IMPORTANT FOR FUTURE REFERENCE Please complete this information and retain this manual for the life of the equipment: Model #: __________________________ Serial #: __________________________ Date Purchased: ___________________ OPERATOR'S MANUAL Combination (Combi) Oven Model CG90-1 ! WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.
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 This symbol warns of immediate hazards that will result in severe injury or death.
TABLE OF CONTENTS COMBINATION OVEN 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.
SPECIFICATIONS SPECIFICATIONS COMBINATION OVEN S PECIFICATIONS DIMENSIONS A B E D F G H C I Internal Dimensions: 20.75" Wide, 31.75" Deep, 22" High Model Cabinet Width (A) Overall Width (B) CG90-1 38" 39.6" Model CG90-1 Water Connection 3/8" NPT (Female) From Right (F) Above Floor (I) 12.6" 33.9" Leg Height (C) 25.9" JK Overall Height (D) 59.1" Gas Supply Connection 3/4" NPT (Male) From Right (G) Above Floor (J) 17.5" 29.5" Overall Depth (E) 40.
SPECIFICATIONS COMBINATION OVEN Maximum 8.0 amps (use 15 amp circuit breaker). Three voltage options: 120 VAC, 60 Hz, 1 phase: Six-foot cord with three-prong plug (standard option). 208 VAC, 60 Hz, 1 or 3 phase: Wire junction box to terminal block located near rear of motor compartment. 240 VAC, 60 Hz, 1 or 3 phase: Wire junction box to terminal block located near rear of motor compartment. All units are shipped single-phase. Single-phase units can be easily operated on three-phase systems.
INSTALLATION COMBINATION OVEN INSTALLATION I NSTALLATION ! CAUTION Do not locate unit adjacent to any high heat or grease producing piece of equipment, such as a range top, griddle, fryer, etc., that could allow radiant heat to raise the exterior temperature of the combination oven above 130°F (54°C). DO NOT MOUNT ABOVE OTHER COOKING EQUIPMENT. NOTICE These installation procedures must be followed by qualified personnel or warranty will be void.
INSTALLATION COMBINATION OVEN Step 2: Install the Legs A set of legs is packed in the unit. The legs can be adjusted to overcome a slightly uneven floor. When legs with casters have been ordered, the casters are provided with a Zerk fitting for proper lubrication when required. 1. Raise oven sufficiently to allow legs to be bolted to the bottom corners.
INSTALLATION COMBINATION OVEN Step 3: Check Clearances and Ventilation INSTALLATION ! WARNING There must be adequate clearance between oven(s) and construction. Clearance must also be provided for servicing and for operation.
INSTALLATION COMBINATION OVEN Utility Connections INSTALLATION OPERATOR’S ANUAL 1180963 PAGE 9
INSTALLATION COMBINATION OVEN Step 4: Electrical Connections INSTALLATION A wiring diagram is located inside the control compartment on the right side of the pull-out control-panel assembly. To access the control-panel compartment, remove the screw at the top of the control panel and pull the control panel out. Units ordered with a 115VAC, 60Hz, single-phase electrical rating are factory-supplied with three-wire cord and three-prong plug, which fits any standard three-prong grounded receptacle.
INSTALLATION COMBINATION OVEN Step 6: Water Drain Water Drain Open Funnel OPERATOR’S ANUAL 1180963 PAGE 11 INSTALLATION The drain line from the oven is a 2" O.D. tube (see figure on page 9). Position the oven near, but not on top of, an open floor drain. DO NOT directly plumb to the oven unless you also install an “open funnel” downstream of this connection in the drain system. Make the drain line from the unit to the air gap above the "open funnel" as short as possible.
INSTALLATION COMBINATION OVEN Step 7: Gas Connection INSTALLATION If this equipment is being installed at over 2,000 feet 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 behind the lower front panel on the left side.
INSTALLATION COMBINATION OVEN Step 8: Installation and Performance Check The following items should be checked by a qualified service technician: 1. Verify that oven is level. 2. Verify proper electrical characteristics (voltage, cycle, phase). INSTALLATION 3. Check ventilation. 4. Check electrical connections (external and internal). 5. Check door(s) for proper alignment, tension, seal, and adjustment. 6. Check timers, switches and motor for proper installation and operation. 7.
OPERATION COMBINATION OVEN O PERATION NOTICE No attempt should be made to operate oven during a power failure. A manual gas shutoff valve is located behind front lower panel for turning gas on and off. OPERATION OPERATION (FOR STANDARD CONTROL OPTION) Lighting the Combi – The Combi has an intermittent standing pilot. When the unit is turned on, the lighting sequence is controlled by an ignition module.
OPERATION COMBINATION OVEN Setting Cooking Temperature – The cooking temperature can be set in oven mode and Combi mode but not in steam mode. In steam mode, the setpoint temperature is preset to 215ºF, to allow pure, slightly superheated steam to circulate within the cavity. The temperature range in oven mode and Combi ode is 145ºF to 500ºF. Setting Cooking Time – The cooking time can be set by turning the time knob to the desired setting and pressing the START/INTERRUPT button.
OPERATION COMBINATION OVEN OPERATION Operation of Combination Oven with Standard Controls PAGE 16 OPERATOR’S MANUAL 1180963
COOKING HINTS COMBINATION OVEN C OOKING H INTS All times and temperatures are estimates and should be verified in actual practice. Starting temperature of food, pan size/fullness, and opening oven during cooking will affect cooking times. Baked Goods Menu Item Temperature Apple pie, mile-high Oven 350°F/175°C 50 min. Pie tins on wire racks Biscuits Oven 325°F/165°C 15 min. Sheet pan Can also use Combi mode at 350°F/175°C Biscuits, cinnamon raisin Oven 325°F/165°C 15 min.
COOKING HINTS COMBINATION OVEN Beef and Veal COOKING HINTS Menu Item Mode Temperature BBQ beef (raw brisket) Combi 250°F/120°C 375°F/190°C 90 min. + 10 min at higher temp. Cook with sauce at low heat, raise temp. to set glaze Beef Sausage links Steam 350°F/175°C 10 min. May also be steamed Braised beef w/mushrooms Combi 250°F/120°C 1 hour 2 ½” pan, uncovered Corned beef hash Combi 250°F/120°C 25 min. 2 ½” solid pan Fillet steak Combi 500°F/260°C 10 min.
COOKING HINTS COMBINATION OVEN Fish and Shellfish Menu Item Mode Temperature Cooking Time Proper Pan Tips Crab Steam N/A 8-10 min. 2 ½” perforated pan Halibut Combi 325°F/165°C 6-7 min. ½ size sheet pan Perch Oven 400°F/205°C 5 min. Sheet pan Salmon (fresh) Combi 325°F/165°C 8-10 min. 2 ½” perforated Shrimps – frozen Steam N/A 3-5 min. 2 ½” perforated pan 20-25 ct. Trout Oven 400°F/205°C 5 min.
COOKING HINTS COMBINATION OVEN Potatoes, Pasta, and Grains Menu Item Mode Temperature Cooking Time Proper Pan Tips Baked potatoes Oven 375°F/190°C 40 min. Sheet pan New, red potatoes Steam N/A 17 min. 2 ½” perforated Cut in quarters Rice (short grain) Steam N/A 20 min. 2 ½” pan, covered 2 parts rice, 1 part stock Poultry COOKING HINTS Menu Item Mode Temperature Cooking Time Proper Pan Chicken wings Combi 375°F/190°C 15 min.
COOKING HINTS COMBINATION OVEN Vegetables, continued Menu Item Mode Temperature Green beans w/water chestnuts Steam N/A 10 min. 2 ½” perforated Green beans, French cut (frozen) Steam N/A 10 min. 2 ½” perforated Green beans, whole Steam N/A 10 min. 2 ½” perforated Italian vegetables (frozen) Steam N/A 13 min. 2 ½” perforated Mixed vegetables (frozen) Steam N/A 10 min. 2 ½” perforated pan Mushrooms Steam N/A 8 min.
CLEANING COMBINATION OVEN C LEANING Southbend equipment is constructed with the best quality materials and is designed to provide durable service when properly maintained. To expect the best performance, your equipment must be maintained in good condition and cleaned daily. Naturally, the frequency and extent of cleaning depends on the amount and degree of usage. Following daily and more extensive periodic maintenance procedures will increase the life of your equipment. Climatic conditions (i.e.
CLEANING COMBINATION OVEN PERIODIC CLEANING • If lime or mineral deposit starts to build up in the interior, clean the unit by using Southbend “descaler” or other non-caustic deliming solution. Follow manufacturer’s recommended procedures. Thoroughly rinse out unit with clean water. • To remove normal dirt, grease, or product residue from stainless steel, use ordinary soap and water applied with a sponge or cloth. Dry thoroughly with a clean cloth. Never use vinegar or any corrosive cleaner.
TROUBLESHOOTING COMBINATION OVEN T ROUBLESHOOTING NOTICE Service work should be performed only by a qualified technician who is experienced in, and knowledgeable of, the operation of commercial gas cooking equipment. Contact the authorized Southbend Service Agency for reliable service, dependable advice or other assistance, and for genuine factory parts.
TROUBLESHOOTING COMBINATION OVEN TROUBLESHOOTING KEY Find the symptom below that corresponds to the malfunction, then turn to the corresponding figure and page. Follow the flowchart on that page until the problem is solved.
TROUBLESHOOTING COMBINATION OVEN Unit Not Working, No Lights Unit Not Working, No Lights. Check circuit breaker Ensure 120V between terminals TBA1 and TBA2 of terminal block A. Check voltage between where Wire 57 attaches to fuseblock and TB-B2. No Test and replace fuse, as necessary. Is voltage approximately 120 volts? Yes With switch in "ON" position, check voltage between TB-B1 and TB-B2. No Test and replace power switch, as necessary.
TROUBLESHOOTING COMBINATION OVEN Unit Not Heating Properly (No Gas Error) Unit Not Heating Properly (No Gas Error) Disconnect power. Remove control panel thumbscrew and slide control panel out, Reconnect power. Start unit. Check gas supply pressure. (There is an inlet pressure tap on the gas combination valve that can be used for this purpose.) Supply pressure should be > 7" W.C. for natural gas and > 11" W.C. for propane. Remove front lower panel and burner box cover.
TROUBLESHOOTING COMBINATION OVEN Gas Error Gas Error Ensure that gas shut-off valve is open. Check gas supply pressure. (There is an inlet pressure tap on the gas combination valve that can be used for this purpose.) Supply pressure should be > 7" W.C. for natural gas or > 11" W.C. for propane. Remove front lower panel and burner box cover. Turn unit on. Observe ignitors for first 101 seconds after turning unit on. Ignitors should begin glowing and continue to glow for approximately 37 seconds.
TROUBLESHOOTING COMBINATION OVEN Unit Not Steaming Properly in Steam Mode or Combi Mode Unit Not Steaming Properly in Steam Mode or Combi Mode. Check water pressure at unit with unit running. Disconnect plug PL3 and place test leads in harness side of plug. Operate unit in steam mode. Wait until steam mode LED stops flashing. Check voltage. Does voltage rise and fall from 0 to approximately 24 volts? No Check wiring. Replace board. Yes Turn unit off.
TROUBLESHOOTING COMBINATION OVEN Blower Not Running Properly Blower Not Running Properly (with Door Closed) Does blower run when unit is cold (door closed)? No Disconnect 4-pin connector. Place fan switch in "HIGH FAN" position. Locate the terminals where Wires 21 and 55 are attached and check for continuity between these terminals. Place the fan switch in "LOW FAN" position. Locate the terminals where Wires 22 and 56 are attached. Check for continuity.
TROUBLESHOOTING COMBINATION OVEN Figure 4 Electric Schematic for 120 Volt 60 Hz Models TROUBLESHOOTING OPERATOR’S MANUAL 1180963 PAGE 31
PARTS COMBINATION OVEN P ARTS NOTICE INSTALLATION OF OTHER THAN GENUINE SOUTHBEND PARTS WILL VOID THE WARRANTY ON THIS EQUIPMENT. The serial plate with voltage, model, and serial information is located behind the lower front panel on the left side. Replacement parts may be ordered either through a Southbend Authorized Parts Distributor or a Southbend Authorized Service Agency.
PARTS COMBINATION OVEN Blower and Motor Parts Key 1 2 3 4 5 6 7 8 9 Part Number 1180934 1180932 1180910 1180909 1180903 1180686 1180633 1180621 1179710 Qty 1 1 1 1 1 1 1 1 4 0-11-0045 Description Blower Wheel Weld Assembly Packing Material, FDA Approved Washer, Flat Washer, Wave Spring, SS Fitting, Motor Shaft Seal Motor Pocket S/W/A Fan, Water Dispersing Motor, 115V 60CC 2 Speed Spacer, Blower, Motor PARTS OPERATOR’S MANUAL 1180963 PAGE 33
PARTS COMBINATION OVEN Control Panel Subassembly Parts 0-11-0046 See drawing on following page.
PARTS COMBINATION OVEN Control Panel Subassembly Parts See parts list on previous page.
PARTS COMBINATION OVEN Frame and Exterior Parts 0-11-0047 See drawing on following page.
PARTS COMBINATION OVEN PARTS OPERATOR’S MANUAL 1180963 PAGE 37
PARTS COMBINATION OVEN Cavity Parts 0-11-0048 See drawing on following page. Part Number P6016 1180998 1180997 1180996 1180992 1180983 1180982 1180962 1180961 1180921 1180911 1180682 1180671 1180670 1180656 1180639 1180616 1172753 Qty 1 2 1 1 1 1 1 1 1 8 2 2 1 1 1 5 1 2 Description Fitting, Brass, STRT, 68C-6-4 Baffle, Weld Assembly Disk, Pressure Relief Spring, Relief Valve Insul.
PARTS COMBINATION OVEN Cavity Parts See parts list on previous page.
PARTS COMBINATION OVEN Door Subassembly Parts Part Number 1180977 1180940 1180938 1180691 1180685 1180627 1180618 1180614 1146363 1146303 Qty 2 1 1 1 1 1 1 1 3 8 Description Hinge, Door Panel, Door, Weld Assembly Door Latch & Striker Insulation, Door Panel Assembly, Inner Door Gasket, Door Door Subassembly (assembled) Door Gasket Retainer Screw, 1/4 -20x2, SS, Slotted Flat Head Screw, #8 x 1/2 PARTS Key 1 2 3 4 5 6 7 8 9 10 0-11-0049 PAGE 40 OPERATOR’S MANUAL 1180963
PARTS COMBINATION OVEN Sprayer and Water Train Parts 0-11-0050 PARTS OPERATOR’S MANUAL 1180963 PAGE 41
PARTS COMBINATION OVEN Burner and Gas Train Parts 0-11-0051 See drawing on following page.
PARTS COMBINATION OVEN PARTS OPERATOR’S MANUAL 1180963 PAGE 43
PARTS PARTS COMBINATION OVEN PAGE 44 OPERATOR’S MANUAL 1180963
PARTS COMBINATION OVEN Black Legs with Casters Parts Key Part Number Qty 1 1174265 1 2 1177850 1 * 1146213 20 * 1146505 20 * 1146513 20 * 1176351 1 * not shown on drawing. 0-40-0498 Description Caster Package, 4 Bolt Leg Assembly, Caster Bolt, 3/8-16x1 Hex Head Washer 5/16, Flat Washer 3/8, Lock Sticker.
COMBINATION OVEN COMBINATION OVEN 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 unit. 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 unit.
