Service Manual - Click Wheel CT75
Contents
1. By Appointment to Her Majesty Queen Elizabeth II Suppliers of Commercial Refrigeration Foster Refrigerator King s Lynn ENUEN 3214135 JeUIBO March 2014 Version 1 A Division of ITW Ltd Foster Refrigerator Oldmedow Road King s Lynn Norfolk PE30 4JU United Kingdom 001 ISO 9001 ISO 14001 Call 44 0 843 216 8800 Fax 44 0 843 216 4700 Email support foster uk com www fosterrefrigerator co uk Contents Manual Information amp Health amp Safety Notes Environmental Management Policy Disposal Requirements Start Up Controller Operation amp Information Defrost Alarms amp Warnings 6 to 7 Service Settings 7 Parameters Probes amp Settings 7 to 10 Wiring Diagram 11 Troubleshooting amp Notes 12 to 15 The products and all information in this manual are subject to change without prior notice We assume by the information given that the person s working on these refrigeration units are fully trained and skilled in all aspects of their workings Also that they will use the appropriate safety equipment and take or meet precautions where required The service manual does not cover information on every variation of this unit neither does it cover the installation or every possible operating or maintenance instruction for the units Health amp Safety Warnings and Information Make sure the power supply is turned off before making any electrical repairs To minimise shock and fire hazard2. The default operating profile is STANDARD The table identifies which programs are available from the profile selected EN SERVICE STANDARD STANDARD EXPRESS EXPRESS THAW THAW Press 2 seconds for Exit Parameter Access From the profile screen once the selection has been made press and release the dial to access the parameter list The screen will display the parameters as shown in the screen below left To access the system parameters rotate the dial anticlockwise see below right i STANDARD STANDARD Er my AUTOMATIC THAW MANUAL PROVE 1 MANUAL PROVE 2 MANUAL PROVE 3 Press 2 seconds for Exit Press 2 seconds for Exit Selection is made by pressing and releasing the dial The table below contains the complete parameter list and includes the selectable range and default values Parameters STANDARD PARAMETER DESCRIPTION VALUE DEFAULT SETTINGS STORAGE Air Temperature C 28 25 2 2 PROGRAM 1 Default P1 Time Default MINUTES P1 Time Minimum MINUTES 0 900 60 330 P1 Time Maximum MINUTES 0 900 600 330 me els s sje Default o ir WINUTEE 568 6s 2 CS eee et 4 O9 P2 Time Maximum MINUTES 0 900 eo o PROGRAM 2 P1 Temperature Default P1 Time Default MINUTES P12 P13 330 420 P1 Time Minimum MINUTES 0 900 60 ado P1 Time Maximum MINUTES 0 900 600 420 mm elo ps se
3. Residual Current Circuit Breaker with Overload Protection RCBO supplied circuit Start Up and Operation SYSTEM TEST When mains electrical power is first applied to the controller it will carry out a self SEE test function for approximately 3 seconds During this period the display will show Software Revision 1b By LAE ELECTRONIC On completion of the self test the controller will revert to the last chill program that was run STORAGE Programme 1 Programme 2 Programme 3 Controller Information Surf Navigation Click Wheel Display 00 556022 Click Wheel 00 556020 Probes Air Probe SN2K25P1 00 556293 Overtemp Probe BC Man 101 0005 15247510 Food Probe 00 554451 T Handle Probe from Feb 2000 6mmx150mm Controller Use Move your finger lightly A around the click wheel either clockwise or counter clockwise to select the programme you require Press and release the centre button to start the program Press and hold for 2 seconds to stop the Program Temperature Operation Upon starting the selected Thaw cycle the controller will increase the internal air temperature in a controlled manner throughout the time period determined by the Phase 1 time and temperature parameters e g programme 1 default time setting Shours 30 minutes default temperature setting 10 C On reaching the cabinet air temperature of 10 C the controller will cycle between heat and refrigeration relative to the ph
4. defective component Change the drier Perform a good vacuum and recharge unit Check electrical connections and make sure that the fan blade isn t stuck Replace the fan motor if it doesn t work Re arrange product to allow for proper air flow Make sure there is at least four inches of clearance from evaporator Replace fuse or reset circuit breaker Check for appropriate insulation on the connections of each component Check if the noise goes away after you level the refrigerator While the compressor is working check to see if metal parts are in contact with one another and or if the screws that fasten the condenser are tightened Check if the fans are securely fastened Also check if the fan blades are loose broken or crooked If so change the faulty blade If the noise persists after all other measures have been taken it may be originating from the compressor Locate and tighten loose part s 13 Extreme condensation inside the refrigerator long periods of time Condensing unit runs for Notes Controller is set at a very cold position The outside environment s relative humidity is very high over 75 The refrigerator door won t shut completely The refrigerator had been placed at an inadequate location Excessive amount of warm product placed in cabinet Prolonged door opening or door ajar Door gasket s not sealing properly Dirty condenser coil Evaporator coil iced
5. over Set the controller to a warmer position amp check to see if compressor stops as should This type of occurrence is caused by local climatic conditions and not by the refrigeration unit Check the door and or the magnetic gasket Adjust the door hinges if needed replace the gasket if broken The unit must not be near sources that produce too much heat Advise user to leave adequate time for products to cool down Advise user to ensure doors are closed when not in use and to avoid opening doors for long periods of time Ensure gaskets are snapped in completely Remove gasket and wash with soap and water Check condition of gasket amp replace if necessary Clean condenser coil Unplug unit and allow coil to defrost Make sure thermostat is not set too cold Ensure that door gasket s are sealing properly Select manual defrost and ensure system works 14 JE DNE NE XE RO EE E O FRiIiGERAT Foster European Operations France Foster Refrigerator France SA Tel 33 01 34 30 22 22 Fax 33 01 30 37 68 74 Email info foster fr com Germany Foster Refrigerator Gmbh Tel 49 781 990 7840 Fax 49 781 990 7844 Email info foster gmbh de Foster Refrigerator Oldmedow Road Kings Lynn Norfolk PE30 4JU Tel 0843 216 8833 Fax 0843 216 4707 Website www fosterrefrigerator co uk Email support foster uk com a Division of ITW UK Ltd CT25 CLICKWHEEL SMO3 14 GB 15
6. A copy of the Environmental Policy is available to all contractors and suppliers upon request The organisation is committed to working with suppliers and contractors where their activities have the potential to impact upon the environment To achieve the aims stated in the Environmental Policy we require that all suppliers and contractors operate in compliance with the law and are committed to best practice in environmental management Product Support and Installation contractors are required to 1 Ensure that wherever possible waste is removed from the client s site where arrangements are in place all waste should be returned to Foster Refrigerator s premises In certain circumstances waste may be disposed of on the client s site if permission is given if the client has arrangements in place for the type of waste 2 If arranging for the disposal of your waste handle store and dispose of it in such a way as to prevent its escape into the environment harm to human health and to ensure the compliance with the environmental law Guidance is available from the Environment Agency on how to comply with the waste management duty of care 3 The following waste must be stored of separately from other wastes as they are hazardous to the environment refrigerants polyurethane foam and oils 4 When arranging for disposal of waste ensure a waste transfer note or consignment note is completed as appropriate Ensure that all waste is correctl
7. Default P2 Time Default MINUTES PIS P17 P2 Time Minimum MINUTES P ITR P2 Time Maximum MINUTES 0 900 60 0 PROGRAM 3 P1 Temperature Default P1 Time Default MINUTES P20 P21 540 540 P1 Time Minimum MINUTES Do 900 eo sao Pi Time Maximum MINUTES 0 900 60 540 P2 Temperature Default P2 Time Default MINUTES P24 P25 P2 Time Minimum MINUTES so to om P2 Time Maximum MINUTES 0 900 60 Jj O PROGRAM 4 P1 Temperature Default P1 Time Default MINUTES P28 p29 P1 Time Minimum MINUTES 5 9 1 9 E P1 Time Maximum MINUTES 0 900 P2 Temperature Default P2 Time Default MINUTES a as o P2 Time Minimum MINUTES To a a P2 Time Maximum MINUTES 0 900 60 9 0 SYSTEM P1 Heat Hysteresis P2 Heat Hysteresis Storage Hysteresis Short Cycle Dela MINUTES 0 30 2 2 Thaw Fan OP FUNCTION CYCLE AUTO ON Storage Fan OP FUNCTION CYCLE AUTO ON AUTO Defrost Type FUNCTION OFF ELE GAS Defrost Per Da INTEGER 0 24 4 J4 Defrost End Time MINUTES 1 60 20 200 Temperature MINUTES 0 30 1 1 Temperature Duty Cycle 1096 oO 10 6 6 Time Door Switch 1 FUNCTION MINUTES 0 30 1 1 Door Alarm Delay MINUTES 0 30 5 5 Alarm High Alarm Dela MINUTES 0 120 30 4 30 SECONDS 0 120 20 20 NN CENE CNN CNN Interval FUNCTION A
8. Whilst in the program selection screen press and hold the dial for 2 seconds the information screen will be displayed continue pressing the dial for a further 2 seconds to display the SERVICE MENU LANGUAGE will be highlighted DIAGNOSTICS FOOTPRINT CODE Press 2 seconds for Exit Changing Text Language With LANGUAGE highlighted press and release the dial ENG English will be highlighted Note English is the only language available for this controller Settings and Parameters Passcode Rotate the dial until you reach PASSCODE below left press and release the dial to highlight the code below right Rotate the dial until you reach the code 131 Once achieved press and release the dial to acknowledge SERVICE SERVICE LANGUAGE ENG DIAGNOSTICS DIAGNOSTICS 1 COMP FOOTPRINT FOOTPRINT Press 2 seconds for Exit Press 2 seconds for Exit Profiles You are now in the program profiles The controller has 5 operating programs STORAGE Program 1 Program 2 Program 3 and Program 4 These programs are all available depending upon which of the profiles are selected see below Storage Program X Program2 Program3 Program4 SME TR Y STANDARD v v do Mo 7 J Y X DISABLED v ENABLED To change the profile rotate the dial to select program press and release the dial to accept the change The 3 chevrons in the box opposite the selected program confirm the change
9. ase 1 parameter settings This will be followed by the second timed period Phase 2 which will lower the cabinet temperature to avoid any surface damage to the product Default time setting 1 hour default temperature setting 7 oC On reaching the cabinet air temperature of 7 C the controller will cycle between heat and refrigeration relative to the phase 2 parameter settings NOTE This phase is not used by KFC see separate parameter list Finally on completion of the phase 2 time period the controller will enter an indefinite period holding the cabinet temperature at 1 C to 4 C refrigeration only Double Thaw Phase o i Time Single Thaw Phase Cycle KFC mE PAN Time S eujureJ60Jd S E BACY jou SBOP siu 1nq 19 0J1u09 ou uo eujureJ60Jd UNO e si BBY sjonpoud 1uaJaJlip 40J AeA Aew SOW eujueJ60Jd ou se juo eouepinf JO sue 8Aoqe SU 3 LON WVWeYSO0udd G1IOH casvHd MZE Nise G1OH S3SVHd ES are I NVHOOHd ADVYOLS aes c INVHOOUd c had O ja fa I NVHOOHd ADVYOLS e NvdDOdd L NVHdOdd ADVYOLS 9poui d33 1S dois 0 spuooes Z JO DIOU pue ssaJg WvHooud ueJ604d eui uelis SS Z O uonq SUS ou eseo aJ pue ssaJg e en BOvHOIS anba nOA ouweiboJd ou 129 8S 0 9SIMY90 9 J9 UNOD JO BSIMYIOJO JOUJO JOSUM XOIj9 OU punoJe AUDI Jobui INOA SAO NOTE For KFC models it is not recommended to alter the time A
10. ermal protector etc Compressor motor has a winding open or shorted Compressor stuck Temperature control contacts are open Incorrect wiring Fuse blown or circuit breaker tripped Power cord unplugged Controller set too high Cabinet in defrost cycle Controller is set at a very cold position Controller does not disconnect the condensing unit Control contacts are stuck closed Defective or incorrect temperature control Controller is set at a very warm position Condenser is dirty The refrigerator has been placed at an inadequate location Compressor is inefficient or there is a high pressure due to the air in the system Iced up evaporator coil Emm Solution Use voltmeter to check Use ohmmeter to check for continuity Replace defective component Measure ohmic resistance of main and auxiliary winding using ohmmeter Compare with correct values Change compressor Repair or replace the contacts Check wiring diagram and correct Replace fuse or reset circuit breaker Plug in power cord Set controller to lower temperature Wait for defrost cycle to finish Set to warmer position and check if the compressor stops according to controllers operating range Check the insulation of the thermostat If problem persists change the thermostat Change the control Check amperage load Determine correct control and replace Adjust to colder setting Clean condenser The unit must not be
11. fter one minute the display will change to show the screen in the middle showing the time remaining plus the cabinet temperature displayed in the left hand corner of the display With one hour remaining on the programme the display will change to show the screen second from the right displaying time and temperature On completion of the programme the display will change to display the screen on the right indicating temperature has been achieved and will hold the temperature at plus 29C until the dial is pressed for 2 seconds terminating the programme EMEN 106 es 20 Pg SO ss PROGRAM 1 5 30 5 30 59 59 ne TURN TO Adj PRESS TO STOP GGCGG GGCGG If a programme is not run for 20 minutes the display will change to show the controller in sleep mode The sleep mode will be maintained until the dial is pressed rotated or the door opened when the display will revert to showing the User Menu Defrost Defrosting is only activated during the Storage mode The interval between defrosts is 6 hours this means that over a twenty four hour period whilst in the storage mode it will defrost 4 times Alarms and Warning Door Open Alarm If the door is opened during a programme or storage phase the evaporator fan will stop and screen will change see below PROGRAMME 1 Fh 2 C 5 30 After 1 minute the condensing unit will stop if the door is left open for more o than 5 minutes the alarm will sound The alarm can be cancelled b
12. ir Probe Offset LK 4 LES O ao Evaporator Probe l zm ow o od 5 oo o INTEGER 0 100 50 50 P60 Addrss J INTEGER NOTE On early version of this model the P39 Storage Fan OP was set to AUTO the setting should be changed to ON Probes Air and Evaporator Probes The air and evaporator probes type 2K NTC are the same and are identified as T1 Air Probe and T2 Evaporator Probe These are the thermistor type and are fully enclosed to make it completely waterproof and resilient to temperature variation within the limits of rapid cycling The probe is capable of measuring temperature in excess of 30 C and 50 C with 19K accuracy at 1 C and no more than 29K at the upper and lower temperature ranges Probe temperature resistance values 0 5 716 80 0 318 90 0 24 60 0 582 a H 10 TT TTT suu am we SHIBU T IG NENNEN NEN a L i cae uh AH a m ka Sn HS AL1465 j ON T b area apa 9 3 s n i L cw d ap iw ce o 0 ee Me I M L HB I T te B LL d S amp Jd E j wc Y L G 1 104 Wesbeig Bum Troubleshooting Problem Compressor will not start The temperature is too cold The temperature is not cold enough N 7 AN gt Possible Cause gt gt Electrical conductor or wires may gt 9A No voltage in socket be cut Defective electrical component thermostat relay th
13. near stoves walls that are exposed to the sun or places that lack sufficient air flow If there is air in the system purge and recharge Check temperature control refrigerant charge and defrost mechanism Remove all ice manually and start over 12 Electrical Shocks Noise a gt bP PPP PB o gt Restriction in system The refrigerator has been used improperly Too many door openings Excessive heat load placed in cabinet The refrigerator has been overcharged with the refrigerant gas The refrigerant gas is leaking The evaporator and or condenser fans are not working Blocking air flow Fuse blown or circuit breaker tripped Wires or electrical components are in direct contact with metallic parts The refrigerator is not properly levelled The condenser is not fastened correctly Copper tubing is in contact with metal The evaporator and or condenser fans are loose Compressor has an internal noise Loose part s Locate exact point of restriction and correct The shelves must never be covered with any type of plastic or other material that will block the circulation of cold air within the refrigerator Advise user to decrease if possible Advise user not to put in products that are too hot Check to see if condensation or ice crystals have formed on the suction line If so charge with the correct amount of gas Find the location of gas leak in order to seal and replace the
14. s please do not plug or unplug the unit with wet hands During maintenance and cleaning please unplug the unit where required Care must be taken when handling or working on the unit as sharp edges may cause personal injury we recommend the wearing of suitable PPE Ensure the correct moving and lifting procedures are used when relocating a unit Do NOT use abrasive cleaning products only those that are recommended Never scour any parts of the refrigerator Scouring pads or chemicals may cause damage by scratching or dulling polished surface finishes Failure to keep the condenser clean may cause premature failure of the motor compressor which will NOT be covered under warranty policy Do NOT touch the cold surfaces in the freezer compartment Particularly when hands are damp or wet skin may adhere to these extremely cold surfaces and cause frostbite Please ensure the appropriate use of safety aids or Personnel Protective Equipment PPE are used for you own safety A A A N 9 N N A l Environmental Managernent Policy Product Support and Installation Contractors Foster Refrigerator recognises that its activities products and services can have an adverse impact upon the environment The organisation is committed to implementing systems and controls to manage reduce and eliminate its adverse environmental impacts wherever possible and has formulated an Environmental Policy outlining our core aims
15. y closing the EINEN PHASE 2 HOLD door Door Open High Temperature Alarm The alarm will sound and high temperature alarm will be displayed if the storage temperature rises too high for too long Causes for this alarm could be Is the airflow restricted Does the condenser filter require cleaning Is the evaporator fan running HIGH TEMPERATURE If the problem persists call your Foster Authorised Service Company Power Fail The alarm will sound in the event of power failure to the machine If the power is off for less than five minutes the unit will re start on the resumption of the power supply without affecting the selected cycle If the power is off for longer than five minutes the controller will enter the storage mode on the resumption of the power POWER FAILURE To re start press and release the dial the screen will return to the hold screen Press and hold the dial for two seconds the display returns to the program selection Air Probe If this alarm occurs the programme will stop with the screen displayed left The alarm will sound and can be cancelled by pressing and releasing the dial or it will stop after a set period but resound again after a pre set time The controller will automatically enter the storage phase until the cycle is stopped but it will not be possible to start further cycles until your Foster Authorised Service Company has AIR PROBE rectified the fault Service Settings Access to Settings
16. y described on the waste note and include the appropriate six digit code from the European Waste Catalogue Your waste contractor or Foster can provide further information if necessary 5 Ensure that all waste is removed by a registered waste carrier a carrier in possession of a waste management licence or a carrier holding an appropriate exemption Ensure the person receiving the waste at its ultimate destination is in receipt of a waste management licence or valid exemption 6 Handle and store refrigerants in such a way as to prevent their emission to atmosphere and ensure they are disposed of safely and in accordance with environmental law 7 Make arrangements to ensure all staff who handle refrigerants do so at a level of competence consistent with the City Guilds 2079 Handling Refrigerants qualification or equivalent qualification 8 Ensure all liquid substances are securely stored to prevent leaks and spill and are not disposed of into storm drains foul drain or surface water to soil If not disposed of properly all refrigerators have components that can be harmful to the environment All old refrigerators must be disposed of by appropriately registered and licensed waste contractors and in accordance with national laws and regulations Foster Refrigerator recommends that the equipment is electrically connected via a Residual Current Device such as a Residual Current Circuit Breaker RCCB type socket or through a
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