Foster HR 100, HR 120, HR 150-A, HR 200, HR 240, HR 360, HR B120, HR 200FT, HR 360FT, LR 120, LR 150-A, LR 200, LR 240, LR 360, LR B120 Undercounter Cabinet Service Manual

Undercounter Cabinets,

Space Savers &

Prep Tables with

BIT25 Controller &

LCD5S Display

ISO 9001 ISO 14001

Issued December 2011

Contents

Manual Information & Health & Safety Notes

Environmental Management Policy

Disposal Requirements

Cabinets Description & 1 st

Serial Numbers

Controller Description, Operation & Diagram

Individual Unit Temperatures & Capacities

Controller Wiring Diagram, dimensions & Technical

Configuration of & Parameters lists

Parts Replacement Instructions for HR/LR 150

Technical Specification

Wiring Diagrams

Troubleshooting & Notes

1

2

2

3

4 to 6

7

8

9 to 15

16 to 20

21 to 22

23

24 to 26

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 & 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.

During maintenance and cleaning, please unplug the unit where required.

Care must be taken when handling or working on the unit as sharp edges may cause personal injury, we recommend the wearing of suitable PPE.

E nsure the correct moving and lifting procedures are 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

(PPE) are used for you own safety.

1

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 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 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. 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 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 spills, and are not disposed of into storm drains, foul drain, or 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.

2

Cabinet Descriptions

All Ranges - The cabinets are manufactured as a one piece foamed shell with the condensing unit located on the base of the cabinet. All the cabinets conform to ISO Climate Class 4 (32

° c with 40% RH) and have their temperature controller by a LAE microprocessor controller with digital temperature display.

Undercounter - The doors are fitted with pivot hinges, integral door handle situated at the front centre and magnetic door gasket. All models are fitted with 4mm roller castors to the rear and M8 adjustable levelling bolts at the front.

On the glass door models the interior light is fitted to the top of the storage area at the front. The on/off switch is incorporated into the light.

Prep Tables

– The doors are the same as the above undercounter but these units also combine a worktop for food prep with a back section that holds pans for food with a hygienic stainless cover.

Space Savers

– Are the same as the undercounter range but as the title describes are made for the kitchen without a lot of space and or tight areas.

HR and LR 120, 200, 240 and 360 models refrigeration systems are integral with an air-cooled condensing unit.

The refrigerant is distributed into the evaporator which is controlled by a capillary. All these units have forced air cooling which is where the air is circulated through the evaporator, via the fan/s then into the storage area. The

HR150-A also have forced air cooling but instead the air is drawn over the evaporator and then in to the storage area.

The HR150-A refrigeration system is also integral with an air-cooled compressor and static condenser where the refrigerant is distributed into the evaporator controlled by a capillary.

The LR150-A model has static freezer shelves with circulation in the storage compartment by natural convection.

This means they also require manual defrosting.

The HR150-A, 200 and LR200 condensate vaporisation is provided by a self-contained condensation vaporiser tray attached to the top of the compressor.

The LR120, 200, 240 and 360 have electric defrost set at 4 times per 24 hours, whereas the HR120, 150-A, 200,

240 and 360 are on a timed off cycle defrost.

Bit25 Controller Introduction by Models

Model 1 st

Serial Number Issued Manufacturer Date from

100 (H - Burger King Only Spec)

120 (H,L & Broadway)

150-A (H&L)

200 & 200FT (H&L)

240 (H&L)

360 & 360FT (H&L)

Unknown

E5306481 & E5306484

E5307001

E530587 & E5305856

E5307002

November 2011

October 2011

October 2011

November 2011

October 2011

3

Controller Operation

The controller consists of two pieces, the controller & separate display. This two piece controller has the controller/PCB unit fitted at the rear of the cabinet with the display fitted into the front of the cabinet, interconnected by a ribbon cable.

BIT25 Controller PCB (00-556354)

LCD 5S Display (00-555992)

Controller Connection Cable (00-556415)

BIT25 Controller/PCB Cover/Housing (00-556361)

Probe Air T1 (00-556376)

Probe Evap T2 (00-556356)

LCD 5S Display (00-555992)

Indicators and Buttons

Symbol Reason Button Use

Alarm Info / Set Point Button

Thermostat Output Manual Defrost / Decrease Button

Fan Output Increase Button / Manual Activation

Defrost Output

Activation of 2 nd

parameter set

Exit/ Stand-by Button

Display

During normal operation the display shows either the temperature measured or one of the following indicators:

Symbol Reason

Defrost in progress

Controller in stand-by

Condenser clean warning

Door open alarm

Condenser high temperature alarm

Generic Alarm

Information Menu

The information available in the menu is shown below:

Symbol Reason

Condenser High Pressure Alarm

Internal High temperature Alarm

Internal Low Temperature Alarm

Probe T1 Failure

Probe T2 Failure

Symbol Reason

Instant probe 1 temperature

Instant probe 2 temperature *

Instant probe 3 temperature *

Maximum probe 1 temperature recorded

* Displayed only if enabled (see configuration parameters)

** Displayed only if ACC > 0

Symbol

4

Reason

Minimum probe 1 temperature recorded

Compressor working weeks **

Keypad state lock

User Functions

Start Sequence

When the unit is first connected to the mains the display will automatically light up and show either current ambient temperature.

To start or activate when in standby:

Press and hold the button for 5 seconds then release.

Access to the menu and information displayed

or the

Press and immediately release button

With button or select the data to be displayed

Press and hold button to display the value

To exit from the menu, press button or wait for 10 seconds.

Set point: Display and modification

Press button and hold to display the set point.

By keeping button pressed, use button or 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.

Standby

When pressing the button for 3 seconds, will allow the controller to be put on a standby or output control to be resumed (with SB = YES only).

When on Standby

Keypad Lock

will be displayed.

The keypad lock avoids undesired, potentially dangerous operations, which might be attempted when the controller is operating in a public place. In the INFO menu, set parameter = YES to inhibit all functions of the button.

To resume normal operation of keypad, adjust setting so that = NO.

Selection of second parameter group

It is possible to select control parameters between two different pre-programmed groups, in order for the fundamental control parameters to be adapted to changing needs. Changeover from Group I to Group II (and vice versa) may take place Manually by pressing

II°

for 2 seconds (with IISM = MAN), or Automatically when

IISM=D12 and the Auxiliary Input D12 is activated (the activation of D12 selects Group II). If IISM = NON, switchover to Group II is inhibited. The activation of Group II is signalled by the lighting up of relevant LED on the controller display.

Defrost

Automatic Defrost

– excluding LR150 & LR410

Defrost starts automatically as soon as the time set with parameter DFT has elapsed.

Time Defrost With DFM = TIM defrost takes place at regular intervals when the timer reaches the value

DFT. For example, with DFM = TIM and DFT = 06, a defrost will take place every 6 hours.

Optimized Defrost With DFM=FRO the timer is increased only when the condition for frost to form in the evaporator occurs. Once the DFT value is reached, defrost takes place. If the evaporator works at 0°C, defrost frequency depends on the thermal load and climatic conditions. With setpoints much lower than

0°C, defrost frequency mainly depends on the refrigerator operating time.

Defrost time count backup At the power

–up, if DFB = YES, the defrost timer resumes the time count from where it was left off before the power interruption. Visa versa with DFB=NO, the time count re-starts from

0. In stand-by the accumulated time count is frozen.

Defrost type

Once defrost has started, compressor and defrost outputs are controlled according to parameter DTY. If FID =YES, the evaporator fans are active during defrost.

5

Defrost Termination

Time termination

– T2=NO the evaporator temperature is not monitored and defrost will last as long as time DTO.

Temperature termination

– T2=YES In this case, if the sensor T2 measures the temperature DLI before the time

DTO elapses, defrost will be terminated in advance.

Resuming Thermostatic Cycle

When defrost is over, if DRN is greater than 0, all outputs will remain off the DRN minutes, in order for the ice to melt completely and the resulting water to drain. The fans will only re-start when the evaporator temperature is lower than FDD (if T2=YES), or after FTO minutes have elapsed.

Caution- if DFM=NON all defrost functions are inhibited; if DFT=0, automatic defrost functions are excluded; during a high pressure alarm or a DI1 (DI2) generic alarm, defrost is suspended; during defrost, high temperature alarm is bypassed.

Manual Defrost

-

‘LR150’ and ‘LR410’’ Freezer Shelves

To initiate a manual defrost press and hold the defrost button for 2 seconds.

All other ‘Under-Counter’ and ‘Space-Saver’ models are fitted with a fully automatic defrost system to ensure that the evaporator remains free from ice in normal use. Melt-water is evaporated using the heat from the refrigeration system.”

6

Controller Wiring Diagram, Dimensions & Technical Data

(Dimensions in mm)

Technical Data

Power Supply

BIT-

25…E

Relay Output

Compressor

230Vac±10%, 50/60Hz, 3W

20(8)A 240Vac

Auxiliary Loads 1

Auxiliary Loads 2

Input

NTC 10K

Ω@25°C

16(4)A 240Vac

7(2)A 240Vac

Measurement Range

--50 / -

9.9…19.9 /110°C

Measurement Accuracy

<0.5°C within the measurement range

7

Operating Conditions

-

10…+50°C; 15%...80%r.H

CE (Reference norms)

EN60730-1; EN60730-2-9

EN55022 (Class B)

EN50082-1

Configuration Parameters

To get access to the parameter configuration menu, press + for 5 seconds

With button or select the parameter to be modified.

Press button and hold briefly to display the value. On releasing the button the controller will then show the next parameter.

By keeping button pressed, use button or to set the desired value. On releasing the button the controller will store the amended value and then show the next parameter.

To exit from the setup, press button or wait for 30 seconds.

Default Controller Parameter Settings

Parameter:

SPL

SPH

SP

Range: Description:

-

50 … SPH

Minimum limit for 'SP' setting.

S

PL … 110 o

Maximum limit for 'SP' setting.

SPL … SPH

Temperature setpoint to be achieved.

C-H

HYS

CRT

CT1

REF - HEA

1 … 10 o

0 … 30 min

0 … 30 min

Refrigeration or Heating control mode.

Off / On thermostat differential.

Compressor rest time.

Thermostat run time with faulty T1 probe.

('CT1' = 0 output with faulty T1 will always be off).

CT2

CSD

DFM

DFT

DFB

DLI

DTO

DTY

DPD

DRN

DDM

0 … 30 min

0 … 30 min

Thermostat off time with faulty T1 probe.

('CT2' = '0' & 'CT1' =>'0' output with faulty T1 will always be on).

Compressor stop delay after door has been opened.

(Only if 'DS' = 'YES').

NON

TIM

Defrost start mode:

Defrost function is disabled (the following parameter will be 'FCM').

Regular time defrost.

FRO Defrost time elapses only in condition of frost accumulation.

0 … 99 hours

Time interval between defrosts.

YES

NO

Defrost timer clock.

Following mains interruption, timer resumes count.

Following mains interruption, timer restarts from zero.

-

50 … 110 o

Defrost end temperature

(Only if 'T2' = 'YES').

1 … 120 min

Maximum defrost duration.

Defrost type:

OFF

ELE

Timed off cycle defrost (compressor and heater off).

Electric heater defrost (compressor off, heater on).

GAS Hot gas defrost (compressor and heater on).

0 … 240 sec

Evaporator pump down. Timed pause at start of defrost.

0 … 30 min

Drain down period.

RT

LT

Defrost display mode:

Real (actual) air temperature.

Last temperature display before start of defrost.

SP

DEF

The current setpoint value.

"DEF"

Default

1

3

2

REF

3

2

6

4

1

TIM

6

YES

15

20

OFF

0

2

DEF

DDY

FID

FDD

FTO

FCM

FDT

FDH

FDS

FT1

FT2

FT3

ATM

ALA

AHA

ALR

AHR

ATI

ATD

ADO

0 … 60 min

-

YES

NO

50 … 110

NON o

0 … 120 min

TMP

TIM

Defrost display delay period.

Time 'DDM' is shown following defrost termination.

Fans in defrost:

Fans run during defrost.

Fans do not run during defrost.

Evaporator fan restart temperature following defrost.

(Only if 'T2' = 'YES').

Maximum evaporator fan stop period following defrost (only when

'T2' = 'YES').

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. When compressor is on, fans are on.

When compressor is off, fans in accordance to parameters

FT1', 'FT2' and 'FT3'.

-

12.0 … 0 o

Te-Ta difference for fans to turn off after compressor stopped.

(Only if 'T2' = 'YES' and 'FCM' = 'TMP').

1 … 12.0

o

Temperature differential for evaporator fan restart.

(Only if 'T2' = 'YES' and 'FCM' = 'TMP').

0 … 120 sec

Minimum evaporator fan stop period (following door opening etc.).

0 … 180 sec

Fan stop delay after compressor stop.

0 … 30 min

Timed fan stop following 'FT1'.

(With FT2 = '0' the fans remain on all the time).

0 … 30 min

NON

Timed fan run following 'FT2'.

(With 'FT3' = '0' & 'FT2' > '0' the fans remain off all the time).

Alarm threshold configuration:

All temperature alarms are inhibited (the following parameter will be

'ADO').

The value set in 'ALA' & 'AHA' represent actual alarm setpoints. ABS

REL

The values set in 'ALR' & 'AHR' are alarm differentials which relate to 'SP' and 'SP' + 'HYS' (the following parameter will be 'ALR').

-

-

50 … 120

50 … 120 o o

Low temperature alarm threshold.

High temperature alarm threshold (the following parameter will be

'ATI').

Low temperature alarm differential.

-

12 … 0 o

(With 'ALR' = '0' the low temperature alarm is excluded).

High temperature alarm differential.

0 … 12 o

(With 'AHR' = '0' the low temperature alarm is excluded).

Alarm probe:

T1 Air temperature probe used for alarm detection.

T2

Evaporator temperature probe used for alarm detection (if 'T2' =

'YES').

T3

Third temperature probe used for alarm detection (if 'DI2' = 'T3').

0 … 120 min

Delay before alarm temperature warning.

0 … 30 min

Delay before door open alarm warning (only when 'DI2' = 'DOR').

10

YES

NON

-1

2

REL

-3

8

-5

5

T1

90

8

3

20

15

0

5

3

9

AHM

AHT

ACC

IISM

SB

IISL

IISH

IISP

IIHY

IIFC

IIDF

NON

ALR

STP

-

50 … 110 o

Operation in case of high condenser alarm (if 'DI2' = 'T3' and 'T3' =

'CND' ):

High condenser temperature alarm inhibited.

Condenser warning - 'HC' displayed, alarm sounds.

As 'ALR', with compressor stopped and defrosts suspended.

Condenser alarm temperature (if 'DI2' = 'T3').

0 … 52 weeks

Condenser cleaning period.

(With 'ACC' = '0' condenser cleaning alarm is disabled).

NON

MAN

Switchover method to second parameter set:

Second parameter set is excluded (the following parameter will be

'SB').

Second parameter set is activated / deactivated by button 'M'.

DI2 Second parameter set activated by 'DI2' input ('DI2' = 'IISM').

-

50 … IISH

Minimum limit for 'IISP' setting.

IISL … 110 o

Maximum limit for 'IISP' setting.

IISP … IISH

Temperature setpoint to be achieved in 'Mode 2'.

1 … 10 o

Off / On thermostat differential in 'Mode 2'.

Evaporator fan mode during 'Mode 2' thermostatic control:

NON

TMP

Fan(s) run continuously.

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. When compressor is on, fans are on.

When compressor is off, fans in accordance to parameters TIM

FT1', 'FT2' and 'FT3'.

0 … 99 hours

Time interval between defrosts in 'Mode 2'.

YES

Standby button operation:

Standby button enabled.

DI1

NO

NON

DOR

ALO

ALC

NON

Standby button disabled.

Configurable digital input operation:

Digital input not activated.

Door switch input.

Alarm ('ALr' displayed) when contact opens.

Alarm ('ALr' displayed) when contact closes.

Configurable digital input operation:

Digital input not activated.

DI2

DOR

ALO

ALC

PSP

IISM

T3

DSP

Door switch input.

Alarm ('ALr' displayed) when contact opens.

Alarm ('ALr' displayed) when contact closes.

Allows control via potentiometer.

Operates 2 nd

parameter set when contact closes.

Allows for 3 rd

temperature probe function.

T3 probe function (only when 'DI2' = 'T3'):

T3 probe temperature displayed. T3

CND Condenser temperature measurement.

OS3 -

12.5 … 12.5

o

C T3 probe temperature offset (only when 'DI2' = 'T3'):

NON

65

0

NON

1

1

1

3

NON

6

YES

NON

NON

DSP

0

10

PSL

PSR

POF

LSM

OA1

OA2

OS1

-

50 … 70

NO

NON

MAN

D1O

D2O

D2C

NON

FAN o

0.0 … 15.0

YES

DEF

C o

C

Minimum setpoint adjusted by potentiometer (only when 'DI2' =

'PSP'):

Range of setpoint (hysteresis) for potentiometer (only when 'DI2' =

'PSP'):.

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'.

Light output is switched on when door is opened (if 'DI1' = 'DOR').

Light output is switched on when door is opened (if 'DI2' = 'DOR').

Light output is switched off when door is opened (if 'DI2' = 'DOR').

Auxiliary Relay 1 Operation:

Output disabled (always off).

Control of evaporator fan.

Control of defrost heater / device (activated when 'DTY' = 'ELE' or

'GAS').

Output enabled for light control. LGT

0-1

ALO

ALC

Contacts open/close with 'Standby'/'On' mode ('SB' = 'YES').

Contacts open when an alarm condition occurs.

Contacts close when an alarm condition occurs.

(Relay contacts open when in standby mode).

Auxiliary Relay 2 Operation:

NON Output disabled (always off).

FAN

DEF

Control of evaporator fan.

Control of defrost heater / device (activated when 'DTY' = 'ELE' or

'GAS').

Output enabled for light control. LGT

0-1

ALO

ALC

Contacts open/close with 'Standby'/'On' mode ('SB' = 'YES').

Contacts open when an alarm condition occurs.

Contacts close when an alarm condition occurs.

(Relay contacts open when in standby mode).

-

12.5 … 12.5

o

C Air temperature probe (T1) offset.

T2 probe enabling:

T2

OS2

TLD

SCL

SIM

ADR

YES T2 probe enabled.

NO T2 probe disabled.

-

12.5 … 12.5

o

C Evaporator temperature probe (T2) offset.

1 … 30 min

Delay for min. ('TLO') and max. ('THI') temperature logging.

1 o

C

2 o

C o

F

0 … 100

1…255

Readout scale:

Range -5

0 …. 110 o

C (0.1

o

C resolution within -9.9 to +19.9

o

C)

Range -

50 …. 110 o

C

Range -

58 …. 180 o

F

Display slowdown.

BIT25 address for PC communication

11

2

10

10

YES

MAN

NON

FAN

0

NO

0

10 o

C

5

1

Individual Model Parameter Settings

Parameter Description:

CSD

DFM

DFT

DFB

DLI

DTO

DTY

DPD

SPL

SPH

SP

C-H

HYS

CRT

CT1

CT2

DRN

DDM

DDY

FID

FDD

FTO

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.

Thermostat off time with faulty T1 probe.

Compressor stop delay after door has been opened.

Defrost start mode.

Time interval between defrosts.

Defrost timer clock.

Defrost end temperature

Maximum defrost duration.

Defrost type.

Evaporator pump down. Timed pause at start of defrost.

Drain down period.

Defrost display mode.

Defrost display delay period.

Fans in defrost.

Evaporator fan restart temperature following defrost.

Maximum evaporator fan stop period following defrost (only when 'T2' =

'YES').

1

3

2

A

3

3

3

B

3

3

3

C

-21

-21

-21

D

1

3

1

E

1

3

1

F

0

10

3

G

-21

-19

-21

H

-21

-19

-21

REF

REF REF REF REF REF REF REF REF

3

3 3 3 3 3 3 3 3

2

6

4

6

4

6

4

6

2

6

2

6

4

6

2

6

2

6

4

1

TIM

6

4

1

TIM

6

4

1

TIM

6

4

1

NON

6

4

1

TIM

6

4

1

TIM

6

4

1

TIM

4

4

1

TIM

6

4

1

TIM

6

YES

YES YES YES YES YES YES YES YES

15

20

15

10

15

10

15

20

15

10

15

10

10

20

15

20

10

10

OFF

OFF OFF OFF OFF OFF OFF ELE ELE

0

0 0 0 0 0 0 0 0

2

3 3 2 2 2 3 2 2

DEF

DEF DEF DEF DEF DEF DEF DEF DEF

10

10 10 10 10 10 10 10 10

YES

YES YES NO YES YES YES NO NO

5

5 5 5 5 5 5 5 5

3

3 3 3 3 3 3 3 3

IISP

IIHY

IIFC

IIDF

SB

DI1

DI2

T3

ATD

ADO

AHM

AHT

ACC

IISM

IISL

IISH

OS3

PSL

PSR

FCM

FDT

FDH

FDS

FT1

FT2

FT3

ATM

ALA

AHA

ALR

AHR

ATI

Evaporator fan mode during thermostatic control.

Te-Ta difference for fans to turn off after compressor stopped.

Temperature differential for evaporator fan restart.

Minimum evaporator fan stop period (following door opening etc.).

Fan stop delay after compressor stop.

Timed fan stop following 'FT1'.

Timed fan run following 'FT2'.

Alarm threshold configuration.

Low temperature alarm threshold.

High temperature alarm threshold (the following parameter will be 'ATI').

Low temperature alarm differential.

High temperature alarm differential.

Alarm probe.

NON

-1

3

20

15

NON

-1

3

20

15

NON NON NON

-1

3

20

15

-1

3

20

15

-1

3

20

15

NON

-1

3

20

15

NON

-1

3

20

15

NON NON

-1

3

20

15

-1

3

20

15

0

2

0

2

0

2

0

2

0

2

0

2

0

2

0

2

0

2

REL

REL REL REL REL REL REL REL REL

-3

-3 -3 -3 -3 -3 -3 -3 -3

8

-5

5

T1

8

-5

5

T1

8

-5

5

T1

8

-5

5

T1

8

-5

5

T1

8

-5

5

T1

8

-5

5

T1

8

-5

5

T1

8

-5

5

T1

Delay before alarm temperature warning.

Delay before door open alarm warning (only when 'DI2' = 'DOR').

90

8

90

8

90

8

90

8

90

8

90

8

90

8

90

8

90

8

Operation in case of high condenser alarm (if 'DI2' = 'T3' and 'T3' = 'CND' ):

NON

NON NON NON NON NON NON NON NON

Condenser alarm temperature (if 'DI2' = 'T3').

65

65 65 65 65 65 65 65 65

Condenser cleaning period.

Switchover method to second parameter set.

Minimum limit for 'IISP' setting.

Maximum limit for 'IISP' setting.

0

0 0 0 0 0 0 0 0

NON

NON NON NON NON NON NON NON NON

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Temperature setpoint to be achieved in 'Mode 2'.

Off / On thermostat differential in 'Mode 2'.

Evaporator fan mode during 'Mode 2' thermostatic control.

Time interval between defrosts in 'Mode 2'.

Standby button operation.

Configurable digital input 1 operation.

Configurable digital input 2 operation.

T3 probe function (only when 'DI2' = 'T3').

T3 probe temperature offset (only when 'DI2' = 'T3').

Minimum setpoint adjusted by potentiometer (only when 'DI2' = 'PSP').

Range of setpoint (hysteresis) for potentiometer (only when 'DI2' = 'PSP').

1

3

6

0

2

10

1

3

NON

NON NON NON NON NON NON NON NON

6

YES

YES YES YES YES YES YES YES YES

NON

NON NON NON NON NON NON NON NON

NON

NON DOR NON NON DOR NON NON NON

DSP

DSP DSP DSP DSP DSP DSP DSP DSP

0

2

10

1

3

6

0

2

10

1

3

6

0

2

10

1

3

6

0

2

10

1

3

6

0

2

10

1

3

6

0

2

10

1

3

6

0

2

10

1

3

6

0

2

10

13

POF

LSM

OA1

OA2

OS1

Potentiometer standby enabling operation (only when 'DI2' = 'PSP').

Light control mode (if 'OA1' = 'LGT').

Auxiliary Relay 1 Operation.

Auxiliary Relay 2 Operation.

Air temperature probe (T1) offset.

T2

OS2

TLD

SCL

T2 probe enabling.

Evaporator temperature probe (T2) offset.

Delay for min. ('TLO') and max. ('THI') temperature logging.

Readout scale.

SIM Display slowdown.

ADR BIT25 address for PC communication.

Yellow values highlight a difference from the controllers default setting.

YES

YES YES YES YES YES YES YES YES

NON

NON D2C NON NON D2C NON NON NON

NON

NON LGT NON NON LGT NON DEF DEF

FAN

FAN FAN FAN FAN FAN FAN FAN FAN

0

0 0 0 0 0 0 0 0

NO

NO

0

NO

0

NO

0

NO

0

NO

0

NO

0

YES

0

YES

0

0

10

2 o

C

2

10 o

C

10 10 10 10 10

2 o

C 2 o

C 2 o

C 2 o

C 2 o

10 10

C 2 o

C 2 o

C

5

1

5

1

5

1

5

1

5

1

5

1

5

1

5

1

5

1

14

Wiring Diagram

– All models (including with light option)

15

Troubleshooting

Problem

Compressor will not start

The temperature is too cold

The temperature is not cold enough

Possible Cause

No voltage in socket

Electrical conductor or wires may be cut

Defective electrical component: thermostat, relay, thermal protector etc.

Solution

Use voltmeter to check

Use ohmmeter to check for continuity

Replace defective component

Compressor motor has a winding open or shorted

Measure ohmic resistance of main and auxiliary winding using ohmmeter. Compare with correct values

Change compressor Compressor stuck

Temperature control contacts are open

Incorrect wiring

Fuse blown or circuit breaker tripped.

Power cord unplugged

Controller set too high

Cabinet in defrost cycle

Controller is set at a very cold position

Controller does not disconnect the condensing unit

Control contacts are stuck closed

Defective or incorrect temperature control

Controller is set at a very warm position

Repair or replace the contacts

Check wiring diagram and correct

Replace fuse or reset circuit breaker

Plug in power cord.

Set controller to lower temperature.

Wait for defrost cycle to finish

Set to warmer position and check if the compressor stops according to controllers operating range.

Check the insulation of the thermostat. If problem persists, change the thermostat

Change the control. Check amperage load

Determine correct control and replace.

Adjust to colder setting

Condenser is dirty

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

Iced up evaporator coil

Restriction in system

The refrigerator has been used improperly

Too many door openings

Clean condenser

The unit must not be near stoves, walls that are exposed to the sun, or places that lack sufficient air flow.

If there is air in the system, purge and recharge

Check temperature control, refrigerant charge, and defrost mechanism. Remove all ice manually and start over.

Locate exact point of restriction and 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.

Advise user to decrease if possible

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Electrical Shocks

Noise

Extreme condensation inside the refrigerator

No illumination (Glass door models only)

Excessive heat load placed in cabinet

The 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

Fuse blown or circuit breaker tripped

Wires or electrical components are in direct contact with metallic parts.

Advise user not to put in products that are too hot.

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 stuck. 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.

Replace fuse or reset circuit breaker.

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

Loose part(s)

Controller is set at a very cold position

The outside environment’s relative humidity is very high (over 75%)

The refrigerator door won completely

’t shut

The refrigerator had been placed at an inadequate location

The light switch is “off” position

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.

Locate and tighten loose part(s)

Set the controller to a warmer position & 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 broken.

The unit must not be near sources that produce too much heat.

Press the light switch to “on” position

False contact on the light switch, the fluorescent tube, or the ballast

Light switch, ballast and/or fluorescent tube are damaged

Inspect all connections

Replace the damaged component.

17

Condensing unit runs for long periods of time

Excessive amount of warm product placed in cabinet

Prolonged door opening or door ajar

Door gasket(s) not sealing properly

Advise user to leave adequate time for products to cool down

Advise user to ensure doors are closed when not in use and to avoid opening doors for long periods of time.

Ensure gaskets are snapped in completely. Remove gasket and wash with soap and water. Check condition of gasket & replace if necessary

Dirty condenser coil Clean condenser coil

Evaporator coil iced over

Unplug unit and allow coil to defrost.

Make sure thermostat is not set too cold. Ensure that door gasket(s) are sealing properly. Select manual defrost and ensure system works.

Notes

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Foster European Operations

France

Foster Refrigerator France SA

Tel: (33) 01 34 30 22 22. Fax: (33) 01 30 37 68 74.

Email: [email protected]

Germany

Foster Refrigerator Gmbh,

Tel: (49) 781 990 7840. Fax (49) 781 990 7844.

Email: [email protected]

Foster Refrigerator

Oldmedow Road

Kings Lynn

Norfolk

PE30 4JU

Tel: 0843 216 8833

Fax: 0843 216 4707

Website: www.fosterrefrigerator.co.uk

Email: [email protected] a Division of ‘ITW (UK) Ltd’

UNDERCAB/BIT25/SM 12/11

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