Merrychef Mealstream 400 Series Service Manual
  1. Manuals
  2. Brands
  3. Merrychef Manuals
  4. Oven
  5. Mealstream 400 Series
  6. Service manual
Merrychef Mealstream 400 Series Service Manual

Merrychef Mealstream 400 Series Service Manual

Hide thumbs Also See for Mealstream 400 Series:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Service Manual
Merrychef
Mealstream 400
SERIES
S E R V I C E
M A N U A L
Part No. 32Z3769 Issue No. 1
For all 400 Series models manufactured from February 2009
CAUTION MICROWAVE EMISSIONS
DO NOT BECOME EXPOSED TO EMISSIONS FROM THE MICROWAVE
GENERATOR OR PARTS CONDUCTING MICROWAVE ENERGY
400 Series Ovens 32Z3769 Issue 1
Page 1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Mealstream 400 Series and is the answer not in the manual?

Questions and answers

Related Manuals for Merrychef Mealstream 400 Series

Summary of Contents for Merrychef Mealstream 400 Series

  • Page 1 Merrychef Mealstream 400 SERIES S E R V I C E M A N U A L Part No. 32Z3769 Issue No. 1 For all 400 Series models manufactured from February 2009 CAUTION MICROWAVE EMISSIONS DO NOT BECOME EXPOSED TO EMISSIONS FROM THE MICROWAVE...

  • Page 2: Table Of Contents

    Ash Vale, Aldershot Hampshire GU12 5XA United Kingdom Tel: +44 (0)1252 371000 Fax: +44 (0)1252 371007 Internet address: http://www.merrychef.com E-mail: sales@merrychef.com or service@merrychef.com Merrychef and MenuKey™ are registered Trademarks of Merrychef Ltd. 400 Series Ovens 32Z3769 Issue 1 Page 2...

  • Page 3: Safety Code

    This manual is designed to assist engineers who have been on a recognised product familiarisation and training course run by Merrychef Limited. It has been prepared to offer technical guidance for the Merrychef Mealstream 400 range of Combination Microwave Ovens.

  • Page 4: Product Specifications

    Product specifications: Mealstream 401 & 403 models ELECTRONIC CONTROLS: ( EC401 & EC403 models ) Model N : 1003 + Voltage + Frequency + Current + Controls + Phase + MenuKey + Catalytic converter For example: 100345XE52MK 230-240V, 50Hz, 30A, Series 5 Controls, Twin Phase, MenuKey Frequency MenuKey Catalytic...

  • Page 5: Installation Instructions

    Installation instructions Positioning the Oven In order to maintain adequate ventilation for air intake and exhaust, and to allow access for cleaning the air filters, you must allow a minimum of 50mm(2 inches) clearance at the sides and rear of the oven, and at least 150mm above. Air intake temperature should not exceed 35°C (95°F).

  • Page 6: Electrical Installation

    Electrical installation: WARNING: This appliance must be earthed. Failure to do so may result in electric shock and death All models ( 30A ) must be connected to a separate electrical supply rated at WARNING 30 Amps by a qualified and approved electrician. A suitable 30 amp rated isolating switch with a 3mm contact gap on both poles should be fitted for each oven installed.

  • Page 7: Error Codes And Diagnostics

    Error codes and diagnostics Electronic Control Models The control panel will identify some of the most common problems by flashing an error message code in the time display window. Error Message Possible Cause Service Door not fully shut Close door fully. Possible electrical fault Check Microswitch Door Circuit Check Microswitch Connection to PCB...

  • Page 8: Main Features

    Main features rear view of Oven b VENTS h TURNTABLE TRAY The vitreous enamelled turntable tray fits onto the turntable disc in the bottom of the oven cavity, c TRAY HANDLE RESTS and rotates during cooking to ensure an even There is one on each side of the oven for distribution of microwave energy so that the food convenient storage of the tray handle.

  • Page 9: Electronic Controls

    Electronic controls: Stage LED's Service Indicator Air Filter Block Indicator Program Display Temperature Set Pads Time / Program Number Pads Cancel/ Callback Pad Program Pad Convection Pad Microwave power Pads On/Off switch m MenuKey socket 400 Series Ovens 32Z3769 Issue 1 Page 9...

  • Page 10: Power Output Testing To En 60335-2-90

    Procedure B - Simplified Power Output Test for Field Service Use You will need: Procedure A - Power Output Test In accordance with BS EN 60335-2-90 is not used in the field please Engineers Procedure B. A thermometer capable of reading to ±0.1°C. A Polypropylene tray approximately 200 mm x 200 mm.

  • Page 11: High Voltage Capacitor Test

    Procedure D - High Voltage Capacitor Test A Digital Multi-meter (D.M.M.) You will need: A Megger or similar resistance meter using 500V d.c. WARNING: High voltages and large currents are present at the High Voltage Capacitor. It is very dangerous to work near this part when the oven is on. NEVER make any voltage measurements at the High Voltage circuits, including the magnetron filament .

  • Page 12: Door Interlock Operation

    Door interlock operation The door on the oven is monitored by five microswitches. Three of these are used in the conventional “Primary, Secondary and Monitor” switch arrangement shown below, while the fourth is a low-voltage switch linked directly to the control circuitry and the fifth switches the power to the convection motor.The switches operate as follows: Door open position SW2 Primary...
  • Page 13 Procedure for Door Interlock and test: WARNING Before adjusting the microswitch assemblies ensure that the oven has been isolated from the electrical supply and discharge the HT Capacitors. Please note the terminals on the microswitches remain live when the oven is switched off, so complete isolation is essential Tools Required: Door Spacer Kit P10H0129, Multimeter The purpose of this procedure is to set the interlock so that when the...
  • Page 14 Remove the 3mm spacers and open and close the door 2 or 3 times to allow the parts to work together. Set a Multimeter Resistance [ Ω ] and connect the meter to the microswitch terminals 37 & Replace the 3mm spacers on the door and over the corners of the seal as before.

  • Page 15: Casework

    Principal components: casework Handle Hanger RCK6319 Side Panel (L/H) MC3134 Ferrite RMC6773 Front Lower Panel MC3047 Upper Trim MC3120MC Lower Trim MC3122 Top Plate RMC6759EMC PCB Retainer 40H0084 Rear Panel MC3769MC Side Trim LH MC3789MC Air Filter MC3155 Side Trim RH MC3121 Side Panel (R/H) MC3145...

  • Page 16: Door Mechanism

    Door mechanism Door Stay (R/H) MC3040 Hinge Body MC30121X02 Hook (A) RMC66171 Hook (B) RMC66172 Door Spring (B) MC3068X01 Hinge Body (L/H) MC30122X01 Door Spring (A) MC3067 Door Stay (L/H) MC3046 Solid Door Assy Silver MC3230MCX02 400 Series Ovens 32Z3769 Issue 1 Page 16...

  • Page 17: Oven Cavity Components & Hot Air System

    Oven cavity components and hot air system Catalytic Converter 136A Turntable Disc RMC7340X01 Motor Bracket RMC7307X01 Convection Motor MC3730MOD Baffle Plate Bolt CP30326 Catalytic Converter 31Z1245 Baffle Plate MC3018 136A Vent Plate 40H0236 Fan Fixing Cap RCK7617 Convection Fan MC3111 Thumb nut 31Z4031 Oven Body...

  • Page 18: Oven Door Assembly

    Oven door assembly Solid Door Assy. MC3230MCX02 Door Handle Silver RBR1285048 Door Cover Outer 40H0080 Inner Panel 40H0081 Door Reinforcement RMC70722 Door Frame (B) MC3055 Insulation Wrap 32Z0001 Door Base Silver MC3031X05 Door Cover MC3064X01 Plate - Door Switch RHS MC3056 Plate - Door Switch LHS MC0562MC...

  • Page 19: Door Interlock Rhs, Magnetron & Stirrer Motor

    Door Interlock RHS, Magnetron & Stirrer Motor Foam Tape 31Z0042 54 Door Switch Bracket 40H0023 Magnetron 30Z1349 55 Microswitch SW4 30Z0240 Magnetron Thermal trip 30Z0088 56 Microswitch SW5 30Z0240 129 Turntable Motor 11H0110 59 Microswitch Insulator 31Z0115 60 Outlet Duct MC3037 400 Series Ovens 32Z3769 Issue 1 Page 19...

  • Page 20: Principal Components Lhs & Rear View

    Principal Components LHS & Rear view: Microswitches Secondary Microswitch SW3 30Z0240 117 Axial fan 11H0075 138 Primary Microswitch SW2 30Z1396 139 Monitor Microswitch SW1 30Z1395 Hot Air Motor MC3730MOD Microswitch SW4 30Z0240 Note: Microswitch SW5 30Z0240 1. The 270Ω Resistor is required to drop the supply voltage to the Thermal cut-out switch 30Z1024...

  • Page 21: Principal Components Rhs 1: Models _Ee5

    Principal Components RHS 1 : Models _ EE5, _ XE5, [CD2] Outlet Duct MC3037 Bridge Rectifier 341520 No. 8 Screw 31Z3107 HT Capacitor 0.75uF 2500V 30Z1329 76A Capacitor Clip 30Z1261 Transformer 208-240 50Hz 30Z1233 117 Axial Fan 11H0075 128 Cooling Fan 240V 50Hz 11H0091 400 Series Ovens 32Z3769 Issue 1 Page 21...

  • Page 22: Principal Components Rhs 2: Models _Ee5

    Principle components RHS 2: _ EE5, _ XE5 HV Diode Assembly 11H0010 HT Capacitor 0.75uF 2500V 30Z1329 HT Transformer Top Bracket MC3127 HV Lead Assembly, Ferrite 11H0025 Transformer 208-240V 50Hz 30Z1233 HT Transformer Bottom Bracket 40H0070 Capacitor Band RMC7215 Filter Bracket 40H0065 HT Transformer Support Bracket MC3024...

  • Page 23: Principal Components Rhs 3: Models

    Principle components RHS 3: _ XX5, _XX52 HT Capacitor 0.75uF 2500V 30Z1329 76A Capacitor Clip 30Z1261 Transformer 208-240 60Hz 30Z1233 117 Axial Fan 11H0075 128 Cooling Fan 208V 50Hz 30Z1128 130 Diode Board 11H0058 140 Potentiometer 11H0058 Note: 1. The Potentiometer adjusts the cavity set point temperature 400 Series Ovens 32Z3769 Issue 1 Page 23...

  • Page 24: Input Wiring, Filters And Fuses 1

    Input wiring, filters and fuses 1 Model 1003__XE5, XD5 Model 1003__EE5, CD2 Green / Yellow Green / Yellow Blue Blue Brown 112a Model: Cable Assembly Mains Input Block 31Z0328 _ EE, _CD2 10H0012 Cable Gland 31Z1070 _XE5 [Single phase] 10H0011 112A Cable Gland Nut 31Z1082 Europe...

  • Page 25: Input Wiring, Filters And Fuses 2

    Input wiring, filters and fuses 2 Model RMC1003__XX5, XX52 Green / Yellow Green / Yellow Blue Blue Brown 112a Model: Cable Assembly Mains Input Block 31Z0328 _ XX5 [Single phase] 10H0046 Cable Gland 31Z1070 _XX52 [Twin phase] 10H0039 112A Cable Gland Nut 31Z1082 Europe Input Cable Assembly...

  • Page 26: Control Panel 1: Electronic Controls

    Control Panel 1: Electronic controls assembly Membrane Assy See table Model Membrane Assy On/Off Switch 30Z0503 EE5, XE5, XX5 11H0060 Logic Assy. See table XX5 Starbucks 11H0024 Support Shield 40H0075 EE5, XE5, XX5 11H0067 100 M3 x 5 Screw 31Z3106 Menukey 101 No.

  • Page 27: Control Panel 2: Membrane Panel Circuit

    Control Panel 2: Membrane panel circuit You will need: A Digital Multi-meter (D.M.M.) 1. Isolate the oven from the mains supply. 2. Remove the Logic Assembly from the Control Panel Housing. 3. Unplug the membrane “tail” from the Logic PCB Assy. 4.

  • Page 28: Control Panel 3: Manual Control Assembly

    Control Panel 3: Manual control assembly 124A 124B 124C 124D 105A PCB Retainer LH 40H0084 On/Off Switch 30Z0503 105A Side Trim RH MC31212 M5 Flat Washer 31Z5004 PCB Assembly 11H0027 Timer 30Z0991 Amber Neon 316031 124A Control Knob Black 313020 124B Control Knob Skirt Red 313160 124B Control Knob Skirt Blue...

  • Page 29: Part No. Identification

    Part number identification chart 1 SIDE PANEL (L/H) MC3134 INNER INSULATION PANEL 40H0081 FERRITE RMC6773 DOOR REINFORCEMENT RMC70722 UPPER TRIM MC3120MC DOOR FRAME (B) MC3055 TOP PLATE RMC6759EMC INSULATION WRAP 32Z0001 REAR PANEL MC3769MC DOOR BASE SILVER MC3031X05 AIR FILTER MC3155 DOOR COVER MC3064X01...
  • Page 30 Part number identification chart 2 M’WAVE MAINS FILTER 16A 30Z1340 CD2 Models MAINS FILTER 16A FUSE HOLDER 30Z1178 PCB Retainer RH 40H0084 FUSE 20A 30Z1177 PCB Assembly 11H0027 TRANSFORMER 208-240V 50Hz 30Z1233 Timer 30Z0991 MEMBRANE ASSEMBLY See table Amber Neon 316031 PCB RETAINER 40H0084...

  • Page 31: Appendix 1 Menukey Download Procedure

    APPENDIX 1 : MenuKey ™ Download Procedure The MenuKey System automatically changes all the cooking programs on the numbered icon pads with the turn of a key. To change the menus on the oven: Ensure the power switch is off. Lift the MenuKey cover in the front panel of the oven and put the key in the keyhole...

  • Page 32: Appendix 2 Cleaning Procedure

    As with all electrical appliances, it is wise to have the electrical connections inspected periodically. Merrychef recommends the use of approved Merrychef Oven Cleaner and Merrychef Oven Cleaning the air filter oven cavity, and door Protector.

  • Page 33: Recommended Parts List (Spares)

    RECOMMENDED PARTS LIST: 240V 50Hz Models _EE5, _XE5, CD2, 400 Series Ovens 32Z3769 Issue 1 Page 33...
  • Page 34 RECOMMENDED PARTS LIST : 240V 50Hz Models _XX5, XX52 400 Series Ovens 32Z3769 Issue 1 Page 34...
  • Page 35 Issue 10 Circuit Diagram: Models _ EE5 400 Series Ovens 32Z3769 Issue 1 Page 35...
  • Page 36 Issue 11 Circuit Diagram: Models _ XE5 400 Series Ovens 32Z3769 Issue 1 Page 36...
  • Page 37 Issue 06 Circuit Diagram: Models CD2 400 Series Ovens 32Z3769 Issue 1 Page 37...
  • Page 38 Issue 05 Circuit Diagram: Models _ XX5, _XX52 400 Series Ovens 32Z3769 Issue 1 Page 38...

Table of Contents