Page 2 - MIDDLEBY MARSHALL INC.; NO QUIBBLE LIMITED WARRANTY
Middleby Marshall Inc. • 1400 Toastmaster Drive • Elgin, IL 60120 • (708) 741-3300 • FAX (708) 741-4406 National Service Cooperative 1-800-298-1862 Middleby Corporation Service Hotline 1-800-238-8444 Model No._________________Serial No.______________________________Installation Date_______________ M...
Page 3 - WARNING; maintenance can cause property damage, injury or; NOTICE; WARNING
This Manual Must Be Kept For Future Reference WARNING POST IN A PROMINENT LOCATION, THE EMERGENCY TELEPHONE NUMBER OF YOUR LOCAL GAS SUPPLIER AND INSTRUCTIONS TO BE FOLLOWED IN THE EVENT YOU SMELL GAS. Instructions to be followed in the event the user smells gas shall be obtained by consulting the l...
Page 4 - TABLE OF CONTENTS; Page
TABLE OF CONTENTS Page SECTION 1 - DESCRIPTION I. MODEL IDENTIFICATION ................................................................................................. 1OVEN SPECIFICATION CHART .......................................................................................... 2ELECTRICAL SP...
Page 5 - Continued
TABLE OF CONTENTS Continued SECTION 4 - MAINTENANCE I. MAINTENANCE - DAILY .................................................................................................. 35 A. Exterior ..................................................................................................................
Page 6 - NOTES
Page 7 - SECTION 1; I. MODEL IDENTIFICATION
1 SECTION 1 DESCRIPTION SECTION 1 DESCRIPTION Figure 1-1. Middleby™ Series PS200-R68 Ovens I. MODEL IDENTIFICATION The Middleby™ Series PS200-R68 Ovens may be usedsingly or stacked for use as double ovens. The Series PS200-R68 single oven is mounted on a basepad with 6" extension legs and caster...
Page 8 - PS200-R68 SERIES OVEN SPECIFICATIONS
2 SECTION 1 DESCRIPTION PS200-R68 SERIES OVEN SPECIFICATIONS PS200-R68 GAS PS200-R68 ELECTRIC PS224-R68 GAS PS224-R68 ELECTRIC PS220-R68 GAS PS220-R68 ELECTRIC Conveyor Belt Width 32"(813mm) 32"(813mm) 24"(610mm) 24"(610mm) 20"(508mm) 20"(508mm) Heating Zone Length 40-1/2"...
Page 9 - NOTE; ELECTRICAL SPECIFICATIONS; GAS HEATED OVENS
3 SECTION 1 DESCRIPTION NOTE Wiring Diagram is contained at the back of this Manual and is also located inside of the machinery compartment. . SERIES PS200-R68 ELECTRICAL SPECIFICATIONS GAS HEATED OVENS Main Blower Control Phase Frequency Amperage Poles Wires & Elements Circuit Draw Voltage Volt...
Page 10 - II. PRINCIPLE OF AIR FLOW; A. Heat Transfer and How It Works; Side View
4 SECTION 1DESCRIPTION II. PRINCIPLE OF AIR FLOW Air is heated and then pulled through the fan whichpushes the air into the oven plenum and delivers heatedair into the air fingers. The fingers contain an inner plateand outer plate which columnate the air and evenlydistribute heated air across the co...
Page 11 - II. PRINCIPLE OF AIR FLOW Continued; Which Forms High Velocity Columns Of Air To The Product.
5 SECTION 1 DESCRIPTION II. PRINCIPLE OF AIR FLOW Continued B. Air Fingers The Middleby Series PS200-R68 Oven is a conveyorizedhot air oven employing vertical air streams (Figure1-3) togive uniform and intensive heating. The columnatedvertical streams of hot air provide an exceptional heattransfer r...
Page 13 - III. COMPONENT FUNCTION
7 SECTION 1 DESCRIPTION Should a flame outage occur the control will close themain gas control valve within 0.8 seconds and attempt toreignite the pilot. D. Electric Heaters (Electric Oven Only) There are six heater elements mounted on the inside ofthe rear panel. Each element is connected to a sepa...
Page 14 - manifold with its holes lined up with outer plate holes.
8 SECTION 1DESCRIPTION G. Air Fingers The Air Finger Assemblies are made up of three parts asfollows (See Figure 1-7): 1. Outer Plate - The Outer Plate is the removable coverwith tapered holes, which directs the air stream onto theproduct to be baked. 2. Inner Plate -The Inner Plate is vital to form...
Page 15 - SECTION 2; CAUTION: It is required that the oven be placed under a ventila-; tion hood for adequate air supply and ventilation.; CAUTION: Do not obstruct the flow of combustion and ventila-; There Must Be Adequate Clearance Between; Carton size for all Series 200-R68 Ovens is:
9 SECTION 2 INSTALLATION SECTION 2 INSTALLATION NOTE: For U.S. installations the installation must conform with local codes or in absence of local codes, with ANSI Z223.1-latest edition and electrical code ANSI/NFPA No. 70-latest edition. NOTE: For Canadian Installations - The installation should be...
Page 16 - KITS AND EQUIPMENT; REQUIRED KITS AND EQUIPMENT
10 SECTION 2INSTALLATION PS200-R68 OVEN INSTALLATION REQUIRED KITS AND EQUIPMENT KITS AND EQUIPMENT PS200-R68 PS200-R68 PS200-R68 PS200-R68 Gas Oven Electric Oven Single Oven Double Oven Installation Installation Option Kit P/N Option Kit P/N Kit P/N Kit P/N 49025-0007 31361 31350 31514 PS200-R68 Si...
Page 17 - PARTS LIST FOR SERIES PS200-R68 GAS OVEN
11 SECTION 2 INSTALLATION PARTS LIST FOR SERIES PS200-R68 GAS OVEN INSTALLATION KIT PS200-R68, P/N 31350PS220-R68, P/N 31352PS224-R68, P/N 31351 (Two required for double oven) ITEM QTY PS200-R68 PS220-R68 PS224-R68 DESCRIPTION NO. PART NO. PART NO. PART NO. 1 1 22361-0005 22361-0005 22361-0005 FLEXI...
Page 20 - Installation; Wireway; II. CONTROL BOX AND CABLE INSTALLATION; CAUTION: When attaching cables turn the circuit breakers off.
14 SECTION 2INSTALLATION Figure 2-4. Control Box, Wireway and Cable Installation "UPPER" label "LOWER" label Wireway II. CONTROL BOX AND CABLE INSTALLATION CAUTION: When attaching cables turn the circuit breakers off. A. Install the control boxes, wireway and cables as shown in Figur...
Page 21 - Rear View
15 SECTION 2 INSTALLATION IV. RESTRAINT CABLE INSTALLATION Install the restraint cable assembly on the oven asshown in Figure 2-7. Figure 2-7. Restraint Cable Assembly Installation Figure 2-6. Double Oven Flue Installation Rear View Rear View III. FLUE VENT INSTALLATION A. Install the flue vent: (Ga...
Page 22 - UTILITY ROUGH-IN DIMENSIONS AND POSITIONING; ELECTRICAL SUPPLY; PROVIDED BY CUSTOMER; DO NOT USE CONDUIT; CAUTION; IT IS REQUIRED THAT THE OVEN BE; Typical Installation
16 SECTION 2INSTALLATION 24" 610mm 6 ON OFF 3” 76mm 6 ON OFF 24" 610mm 5 2 3 4 1 7 2 To Oven To Oven To Oven (Fle xible Hose) 6” 152mm GAS OVEN ROUGH-IN UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS200-R68 SERIES OVENS GAS SUPPLY & ELECTRICAL SUPPLY PROVIDED BY CUSTOMER DO NOT USE C...
Page 23 - ELECTRIC OVEN ROUGH-IN
17 SECTION 2 INSTALLATION 24" 610mm 6 ON OFF 6 ON OFF 24" 610mm To Oven To Oven ELECTRIC OVEN ROUGH-IN UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS200-R68 SERIES OVENS CAUTION IT IS REQUIRED THAT THE OVEN BE PLACED UNDER A VENTILATION HOOD FOR ADEQUATE AIR SUPPLY AND VENTILATION. Figur...
Page 24 - VENTILATION HOOD
18 SECTION 2INSTALLATION Figure 2-10 Vent Hood V. VENTILATION GUIDELINES A mechanically driven ventilation system is required forthe PS200-R68 Series Middleby Marshall conveyorizedgas ovens. The minimum hood canopy dimensions areoutlined below. Local codes and conditions vary greatly from one area t...
Page 25 - VI. ELECTRIC SUPPLY FOR GAS HEATED OVENS; When the oven is installed it must be electrically; OVEN MUST BE KEPT CLEAR; the specification data plate.; cation Data
19 SECTION 2 INSTALLATION VI. ELECTRIC SUPPLY FOR GAS HEATED OVENS Electric supply for all gas heated ovens is 208-240 voltsAC single phase. Each oven requires a separate 15 ampservice. Connection is made as shown in Figures 2-8 &2-12. A separate ground wire must also be supplied. CAUTION: Befor...
Page 26 - Junction Connection Box
20 SECTION 2INSTALLATION VIII. ELECTRIC SUPPLY FOR ELECTRICALLYHEATED OVENS Electrically heated ovens are available in 208 or 240volts, 5 wire, 3 phase only. They are pre-wired at thefactory and only one common connection is necessary. A standard oven is a 5 wire system (3 hot, 1 neut, 1 grd),it wil...
Page 27 - DO NOT CONNECT BLACK; IX. GAS SUPPLY FOR GAS HEATED OVENS
21 SECTION 2 INSTALLATION On ovens equipped with casters, the installation shall bemade with a gas connector that complies with the stan-dard for gas connectors for Moveable Gas Appliances,ANSI Z21.69-1987/CANI 6.10-88(or latest edition), andAddenda, Z21.69a-1989(or latest edition), and a quickdisco...
Page 28 - TROL VALVE REGULATOR DURING INITIAL TURN; DURING PRESSURE TESTING NOTE
22 SECTION 2INSTALLATION 1. The oven and its individual manual shutoff valve(located at the left rear of the oven) must be discon-nected from the gas supply piping system during anypressure testing of that system at test pressure inexcess of 1/2 psig (3.45 kPA). Turn OFF main gasshutoff valve or mai...
Page 29 - Installing Backstop and End Stop
23 SECTION 2 INSTALLATION It is possible to convert ovens from natural gas to propaneand back. Call your local authorized factory service agentto perform the conversion. NOTE: In Canada to conform with CAN/CGA-B149.2Propane Installation Code the oven must be orderedPropane, it may not be converted i...
Page 31 - SECTION 3; I. CONTROLS AND COMPONENTS
25 SECTION 3 OPERATION SECTION 3 OPERATION I. CONTROLS AND COMPONENTS Figure 3-1. PS200-R68 Series Control Functions Temperature Controller Lower Oven Control Box Conveyor Speed Control Upper Oven Control Box Conveyor Switch Heat Switch Blower Switch
Page 33 - Figure 3-3. Conveyor Speed Digital Control; The conveyor; Figure 3-5. Product at exit end of bake chamber-END OF TIMING; MEASURING CONVEYOR SPEED.
27 SECTION 3 OPERATION Figure 3-3. Conveyor Speed Digital Control F. Conveyor The conveyor switch is on the control box. Also on the con-trol box is the digital control for theconveyor speed. The digital con-trol can be adjusted from 2 min-utes 40 seconds to 29 minutes 50 seconds bake time (conveyor...
Page 35 - MIN; S E T P T
29 SECTION 3 OPERATION Figure 3-6. Control Panel MIN SEC I O FUNCTION DISPLAY RESET SETUP MIN SEC I O I O 0 0 0 0 MIN SEC ˚C Middleby Marshall ALM HEAT 351 S E T P T 1 FUNCTION DISPLAY RESET SET UP F Conveyor Speed Control Temperature Controller Lower Left Blank Lower Right Blank Blower Switch Heat ...
Page 36 - B. Temperature Controller Operation Instructions; set point will begin increasing in 10 degree increments.; TEMP
30 SECTION 3OPERATION B. Temperature Controller Operation Instructions 1. UNLOCKING SET POINT. The temperature controller set point must be 450°F (232.2°C) for the upper oven and350°F (176.7°C) for the lower oven. To raise or lower the set point on a Red Lobster oven the set point must firstbe unloc...
Page 37 - Display Messages
31 SECTION 3 OPERATION Figure 3-9 Figure 3-10 Figure 3-11 3. Display Messages a. ALM - The ALM window will display either a “1” or “2” or will beblank. AA. Refer to Figure 3-9. The “1” signals that the oven tempera-ture is above 650°F (343°C) and therefore the high limit featurehas been activated. T...
Page 38 - FAIL SF; Clean the cooling fan grills and louvers daily.; Power Failure
32 SECTION 3OPERATION Figure 3-12 c. FAILSF (Failsafe) AA. Refer to Figure 3-12. If the oven does not reach 200°F (93°C)in 15 minutes the temperature controller will shut off the high flamevalve and begin flashing “FAILSF” and “SET PT” alternately. Youwill also note that the “2” in the ALM window st...
Page 39 - switch and blower; CAUTION: Blower fan and conveyor will remain on.; switch is used only for emergency shut down of conveyor.; E. Conveyor Speed: Bake Time and Time of Delivery
33 SECTION 3 OPERATION Figure 3-13. Bake time Figure 3-14. Time of Delivery Time of Delivery Bake Time D. Shut Down (Gas or Electric Ovens) 1. Turn "OFF" heat switch and blower switch. CAUTION: Blower fan and conveyor will remain on. 2. Open front window. 3. Do not turn off conveyor switch. ...
Page 41 - SECTION 4; Possibility of injury from rotating parts and electrical shock; following procedure is to be implemented.
35 SECTION 4 MAINTENANCE SECTION 4 MAINTENANCE Figure 4-1. Oven Cooling Fan CAUTION Possibility of injury from rotating parts and electrical shock exist in this oven. Turn off and lockout or tagout electrical supply to oven(s) before attempting to disassemble, clean or service oven(s). Never disasse...
Page 42 - Turn off and lockout or tagout electrical supply to oven(s) before
36 SECTION 4MAINTENANCE Middleby Marshall MiddlebyMarshall C. Crumb Pans Remove the crumb pan(s) at bothends of the oven. Crumb pans areremoved by sliding out as shown inFigure 4-2. Wash the crumb pans inthe pot sink. CAUTION Possibility of injury from rotating parts and electrical shock exist in th...
Page 47 - E. Cleaning parts that were soaked overnight.
41 SECTION 4 MAINTENANCE E. Cleaning parts that were soaked overnight. Cleaning takes 2 people. One to clean the oven and one to clean the parts. You will need:• Boots• Rubber Gloves• Steel brush• Kote Spray• Squirt bottle filled with water• Towels• Grill pads• Black pad• Putty knife NOTE: Before cl...
Page 49 - c. Place fingers in an upright position to remove the outer plate.
43 SECTION 4 MAINTENANCE c. Place fingers in an upright position to remove the outer plate. Gently step on the lip of the finger and pull the outer plate off. Figure 4-18. d. To remove the inner plate, pull plate out and then up. e. Scrub the parts using the black pad if necessary and then run the p...
Page 54 - d. Reassemble conveyor drive chain cover.
48 SECTION 4MAINTENANCE b. Attach drive chain by lifting conveyor andattaching drive chain to conveyor drivesprocket. Figure 4-26. Figure 4-27. c. The angle plate located on the underside of theconveyor must be against the lower end plug. This is trueon both ends of oven. Figure 4-28. d. Reassemble ...
Page 55 - f. Reinstall conveyor end stop
49 SECTION 4 MAINTENANCE Middleby Marshall MiddlebyMarshall e. Checking conveyor belt tension. NOTE: Oven conveyor belt must be cool when adjusting belt.Do not adjust belt if HOT. AA. With the conveyor assembly in the oven, stand at one endof conveyor and check tension by lifting the conveyor belt a...
Page 56 - A. Cleaning fan motor; Thoroughly blow out; B. Electrical terminals
50 SECTION 4MAINTENANCE III. MAINTENANCE - EVERY 3 MONTHS NOTE: It is recommended that the 3 Month Maintenance schedule be performed by an Authorized Middleby MarshallService Agent. CAUTION: All electrical power should be shut OFF and locked out or tagged out before attempting maintenance in steps &...
Page 57 - C. Checking and/or replacing main blower fan belt
51 SECTION 4 MAINTENANCE C. Checking and/or replacing main blower fan belt 1. Check the main blower fan belt for proper tension andwear. To gain access you must remove the two (2)screws on the bottom lip of rear shroud along with thetwo (2) screws on the cooling fan guard plate. Figure 4-32. Figure ...
Page 58 - D. Main Blower Fan Shaft Bearing Lubrication
52 SECTION 4MAINTENANCE Figure 4-34. 3. If belt is loose or to replace belt loosen the tensionlocking bolts on the motor mounting bracket. Next pullback on the motor, do not over tighten or fan bearingsmay be damaged. Retighten locking bolts. Figure 4-35. D. Main Blower Fan Shaft Bearing Lubrication...
Page 59 - All electrical power should be shut OFF; MAINTENANCE PARTS; Fan Belt (Refer to previous
53 SECTION 4 MAINTENANCE IV. MAINTENANCE - EVERY 6 MONTHS NOTE: It is recommended that the 6 Month Maintenance schedule be performed by an Authorized Middleby MarshallService Agent. CAUTION: All electrical power should be shut OFF and locked out or tagged out before attempting maintenance in steps &...
Page 61 - SECTION 5; PROBLEM
55 SECTION 5 TROUBLESHOOTING SECTION 5 TROUBLESHOOTING PROBLEM PRODUCTS OVERCOOKED OR UNDERCOOKED Check for correct setting of conveyor speed control. Set conveyor speed control at correct setting. Check set tempera- ture on temperature controller. Refer to Operation Section for proce- dure to set t...
Page 63 - If cables need to be attached
57 SECTION 5 TROUBLESHOOTING PROBLEM OVEN WILL NOT TURN ON WHEN THE SWITCHES ARE TURNED ON Check if circuit breakers are turned on. Check if cables at remote control and at top of machinery compartment are attached. CAUTION: If cables need to be attached turn the circuit breakers off before attachin...
Page 65 - SECTION 6; FIGURE NO. DESCRIPTION PAGE NO.
59 SECTION 6 PARTS LIST 6-16-26-36-46-56-66-76-86-9 Oven Panels, Window and Legs Exploded DrawingAir Finger Exploded DrawingControl Panel Exploded DrawingBlower and Shroud Exploded DrawingConveyor Exploded DrawingGas Burner and Piping Assembly Exploded DrawingMachinery Compartment Exploded DrawingEl...
Page 66 - OVEN PANELS, WINDOW AND LEGS
60 SECTION 6 PARTS LIST FIGURE 6-1 OVEN PANELS, WINDOW AND LEGS 17 16 4 5 7 5 4 6 2 8 1 3 18 20 22 21 25 23 24 25 19 30 31 32 30 31 32 29 26 28 29 27 11 11 12 13 14 5 4 7 8 9 2 3 1 6 33 35 34 10 10 36 39 37 38
Page 68 - AIR FINGERS
62 SECTION 6 PARTS LIST FIGURE 6-2 AIR FINGERS 9 4 3 2 1 6 7 8 5
Page 70 - CONTROL PANEL
64 SECTION 6 PARTS LIST FIGURE 6-3 CONTROL PANEL MIN SEC I O FUNCTION DISPLAY RESET SETUP MIN SEC I O I O 0 0 0 0 20 16 17 18 19 10 11,13 12,13 11,13 1 15 9 4 6 7 5 2,3 8 14
Page 72 - BLOWER AND SHROUD
66 SECTION 6 PARTS LIST FIGURE 6-4 BLOWER AND SHROUD 25 10 5 6 21 22 23 22 24 26 20 12 12 20 6 5 4 6 7 1 2 5 2 8 12 11 13 17 17 12 14 19 15 12 18 16 12 4 6 5 3
Page 74 - CONVEYOR; Right Hand Drive Oven Shown. All components
68 SECTION 6 PARTS LIST 39 24 25 26 28,29 30 33 34 35 31 1,2 4 5 20 15 23 12 27 16 17 12 23 15 22 9 11 17 16 14 15 12 18 38 15 14 12 37 10 8 13 13 6 19 21 7 3 7 31 36 40 41 FIGURE 6-5 CONVEYOR Right Hand Drive Oven Shown. All components are reversed for Left Hand Drive Oven
Page 76 - GAS BURNER AND PIPING ASSEMBLY
70 SECTION 6 PARTS LIST FIGURE 6-6 GAS BURNER AND PIPING ASSEMBLY 27 24 28 22 23 25 26 21 19 12 20 11 31 7 3 3 4 6 5 3 2 17 1 29 16 15 13 2 14 10 15 10 11 12 9 3 7 8 4,30 18 Adjustment Screw Cap ScrewSilver - Nat.Black - Propane Regulator SpringSilver - Nat.Red - Propane Gas Conversion Kit
Page 78 - MACHINERY COMPARTMENT
72 SECTION 6 PARTS LIST FIGURE 6-7 MACHINERY COMPARTMENT 1 2 3 5 6 7 8 14 15 16 11 14 15 14 15 16 12 13 18 19 18 17 21 20 8 9 10 22 23,24
Page 80 - ELECTRIC OVEN ELECTRIC PANEL
74 SECTION 6 PARTS LIST FIGURE 6-8 ELECTRIC OVEN ELECTRIC PANEL j 3 5 1 11 7 6 4 2 9 10 8 12
Page 82 - JUNCTION BOX AND EXPORT TRANSFORMER
76 SECTION 6 PARTS LIST FIGURE 6-9 JUNCTION BOX AND EXPORT TRANSFORMER N 17 1 2 N N 17 17 1 1 2 2 17 N 1 2 5,6 7 4 2 2 3 TerminalBlock Transformer Ground
Page 85 - SECTION 7
79 SECTION 7 ELECTRICAL SCHEMATICS SECTION 7 ELECTRICAL SCHEMATICS
