Metos PS 540 Installation And Operation Manual
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Metos PS 540 Installation And Operation Manual

Metos PS 540 Installation And Operation Manual

Conveyor oven
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CONVEYOR OVEN
TYPE: PS 540
Installation and Operation Manual
S/N:
Rev.: 2.0

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Summary of Contents for Metos PS 540

  • Page 1 CONVEYOR OVEN TYPE: PS 540 Installation and Operation Manual S/N: Rev.: 2.0...
  • Page 3 Dear Customer, Congratulations on deciding to choose a Metos appliance for your kitchen activities. You made an excellent choice. We will do our best to make you a satisfied Metos customer like thousands of customers we have around the world.
  • Page 4 2.6.2005 Rev. 2.0...

  • Page 5: Table Of Contents

    2.6.2005 Rev. 1. General ......................1 1.1 Symbols used in the manual ..................1 1.2 Symbols used on the appliance ..................1 1.3 Checking the relation of the appliance and the manual ..........1 2. Safety ......................2 2.1 Safe use of the appliance ....................2 2.2 Safety instructions in case of malfunction ..............
  • Page 6 2.6.2005 Rev. 5.2 Ventilation guidelines ....................35 5.3 Positioning the ovens ....................36 5.4 Ventilation hood ......................36 5.5 Ventilation capture test ....................37 5.6 Conveyor rear stop and end stop installation .............. 37 5.7 Electric connection ...................... 38 6. Troubleshooting ..................39 8.

  • Page 7: General

    2.6.2005 Rev. 2.0 General 1. General Carefully read the instructions in this manual as they contain important information re- garding proper, efficient and safe installation, use and maintenance of the appliance. Keep this manual in a safe place for eventual use by other operators of the appliance. The installation of this appliance must be carried out in accordance with the manufactur- er’s instructions and following local regulations.

  • Page 8: Safety

    2.6.2005 Rev. 2.0 Safety 2. Safety 2.1 Safe use of the appliance The oven has to be used by trained personnel only. Do not store any combustible materials or flammable liquids anywhere near the appliance. Never disassemble or clean the oven with the blower switch or any other oven control turned “ON”...

  • Page 9: Functional Description

    The PS 540 ovens may be used either as a single oven or stacked for use as double or triple ovens. The major difference between the ovens is the width of the conveyor.

  • Page 10: Principle Of Air Flow

    2.6.2005 Rev. 2.0 Functional description A triple oven consists of three stacked single ovens. The lower oven is mounted on a base pad with short legs and casters. On a double or triple oven, the ovens operate independently. All ovens use identical con- trols and components.

  • Page 11: Heat Transfer And How It Works

    Radiation: This path has to do with objects radiating heat.Dark objects absorb heat where- as light or shiny objects reflect more heat. This is the reason that the inside of PS 540 ov- ens is light in colour-to reflect more heat back on the food product.

  • Page 12: Oven Components

    Rev. 2.0 Functional description A PS 540 oven can accommodate up to four bottom and four top air fingers. Some PS 540 ovens used to bake pizza have four bottom fingers and two top fingers. For special product baking requirements, a number of other styles of fingers and finger arrangements are available from the factory.

  • Page 13: Conveyor Motor And Conveyor Belt

    2.6.2005 Rev. 2.0 Functional description 3.3.1 Conveyor motor and conveyor belt The conveyor belt is driven by a variable-speed electric motor operating through a gear reducer. The motor speed is controlled by a digital control. The stainless steel wire belt can travel in either direction at variable rates ranging from 3 minutes to 30 minutes.

  • Page 14: Electric Heaters

    2.6.2005 Rev. 2.0 Functional description The blower fan is located at the rear of the oven. These blowers force heated air through the air fingers. The blower switch must be set to “ON” or “I” for oven warm-up and baking. 3.3.3 Electric heaters There are six heater elements mounted on the inside of the rear panel.

  • Page 15: Air Fingers And Blank Plates

    2.6.2005 Rev. 2.0 Functional description 3.3.6 Air fingers and blank plates An air finger assembly is made up of three parts: 1.Outer plate is the removable covering with tapered holes, which direct the air stream onto the product being baked. 2.Inner plate - the perforated inner plate is vital in forming the unique air jets.

  • Page 16: Door Safety Switch

    2.6.2005 Rev. 2.0 Functional description 3.4.1 Door safety switch The door safety switch is located at the lower right side of control panel opening. Opening the control panel door permits this switch to open, disconnecting power to all electrical controls. Do not touch the wires going to this safety switch.

  • Page 17: Temperature Controller

    2.6.2005 Rev. 2.0 Functional description 3.4.4 Temperature controller The temperature controller is a solid state PID type to maintain the operator-set tempera- ture. The temperature controller continuously monitors the oven temperature and turns on the modulating solid state relay controller. The heat is on for the time required to main tain a constant oven temperature.
  • Page 18 2.6.2005 Rev. 2.0 Functional description To check conveyor speed, place a product item at the entrance end of baking chamber as shown in the picture above. Time how long it takes for the leading edge of the item to go from the entrance end of baking chamber to the exit end.

  • Page 19: Control Panel

    2.6.2005 Rev. 2.0 Functional description 3.5 Control panel...
  • Page 20 2.6.2005 Rev. 2.0 Functional description • Display shows the set point or the actual temperature in degrees (Fahrenheit or Celsius). • “HEAT ON” lights when the burner is in operation. • “SET PT” lights when the set point is shown in the display. •...

  • Page 21: Operation Instructions

    2.6.2005 Rev. 2.0 Operation instructions 4. Operation instructions 4.1 Operation procedures 4.1.1 Daily start-up procedure Check that the circuit breaker/fused disconnect switch is in the ON position. Check that the oven window (if so equipped) is closed. Turn the “BLOWER” switch to the “ON” (“I”) position. This starts the main blower fan and cooling fans.

  • Page 22: Daily Shutdown Procedure

    2.6.2005 Rev. 2.0 Operation instructions Turn the “HEAT” switch to the “ON” (“I”) position and wait for the “HEAT ON” light to turn on. Wait for the oven to heat to the set point temperature. Higher set point temperature will require a longer wait.

  • Page 23: Daily Cleaning And Maintenance

    2.6.2005 Rev. 2.0 Operation instructions Do not use a caustic oven cleaner, which can damage the aluminized finger manifold sur- faces. When cleaning your oven, first remove all heavy debris with a vacuum cleaner. Use a damp cloth for light cleaning. For heavier cleaning of baked on grease and carbon deposits use a non-caustic cleaner that will not react with the aluminized finger manifold surfaces.
  • Page 24 2.6.2005 Rev. 2.0 Operation instructions C. Conveyor belt and crumb pans Everyday, just after starting the oven, stand at the unloading end of the conveyor and with a brush remove food particles (crumbs etc.) clinging to the conveyor belt, brushing them into the crumb pan.

  • Page 25: Monthly Cleaning And Maintenance

    2.6.2005 Rev. 2.0 Operation instructions 4.2.2 Monthly cleaning and maintenance The oven interior may require cleaning more than once a month depending on the volume of baking. To clean the interior you have to disassemble some parts of the oven. A.
  • Page 26 2.6.2005 Rev. 2.0 Operation instructions 4. Remove conveyor drive chain cover as shown below. 5. Remove tension from drive chain by lifting and pushing the conveyor slightly into the oven. Remove drive chain from conveyor drive sprocket (see fig.below).
  • Page 27 2.6.2005 Rev. 2.0 Operation instructions 6. Remove the split belt conveyor assembly as shown. The split belt conveyor assembly can only be removed from the drive end of the oven. 7. Begin sliding conveyor out of the oven as shown. 8.

  • Page 28: Air Fingers Disassembly For Cleaning

    2.6.2005 Rev. 2.0 Operation instructions Be careful not to bump the drive sprocket while handling the conveyor to avoid damaging the drive shaft. B. Air fingers disassembly for cleaning 1. As the air fingers are removed, use a felt pen to mark all parts of the fingers. This in- cludes the finger manifold, inner plate and the outer plate.
  • Page 29 2.6.2005 Rev. 2.0 Operation instructions 3. Remove the air fingers, pull the finger at the back side - pull straight out as shown. It is highly recommended that each finger be marked before removing so it is placed in exactly the same position when reassembled. 4.

  • Page 30: Cleaning The Window

    2.6.2005 Rev. 2.0 Operation instructions 6. To remove the inner plate, pull the plate out and then up. 7. The outer finger plate is stainless and may be cleaned by either soaking in a hot, strong detergent solution or using a caustic cleaner. The conveyor belt can also be cleaned in the same way.

  • Page 31: Reassembly Of Air Fingers

    2.6.2005 Rev. 2.0 Operation instructions 1. Remove the window by opening the window and unscrewing the window knobs from each end. 2. Push the window all the way inside the oven, making sure it is clear of the frame. Now, turn the window sideways while inside the oven and then remove it.
  • Page 32 2.6.2005 Rev. 2.0 Operation instructions 2. Reassemble the inner plate. keep your fingers clear so you won’t pinch them. The in- nerplate of a finger will only go in one way because of its design. 3. Replace the outer plate by placing your hands flat on the top of the plate and pushing down.
  • Page 33 2.6.2005 Rev. 2.0 Operation instructions...

  • Page 34: Reinstall End Plugs

    2.6.2005 Rev. 2.0 Operation instructions E. Reinstall end plugs 1. Reinstall lower end plug. Be sure to tighten the wing screw on the end plug. 2. Reinstall conveyor. 3. Reinstall upper end plug. Be sure to tighten two wing screws on the end plug. F.

  • Page 35: Checking Conveyor Belt Tension

    2.6.2005 Rev. 2.0 Operation instructions 2. Reinstall the conveyor rear stop. Reinstall the conveyor end stop. G. Checking conveyor belt tension Oven conveyor belt must be cool when adjusting belt. Do not adjust belt if HOT. 1. With the conveyor assembly in the oven, stand at one end of conveyor and check ten- sion by lifting the conveyor belt at centre of the oven chamber opening.

  • Page 36: Conveyor Belt Link Removal

    2.6.2005 Rev. 2.0 Operation instructions H. Conveyor belt link removal 1. Using long nose pliers, an entire link can be removed with the conveyor assembly either in or out of the oven. Position master links at end of conveyor as shown in the figure be- low.
  • Page 37 2.6.2005 Rev. 2.0 Operation instructions 3. Remove the outside master links on the right and left sides of the conveyor belt as shown. 4. Unhook the link to be removed. 5. Pull on the belt link section and remove. Do not discard the link removed as it may be used for making spare master links.
  • Page 38 2.6.2005 Rev. 2.0 Operation instructions 6. Before connecting the inside master links, notice that these links have a correct position (see fig.below). The link at the right is in correct (horns up) position for inserting into the conveyor belt. The horns facing down are in the incorrect position. 7.

  • Page 39: Replacing Conveyor Belt

    2.6.2005 Rev. 2.0 Operation instructions 9. Replace all parts removed from the oven. I. Replacing conveyor belt If a section of the conveyor belt needs replacing, it can be done with conveyor assembly either in or out of the oven. The section of the conveyor belt furnished with oven in the installation kit may then be used to replace a section.
  • Page 40 2.6.2005 Rev. 2.0 Operation instructions 4. Reassemble conveyor drive chain cover and then reassemble the bottom cover to the drive chain cover. 5. Install both upper and end plugs.

  • Page 41: Installation

    An electrical wiring diagram for the oven is located inside the machinery compartment 5.2 Ventilation guidelines A mechanically driven ventilation system is required for the PS 540 conveyorized electric ovens. Proper ventilation is the oven owner’s responsibility. Improper ventilation can inhibit oven performance.

  • Page 42: Positioning The Ovens

    2.6.2005 Rev. 2.0 Installation 5.3 Positioning the ovens Only suggested dimensions are shown. Utility code requirements supersede any factors shown. 5.4 Ventilation hood The rate of air flow exhausted through the ventilation system is generally between 40 and 70 m3/min., but may vary depending on the oven configuration and hood design. To avoid a negative pressure condition in the kitchen area, return air must be brought back to re- plenish the air that was exhausted.

  • Page 43: Ventilation Capture Test

    2.6.2005 Rev. 2.0 Installation Return air from fan driven system within the hood must not blow at opening of bake chamber or poor oven baking performance will result. 5.5 Ventilation capture test It is recommended that a 30 second smoke candle test be performed on your ventilation hood system.

  • Page 44: Electric Connection

    (not furnished) to enable safe access to the terminal block from which oven power is distributed. The electric current rating for each conductor supplying PS 540-series ovens ranges from a minimum of 95 amperes to a maximum of 100 amperes. The 240VAC oven uses two...

  • Page 45: Troubleshooting

    2.6.2005 Rev. 2.0 Troubleshooting 6. Troubleshooting PROBLEM Possible cause Measures Product are overcooked or under- The controls may be set incorrectly. • Check for correct setting of conveyor cooked speed control. • Check for correct setting on tempera- ture controller. •...
  • Page 46 2.6.2005 Rev. 2.0 Troubleshooting...

  • Page 47: Technical Specifications

    2.6.2005 Rev. 2.0 Technical specifications 8. Technical specifications Wiring diagram 380V PS540 Wiring diagram 380-480V PS540 Installation drawing PS540 single oven Installation drawing PS540 double oven Installation drawing PS540 triple oven Installation drawing Restraint cable...
  • Page 48 Wiring diagram 380V PS540...
  • Page 49 Wiring diagram 380-480V PS540...
  • Page 50 Installation drawing PS540 single oven...
  • Page 51 Installation drawing PS540 double oven...
  • Page 52 Installation drawing PS540 triple oven...
  • Page 53 Installation drawing Restraint cable...

  • Page 54: Type Specification

    240V; 380V; 480V Control circuit voltage PS540 208-240V Phase PS540 Frequency PS540 50/60Hz Amperage draw PS540 100 Amp; 50 Amp Poles PS540 4 pole Wires PS540 4 wire (3 hot, 1 grd.); 5 wire (3 hot, 1 neut. 1 grd) PS540=PS 540...

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