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Merrychef
Microcook HD
Microcook TA
S E R V I C E
M A N U A L
Part No. 32Z3385 Issue No. 5
For all Microcook HD & TA models manufactured from January 2001
CAUTION MICROWAVE EMISSIONS
DO NOT BECOME EXPOSED TO EMISSIONS FROM THE MICROWAVE
GENERATOR OR PARTS CONDUCTING MICROWAVE ENERGY
Microcook HD Ovens 32Z3385 Issue 5
Page 1
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Summary of Contents for Merrychef HD
- Page 1 S E R V I C E M A N U A L Part No. 32Z3385 Issue No. 5 For all Microcook HD & TA models manufactured from January 2001 CAUTION MICROWAVE EMISSIONS DO NOT BECOME EXPOSED TO EMISSIONS FROM THE MICROWAVE...
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Page 2: Table Of Contents
Manual Corrections and Modifications ........43 Merrychef Limited, Station Road West, 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 Microcook HD Ovens 32Z3385 Issue 5 Page 2... -
Page 3: Safety Code
SAFETY CODE This manual is designed to assist engineers who have successfully completed a Merrychef Service training course. It has been prepared to offer technical guidance for the Merrychef Microcook HD and Microcook TA Commercial Microwave Ovens. Please remember that it is wiser not to attempt a service task if you are unsure of being able to complete it competently, quickly, and above all safely. -
Page 4: Microcook Hd Specification Sheet
Cavity 304 Stainless Steel Casework 304 Stainless Steel Coated Aluminium extrusions Settings Microwave 100%,50%, Defrost Timer Up to 10 minutes Up to 3 cooking stages of up to 10 minutes each Program Microcook HD Ovens 32Z3385 Issue 5 Page 4... -
Page 5: Microcook Ta Specification Sheet
TA1925 100%, heat only, turbo Timer Up to 9 minutes 59 seconds Up to 3 Programmed cooking stages of up to 9 minutes 59 seconds each ( total 29 minutes 57 seconds) Microcook HD Ovens 32Z3385 Issue 5 Page 5... -
Page 6: Installation Instructions
Installation instructions Power Supply Requirements The Microcook HD & Microcook TA ovens should be connected to a suitable electricity supply, which can cope with the switching-on surge that occurs with certain types of catering equipment, such as microwaves. Because of this requirement, we strongly recommend that a separate, suitably rated supply is installed for the oven. -
Page 7: Error Codes & Diagnostics
(Intermittent) Incorrect time set. Check correct time is set ( Intermittent ) ie : 1.00 minute Not 60 seconds KFC HD Models (with Fibre Optic Magnetron Detection) Display Fault (frequency) Recommended Action LH Magnetron Failure Check Power supply Replace magnetron(s) -
Page 8: Power Output Test Procedure A
°C; is the initial temperature of the water, in °C; is the final temperature of the water, in °C; is the heating time in seconds, excluding the magnetron filament heat-up time. Microcook HD Ovens 32Z3385 Issue 5 Page 8... -
Page 9: Simplified Power Output Test B
Primary winding and chassis Pass if over 10 MΩ Filament winding and chassis Pass if over 10 MΩ One end of the High Voltage winding is connected to the chassis, so this is not tested. Microcook HD Ovens 32Z3385 Issue 5 Page 9... -
Page 10: Transformer / Capacitor Test Procedure C & D
3. Remove all connections from the Magnetron. 4. A continuity check across the Filament terminals should be 1ohm or less 5. A continuity check between each filament terminal metal outer should read open. Microcook HD Ovens 32Z3385 Issue 5 Page 10... -
Page 11: Rectifier Test Procedure E
2. Primary Interlock Switch [ Bottom Left ]. The Primary switch is then closed. 3. Secondary Interlock Switch [ Bottom Right ]. The Secondary Switch then closes. When the door is opened, the switches operate in the reverse order. Microcook HD Ovens 32Z3385 Issue 5 Page 11... -
Page 12: Oven Main Features
Program Pad On/Off Switch Program Display Program Selection / Time Set Pads Power Selection Pads HD models:100%, 50% & de-frost TA models:100%, hot-air & turbo Time Display Cancel / Callback Pad Door Microcook HD Ovens 32Z3385 Issue 5 Page 12... -
Page 13: Rear Cover Assembly
31Z5012 31Z5012 31Z5012 31Z5012 31Z5012 Installation Label 31Z2071 31Z2071 31Z2071 31Z2071 31Z2071 31Z2071 Self Adhesive Foam Tape —– 31Z0158 31Z0158 31Z0158 31Z0158 31Z0158 Service History Label 31Z2056 31Z2056 31Z2056 31Z2056 31Z2056 31Z2056 Microcook HD Ovens 32Z3385 Issue 5 Page 13... -
Page 14: Door Assembly 500Mm Die Cast
22 Door Seal Horizontal 40M0927 40M0927 40M0927 40M0927 40M0861 40M0927 23 Door Seal Vertical 40M0926 40M0926 40M0926 40M0926 2070499 40M0926 24 Loctite Gel 32Z5005 32Z5005 32Z5005 32Z5005 32Z5005 32Z5005 *Note: KFC see Appendix 1 Microcook HD Ovens 32Z3385 Issue 5 Page 14... -
Page 15: Door Assembly 650Mm
35 M5 Flat Washer —– —– —– —– 31Z5008 —– 36 M5 Shakeproof Washer —– —– —– —– 31Z5012 —– 37 M5 x 16 Pan Head Screw —– —– —– —– 31Z3022 —– Microcook HD Ovens 32Z3385 Issue 5 Page 15... -
Page 16: Control Panel Assembly
Switch Panel Assy Blue 11M0387 11M0387 11M0388 11M0386 11M0395 Logic Board ——— 11M0107 11M0107 11M0107 11M0359 11M0359 PCB relay ——— 11M0285 11M0427 11M0427 11M0430 11M0430 Fan Control PCB ——— ——— ——— ——— 11M0261 11M0261 Microcook HD Ovens 32Z3385 Issue 5 Page 16... -
Page 17: Component Layout Hd1025
30Z0941 30Z0941 30Z0941 30Z0941 30Z0941 72 Axial Fan Bracket —– 40M0541 40M0541 40M0541 40M0541 40M0541 73 Mains Filter 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 74 Lampshield 40M0492 40M0492 40M0492 40M0492 40M0492 40M0872 Microcook HD Ovens 32Z3385 Issue 5 Page 17... -
Page 18: Component Layout Hd1425 / 1725
30Z0941 30Z0941 30Z0941 30Z0941 30Z0941 72 Axial Fan Bracket —– 40M0541 40M0541 40M0541 40M0541 40M0541 73 Mains Filter 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 74 Lampshield 40M0492 40M0492 40M0492 40M0492 40M0492 40M0872 Microcook HD Ovens 32Z3385 Issue 5 Page 18... -
Page 19: Component Layout Hd1925
72 Axial Fan Bracket —– 40M0541 40M0541 40M0541 40M0541 40M0541 73 Mains Filter 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 74 Lampshield 40M0492 40M0492 40M0492 40M0492 40M0492 40M0872 Microcook HD Ovens 32Z3385 Issue 5 Page 19 *Note: KFC see Appendix 1... -
Page 20: Component Layout Hd2025
30Z0941 30Z0941 30Z0941 30Z0941 30Z0941 72 Axial Fan Bracket —– 40M0541 40M0541 40M0541 40M0541 40M0541 73 Mains Filter 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 74 Lampshield 40M0492 40M0492 40M0492 40M0492 40M0492 40M0872 Microcook HD Ovens 32Z3385 Issue 5 Page 20... -
Page 21: Component Layout Ta 1725, Ta 1925
72 Axial Fan Bracket —– 40M0541 40M0541 40M0541 40M0541 40M0541 73 Mains Filter 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 74 Lampshield 40M0492 40M0492 40M0492 40M0492 40M0492 40M0872 Microcook HD Ovens 32Z3385 Issue 5 * also requires clip anchor 40M0888 Page 21... -
Page 22: Cavity Components
40M0563 40M0563 40M0563 40M0563 40M0563 40M0877 80 Stirrer Blade Assembly 11M0140 11M0140 11M0140 11M0140 11M0140 11M0140 81 Box Launch Seal 40M0832 40M0832 40M0832 40M0832 40M0832 40M0832 82 Tuning Stub 40M0508 40M0508 40M0508 40M0508 40M0539 40M0508 Microcook HD Ovens 32Z3385 Issue 5 Page 22... -
Page 23: Door Mechanism Right Side
31Z0115 31Z0115 98 Microswitch Fixing Screw 31Z3027 31Z3027 31Z3027 31Z3027 31Z3027 31Z3027 99 Microswitch Fixing Washer 31Z5018 31Z5018 31Z5018 31Z5018 31Z5018 31Z5018 100 Microswitch Fixing Nut 31Z4000 31Z4000 31Z4000 31Z4000 31Z4000 31Z4000 Microcook HD Ovens 32Z3385 Issue 5 Page 23... -
Page 24: Door Mechanism Left Side
31Z0115 98 Microswitch Fixing Screw 31Z3027 31Z3027 31Z3027 31Z3027 31Z3027 31Z3027 99 Microswitch Fixing Washer (Flat) 31Z5018 31Z5018 31Z5018 31Z5018 31Z5018 31Z5018 100 Microswitch Fixing Nut 31Z4000 31Z4000 31Z4000 31Z4000 31Z4000 31Z4000 Microcook HD Ovens 32Z3385 Issue 5 Page 24... -
Page 25: Hot Air Motor Assembly
11M0140 11M0140 11M0140 11M0140 11M0140 11M0140 82 Tuning Stub 40M0508 40M0508 40M0508 40M0508 40M0539 40M0508 83 Hot Air Motor Assembly —– —– —– —– —– 11M0344 84 Cooling Sleeve —– —– —– —– —– 40M0878 Microcook HD Ovens 32Z3385 Issue 5 Page 25... -
Page 26: Microcook Ta Fan Control Pcb And Heater Setup
“GND” and the red lead to the pin marked “T+”. A reading in millivolts of ten times the nozzle temperature should be obtained: If the nozzle is at 22.0 C, then the reading should be 220mV If the nozzle is at 19.2 C, then the reading should be 192mV Microcook HD Ovens 32Z3385 Issue 5 Page 26... - Page 27 6. When the time display shows 0:10 the heater element should switch off, which should result in a change of pitch in the noise from the fan. This completes the operational test. Microcook HD Ovens 32Z3385 Issue 5 Page 27...
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Page 28: Input Wiring Details
68c Fuse Cover 20Z1080 20Z1080 20Z1080 20Z1080 20Z1080 20Z1080 73 Mains Filter 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 30Z0997 101 Sleeve 89W6010 89W6010 89W6010 89W6010 89W6010 89W6010 102 Clip 31Z7052 31Z7052 31Z7052 31Z7052 31Z7052 31Z7052 Microcook HD Ovens 32Z3385 Issue 5 Page 28... -
Page 29: Part Number Identification List
40M0614 40M0614 40M0614 40M0614 40M0614 40M0614 56 Capacitor Clip 40H0046 40M0600 40M0600 40M0600 40M0600 40M0889 Capacitor Clip Anchor —– —– —– —– —– 40M0888 57 Capacitor L/H See Appendix 2 58 Capacitor R/H Microcook HD Ovens 32Z3385 Issue 5 Page 29... - Page 30 31Z5018 31Z5018 31Z5018 31Z5018 31Z5018 31Z5018 100 Microswitch Fixing Nut 31Z4000 31Z4000 31Z4000 31Z4000 31Z4000 31Z4000 101 Sleeve 89W6010 89W6010 89W6010 89W6010 89W6010 89W6010 102 Clip 31Z7052 31Z7052 31Z7052 31Z7052 31Z7052 31Z7052 Microcook HD Ovens 32Z3385 Issue 5 Page 30...
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Page 31: Wiring Diagrams
Circuit diagram: Microcook HD 1025, HD1425, HD1725, HD1925, HD2025 Microcook HD Ovens 32Z3385 Issue 5 Page 31... - Page 32 Circuit diagram: Turboaire II XE (Single leaded) Part 1 Microcook HD Ovens 32Z3385 Issue 5 Page 32...
- Page 33 Circuit Diagram: Turboaire II XE (Single leaded) Part 2 Microcook HD Ovens 32Z3385 Issue 5 Page 33...
- Page 34 Circuit Diagram: Turboaire II XE (Twin leaded) Part 1 Microcook HD Ovens 32Z3385 Issue 5 Page 34...
- Page 35 Circuit Diagram: Turboaire II XE (Twin leaded) Part 2 Microcook HD Ovens 32Z3385 Issue 5 Page 35...
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Page 36: Appendix 1 Kfc Components
39 Logic Board 11M0416 49 Relay Board ( 2 Buzzers ) 11M0285 103 Menukey Assembly 10C0148 104 Top Panel Extrusion 40M1062 105 MenuKey connection lead 11H0064 106 Diode PCB 11M0364 Top View Microcook HD Ovens 32Z3385 Issue 5 Page 36... -
Page 37: Appendix 2 Capacitors And Magnetrons
1.25µF 30Z1078 ( 1 only) HD 1425 0.88µF 30Z1330 1.0µF 30Z1331 HD 1725 2x 1.1µF 30Z1242 HD 1925 2x 1.25µF 30Z1078 HD 2025 2x 1.25µF 30Z1078 TA 1725 2x 1.1µF 30Z1242 TA 1925 2x 1.25µF 30Z1078 Microcook HD Ovens 32Z3385 Issue 5 Page 37... -
Page 38: Appendix 3 Cleaning
Place a container of water (1.5 litres) into the centre of the oven cavity. Set timer to 9 minutes. Set microwave power to 100%. At end of steam cycle wipe out cavity with a clean cloth. Microcook HD Ovens 32Z3385 Issue 5 Page 38... -
Page 39: Appendix 4 Menukey Download
1. The new key code 2. 00:00 (oven ready to use) If the download is not successful the key number will not be displayed and if the program pads are pressed an E3 error will display. Microcook HD Ovens 32Z3385 Issue 5 Page 39... -
Page 40: Appendix 5 Fitting 20A Anti Surge Fuses
3. Strip back the GSS sleeving over the mains cable approx. 50mm and cable tie back into location. 4. Strip back the jacket of the mains cable, again approx. 50mm. (B) Microcook HD Ovens 32Z3385 Issue 5 Page 40... - Page 41 Turn off the power and isolate the oven from the mains power supply, then fit the cover. Please ensure that you record TB067 completed on your (SVR). Microcook HD Ovens 32Z3385 Issue 5 Page 41...
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Page 42: Appendix 6 Logic Board And Magnetron Failure Detect
07 - 30 prog Jumper always ON 08 - Multi Jumper always ON 09 - Cook Jumper always OFF 10 - Man Jumper OFF = Automatic door Jumper ON = Manual door Microcook HD Ovens 32Z3385 Issue 5 Page 42... -
Page 43: Manual Corrections And Modifications
Name Address Page on which error occurs (if applicable) - Microcook HD & TA Description of error Suggestion for improvement to manual Please return this form to: Service Dept.
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