Display Case Service Manual
Contents
1. ANM WE NEC DNE NAME INN PE OKT CNRC ANC Shutdown Temperature Delay 54 0 Net Folder Device Identification Mn o e NOTE Not Cabinet Settings Calibration according to factory test run Gas Defrost 1 Gas defrost 0 Gas defrost 15 Technical Specification Hoat Rejectio Fee Mmm Model Compressorom3 Heat hema Heat Rejection Le uL de dd Start Current kwhv2ah dB A 15 15 18 18 20A PRO 195 14 14 294 148 136 204 16A 67 lt 9 SUM70 10 148 64 40 204 13 255 lt 56 SUM90 3 148 74 460 20 13A 301 lt 56 120 1 8 1 0 20 9 413A 351 lt 6 1 14 71 60 204 13A 295 4 6 MNI120 1 16 83 900 20 353 lt 6 For cabinets with 2 compressors fitted there is 20 second delay between compressor starts so the start current of 20A is not exceeded The suction pressure as per climate class see below is between 8 and 10 C approximately 3 5 bar with a discharge temperature of 40 C clean condenser approximately 17 3 bar The cases are designed to work in an ambient temperature not exceeding 25 degrees centigrade C with a relative humidity not exceeding 6096 RH Climate Class 3 The frontal airflow s2. 7 2231 5 SS g LLL 2 E C 230 50 H 7 12 1 7 ips 4 7 Floating microswitch Heaterrod for water 10 Controller Control probe Defrost probe Interior probe 11 12 15 14 Alam 4 probe Hal 4 REGULATOR P REGULATOR E T PE 120 gt TT WIRING FMSLIM DIAG OH 4 Sil 2249 Ey i Dspay 6 Condensor fan Water evap fan e Heating wire Interior probe Alarm probe 4842 1847 WIRING D SLIM qe zi TT 2 2 REGULATOR 250V 10 1 Lee O 2 Ground Termin lighting 6 Condensor far 7 Befrost heater Floating Heaterrod for water Alarm probe WIRING DIAGRAM 2246 FMMINI 90 120 130H JY FOSTER REFRIGERATOR Foster European 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 PESO 4JU Tel 01553 691122 Fax 01553 691447 We
3. STER REFRIGERATOR Display Case Service Manual 7 12 i Service Manual ENVIRONMENTAL QUALITY MANAGEMENT MANAGEMENT ISO 14001 ISO 9001 Contents 5105 I 9 to 15 14 Environmental Management Policy for Service Manuals 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 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 clients site i
4. Pressing and releasing FNC will access the information menu use the UP or DOWN keys to scroll through and press OK to display the value The first in the menu is Sett this indicates the set value press OK to display the value Release OK and Nd will be displayed this indicates the next defrost time in hours and minutes press OK to display the value OK and Pb1 will be displayed this is the temperature indicated by the Thermostat Probe press OK to display the value Release OK and Pb2 will be displayed this is the temperature indicated by the Evaporator Probe press OK to display the value Release and will be displayed this is the temperature indicated by the Cabinet Probe press OK to display the value Release OK and Pb4 will be displayed this is the first Condenser Alarm Probe press OK to display the value Release OK and Pb5 will be displayed this is the second Condenser Alarm Probe press OK to display the value Only used on models with two condensing units Release OK and Con will be displayed this indicates which compressor is running Most cases have only 1 compressor but some have 2 Release OK and C1t will be displayed this indicates haw many hours the first compressor has been running Release and 2 will be displayed this indicates haw many hours the second compressor has been running Press FNC to return to the main display User Menu Press and hold FNC for 5 seconds to enter
5. Compressor Mage gt Defrost synchronization lm O O O ee es __ lt eee et Probe Folder p ee ___ ___ Local Display 9 3 3 3 3 3 3 3 83 3 3 3 Resolution 0 Filter Factor O qp een mro Display Temperature Offset_ OFFS o Condenser OverheatProbet 4 4 4 4 4 4 4 4 4 4 4 4 4 Condenser Overheat Probe CompressorFolder CP 44 DefrostMode d Min Working Time Lon o Max Working Time 7 Hon 60 60 60 45 45 45 60 60 6 60 6 Cooling Rate Compressor Difference b ANNE WU a 2 ee Condenser Overheat Folder 0 k 7 Alarm Temperature E OLA wep a 4 50 a Ap WE Alarm Temperature Delay M A EE EE GRE EE EGE M Shutdown Temperature _ Sd 55 55 5 52 52 52 55 55 55 5 55 55 55
6. Company Safety switch probe failure Call your Foster Authorised Service Company Safety switch probe failure Call your Foster Authorised Service Company Safety switch is ON and cabinet lights are OFF alarm signal Indicates the condenser may need cleaning Switch the cabinet OFF lift of the bottom front cover and clean the condenser using a soft brush and a vacuum cleaner Replace the cover and switch the power back on If the problem persists call your Foster Authorised Service Company Cabinet switches OFF due to overheating Indicates the condenser may need cleaning Switch the cabinet OFF lift of the bottom front cover and clean the condenser using a soft brush and a vacuum cleaner Replace the cover and switch the power back on If the problem persists call your Foster Authorised Service Company Interruption in the mains supply The cabinet will start automatically after a power cut or an interruption in the power supply The vaporisation tray at the rear of the unit may overflow during a power cut Ensure 20mm clearance between the bottom of the shelves and the product Loading the cabinet When loading the cabinet ensure that the air is retained with no obstruction to the airflow Do not place product in front of the inlet and outlet grills and must not protrude over the front edges of the shelves Improper loading will effect the operation of the Do not obstruct air channels cabinet Information Menu
7. 13 Interior probe x e I 15 Water evap limit thermostat esl 17 Lighting transform Extra lighting WIRING DIAGRAM ee Pt1000 HU ee n T 2 Z250V 10 16A _ __ fan SHELF LIGHTS ON 5 Compressor 1 19 5 Condensor ______ 77 Defrost heater T 8 Floating microswitch ne o m 9 Heaterrod for water 10 Controller 11 Control probe 12 Defrost probe 13 Interior probe Alarm probe 15 Water evap limit thermostat Lighting condensa Lighting transform Extra lighting WIRING DIAGRAM ei 12 2 2 50V 50Hz 10 16A p 2 Ground terminal Coll fon 5 Compressor Condensor fan 7 Defrost heater Floating microswitch for water Fol Controller 11 Control probe Defrost probe 13 interior probe 74 Mam probe gue em Lighting transform PE _ roni WATER PUMP WIRING MPRO rep 9 2 L 250 50Hz 10 16A ga 7 Defrost heater 11 Control probe Lighting condens Floating microswitch WIRING DI midi P BROWN ES rc 2
8. bsite www fosterrefrigerator co uk Email sales foster uk com a Division of ITW UK Ltd Foster Display Case SM 03 09 16
9. connected NOTE Err 4 or Err 5 text connection appears directly after plugging in the cabinet Off text appears with 1 2 min delay 1 Start Failure 1 Disconnect the cabinet and 2 Display or display cord failure plug in again Display shows 8888 or shows 3 Controller failure 2 Change display or display cord nothing NOTE Start failure fixed in NRC Change controller 100 with software version C1 0 or later manuf date 15 08 or later 1 Cabinet set too cold 1 Change Sti value Display shows radically other 2 Other probe than cabinet 2 Check parameter dISP cabinet value than 0 5 under normal temperature probe e g 3 showing temperature 3 running conditions on the display 3 Probes incorrectly connected 3 Check connections If the cabinet temperature is OK Compressor Cut in and Cut Cabinet running on minimum running there is no need for service outs not following Set value time Lon and minimum stop time If the products is too cold raise and the differential CoFF the set value and if necessary increase the differential Parameter values not possible m to set as whole numbers Controller malfunction Change controller e eg 1 0 2 0 3 0 and so on kb e AS Light swit 250V 50Hz DE Compressor Condensor fan 7 Defrost heater Floating microswitch 9 Heaterrod for water 10 Controller 11 Control probe n p ce
10. f 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 3 The following waste must be stored of separately from other wastes as they are hazardous to the environment refrigerants polyurethane foam 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 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 compe
11. he group 2 values are only used on selected models Service Menu Settings folder Set SetC Parameter List Set point value group for user menu 1 and 2 UloC Keyboard Lock Locks the controller and disables the user menu and manual defrost 511 Set Point Value Set point for the first control settings SL1 Lower Set Limit Minimum temperature set point for the first control settings SH1 Upper Set Limit Maximum temperature set point for the first control settings C1 Compressor Mode 1 One compressor 1 Two compressors 3 Compressor Cycling If more than one compressor is fitted both will run until the setpoint value is reached After this the compressor with the most operating hours stops When the cabinet temperature rises and reaches the restart temperature both compressors will run St2 Set Point Value oet point for the second control settings SL2 Lower Set Limit Minimum temperature set point for the second control settings SH2 Upper Set Limit Maximum temperature set point for the second control settings C2 Compressor Mode 1 One compressor 1 Two compressors 3 Compressor Cycling If more than one compressor is fitted both will run until the setpoint value is reached After this the compressor with the most operating hours stops When the cabinet temperature rises and reaches the restart temperature both compressors will run Defrost synchronization Probe folder SEn SC Amount of Probes The number of probes fitted to th
12. hould be 0 2m s Probes The probes used are PT 1000 with rating at 0 C of 1000 Ohms There is not a temperature range but the resistance value is approximately 950 Ohms at 10 C and 1200 at 50 C Case Faults and Possible Solutions No ProHlem j PossbleCausee 20 Display Shows Probe Failure Probe with the same number broken or has a bad connection 1 2 Thermostat Probe 2 Defrost Probe 3 Cabinet Probe 4 Condenser Overheat Probe 5 Condenser Overheat Probe Check connection or change probe DO GENE Ero Indicates dirty condenser or Check Clean condenser 2 lights are off condenser motor failure Change fan motor L Condenser Ovarhoat Alarm Condenser blocked or cabinet to Check for sufficient clearance at close to the wall rear of machine Display Shows Off Check Condenser cleanliness Cabinet shut down due to MN Ee m le Check condenser fan motor and condenser overheat refrigerant circuit function 1 Change parameter C2Pd to 4 1 Parameter C2Pd in SEn folder set wrong Value should be 4 when cabinet with 1 condenser 24 probes NOTE Off text appears with 1 2 min delay after starting up the cabinet Display shows off when 2 Parameter Sdt shut down delay is plugging in the cabinet after set to 0 min NOTE Off text appears changing the controller directly after starting up the cabinet 2 Change parameter Sdt to 1 3 Probe 4 or 5 broken or badly 3 Change probe s 4 or 5 Check
13. is model dISP Local Display Allows the selection of a particular probe temperature to be displayed on the controller 1 Thermostat probe 2 Evaporator probe 3 Cabinet probe 4 and 5 Condenser alarm probes dECP Resolution Allows for a decimal point to be displayed 0 Not in use 1 in use FC Filter Factor This is a constant parameter used to stabilise the reading shown on the display The value is always the same and it keeps the readings stabile OFFS Display Temperature Offset Allows for the cabinet probe and LCD display to be adjusted up or down to suit certain site requirements Condenser Overheat Probe 1 oelects the probe used C2PD Condenser Overheat Probe 1 Selects the probe used Compressor Folder CP d L on H on oFFt CoFF rAtE 2dlF Defrost Mode Selects the type of defrost used 0 Electrical Defrost 1 Hot gas defrost Min Working Time Minimum working time for the compressor Max Working Time Maximum working time for the compressor Compressor off time Compressor off time if maximum working time H on is achieved Min Down Time Minimum down time of compressor Cooling Rate Percentage of the cooling frequency in probe failure Compressor Difference Not used Condenser Overheat Folder OH AL Alt sd Sdt Alarm Temperature Temperature at which the condenser alarm will be activated Alarm Temperature Delay Time in minutes that the alarm will be delayed Sh
14. tence 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 surface water to soil DISPOSAL REQUIREMENTS 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 User Operation Guidelines Controller Start Up The cabinet is pre set at the factory to operate in normal ambient conditions and maintain the temperature in the cabinet at 1 2 degrees Checking the temperature settings Check the setpoint by pressing the FNC key briefly Sett will be displayed press the OK Key the setpoint value will displayed Press the FNC key to return to normal temperature view or leave for 5 minutes to return automatically Defrosting The cabinet will automatically defrost 6 times per day and when on defrost the controller will display On completion the display will change to 1 until the normal operating temperature is achieved Alarms and Warnings m i Thermostat probe failure Call your Foster Authorised Service Company Evaporator probe failure Call your Foster Authorised Service Company Air probe temperature failure Call your Foster Authorised Service
15. the user menu use the UP or DOWN keys to scroll through and press OK to display the value oee the cabinet parameters on page 4 for the correct settings Service Access and Parameters To access press and hold OK for 5 seconds and the display will show 0000 The password is 1953 Set the first number by using the UP or DOWN key once selected press OK to move to the next number Once the number is completed correctly press OK to access the parameters and use the UP and DOWN keys to change the values Once the change has been completed press OK to move to the next parameter Parameter Definitions Set Point values for group 1 folder St1 St Set point value The set point value for the first set of control parameters Differential The temperature difference for the stopping and starting of the compressor Must be a positive value Time interval between defrosts dEt1 Maximum duration of defrost dSt1 Temperature at which the defrost is terminated dt1 Drying time after the termination of a defrost Set Point values for group 2 folder St2 512 Set point value The set point value for the first set of control parameters dIF2 Differential The temperature difference for the stopping and starting of the compressor Must be a positive value DIt2 Time interval between defrosts dEt2 Maximum duration of defrost dSt2 Temperature at which the defrost is terminated dt2 Drying time after the termination of a defrost T
16. utdown Temperature Temperature at which the cabinet turns itself off due to high condenser temperature Shutdown Temperature Delay Time delay before the cabinet shuts down due to too high condenser temperature Net Folder nEt CAL1 Device Identification Thermostat Probe Calibration Calibration according to factory test run Standard Setting Folder SdFt Press OK to restore the controller to the standard settings NOTE not the cabinet s factory settings Foster Display Case Parameter Settings NRC100 Slim Slim Slim Default dis ik m FS70 FS90 FS120 1 0 15 08 HW HW HW _ 20 00 4444 44 Temperature Set Point 1 LDrainDown Time ee Temperature Set Point 2 if in use ST 002002044444 SetPoint Vae 1050 s2 0 1114 4 Differential2 d C 111114114 oo LY Defrostintevval2 H dt 6 111114114 4 Maximum Defrost Duration2 2 Defrost End 2 C dSt2 1 117111114 ____ o LDrainDown Time 2 52 195 rr ServiceMenu Settings Folder O SED Parameter e gt eee EE 3L 42 57 Compressor Mode i
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