Foster HR80MF Service Manual
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Foster HR80MF Service Manual

Milk fridge, bit25 controller & lcd5s display
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Milk Fridge
HR80MF Models
Bit25 Controller & LCD5S Display
English
ISO 9001
November 2014 Version 1
ISO 14001
By Appointment to
Her Majesty Queen Elizabeth II
Suppliers of Commercial Refrigeration
Foster Refrigerator, King's Lynn
A Division of ITW Ltd
Foster Refrigerator,
Oldmedow Road,
King's Lynn,
Norfolk, PE30 4JU
United Kingdom
1

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Summary of Contents for Foster HR80MF

  • Page 1 By Appointment to Her Majesty Queen Elizabeth II Suppliers of Commercial Refrigeration Foster Refrigerator, King’s Lynn Milk Fridge HR80MF Models Bit25 Controller & LCD5S Display English A Division of ITW Ltd Foster Refrigerator, Oldmedow Road, King’s Lynn, Norfolk, PE30 4JU...
  • Page 2 Contents Page Manual Information & Health & Safety Notes Environmental Management Policy Disposal Requirements & Electrical Safety Displays Icons & Switches BIT25 User Functions - Start Up, Set Point, Standby, Key Security & Defrost Function BIT25 Controller Connection Drawing & Configuration of Parameters BIT25 Controller Default Parameters Model Temperature Specific Parameters 10.11...

  • Page 3: Environmental Management Policy

    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.
  • Page 4 Controller Operation - BIT25 The controller consists of two pieces, the controller (BIT25) and separate display (LCD5S). The display is positioned inside the cabinet and the controller at the rear. LCD5S Display Icons and Switches Display Indicators & Buttons Alarms/ Warnings During Normal Operation Info/ Set Point Button Controller in Standby Manual Defrost/ Decrease Button...

  • Page 5: Keypad Unlock

    Set point: Display and modification > Press button and hold to display the set point. > By keeping button pressed, use button to set the desired value (adjustment is within the minimum SPL and the maximum SPH limit) > When button is released, the new value is stored.

  • Page 6: Controller Technical Data

    Controller Technical Data Power Supply Operating Conditions BIT25 ... E 230Vac±10%, 50/60Hz, 3W -10…+50°C; 15%...80%r.H Relay Output CE (Reference norms) Compressor 20(8)A 240Vac Auxiliary Loads 1 16(4)A 240Vac EN55022 (Class B) Auxiliary Loads 2 7(2)A 240Vac EN50082-1 Input NTC 10KΩ@25°C Measurement Range Measurement Accuracy -50 / -9.9…19.9 /110°C...
  • Page 7 BIT25 Controller Default Parameter Values Default Parameter Range Description Setting -50 … SPH Minimum limit for 'SP' setting. SPL … 110° Maximum limit for 'SP' setting. SPL … SPH Temperature setpoint to be achieved. REF or HEA Refrigeration or Heating control mode. 1 …...

  • Page 8: Parameter Range

    Default Parameter Range Description Setting Evaporator fan mode during thermostatic control: Fan(s) run continuously (subject to door & defrost). Temperature based control. When compressor is on, fans are on. When compressor is off, fans run as long as temperature difference Te-Ta > ‘FDT’. Fans on again with ‘FDH’. Time based control.
  • Page 9 Default Parameter Range Description Setting -50 … 110° Condenser alarm temperature (if 'DI2' = 'T3'). Condenser cleaning period. ‘0 … 52 weeks (With ‘ACC’ = ‘0’ condenser cleaning alarm is disabled). Switch over method to second parameter set: Second parameter set is excluded (the following parameter will be 'SB'). IISM Second parameter set is activated / deactivated by button 'M'.
  • Page 10 Default Parameter Range Description Setting Potentiometer standby enabling operation (only when 'DI2' = 'PSP'): Potentiometer standby enabled (when turned to minimum, controller set to standby). Potentiometer standby disabled. Light control mode (if 'OA1' = 'LGT'): Light Control Mode disabled (always off). Light output operation is activated / deactivated by button 'M'.
  • Page 11 HR80MF Specific Parameter Values Controller Parameter Parameter Description HR80MF Default Minimum limit for 'SP' setting. Maximum limit for 'SP' setting. Temperature setpoint to be achieved. Refrigeration/ heating control mode. Off / On thermostat differential. Compressor rest time. Thermostat run time with faulty T1 probe.

  • Page 12: Parameter Description

    Controller Parameter Description HR80MF Default IISH Maximum limit for 'IISP' setting. IISP Temperature setpoint to be achieved in 'Mode 2'. IIHY Off / On thermostat differential in 'Mode 2'. IIFC Evaporator fan mode during 'Mode 2' thermostatic control. IIDF Time interval between defrosts in 'Mode 2'.

  • Page 14: Troubleshooting

    Troubleshooting Problem Possible Cause Solution No voltage in socket Use voltmeter to check Electrical conductor or wires may be Use ohmmeter to check for continuity Defective electrical component; thermostat, relay, thermal protector Replace defective component etc. Measure ohmic resistance of main Compressor motor has a winding and auxiliary winding using open or shorted...
  • Page 15 Check to see if condensation or ice The refrigerator has been crystals have formed on the suction overcharged with the refrigerant gas line. If so, charge with the correct amount of gas Find the location of gas leak in order to seal and replace the defective The refrigerant gas is leaking component.
  • Page 16 Excessive amount of warm product Advise user to leave adequate time placed in cabinet for products to cool down Advise user to ensure doors are closed when not in use and to avoid Prolonged door opening or door ajar opening doors for long periods of time Ensure gaskets are snapped in completely.
  • Page 17 Page Left Blank Intentionally...
  • Page 18 Tel: +44 (0)843 216 8833 Fax: +44 (0)843 216 4707 Email: support@foster-uk.com Website: www.fosterrefrigerator.co.uk 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...

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