Foster RBC20-60 Service Service Manual

Text of Foster RBC20-60 Service User Guide:

• Foster RBC20-60 Service, 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 3 (Pre-chill, Soft Chill, Hard Chill, Hard Chill Max, Shock Freeze, Professional 1, Professional 2, or Professional 3). The availability of these is dependent on how the controller has been configured. The example shows the controller in Hard Chill mode with the previous and next programs

• Foster RBC20-60 Service, 11 P86 Alarm Buzzer Function NO YES NO P87 Air Probe Offset °K -15 15 0 P88 Coil Probe Offset °K -15 15 0 P89 Food 1 Offset °K -15 15 0 P90 Food 2 Enable Function NO YES NO P91 Food 2 Offset °K -15 15 0 P92 Food 3 Enable Function NO YES NO P93 Food 3 Offset °K -15 15 0 P94 Address Integer 1 255 255 Parameter Definitions Pre-Chill P01 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. Range -15°C to 15°C. P02 Chill Time The period Pre-Chill is in the chill mode prio

• Foster RBC20-60 Service, 12 P13 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 P14 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. Range -20°C to 15°C. P15 Chill Time The period Hard Chill Max program is in chill mode prior to entering Hold mode in a time based chill cycle. Range 5 minutes to 480 minutes. P1

• Foster RBC20-60 Service, 13 P27 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. Range -20°C to -5°C. P28 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 1 program, prior to entering the Hold mode of a temperature based cycle, which it can be adjusted to by the operator. Range -5°C to -15°C. P29 Hold Temp Std The standard

• Foster RBC20-60 Service, 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. During the final ten seconds the alarm is sounded to indicate the end of the test. The graph below shows how the relays are energised relating to time. The air, coil and food temperature probes are disregarded (the only exception is an over temperature alarm). Operation Summary All relays co

• 20 Technical Data RBC20-60 RBC20-60R Nominal Chilling Capacity 60Kg 60Kg Duty @ -15°C 3800w 3800w Fans 3 3 Evaporating Temperature -15°C -15°C HP Switch Setting Refrigerant Control TEV TEV Refrigerant R404a R404a Refrigerant Quantity System 1 1900grms System 2 1900grms Electrical Supply 400/3/50 – 16amp 230/1/50 13 amp (Fans & De

• Foster RBC20-60 Service, 10 HARD MAX P14 AIR TEMP °C -20 15 -15 P15 Chill Time MINUTES 5 480 90 P16 CHILL TEMP °C -15 15 3 P17 HOLD TEMP °C -15 15 3 SHOCK FREEZE P18 AIR TEMP °C -35 15 -30 P19 CHILL TIME MINUTES 5 480 240 P20 CHILL TEMP °C -35 15 -21 P21 HOLD TEMP °C -35 15 -21 PROFFESSIONAL 1 P22 Air Temp. Std. °C -20 15 -15 P23 Chill Time Std. Minutes P24 P25 90 P24 Chill Time Minimum Minutes 5 60 5 P25 Chill Time Maximum Minutes 60 480 240 P26 Chill Temp. Std. °C P27 P28 3 P27 Chill Temp. Minimum °C -20 -5 -10 P28 Chill Temp. Maximum °C -5 15 5 P29 Hold Temp. Std. °C

• Foster RBC20-60 Service, 1 Contents Page Introduction 1 to 2 Model Details 2 Controller Technical Detail 2 Parts List 2 Operating Instructions 3 to 6 Electrical Connections 7 Service Information 7 to 19 Diagnostics 8 Function Test 8 Passcode 8 Profiles 9 Parameter Access 9 Parameters 9 to 11 Parameter Definitions 11 to 18 Alarms and Warnings 18 Foot Print Test Operation 19 Probes 19 Technical Data 20 to 22 Wiring Diagrams 23 to Introduction. Cook Chill Operation. Blast chilling is a process to reduce the temperature of cooked food by swiftly arresting the cooking process, locking in its colour, flavour, te

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

• Foster RBC20-60 Service, 17 NO = No safety door switch fitted. YES = Safety door switch fitted. Note: Usually fitted to the evaporator fan door on Modular Blast Chillers. P79 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. Also used to initiate the controller from the energy saving mode. NO = No door switch fitted. YES = Door switch fitted. P80 Door Stop The delay period between the

• Foster RBC20-60 Service, 4 Foster European Operations rance oster Refrigerator France SA el: (33) 01 34 30 22 22 Fax: (33) 01 30 37 68 74 Email: [email protected] F F T Germany oster Refrigerator Germany el: (0781) 96 93 00 Fax: (0781) 96 93 019 Email: [email protected] F T oster Refrigerator ldmedow Road, King’s Lynn, orfolk Pe30 4JU ngland el: 01553 691122 ax: 01553 691447 ebsite: www.fosterrifrigerator.co.uk F O N E T F W Email

• Foster RBC20-60 Service, 6 High Temperature: This alarm will only occur in the hold mode only. Probe the product to determine it is at the correct temperature. 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. HP Switch: Causes for this alarm could be: Does the

• Foster RBC20-60 Service, 4 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. Defrost. Defrosting is not normally required but if there is an ice build up on the coil inside the cabinet a manual defrost can be selected. Rotate the dial until the Defrost screen, below left, is di

• Foster RBC20-60 Service, 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

• Foster RBC20-60 Service, NO = No third food probe fitted. YES = Third food probe fitted. P93 Food 3 Offset Allows the value of Food Probe 3 to be offset allowing for the product temperature to be accurately measured. Range -15°C to +15°C. P94 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. The cabinet will attempt to continue running or to finish the

• Foster RBC20-60 Service, 15 P53 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. P54 Hold Temp Minimum The minimum value that the Hold temperature set point can be adjusted to by the operator in the Professional 3 program. Range -10°C to 0°C. P55 Hold Temp Maximum The maximum value that the Hold temperature set point can be adjusted to by the operator in the Professional 3 program. Range 0°C to 10°C. P56 Change Time The percentage period of a time based chill cycle, which is to have passed before automatically adjusting the air temperature set

• Foster RBC20-60 Service, 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. These programs are all available depending upon which of the profiles are selected, see below. To change the profile rotate the dial to select program, press and release the dial to accept the change. The 3 chevrons i

• 14 P40 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. Range -5°C to -15°C. P41 Hold Temp Std The standard temperature,

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