
Proper ventilation is t he owner’s responsibility. An y problem due to improper venti lation will not be
covered by the warranty.
All units must be installed in such a manner that the flow of combustion and ventilation air are not obstructed.
Provisions for an adequate air supply must be provided. Do not obstruct the front or rear of the unit, as
combustion air enters thro ugh th is area. Be sur e to i nspect a nd cl ean the vent ilation system accor ding to t he
ventilation equipment manufacturer’s instructions.
In case of unsatisf actory performance on an y appliance, check the applianc e with the hood exhaust fan in
the “OFF” position. Do th is only long enough to check equipment performance. T hen turn the fan back on
and let it run to remove any exhaust that may have accumulated during the test.
OPERATOR’S MANUAL 1178822 REV 3PAGE 5
SPECIFICATIONS MEDIUM DUTY COUNTERLINE
Figure 2
DIMENSIONS OF GRIDDLE & THERMOSTATIC-GRIDDLE MODELS
SPECIFICATIONS
1.7"
27.2"
TOP VIEW
Width (see table below)
3.9"
13.7"
9.8"
7.4"
14.0"
FRONT VIEW
2.8"
4" Adjustable Legs
SIDE VIEW
Model Width Number and Size of Burners Total BTU
MDG-24 & MDGT-24 24" 2 @ 20,000 40,000
MDG-36 & MDGT-36 36" 3 @ 20,000 60,000
MDG-48 & MDGT-48 48" 4 @ 20,000 80,000
2.2"
PAGE 6OPERATOR’S MANUAL 1178822 REV 3
MEDIUM DUTY COUNTERLINE SPECIFICATIONS
Figure 3
DIMENSIONS OF CHARBROILER MODELS
25.7"
TOP VIEW
Width (see table below)
SPECIFICATIONS
FRONT VIEW
7.8"
17.5"
9.7"
2.8"
4" Adjustable Legs
SIDE VIEW
Model Width Number and Size of Burners Total BTU
MDC-24 & MDCL-24 24" 2 @ 20,000 40,000
MDC-36 & MDCL-36 36" 3 @ 20,000 60,000
MDC-48 & MDCL-48 48" 4 @ 20,000 80,000
2.2"
OPERATOR’S MANUAL 1178822 REV 3PAGE 7
SPECIFICATIONS MEDIUM DUTY COUNTERLINE
Figure 4
DIMENSIONS OF OPEN TOP MODELS
SPECIFICATIONS
27.3"
TOP VIEW
Width (see table below)
FRONT VIEW
MDO-12 12" 2 @ 20,000 40,000
MDO-24 24" 4 @ 20,000 80,000
MDO-36 36" 6 @ 20,000 120,000
12.2"
10.1"
2.2"
Model Width Number and Size of Burners Total BTU
4" Adjustable Legs
SIDE VIEW
6.3"
PAGE 8OPERATOR’S MANUAL 1178822 REV 3
MEDIUM DUTY COUNTERLINE INSTALLATION
INSTALLATION
NOTICE
Installation must comply with National Fuel Gas Code, ANSI Z223.1, Natura l Gas Installation Code,
CAN/CGA-B149.1, or the Propane Installation Code, CAN/CGA-B149.2, as applicab le.
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 com es to installation req uirements for equ ipment. Theref ore, installations shou ld
comply with all local codes.
Step 1: Unpack
IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
INSTALLATION
All containers shou ld be examined for dam age before and during unlo ading. The freight car rier has
assumed responsibility for its 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: Covert Unit to Use Propane Gas (if necessary)
Each unit is shipped equ ipped with fixed orifice hoods appropriate for use with natural gas. If propane gas
will be used, convert the unit for use with propane gas by the following procedure:
1. Remove the front panel by removing the knobs and screws on the front.
2. For charbroiler and open top m odels, rem ove the grates and bur ners to acces s the orifices fr om above.
For griddle models, slide t he burner toward the rear of the unit to access the orifices (see diagram on
page 22), OR remove the griddle plate to access the orifices by removing two nuts at the rear of the unit.
3. Remove the natural gas orifices and install the furnished propane orifices.
4. Re-install the burners.
5. Re-install the front panel.
6. Remove the hex- threade d p lug from the pr essur e regula tor. I nsid e is a rem ovabl e ins ert. Pull the ins ert
out, turn it around, an d put it back in so th at the end with the l etters “LP” is now fac ing you. Re-attach
the hex-threaded plug. The pressure regulator is now set for 10" (25.4 cm) water column.
7. Check the pressure.
OPERATOR’S MANUAL 1178822 REV 3PAGE 9
INSTALLATION MEDIUM DUTY COUNTERLINE
Provided orific es are size #45 for natural gas and #55 for propane gas. For spec ial gas mixtures, and for
altitudes above 2,000 feet, consult factory for appropriate orifice sizes.
Step 3: Connect Gas Supply
All units are shipped from the factory equipped for use with natural gas. If the unit is to be used with propane
gas, the orifices must be replaced and the pressure regulator converted (see Step 2 on previous page).
If this equipment is being installed at over 2, 000 feet altitude and that inform ation was not specifie d when
ordered, contact the appropriate 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.
The serial plate is located interior side of the valve panel (see Fi gure 1 on page 3). It indicates the type of
gas the unit is equipped to burn. All Southb end equipment is adjus ted at the factory. Check type of gas on
INSTALLATION
serial plate.
These models are desig n- cer tif ied f or operat ion on natural or propane gases. For nat ur al gas, the convertible
regulator is set to deliver a 4" W.C. pressure to the manifold. For propane gas, it is set to deliver 10" W.C.
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.
This appliance should be connected ONLY to the type of gas for which it is equipped.
An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of gas
required for satisf actor y perform anc e. Fluctua tions of m ore than 25% on nat ural gas or 10% on propa ne g as
will create problems and affect burner operating characteristics. A 1/8" pressure tap is located on the
manifold to measure pressure.
An adequate gas supp l y li ne t o the u nit s hou ld be n o s maller than the I.D. of the pipe from the unit to which it
is connected.
Purge the supply line to clean out dust, dirt, or other foreign matter before connecting the line to the unit.
Use pipe joint compound that is suitable for use with 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.
Step 4: Position Unit for Operation
1. Check that the unit is level. The leng th of eac h l eg is adjus tab le b y scr e wing the bott om portion of the leg
in or out. The unit must be level for proper operation!
2. Check for adequate clearances around the unit (see page 5).
3. Check for adequate ventilation (see page 5).
PAGE 10 OPERATOR’S MANUAL 1178822 REV 3
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