Foster RBC20-60 Service Manual
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Foster RBC20-60 Service Manual

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RBC20-60
Blast Chiller

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Summary of Contents for Foster RBC20-60

  • Page 1 RBC20-60 Blast Chiller...

  • Page 2: Table Of Contents

    Contents Page Introduction 1 to 2 Model Details Controller Technical Detail Parts List Operating Instructions 3 to 6 Electrical Connections Service Information 7 to 19 Diagnostics Function Test Passcode Profiles Parameter Access Parameters 9 to 11 Parameter Definitions 11 to 18 Alarms and Warnings Foot Print Test Operation Probes...

  • Page 3: Model Details

    The controller will determine the temperature to be maintained during the hold phase based on the chilling cycle that has been completed. If a soft or hard chill has taken place the controller will maintain an air temperature of 2°c. The hold mode is principally intended as a temporary storage facility offering the operator flexibility until the product can be unloaded into a longer term storage units at the correct storage temperature.
  • Page 4 Blast Chill & Shock Freeze Operating Instructions. Standard Operation When mains electrical power is first applied to the controller it will carry out a self-test function, for approximately 3 seconds. During this period the display will show. On completion of the self test, the controller will revert to the last chill program that was run (Pre-chill, Soft Chill, Hard Chill, Hard Chill Max, Shock Freeze, Professional 1, Professional 2, or Professional 3).
  • Page 5 Pre Chill This program is used to Pre Chill the cabinet prior to the first cycle. This is done with the Blast Chiller empty and is a short time based program of about 20 minutes. It is generally recognised as the correct method of preparing for a blast chill cycle. The program is selected by rotating the dial until the display shows, press and release the dial to start the program.
  • Page 6 Food Probe: If this alarm occurs it will automatically change to a timed program until it is completed, however no further operation will be possible. Call your Foster Authorised Service Company. Door Open: The display will continue to show the alarm message until the door is closed. If this does not cancel the...
  • Page 7 If it is at the correct temperature place in a storage refrigerator or freezer and call your Foster Authorised Service Company. If the product temperature is above the guidelines check the chill time selected or the weight of product being chilled does not exceed the specification for the Cabinet.

  • Page 8: Electrical Connections

    Electrical Connections. Inputs. Mains ‘Live’ supply (115V 230V, 50Hz / 60Hz). 4 terminals. Mains ‘Neutral’ supply – 16 terminals. Protective Earth – 16 terminals. DOOR Door Switching connection (not voltage carrying). DOOR2 Safety door switch connection (not voltage carrying). High Pressure switch connection (not voltage carrying). Air probe connection.

  • Page 9: Diagnostics

    Diagnostics Rotate the dial until you reach ‘Diagnostics’, below left, press and release the dial to highlight the component. In this program you can test each of the major components on the machine in sequence, 1- COMPRESSOR, 2-FAN1, 3-FAN2, 4- DEFROST, 5- ALARM, 6- CCAP (Capacity Control), 7- UV-L (UV light if fitted), ESC (escape). Rotate the dial until the relay output is highlighted, once selected press and the dial to test the relay, the relay will remain energised for as long as it is pressed.

  • Page 10: Profiles

    Profiles. You are now in the program profiles. The controller has 9 operating programs – Pre Chill, Soft Chill, Hard Chill, Hard Chill Max, Shock Freeze, Professional 1, Professional 2, Professional 3, Defrost and 2 optional programs – UV Sanitisation and Information.
  • Page 11 HARD MAX AIR TEMP °C Chill Time MINUTES CHILL TEMP °C HOLD TEMP °C SHOCK FREEZE AIR TEMP °C CHILL TIME MINUTES CHILL TEMP °C HOLD TEMP °C PROFFESSIONAL 1 Air Temp. Std. °C Chill Time Std. Minutes Chill Time Minimum Minutes Chill Time Maximum Minutes...
  • Page 12 Alarm Buzzer Function Air Probe Offset °K Coil Probe Offset °K Food 1 Offset °K Food 2 Enable Function Food 2 Offset °K Food 3 Enable Function Food 3 Offset °K Address Integer Parameter Definitions Pre-Chill Pre-Chill Enable The air temperature, which the air probe must read before the condensing system is de-energised in the chill mode of the Pre-Chill Program.
  • Page 13 Change Temp The percentage of a temperature based chill cycle, which is passed before automatically adjusting the air temperature set point to 1°C.The range is adjustable in 5% increments. Range 5% to 95%. Hard Max Air Temp The temperature, which the air probe must read before the condensing system is de-energised in the chill mode of the Hard Chill Max Program.
  • Page 14 Chill Temp Minimum The minimum value that the temperature, which Food Probe 1 must read before the condensing system is de- energised in the chill mode of the Professional 1 program, prior to entering the Hold mode of a temperature based cycle, which it can be adjusted to by the operator.
  • Page 15 Chill Temp Maximum The maximum value that the temperature, which Food Probe 1 must read before the condensing system is de- energised in the chill mode of the Professional 2 program, prior to entering the Hold mode of a temperature based cycle, which it can be adjusted to by the operator.
  • Page 16 Hold Temp Std The standard temperature, which the air probe must read before the condensing system is de-energised in the Hold mode of the Professional 3 Program. Range -15°C to 15°C. Hold Temp Minimum The minimum value that the Hold temperature set point can be adjusted to by the operator in the Professional 3 program.
  • Page 17 Note: The fan 1 hold operation does not effect routine defrost operation. FAN 2 Hold Operation Determines the evaporator fan relay energisation during ‘Hold’ mode. ‘OFF’ = Evaporator fan 2 relay is not energised in ‘Hold’. ‘CYCLE’ = Evaporator fan 2 relay cycles with condensing system relay in ‘Hold’. ‘AUTO’...
  • Page 18 NO = No safety door switch fitted. YES = Safety door switch fitted. Note: Usually fitted to the evaporator fan door on Modular Blast Chillers. Door Switch 1 Determines if a door switch is fitted or not, and consequently dictates Evaporator Fan operation, UV Sanitisation operation and door alarm activation’s.

  • Page 19: Alarms And Warnings

    Address The controller peripheral number. This is only necessary when controller are linked via a network to a computer management and data recording system (such as with the Foster TAB or ARGO systems). Range 00 to 255. Alarm and Warnings In general if an alarm occurs the appropriate alarm symbol will be displayed and the alarm will sound to attract attention.

  • Page 20: Foot Print Test Operation

    Foot Print Test operation The foot print test is a method of checking the operation of the process in a reduced time period The foot print test takes ten minutes. The first ten seconds are used for the display test, after that the relays are energised in a simple operating pattern to ensure each are energised.
  • Page 21 Technical Data RBC20-60R RBC20-60 Nominal Chilling Capacity 60Kg 60Kg Duty @ -15°C 3800w 3800w Fans Evaporating Temperature -15°C -15°C HP Switch Setting Refrigerant Control Refrigerant R404a R404a Refrigerant Quantity System 1 1900grms System 2 1900grms Electrical Supply 400/3/50 – 16amp 230/1/50 13 amp (Fans &...
  • Page 22 SERVICE PLATE SYSTEM 1 & SYSTEM 2 PHIALS MUST BE FITTED IN THE HORIZONTAL POSITION AND CORK TAPED FAN PLATE EVAPORATOR ASSEMBLY RBC20-60...
  • Page 23 LP SW. PHIAL COMPRESSOR PHIAL LP SW. COMPRESSOR STAT CONDENSER - DUAL CIRCUIT EVAPORATOR – DUAL CIRCUIT HP SW. SIGHT SOL. DRIER EXP. VALVE LIQUID RECEIVER GLASS VALVE EQUALISING LINE HP SW. EXP. VALVE SIGHT SOL. DRIER LIQUID RECEIVER GLASS VALVE EQUALISING LINE Schematic Dual Circuit Refrigeration Layout...
  • Page 24 COMPRESSOR WIRING RBC20-60...
  • Page 25 RBC20-60 1 of 2 Wiring Diagram...
  • Page 26 RBC20-60 2 of 2 Wiring Diagram...
  • Page 27 RBC20-60R 1 of 2 Wiring Diagram...
  • Page 28 RBC20-60R 2 of 2 Wiring Diagram...
  • Page 32 Foster European Operations rance oster Refrigerator France SA el: (33) 01 34 30 22 22 Fax: (33) 01 30 37 68 74 Email: info@fosterfrance.com Germany oster Refrigerator Germany el: (0781) 96 93 00 Fax: (0781) 96 93 019 Email: info@fosterrefrigerator.de oster Refrigerator ldmedow Road, King’s Lynn,...

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