Owner’s Manual
Restaurant Ranges
Models X536A, X536D, X560AA, X560AD, X560DD
S536A, S536D, S560AA, S560AD, S560DD
500 Series
IMPORTANT FOR FUTURE REFERENCE
Please complete this information and retain
this manual for the life of the equipment:
Model #: __________________________
Serial #: __________________________
Date Purchased: ___________________
Model X536D Model X560DD
WARNING
This appliance shall be installed in conformity with the current regulations and used only in a well ventilated
location. Consult the instructions before installing and using the appliance.
Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death.
Read installation, operation, and maintenance instructions thoroughly before installing or servicing this equipment.
1100 Old Honeycutt Road, Fuquay-Varina, NC 27526 USA • www.southbendnc.com
OWNER’S MANUAL 1188716 (02/07)
$21.00
500 SERIES RESTAURANT RANGES
MANUAL SECTION RR
SAFETY PRECAUTIONS 500 SERIES RESTAURANT RANGES
SAFETY PRECAUTIONS
Before installing and operating this equipment, be sure everyone involved in its operation is fully trained and aware of
precautions. Accidents and problems can be caused by failure to follow fundamental rules and precautions.
The following symbols, 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 practice that could result in injury or
death.
This symbol refers to a potential hazard or unsafe practice 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 gasoline or other flammable vapors and liquids in the vicinity of cookin g appliances.
Keep area around cooking appliances free and clear of combustibles.
Purchaser of equipment must post in a prominent location detailed instructions to be followed in the event the
operator smells gas. Obtain the instructions from the local gas supplier.
WARNING
BURN HAZARD
Contact with hot surfaces will cause severe burns. Always use caution when operating cooking appliances.
WARNING
EXPLOSION AND ASPHYXIATION HAZARD
In the event a gas odor is detected, shut down equipment at the main gas shut-off valve and immediately call
the emergency phone number of your gas supplier.
Improper ventilation can result in headaches, drowsiness, nausea, and could result in death. Do not obstruct the
flow of combustion and ventilation air to and from cooking appliances.
WARNING
ELECTRIC SHOCK HAZARD
For appliances that use electric power, disconnect the power to the appliance before cleaning. Do not remove
panels that require tools to remove.
NOTICE
This appliance is intended for commercial use, and is only for professional use. It shall be used by trained,
qualified people.
Warranty will be void if service work is performed by other than a qualified technician, or if other than genuine
Southbend replacement parts are installed.
Give this Owner’s Manual and important papers to the proper authority to retain for future reference.
Copyright © 2007 by Southbend. All rights reserved. Published in the United States of America.
PAGE 2 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES INTRODUCTION
INTRODUCTION
Congratulations! You have purchased one of the finest pieces of heavy-duty commercial cooking equipment on the
market.
You will find that your new equipment, like all Southbend equipment, has been designed and manufactured to meet
the toughest standards in the industry. Each piece of Southbend equipment is carefully engineered 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.
This manual is divided into six sections:
Introduction............................................3
Specifications.........................................4
Operation...............................................8
Cleaning & Maintenance........................11
Installation..............................................13
Service...................................................19
The serial plate is located on the inside surface of the kick panel (see Figure 1 below).
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 technician (a
person experienced in and knowledgeable with the installation of commercial gas and/or electric cooking equipment)
then the terms and conditions on the Manufacturer’s Limited Warranty 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:
Southbend
1100 Old Honeycutt Road
Fuquay-Varina, North Carolina 27526 USA
www.southbendnc.com
Figure 1
Location of Serial Plate
Serial Plate is Located on
Inside Surface of Kick Panel
OWNER’S MANUAL 1188716 (02/07) PAGE 3 OF 44
SPECIFICATIONS 500 SERIES RESTAURANT RANGES
SPECIFICATIONS
NOTICE
Local codes regarding installation vary greatly from one area to another. The National Fire Protection 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. Therefore, installations should comply with all local codes.
Southbend reserves the right to change specifications and product design without notice. Such revisions do not
entitle the buyer to corresponding changes, additions, or replacements for previously purchased equipment.
Southbend appliances are intended for commercial use only, not for household use.
The installation must conform 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, including:
1. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in excess of 1/2 psi (3.45 kPa).
2. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.45
kPa).
CLEARANCES
WARNING
MINIMUM CLEARANCES FROM COMBUSTIBLE CONSTRUCTION
There must be adequate clearance between ranges and combustible construction. Clearance must also be
provided for servicing and for operation.
Minimum Clearances:
Standard Oven Convection Oven Double Oven Base
Sides 10 inches 10 inches 10 inches
Back 10 inches 10 inches 10 inches
Floor zero zero zero
Ranges are suitable for installation on combustible floors.
Adequate clearance must be provided in the aisle and at the side and rear to allow the door to open sufficiently to
permit the removal of the racks and for serviceability.
On ranges with a convection-type oven, a minimum of 2 inches clearance must be allo wed behind the motor and
the rear non-combustible enclosure. Care must be taken to provide adequate air circulation to prevent the motor
from overheating. No additional clearance from the sides and back is required for service as the ranges are
serviceable from the front.
DIMENSIONS
The exterior dimensions of the restaurant range are shown in Figure 2 on the next page.
PAGE 4 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SPECIFICATIONS
Figure 2
Dimensions
Gas Connection
O
Electrical Connection
R
Gas Connection
O
Electric al Connections
R R
I
J
K
E
L
M
SideView of Ranges WITH Convection Oven Side View of Ranges WITHOUT Convect ion Oven
Model Number
536A
536D
560AA
560AD
560DD
See table on next page for dimensions O, P, Q, and R.
A B C D E F G H I J K
36.5"
(927)
36.5"
(927)
60.75"
(1543)
60.75"
(1543)
45.25"
(1149)
36"
(914)
45.25"
(1149)
36"
(914)
10"
(254)
10"
(254)
A
I
J
K
B
D D
C
Electrical
Connection
Q
L
NN
M
A
E
Exterior Dimensions in Inches and (Millimeters)
31.25"
(794)
31.25"
-
(794)
31.25"
(794)
31.25"
-
(794)
33"
(838)
33"
(838)
33"
(838)
33"
(838)
11"
(279)
11"
(279)
11"
(279)
11"
(279)
2.75"
(70)
2.75"
(70)
2.75"
(70)
2.75"
(70)
59.5"
(1511)
59.5"
(1511)
59.5"
(1511)
59.5"
(1511)
22.5"
(587)
22.5"
(587)
22.5"
(587)
22.5"
(587)
31.0"
(787)
31.0"
(787)
31.0"
(787)
31.0"
(787)
B
6"
(152)
6"
(152)
6"
(152)
6"
(152)
FF G
G
Gas Connection
Cook Top
Height
L
37.0"
(914)
37.0"
(914)
37.0"
(914)
37.0"
(914)
P
Door
Depth
M
15.5"
(394)
15.5"
(394)
15.5"
(394)
15.5"
(394)
Oven
Bottom
N
13"
(318)
13"
(318)
13"
(318)
13"
(318)
OWNER’S MANUAL 1188716 (02/07) PAGE 5 OF 44
SPECIFICATIONS 500 SERIES RESTAURANT RANGES
INTERIOR DIMENSIONS AND UTILITY DATA
Left (or Only) Oven
Model Number
X536A
X536D
X560AA
X560AD
X560DD
S536A
S536D
S560AA
S560AD
S560DD
* See figure on previous page for location of utility connections.
Interior Dimensions
Width Depth Height Width Depth Height Open Oven
26.125"
(664)
(660)
26.125"
(664)
26.125"
(664)
(660)
26.125"
(664)
(660)
26.125"
(664)
26.125"
(664)
(660)
26"
26"
26"
26"
24"
(610)
26.5"
(673)
24"
(610)
24"
(610)
26.5"
(673)
24"
(610)
26.5"
(673)
24"
(610)
24"
(610)
26.5"
(673)
14.25"
(362)
14"
(356)
14.25"
(362)
14.25"
(362)
14"
(356)
14.25"
(362)
14"
(356)
14.25"
(362)
14.25"
(362)
14"
(356)
Interior Dimensions
- - -
- - -
26.125"
(664)
26"
(660)
26"
(660)
- - -
- - -
26.125"
(664)
26"
(660)
26"
(660)
Right Oven
24"
(610)
26.5"
(673)
26.5"
(673)
24"
(610)
26.5"
(673)
26.5"
(673)
14.25"
(362)
14"
(356)
14"
(356)
14.25"
(362)
14"
(356)
14"
(356)
Burners
(number of and BTU/hour)
6@33,000 Nat
6@24,000 LP
6@33,000 Nat
6@24,000 LP
10@33,000 Nat
10@24,000 LP
10@33,000 Nat
10@24,000 LP
10@33,000 Nat
10@24,000 LP
6@27,000 Nat
6@21,000 LP
6@27,000 Nat
6@21,000 LP
10@27,000 Nat
10@21,000 LP
10@27,000 Nat
10@21,000 LP
10@27,000 Nat
10@21,000 LP
1@32,000 Nat
1@30,000 LP
1@45,000 Nat
1@40,000 LP
2@32,000 Nat
2@30,000 LP
1@32,000 and
1@45,000 Nat
1@30,000 and
1@40,000 LP
2@45,000 Nat
2@40,000 LP
1@32,000 Nat
1@30,000 LP
1@45,000 Nat
1@40,000 LP
2@32,000 Nat
2@30,000 LP
1@32,000 and
1@45,000 Nat
1@30,000 and
1@40,000 LP
2@45,000 Nat
2@40,000 LP
Total BTU/hour
230,000 Nat
174,000 LP
243,000 Nat
184,000 LP
394,000 Nat
300,000 LP
407,000 Nat
310,000 LP
420,000 Nat
320,000 LP
194,000 Nat
156,000 LP
207,000 Nat
166,000 LP
334,000 Nat
270,000 LP
347,000 Nat
280,000 LP
360,000 Nat
290,000 LP
Gas Connection
Location
O* P* Q* R*
3.25"
(82)
3.25"
(82)
3.25"
(82)
3.25"
(82)
3.25"
(82)
3.25"
(82)
3.25"
(82)
3.25"
(82)
3.25"
(82)
3.25"
(82)
30.25"
(768)
30.25"
(768)
30.25"
(768)
30.25"
(768)
30.25"
(768)
30.25"
(768)
30.25"
(768)
30.25"
(768)
30.25"
(768)
30.25"
(768)
Electric Connect.
Location
24"
(610)
24"
(610)
24"
(610)
24"
(610)
24"
(610)
24"
(610)
6"
(152)
- 6"
(152)
6"
(152)
- 6"
(152)
- 6"
(152)
6"
(152)
- -
VENTILATION
WARNING
Improper ventilation can result in personal injury or death. Ventilation which fails to properly remove flue products
can cause headaches, drowsiness, nausea, or could result in death.
All ranges must be installed in such a manner that the flow of combustion and ventilation air are not obstructed.
Provisions for adequate air supply must be provided. Do not obstruct the front of the range at the top by the control
panel, or the bottom just below the oven compartment, as combustion air enters through these areas.
NOTICE
Proper ventilation is the owner’s responsibility. Any problem due to improper ventilation will not be covered by the
warranty.
Be sure to inspect and clean the ventilation system according to the ventilation equipment manufacturer’s
instructions.
Canopies are set over ranges, ovens, etc., for ventilation purposes. It is recommended that a canopy extend 6" past
the appliance and the bottom edge be located 78" above the floor. Filters should be installed at an angle of 45° or
more from the horizontal. This position prevents dripping grease and facilitates collecting the run-off grease in a drip
pan, unusually installed with a filter.
A strong exhaust 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.
The exhaust fan should be installed at least 2" above the vent opening at the top of the range.
If the range is connected directly to an outside flue, a CSA design-certified down draft diverter must be installed at the
flue outlet of the oven and connected to the flue.
PAGE 6 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SPECIFICATIONS
In case of unsatisfactory performance on any appliance, check the appliance with the exhaust fan in the OFF position.
Do this only long enough to check equipment performance. Then turn hood back on and let it run to remove any
exhaust that may have accumulated during the test.
GAS SUPPLY
A 3/4" female NPT gas connection is located on the rear of the range (see Figure 2).
The serial plate is located on the right side of the range (See
range is equipped to burn. All Southbend equipment is adjusted at the factory. Check type of gas on serial plate.
These models are design-certified for operation on natural or propane gases. For natural gas, the regulator is set to 4"
W.C. (0.99 kPa). For propane gas, it is set to 10" W.C. (2.48 kPa).
If applicable, the vent 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 applicable national codes.
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
satisfactory performance. Fluctuations of more than 25% on natural gas or 10% on propane gas 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 line to the range should be no smaller than the inside diameter of the pipe from the range to
which it is connected.
Purge the supply line to clean out dust, dirt, or other foreign matter before connecting the line to the range.
All pipe joints and connections must be tested thoroughly for gas leaks. Use only soapy water for testing on all gases.
NEVER use an open flame to check for gas leaks. All connections must be checked for leaks after the range has
been put into operation. Test pressure should not exceed 14" W.C. (3.47 kPa).
Figure 1). The serial plate indicates the type of gas the
ELECTRICAL REQUIREMENTS
Ranges with a convection oven require connection to a supply of electricity. The appliance, when installed, must be
electrically grounded in accordance with local codes, or in the absence of local codes, with the applicable national
codes. An electrical diagram is located on the rear of the range, near the motor.
Usually the range is furnished with one or two power cords (one for each oven), each with a standard 115V, 60Hz,
single-phase prong plug. Total maximum power for 115V units is 4.8 amperes.
The range can be ordered to operate on 208V 60Hz 1-phase or 3-phase current, in which case the electric power
supply must be wired to one or two junction boxes (one for each oven), each with a terminal block on the rear of the
range. Total maximum power for 208V units is 2.6 amperes.
OWNER’S MANUAL 1188716 (02/07) PAGE 7 OF 44
OPERATION 500 SERIES RESTAURANT RANGES
OPERATION
DANGER
EXPLOSION AND ASPHYXIATION HAZARD
In the event a gas odor is detected, shut down equipment at the main gas shut-off valve and immediately call
the emergency phone number of your gas supplier.
Improper ventilation can result in headaches, drowsiness, nausea, and could result in death. Do not obstruct the
flow of combustion and ventilation air to and from cooking appliances.
CAUTION
To eliminate gas build up which could result in an explosion, in the event of main burner ignition failure wait five
minutes before attempting to relight the pilot or burner.
The controls for the burners and oven(s) are located on the valve panel on the front of the range.
If the pilots need to be lit, follow the steps listed in each section below.
LIGHTING AFTER GAS HAS BEEN SHUT OFF
When turning the main gas supply on after the gas supply has been shut off, do the following:
1. Make sure the gas supply valve, located on the front valve panel, is in the OFF position.
2. Make sure all of the control valves are in the OFF position.
3. Turn on the incoming gas supply.
4. Turn the gas supply valve, located on the front valve panel, to the ON position.
5. Light the pilots as described below.
6. Light the oven first and then wait six minutes before lighting top burners to purge all air from the range.
OPERATION OF TOP BURNERS
To operate a top burner, turn the corresponding control knob on the front panel to the desired flame level.
Each top burner has its own pilot. If a top-burner pilot needs to be lighted, do the following:
1. Turn all the top-burner control knobs to the OFF position.
2. On S500 models, turn one of the top-burner control knobs to the pilot position, push the knob inward, and
hold it in place. Depress and hold down the spark switch (the black button between the control valves). A
spark from the ignitor to the pilot can be seen and heard. When the pilot lights, release the spark switch, but
continue holding the knob in for 30 to 45 seconds. When the knob is released, the pilot should remain lit.
On X500 models, depress and hold down the spark switch (the black button between the control valves). A
spark from the ignitor to the pilot can be seen and heard. When the pilot lights, release the spark switch.
3. Repeat step 2 for the all other top-burner pilots that need to be lighted.
OPERATION OF OVEN
To operate an oven, turn the oven-thermostat knob on the front panel to the desired temperature. On convection
ovens, the blower is controlled by an ON-OFF switch.
Each oven has its own pilot. If an oven pilot needs to be lighted, do the following:
1. Turn the oven thermostat to the OFF position.
2. For convection ovens, turn the fan switch to the OFF position.
3. Open the oven door and remove the oven bottom and fire plate to expose pilot and burner.
4. Open the kick panel below the oven door and depress red button on oven safety valve.
5. Light constant pilot (the pilot without a capillary tube holder).
6. Close the kick panel and replace the fire plate and oven bottom.
PAGE 8 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES OPERATION
SHUTDOWN OF ENTIRE RANGE
To completely shut down the range for an extended period (or prior to disconnecting the gas su pply), do the following:
1. Turn all burner control knobs to OFF.
2. Turn the oven thermostat knob(s) to the lowest temperature.
3. Turn the main gas valve on the valve panel to OFF.
4. Turn-off the gas supply to the oven.
TROUBLESHOOTING BY OPERATOR
The following table lists the possible causes and solutions of problems that may occur during operation.
Problem Possible Causes and Solutions
A top burner will not light. – Check pilot position.
– Check and light the burner’s pilot.
– Check gas supply to range.
Oven will not heat up. – Check and light the oven pilot.
– Check gas supply to range.
Blower of convection oven is not running. – Check that the oven’s blower control switch is in ON position.
– Check electricity supply to range.
Pilot(s) will not remain lit. – Check gas supply to range.
– Check pilot adjustment.
If other appliances connected to the same source of gas or electricity are also not operating correctly, the problem is
likely not within the range.
If the problem only occurs for the range, and if the above solutions to do not solve the problem, call for repair service.
TROUBLESHOOTING CONVECTION-OVEN COOKING PROBLEMS
If… then…
Cakes are dark on the sides and not done in the center… lower oven temperature.
Cake edges are too brown… reduce number of pans or lower oven temperature.
Cakes have light outer color… raise temperature.
Cake settles slightly in the center… bake longer or raise oven temperature slightly. Do not
open doors too often for long periods.
Pies have uneven color… reduce number of pies per rack.
Meats are browned and not done in center… lower oven temperature and roast longer.
Meats are well done and not browned… raise temperature. Limit amount of moisture.
Cakes ripple… overloading pans or batter is too thin.
There is excessive meat shrinkage… lower oven temperature.
Cakes are too coarse… lower oven temperature.
WARNING
THE USE OF ALUMINUM FOIL CAN CAUSE HEAT DISTRIBUTION PROBLEMS IN OVENS. EXTREME
CARE MUST BE USED WHEN PLACING ALUMINUM FOIL IN THE OVEN TO ENSURE THAT IT DOES NOT
BLOCK OR CHANGE THE AIR FLOW. THE USE OF ALUMINUM FOIL MAY VOID THE PRODUCT
WARRANTY IF ITS USE IS ASCERTAINED TO BE A PROBLEM.
OWNER’S MANUAL 1188716 (02/07) PAGE 9 OF 44
OPERATION 500 SERIES RESTAURANT RANGES
COOKING TIPS FOR CONVECTION OVENS
As a guide, set oven temperatures 25 to 50 degrees lower than called for in recipes using conventional (nonconvection) ovens.
FROZEN ENTREE PRODUCTS: Punch holes in lid before heating. Tent lid if product has a tendency to stick, i.e.,
lasagna or macaroni and cheese. Use manufacturer’s convection oven directio ns for time and temperature or reduce
conventional oven temperature 50 degrees for a 6-1/2 size pan load. Some products may cook in 10 to 15 minutes
less time than recommended for convection ovens if prepared from frozen in a 6 pan load.
Time and temperatures will vary depending upon load, mix, size of portion, and other factors. Use the following chart
to develop your own cooking techniques:
Product
Hamburger buns, 3 oz. - 4" 18 375° 2 24
Timing
(minutes)
Temperature
Setting
Number of
Racks Used
Count per
Pan/Rack
Yeast rolls - 1 oz.
10 400° 2 48
Use temperature and time recommended by
manufacturer for convection ovens for a 3 pan load.
Fruit pies, 46 oz. frozen
50 375° 2 4
Use temperature and time from manufacturer’s directions
for convection ovens for a 12 pie load placed on 3 bun
pans.
Egg custard pies, 44 oz. frozen 60 325° 2 4
Dutch apple pies, 46 oz. frozen 50 350° 2 4
Baked potatoes, 8 oz.
60 400° 2 30 (wrapped)
Wash and wrap in potato foil. Place 30 potatoes on 18 x
24 bun pan — 3 pans per load. Bake in 400°F oven for 1
hour.
Pre-blanched potatoes, frozen
16 400° 2 5 lb.
Spread on ungreased bun pans, 3 pans per load. Bake
at 400°F, stirring once, for 15 to 18 minutes.
Fish portions, pre-cooked, breaded, 3 oz.
16 400° 2 32
Use manufacturer’s recommended temperature and time
for convection oven for a 3 pan load.
Macaroni & cheese, 6 lbs. - 40° temp. 45 400° 2 2-6 lbs.
Lasagna w/meat sauce, 6 lb. - 40° temp. 60 350° 2 2 - 6 lbs.
Lasagna w/meat sauce, 6 lb. - frozen 75 350° 2 2-6 lbs.
Salisbury steak w/gravy, 6 lb. - 40° temp. 45 400° 2 2-6 lbs.
Top round of beef No. 168
14 lb. - rare
140° internal
250° 1 1 - 2
14 min./lb.
14 lb. - medium
150° internal
250° 1 1 - 2
14 min./lb.
14 lb. - well done
160° internal
250° 1 1 - 2
14 min./lb.
PAGE 10 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES CLEANING & MAINTENANCE
CLEANING & MAINTENANCE
WARNING
Shut off the range and allow time for it to cool before cleaning or performing maintenance.
Southbend appliances are sturdily constructed of the best materials and are designed to provide durable service when
treated with ordinary care. To expect the best performance, your equipment must be maintained in good condition and
cleaned daily. Naturally, the periods for this care and cleaning depend on the amount and degree of usag e.
Following daily and periodic maintenance procedures will enhance long life for your equipm ent. Climatic conditions
(such as salt air) may require more thorough and frequent cleaning or the life of the equi pment could be adversely
affected.
Keep exposed, cleanable areas clean at all times.
DAILY CLEANING
1. Turn all controls to OFF and allow time for the range to cool.
2. Remove, empty, and clean drip trays.
3. Wipe clean all cooking surfaces.
CLEANING OVEN INTERIOR
WARNING
FOR YOUR SAFETY, BEFORE CLEANING A CONVECTION OVEN DISCONNECT THE POWER SUPPLY.
WHEN CLEANING THE BLOWER WHEEL, BE SURE THAT THE POWER SWITCH IN THE “OFF” POSITION.
Allow oven to cool. Remove porcelain enameled oven bottom. Clean by rubbing with strong detergent and Brillo pad
or similar scrubber. “Spill-overs” should be cleaned from the bottom as soon as possible to prevent carbonizing and a
“burnt-on” condition. For stubborn accumulations, commercial oven cleaners are recommended.
The porcelain oven door lining can be cleaned in a similar manner.
The side, rear and top lining should be wiped only with a cloth dampened with a mild detergent and water. Avoid using
excessive amounts of water, as this may drip into burner compartment and deteriorate the metal in that area. Do not
use strong commercial cleaners or abrasive pads on the side, rear or top linings, as they may damage the finish or
leave gray residue.
PERIODIC CLEANING AND MAINTENANCE
At least monthly, clean around burner air mixers and orifices if lint has accumulated and visually check proper pilot
operation.
At least twice a year, examine and clean the range hood and venting system.
If range-top spillage should occur, it may be necessary to clean around pilot areas, air mixer, and under burners. Use
a wire brush if necessary.
If any burners become clogged, remove and clean them. Allow interior to drain. Dry thoroughly before replacing.
BLUE BAKED-ENAMEL SURFACES
Wash exterior blue baked-enamel surfaces with a hot, mild detergent or soap solution to clean off all grease deposits.
Dry thoroughly with a dry cloth.
OWNER’S MANUAL 1188716 (02/07) PAGE 11 OF 44
CLEANING & MAINTENANCE 500 SERIES RESTAURANT RANGES
STAINLESS-STEEL SURFACES
To remove normal dirt, grease and product residue from stainless steel surfaces that operate at LOW temperature,
use ordinary soap and water (with or without detergent) applied with a sponge or cloth. Dry thoroughly with a clean
cloth.
To remove BAKED-ON grease and food splatter, or condensed vapors; apply cleanser to a damp cloth or sponge and
rub cleanser on the metal in the direction of the polishing lines on the metal. Rubbing cleanser, as gently as possible,
in the direction of the polished lines will not mar the finish of the stainless steel. NEVER RUB WITH A CIRCULAR
MOTION. Soil and burnt deposits which do not respond to the above procedure can usually be removed by rubbing
the surface with SCOTCH-BRITE scouring pads or STAINLESS scouring pads. DO NOT USE ORDINARY STEEL
WOOL as any particles left on the surface will rust and further spoil the appearance of the finish. NEVER USE A
WIRE BRUSH, STEEL SCOURING PADS (EXCEPT STAINLESS), SCRAPER, FILE OR OTHER STEEL TOOLS.
Surfaces which are marred collect dirt more rapidly and become more difficult to clean. Marring also increases the
possibility of corrosive attack. Refinishing may then be required.
“Heat tint” is darkened areas that sometimes appear on stainless steel surfaces where the area has been subjected to
excessive heat. These darkened areas are caused by thickening of the protectiv e surfa ce of t he stainless steel and
are not harmful. Heat tint can normally be removed by the foregoing, but tint which does not respond to this procedure
calls for a vigorous scouring in the direction of the polish lines using SCOTCH-BRITE scouring pads or a STAINLESS
scouring pad in combination with a powered cleanser. Heat tint may be lessened by reducing heat to equipment
during slack periods.
BRIGHT-ANNEALED STAINLESS-STEEL SURFACES
To remove normal dirt, grease and product residue from stainless steel surfaces that operate at LOW temperature,
use ordinary soap and water (with or without detergent) applied with a sponge or cloth. Dry thoroughly with a clean
cloth.
Never use any abrasive cleaner, pad, wire brush, scrapper, or file to remove material from the bright-annealed
surfaces.
PAGE 12 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES INSTALLATION
INSTALLATION
NOTICE
These installation procedures must be followed by qualified personnel or warranty will be void.
Local codes regarding installation vary greatly from one area to another. The National Fire Protection 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. Therefore, installations should comply with all local codes.
The installation must conform 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, including:
1. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in excess of 1/2 psi (3.45 kPa).
2. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.45
kPa).
NOTICE
EXHAUST FANS AND CANOPIES: It is recommended that the range be installed under a ventilation hood.
Consult local codes for proper installation of hoods. Proper ventilation is the owner’s responsi bility. Any problem
due to improper ventilation will not be covered by warranty.
NOTICE
In the Commonwealth of Massachusetts all gas appliances vented by either mechanical systems or ventilation
hoods shall comply with 248 CMR interlocking requirements.
STEP 1: UNPACKING
IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
All containers should be examined for damage before and during unloading. The freight carrie r has assumed
responsibility for its safe transit and delivery. If damaged equipment is received, either apparent or conceal ed, a
claim must be made with the delivering carrier.
Apparent damage or loss must be noted on the freight bill at the time of delivery. The freight bill must then be
signed by the carrier representative (Driver). If the bill is not signed, the carrier may refuse the claim. The carrier
can supply the necessary forms.
A request for inspection must be made to the carrier within 15 days if there is concealed 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.
Do the following:
1. Cut the banding straps and remove the corrugated cardboard surrounding the range. If legs were shipped in
the same container, set them aside for installation in later steps of this procedure. Do not remove any tags or
labels attached to the range until the range is installed and working properly.
2. Lift the flue riser off the front of the skid (see
3. Pull the shelf assembly out from under the base and set it aside for installation later in this procedure.
4. Unbolt the shipping hold-down brackets from the skid, then remove the brackets from the range.
5. If the range is to be installed on legs, go to Step 2a.
If the range is to be installed on casters, go to Step 2b.
Figure 3) and set it aside for installation later in this procedure.
OWNER’S MANUAL 1188716 (02/07) PAGE 13 OF 44
INSTALLATION 500 SERIES RESTAURANT RANGES
Figure 3
Unpacking
Base
Flue Riser
Shelf
Skid
STEP 2A: ATTACH LEGS
A set of four legs is packed with ranges ordered with legs. (For ranges ordered with casters, go to Step 2b .)
A threaded leg pad is fastened to the base frame at each corner. Each leg has a correspondin g mating thread. The
legs can be adjusted to overcome a slightly uneven floor.
1. Raise range sufficiently to allow leg pads and legs to be attached. For safety, “shore up” and support the range
with an adequate blocking arrangement strong enough to support the load.
2. Attach the four leg pads to the bottom of the range using the lock washers and machine screws. The
mounting holes are pre-drilled and threaded.
3. Screw the legs into the holes in the centers of the leg pads.
4. Lower range gently onto a level surface. Never drop or allow the range to fall.
5. Use a level to make sure that the range surface is level. The legs can be screwed in or out to lower or raise
each corner of the range.
6. Go on to Installation Step 3.
Figure 4
Installation of Legs
PAGE 14 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES INSTALLATION
STEP 2B: ATTACH CASTERS AND RESTRAINT
NOTICE
For an appliance equipped with casters, (1) 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 QuickDisconnect Devices for Use With Gas Fuel, ANSI Z21.41, or Quick Disconnect Devices for Use with Gas Fuel,
CAN1-6.9, (2) adequate means must be provided to limit the movement of the appliance without depending on
the connector and the quick-disconnect device or its associated piping to limit the appliance movement, and (3 )
the restraining means should be attached to a frame member on the back of the unit.
A set of four casters is packed with ranges ordered with casters (instead of legs).
A threaded leg pad is fastened to the base frame at each corner. Each caster has a corresponding mating thread. The
casters can be adjusted to overcome a slightly uneven floor. Casters are provided with a Zerk fitting for proper
lubrication when required.
1. Raise range sufficiently to allow leg pads and casters to be attached. For safety, “shore up” and support the
range with an adequate blocking arrangement strong enough to sup port the load.
2. Attach the four leg pads to the bottom of the range using the lock washers and machine screws. The
mounting holes are pre-drilled and threaded.
3. Screw the casters into the holes in the centers of the leg pads. Install the casters that have a locking brake
under the front of the range.
4. Lower range gently onto a level surface. Never drop or allow the range to fall.
5. Use a level to make sure that the range surface is level. The casters can be screwed in or out to lower or raise
each corner of the range. After the range has been leveled, tighten the lock nuts.
Figure 5
Installation of Casters
6. Secure the restraining-device bracket (item “B” in the following illustration) to a wall stud located as close as
possible to the appliance connector inlet and outlet connections. Use four #12 screws (items “C”) and plastic
anchors (items “A”) if necessary.
7. Install eye-bolt (item “F”) to a frame member on the rear of the equipment. After checking carefully behind the
frame member for adequate clearance, drill a 7 mm hole through the frame member.
8. Thread hex nut (item “G”) and slide the washer (item “H”) onto the eye-bolt. Insert the eye-bolt through the 7
mm drilled hole and secure with a washer (item “H”) and nylon lock nut (item “I”).
9. Using the spring-loaded snap hooks, attach the restraining device to the bracket and the eye-bolt.
OWNER’S MANUAL 1188716 (02/07) PAGE 15 OF 44
INSTALLATION 500 SERIES RESTAURANT RANGES
10. Using the cable clamp (item “D”), adjust the restraining device extended length to prevent over-bending or
kinking of the appliance connector.
Figure 6
Installation of Restraint
A
D
E
H
F
C
G
I
B
Be sure all controls are turned off prior to disconnecting. After reconnecting, be sure all controls are turned off and all
pilots are lit.
NOTICE
Adequate means must be provided to limit the movement of the appliance without depending on the connector
and the quick-disconnect device or its associated piping to limit the appliance movement.
The restraining means should be attached to a frame member on the back of the range.
PAGE 16 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES INSTALLATION
STEP 3: ATTACH FLUE RISER AND SHELF ASSEMBLY
Place the flue riser assembly on the range as shown on the appropriate diagram below.
1. Slide the flue riser assembly over the bayonets until it bottoms out, as shown below.
2. Secure ends of flue riser assembly with two (2) 1/4-20 x 3/4 hex head bolts, flat washers and lockwashers
3. Attach the shelf assembly to the flue riser assembly.
Figure 7
Installation of Flue Riser and Shelf Assembly
Single-Oven Models Dual-Oven Models
STEP 4: ELECTRICAL CONNECTION (FOR CONVECTION-OVEN MODELS ONLY)
Wiring diagrams are located on the rear of the range. Be sure that the input voltage and phase match the
requirements shown on the serial plate (see
Ranges are factory-equipped either with a power cord or with one or two two-pole terminal blocks (one for each oven),
located behind cover plate(s) located on the rear of the range. To connect the supply wires, remove the appropriate
cover plate. Route the supply wires and the grounding wire through the strain relief fitting to the terminal block. Insert
the supply wires, one each, into the two poles of the terminal block and tighten the screws. Insert the ground wire into
the grounding lug and tighten the screw. Re-attach the cover plate.
Three phase ranges are wired as above, using only two supply wires. The third wire is not used and must be properly
terminated.
All ranges are shipped wired as specified by factory order. Conversion between single-phase and three-phase can be
accomplished by referring to phase loading and line amperes chart on wiring diagram for wire size and ampere
requirements.
Figure 1 on page 3).
STEP 5: GAS CONNECTION
If this equipment is being installed at over 610 meters altitude and that information was not specified 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 on the interior side of the kick panel below the oven. It indicates the type of gas the range is
equipped to burn. All Southbend equipment is adjusted at the factory. Check type of gas on serial plate.
OWNER’S MANUAL 1188716 (02/07) PAGE 17 OF 44
INSTALLATION 500 SERIES RESTAURANT RANGES
These models are design-certified for operation on natural or propane gases. For natural gas, the regulator is set to
deliver gas at 0.99 kPa (4" W.C.) pressure to the manifold. For propane gas, it is set to 2.48 kPa (10" W.C.).
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
satisfactory performance. Fluctuations of more than 25% on natural gas or 10% on propane gas will create problems
and affect burner operating characteristics. A 1/8" pressure tap is located on the manifold to measure the manifold
pressure.
The gas supply line to the range should be no smaller than the inside diameter of the pipes to whi ch it is co nnected.
Purge the supply line to clean out dust, dirt, or other foreign matter before connecting the line to the range.
CAUTION
ALL PIPE JOINTS AND CONNECTIONS MUST BE TESTED THOROUGHLY FOR GAS LEAKS. USE ONLY
SOAPY WATER FOR TESTING ON ALL GASES. NEVER USE AN OPEN FLAME TO CHECK FOR GAS
LEAKS. ALL CONNECTIONS MUST BE CHECKED FOR LEAKS AFTER THE RANGE HAS BEEN PUT INTO
OPERATION. TEST PRESSURE SHOULD NOT EXCEED 14" W.C. (3.47 kPa).
STEP 6: CHECK THE INSTALLATION
Check the installation of the range, as follows:
1. Check that all screws and bolts are tightened.
2. Check that the electrical and gas connections have been made correctly.
3. With the range in the position that it will be operated, check that the range is level. If not, adjust the legs or
casters.
4. Check that the appropriate minimum clearances are satisfied (see page
5. Check that the oven door(s) open and close properly.
6. Check that there is sufficient clearance in front of the range to open the oven door.
7. Wipe clean all surfaces.
4).
STEP 7: CHECK OPERATION
Check the operation of the range, as follows:
1. Turn on the gas supply and, for convection-oven models, the electric power supply.
2. Light the burner pilots and oven pilot(s), starting with the top burner farthest from the gas input in order to
purge the system of air. Check for proper pilot-flame height and adjust pilots, if necessary.
3. Turn on the oven and all burners at the same time. Check for correct burner operation and adjust the air
shutters, if necessary.
4. On convection-oven models, turn on the blower(s) and check for proper operation.
5. Turn off the burners and oven.
STEP 8: SHUT-DOWN AND WIPE-CLEAN RANGE
Complete the installation by leaving the range ready for customer use:
1. Allow the range to cool.
2. Wipe clean all surfaces.
3. Unless the range is to be placed in service immediately, turn off the gas supply and (for convection-oven
models, the electricity supply.
4. Make sure that a copy of this manual will be available to the people who will operate and maintain the range.
PAGE 18 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
SERVICE
WARNING
ADJUSTMENTS AND SERVICE WORK MAY BE PERFORMED ONLY BY A QUALIFIED TECHNICIAN WHO IS
EXPERIENCED IN, AND KNOWLEDGEABLE WITH, THE OPERATION OF COMMERCIAL COOKING
EQUIPMENT. TO ASSURE YOUR CONFIDENCE, CONTACT YOUR AUTHORIZED SERVICE AGENCY FOR
RELIABLE SERVICE, DEPENDABLE ADVICE OR OTHER ASSISTANCE, AND FOR GENUINE FACTORY
PARTS.
NOTICE
INSTALLATION OF OTHER THAN GENUINE SOUTHBEND PARTS WILL VOID THE WARRANTY ON THIS
EQUIPMENT.
The serial plate are located on the right side of the range (see Figure 1 on page 3).
Replacement parts (including parts not listed in this manual) may be ordered either through a Southbend Authorized
Parts Distributor or a Southbend Authorized Service Agency.
When ordering parts, please supply the Model Number, Serial Number, Part Number, and Part Description.
In case of problems in operation at initial installation, check type of gas and manifold pressure and compare with
information listed on the serial plate.
This section contains troubleshooting flowcharts, procedures, and electric schematics to assist a qualified service
technician in the servicing of a Southbend Model S500 Restaurant Range.
TROUBLESHOOTING FLOWCHARTS, PROCEDURES, AND WIRING DIAGRAMS
Find the symptom below that corresponds to the malfunction, then turn to the corresponding page. Follow the
flowchart on that page until the problem is solved.
Troubleshooting Flowchart, Procedure, or Wiring Diagram Page
Troubleshooting Open-Top Burners
Troubleshooting Base Oven 21
Troubleshooting Convection-Oven Blower 22
Adjustment of Gas Pressure Regulator 24
Adjustment of Open-Top Pilots 25
Adjustment of Open-Top Burners 25
Adjustment of Oven Standing Pilot 25
Adjustment of Oven Burner 25
Adjustment of Oven Bypass Flame Level 25
Calibration of Oven Thermostat 26
Conversion from One Type of Gas to Another 27
Wiring Diagram for 115 Volt Models 28
Wiring Diagram for 208-230 Volt Models 29
20
OWNER’S MANUAL 1188716 (02/07) PAGE 19 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
p
TROUBLESHOOTING OPEN-TOP BURNERS
Each open-top burner should have a steady blue flame on each port of the burner. Propane burn ers may have a small
amount of yellow tipping, and may make a slight popping noise when turned off.
If the flame is rising up off of the ports, adjust the burner shutter so it is more closed. If the flame is long and yellow
adjust the burner shutter so it is more open.
Consult the following table and the flowchart on this page.
Problem Look for -
No burners or pilots in the range will turn on. – Main gas supply to range is OFF.
All burners produce excessive carbon deposits. – Incorrect gas type supplied to range.
– Incorrect supply pressure.
Only some burners in a range produce excessive carbon
deposits.
– Incorrect orifices.
– Primary air not adjusted properly.
Only some pilots produce excessive carbon deposits. – Pilot gas not adjusted properly.
– Incorrect pilot orifice.
Top burner will not come on, but oven will come on. – Control valve for top burner is in OFF position.
– Pilot out.
Open-top burner pilot will not stay ignited. – Pilot gas not adjusted properly.
– Clogged orifice.
– Draft condition.
– Improper ventilation system.
– Air in gas line.
– Thermocouple bad.
Figure 8
Troubleshooting Open-Top Burners
Open-top burners are not working correctly.
Check that the burners are set level in their support brackets.
Check that the burners are clean and that their ports are clear.
Remove each burner and check that the venturi is clean and free of
buildup and debris. Also check that the orifice size is correct and
Remove the burner control knobs and carefully lower the valve
panel. CAUTION! Convection oven models have wiring attached
Check that each burner valve and orifice is in alignment with the
Check the pressure of the gas supply with all the gas appliances
connected to the supply turned fully on. The inlet pressure (before
entering the pressure regulator for the range) must be in the range
3.5" to 5" W.C. (0.87 to 1.24 kPa) for natural gas, or in the range
10" to 11" W.C. (2.48 to 2.73 kPa) for propane. Adjust the pressure
Check the pressure of the gas manifold of the range (after the gas
PAGE 20 OF 44 OWNER’S MANUAL 1188716 (02/07)
that it is clean and free of buildup and debris.
behind the
corresponding burner.
and/or capacity of the gas supply, if necessary.
leaves the pressure regulator for the range). See page 25.
anel.
500 SERIES RESTAURANT RANGES SERVICE
TROUBLESHOOTING BASE OVEN
CAUTION
Proper and efficient operation of oven is dependent on correct installation and function of components. Always
verify that components are in place and functioning as intended.
Consult the following table and the flowchart that begins on the following page.
Problem Look for -
Oven will not come on. – Oven pilot is out.
Oven pilot will not stay ignited – Pilot gas not adjusted properly.
– Bad thermocouple.
– Bad thermocouple connections at safety valve.
– Bad safety.
– Clogged orifice.
– Draft condition.
– Improper ventilation system.
– Air in gas line.
Figure 9
Troubleshooting Oven Pilot
Check whether the pilot flame is lit by looking through the hole in
the bottom of the oven. Leave the oven door open for five minutes
If the pilot is not lit, attempt to light the pilot by raising the kick panel
slightly and rotating its top edge outward. Press and hold the red
button on the oven safety valve and put a flame to the pilot.
No Yes
Check that the oven pilot adjustment on the manifold is open.
If the pilot still will not light, do the following: Remove the oven
bottom. Loosen the pilot nut on the burner bracket. Remove the
pilot tube from the safety valve. Remove the pilot orifice from the
pilot or end of the tube and check for debris.
Re-install the pilot orifice and tubing.
Oven pilot does not work.
to allow gas fumes to clear.
Does the pilot light?
Continue to hold the red button for 30 seconds. The pilot should
remain lit after the button is released. If it does not, wait five
minutes and try again.
If the pilot will not remain lit, do the following: Remove the
thermocouple from the safety valve. Install a thermocouple adapter
between the safety valve and the thermocouple to measure the
direct-current millivoltage produced by the thermocouple. While
holding the red button, light the pilot and measure the voltage
produced by the thermocouple. If the voltage does not rise above
10 millivolts, adjust the pilot valve and retest. If the voltage still does
not quickly rise above 10 millivolts, replace the thermocouple.
If instead the thermocouple is working properly, replace the safety
valve.
OWNER’S MANUAL 1188716 (02/07) PAGE 21 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
p
TROUBLESHOOTING CONVECTION-OVEN BLOWER
WARNING
Before attempting to service or replace any electrical component, make sure power source has been
disconnected.
CAUTION
When changing motor or servicing range, always verify that blower wheel rotation is clockwise when lo oking into
the oven cavity.
The motor is serviceable from the front of the range through the oven cavity. Remove the back lining. Disconnect the
motor mount plate by removing the eight hex nuts that secure it to the oven interior back. Pull the mount plate, with
motor attached, into the oven.
Motor lubrication information can be found on permanent label located on motor.
If the blower does not run at all, consult the flowchart that begins on the next page. If the blower runs intermittently,
consult the flowchart on this page.
The appropriate wiring diagram for the oven can be found on the rear of the oven (as well as at the end of this section
of this manual).
Figure 10
Convection-Oven Blower Runs Intermittently
Convection-oven blower runs intermittently.
No Yes
DISCONNECT POWER AT CIRCUIT BREAKER.
Check all wiring for loose connections or breaks.
Remove the cover from the junction box on the back of the range.
Disconnect the black wire and place an ammeter in the circuit.
CAUTION: Check that the ammeter is rated for at least 40
amperes! Reconnect the power to the range and turn on the
blower switch while watching the ammeter. The reading should
surge and then return to the rated current of the motor when
running at high speed. If the measured current exceeds the motor
rating, replace the blower motor.
Does the problem
occur only when the oven
is hot?
Check that there are no air-flow obstructions around the range.
Check that the blower motor is not pressing against the wall
Check that the blower motor air vents are not obstructed.
Check for excessive grease and dust buildup on the motor.
Check for sources of excessive heat behind the range.
With the blower turned ON, turn the oven thermostat to OFF and
allow the oven to cool. If the blower motor runs continuously
when the oven is cool, turn the oven thermostat to the highest
setting. If the blower motor shuts off when the oven becomes hot,
and if there are no sources of excessive heat around the blower
behind the range.
Check for hot-air leaks around the motor pocket.
motor, re
lace the blower motor.
PAGE 22 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
Figure 11
Convection-Oven Blower Does Not Run
Convection-oven blower does not run.
DISCONNECT POWER AT CIRCUIT BREAKER.
Remove the control knobs from the front of the range. Remove the
screws that secure the top of the valve panel and carefully tilt the
panel forward to expose the back of the blower switch that is
mounted in the front panel. CAUTION: Be careful not to damage
the wiring behind the control panel. Remove the protective cover
Check that the switch wires and terminals are secure.
Use a multimeter to check the continuity across the terminals of
blower-switch wires 1 and 3 (refer to the appropriate wiring diagram
in this manual or on the range). With the switch in the ON position,
from the blower control switch.
there should be continuity.
No Yes
Replace the blower control switch.
Re-assemble the switch cover and valve panel. Turn on the blower-
control switch and open the oven door.
No Yes
DISCONNECT POWER AT CIRCUIT BREAKER.
Open the kick panel below the oven door by raising it slightly and
tilting the top edge outward. Locate the door switch and check for
continuity across the wired switch terminals while pressing the
switch actuator lever.
Is there continuity?
Does the blower
run with the oven door
Reconnect the power supply. Use a voltmeter to measure the
voltage across the center terminals of switch wires 1 and 2.
Yes No
open?
DISCONNECT POWER AT CIRCUIT BREAKER.
Open the kick panel below the oven door by raising it slightly and
tilting the top edge outward. Locate the door switch and check that
one wire is connected to the common (90° bottom) terminal of the
switch. Move the other wire to the normally open (lower leg)
terminal on the side of the door switch.
Does the measured
voltage match the rated voltage
of the range?
Check power supply to range.
No Yes
Replace door switch. Close the oven door (which should
Loosen the two screws on the door switch bracket and adjust it so
that the door switch is pressed when the oven door is closed.
Is there continuity?
press the door-switch actuator lever).
No Yes
Is there continuity?
OWNER’S MANUAL 1188716 (02/07) PAGE 23 OF 44
Continue on next page.
SERVICE 500 SERIES RESTAURANT RANGES
Figure 12
Convection-Oven Blower Does Not Run, Continued
(Continuing from previous page.)
CHECK THAT POWER IS DISCONNECTED
Remove the wire terminal cover from the blower motor.
Check that the red wire is capped off.
Remove the wire nuts from the black and the white wires. Check
that in each case the wires are twisted together securely.
Check that the common wire is connected to the motor black wire.
Check that the neutral wire is connected to the white wire.
Reconnect the power supply and turn on blower-control switch.
Use a voltmeter to measure the voltage between the black wire and
No Yes
DISCONNECT POWER AT CIRCUIT BREAKER.
Check all wiring for loose terminals or breaks.
AT CIRCUIT BREAKER.
the white wire.
Is there voltage?
DISCONNECT POWER AT CIRCUIT BREAKER.
Remove the wire nuts from the red, white, and black wires.
Check that the resistance across the white and black wires is
approximately 1.9 ohms. Check that the resistance across the
white and red wires is also approximately 1.9 ohms. If either
resistance is incorrect, replace the blower motor.
ADJUSTMENT OF GAS PRESSURE REGULATOR
The pressure regulator is factory set at 4" W.C. (0.99 kPa) for natural gas and 10" W.C. (2.48 kPa) for propane gas.
To check the manifold pressure:
1. Turn all thermostats and burner valves to OFF position.
2. Turn main gas valve to entire range off.
3. Remove valve panels and locate the small plug in the manifold.
4. Remove plug and install a fitting appropriate to connect a manometer.
5. Turn on main gas to range and light pilots.
6. Turn all burners and ovens to full ON position and read manometer.
7. If manometer does not read 4" W.C. (0.99 kPa) for natural gas, or 10" W.C. (2.48 kPa) for propane gas, adjust
regulator (if gas pressure is correct go to Step 10).
8. Remove cap from top of regulator.
9. With a screwdriver rotate regulator adjustment screw clockwise to increase, or counterclockwise to decrease,
pressure until manometer shows correct reading.
10. Repeat steps 1 and 2.
11. Remove manometer fitting and replace plug in manifold.
12. Turn on main gas to range and light pilots.
13. Replace valve panels.
PAGE 24 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
ADJUSTMENT OF OPEN-TOP PILOTS
The open-top pilots are the non-aerated (yellow-tipped flame) type. One is located beside each open-top burne r.
Pilot outage is often caused by an unstable flame due to over-adjustment to the point where the flame is leaving its
port, or “blowing off.” Often, in an effort to improve ignition, the pilots are increased too much and result in this
unstable condition.
The pilots are adjusted by inserting the blade of a screwdriver into the slot on the small valve, located on the manifold.
The maximum flame size is approximately 19 mm with a slight yellow tip. The first indication of over-adjustment is
evident when the yellow tip begins to stream into black streaks and generate carbon. Continued over-adjustment
leads to the unstable lifting and blowing condition.
ADJUSTMENT OF OPEN-TOP BURNERS
All open-top burners are primarily adjusted by means of an air shutter on the mixer face.
To adjust a burner, loosen the screw that holds the air shutter in position and rotate the mixer cap until a clear, stable
blue flame is obtained. The flame should not be yellow tipped nor should it blow off the burner ports.
All orifice sizes and burner rate are properly set at the factory and should not be altered.
Over-rated burners cause poor burner and pilot performance, resulting in less heat, and wasted gas.
ADJUSTMENT OF OVEN STANDING PILOT
The standing oven pilot flame can be adjusted by turning the adjusting screw on the pilot line valve with a screwdriver.
The pilot line valve is located behind the kick panel below the oven door. Remove the kick panel to gain access. The
pilot flame is properly adjusted when it is just large enough to maintain a glowing red color of the flame switch
capillary bulb.
ADJUSTMENT OF OVEN BURNER
The oven burner orifice is of the fixed type, sized for the specified gas supply. The burner flame characteristics are
controlled by varying the primary air mixer cap. There should be a clear blue flame with a dist inct inner cone at each
port. Excessive primary air can result in “blowing” or the flames leaving the ports. Lack of primary air causes soft or
yellow tipped flame.
ADJUSTMENT OF OVEN BYPASS FLAME LEVEL
When the oven reaches the temperature at which the dial is set, the oven thermostat reduces the flow of gas to the
amount required to keep the oven at that temperature. However, the thermostat must always supply enough gas to
keep the entire burner lighted. To maintain this minimum flame, the bypass must be set carefully and accurately using
the following procedure (see illustration on page
1. Open the kick panel below the door of the oven by lifting it slightly and pulling the top edge away from the
oven. The oven burner should now be visible.
2. Turn the oven thermostat to its highest setting and check that the oven burner ignites.
3. After 5 minutes, turn the oven thermostat down to point between the two lines on the thermostat dial between
OFF and the lowest temperature setting (this is the bypass setting).
4. Check to see if the flame is about 1/4 inch (6 mm) high along the entire length of the burner. If it is, the bypass
flame level does not need adjustment. If it is not, continue with this procedure.
5. Remove the control knobs, thermostat dial and bezel, and the valve panel.
6. Using a screwdriver, turn the bypass adjustor on the stem of the thermostat (see illustration on page
counterclockwise to increase the flame or clockwise to decrease the flame until the flame is approximately 6
mm (1/4 inch) high along the entire length of the burner. (If no flame is present at all, place a flame at the
burner shutter to check for gas flow.) If the proper flame level cannot be established, replace the thermostat.
7. Replace the valve panel, control knobs, and thermostat bezel and dial. Turn all control knobs to the OFF
position.
27):
27)
OWNER’S MANUAL 1188716 (02/07) PAGE 25 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
CALIBRATION OF OVEN THERMOSTAT
The oven thermostat control is carefully calibrated at the factory so that its dial settings closely match actual oven
temperatures. Field recalibration is seldom necessary, and should not be resorted to unless con siderable experience
with unexpected cooking results definitely proves that the control is not maintaining the temperatures to which the dial
is set.
Do not recalibrate the oven thermostat until after the oven bypass flame has been adjusted (see previous procedure).
When checking the oven temperature, use a test instrument or a reliable mercury thermometer positioned in the
center of the oven. The oven bottom must be in place. For convection ovens, the blower baffle must be in place.
Proceed as follows:
1. Place the thermometer or the thermocouple of the test instrument on an oven rack in the center of the oven.
2. Remove the thermostat knob and push out its metal insert (see
3. Replace the thermostat knob and turn it to the 400°F (200°C) mark. Check that the oven burner comes on.
4. After oven burner has been on about 15 minutes, check the oven temperature. Open the oven door for as
short a time as possible. Use a flashlight, if necessary, to see the thermometer or test instrument clearly.
5. Continue to check the temperature at five-minute intervals until two successive readings are within 5°F (3°C)
of each other. If successive readings continue to vary too much, first check the bypass-flame level. If the
temperature still will not stabilize, replace the oven thermostat.
6. If the stable, measured oven temperature is in the range 390°F to 410°F (194°C to 226°C) it is not necessary
to change the thermostat calibration. If it is outside of the temperature range, continue with this procedure.
7. Look into the thermostat knob to see the calibration screw in the stem (see illustration on page
near the screw indicate which way to turn the screw to make the oven temperature higher or lower. If
necessary, scrape the paint seal off the screw. While holding the thermostat knob firmly to prevent the stem
from turning, insert a screwdriver through center of the knob, push the calibration screw inward, and turn the
screw in the appropriate direction that will increase or decrease the oven temperature to make the measured
temperature agree with the dial setting. Turn the screw only in small increments until the stable, measured
oven temperature is in the range 390°F to 410°F (194°C to 226°C).
8. Turn the thermostat knob to the 450°F (230°C) mark. Allow the oven to heat until two successive readings
made five minutes apart are within 5°F (3°C) of each other. If the stable, measured oven temperature is now in
the range 440°F to 460°F (224°C to 236°C) it is not necessary to further adjust change the thermostat
calibration. If the oven temperature cannot be set correctly, replace the thermostat.
9. Replace the knob insert that was removed in Step 2.
Figure 13 on page 27).
27). Arrows
PAGE 26 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
Figure 13
Thermostat Calibration and Bypass Flame Adjustment
Bypass Adjuster
Calibration Stem
Dial Insert
Dial
Bezel
CONVERSION FROM ONE TYPE OF GAS TO ANOTHER
Each range is shipped adjusted and equipped for a specific type of gas (either natural gas or propane). To convert a
range from one type of gas to another, do the following:
1. Refer to service procedures to access all burner orifices.
2. Refer to instructions included with conversion kit.
3. Follow all steps as indicated in the conversion kit.
4. Check for leaks and proper manifold pressure (the procedure is on page
5. Re-light all pilots and check for proper operation.
Note: A kit for conversion to a different type of gas may be purchased from Southbend.
24).
OWNER’S MANUAL 1188716 (02/07) PAGE 27 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
Figure 14
Wiring Diagram for 115 Volt Models
PAGE 28 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
Figure 15
Wiring Diagram for 208-230 Volt Models
OWNER’S MANUAL 1188716 (02/07) PAGE 29 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
PARTS
NOTICE
INSTALLATION OF OTHER THAN GENUINE SOUTHBEND PARTS WILL VOID THE WARRANTY ON THIS
EQUIPMENT.
The following parts diagrams list and show serviceable parts. For parts not listed, contact a Southbend Authorized
Parts Distributor or a Southbend Authorized Service Agency.
Parts Diagram Page
Leg and Caster Parts
External Panel and Drip Pan Parts 31
Flue Riser and Shelf Parts 32
Open-Top Burner Parts for X500 Models 33
Open-Top Burner Parts for S500 Models 34
Piezo Spark Module Parts 35
Convection Oven Parts 36
Standard Oven Parts 38
Electric Gas Shut-Off Parts (for S500 Units Built Before February 19, 2007) 40
Figure 16
Leg and Caster Parts
3
2
1
30
4
5
Key Part Number Qty Description
1 1146201 16
2 1146500 16
3 1172650 4
4 1178205 1
* 1174262 1
5 1174265 1
* Not shown on drawing.
PAGE 30 OF 44 OWNER’S MANUAL 1188716 (02/07)
1/4 X 20 X 3/4 HEX HEAD
1/4 LOCK WASHER
LEG PAD (3/4 X 10 HOLE)
LEG PACKAGE (SET OF 4 LEGS, NOT INCLUDING BOLTS, LEG PADS, OR LOCK WASHERS)
EARTHQUAKE LEGS SS (SET OF 4)
CASTER PACKAGE (TWO CASTERS WITH BRAKE AND TWO WITHOUT BRAKE; DOES NOT INCLUDE BOLTS, LOCK WASHERS, OR
LEG PADS)
500 SERIES RESTAURANT RANGES SERVICE
Figure 17
External Panel and Drip Pan Parts
1
2
3
Key Part Number Qty Description
1 1180744 1
2 1180743 1
3 1188243 *
** 1188605 *
1188604 *
* Quant ity used depends on model number.
** Not shown on drawing.
SIDE PANEL, LEFT
SIDE PANEL, RIGHT
KICK PANEL FOR FULL SIZE OVENS (A AND D SERIES)
DRIP PAN, 24", SS
DRIP PAN, 36", SS
3
OWNER’S MANUAL 1188716 (02/07) PAGE 31 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
Figure 18
Flue Riser and Shelf Parts
1
2
3
Key Part Number Qty Description
1 1188669 1
1188670 1
2 1181158 1
1184141 1
1181160 1
1184143 1
3 1181162 1
1180763 1
1181164 1
1180765 1
SHELF SINGLE ASM, 36" TRAY
SHELF SINGLE ASM, 60" TRAY
SPLASHER, 10" X 36"
SPLASHER, 24" X 36"
SPLASHER, 10" X 60"
SPLASHER, 24" X 60"
WALL SHIELD, 10" X 36"
WALL SHIELD, 22.5" X 36"
WALL SHIELD, 10" X 60"
WALL SHIELD, 22.5" X 60"
PAGE 32 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
Figure 19
Open-Top Burner Parts for X500 Models
5
3
12
10
11
13
7
8
6
Key Part Number
Quantity*
X536 X560
1 1184192 6 10
2 1178202 6 10
3 1008742 6 10
1009754 6 10
4 1177447 3 5
5 1177111 6 10
6 1177448 3 5
7 1184626 3 5
8 1184744 3 5
9 P6016 3 5
10 1182286 3 5
11 1148306 3 5
12 1182287 3 5
** 1166004 3 5
13 1148301 3 5
14 1180781 3 5
1187488 3 5
15 1180405 3 5
1187489 3 5
* Quant ity used depends on model number.
** Not shown.
9
4
3
2
1
Description
KNOB, CHROME METAL
GAS VALVE, HI-OFF
HOOD, ORIFICE #42 (NATURAL GAS)
HOOD, ORIFICE #54 (LP GAS)
PILOT ASSEMBLY, FRONT
BURNER ASSEMBLY
PILOT ASSEMBLY, REAR
PILOLT SUPPORT BRACKET
SPACER
FITTING, BRASS, STRT, 68C-6-4
TUBE, REAR BURNER
FITTING, ORIFICE BODY
BRACKET, REAR TUBE SUPPORT
DOUBLE PILOT ADJUSTMENT FITTING
NUT, BRASS JAM
FRONT GRATE
FRONT GRATE, WAVY
REAR GRATE
REAR GRATE, WAVY
5
15
14
OWNER’S MANUAL 1188716 (02/07) PAGE 33 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
Figure 20
Open-Top Burner Parts for S500 Models
13
14
12
15
9
8
7
6
11
4
5
3
17
2
1
10
16
Key Part Number
Quantity*
S536 S560
1 1184192 6 10
2 1182482 6 10
3 P6016 3 5
4 1182487 3 5
5 1148306 3 5
6 1182287 3 5
7 1148301 3 5
8 1008737 6 10
1008754 6 10
9 1177111 6 10
10 1182489 3 5
11 1182490 3 5
12 1182485 6 10
13 1182488 3 5
14 1182494 6 10
15 1182486 6 10
16 1187488 3 5
17 1187489 3 5
* Quant ity used depends on model number.
Description
KNOB, CHROME METAL
VALVE, CE OPEN TOP BURNER
FITTING, BRASS, STRT, 68C-6-4
TUBE, CE REAR BURNER
FITTING, ORIFICE BODY
BRACKET, REAR TUBE SUPPORT
NUT, BRASS JAM
HOOD, ORIFICE #37 (NATURAL GAS)
HOOD, ORIFICE #54 (LP GAS)
BURNER ASSEMBLY
TUBE, CE FRONT PILOT
TUBE, CE REAR PILOT
PILOT, CE
BRACKET, CE PILOT SUPPORT
SHIELD, CE PILOT
THERMOCOUPLE, CE
FRONT GRATE, WAVY
REAR GRATE, WAVY
PAGE 34 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
Figure 21
Piezo Spark Module Parts
7
8
3
5
Key Part Number
Quantity*
X536 X560
1 1182704 3 5
2 1182710 3 5
3 1182706 3 5
4 1186453 3 5
5 1186455 3 5
6 1182705 3 5
7 1186452 3 5
8 1186454 3 5
* Quant ity used depends on model number.
4
Description
SWITCH, PB, SPARK
WIRE, SWITCH
MODULE, SPARK
BRACKET, SPARK MODULE
HOLDER, BATTERY 9V PIEZO
BATTERY, 9V
BRACKET, PIEZO ELECTRODE
ELECTRODE, SPARK MODULE
6
2
1
OWNER’S MANUAL 1188716 (02/07) PAGE 35 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
Convection Oven Parts
See drawing on following page.
Key Part Number Qty* Description
1 1188243 1
2 1180861 2
3 1188714 1
4 1184226 1
** P1089 1
5 6660 8
6 1180528 2
7 1177581 1
8 1180821 1
9 1179710 4
10 1179688 1
1188523 1
11 1181117 1
12 1177567 1
13 1180859 1
14 1188707 1
15 1180841 2
16 1188712 1
17 1164278 1
1164279 1
18 1164037 1
19 1008736 1
1008752 1
20 1180873 1
21 1163868 1
22 1180830 1
23 1182498 1
24 1182497 1
25 B940000201 1
* Quant ity per oven.
** Not shown on drawing.
PANEL, KICK
DOOR HINGE
DOOR ASSEMBLY (FULL OVEN)
DOOR HANDLE (FULL OVEN)
SPRING, DOOR (FULL OVEN)
CLIP, RACK SUPPORT
RACK GUIDE
BLOWER WHEEL ASSEMBLY
POCKET WELD ASSEMBLY
SPACER, BLOWER
MOTOR, 1/3 HP, 208/240 VOLT
MOTOR, 1/3 HP, 115VOLT
BRACKET, DOOR SWITCH
SWITCH, DOOR
QUADRANT ASSEMBLY
OVEN BAFFLE CO
BRACKET, OVEN BAFFLE
OVEN BOTTOM (FULL OVEN)
SA BURNER (NATURAL GAS)
SA BURNER (LP GAS)
OVEN SAFETY VALVE
HOOD ORIFICE #36 (NATURAL GAS)
HOOD ORIFICE #52 (LP GAS)
PILOT TUBE
THERMOCOUPLE
BRACKET, OVEN SAFETY
KNOB, OVEN THERMOSTAT DIAL, FAHREINHEIT
BEZEL, OVEN THERMOSTAT KNOB
THERMOSTAT
PAGE 36 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
Figure 22
Convection Oven Parts
See parts list on previous page.
10
9
8
13
12
11
7
14
6
15
5
4
17
3
2
16
1
25
24
18
23
19
20
22
21
OWNER’S MANUAL 1188716 (02/07) PAGE 37 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
Standard Oven Parts
See drawing on following page.
Key Part Number Qty Description
1 1188243 1
2 1180861 2
* P1089 1
3 1188714 1
4 1180528 2
* 6660 8
5 1180859 1
6 1164278 1
1164279 1
7 1182498 1
8 1182497 1
9 B940000201 1
* 1182493 1
10 1164037 1
11 1008736 1
1008752 1
12 1180873 1
13 1163868 1
14 1180830 1
* Not shown on drawing.
DOOR ASSEMBLY (FULL OVEN)
DOOR HINGE
SPRING, DOOR (FULL OVEN)
OVEN BOTTOM (FULL OVEN)
RACK GUIDE
CLIP, RACK SUPPORT
QUADRANT ASSEMBLY
SA BURNER (NATURAL GAS)
SA BURNER (LP GAS)
KNOB, OVEN THERMOSTAT DIAL, FAHREINHEIT
BEZEL, OVEN THERMOSTAT KNOB
THERMOSTAT
SHIELD, CE THERMOSTAT
OVEN SAFETY VALVE
HOOD ORIFICE #36 (NATURAL GAS)
HOOD ORIFICE #52 (LP GAS)
PILOT TUBE
THERMOCOUPLE
BRACKET, OVEN SAFETY
PAGE 38 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES SERVICE
Figure 23
Standard Oven Parts
See parts list on previous page.
9
8
7
5
4
6
3
10
11
1
12
2
13
14
OWNER’S MANUAL 1188716 (02/07) PAGE 39 OF 44
SERVICE 500 SERIES RESTAURANT RANGES
Figure 24
Electric Gas Shut-Off Parts (for S500 Units Built Before February 19, 2007)
1
3
2
5
8
4
6
7
Key Part Number Qty Description
1 1181066 1
2 1186427 1
3 1179908 1
* 1181067 1
4 1181062 1
5 1181063 1
* 1180402 1
* 1172760 1
* 1179947 1
6 1181061 1
7 1146801 1
8 1178815 1
* Not shown on drawing.
SWITCH, OFF/ON/ON-MOMENTARY
VALVE PANEL, 460, SS SHUTOFF
BRACKET, FAN SWITCH
CAFE SHUTOFF HARNESS ASSEMBLY
BOX, 4" SQ. ELEC. JUNCTION
COVER, ELEC. JUNCTION BOX
RELAY, 120
CO POWER CORD
FLEX CABLE, 17"
VALVE, GAS SHUTOFF
NIPPLE, PIPE
REGULATOR, PRESSURE
PAGE 40 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES
Notes:
OWNER’S MANUAL 1188716 (02/07) PAGE 41 OF 44
500 SERIES RESTAURANT RANGES
Notes:
PAGE 42 OF 44 OWNER’S MANUAL 1188716 (02/07)
500 SERIES RESTAURANT RANGES
Notes:
OWNER’S MANUAL 1188716 (02/07) PAGE 43 OF 44
500 SERIES RESTAURANT RANGES
500 Series
RESTAURANT RANGES
A product with the Southbend name incorporates the best in durability and low maintenance. We all recognize,
however, that replacement parts and occasional professional service may be necessary to extend the useful life of
this appliance. When service is needed, contact a Southbend Authorized Service Agency, or your dealer. To avoid
confusion, always refer to the model number, serial number, and type of your appliance.
Southbend
1100 Old Honeycutt Road, Fuquay-Varina, NC 27526
www.southbendnc.com
PAGE 44 OF 44 OWNER’S MANUAL 1188716 (02/07)
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