AT1-5 & LDU15 - Foster web spares
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1. r GENO OLDE s OF GREEN O OLDE 6 BOF C METECHONT COMPUANT FUNCHASSIC BON LC125 Meatwell with LDU15 Controller Feb 04 till July 09 then AT1 5 Controller July 09 onwards ISO 14001 ISO 9001 L FOSTER Service Manual He Issued October 2010 Original Aug 09 Contents Manual Information amp Health amp Safety Notes 1 Environmental Management Policy 2 3 AT1 5 Controller Information 3 to 4 Alarms and Warnings 4to5 5 to 6 7 10 11 to 13 Service Manual Information 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 hazards please do not plug or unplug the unit with wet hands O A During maintenance and cleaning please unplug the unit where required io Care must be taken when handling or working on the u2. 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 wno handle refrigerants do so at a level of competence consistent with the City Guilds 2078 Handling Refrigerants qualification or equivalent qualification 8 Ensure all liquid substances are securely stored to prevent leaks and spill and are not disposed of to storm drains foul drain or surface water to soil Disposal Requirements If not disposed of properly all refrigerators have components that 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 IMPORTANT CONTROLLER CHANGE INFORMATION AS OF FEB 2004 THIS UNIT HAD THE LDU15 00 555357 CONTROLLER AS OF 22 JULY 2009 THIS HAS NOW BEEN REPLACED WITH 1 5 00 556223 CONTROLLER PLEASE NOTE THAT IF YOU ARE REPLACING THE LDU15 CONTROLLER TO THE NEW AT1 5 CONTROLLER YOU WILL ALSO HAVE TO REPLACE THE AIR PROBE WITH SN4K150P1 00 556187
3. LC125 Wiring Diagram with the LAE AT1 5BS6E FS1 Controller A B D E Fo H J Kf SEE MOTE 3 1 LAE ATI RSE FS 0 556723 CONTROLLER lal al fi Sa 05 9 ae MAINS SWITCH pk B 3 BR T BR t N BL CL 48 BL F GY 4 SEE NOTE 4 CUNDENSING i MN Crave NOTES BL 1 ALL CABLES ARE imm UNLESS STATED 2 GOOR OE AR BCN GY GERNELLON 7 Un WIFINGDIAGRAN WH WHITE 1 4 FOSTER REFRIGERATOR U K LTD 3 CONTROLLER SET FOR MO Q DEFROST WY STER oe OLDMRDOW ROAD ONGS LYNN NORFOIR 4JU 4 PROBE 10K HIG SM4KISFI 020 5567 Controller Information for models using the LDU 151E BG Controller 00 555357 When the controller is switched on a single line appears on the display for 3 seconds to indicate the autotest period After this period the air temperature measured by the T1 probe is displayed It is strongly advised that before adjusting any Service Parameters a thorough understanding of the following instructions should be obtained LDU 15 Controller Check temperature set point Check set point by pressing the set button To increase set point press set To decrease set point press set Factory Temperature Set Point 21 C Exit from set up occurs after 10 seconds if no button 15 pressed Manual Defrost To initiate a manual defrost press buttons and simultaneously Cont
4. 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 The refrigerator had been placed at an inadequate location broken The unit must not be near sources that produce too much heat The light switch is off position Press the light switch to on position False contact on the light switch the fluorescent tube the ballast Inspect all connections Light switch ballast and or fluorescent tube are damaged Replace the damaged component Condensing unit runs for Excessive amount of warm product Advise user to leave adequate time long periods of time placed in cabinet for products to cool down Advise user to ensure doors are closed when not in use and to avoid A Prolonged door opening or door ajar opening doors for long periods of time Ensure gaskets are snapped in completely Remove gasket and Door gasket s not sealing properly wash with soap and water Check condition of gasket amp replace if necessar Dirty condenser coil Clean condenser coil Unplug unit and allow coil to defrost Make sure thermostat is not set too Evaporator coil iced over cold Ensure that door gasket s are sealing properly Select manual defrost and ensure system works Notes 13 FOSTER Foster Europ
5. TL COLOUR CODE BQ BROW m E UIE GA GREEW YELLOW FOSTER REFRIGERATOR U K LTO 12135 SHET 1 OF TER NS 1 49 95 E CLDMEDCHE ROAD KING S LYNN NORFOLK PES AJ NS 5 19 96 CIE H ACoA MAT Piaya a F Fie M CUP 10 Troubleshootinq Problem Possible Cause X Solution Compressor will not start No voltage in socket Use voltmeter to check cut continuity Defective electrical component thermostat relay thermal protector etc Measure ohmic resistance of main Compressor motor has a winding and auxiliary winding using open or shorted ohmmeter Compare with correct values Compressor stuck Change compressor um control contacts are EET Check wiring diagram and correct s oi Replace fuse or reset circuit breaker Power cord unplugged Plug in power cord Controller set too high Set controller to lower temperature Cabinet in defrost cycle Wait for defrost cycle to finish Conor Set to warmer position check i y the compressor stops according to position controllers operating range Controller does not disconnect the thee te Insulation of the condensing unit thermostat If problem persists change the thermostat Change the control Check Control contacts are stuck closed Defective or incorrect temperature Determine correct control and control replace The temperature is not cold Controller is set at a very warm Adjust to colder setting enough position The unit
6. This manual provides information on both controllers Meatwell Description This is a one piece foam shell with a skin evaporator and bottom mount condensing system The condensing system uses R134a refrigerant The cabinet is designed for the storage of frozen products and is top loading It is fitted with four 60mm castors rubber bumpers to each corner and a front smash bar is available as an added option but fitted as standard to Burger King units Routine Maintenance In order to keep the unit operating reliably and efficiently periodical cleaning of the condenser is necessary The frequency being determined by site conditions This operation is to be carried out with the unit turned OFF We advise the use of a soft long haired brush on the outside of the condenser taking care not to damage the fins Warning Condenser fins have sharp edges so care must be taken to avoid injury Technical Information Temperature Set Point Refrigerant R134A Refrigerant Charge Capillar 4 4mts x 042 Power Supply 230 50 1 Controller Information for models using the LAE 1 5 56 51 Controller 00 556223 Operation Guidelines Please note the unit has a rest time of 10mins before start up will begin Initial Start Up otart Up amp self Test The indication is only displayed during the first three seconds following the mains electrical power being applied to the unit During this period the controller performs a self
7. check Once the self check has been completed will be displayed Press hold x um Check temperature set point To make adjustments to the set point it is necessary to access the parameter and alter SPL and SPH accordingly for three seconds The unit will start and the air temperature will be displayed until required temperature is displayed To decrease set point press until required temperature is displayed Exit from set up occurs after 10 seconds if no button is pressed Manual Defrost To initiate a manual defrost press and hold mm dEF will be displayed release mm On completion of the defrost REC will be displayed until the cabinet temperature is achieved and then it will revert to displaying the normal cabinet temperature Set Unit to Standby Press In the display OFF will show This indication is displayed while the unit is not operating but with mains power applied to the unit This mode may be used for internal cleaning regimes and short periods when the unit is not required For extended periods of inactivity the mains supply should be isolated Alarm and Warninqs High Temperature Alarm H Will be displayed The alarm will sound but can be silenced by pressing any of the buttons however it will return after the pre set designated period The unit will return to normal operating temperature and will automatically cancel the alarm Possible Causes
8. must not be near stoves walls that are exposed to the sun or places that lack sufficient air flow The temperature is too cold 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 If there is air in the system purge and recharge Check temperature control refrigerant charge and defrost mechanism Remove all ice OA Iced up evaporator coil manually and start over is a aa e Ci Locate exact point of restriction and y 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 gt The refrigerator has been used improperly Too many door openings Advise user to decrease if possible Excessive heat load placed in Advise user not to put in products cabinet that are too hot 11 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 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 defective component Change the drier Perform a good vacuum and recharge unit Check electrical connections and make sure that the fan blade isn t stu
9. 5 LAE AT1 5BS6E FS1 Controller Parameter List Mnem Definition Min Max Default Dim Setting Readout Scale ACFE 2 flag 2 BEC XE MEE CERE NOB ONE ELO NE NN C C C eK min min C R Thermostat Hsteresis 1 Minimum Compressor Rest Time 0 Compressor Run with 1 Failure 0 Compressor Stop With T1 Failure 00 E 9 A 730 min Compressor Stop Delay From Door Opening 1 min EM NE 10 Do X y ME NET EHE E Defrost Frequency 24h 124 0 5 20 OFF L 20 REL PH 30 30 30 30 24 30 EE HN HE EE CNN BE 100 3 7 B 3 3 20 2 5 5 EF 3 3 3 3 0 0 0 30 2 6 2 OFF Defrost Display Control 2 0 60 10 Min REL ALR Low Temperature Alarm Differential U 42 0 5 AHR High Temperature Alarm Differential U Pd 30 min 90 Door Alarm Delay O 0 0 0 0 NES C 3 10 7 3 I 15 20 20 Door Alarm Dela ADO SB Button 0 1 Enabling gt DS DoorSwithEnabing YES OAU AUX Output LGT flag NON INP SN4 ST SNA4ST SN SN4 OS1 T1 air Probe Offset EC E 0 T2 evaporator Probe Enabling 052 2 evaporator Probe Offset SIM Display Slowdown 10 1 0 0 Jjex 50 ADR jUnitPeriphealAddess 01 25 1 ep 1
10. The evaporator fan is not working there is a restricted airflow through the air duct The evaporator is iced up or the compressor is not working Low Temperature Alarm to Will be displayed The alarm will sound but can be silenced by pressing any of the buttons however it will return after the pre set designated period The unit will return to normal operating temperature and will automatically cancel the alarm Possible Causes Controller is faulty not switching compressor off The compressors secondary relay will not de energise low temperature models Air Temperature Probe Failure m Will be displayed The alarm will sound but can be silenced by pressing any button There is no further action that can be taken by the user in this instance During this period the unit will continue to operate but have a reduced performance Action Replace Probe Information Menu Pressing and releasing activates the information menu From this menu you can display the temperature relating to T1 air probe T2 evaporator probe if fitted and T3 condenser probe if fitted The maximum temperature THI and the minimum temperature TLO the cabinet has achieved since it was last re set The total operating time of the condenser CND since it was last cleaned and the keyboard status LOC The information to be displayed can be selected sequentially by pressing repeatedly or scrolling buttons J to display t
11. ave 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 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 correctly 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
12. ck 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 t Replace fuse or reset circuit MEE Fuse blown or circuit breaker tripped break Electrical Shocks Extreme condensation inside the No illumination Glass door models only Wires or electrical components are in direct contact with metallic parts Check for appropriate insulation on the connections of each component 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 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 Loose part s Locate and tighten loose part s SSS SSS ree Controller is set at a very cold position The outside environment s relative humidity is very high over 75 The refrigerator door wont shut completely Set the controller to a warmer
13. ean Operations France Foster Refrigerator France SA Tel 33 01 34 30 22 22 Fax 33 01 30 37 68 74 Email commercial fosterfrance 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 LCU15 LDU15 amp ATI 5 SM 10 10 14
14. he value Exit from the info menu by pressing or it will automatically exit after 6 seconds if no buttons are pressed To reset the temperature settings recorded in THI and TLO and the hours counted in CND access the info menu press To check the LOC status scroll through to LOC press leave keys accessible NOTE with the keys locked it is not possible to turn the unit OFF or ON or to check the set point to display status YES to lock keys NO to Parameter Settinq and Adjustment It is strongly advised that before adjusting any Service Parameters a thorough understanding of the following instructions should be obtained I The parameters are accessed by pressing the following keys in succession and keeping them pressed for 5 seconds After this period the first parameter SCL will be displayed button to pass from one parameter to the next and button to go back to display the value followed by or to change it Exit from set up is by pressing or automatic if no buttons are pressed for 30 seconds Probe Identification The probe fitted to this controller is the 10k NTC type LAE SN4K15P1 Part number 00 556187 with red letter identification LAE NTC10K Temperature Resistance Table Temperature C R mid R mid EE C x Temperature C R mid KQ o QUUM 25 87 559 3382 WW 15 14 674 68 237 27 219 12 081 53 65 5 2163 42 506 17 926 8 31
15. nit as sharp edges may cause V personal injury we recommend the wearing of suitable PPE 22 Ensure the correct moving and lifting procedures 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 V PPE are used for you own safety Environmental Management Policy for Service Manuals and Duets 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 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 h
16. roller Set Up The parameters are accessed by pressing the following keys in succession set and keeping them pressed for 3 seconds Access to the parameters has been achieved with the first parameter SCL being displayed To pass from one parameter to the next press either the or To display the value press set To change the value press set to increase or set to decrease Exit from set up by pressing aux or is automatic after 30 seconds if no buttons are pressed Alarms and Warnings High Temperature Alarm Low Temperature Alarm Et T1 Probe Failure DF Defrosting in Progress Parameters for Cabinets with the LDU15 1E B Controller I LDU151E B Maximum Temperature Set Point SP Temperature Set Point 10 0 DFR Frequency 24 hours x 4 5 5 05 OAU _ Auxiliary Output Mode of Operation BAU _ Auxiliary Button Mode of Operation OS1 SIM JDispaySlowdown 1 ADR jAddes 0 j O LDU 151E BG Electrical Connections Wiring Diagram for Models Using the LDU15 Controller A B C D E F j G H J K LAE 100 151E EG FOSTER PART Ko CD 5553571 2 MAINS SATEH L BR 2h l aF Ny Q 5 n B 3n A5 BL E BA CONDENSING 4 Ta TEM HEATER BL NOTES l AL CABLES ARE imn UNLESS STATED
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