Instruction/ maintenance manual of the product PS840 Series Middleby Marshall
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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.
NOTICE: This Owner's Operating and Installation Manual should be given to the user. The operator of the oven should be familiar with the functions and operation of the oven. This manual must be kept in a prominent, easily reachable location near the oven.
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.
iv NO TE Wiring Diagrams are in Section 5 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 .................
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.
2 I. O VEN SPECIFICA TIONS Table 1-1 Dimensions Single Oven Double Oven Triple Ove Overall Height 48-3/16 ″ (1219mm) 62-3/4 ″ (1575mm) 78-11/16 ″ (1981mm) Overall Depth 60 ″ (1524mm) 60 ″ (1.
SECTION 2 – INSTALLATION WARNING – After any conversions, readjustments, or service work on the oven: • Perform a gas leak test. • Test for proper combustion and gas supply. • Test for correct air supply, particularly to the • Check that the ventilation system is in operation.
4 3 2 4 6 5 1 PARTS LIST FOR SERIES PS840 GAS OVEN INSTALLATION KIT P/N 61452 (Two required for double oven) (Three required for triple oven) Figure 2-1A.
PS840 32 ″ ″ ″ ″ ″ O VEN INST ALLA TION REQUIRED KITS AND EQUIPMENT PS840 PS840 PS840 PS840 Gas Oven Single Oven DoubleOven TripleOven Installation Option Base w/ OptionBase w/ OptionBase w/.
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.
Figure 2-2B. Model PS840 32 ″ ″ ″ ″ ″ Single Oven Option Base with Legs and Top PARTS LIST FOR PS840 SERIES 32 ″ ″ ″ ″ ″ 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.
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 2.
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 2.
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.
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.
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.
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.
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 Gas oven cavities be stacked BY AUTHORIZED PERSONEL.
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.
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.
on the oven serial plate. The location of the serial plate is shown in Figure 1-1 (in Section 1, Description). A fused disconnect switch or a main circuit breaker (customer furnished) MUST be installed in the electric supply line for each oven cavity.
18 B. Connection Check the oven’s gas supply requirements before making the gas utility connection. Gas supply requirement are listed on the oven’s serial plate and in Table 1-4. Gas Orifice and Pressure Specifications (in Section 1, Description).
19 F. Adjusting the Minimum Pressure Setting 1. Disconnect pressure feedback connection (if appcable). 2. Connect a suitable pressure gauge to pipe line or to outlet pressure tap of gas control concerned, to measure burner pressure (measuring point must be as near to burner as possible).
SECTION 3 - OPERA TION 20 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.
21 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.
22 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. No gas pressure Burner did not light • Make sure main gas is on.
Vents on front panel of oven Fan grills (2) on rear of oven and control compartment Vent (1) on rear of machinery compartment SECTION 4 - MAINTENANCE WARNING Possibility of injury from moving parts and electrical shock exists in this oven. Switch off and lockout/tagout the electric supply BEFORE beginning to disassemble, clean, or service any oven.
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.
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.
Figure 4-6. Disassembling the drive shaft E. Blower Belt 1. Remove the six 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.
V. KEY SPARE PARTS – Available separately. See Figure 4-8. KEY SPARE PARTS PS840 GAS ITEM QTY. P/N DESCRIPTION 1 1 60190 Digital Display, Programmed 2 1 58920 Motor, Conveyor Drive 3 1 58679 Conveyo.
SECTION 5 - WIRING DIA GRAM Middleby-Marshall Model Number G208-240 Volt 50/60 Hz, 1 Phase 28 59324 Rev. E.
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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.
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