Middleby Marshall PS200-R68 - Manuals

TABLE OF CONTENTS Continued SECTION 4 - MAINTENANCE I. MAINTENANCE - DAILY .................................................................................................. 35 A. Exterior ..................................................................................................................

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...

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"...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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

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...

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 ...

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...

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...

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...

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. ...

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...

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...

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...

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...

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 ...

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...

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 &...

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 ...

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...

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 &...

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...

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...

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...

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

62 SECTION 6 PARTS LIST FIGURE 6-2 AIR FINGERS 9 4 3 2 1 6 7 8 5

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

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

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

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

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

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

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

79 SECTION 7 ELECTRICAL SCHEMATICS SECTION 7 ELECTRICAL SCHEMATICS