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Middleby Marshall PS740G Installation Manual

Ps740 series gas ovens
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PS740 Series
Gas
Domestic & Std. Export
ENGLISH
PS740 Series Gas Ovens
Model:
• PS740G Gas
OWNER'S OPERATING AND
INSTALLATION MANUAL
for domestic and standard export ovens
©2012 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
Combinations:
• Single Oven
• Double Oven (Two-Stack)
• Triple Oven (Three-Stack)
P/N 60250
September 28, 2012

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  • Page 1 INSTALLATION MANUAL for domestic and standard export ovens ©2012 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...
  • Page 2 Installation section of this Manual. For domestic and standard export ovens, instructions are included in the Gas Conversion Kit. It is suggested to obtain a service contract with a Middleby Marshall Authorized Service Agent. 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.
  • Page 3 © 2012 - Middleby Marshall, A Middleby Company. The Middleby Marshall logo is a registered trademark of Middleby Marshall, A Middleby Company. Middleby Marshall Inc. • 1400 Toastmaster Drive • Elgin, Illinois 60120-9272 U.S.A. • (847) 741-3300 • FAX: (847) 741 4406 P/N 60250 September 28, 2012...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Page Page SECTION 1 – DESCRIPTION ..........1 SECTION 3 – OPERATION ..........20 OVEN USES ............. 1 II. OVEN COMPONENTS ..........1 LOCATION AND DESCRIPTION OF CONTROLS 20 A. Conveyor Motor Drive ........1 II. NORMAL OPERATION, STEP-BY-STEP ....21 B.

  • Page 5: Section 1 – Description

    SECTION 1 – DESCRIPTION Figure 1-1. Oven Components I. OVEN USES PS740 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. OVEN COMPONENTS – see Figure 1-1. Conveyor Drive Motor: Moves the conveyor.
  • Page 6 I. OVEN SPECIFICATIONS 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″ (1524mm) 60″ (1524mm) Overall Length 76-1/2″ (1930mm) 76-1/2″ (1930mm) 76-1/2″ (1930mm) Conveyor Width – belt width is 32″ 33-1/2″...

  • Page 7: Section 2 – Installation

    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. burner blower.
  • Page 8 PS740 24″ OVEN INSTALLATION REQUIRED KITS AND EQUIPMENT PS740 PS740 PS740 PS740 Gas Oven Single Oven DoubleOven TripleOven Installation Option Base w/ OptionBase w/ OptionBase w/ TYPE OF INSTALLATION 15″ Legs, 6″ Legs, Casters& Top Casters & Top Casters & Top P/N61452 P/N61123 P/N61457...
  • Page 9 PS740 OVEN INSTALLATION REQUIRED KITS AND EQUIPMENT PS740 PS740 PS740 PS740 Gas Oven Single Oven DoubleOven TripleOven Installation Option Base w/ OptionBase w/ OptionBase w/ TYPE OF INSTALLATION 15″ Legs, 6″ Legs, Casters& Top Casters & Top Casters & Top P/N61033 P/N67025 P/N67026...
  • Page 10 Figure 2-2A. Model PS740 24″ Single Oven Option Base with Legs and Top HARDWARE BAG 5, 6, 7, 10 & 11 PARTS LIST FOR PS740 SERIES 24″ SINGLE OVEN OPTION - BASE w/15″ LEGS & TOP P/N 67027 ITEM NO. PART NO.
  • Page 11 Figure 2-2B. Model PS740 32″ Single Oven Option Base with Legs and Top HARDWARE BAG 5, 6, 7, 10 & 11 PARTS LIST FOR PS740 SERIES 32″ SINGLE OVEN OPTION - BASE w/15″ LEGS & TOP P/N 67025 ITEM NO. PART NO.
  • Page 12 Figure 2-3A. Model PS740 24″ Double Oven Option Base with Legs and Top HARDWARE BAG 5, 6, 7, 10 & 11 PARTS LIST FOR PS740 SERIES 24″ DOUBLE OVEN OPTION - BASE w/6″ LEGS & TOP P/N 67028 ITEM NO. PART NO.
  • Page 13 Figure 2-3B. Model PS740 32" Double Oven Option Base with Legs and Top HARDWARE BAG 5, 6, 7, 10 & 11 PARTS LIST FOR PS740 SERIES 32″ DOUBLE OVEN OPTION - BASE w/6″ LEGS & TOP P/N 67026 ITEM NO. PART NO.
  • Page 14 Figure 2-4A. Model PS740 24″ Triple Oven Option Base with Outriggers and Top HARDWARE BAG 7, 8, 9, 10, 11, 12, 13, 14, & 17 PARTS LIST FOR PS740 SERIES 24″ TRIPLE OVEN OPTION - BASE w/CASTERS & TOP P/N 64946 ITEM NO.
  • Page 15 Figure 2-4B. Model PS740 32″ Triple Oven Option Base with Outriggers and Top HARDWARE BAG 7, 8, 9, 10, 11, 12, 13, 14, & 17 PARTS LIST FOR PS740 SERIES 32″ TRIPLE OVEN OPTION - BASE w/CASTERS & TOP P/N 66164 ITEM NO.

  • Page 16: Iii. Ventilation System

    III. VENTILATION SYSTEM B. Recommendations NOTE THAT THE HOOD DIMENSIONS SHOWN IN F I G U R E 2 - 5 A R E R E C O M M E N D A T I O N S O N L Y . IMPORTANT LOCAL, NATIONAL AND INTERNATIONAL CODES MUST BE FOLLOWED WHEN INSTALLING THE...

  • Page 17: Iv. Assembly

    IV. ASSEMBLY Figure 2-6. Leg extension and casters installation A. Top Panel and Base Pad Assembly 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.

  • Page 18: B. Stacking

    For quad ovens, lock the two Gas oven cavities be stacked BY AUTHORIZED PERSONEL. front casters. Contact your Middleby Marshall Authorized Service Agent for Figure 2-10. Top panel installation complete stacking instructions. Stack an oven cavity on top of the lower oven. Check the following: #10-32 ×...

  • Page 19: D. Conveyor Installation

    D. Conveyor Installation Figure 2-13. Conveyor placement 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. Crumb tray support Continue moving the conveyor into the oven until the frame...

  • Page 20: Vi. Electrical Supply

    REVERSING THE CONVEYOR BELT If it is necessary to add or remove conveyor links to achieve the correct tension, OR if it is necessary to reverse the Remove the conveyor from the oven and find the master link conveyor belt for correct orientation, the belt will need to location.

  • Page 21: Connection

    The terms of the oven’s warranty require all Gas Meter start-ups, conversions and service work to be • One or two cavities: 750 cfh meter performed by a Middleby Marshall Authorized Service Agent. • Three oven cavities: 1200 cfh meter Gas Line •...

  • Page 22: B. Connection

    B. Connection Figure 2-18. Flexible Gas Hose Installation 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). 1/2″...

  • Page 23: G. Checkout

    Figure 2-20. Burner Assembly Adjusting the Minimum Pressure Setting Disconnect pressure feedback connection (if appcable). 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).

  • Page 24: Section 3 – Operation

    SECTION 3 - OPERATION WARNING DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION. C. Temperature Control/Display D. Message Bar E. Energy Level E. Energy Level Indicators Indicators B. Conveyor Time Setting A. Main On/Off Button I.

  • Page 25: Ii. Normal Operation, Step-By-Step

    II. NORMAL OPERATION - STEP-BY-STEP- A. Daily Startup Procedure NOTE: Right to Left temperature settings should not exceed a differential of 20 °F. Check that the circuit breaker/fused disconnect is in the On position. Check that the window is closed. The touch Right Set point temperature - Pressing on this value allows panel display should be lit.

  • Page 26: Iii. Quick Reference: Troubleshooting

    III. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION Oven will not No electrical power • Check that the circuit breaker/fused disconnect is on. Make turn On. sure the emergenct stop button is on. No gas pressure • Make sure main gas is on. Oven will not heat. Burner did not light • Turn oven off, and restart. If it still does not light, call for service. Oven is operating, but little Air fingers may be as- •...

  • Page 27: Section 4 – Maintenance

    NOTE ANY replacement parts that require access to the interior of the oven may ONLY be replaced by a Middleby Marshall Autho- rized Service Agent. It is also strongly recommended that the 3-Month Maintenance and 6-Month Maintenance procedures in this section be performed ONLY by a Middleby Marshall Authorized Service Agent.

  • Page 28: Ii. Maintenance – Monthly

    Figure 4-2. Removing Air Fingers and Plates II. MAINTENANCE – MONTHLY NOTE: When removing the conveyor, refer to Figure 2-12 (in Section 2, Installation). Check that the oven is cool and the power is disconnected, as described in the warning at the beginning of this Sec- tion.

  • Page 29: Iii. Maintenance – Every 3 Months

    III. MAINTENANCE – EVERY 3 MONTHS two sections of the shaft. See Figure 4-4. Replace the conveyor adjustment screws as shown in A. Check that the oven is cool and the power is disconnected, Figure 4-4. To allow the conveyor belt to be reinstalled as described in the warning at the beginning of this Section.

  • Page 30: Iv. Maintenance – Every 6 Months

    Figure 4-7. Rear panel access Figure 4-6. Disassembling the drive shaft Remove eight (8) screws to remove rear panel Bearings (2 total) Blower belt Blower motor Loosen four (4) screws to adjust mo- tor position and belt tension IV. MAINTENANCE - EVERY 6 MONTHS E.
  • Page 31 V. KEY SPARE PARTS – Available separately. See Figure 4-8. 16, 17, 18 Figure 4-8. Key Spare Parts KEY SPARE PARTS PS740 GAS ITEM QTY. DESCRIPTION 60190 Digital Display, Programmed 58920 Motor, Conveyor Drive 58679 Conveyor Control Board 60194 Inverter, Programmed M9608 Power Supply 60196...
  • Page 32 SECTION 5 - WIRING DIAGRAM P/N 60250 September 28, 2012...
  • Page 33 NOTES P/N 60250 September 28, 2012...
  • Page 34 NOTES P/N 60250 September 28, 2012...
  • Page 35 NOTES P/N 60250 September 28, 2012...
  • Page 36 NOTICE During the warranty period, ALL parts replacement and servicing should be performed by your Middleby Marshall Authorized Service Agent. Service that is performed by par- ties other than your Middleby Marshall Authorized Service Agent may void your war- ranty.

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Ps740 series

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