turbofan E20D Series Service Manual Download

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S e r v i c e M a n u a l

E 2 0 D S e r i e s

( D i g i t a l O p e r a t i o n )

20D

SERIES

Turbofan E20D Series Convection Ovens

Amendment 1

Summary of Contents for E20D Series

Page 1: ...Service Manual E20D Series Digital Operation 20DSERIES Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 ...

Page 2: ... 61 03 9518 3833 Service tel 1800 622 216 Spares tel 1800 337 963 Customer Service tel 1800 335 315 fax 1800 350 281 CANADA Serve Canada Web www servecanada com E Mail info servecanada com Sales tel 800 551 8795 Toll Free Service tel 800 263 1455 Toll Free NEW ZEALAND Moffat Limited Web www moffat co nz E Mail sales moffat co nz Main Office tel 0800 663328 UNITED KINGDOM Blue Seal Web www blue sea...

Page 3: ...Specifica ons Posi oning and Levelling of Oven Ini al Start Up Opera on 8 Opera on Guide Manual Mode Steam Mode Changing Operator Se ngs Operator Se ngs Table Fault Finding 11 Opera onal Faults Element Resistance and Current Table Service Procedures 13 Replacement Adjustment and Calibra on Service Parameters 29 Viewing Changing Service Parameters Table of Service Parameters Electrical Schema cs 31...

Page 4: ...swer your question Should you contact your TURBOFAN dealer on any matter concerning this oven please have the information provided opposite readily available Caution Warning Model Number Serial Number Dealer Service Provider Date Installed Date Purchased This manual must be kept by the owner for future reference A record of the Date of Purchase Date of Installation and Serial Number of the oven sh...

Page 5: ...Specifications 3 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E23D3 ...

Page 6: ...Specifications 4 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E27D2 E27D3 ...

Page 7: ...3 x US Pan 85mm 3 1 3 E27D2 208V 1P N E 50 60HZ 2 7kW 220V 1P N E 50 60HZ 3 0kW 230 240V 1P N E 50 60HZ 3 0kW E27D2 2 x EN 600 x 400mm Tray 2 x US Full Pan 110mm 4 1 3 E27D3 208V 1P N E 50 60HZ 4 2kW 220V 1P N E 50 60HZ 4 7kW 230 240V 1P N E 50 60HZ 4 7kW E27D3 3 x EN 600 x 400mm Tray 3 x US Full Pan 85mm 3 1 3 E28D4 208V 1P N E 50 60HZ 5 4kW 220V 1P N E 50 60HZ 6 0kW 230 240V 1P N E 50 60HZ 6 0kW...

Page 8: ...are easily reachable for loading and unloading Clearances To ensure correct ventilation for the motor and controls the following minimum installation clearances are to be adhered to Top 200mm 8 Rear 25mm 1 Left hand side 25mm 1 Right hand side 25mm 1 CLEARANCE FROM SOURCE OF HEAT A minimum distance of 300mm 12 from the appliance sides is required Stand Mounted Ovens For ovens that are to be mounte...

Page 9: ...with this appliance for details on how to correctly operate and shutdown the oven Electrical Connection Each oven should be connected to an adequately protected power supply and an isolation switch mounted adjacent to but not behind the oven and must be readily accessible to the operator This switch must be clearly marked and readily accessible in case of fire Check the electricity supply is corre...

Page 10: ...tion Program Key and LED Press Program Key to access Program Mode LED is illuminated whilst in Program Mode Temp Key and LED In Manual Mode Press Temp Key to display oven actual temperature LED flashes when showing actual temp In Program Mode Press Temp Key to display oven set and actual temperature LED flashes when showing set and actual temp LED remains On when heating element is On Heating Indi...

Page 11: ...key for three seconds and choosing level St1 to St5 In Program Mode Each stage of a program can be set to steam level St0 to St5 Steam level St0 means that there is no automatic steaming in the program stage Steam can be manually injected at any time during program cooking Steam levels St1 to St5 means the program stage starts with a sequence of steam pulses Steam can be manually injected at any t...

Page 12: ...e Right Display will stop flashing See below for a list of Operator Settings available 4 EXITING THE OPERATOR SETTING MODE Press On Off key to exit the Operator Settings Mode and to return to Stand By Mode Operator Settings Table Setting Description Value Range Default Value Oven Pre Heat Automatic Pre Heat Temperature on oven start up 60 260 C 140 500 F 150ºC 325ºF Light Auto Off Setting Time 0 L...

Page 13: ...roswitch Check continuity through microswitch if faulty replace Err 001 on displays Oven Temperature Probe faulty Replace oven temperature probe Err 003 on displays Wiring faulty Missing loop wire on controller between terminals COM and ID2 Check plug connections to controller are secure and not damaged Oven heats up but fan does not operate Capacitor faulty Fan Motor faulty Controller faulty Chec...

Page 14: ...temperature selected Oven or racks not level Insufficient air space around trays or baking tins Oven overloaded with product Opening oven door un necessarily Oven door seal damaged or faulty Oven vent restricted Fan motor not operating in both directions Controller faulty Capacitor faulty Fan Motor faulty Select a lower temperature Check oven and racks and level Ensure oven racks are spaced to all...

Page 15: ...s 15 5 1 3 Capacitor s Heating Relay Transformer Fuse E27D3 E28D4 Only Fuse Holder E27D3 E28D4 Only 16 5 1 4 Overtemp Thermostat Temperature Probe 17 5 1 5 Fan Fan Motor 19 5 1 6 Element s 21 5 1 7 Water Solenoid Spray Nozzle 22 5 1 8 Door Removal Door Hinges Door Inner Glass 24 5 1 9 Door Microswitch 25 5 1 10 Oven Light Fixture 26 5 2 Adjustment and Calibration 5 2 1 Door Microswitch 28 5 2 2 Te...

Page 16: ... access panel and remove panel Screws at bottom of panel only require just loosening as panel is slotted to ease re fitting To remove the Controller Front Display Board 1 Using pliers carefully compress the 4 plastic fasteners securing the cover over the front display board and remove the cover 2 Undo securing 8 nuts and remove front display board 3 At the rear of the oven disconnect ribbon cable ...

Page 17: ...lectrical panel 4 Re connect plugs to rear control board noting position of connectors when re fitting 5 1 2 Time Temp Encoders 1 Remove 2 screws on underside of control panel and remove control panel 2 Using pliers carefully compress the 4 plastic fasteners securing the cover over the front display board and remove the cover 3 Pull off the Timer and Temp control knobs from the control panel These...

Page 18: ...relay to the rear of the oven 3 Remove the heating relay from the oven 4 Refit the replacement heating relay in reverse order Transformer 1 Disconnect all electrical connections to the transformer 2 Undo the 2 screws securing the transformer to rear of oven 3 Remove the transformer 4 Refit the replacement transformer in reverse order Securing Screws Remove Wires Transformer Heating Relay Securing ...

Page 19: ...ear of the fuse holder and push out the fuse holder from the oven rear 3 Replace fuse holder and refit in reverse order Locking Tabs Disconnect Wires Fuse Holder Fuse Cap 5 1 4 Overtemp Thermostat Temperature Probe Remove Rear Access Panel 1 At the rear of the oven remove the vent shroud and rear access panel Overtemp Thermostat 1 Unhook back of phial from the phial holder inside the oven 2 Pull p...

Page 20: ... 11 Carry out a functional check of temperature probe using the oven controller Temperature Probe Type PT1000 Temperature o C o F Resistance 5 0 30 1000 Ω 50 122 1194 Ω 100 212 1385 Ω 150 302 1573 Ω 180 356 1685 Ω Temp Probe Gasket 5 Remove 2 screws securing overtemp and remove overtemp from rear of oven 6 Refit in reverse order Temperature Probe 1 Disconnect temperature probe cable from the rear ...

Page 21: ...emove the vent shroud and rear access panel Fan Motor E23 E27 1 Remove the fan baffle securing screw E27 2 Screws Securing Screw Fan Baffle Securing Screw Fan Baffle Just Loosen Screws Remove Screws Vent Shroud E23D Fan Baffle Shown Fan Motors E28 1 Remove the fan baffle securing screws Fan Baffle Securing Screws Fan Baffle Fan Securing Nut 13mm Oven Fan E23 E27 Fan Remove Screw Fan Securing Nuts ...

Page 22: ... bolt until fan is released from the motor shaft 4 Remove fan puller fan securing nut and remove the fan Fan Puller Securing Nut Fan Puller Fan Puller Bolt Ensure Puller is located in Groove Apply Heat in this area Motor Removal All Models 1 At the rear of the oven disconnect motor wires from motor connection block note the wire positions 2 Remove Motor securing Nuts Spring Washers Flat Washers 3 ...

Page 23: ...m inside oven remove the fan baffle 3 Remove the 3 screws securing the element in the oven 4 Withdraw the element and gasket from the oven 5 Replace in reverse order ensuring that the new element gasket supplied with the element is fitted To Replace Heating Elements E28 1 Disconnect element wires from terminals 2 From inside oven remove the fan baffle Disconnect these Wires Securing Screws Securin...

Page 24: ...ter supply to the oven 5 Disconnect the hose connection to the oven at the oven water connection point 3 Remove 3 screws securing element in oven 4 Withdraw the element and gasket from oven 5 Replace in reverse order ensuring that the new element gasket supplied with the element is fitted 6 Refit oven fan baffle and racks to the oven 7 Refit oven rear access panel and vent shroud Securing Screws S...

Page 25: ...he centre and side racks to the oven 9 At the rear of the oven refit the rear access panel and the vent shroud Remove Screws Spray Nozzle Unscrew and Remove Nut and Olive Water Elbow Assembly Water Pipe Water Solenoid 1 Loosen copper pipe connection into oven at the brass fitting 2 Disconnect the copper pipe connection to the solenoid valve by pressing down on the grey ring of the quick fit connec...

Page 26: ...Locked Position Oven Hinge Slot Door Hinge 1 With the oven door removed as shown earlier remove the two base screws at the bottom of the hinge 2 Remove 3 hinge assembly screws 3 Withdraw hinge assembly from bottom of the door 4 Re assemble in reverse order Door Inner Glass Glass Removal 1 Open the oven door fully 2 Using a suitable instrument move the door lock catches from the unlocked to the loc...

Page 27: ...Open the oven door fully and using a suitable instrument move door lock catches to the unlocked position NOTE Check that both Door Lock Catches are in the Un Locked position before closing the door 4 Close the oven door Door Lock Catch in Locked Position Locating Tab Locating Peg Door Lock Catch in Unlocked Position 5 1 9 Door Microswitch 1 At the rear of the oven remove the vent shroud and rear a...

Page 28: ...e lamp glass lamp gasket and lamp bulb Remove 2 Screws Remove 4 Screws Support Frame Lamp Glass Lamp Gasket Lamp Holder Lamp Bulb 5 1 10 Oven Light Fitting Light Assembly Removal 1 Lock door hinges in the open position 2 Remove oven door by lifting door up and away from oven 3 Remove 2 screws on underside of control panel and remove control panel 4 Remove the vent shroud and rear access panel Door...

Page 29: ...s Green Wire Pry out these locking tabs Pull fixture and wires out of oven Light Plug Light Fitting Re fitting 1 Connect the green earth wire to the rear of the lamp fixture and cable tie the electrical wires together for ease of fitting 2 From inside the oven feed the electrical wires through the light fixture opening in the oven liner 3 Carefully pull out the bottom of the oven wrapper on the LH...

Page 30: ... Lamp Holder Lamp Bulb 5 2 1 Door Microswitch 1 Remove the vent shroud and rear access panel 2 Bend the microswitch activation arm so that the microswitch open circuits when door is open 3 Check microswitch adjustment when door is opened and closed 4 Refit the rear access panel and vent shroud 5 2 2 Temperature Calibration 1 Place temperature probe in the centre of oven 2 Close door and allow temp...

Page 31: ...VICE FACTORY PASSWORD 321 Rotate Timer knob to enter Service Password Press Light key to confirm password Left Display will show one of the operator settings eg Right Display will show the value of the setting eg 3 SETTING THE PARAMETERS Rotate Timer knob to the parameter required Press Light key to confirm parameter Right Display will flash Whilst Right Display is flashing rotate Timer knob to se...

Page 32: ...es For users who do not connect steam and also special account provision which does not want or need steam no YES YES U P14 Steam Injection Pulse Time This is the duration of each steam pulse in tenths of a second eg 25 2 5seconds 120 12 0 seconds 0 1 30 0 1 0 sec S P16 E23 E27 E28 Oven Fan Rotation Time The time the fan will rotate in one direction before changing direction 1 999 120 sec S P17 E2...

Page 33: ...Electrical Schematics 31 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E23D3 E27D2 Electrical Schematic ...

Page 34: ...Electrical Schematics 32 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E27D3 Electrical Schematic ...

Page 35: ...2 M Ø L1 LIGHT FAN MOTOR 120W OVEN 25W DOOR SWITCH No Nc C 240V INPUT HEAT LIGHTS STEAM 240V INPUT 12VAC INPUT DOOR INPUT COMMON OVEN TEMP PROBE MOTOR TRANSFORMER 208 240V 12V 20VA 208V 220V 240V WATER SOLENOID CAPACITOR 5uF MOTOR CONTROL RELAY BOARD CONTROL DISLAY BOARD MOMETARY ENCODER TEMP MOMETARY ENCODER TIME ENC 2 ENC 1 HEATING RELAY 8 1 0 4 6 2 31 21 11 32 22 12 M FAN MOTOR 120W CAPACITOR 5...

Page 36: ...Wiring Diagrams 34 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E23D3 Wiring Diagram ...

Page 37: ...Wiring Diagrams 35 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E27D2 Wiring Diagram ...

Page 38: ...Wiring Diagrams 36 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E27D3 Wiring Diagram ...

Page 39: ...Wiring Diagrams 37 Turbofan E20D Series Convection Ovens Copyright Moffat Ltd 10 February 2016 Amendment 1 E28D4 Wiring Diagram ...

Page 40: ...3057 WRAPPER E28 D 2 234738 VENT INSERT D 3 232680 OVEN VENT REAR COVER D 4 238860 REAR PANEL E23 D 238861 REAR PANEL E27 D 238862 REAR PANEL E28 D 5 232379 ADJUSTABLE LEG 3 76mm D 6 232380 FOOT O RING C 7 233910 DOOR ASSY E23 C 232894 DOOR ASSY E27 C 232895 DOOR ASSY E28 C 232667 DOOR SEAL E23 B 232666 DOOR SEAL E27 B 234466 DOOR SEAL E28 B 8 Recommended Parts Level RPL Number of units in service...

Page 41: ...57 SPRAY NOZZLE C 22 238986 GASKET WATER ELBOW A 23 233862 MICROSWITCH A 24 237447K TEMP PROBE KIT DIGITAL B 25 237337 FAN MOTOR L7 EB25 2 POLE 1 SPEED B 26 238989 MOTOR SHAFT SEAL B 27 234137 FAN B 235420 FAN PULLER TIGHTENER not shown C 28 234088 OVEN ELEMENT 2800W 240V E23D3 E27D2 B 234089 OVEN ELEMENT 2800W 220V E23D3 E27D2 B 234108 OVEN ELEMENT 4500W 240V E27D3 B 234107 OVEN ELEMENT 4500W 220...

Page 42: ...5 C 20K 55 33579 030 A 18 026160 TERMINAL BLOCK D 19 234251 CAPACITOR 5µF 208 240V B 237336 CAPACITOR 6µF 200V B 20 238983 WATER ELBOW ASSEMBLY D 21 021057 SPRAY NOZZLE C 22 238986 GASKET WATER ELBOW A 23 233862 MICROSWITCH A 24 237447K TEMP PROBE KIT DIGITAL B 25 237337 FAN MOTOR L7 EB25 2 POLE 1 SPEED B 26 238989 MOTOR SHAFT SEAL B 27 234137 FAN B 235420 FAN PULLER TIGHTENER not shown C 28 23408...

Page 43: ...38215 SIDE RACK RH E27 2 Tray 600 x 400 D 238217 SIDE RACK RH E27 3 Tray 600 x 400 D 238219 SIDE RACK RH E28 600 x 400 D 233556 SIDE RACK E28 D 11 232682 SIDE RACK LH E23 D 234721 SIDE RACK LH E27 2 Tray D 233558 SIDE RACK LH E27 3 Tray D 238214 SIDE RACK LH E27 2 Tray 600x400 D 238216 SIDE RACK LH E27 3 Tray 600 x 400 D 238218 SIDE RACK LH E28 600 x 400 D 12 232879 FAN BAFFLE E23 D 232896 FAN BAF...

Page 44: ... 228132 TUBE CLIP B 37 233865 BADGE MOFFAT D 233867 BADGE BLUE SEAL UK CAN D 38 234447 KNOB INDEX B 39 238047 ENCODER MOMENTARY 1 1M A 40 238194 DIGITAL CONTROLLER KIT B 41 238124 CONTROL PANEL LAMINATED E23D D 238125 CONTROL PANEL LAMINATED E27D E28D D 38a 238895 KNOB STOP PLATE Recommended Parts Level RPL Number of units in service B 5 10 C 10 50 A 1 5 D 50 ...

Page 45: ...8 DOOR TOP TRIM E23 D 233254 DOOR TOP TRIM E27 E28 D 45 234602 INNER GLASS CATCH T FAN LH D 46 234624 INNER GLASS CATCH T FAN RH D 47 233913 DOOR INNER GLASS ASSY E23 C 233368 DOOR INNER GLASS ASSY E27 C 233346 DOOR INNER GLASS ASSY E28 C 48 003397 ELEMENT SPACER PLATED D 49 233293 DOOR HINGE E23 C 233294 DOOR HINGE E27 C 233295 DOOR HINGE E28 C 50 233352 DOOR BOTTOM COVER D Recommended Parts Leve...

Page 46: ...ndment 1 SK STANDS SK23 Stand for E22 and E23 610mm 24 W x 530mm 20 D x 900mm 35 H Accepts US pan and EN tray SK2731U Stand for E27 E28 810mm 32 W x 650mm 25 D x 900mm 35 H Accepts US and US full pan SK2731N Stand for E27 E28 810mm 32 W x 650mm 25 D x 900mm 35 H Accepts EN 600x400 or GN1 1 pans ...

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