Merrychef 502 Wartungshandbuch

Page 1 Mealstream Ovens 32Z3387 Issue 3 CAUTION MICROWAVE EMISSIONS DO NOT BECOME EXPOSED TO EMISSIONS FROM THE MICROWAVE GENERATOR OR PARTS CONDUCT

Page 10 Mealstream Ovens 32Z3387 Issue 3 Procedure A - Power Output Test in accordance with BS EN 60335-2-90 Annex AA This test is given in the B

Page 11 Mealstream Ovens 32Z3387 Issue 3 Procedure B - Simplified Power Output Test You will need: A thermometer capable of reading to ±0.1°C. A Pol

Page 12 Mealstream Ovens 32Z3387 Issue 3 Procedure E - High Voltage Rectifier Test You will need: A Megger or similar resistance meter using 500V d.

Page 13 Mealstream Ovens 32Z3387 Issue 3 Note A: see page 17 for parts 14 12 Left side 10 13 11 1A 2A 3A 6 1 2 3 4A 4 7 9 8 No Description EC 501/2/

Page 14 Mealstream Ovens 32Z3387 Issue 3 Right side 22 20 17 21 9 10 16 13 Note A: see page 17 for parts Principle components: No Description EC 5

Page 15 Mealstream Ovens 32Z3387 Issue 3 23 23 24 25 28 27 24 25 27 26 26 Top view 62 60 61 No Description EC 501/2/3 RD 501 23 Magnetron 30Z02

Page 16 Mealstream Ovens 32Z3387 Issue 3 Door & cavity roof Principle components: No Description EC 501/2/3 RD 501 67 Stirrer glass & lo

Page 17 Mealstream Ovens 32Z3387 Issue 3 Heater Element, Catalytic Converter & Cavity parts: 70 68a 77 No Description Part No. 68a Heater elem

Page 18 Mealstream Ovens 32Z3387 Issue 3 12 No. Description EC501/2/3 RD501 12 Door Hinge Assembly LH 11C0167 11C0167 16 Door Hinge Assembly

Page 19 Mealstream Ovens 32Z3387 Issue 3 Blue Brown Green/Yellow No Description Part No. 6 Mains Terminal Block 31Z0149 46 Cable Gland 31Z1070 4

Page 2 Mealstream Ovens 32Z3387 Issue 3 Table of Contents Safety Code...3 P

Page 20 Mealstream Ovens 32Z3387 Issue 3 1. Primary Interlock [ 11 , Bottom left-hand ] and Secondary Interlock [ 17 , Bottom right-hand ] Switches. O

Page 21 Mealstream Ovens 32Z3387 Issue 3 Electronic control panel assembly: EC501, EC502 & EC503 No Description Part No. 29 On/Off Switch 30Z0

Page 22 Mealstream Ovens 32Z3387 Issue 3 Manual control panel assembly: RD501 No Description Part No. 29 On /off switch 30Z0503 33 ac voltage conn

Page 23 Mealstream Ovens 32Z3387 Issue 3 Membrane panel circuit You will need: A Digital Multi-meter (D.M.M.) 1. Isolate the oven from the mains sup

Page 24 Mealstream Ovens 32Z3387 Issue 3 No Description EC501/2/3 RD501 1 Fuse holder 30Z0231 30Z0231 1a Fuse 10 amp 30Z0217 30Z0217 2 Fuse h

Page 25 Mealstream Ovens 32Z3387 Issue 3 Part number identification chart: No Description EC501/2/3 RD501 35 PCB Assembly ——— 11C0295 38 Red N

Page 26 Mealstream Ovens 32Z3387 Issue 3 Circuit diagram: EC501, EC502, EC503

Page 27 Mealstream Ovens 32Z3387 Issue 3 Circuit diagram: RD501, CTM3__CD2

Page 28 Mealstream Ovens 32Z3387 Issue 3 The MenuKey™ System automatically changes all the cooking programs on the numbered icon pads with the turn of

Page 29 Mealstream Ovens 32Z3387 Issue 3 For the oven to operate at peak efficiency, the cavity, door and the air filters must be kept clean. • ALWAY

Page 3 Mealstream Ovens 32Z3387 Issue 3 This manual is designed to assist engineers who have been on a recognised product familiarisation and training

Page 30 Mealstream Ovens 32Z3387 Issue 3 For the oven to operate at peak efficiency, the cavity, door and the air filters must be kept clean. • ALWAY

Page 31 Mealstream Ovens 32Z3387 Issue 3 APPENDIX 3: PCB Connection Points and key features, EC501, EC502 & EC503 11C0291 Issue 5 Relay PCB °C Li

Page 32 Mealstream Ovens 32Z3387 Issue 3 11C0377 Issue 2 Relay PCB °C Link Temperature Calibration Relay PCB Menukey APPENDIX 3: PCB Connection Points

Page 33 Mealstream Ovens 32Z3387 Issue 3 11C0212 Issue 11 Relay PCB Transformer 1 (LHS) Logic PCB Logic PCB Transformer 2 (RHS) Soft start common

Page 34 APPENDIX 4: Transformer Upgrade Should you need to change a transformer to any Mealstream 501 product, you should use the new 30Z1233 ( 50Hz

Page 35 we have improved the hot air motor assembly by enhancing the wave trap and balancing the impeller which is now fitted by a grub screw to a fla

Page 36 Step 9 Fit new wave trap Pt. No. 40C1201 to cavity. See figures 1(a) & 1(b) (Making sure it is centred in the hole) Ensure wave tra

Page 37 A) Fit motor assembly Pt. No. 11C0472 and secure finger tight with flange nuts & washers. B) Push the alignment tool (40C1211) onto the

Page 38 Adjusting alignment procedure Loosen x4 Allows wave trap to move to allow alignment tool to fit. Figure 6 Loosen x4 Allows board to be

Page 39 Step 11 With the alignment correct Reconnect motor wires at terminal block. See figure 9a & 9b Step 12 Fit new impeller to motor shaft.

Page 4 Mealstream Ovens 32Z3387 Issue 3 Power Requirements Refer to rating Plate Power Output: CTM3 CTM5 Microwave 100% Convection Combination Con

Page 40 If you are required to fit a new temperature sensor to a Mealstream 501 oven on a service call, you need to follow the procedure below to veri

Page 41 Page 1 of 2 1. Isolate oven from mains power supply. 2. Remove necessary covers to obtain access to the L/H inner side panel. 3. Remove the

Page 42 6. Push fit the new fuses Pt. No. 30Z1177 into the fuse holders. 7. Fit new label Pt. No. 31Z2092 over the existing label leaving the F5 and

Page 43 APPENDIX 8: Tim Hortons Ovens 1 This appendix list the parts and procedures for Tim Hortons Mealstream 501 models which are a vend type oven p

Page 44 The power output specification, 1425W on this model is established under IEC 705 standard method. This method is only workable in Laboratory

Page 45 No Description Part No. 1 Stirrer glass assy. ( inc. long seals ) 11C0319 2 Cavity roof seal (short) 790052 3 Door Handle Towel Rail

Page 46 No Description Part No. 12 Wire Rack 40C1011 13 Crumb Tray RBR290X02 14 Shelf Support Tim Hortons 10C0174 15 Shelf support fixing bo

Page 47 M M L K N O K Preheat L Cancel M Icon Cook Pads N MenuKey™ O Quarter, Half & Full Batch Load Tim Hortons control panel MENU KEY No Descr

Page 48 APPENDIX 9: 1. Monitor switch ( 14 ,Top left-hand Side ). The Monitor switch will produce a short circuit across the mains supply if the Prima

Page 49 WARNING Before starting this test procedure please make sure that the oven is disconnected from the electrical supply and that the oven power

Page 5 Mealstream Ovens 32Z3387 Issue 3 Installation Instructions for Mealstream 500 series Combination Ovens Power Supply Requirements The Mealstre

Page 50 Interlock Order SW1 (Monitor) CLOSED SW2 (Primary) OPEN SW3 (Secondary) OPEN Interlock Order SW1 (Monitor) OPEN SW2 (Primary) CLOSED SW

Page 51 Please Note DO NOT attempt to carry out the following procedure unless you have the following tools. Tools required for microwave leakage tes

Page 52 Test for microwave leakage at all points marked with a • Readings must be below 4mW/cm². If a level greater that 4mW/cm² is observed, thi

Page 34 Mealstream Ovens 32Z3387 Issue 3 Whilst every effort has been made to ensure that the information contained in this manual is accurate and com

Page 6 Mealstream Ovens 32Z3387 Issue 3 Models with electronic controls identify some of the most common problems by flashing an error message code in

Page 7 Mealstream Ovens 32Z3387 Issue 3 a On/Off SWITCH This is used to turn the oven On or Off. IT DOES NOT ISOLATE INTERNAL WIRING FROM THE MAINS

Page 8 Mealstream Ovens 32Z3387 Issue 3 a Stage LED's b Program & Time Display c Service Indicator d Air Filter Block Indicator e Convec

Page 9 Mealstream Ovens 32Z3387 Issue 3 a Power Neon ( Amber ) b Temperature Control c Power Control d Timer e Start Push button f Cook cycle