PS536GS Gas Domestic, Std. Export & CE ENGLISH/French/Spanish P/N 50236 Rev. B • V1 • 10/04 Price $30.00 PS536GS Gas Ovens Models: Combinations: • • • • PS536GS Gas Single Oven Double Oven (Two-Stack) Triple Oven (Three-Stack) OWNER'S OPERATING, INSTALLATION, AND PARTS MANUAL for domestic, standard export and CE export ovens © 2003 Middleby Marshall, Inc. is a registered trademark of Middleby Marshall, Inc. All rights reserved.
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. ENGLISH Ovens are shipped from the factory configured for use with natural gas. If permitted by local, national and international codes, at the time of installation the oven may be converted to propane gas operation.
TABLE OF CONTENTS page page V. Connection ...................................................... 13 I. OVEN USES ............................................................. 4 II. OVEN COMPONENTS ............................................. 4 A. Gas Utility Rough-In Recommendations ....... 14 A. Window ............................................................. 4 B. Gas Conversion .............................................. 14 B. Conveyor End Stop ......................................
SECTION 1 - DESCRIPTION I. Conveyor: Moves the food product through the oven. OVEN USES J. PS536GS 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. Not Shown: ENGLISH II. OVEN COMPONENTS - see Figure 1-1. A. Window: Allows the user to see and access food products inside the baking chamber. B. Conveyor End Stop : Prevents food products from falling off the end of the moving conveyor. C.
SECTION 1 - DESCRIPTION Main Blower Voltage Control Circuit Voltage 208/240V 120V conv. speed control & drive motor; all others as per line (208/240V) Phase Freq. Current Draw Poles Wires 1 Ph 50/60 Hz 6A * 2 Pole 3 Wire (2 hot, 1 gnd) * The current draw shown above is an average value for normal operation. The initial amperage draw on oven startup may exceed the listed value.
SECTION 2 - INSTALLATION WARNING - For gas ovens, after any conversions, readjustments, or service work on the oven: ENGLISH • • • • Perform a gas leak test. Test for correct air supply. Test for proper combustion and gas supply. Check that the ventilation system is in operation. 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.
SECTION 2 - INSTALLATION Figure 2-1 - Installation Kit 2 3 4a, 4b, 4c, 4d 8 12 16 14 13 15 6 11 5 10 7 9 I. INSTALLATION KIT - see Figure 2-1 Item 1 2 3 4a Qty. Single Oven 1 4 1 4 Qty. Double Oven 1 4 1 4 Qty. Triple Oven 1 4 1 -- 4b -- 4 -- Part No. 48605 3A80A8801 42893 42890 Inc. with domestic ovens? Yes Yes Yes Yes Inc.
SECTION 2 - INSTALLATION B. II. VENTILATION SYSTEM NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIGURE 22 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. IMPORTANT ENGLISH Where national or local codes require the installation of fire suppression equipment or other supplementary equipment, DO NOT mount the equipment directly to the oven.
SECTION 2 - INSTALLATION III. ASSEMBLY Figure 2-3 - Leg extension and casters installation Top Panel and Base Pad Assembly 1. Install the four leg extensions onto the base pad using the 3/8"-16x1" screws, 3/8" flat washers, and 3/8" lockwashers supplied in the Base Pad Kit. See Figure 2-3. Check that the finished sides of each leg extension face OUTWARDS. 2. 3. 4. 5.
SECTION 2 - INSTALLATION B. Stacking 1. For single ovens, skip ahead to Part C, Restraint Cable Installation. Stack an oven cavity on top of the lower oven. Check the following: ENGLISH • All four sides of the lower lip (on the bottom edge of the oven cavity) overlap the top of the lower oven. IMPORTANT Middleby Marshall STRONGLY RECOMMENDS that PS536GS oven cavities be stacked using the following: • The oven is level. • The oven is firmly seated. • • See Figure 2-6.
SECTION 2 - INSTALLATION Conveyor Installation 1. Unfold the conveyor as shown in Figure 2-9. 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 supports located on the underside of the conveyor frame rest firmly against the lower end plugs, as shown in Figure 2-10. 3.
SECTION 2 - INSTALLATION 5. ENGLISH 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: E. Final Assembly 6. Install the drive chain between the conveyor drive sprocket and the motor sprocket. To install the chain, it will be necessary to lift the drive end of the conveyor slightly.
SECTION 2 - INSTALLATION WARNING Authorized supplier personnel normally accomplish the connections for the ventilation system, electric supply, and gas supply, as arranged by the customer. Following these connections, the factory-authorized installer can perform the initial startup of the oven. The oven requires a ground connection to the oven ground screw located in the electrical junction box. (The box is shown in Figure 2-14.
SECTION 2 - INSTALLATION NOTE: Certain safety code requirements exist for the installation of gas ovens; refer to the beginning of Section 2 for a list of the installation standards. In addition: • In the USA, the installation must conform with local codes, or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1. • In Canada, the installation must conform with local codes, or in the absence of local codes, with the Natural Gas Installation Code, CAN/CGA-B 149.
SECTION 2 - INSTALLATION Checking the Gas Supply (Inlet) Pressure a. With the main gas supply valve closed and the circuit breaker/fused disconnect in the OFF ("O") position, open the inlet pressure tap shown in Figure 2-16 and attach a manometer to the tap. b. Depress the safety switches to allow the oven to operate. c. Open the main gas supply valve. Switch the circuit breaker/ fused disconnect to the ON ("I") position. d.
SECTION 3 - OPERATION ENGLISH E D B A C I. LOCATION AND DESCRIPTION OF CONTROLS A. "BLOWER" Switch: Turns the blowers and cooling fans on and off. The HEAT Switch has no effect unless the BLOWER Switch is in the “ON” position. B. "HEAT" Switch: Allows the burner to activate. Activation is determined by the settings on the Digital Temperature Controller. C. "CONVEYOR" Switch: Turns the conveyor drive motor on and off. D. Conveyor Speed Controller: Adjusts and displays the bake time.
SECTION 3 - OPERATION 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. 2. 3. 4. 5. 8. Turn the "CONVEYOR" ( ) switch to the “ON” ("I") position. If necessary, adjust the conveyor speed setting or by pressing the pushbuttons on the conveyor speed controller to change the displayed bake time.
SECTION 3 - OPERATION III. QUICK REFERENCE: DIGITAL TEMPERATURE CONTROLLER ENGLISH "HEAT ON" Light Display Shows the Set Point or the Actual Temperature in degrees Fahrenheit (F) or Celsius (C). Lights when the burner is in operation. "SP LOCK" Light Lights when the set point is locked out from changes. This setting can only be changed by service personnel. "SET PT" (setpoint) Light Lights when the set point is shown in the display.
SECTION 4 - MAINTENANCE WARNING 1. 2. 3. 4. Switch off the oven and allow it to cool. Do NOT service the oven while it is warm. Turn the full-flow gas safety valve to the off position. Turn off the electric supply circuit breaker(s) and disconnect the electric supply to the oven. If it is necessary to move a gas oven for cleaning or servicing, disconnect the gas supply before moving the oven. When all cleaning and servicing is complete: 1.
SECTION 4 - MAINTENANCE Figure 4-2 - Removing Air Fingers and Plates II. MAINTENANCE - MONTHLY Check that the oven is cool and the power is disconnected, as described in the warning at the beginning of this Section. B. Refer to Part D, Conveyor Installation, in the Installation section of this Manual. Then, remove the following components from the oven: • Conveyor end stop • Crumb trays • Chain cover • Drive chain • End plugs • Conveyor assembly C.
SECTION 4 - MAINTENANCE Remove the master links from each conveyor belt. Then, roll the belts up along the length of the conveyor to remove them from the frame. 3. Remove the two conveyor adjustment screws from the idler end of the conveyor frame, as shown in Figure 44. 4. Remove the idler shaft assembly from the conveyor. 5. Pull apart the two sections of the idler shaft. 6. Clean the shafts thoroughly using a rag.
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) deflection at the center, and for cracking or excessive wear. See Figure 4-7. Overtightening the belt will cause premature bearing failure and possible vibrations. A loose belt may also cause vibrations. 3. If necessary, adjust the tension of the belt by loosening the four motor mounting bolts.
SECTION 5 - PARTS LIST SECTION 5 - PARTS LIST 4 2 7 6 9 5 3 ENGLISH 1 8 10 13 12 11 16 15 14 17 I. KEY SPARE PARTS KIT ITEM QTY. P/N DESCRIPTION 1 1 47321 DIGITAL TEMPERATURE CONTROLLER 2 1 51067 CONVEYOR DRIVE MOTOR W/PICKUP ASSY.
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II. INSTALLATION KIT ITEM QTY. SINGLE OVEN QTY. DOUBLE OVEN QTY.
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III. PANELS, END PLUGS AND WINDOW ITEM QTY. P/N DESCRIPTION ITEM QTY. P/N DESCRIPTION WINDOW SHROUD 13 1 47633 BACK WALL NAMEPLATE, "MIDDLEBY MARSHALL" 14 1 36451 COOLING FAN 48437 HEAT GUARD PLATE 15 1 31497 FINGER GUARD, COOLING FAN 2 30927 BUMPER 16 1 See pp. 36-39 5 1 48512 ASSEMBLY, WINDOW (INC.
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IV. CONTROL COMPARTMENT ITEM QTY. SINGLE BELT QTY. SPLIT BELT P/N 12 1 1 35145 RESET SWITCH, HIGH LIMIT 13 1 1 31504 TRANSFORMER, 230V PRI : 120V SEC, 200VA KIT, CONVEYOR SPEED CONTROLLER WITH DIGITAL DISPLAY (INC. ITEM 3a) 14 1 1 37498 AIR SWITCH 15 2 2 31047 TERMINAL BLOCK, 8-POLE COOLING FAN, 230V ITEM QTY. SINGLE BELT QTY.
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V. MACHINERY COMPARTMENT AND GAS TRAIN ITEM QTY. 1 1 P/N 27470-0004 DESCRIPTION ITEM QTY. P/N DESCRIPTION FINGER GUARD 16a 3 44984 NOTE: The oven does NOT have a cooling fan in this location. The opening provides passive cooling only. ORIFICE, MAIN, NATURAL GAS 0.0935" (2.3749mm, #42 DRILL) 16b 3 47320 ORIFICE, MAIN, PROPANE 0.0595" (1.
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VI. REAR COMPARTMENT AND BLOWERS ITEM QTY. P/N DESCRIPTION ITEM QTY.
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VII. SINGLE-BELT CONVEYORS ITEM QTY. 1 1 2 1 P/N - 60" CONVEYOR P/N - 56" CONVEYOR P/N - 76" CONVEYOR 48847 48847 48790 <---- 48797 ----> ITEM QTY. 35 51067 ----> ASSEMBLY, STANDARD DRIVE SHAFT (INC.
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VIII. SPLIT-BELT CONVEYORS ITEM QTY. 1 1 2 1 P/N - 60" CONVEYOR P/N - 56" CONVEYOR P/N - 76" CONVEYOR 48847 48847 48790 <---- 48759 ----> DESCRIPTION ITEM QTY. P/N - 60" CONVEYOR P/N - 56" CONVEYOR P/N - 76" CONVEYOR DESCRIPTION FRAME, DRIVE SIDE 23 2 <---- 51067 ----> ASSEMBLY, SPLIT DRIVE SHAFT, STANDARD AND HIGH SPEED (INC.
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SECTION 6 - ELECTRICAL WIRING DIAGRAMS SECTION 6 - ELECTRICAL WIRING DIAGRAMS página 85 ESPAÑOL page 57 FRANÇAIS seite 29 DEUTSCH page 1 ENGLISH Fig. 6-1 - Wiring diagram, PS536GS Gas Oven 208/240V, 50/60 Hz, 1 Ph IMPORTANT An electrical wiring diagram for the oven is also located inside the machinery compartment.
Fig.
SECTION 6 - ELECTRICAL WIRING DIAGRAMS página 85 ESPAÑOL page 57 FRANÇAIS seite 29 DEUTSCH page 1 ENGLISH Fig.
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WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment. 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 parties other than your Middleby Marshall Authorized Service Agent may void your warranty.
