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Table of contents for the manual
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Page 1
O WNER'S OPERA TING AND INST ALLA TION MANU AL f or domestic and standard e xpor t o vens ©2007 Middleby Marshall Inc. is a registered trademark of Middleby Marshall, Inc. All rights reserved. Middleby Cooking Systems Group • 1400 Toastmaster Drive • Elgin, IL 60120 • (847)741-3300 • FAX (847)741-4406 PS840 Series Electric Ovens P/N 6[...]
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ii W ARNING FOR Y OUR SAFETY , DO NO T ST ORE OR USE GASOLINE OR O THER FLAMMABLE V APORS AND LIQU IDS IN THE VICINITY OF THIS OR ANY O THER APPLIANCE. W ARNING Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury , or death. Read the installation, operation, and maintenance instructions thoroughl[...]
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iii MIDDLEBY MARSHALL INC. O VEN LIMITED W ARRANTY (Non U . S.A.) The Seller warrants equipment manufactured by it to be free from defects in material and workmanship for which it is responsible. The Seller’s obligation under this warranty shall be limited to replacing or repairing, at Seller’s option, without charge, F.O.B. Seller’s factory,[...]
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iv NO TE Wiring Diagrams are in Section 6 of this Manual. The diagram for each oven is also on the lower inner surface of its Control Console. Page SECTION 1 – DESCRIPTION ............................................ 1 I. OVEN USES ............................................................ 1 II. OVEN COMPONENTS .................................[...]
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I. O VEN USES PS840 Series Ovens can be used to bake and/or cook a wide variety of food products, such as pizza, pizza –type products, cookies, sandwiches and others. II. O VEN COMPONENTS – see Figure 1-1. A. Conveyor Drive Motor: Moves the conveyor. B. Crumb Pans: Catch crumbs and other materials that drop through the conveyor belt. One crumb [...]
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I. O VEN SPECIFICA TIONS Table 1-1 Dimensions Single Oven Double Oven Triple Oven Overall Height 48-3/16 ″ (1219mm) 62-3/4 ″ (1575mm) 78-11/16 ″ (1981mm) Overall Depth 60 ″ (1524mm) 60 ″ (1524mm) 60 ″ (1524mm) Overall Length 76-1/2 ″ (1930mm) 76-1/2 ″ (1930mm) 76-1/2 ″ (1930mm) 32 ″ ″ ″ ″ ″ Conveyor Model 33-1/2 ″ (838[...]
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WARNING - Keep the appliance area free and clear of combustibles. WARNING – The oven must be installed on an even (level) non-flammable flooring and any adjacent walls must be non-flammable. Recommended minimum clearances are specified in the Description section of this manual. WARNING – Do not obstruct the flow of ventilation air to and from y[...]
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PARTS LIST FOR SERIES PS840 ELECTRIC OVEN INSTALLATION KIT P/N 49810-0009 (Two required for double oven) (Three required for triple oven) ITEM NO. QTY PART NO. DESCRIPTION 1 1 55028 CONVEYOR END STOP 2 1 31461 CONVEYOR LEFT REAR STOP 3 1 42612 SERVICE AGENCY DIRECTORY 4 1 22500-0080 LABEL, MM 5 1 51054 ASSY, HANDLE & DOOR Figure 2-1A. PS840-Ser[...]
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PS840 32 ″ ″ ″ ″ ″ O VEN INST ALLA TION REQUIRED KITS AND EQUIPMENT PS840 PS840 PS840 PS840 Electric Oven Single Oven DoubleOven TripleOven Installation Option Base w/ OptionBase w/ OptionBase w/ TYPE OF INSTALLATION Kit 1 5 ″ Legs, 6 ″ Legs, Casters& Top Casters & Top Casters & Top Kit Kit Kit P/N49810-0009 P/N59720 P/N59[...]
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Figure 2-2A. Model PS840 24 ″ ″ ″ ″ ″ Single Oven Option Base with Legs and Top PARTS LIST FOR PS840 SERIES 24 ″ ″ ″ ″ ″ SINGLE OVEN OPTION - BASE w/15 ″ ″ ″ ″ ″ LEGS & TOP P/N 61123 HARD WA RE BA G 5, 6, 7, 10 & 11 1 2 3 4 9 8 12 ITEM NO. QTY PART NO. DESCRIPTION 1 1 61126 COMPLETE BASE WELDMENT 2 4 37900-0024[...]
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Figure 2-2B. Model PS840 32 ″ ″ ″ ″ ″ Single Oven Option Base with Legs and Top PARTS LIST FOR PS840 32 ″ ″ ″ ″ ″ SERIES SINGLE OVEN OPTION - BASE w/15 ″ ″ ″ ″ ″ LEGS & TOP P/N 59720 HARD WA RE BA G 5, 6, 7, 10 & 11 1 2 3 4 9 8 12 ITEM NO. QTY PART NO. DESCRIPTION 1 1 60287 COMPLETE BASE WELDMENT 2 4 37900-0024[...]
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ITEM NO. QTY PART NO. DESCRIPTION 1 1 61126 COMPLETE BASE WELDMENT 2 4 37900-0102 TOP PLATE, LEG WELDMENT 3 2 22290-0009 SWIVEL CASTER W/BRAKE FLAT PLATE 4 2 22290-0010 SWIVEL CASTER FLAT PLATE 5 32 2000531 3/8 ″ -16 × 1 HEX SCREW, SST 6 32 21416-0001 3/8 ″ FLAT WASHER, SS 7 32 21422-0001 3/8 ″ SPLIT LOCK WASHER, ZP 8 1 22450-0228 RESTRAINT [...]
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ITEM NO. QTY PART NO. DESCRIPTION 1 1 60287 COMPLETE BASE WELDMENT 2 4 37900-0102 TOP PLATE, LEG WELDMENT 3 2 22290-0009 SWIVEL CASTER W/BRAKE FLAT PLATE 4 2 22290-0010 SWIVEL CASTER FLAT PLATE 5 32 2000531 3/8 ″ -16 × 1 HEX SCREW, SST 6 32 21416-0001 3/8 ″ FLAT WASHER, SS 7 32 21422-0001 3/8 ″ SPLIT LOCK WASHER, ZP 8 1 22450-0228 RESTRAINT [...]
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ITEM NO. QTY PART NO. DESCRIPTION 1 1 61126 COMPLETE BASE WELDMENT 2 4 45209 QUAD OUTRIGGER WELDMENT 3 2 22290-0009 SWIVEL CASTER, W/BRAKE FLAT PLATE 4 2 22290-0010 SWIVEL CASTER, FLAT PLATE 5 4 45206 INSERT,QUAD ADJUSTMENT FOOT 6 4 45205 SPACER,QUAD CASTER 7 32 A27727 3/83 -16x1-1/4 HEX BOLT 8 32 A21924 3/83 FLAT WASHER, SS 9 32 21422-0001 3/83 SP[...]
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ITEM NO. QTY PART NO. DESCRIPTION 1 1 60287 COMPLETE BASE WELDMENT 2 4 45209 QUAD OUTRIGGER WELDMENT 3 2 22290-0009 SWIVEL CASTER, W/BRAKE FLAT PLATE 4 2 22290-0010 SWIVEL CASTER, FLAT PLATE 5 4 45206 INSERT,QUAD ADJUSTMENT FOOT 6 4 45205 SPACER,QUAD CASTER 7 32 A27727 3/83 -16x1-1/4 HEX BOLT 8 32 A21924 3/83 FLAT WASHER, SS 9 32 21422-0001 3/83 SP[...]
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III. VENTILATION SYSTEM B. Recommendations NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIGURE 2-5 ARE RECOMMENDATIONS ONLY. LOCAL, NATIONAL AND INTERNATIONAL CODES MUST BE FOLLOWED WHEN INSTALLING THE VENTILATION SYSTEM. ANY APPLICABLE CODES SUPERSEDE THE RECOMMENDATIONS SHOWN IN THIS MANUAL. The rate of air flow exhausted through the ventilation system[...]
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IV. ASSEMBLY A. Top Panel and Base Pad Assembly 1. Install the four leg extensions onto the base pad using the 3/8 ″ -16 × 1 ″ screws, 3/8 ″ flat washers, and 3/8 ″ lockwashers supplied in the Base Pad Kit. See Figure 2-6. Check that the finished sides of each leg extension face OUTWARDS. One rear leg should be attached using three 3/8 ″[...]
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NOTE: DO NOT install top panel onto double or triple ovens until AFTER stacking the oven cavities. See Part B, Stacking. B. Stacking For single ovens, skip ahead to Part C, Restraint Cable Installation. IMPORTANT Middleby Marshall STRONGLY RECOMMENDS that PS840 Electric oven cavities be stacked BY AUTHORIZED PERSONEL. Contact your Middleby Marshall[...]
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D. Conveyor Installation 1. Unfold the conveyor as shown in Figure 2-12. Then, begin to slide the conveyor into the end of the oven. The conveyor can only be installed from the end of the oven with the drive motor. 2. Continue moving the conveyor into the oven until the frame protrudes equally from each end of the oven. Check that the crumb tray su[...]
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5. If it is necessary to add or remove conveyor links to achieve the correct tension, OR if it is necessary to reverse the conveyor belt for correct orientation, the belt will need to be removed from the conveyor frame. If this is necessary, perform the following procedure: • Remove the conveyor assembly from the oven and place it flat on the flo[...]
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17 III. ELECTRICAL CONNECTION INFORMATION FOR PS840E-SERIES OVENS. WARNING Authorized supplier personnel normally accom- plish the connections for the ventilation system, electric supply, as arranged by the customer. Following these connections, the factory-autho- rized installer can perform the initial startup of the oven. Check the oven data plat[...]
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18 UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS840-SERIES OVENS Figure 2-19. Typical PS840-Series Oven(s) Installation To O v e n To O v e n WARNING DO NOT USE CONDUIT FOR GROUND CONNECTION. CAUTION IT IS RECOMMENDED THAT THE OVEN BE PLACED UNDER A VENTILATION HOOD FOR ADEQUATE AIR SUPPLY AND VENTILATION. ELECTRIC SUPPLY TO BE PROVIDED BY CUS[...]
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19 SECTION 3 - OPERA TION I. LOCATION AND DESCRIPTION OF CONTROLS A. Main On/Off Button Turns all oven functions on or off. If the oven is below the set point, it will rise to the set point and turn the conveyor on. If it is turned off and the oven is above 200° F, the blowers will remain on until the oven drops below 200° F. B. Conveyor Time Set[...]
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20 II. NORMAL OPERATION - STEP-BY-STEP- A. Daily Startup Procedure 1. Check that the circuit breaker/fused disconnect is in the On position. Check that the window is closed. The touch panel display should be lit. 2. Adjust the conveyor to the desired bake time. 3. Press the temperature button to display right and left hand oven settings. Set temper[...]
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21 III. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION No electrical power • Check that the circuit breaker/fused disconnect is on. Make sure the emergenct stop button is on. Oven will not turn On. Faulty contactor Faulty heater element • Replace contactor. • Replace element. Oven will not heat. Air fingers may be as- sembled incor[...]
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Vents on front panel of oven Fan grills (3) on rear of oven and control compartment Vents (2) on rear of machinery compartment SECTION 4 - MAINTENANCE I. MAINTENANCE - DAILY A. Check that the oven is cool and the power is discon- nected, as described in the warning at the beginning of this Section. B. Clean ALL of the cooling fan grills and vent op[...]
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II. MAINTENANCE – MONTHLY NOTE: When removing the conveyor, refer to Figure 2-12 (in Section 2, Installation). A . Check that the oven is cool and the power is disconnected, as described in the warning at the beginning of this Section. B. Remove the crumb trays from the oven. C. Lift the drive end of the conveyor slightly, and push it forward int[...]
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III. MAINTENANCE – EVERY 3 MONTHS A. Check that the oven is cool and the power is discon- nected, as described in the warning at the beginning of this Section. B. Vacuum both of the blower mounts, and their surrounding compartments, using a shop vacuum. C. Tighten all electrical terminal screws. D. Split Belt Disassembly and Cleaning 1. Refer to [...]
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Figure 4-6. Disassembling the drive shaft E. Blower Belt 1. Remove the eight screws shown in Figure 4-7. Then, remove the rear panel from the oven. 2. Check the blower belt for the proper 1/4 ″ (6mm) deflec- tion at the center, and for cracking or excessive wear. See Figure 4-7. Overtightening the belt will cause premature bearing failure and pos[...]
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V. KEY SPARE PARTS – Available separately. See Figure 4-8. Figure 4-8. Key Spare Parts 26 ITEM QTY. P/N DESCRIPTION 1 1 60190 DIGITAL DISPLAY, PROGRAMMED 2 1 58920 CONVEYOR DRIVE MOTOR W/PICKUP ASSY. 3 1 58679 CONVEYOR SPEED CONTROLER 4 1 60196 KIT, THERMOCOUPLE 6 ″ 5 1 59668 BELT, BLOWER 6 1 57288 MOTOR, BLOWER, 2HP 7 1 33983 HIGH LIMIT CONTRO[...]
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27 SECTION 5 TR OUBLESHOOTING PROBLEM: PRODUCTS ARE OVERCOOKED OR UNDERCOOKED Check for correct setting of conveyor speed control. Set the conveyor speed control at correct setting. Check for correct setting on tempera- ture controller. Turn temperature control to correct setting. If products still cook incorrectly, call your Middleby Marshall Serv[...]
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SECTION 6 - WIRING DIA GRAM Middleby-Marshall Model Number E208-240 Volt 50/60 Hz, 3 Phase 28 60739 Rev. F[...]
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29 Middleby-Marshall Model Number E380-480 Volt 50/60 Hz, 3 Phase 60741 Rev. F[...]
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30 NOTES[...]
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Middleby Cooking Systems Group • 1400 Toastmaster Drive • Elgin, IL 60120 • USA • (847)741-3300 • FAX (847)741-4406 www .middleb y .com Middleby is proud to support the Commercial Food Equipment Service Association (CFESA). We recognize and applaud CFESA's ongoing efforts to improve the quality of technical service in the industry. W[...]