SERVICE MANUAL
Contents
1. 19 6 3 10 56 giai EE EA 19 6 3 11 Magnel 19 6 3 12 FO WI C u nw rU 19 Hevision 2 F3520 14 6 1 FAULT DIAGNOSIS 6 1 1 PPOVER DOES NOT OPERATE Incorrect electrical supply Check that the voltage across phase and neutral L1 and L2 terminals of terminal block is the voltage as stated on the unit s electrical rating plate If incorrect check electrical connection of supply wiring and or check electrical supply Power switch faulty Check if power switch latches If the switch does not latch then switch is faulty replace With switch latched check voltage across terminal 1 to terminal 3 If there is no voltage check for fault in wiring Check voltage across terminal 2 to terminal 3 If there is no voltage then switch is faulty replace NOTE When power switch is latched it should illuminate if operating correctly 6 1 2 PROVER LIGHTS NOT ILLUMINATING No power to light Check voltage across light bulb terminals If there is no voltage then check wiring If there is voltage then the lamp is faulty replace 6 1 3 FAN DOESN T OPERATE Fan motor faulty Check the supply voltage across the motor terminals If there is no voltage then check the electrical connections of supply wiring If voltage is correct then check the oven fan for f2. 32 105 F Hevision 2 F3520 26 11 SERVICE CONTACTS AUSTRALIA VICTORIA MOFFAT PTY HEAD OFFICE AND MAIN WAREHOUSE 740 Springvale Road Mulgrave VIC 3170 opare Parts Department NEW SOUTH WALES MOFFAT PTY Unit 8 142 James Ruse Drive Rosehill NSW 2142 opare Parts QUEENSLAND MOFFAT PTY 30 Prosperity Place Geebung QLD 4034 opare Parts SOUTH AUSTRALIA MOFFAT PTY Suite 8 71 Fullarton Rd Kent Town SA 5067 opare Parts WESTERN AUSTRALIA MOFFAT PTY PO Box 689 Joondalup Business Centre WA 6027 opare Parts Tel 03 9518 3888 Fax 03 9518 3838 Free Call 1800 337 963 Fax 03 9518 3895 Free Call 1800 337 963 Fax 03 9518 3895 Free Call 1800 337 963 Fax 03 9518 3895 Tel 08 8431 0522 Free Call 1800 337 963 Tel 08 9305 8855 Free Call 1800 337 963 NATIONAL COVERAGE FOR 24 HOUR SERVICE OR MAINTENANCE DIAL FREE CALL 1800 622 216 AUSTRALIA ONLY CANADA Lessard Agencies Limited PO Box 97 Stn D Toronto ONT 35 NEW ZEALAND CHRISTCHURCH MOFFAT LTD 16 Osborne St PO Box 10 001 Christchurch opare Parts AUCKLAND MOFFAT LTD 4 Waipuna Road Mt Wellington Auckland opare Parts Tel 416 766 2764 Fax 416 760 0394 Free Call 1 888 537 7273 Free Call 0800 Moffat 0800 663 328 Tel 03 389 1007 Fax 03 389 1276 Tel 09 574 3150 Fax 09 574 3159 Free Call 0800 Moffat 0800 663 328 Hevision 2 F3520 27 UNITED KINGD
3. 220 240 Volt 71 5 ohms 6 3 8 FAN MOTOR 1 Open control panel refer 6 2 1 and remove wires from fan motor terminals noting positions Fan Motor Terminals Figure 6 3 14 2 Loosen retaining bracket screw Slide bracket down to bottom position Retaining Bracket Screw Figure 6 3 15 3 Slide out motor 4 Replace and re assemble in reverse order ensuring bracket is secured in highest position Hevision 2 F3520 6 3 9 DOOR 1 Open prover door 2 Lift door vertically off hinges 3 Remove door handle and door catch plate two bolts Two Bolts Figure 6 3 16 4 Drill out rivets securing hinges to old door frame two per hinge Hivets Figure 6 3 17 5 Secure door handle and catch plate to new door 6 Rivet hinges to new door frame 7 Re hang door on E87 prover 6 3 10 DOOR HINGES 1 Open prover door 2 Lift door vertically off hinges 3 Drill out rivets securing hinges to door and E87 prover two rivets per hinge and re move hinges Door lt Hinges Hivets Figure 6 3 18 4 Rivet new hinges to door and E87 prover 5 Re hang door on prover 6 3 11 MAGNETIC CATCH 1 Open prover door 2 Open control panel 3 Unscrew two screws securing magnetic door catch to prover Two Screws Figure 6 3 19 NOTE spanner may be required to hold the nuts located inside the control panel behind the magnetic catch 4 Replace magnetic catch
4. around 25 C 77 F as higher proofing temperatures will cause the butter to melt out of the product and for yeast based doughs and breads the proofing temperature should be set higher at around 40 C 105 F in order to activate the yeast in these products On all models the air circulation fan mounted at the top of the air delivery ducting ensures that the temperature and humidity throughout the cabinet is even by creating a low velocity air circulation system throughout the prover cabinet This system overcomes the natural occurrence of hot air rising and therefore higher humidity and temperature in the upper positions of the cabinet as found with proofing units without forced air circulation The user adjustable thermostat and humidity controls are required to allow adjustment of cabinet temperature and humidity levels for the variations of temperature and humidity that different product types require Two cabinet illumination lights are provided in the E87 models and these 15 watt each incandescent filament lamps whenever the control panel power switch is switched on To prevent the formation of condensation on the aluminium frame around the front of the cabinet and to assist in minimising the condensation occurring on the door frame and door glass inner face a resistance wire heating element is fitted into the cabinet aluminium extrusion frame This heating wire is on whenever the power switch is switched on and
5. 2 INSTALLATION WARNING ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY lt is most important that the prover is installed correctly and that the operation is correct before use Installation shall comply with local electrical health and safety requirements BEFORE CONNECTION TO POWER SUPPLY Unpack and check unit for damage and report any damage to the carrier and dealer Report any deficiencies to your dealer Fit the castors which are packed inside the unit Check that the available power supply is correct to that shown on the rating plate located on the right hand side panel 220 240 V AC 50 Hz 7 5 A 1 8 kW 240 V 100 120 V AC 60 Hz 12 5 A 1 5 kW 120 V LOCATION To ensure correct operation the following minimum installation clearances are to be adhered to Hear 25mm 1 Left hand side 25mm 1 Right hand side 25mm 1 ELECTRICAL CONNECTION E87 provers are supplied with pre fitted cords Ensure unit is fitted with correct cord and plug for the installation refer to the specifications section Should changing of the cord be necessary gain access to the electrical connection terminal block and strain relief clamp by removing the control panel Figure 2 1 ASSEMBLY OF CASTORS 1 Remove the castors from inside the prover 2 Remove side racks and water trough 3 Lift and place the prover onto its back Attach the two swivel castors with brake to the
6. 30 minutes Remove trough and clean element with damp cloth when cooled Wash out trough and refit to unit Revision 2 F3520 10 4 2 ROUTINE PROCEDURES PROCEDURE INTERVAL DOOR HINGES Check for wear 12 months DOOR CATCH Ensure that catch is adjusted such that the door 12 months closes properly ELEMENTS Check that element resistances are correct to their 12 months ratings refer 6 3 6 6 3 7 WET ELEMENT Remove scaling refer section 4 1 As required HOTWIRE Check that hotwire is working 12 months Revision 2 F3520 11 5 TROUBLE SHOOTING N WARNING ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY the wall circuit breaker or fuses are off at the power board The power switch on the prover is off Incorrect electrical supply Refer fault diagnosis 6 1 1 Power switch on unit faulty Refer fault diagnosis 6 1 1 FAULT POSSIBLE CAUSE REMEDY THE PROVER DOES NOT The prover is not plugged into Plug in OPERATE START the wall socket The mains isolating switch on Turn on Depress switch Switch will illuminate Ensure electrical supply correct Replace Refer service section 6 3 3 OVEN LIGHT NOT ILLUMINATING Blown bulb No power to light Refer fault diagnosis 6 1 2 Replace Refer service section 6 3 1 Correct fault FAN DOES NOT OPERATE Faulty fan Refer fault diagnosis 6 1 3 Replace Refer service section 6 3
7. 342 LAMP HOLDER ASSEMBLY 014218 BULB 15w 240V 014219 BULB 15w 110V 15 015248 DUCTING HEAT SHIELD 16 014001 DRY ELEMENT 600w 240V 015759 DRY ELEMENT 600w 110V 17 015224 WET ELEMENT 800w 240V 015230 WET ELEMENT 800w 110V 18 012272 CLAMP TOP 19 012271 CLAMP BOTTOM 20 014725 HANGER STUD 21 015474 WATER TROUGH 22 002138 CABLE CLAMP 23 002441 INSULATOR 24 018737 BASE STIFFENER 25 015237 SPACER TUBE 26 015235 BACK PANEL 27 015234 BASE PANEL 28 017858 CABLE CLAMP 29 013885 5 RIGID 30 013890 CASTOR 5 SWIVEL 31 015240 CONTROL HOUSING 32 013586 MAINS TERMINAL BLOCK 33 015477 SIDE RACK 34 015481 HANGER SPACER 35 016650 FRAME 36 015539 HEATING WIRE 100w 240V 015538 HEATING WIRE 100w 110V 37 015238 STRIP INSERT SHORT 38 015239 STRIP INSERT LONG 39 021464 CATCH PLATE 40 021461 DOOR ASSEMBLY 41 021468 DOOR HANDLE CONTROL PANEL ASSEMBLY REFER TO SECTION 11 2 43 015295 DRIP TROUGH OPTIONAL EXTRA 44 017575 DOOR HINGE Revision 2 F3520 25 11 2 CONTROL PANEL ASSEMBLY Pos CO NO O Part No 004726 004805 004724 021473 021514 020849 023857 021472 020823 015485 014233 Description CONTROL PANEL BAKBAR C CONTROL PANEL BLUE SEAL CONTROL PANEL MOFFAT F POWER SWITCH 240V POWER SWITCH 110V PILOT LIGHT 240V PILOT LIGHT 110V KNOB HUMIDITY KNOB THERMOSTAT THERMOSTAT 50 80 C 120 175 F THERMOSTAT 0 40
8. 8 Faulty thermostat Refer fault diagnosis 6 1 6 Element blown Refer fault diagnosis 6 1 6 NO HEAT Thermostat faulty Replace Refer fault diagnosis 6 1 4 Refer service section 6 3 4 Element blown Replace Refer fault diagnosis 6 1 4 Refer service section 6 3 6 NO TEMPERATURE Faulty thermostat Replace CONTROL Refer fault diagnosis 6 1 5 Refer service section 6 3 4 NO HUMIDITY No water in trough Fill trough with water Replace Refer service section 6 3 5 Replace Refer service section 6 3 7 NO HUMIDITY CONTROL Faulty thermostat Refer fault diagnosis 6 1 7 Replace Refer service section 6 3 5 SLOW RECOVERY Overloading of prover Door opened unnecessarily Electrical supply incorrect Fan faulty Refer fault diagnosis 6 1 3 Reduce batch size Do not open unnecessarily Check supply voltage is as per rating plate voltage Replace Refer service section 6 3 8 Revision 2 F3520 12 FAULT POSSIBLE CAUSE REMEDY NO HEATING HUMIDITY Indicator faulty Replace INDICATOR Refer fault diagnosis 6 1 8 Refer service section 6 3 2 CONDENSATION ON TOP OF Hot wire faulty Replace FRAME Refer fault diagnosis 6 1 9 Refer service section 6 3 12 DOOR DOES NOT CLOSE Tray in way of door Correctly position tray in rack Damaged door magnet Replace Refer service section 6 3 11 Revision 2 F3520 13 6 SERVIC
9. COED SERVICE MANUAL 4 P gt A turbofan Revision 2 F3520 N WARNING ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY Hevision 2 F3520 CONTENTS This manual is designed to take a more in depth look at the E87 prover for the purpose of making the unit more understandable to service people There are settings explained in this manual that should never require to be adjusted but for completeness and those special cases where these settings are required to change this manual gives a full explanation as to how and what effects will result SECTION PAGE NO 1 SPECIFICATIONS s 5 2 c 7 Bs u u u a S uuu 8 3 1 Description of Controls 3 2 Explanation of Control System 4 MAINTENANCE u u u u u D u n ss 10 4 1 Cleaning 4 2 Routine Procedures 5 TROUBLE SHOOTING GUIDE 12 SERVICEPROCEDURES u lu D u 14 6 1 Fault Diagnosis 6 2 Access 6 3 Replacement T ELECTRICAL EOS 20 8 ELECTRICAL WIRING DIAGRANS Q J 21 9 SPARE PARTS S M DK PL S usss 22 10 ACCESSORIES OPTIONS 23 Th IPARTS DIAGRAM Z Lulu SCA dad av Su A IQ E LING
10. E 24 11 1 Main Assembly 11 2 Control Panel Assembly 12 SERVICE CONTACTS eius ict eee oue 27 1 IMPORTANT MAKING ALTERATIONS MAY VOID WARRANTIES AND APPROVALS Hevision 2 F3520 Revision 2 F3520 4 1 SPECIFICATIONS MODEL E87 710 28 0 35 0 ELECTRICAL ENTRY FRONT SIDE PLAN LEGEND Electrical connection entry point Dimensions shown in millimetres Dimensions in inches shown in brackets Revision 2 F3520 5 LOCATION To ensure correct operation the following minimum installation clearances are to be adhered to Hear 25 mm 1 Left hand side 25 mm 1 Right hand side 25 mm 1 PROVER INTERNAL DIMENSIONS Width 460 mm 18 Height 610 mm 24 Depth 660 mm 26 Oven Volume 0 19 m3 6 5 ft PROVER RACK SIZE Wiath 460 mm 18 Depth 660 mm 26 No of rack positions 8 Rack position spacing 75 3 ELECTRICAL SUPPLY SPECIFICATION OPTIONS 100 120 V AC 60 Hz 12 5 A 1 5 kW 120 V 220 240 V AC 50 Hz 7 5 A 1 8 kW 240 V ELECTRICAL PLUG SPECIFICATION REQUIREMENTS Australia 3 pin 250V 10A AS NZ 3112 Canada 3 pin 250V 15A NEMA 6 15 New Zealand 3 250V 10A AS NZ 3112 United Kingdom 3 250V 13A fused BS 1363A United States 3 250V 15A NEMA 6 15 Other Countries 3 pin 250V 10A minimum type to meet country standards Revision 2 F3520 6
11. E PROCEDURES WARNING ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY SECTION PAGE NO FAULT DIAGNOSIS 2 u u 15 6 1 1 Prover Does Not Operate 15 6 1 2 Prover Lights Not llluminating 15 6 1 3 Fan Does Not Operate 15 6 1 4 hog uu u z Rr 15 6 1 5 No Temperature 15 6 1 6 NO e 15 6 1 7 Flumidily a a 15 6 1 8 No Heating Humidity 15 6 1 9 Condensation On Top 15 02 EE 16 6 2 1 Control P arie u u ot ae 16 6 2 2 Control Panel Rear 16 6 3 REPLACEMENT iE Oo 16 6 3 1 HONEBUID eee a ec ET 16 6 3 2 Ter ueri Mio uuu uuu 16 6 3 3 mime 16 6 3 4 WV GINO SFE u uyu Em 17 6 3 5 e e usa 17 6 3 6 Diy Elenen OE 18 6 3 7 Wet El elmentu 18 6 3 8 d T UU m 18 6 3 9 BOO
12. F3520 9 SPARE PARTS PART NO DESCRIPTION CONTROLS 021473 owitch Power 220 240V 021514 Switch Power 110V 014233 Thermostat Temperature 015485 Thermostat Humidity 020823 Knob Thermostats 020849 Neon Indicator 014218 Oven Lamp Bulb 15W 220 240V 014219 Oven Lamp Bulb 15W 110V 015539 Heating Wire 100W 220 240V 015538 Heating Wire 100W 110V MOTOR amp ELEMENTS 013998 Motor and Fan 220 240V 013999 Motor and Fan 110V 014001 Dry Element 220 240V 015759 Dry Element 110V 015224 Wet Element 220 240V 015230 Wet Element 110V DOOR 021461 Door Assembly 021468 Handle 017575 Hinge 018947 Magnetic catch RACKS 015477 oide Rack STACKING KIT 21547 Double Stacking Kit Revision 2 F3520 22 10 ACCESSORIES DOUBLE STACKING KIT PART NO 6 LEG OPTION PART NO 15274 021547 For use with E32 G32 con vection ovens STANDOFF KIT PART NO 21336 Enables prover to take 16 wide trays Revision 2 520 23 11 PARTS DIAGRAMS 11 1 MAIN ASSEMBLY Pos Part No Description 1 015236 WRAPPER 2 015253 SUPPORT DISC Q 0 0 0 000 INSULATION 4 015483 LINER 5 018738 LINER SUPPORT 6 015244 RACK MOUNTING PLATE 7 015278 FAN LOCATING BRACKET 8 013998 FAN MOTOR ASSEMBLY 240V 013999 FAN MOTOR ASSEMBLY 110V 9 015243 FAN CLAMP BRACKET 10 015242 FAN COVER 11 015241 DUCTING 12 018947 MAGNETIC CATCH 13 015249 CAPILLARY BRACKET 14 021
13. OM BLUESEAL LTD Units 6 7 Mount St Tel 0121 327 5575 Business Park Fax 0121 327 9711 Birmingham B7 5QU England UNITED STATES OF AMERICA MOFFAT INC 3 65 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 D EEEEILLLLIIIILLIIIGUGIGLULUULILIIIILL LLLH L A OCGGGI ILLALL PC LUobDAMUOGL OLGA 11 wLV10U 705 n171R CRAl PVLALAAAAAAALAOCAT V W Ig ANAOOA AA DA L L OLO LA ALOLU OL LOBL L L AAAA AAOAAAAAe vr Revision 2 F3520 28
14. and re assemble in reverse order 6 3 12 HOTWIRE 1 Open control panel refer 6 2 1 and prover door 2 Remove silicone extrusion seal strips from prover door frame Silicone Extrusion Strips 3 Figure 6 3 20 3 Remove hotwire retaining sleeves 9 from prover frame Retaining Sleeves 9 Figure 6 3 21 4 Remove hotwire from prover noting wiring positions 5 Replace and re assemble in reverse order Revision 2 F3520 19 lt LLI OQ O lt O LLI GNNOYs 009 AOLL MOO9 21 MSL MOOS AOvC MOOS X INAW4 13 AS e SIHO I I 10 IVISOWYSHL HOLIMS YAMOd 20 Revision 2 F3520 9 i M ee ng nn J M p cr 5 08 09 liWISOWNSHL 13M 0 lt lt 9 lt gt m lt O LLI OD k n n D r F 1YLSOWJ3H1 62 numm c G Z v 61 I E N 13M T D 6 HOLIMS YIMOd 2 H zl AYIMLOH 21 Hevision 2
15. front of the prover with the screws provided Attach the two rigid castors to the rear 4 Lift the prover onto its castors and refit the water trough and side racks DOUBLE STACKING UNITS When it is desired to mount a Turbofan Countertop Convection Oven on an E87 prover a double stacking kit may be used Available from your dealer or Turbofan distributor see Spare Parts When mounting one prover on top of another a double stacking kit is also required RATING PLATE LOCATION The rating plate for the E87 prover is located at the bottom left corner of the RH side panel Figure 2 2 Hevision 2 F3520 3 OPERATION NOTE A full users operation manual is supplied with the product and can be used for further referencing of installation operation and service 3 1 DESCRIPTION OF CONTROLS FOWER EN d P z 87 1 POWER Depress to switch power on or off switch illuminates when power is on 2 THERMOSTAT Temperature range 25 40 C 75 105 F Light illuminates when elements are cycling ON to maintain set temperature Controls the prover air temperature 3 HUMIDITY CONTROL Light illuminates when elements are cycling ON to maintain set humidity Controls prover humidity LO Humidity setting for butter based pastries croissants Danish pastries etc MED HI Humidity setting for yeast based breads and dough WATER Open the prover door Fill the water trough to
16. hermostat mounted to the control panel is used to heat the water tank water and maintain water tank temperature between 50 C 122 F and 80 C 176 F This water tank temperature is controlled by the humidity level thermostat setting between the adjustments of low and high humidity The evaporation rate of the water in the water tank dependent on its temperature provides humidity into the cabinet and accordingly the setting of the humidity thermostat controls the rate of evaporation and therefore the humidity level in the cabinet An indicator light on the control panel above the humidity dial illuminates when the water tank element is On and cycles Off when the thermostat switches the heating element Off to provide an indication of the humidity control The sensing bulb of the humidity thermostat is mounted directly on the water tank heating element which are both immersed in the water tank Should the water tank level drop below the heating element the humidity thermostat will cycle Off due to the sensing bulb reacting to the radiated heat off the heating element and will prevent the humidity water tank heating element burning out through excessive temperature E87 models require the operator to manually fill the water tank and maintain the water tank level as the water evaporates through operation With all E87 models butter based products such as croissants and danish pastries should have the cabinet proofing temperature set
17. n through front of panel rotating clockwise 3 Push new neon in from front of panel and reconnect wires 6 3 3 POWER SWITCH 1 With control panel open refer 6 2 1 remove the wires from the back of the switch noting their positions Power Switch Wires Figure 6 3 3 Hevision 2 F3520 2 From back push switch through front of panel 3 Push new switch in from front of panel and reconnect wires 6 3 4 THERMOSTAT 1 Pull knob off front of thermostat 2 Open control panel refer 6 2 1 and undo 2 screws securing thermostat Two Screws Figure 6 3 4 3 Transfer wires to new thermostat 4 With door open remove right hand side rack Undo thermostat support bracket screw and remove bracket Support Bracket Screw Figure 6 3 5 5 Withdraw old thermostat phial through side of prover 6 Remove plastic sleeving from old thermostat and fit to replacement thermostat Thermostat Phial Plastic Sleeving Figure 6 3 6 7 Insert new thermostat 8 Re assemble in reverse order 6 3 5 HUMIDITY THERMOSTAT 1 Pull knob off front of thermostat 2 Open control panel refer 6 2 1 and undo 2 screws securing thermostat Figure 6 3 7 3 Transfer wires to new thermostat 4 With door open remove right hand side rack and water trough Undo thermostat support bracket screw remove bracket Remove clips holding capillary to element Support Bracket Screw Ca
18. pillary Clips Figure 6 3 8 5 Remove rubber bush in side wall withdraw old thermostat phial through side of prover 6 Remove fibreglass sleeving from old thermostat fit to replacement thermostat Fibreglass Sleeve d Thermostat Phial Figure 6 3 9 7 Insert new thermostat 8 Re assemble in reverse order Hevision 2 F3520 17 6 3 6 DRY ELEMENT 1 Open control panel refer 6 2 1 remove wires from element terminals noting position Element Terminals Figure 6 3 10 2 With door open remove right hand side rack 3 Unscrew the element from inside control housing Pull element carefully to remove from inside of prover 4 Replace and re assemble in reverse order Dry Element Ratings 110 120 Volt 20 5 ohms 220 240 Volt 70 5 ohms 6 3 7 WET ELEMENT 1 With door open remove right hand side rack and water trough 2 Undo thermostat support bracket screw and remove bracket 3 Remove clips holding capillary to element Support Bracket Screw Capillary Clips Figure 6 3 12 4 Open control panel refer 6 2 1 and remove wires from element terminals noting their positions 5 Unscrew the element from inside control housing Element Screws Figure 6 3 13 6 Pull element carefully from the inside of prover to remove Replace and re assemble in reverse order Wet Element Ratings 110 120 Volt 20 1 ohms
19. ree rotation Remove any obstruction If fan is free to spin and the voltage supply is correct then the motor is faulty replace 6 1 4 NO HEAT Thermostat faulty With cold prover set thermostat to 40 105 F Check power to terminal 1 of top thermostat If there is no power then check wiring Check power at terminal 2 If there is no power then the thermostat is faulty replace Element blown With thermostat on and heating check voltage across dry element terminals If there is no voltage check wiring voltage is correct element is faulty replace 6 1 5 NO TEMPERATURE CONTROL Thermostat faulty With thermostat in off position fully counter clockwise the heating indicator should be off If not then the thermostat is faulty replace 6 1 6 NO HUMIDITY Thermostat faulty With cold prover set humidity to HI Check power to terminal 1 of bottom thermostat If there is no power then check wiring Check power at terminal 2 If there is no power then the thermostat is faulty replace Element blown With humidity thermostat on and heating check voltage across wet element terminals If there is no voltage check wiring lf voltage is correct element is faulty replace 6 1 7 NO HUMIDITY CONTROL Humidity thermostat faulty owitch the prover on and set the humidity to LO Check that the humidity thermostat cycles on off and using a suitable probe measure the temperature of the wa
20. ter in the trough The water temperature should be 50 C 120 F 10 If the temperature continues to rise above this then the humidity thermostat is faulty replace 6 1 8 NO HEATING HUMIDITY INDICATOR Indicator faulty Check voltage across indicator terminals with controls on and appropriate thermostat turned on fully If the voltage is correct and the indicator is not illuminating then the indicator is faulty replace If there is no voltage then check wiring 6 1 9 CONDENSATION ON TOP OF FRAME Hotwire faulty Check voltage across hotwire If there is no voltage then the hotwire is faulty replace Hevision 2 F3520 15 6 2 ACCESS 6 2 1 CONTROL PANEL 1 Undo the one screw on top of control panel One Screw Figure 6 2 1 2 Panel is now free to hinge at bottom When closing the panel ensure wires and capillary tube are clear of metal or other terminals 6 2 2 CONTROL PANEL REAR i Power Switch Dry Heating Indicator Dry Thermostat Wet Heating Indicator Wet Thermostat Figure 6 2 2 6 3 REPLACEMENT 6 3 1 LIGHT BULB GLASS 1 Open the prover door 2 Pull off lamp cover b ENS Lamp Covers Figure 6 3 1 3 Unscrew bulb out of fitting 4 Screw in replacement bulb 5 Refit lamp cover 6 3 2 INDICATOR LIGHT 1 With control panel open refer 6 2 1 remove the wires from the back of the neon Figure 6 3 2 2 From back push neo
21. the halfway level in the trough front filling snout located on the right hand side Hemember to top up the water trough when the level is below the front snout Hevision 2 F3520 3 2 EXPLANATION OF CONTROL SYSTEM The E87 Prover has a power On Off switch on the control panel and isolates power to the humidity and heating fan and light circuits when switched Off When switched On the switch will illuminate to indicate that the unit is On and operational The air circulation fan is On continuously on all E87 models when the power switch is in an On position The proofing system operates on all models controls air temperature and humidity levels by way of an air heating element controlled by a mechanical bulb and capillary thermostat and a water tank heating element controlled by a mechanical bulb capillary thermostat The air heating element is positioned in the bottom of the air circulation ducting inside the cabinet and is directly controlled by the user adjustable thermostat mounted to the control panel The thermostat sensing bulb is mounted inside the cabinet to control the cabinet air temperature to the control panel setting An indicator light on the control panel above this thermostat will illuminate when the thermostat has the air heating element operating and will cycling Off with the thermostat to indicate when the temperature reaches set point The water tank heating element controlled by the humidity level t
22. will heat the aluminium frame to a warm to touch temperature Revision 2 F3520 4 WARNING ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY 4 1 CLEANING This procedure is recommended to be done once a week Frequency of cleaning the WARNING ALWAYS TURN THE element may be increased or decreased POWER SUPPLY OFF BEFORE depending on the lime depositing on the CLEANING element IMPORTANT THIS UNIT IS NOT WATER PROOF DO NOT USE A WATER JET SPRAY TO CLEAN INTERIOR OR EXTERIOR OF THIS UNIT CABINET A good quality stainless steel cleaning compound is recommended for cleaning the inside and outside of the cabinet Harsh abrasive cleaners may damage the surface SIDE RACKS To remove take hold of the centre rung and lift towards the prover top To replace hold horizontally engage in holes and push down DOOR Open the door and lift up off its hinges Wash with warm water and detergent solution using a soft sponge To refit the door simply fit onto its hinges WATER TROUGH Remove right hand side rack and remove trough Clean with warm soapy water Rinse thoroughly WATER TROUGH ELEMENT When the element becomes limed scaled remove water trough and clean Replace water trough and half fill with white vinegar or acetic acid then fill to the normal level with water Switch unit on Set humidity control to and run for approximately
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