Moffat Turbofan E311 Service Manual
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Moffat Turbofan E311 Service Manual

Max series
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See also: Operation & Installation Manual
E311 / E311MS
CONVECTION OVEN
SERVICE
MANUAL
Max Series
S/N Begins 258733
Manual P/N M0ME311
Revision 4/F3535
September, 2004

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Summary of Contents for Moffat Turbofan E311

  • Page 1 E311 / E311MS CONVECTION OVEN SERVICE MANUAL Max Series S/N Begins 258733 Manual P/N M0ME311 Revision 4/F3535 September, 2004...
  • Page 2 WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. Revision 4/F3535 © Moffat Ltd, June 2004...

  • Page 3: Table Of Contents

    SPARE PARTS ..........................43 ACCESSORIES / OPTIONS......................45 PARTS DIAGRAM......................... 46 11.1 Main Assembly 11.2 Control Panel Assembly 11.3 Glass Door Assembly 11.4 Stainless Steel Door Assembly IMPORTANT: MAKING ALTERATIONS MAY VOID WARRANTIES AND APPROVALS. Revision 4/F3535 © Moffat Ltd, June 2004...
  • Page 4 SERVICE CONTACTS ........................54 APPENDIX A. POWER RELAY UPGRADE KIT..................56 Revision 4/F3535 © Moffat Ltd, June 2004...

  • Page 5: Specifications

    1. SPECIFICATIONS MODEL: E311 - NOT US/CAN ELECTRICAL ENTRY SIDE FRONT PLAN LEGEND - Electrical connection entry point Dimensions shown in millimetres. Revision 4/F3535 © Moffat Ltd, June 2004...
  • Page 6 4 3 4 " 8 " ELECTRICAL ENTRY 1 3 4 " FRONT SIDE PLAN LEGEND - Electrical connection entry point - Water entry - 9mm / ” I.D male hose connection Dimensions shown in inches. Revision 4/F3535 © Moffat Ltd, June 2004...
  • Page 7 MODEL: E311MS NOT US/CAN ELECTRICAL ENTRY FRONT SIDE PLAN LEGEND - Electrical connection entry point - Water entry - 9mm / ” I.D male hose connection Dimensions shown in millimetres. Revision 4/F3535 © Moffat Ltd, June 2004...
  • Page 8 4 3 4 " 8 " ELECTRICAL ENTRY 1 3 4 " SIDE FRONT PLAN LEGEND - Electrical connection entry point - Water entry - 9mm / ” I.D male hose connection Dimensions shown in inches. Revision 4/F3535 © Moffat Ltd, June 2004...
  • Page 9 Other Countries 3-pin 250V 13A minimum, type to meet country standards WATER SUPPLY CONNECTION (US/CAN ONLY) Max Pressure 550 kPa / 5.5 bar / 80 psi Min Pressure 100 kPa / 1.0 bar / 15 psi Revision 4/F3535 © Moffat Ltd, June 2004...

  • Page 10: Installation

    Turn on water supply to check for leaks. unloading. IMPORTANT: MAXIMUM INLET WATER PRESSURE IS 550 kPa / 80 psi. Revision 4/F3535 © Moffat Ltd, June 2004 -10-...
  • Page 11 3). Ensure that they are tight. Figure 2.2 RATING PLATE LOCATION The rating plate for the E311 convection oven is located at the bottom left corner of the RH side panel. Rating Plate Figure 2.3 Revision 4/F3535 © Moffat Ltd, June 2004 -11-...

  • Page 12: Operation

    Push switch to activate oven light. (Light illuminates while button latched in the down position) (From S/N 258733 “E311MS” models) (From S/N 260862 “E311” models). (Light illuminates while button depressed) (Up to S/N 260861). Revision 4/F3535 © Moffat Ltd, June 2004 -12-...

  • Page 13: Description Of Controls-Us/Can Models Only

    Push switch to activate oven light. (Light illuminates while button latched in the down position) (From S/N 258733 “E311MS” models) (From S/N 260862 “E311” models). (Light illuminates while button depressed) (Up to S/N 260861). Revision 4/F3535 © Moffat Ltd, June 2004 -13-...

  • Page 14: Explanation Of Control System

    Grill position is selected with the door open, the inject water into the water trough at the bottom of elements will remain On continuously and the the left hand side rack in the oven. Releasing the Revision 4/F3535 © Moffat Ltd, June 2004 -14-...
  • Page 15 When the 3 hour timer has run down and reached the Hold position the two switch contacts change Revision 4/F3535 © Moffat Ltd, June 2004 -15-...

  • Page 16: Maintenance

    To replace, locate the bottom edge of the baffle over the bottom element terminal plate and secure in place with the oven lamp glass. IMPORTANT: DO NOT OVER- TIGHTEN THE LAMP GLASS. Revision 4/F3535 © Moffat Ltd, June 2004 -16-...

  • Page 17: Routine Procedures

    12 months properly. ELEMENTS Check that element resistances are correct to their rating 12 months (refer 6.3.13) WATER NOZZLE Check for liming / scale build-up in water nozzle. 12 months (US/CAN ONLY) Revision 4/F3535 © Moffat Ltd, June 2004 -17-...

  • Page 18: Trouble Shooting Guide

    Remove, clean or replace. (Refer service section 6.3.15) Fault with water valve. Service or replace as required. (Refer fault diagnosis 6.1.5) (Refer service section 6.3.13, 6.3.14) Steam switch faulty. Replace. (Refer service section 6.3.4) Revision 4/F3535 © Moffat Ltd, June 2004 -18-...
  • Page 19 Fan not working. Check fan operation. Thermostat calibration. Correct calibration. (Refer fault diagnosis 6.1.11) (Refer service section 6.4.1) Element(s) not working. Correct element fault. (Refer Fault: Top element, Fault: Bottom element) Revision 4/F3535 © Moffat Ltd, June 2004 -19-...
  • Page 20 Door seal incorrectly fitted. Correctly install door seal. (Refer service section 6.3.22) Door ball catch setting incorrect. Adjust. (Refer service section 6.4.3) Door pivot bushes / pins worn. Replace. (Refer service section 6.3.23) Revision 4/F3535 © Moffat Ltd, June 2004 -20-...

  • Page 21: Service Procedures

    Hold Relay (From S/N 232054) ..................31 6.3.12 Mini-Contactor (To S/N 232054) ................... 31 6.3.13 Water Solenoid—US/Can Only ..................32 6.3.14 Water Solenoid Cleaning—US/Can Only..............32 6.3.15 Spray Nozzle—US/Can Only ..................33 Revision 4/F3535 © Moffat Ltd, June 2004 -21-...
  • Page 22 ADJUSTMENT / CALIBRATION....................36 6.4.1 Thermostat Calibration ....................36 6.4.2 Door Microswitch Adjustment..................37 6.4.3 Door Alignment......................37 6.4.4 Hold Temperature Adjustment ..................38 6.4.5 60 Minute Timer Zero Position Adjustment ..............38 Revision 4/F3535 © Moffat Ltd, June 2004 -22-...

  • Page 23: Fault Diagnosis

    Check voltage supply across the water valve solenoid coil with the steam switch depressed. If Fan motor faulty there is no power supply then check the control Check the supply voltage across motor terminals. panel steam switch. Revision 4/F3535 © Moffat Ltd, June 2004 -23-...

  • Page 24: Continuous Water Out Of Oven Water Nozzle-Us/Can Only

    A and B on the relay). If the relay is not (terminal 2) of timer. If there is no voltage at energised, and there is no voltage at terminal 1 terminal 1 then check wiring. Revision 4/F3535 © Moffat Ltd, June 2004 -24-...

  • Page 25: No Temperature Control

    If there is no voltage then the thermostat is faulty— replace. If the voltage is correct and the heating light is on then check all wiring to elements. Figure 6.1.6 Revision 4/F3535 © Moffat Ltd, June 2004 -25-...

  • Page 26: Top Element Not Working (In Bake Mode-Not Grill / Broil)

    5, but not at P5 when thermostat is in switch. If there is voltage then check that grill position, then the switch is faulty—replace there is voltage at terminal 4 and terminal 7 of thermostat assembly. Revision 4/F3535 © Moffat Ltd, June 2004 -26-...

  • Page 27: No Hold Indicator

    If there is no voltage then check voltage at terminal 1 of timer. If there is voltage at 1, but no voltage at terminal 3 with timer in hold position, then timer switch is faulty—replace. Revision 4/F3535 © Moffat Ltd, June 2004 -27-...

  • Page 28: Access

    Roast ‘n Hold Time Up Indicator Roast Timer (180 minute) Four Screws Steam Switch / Light Switch (US/Can only) (Not US/Can) Light Switch (US/Can only) Figure 6.2.3 Hold Thermostat 2) Remove panel. Figure 6.2.5 Revision 4/F3535 © Moffat Ltd, June 2004 -28-...

  • Page 29: Replacement

    3) Transfer the wires to the new relay. the wires from the back of the neon. 4) Secure the relay to the rear panel with two screws and replace the service panel. Revision 4/F3535 © Moffat Ltd, June 2004 -29-...

  • Page 30: Buzzer

    Two Screws Screws Figure 6.3.8 Figure 6.3.11 3) Transfer wires to new timer. 4) Withdraw old timer and insert new timer, securing with screws. 5) Replace knob. Revision 4/F3535 © Moffat Ltd, June 2004 -30-...

  • Page 31: Hold Thermostat

    Screws Figure 6.3.14 4) Withdraw old thermostat phial through rear of oven. 5) Insert new thermostat. 6) Re-assemble in reverse order. Revision 4/F3535 © Moffat Ltd, June 2004 -31-...

  • Page 32: Water Solenoid-Us/Can Only

    7) Secure new solenoid with screws, and and grime from the valve seat. re-assemble. Check that flow direction as 5) Reassemble valve assembly marked on valve is correct (flow into spray solenoid. nozzle). Revision 4/F3535 © Moffat Ltd, June 2004 -32-...

  • Page 33: Spray Nozzle-Us/Can Only

    Top Outer Element 66.5 ohms Bottom Element 27.3 ohms Figure 6.3.26 4) Replace and re-assemble in reverse order. 5) Ensure wire connections are correct to the voltage supply—60 Hz / 50 Hz (fig 6.3.23) Revision 4/F3535 © Moffat Ltd, June 2004 -33-...

  • Page 34: Outer Glass (E311)

    2) The inner glass seal can now be removed and trim panels. replaced. NOTE: When fitting new seal, ensure join is at top of door. Revision 4/F3535 © Moffat Ltd, June 2004 -34-...

  • Page 35: Door Seals

    2) The outer glass seal can now be removed and replaced. NOTE: When fitting new seal, ensure join is at Bottom Door Door Handle Screws top of door. (4 screws) Figure 6.3.33 Revision 4/F3535 © Moffat Ltd, June 2004 -35-...

  • Page 36: Adjustment / Calibration

    2) Remove thermostat knob by pulling it firmly away from control panel. 3) Open control panel (refer 6.2.1). Remove two screws on control panel holding thermostat. Screws Figure 6.4.2 4) The thermostat can now be removed. Revision 4/F3535 © Moffat Ltd, June 2004 -36-...

  • Page 37: Door Microswitch Adjustment

    Adjustment 8) Reassemble Grill/Broil switch onto Tool thermostat and fit assembly back onto control panel. 9) Turn on power and recheck oven thermostat calibration. Locknut 10) Repeat procedure if necessary. Figure 6.4.8 Revision 4/F3535 © Moffat Ltd, June 2004 -37-...

  • Page 38: Hold Temperature Adjustment

    2) Open control panel (refer 6.2.1). Loosen two screws on control panel holding 60 minute timer. Two Screws Figure 6.4.10 3) The timer can now be rotated as required to ensure that the buzzer sounds at the zero position. Revision 4/F3535 © Moffat Ltd, June 2004 -38-...

  • Page 39: Electrical Schematics

    7. ELECTRICAL CIRCUIT SCHEMATICS From Serial Number 232054 Revision 4/F3535 © Moffat Ltd, June 2004 -39-...
  • Page 40 To Serial Number 232053 Revision 4/F3535 © Moffat Ltd, June 2004 -40-...

  • Page 41: Electrical Wiring Diagrams

    8. ELECTRICAL WIRING DIAGRAMS From Serial Number 232054 50Hz 60Hz Dotted lines indicate wiring used only on models with water injection. Revision 4/F3535 © Moffat Ltd, June 2004 -41-...
  • Page 42 To Serial Number 232053 Dotted lines indicate wiring used only on models with water injection. Revision 4/F3535 © Moffat Ltd, June 2004 -42-...

  • Page 43: Spare Parts

    Handle (E311MS) 021465 Handle Bracket (E311) 023264 Door Outer Glass (E311) 023263 Door Inner Glass (E311), Door Glass (All)(E311MS) 011005 Door Catch (E311) 025501 Door Catch Plate (E311MS) 025502 Door Bush (E311MS) Revision 4/F3535 © Moffat Ltd, June 2004 -43-...
  • Page 44 RACKS 023255 Oven Side Rack LH 023256 Oven Side Rack RH 023254 Oven Rack 004874 Bottom Element Guard 004595 Fan Baffle Revision 4/F3535 © Moffat Ltd, June 2004 -44-...

  • Page 45: Accessories / Options

    10. ACCESSORIES OVEN RACKS (PART NO 23254) 100 MM (FOUR INCH) FOOT OPTION (PART NO 13048) 25 MM (ONE INCH) FOOT OPTION (PART NO 13908) A25 / A311 STAINLESS STEEL STAND Revision 4/F3535 © Moffat Ltd, June 2004 -45-...

  • Page 46: Parts Diagram

    11. PARTS DIAGRAMS 11.1 MAIN ASSEMBLY Revision 4/F3535 © Moffat Ltd, June 2004 -46-...
  • Page 47 TOP ELEMENT 208 - 220V 011604 TOP ELEMENT 230 - 240V 003074 BOTTOM ELEMENT 230 - 240V 003114 BOTTOM ELEMENT 208 - 220V 003219 ELEMENT SUPPORT 004993 ELEMENT COVER (E311 FROM S/N 260862; E311MS) Revision 4/F3535 © Moffat Ltd, June 2004 -47-...
  • Page 48 DOOR BUSH (E311 FROM S/N 260862; E311MS) (ALSO USED ON CONTROL PANEL PIVOT) 013610 DOOR BUSH (E311 UP TO S/N 260861) (ALSO USED ON CONTROL PANEL PIVOT) 023245 PIVOT SUPPORT - BOTTOM ASSEMBLY Revision 4/F3535 © Moffat Ltd, June 2004 -48-...

  • Page 49: Control Panel Assembly

    HOLD RELAY (FROM SERIAL NUMBER 232054) 022281 HOLD MINI-CONTACTOR (TO SERIAL NUMBER 232053) 021536 RELAY / CONTACTOR BRACKET 018789 BALL CATCH PLATE 011005 BALL CATCH & LOCKNUT 021442 TIMER MOUNTING PANEL 011794 BUZZER Revision 4/F3535 © Moffat Ltd, June 2004 -49-...
  • Page 50 021474 LIGHT SWITCH - MOMENTARY (NOT USA/CAN) (UP TO S/N 260861) 021474 STEAM SWITCH (USA/CAN ONLY) 020823 THERMOSTAT / TIMER KNOBS 020849 INDICATOR LIGHT 021476 ROAST ‘N’ HOLD SWITCH 021473 POWER SWITCH Revision 4/F3535 © Moffat Ltd, June 2004 -50-...
  • Page 51 CONTROL PANEL WA (BAKBAR / BLUE SEAL) 025503 CONTROL PANEL WA (MOFFAT) 025531 CONTROL PANEL OVERLAY (BAKBAR - °C) 025532 CONTROL PANEL OVERLAY (BLUE SEAL °C) 025530 CONTROL PANEL OVERLAY (MOFFAT - °F) 021473 POWER SWITCH 020849 INDICATOR LIGHT 020823 KNOB 021476 ‘ROAST N HOLD’...

  • Page 52: Glass Door Assembly

    HANDLE BRACKET (HANDLE ASSEMBLY 021469) 021468 HANDLE (HANDLE ASSEMBLY 021469) 090200 SILICON EXTRUSION - 1.90M 023263 DOOR INNER GLASS 004876 DOOR GLASS CLAMP ANGLE 090225 SILICON EXTRUSION - 0.96M 023264 DOOR OUTER GLASS Revision 4/F3535 © Moffat Ltd, June 2004 -52-...
  • Page 53 025498 GLASS CLAMP ANGLE 090200 INNER GLASS SEAL EXTRUSION 090201 OUTER GLASS SEAL EXTRUSION 090415 INSULATION 38mm 025504 DOOR OUTER PANEL WA 025502 PIVOT BUSH 025501 DOOR CATCH PLATE 025499 DOOR HANDLE Revision 4/F3535 © Moffat Ltd, June 2004 -53-...
  • Page 54 Mulgrave VIC 3170 Fax (03) 9518 3838 Spare Parts Department Free Call 1800 337 963 Fax (03) 9518 3895 NEW SOUTH WALES - MOFFAT PTY Unit 8/142 James Ruse Drive Rosehill NSW 2142 Spare Parts Free Call 1800 337 963...
  • Page 55 UNITED STATES OF AMERICA MOFFAT INC. 3765 Champion Blvd Winston-Salem Tel 1-800-551 8795 NC27115 Fax 336 661 9546 NATIONAL COVERAGE FOR SERVICE OR MAINTENANCE DIAL FREE CALL 1800 551 8795 (USA ONLY) Revision 4/F3535 © Moffat Ltd, June 2004 -55-...
  • Page 56 9) Locate long thin red wire and connect to terminal 2 on the power switch. 10) Close and fasten control panel taking care not to trap any wires. 11) Replace and fasten rear service panel. Mini-contactor Figure 2 Revision 4/F3535 © Moffat Ltd, June 2004 -56-...
  • Page 57 Circuit schematic (new wires shown in bold): Figure 3 Revision 4/F3535 © Moffat Ltd, June 2004 -57-...

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