Blue Seal Evolution Series User manual

1
239643-1
REFRIGERATION BASE
INSTALLATION AND OPERATION MANUAL
For use in GB & IE
Blue Seal RB900 - 900mm wide Refrigeration Base.
Blue Seal RB1200 - 1200mm wide Refrigeration Base.

The reproduction or copying of any part of this manual by any means whatsoever is strictly forbidden unless authorized previously in
writing by the manufacturer.
In line with policy to continually develop and improve its products, Moffat Ltd. reserves the right to change the specifications and
design without prior notice.
© Copyright Moffat Ltd. May 2016.
MANUFACTURED BY
Moffat Limited
Rolleston 7675
New Zealand
INTERNATIONAL CONTACTS
AUSTRALIA
Moffat Pty Limited
Web: www.moffat.com.au
E.Mail: [email protected]
Main Office: (tel) [phone]
(fax) [phone]
Service: (tel): 1800 622 216
Spares: (tel): 1800 337 963
Customer Service: (tel): 1800 335 315
(fax): 1800 350 281
CANADA
Serve Canada
Web: www.servecanada.com
E.Mail: [email protected]
Sales: (tel): 800 551 8795 (Toll Free)
Service: (tel): 800 263 1455 (Toll Free)
NEW ZEALAND
Moffat Limited
Web: www.moffat.co.nz
E.Mail: [email protected]
Main Office: (tel): 0800 663328
UNITED KINGDOM
Blue Seal
Web: www.blue-seal.co.uk
E.Mail: [email protected]
Sales: (tel): [phone]
(fax): [phone]
Spares: (tel): [phone]
(fax): [phone]
Service: (tel): [phone]
(fax): [phone]
UNITED STATES
Moffat
Web: www.moffat.com
Sales: (tel): 800 551 8795 (Toll Free)
(tel): [phone]
(fax): [phone]
Service: (tel): 866 673 7937 (Toll Free)
(tel): [phone]
(fax): [phone]
REST OF WORLD
Moffat Limited
Web: www.moffat.co.nz
E.Mail: [email protected]

Contents
Blue Seal - Refrigeration Base
Blue Seal RB900 - 900mm wide Refrigeration Base.
Blue Seal RB1200 - 1200mm wide Refrigeration Base.
Introduction .............................................................................................. 3
Specifications ........................................................................................... 4
Model Numbers Covered in this Specification
XR02CX Controller
SF-102 Controller
General
Electrical Supply Requirements
Installation ................................................................................................ 6
Installation Requirements
Unpacking
Location
Clearances
Assembly
Electrical Connection
Commissioning
Operation................................................................................................... 8
Operation - XR02CX Controller ................................................................. 9
Operation Guide XR02CX Controller Only
Control Panel - Controller
Operation of the Controller
Operation of the Appliance
Controller Error Messages
Temperature Alarms
Operation - SF102 Controller .................................................................. 14
Operation Guide SF102 Controller Only
Control Panel - Controller
Function of the Control Panel Keys
Operation of the Appliance
Controller Error Messages
Temperature Alarms
Configuration Parameters and Default Settings

Contents
Cleaning and Maintenance ...................................................................... 21
General
Before Use Cleaning
Weekly Cleaning
Periods of Inactivity
Periodic Maintenance
Fault Finding............................................................................................ 23
Wiring Schematics................................................................................... 25
Wiring Schematic XR02CX Controller
Wiring Schematic SF-102 Controller
Replacement Parts List ........................................................................... 27

3
Introduction
We are confident that you will be delighted with your BLUE SEAL REFRIGERATION BASE, and it will
become a most valued appliance in your commercial kitchen.
To ensure you receive the utmost benefit from your new Blue Seal Refrigeration Base, there are two
important things you can do.
Firstly
Please read the instruction book carefully and follow the directions given. The time taken will be well
spent.
Secondly
If you are unsure of any aspect of the installation, instructions or performance of your Refrigeration
Base, contact your BLUE SEAL dealer promptly. In many cases a phone call could answer your
question.
CE Only:
These instructions are only valid if the country code appears on the appliance. If the code does not
appear on the appliance, refer to the supplier of this appliance to obtain the technical instructions for
adapting the appliance to the conditions for use in that country.

4
Specifications
Cabinet Details
Refrigerant Type R134A
Operating Range -2°C to +8°C
Voltage Rating 230 - 240 Volt, 50/60 Hz, Single phase 250W, 3.0 amp Max.
Temperature Sensor Type NTC
Model Numbers Covered in this Specification
Blue Seal RB900 - 900mm wide Refrigeration Base.
Blue Seal RB1200 - 1200mm wide Refrigeration Base.
General
A commercial heavy duty refrigeration base which can be used in conjunction with the Target Top, Cook
Top and Dedicated Griddle appliances. It utilises an electronic microprocessor based control panel which
allows variable programming of the various configuration parameters and defrost cycles.
- XR02CX Controller
The Model XR02CX Controller is a digital thermostat with off cycle defrost designed for refrigeration
applications at normal temperature. It provides a relay output to drive the compressor. It is also provided
with 1 NTC probe input and one configurable digital input. The instrument is fully configurable through
special parameters that can be easily programmed through the keyboard.
The main functions of the Controller are:-
 Temperature display.
 Temperature control.
 Manual / Automatic defrost.
 Value storing.
 Self testing.
 Parameter locking.
The controller is fully configurable through special parameters that can be easily programmed through the
control panel keypad.
This appliance can operate in the following conditions;-
 Temp. amb +40°C ± 1°C relative humidity 55%.
 Optimum operational ambient temperatures are between +0°C / + 60°C with a relative
humidity of 20/85% (Non Condensing).
 -2°C to +15°C. Storage for short periods of fresh food.
 -2°C to +8°C. Storage of prepared cooked food.
NOTE: This cabinet is not to be used for the storage of medical supplies.
Compressor
The regulation of the compressor is performed according to the temperature measured by the
thermostat probe with a positive differential from the Set-point. If the temperature increases and
reaches the Upper Set-point 'US' + differential, the compressor is started. Once the temperature
reaches the Lower Set-point 'LS' value, then the compressor is turned ‘Off’.
Defrost
Controller activated defrost is performed by the controller simply stopping the compressor using a
factory pre-programmed defrost setting. To change this setting, contact your authorised service
provider.
Cabinet Details
Refrigerant Type R134A
Operating Range -2°C to +8°C
Voltage Rating 230 - 240 Volt, 50/60 Hz, single phase 250W, 3.5 amp Max.
Temperature Sensor Type NTC

5
Specifications
- SF102 Controller
The controller is a mini-sized and integrated intelligent controller and applicable to the 1HP Compressor
used on this Refrigeration Base. The main functions of the Controller are:-
 Temperature display.
 Temperature control.
 Manual / Automatic defrost.
 Illumination control.
 Value storing.
 Self testing.
 Parameter locking.
The controller is fully configurable through special parameters that can be easily programmed through the
control panel keypad.
This appliance can operate in the following conditions;-
 Temp. amb +40°C ± 1°C relative humidity 55%.
 Optimum operational ambient temperatures are between +10°C / +30°C with a relative
humidity of 30/55%.
 -2°C to +15°C. Storage for short periods of fresh food.
 -2°C to +8°C. Storage of prepared cooked food.
NOTE: This cabinet is not to be used for the storage of medical supplies.
Compressor
The regulation of the compressor is performed according to the temperature measured by the
thermostat probe with a positive differential from the Set-point. If the temperature increases and
reaches the Upper Set-point 'E2' + differential, the compressor is started. Once the temperature
reaches the Lower Set-point 'E1' value, then the compressor is turned ‘Off’.
Defrost
Defrost is performed through a simple stop of the compressor. Parameter ‘F2’ controls the interval
between defrost cycles, while the length of defrost (time) is controlled by the parameter ‘F1’.
Parameter 'F3' sets the evaporator temperature which, when reached, ends the defrost cycle. For
safety purposes, the defrosting ends after the time set at 'F1' is reached.
Electrical Supply Requirements
Check that the supply conforms to the requirements listed on the factory label and that it is provided with a
fail-safe protection or an automatic circuit breaker with an efficient earth connection.
Cabinet Details
Refrigerant Type R134A
Operating Range -2°C to +8°C
Voltage Rating 230 - 240 Volt, 50/60 Hz, Single phase 250W, 3.0 amp Max.
Temperature Sensor Type NTC

6
Installation
Installation Requirements
NOTE:
 It is most important that this Refrigeration Base is installed correctly and that operation is
correct before use. Installation shall comply with local electrical, health and safety
requirements.
 This appliance shall be installed with sufficient ventilation to prevent the occurrence of
unacceptable concentrations of health harmful substances in the room, the appliance is
installed in.
Blue Seal Refrigeration Bases are designed to provide years of satisfactory service, and correct installation
is essential to achieve the best performance, efficiency and trouble-free operation.
This appliance must be installed in accordance with National installation codes and in addition, in
accordance with relevant National / Local codes covering electrical and fire safety.
Australia / New Zealand AS/NZS3000 - Wiring Rules.
United Kingdom: BS 7671 - Requirements for Electrical Installations.
Installations must be carried out by authorised service persons only. Failure to install
equipment to the relevant codes and manufacturer’s specifications shown in this section will
void the warranty.
Unpacking
1. Remove all packaging and transit protection from the appliance including all protective plastic
coating from the exterior stainless steel panels.
2. Check equipment and parts for damage. Report any damage immediately to the carrier and
distributor.
3. Ensure that the 4 adjustable feet are fitted.
4. Report any deficiencies to the distributor who supplied the appliance.
5. Check that the available electrical supply is correct to that shown on the rating plate located on the
right hand inner side panel of the condenser compartment.
Location
1. The appliance must NOT be installed in an explosive environment, the open air or exposed to rain.
The following considerations should be made;-
 Must be located away from heat sources (radiators ovens and other heat generating kitchen
appliances) and direct sunlight.
 Must be protected from draughts.
 Air circulation around the condensing unit must not be obstructed and is essential whether an
integral or remote system is used.
2. Do not move the appliance by applying pressure on the side panels. The appliance should only be
lifted by the exterior of the base to avoid the possibility of damaging the internals of the appliance.
3. Position the appliance on a flat surface in its approximate working position and level using a spirit
level and adjusting the adjustable legs.
NOTE: If the appliance has been moved, WAIT 2 HOURS before applying power and starting the
unit to allow the refrigerant to settle.
Clearances
Ensure that the space reserved for the appliance allows adequate room to carry out maintenance
activities.

7
Installation
Assembly
The dispersal of defrost water is done automatically with appliances fitted with integral condensing units.
This appliance is fitted with adjustable feet to enable the unit to be positioned securely and level. This
should be carried out on completion of the electrical connection.
Electrical Connection
NOTE: ALL ELECTRICAL FITTING MUST ONLY BE CARRIED OUT BY AN AUTHORISED PERSON.
a. Input Rate of this appliance is shown on the Rating Plate and in the ‘Specifications’ section of this
manual. The input rate should be checked against the available electrical supply.
b. Ensure that the appliance is fitted with a fail safe protection or automatic circuit breaker.
c. Where the cabinet has to be installed at some distance from the electrical source, ensure that the
connection conforms to the local regulations.
d. Cabinets supplied with integral condensing units are supplied with an appropriate plug fitted with
a neutral and earth.
e. Careful routeing of the supply cable should be considered to ensure the following;
 The cable must not be over-stretched (also avoid having to coil the cable).
 The cable must not be exposed to possible damage by 3rd parties.
 The cable should not come in contact with liquids, water or heat sources.
 Always avoid the use of reducers or adaptors.
NOTE:
 This appliance must be grounded / earthed.
 Fixed wiring installations must incorporate an all-pole disconnection switch.
Commissioning
1. Before leaving the new installation;
a. Check the following functions in accordance with the operating instructions specified in the
‘Operation’ section of this manual.
 Operation of the Appliance.
 Control Panel Parameter Function Settings are correct.
b. Ensure that the operator has been instructed in the correct operating procedure for the
appliance.
2. This manual must be kept by the owner for future reference, and a record of
Date of Purchase,
Date of Installation and Serial Number of Appliance recorded and kept with this manual.
(These details can be found on the Rating Plate attached to the inner panel behind the
compressor door.
NOTE: If for some reason it is not possible to get the appliance to operate correctly, shut off the
power supply and contact the supplier of this appliance.

8
Operation
Operation
1. Blue Seal Refrigerator Bases have been designed to provide simplicity of operation and 100% safety
protection.
2. Improper operation is therefore almost impossible, however bad operation practices can reduce the
life of the appliance and produce poor results. To use this appliance correctly please read the
following information carefully:-
NOTE: The Refrigeration Base may be fitted with either of the following type controllers. The
operating instructions for each controller is different. Please note which controller you
have fitted and ensure that you read the correct operating instructions for the type of
controller fitted as shown in the following sections.
XR02CX Controller (Replacement Controller)
Refer Section ‘Operation - XR02CX Controller’.
SF-102 Controller (Old Type Controller)
Refer Section ‘Operation - SF-102 Controller’.

9
Operation - XR02CX Controller
Operation Guide - XR02XC Controller Only
NOTE: Please ensure that the Controller shown below is the controller you have fitted to your
appliance and ensure that you read the following operating instructions before using your
appliance.
Control Panel - Controller
Keys and their Function
‘Set’ key is used to display Target set point. In programming Mode is used to select a
parameter or confirm a setting.
Used to start a Manual Defrost. Defrost is performed by simply stopping the compressor.
Is used to browse the Parameter Codes or increase the displayed value.
Is used to browse the Parameter Codes or decrease the displayed value.
Key Combination
To lock or unlock the controller keypad (press simultaneously).
To enter the Programming Mode.
To return to the current Cabinet Temperature display.
LED Mode Remarks
On Compressor enabled.
Flashing Anti short cycle delay enabled (AC Parameter)
On Defrost in progress.
Flashing Dripping in progress.
On Unit of measurement.
Flashing Programming Mode.
On Unit of measurement.
Flashing Programming Mode.
Mains Power
'ON' / 'OFF' Switch
Defrost
Key
Defrost
Symbol
Compressor
Motor
Fan
Motor
Unit of
Measurement
Set Key
Function
Keys
Digital Display
Readout

10
Operation - XR02CX Controller
Operation of the Controller
Main Power Switch
Main Power Control switch for the power input to the Refrigeration Base and Control
Panel. When switched 'ON', the switch is illuminated.
Control Panel Functions
The control panel includes the following keys and LED's;
 The ‘UP’ Key (Increase).
 The ‘DOWN’ Key (Decrease).
 The ‘SET’ Key (Setting Changes).
 The ‘DEFROST’ Key.
 A 3 Digit LED Display.
 3 Signal LED’s.
Display Functions
The Display will show the following functions;
 Cabinet Temperature Value (Present Temperature of Cabinet).
 Main Setpoint Value (Value set for Cabinet to Operate at).
 Error Messages. (See ‘Error Messages Table’).
 Configuration Parameter Values. (See User Level Settings).
Locking / Unlocking the Keypad
1. Press the and keys simultaneously for more than 3s, to change between the ‘oF’ (keypad
locked) and the ‘on’ (keypad unlocked).
Changing the ‘Set Temperature’
The ‘Set Temperature’ of the Cabinet is factory pre-set at 3°C (37.4°F). To change the ‘Set Temperature’,
carry out the following:-
1. Push the ‘Set’ key to select between the ‘Set’ and ‘Current’ values.
2. Whilst in ‘Current’ value, press the ‘Set’ key for more than 2s and the °C / °F symbol is blinking,
press or keys to change the set value.
3. To save the new set point value push the ‘Set’ key again or wait 15s.
Manually Controlled Defrost Cycle
Push the Defrost key for more than 2 seconds and a manual defrost will start and the defrost Icon will
illuminate on the display screen.
Controller Activated Defrost Cycle
Controller activated defrost is performed by the controller simply stopping the compressor using a factory
pre-programmed defrost setting. To change this setting, contact your authorised service provider.

11
Operation - XR02CX Controller
User Level Settings
NOTE: To change any of the service parameters to suit operational / application requirements,
contact your authorised service provider.
To Change a Parameter Value
To change the parameter’s value carry out the following;
1. Unlock the keypad as shown on the previous page.
2. Press ‘Set’ + keys simultaneously for 3s to access user level (‘°C’ or ‘°F’ LED starts blinking).
3. Press or to select the parameter required.
4. Press the ‘Set’ key to display its value.
5. Press or to change its value.
6. Press ‘Set’ to store the new value and move to the next parameter.
7. To exit Programming Mode, press ‘Set’ + keys simultaneously or wait 15s without pressing a
key.
NOTE: The set value is stored even when the procedure is exited, by waiting for the time-out to
expire.
Parameter Range
Code Description
Hy Differential 0.1 ~ 25°C / 1 ~ 45°F 2°C / 35.6°F
LS Minimum Set Point - 55°C ~ Set / -67°F ~ Set. -2°C / 28.4°F
US Maximum Set Point Set ~ 99°C / Set ~ 99°F. 8°C / 46.4°F
CF Measurement Units °C - °F °C
Default Settings

12
Operation - XR02CX Controller
Operation of the Appliance
These Cabinets are activated by a main power switch and an electronic control panel. The operations
available to the user are:-
To Operate the Cabinet.
a. Switch on the main power switch on the front of the appliance.
b. The main power switch and display screen on the control panel will illuminate.
c. The current temperature within the cabinet will be shown on the display screen.
NOTE: During ‘Start-Up” if the cabinet temperature is higher than the ‘Main Setpoint Temperature’
'Compressor LED Indicator will flash alternatively until the cabinet temperature reaches the
temperature set at the ‘Main Setpoint Temperature’.
d. The 'Compressor LED Indicator will flash ‘ON’ / 'OFF' indicating that there is power to the
compressor. In the case of power interruption, the compressor will normally start after a slight
delay.
Viewing Cabinet Temperature.
During normal operating, the temperature in the cabinet is displayed on the display screen.
Storage of Food Stuffs
In order to obtain the best performance from the cabinet, it is necessary to note the following
instructions;-
a. Only place the merchandise into the cabinet when it has reached the desired operating
temperature shown on the cabinet display screen.
b. Do NOT place uncovered hot foods or liquids inside the cabinet.
c. Package or protect food where possible.
d. Do not limit the circulation of air inside the cabinet by overfilling the compartments.
e. Avoid frequent or prolonged opening of the drawers or door.
f. Always wait a few moments before re-opening the drawers or door, if they have just been closed.
g. Whilst filling the cabinet with product, only open one drawer at a time to prevent over balancing
the unit.

13
Operation - XR02CX Controller
Controller Error Messages
Error messages are shown in the table below.
Error Message Table
Temperature Alarms
The Digital Controller signals a temperature alarm by the following:-
Probe alarms ‘P1’ and ‘P2’ will start some seconds after the fault in the related probe; they automatically
stop some seconds after the probe restarts normal operation. Check connections before replacing the
probe.
Temperature alarms ‘HA’ and ‘LA’ automatically stop as soon as the temperature returns to normal values.
Alarms ‘EA’ and ‘CA’ (with iF=bL) recover as soon as the digital input is disabled.
Error Message Possible Cause Outputs
‘P1’ Cabinet Probe failure. Compressor output according to ‘Cy and ‘Cn’.
‘P2’ Evaporator Probe failure. Defrost end has timed out.
‘HA’ Maximum Temperature alarm. Outputs unchanged.
‘LA’ Minimum Temperature alarm. Outputs unchanged.
‘EA’ External alarm. Outputs unchanged.
‘CA’ Serious External alarm. All outputs ‘OFF’.
‘dA’ Door Open. Compressor and Fan restarts.

14
Operation - SF-102 Controller
Operation Guide - SF102 Controller Only
NOTE: Please ensure that the Controller shown below is the controller you have fitted to your
appliance and ensure that you read the following operating instructions before using your
appliance.
Control Panel - Controller
Control Panel Functions
The control panel includes the following keys and LED's;
 The ‘UP’ Key (Increase).
 The ‘DOWN’ Key (Decrease).
 The ‘SET’ Key (Setting Changes).
 The ‘ILLUMINATION’ / 'DEFROST' Key.
 A 3 Digit LED Display.
 2 signal LED’s.
Display Functions
The Display will show the following functions;
 Cabinet Temperature Value (Present Temperature of Cabinet).
 Main Setpoint Value (Value set for Cabinet to Operate at).
 Error Messages. (See ‘Error Messages Table’).
 Configuration Parameter Values. (See Configuration Parameters and Default Settings).
‘DOWN’ Key
‘UP’ Key
LED Display Screen
Defrost 'ON' Logo and
LED Indicator
Compressor 'ON' Logo and
LED Indicator
‘DEFROST’ Key
‘SET’ Key
Mains Power
'ON' / 'OFF' Switch

15
Operation - SF-102 Controller
Function of the Control Panel Keys
When depressed, while programming, will increase the value shown on the display:-
 For the Main Set-point configuration.
 For the Parameter configuration.
When depressed, during normal controller operations, and held for 6 Seconds the
evaporator temperature (detected by the cabinet end probe will be shown on the display).
After 10 seconds the display reverts to displaying the cabinet Temperature.
When depressed, while programming, will decrease the value shown on the display;
 For the Main Set-point configuration.
 For the Parameter configuration.
When depressed and then released, during Normal Controller Functioning the Main Set-
Point Temperature will flash on the display screen.
Pressing the 'Set' key again will exit the Main Set-Point temperature adjustment mode and
will display the current cabinet temperature.
When depressed and held for 6 Seconds when parameter 'E1' flashes, will allow entry to the
Parameter Set-Up Menu (where the Parameters listed in the Parameter Configuration
Table can be changed).
When depressed again when in Parameter Set-Up Menu will allow sequential selection of the
10 Parameters shown in the Parameter Configuration Table.
When depressed during Normal Controller Operations will illuminate. Press again to turn off
illumination.
When depressed for 6 Seconds during Normal Controller Operations will start / stop the
Manual Defrost Cycle and the defrost LED will illuminate / extinguish.

16
Operation - SF-102 Controller
Operation of the Appliance
These Cabinets are activated by a main power switch and an electronic control panel. The operations
available to the user are:-
To Operate the Cabinet.
a. Switch on the main power switch on the front of the appliance.
b. The main power switch and display screen on the control panel will illuminate.
c. The current temperature within the cabinet will be shown on the display screen.
NOTE: During ‘Start-Up” if the cabinet temperature is higher than the ‘Main Setpoint Temperature’
'Compressor LED Indicator will flash alternatively until the cabinet temperature reaches the
temperature set at the ‘Main Setpoint Temperature’.
d. The 'Compressor LED Indicator will flash ‘ON’ / 'OFF' indicating that there is power to the
compressor. In the case of power interruption, the compressor will normally start after a slight
delay.
Viewing Cabinet Temperature.
During normal operating, the temperature in the cabinet is displayed on the display screen.
Changing the Cabinet Set Temperature.
NOTE: Cabinet Set Temperature is set at 3°C.
a. To change the ‘Cabinet Set Temperature’, press and release the ‘SET’ key, the temperature
presently set will be displayed and will flash, indicating that the Programming Mode has been
selected.
b. Press the ‘UP’ or ‘DOWN’ keys until the desired temperature is reached.
This change must be
carried out within 10 seconds of the ‘SET’ Key being depressed otherwise the
controller will revert to the ‘Normal Operating Mode’ and will display the current
Cabinet Temperature without changing the setting.
c. Press the ‘SET’ key to confirm the new temperature.
d. If the 'SET' key is not pressed, the display will revert to showing the present cabinet temperature
and the 'SET' temperature will be saved.
Storage of Food Stuffs
In order to obtain the best performance from the cabinet, it is necessary to note the following
instructions;-
a. Only place the merchandise into the cabinet when it has reached the desired operating
temperature shown on the cabinet display screen.
b. Do NOT place uncovered hot foods or liquids inside the cabinet.
c. Package or protect food where possible.
d. Do not limit the circulation of air inside the cabinet by overfilling the compartments.
e. Avoid frequent or prolonged opening of the drawers or door.
f. Always wait a few moments before re-opening the drawers or door, if they have just been closed.
g. Whilst filling the cabinet with product, only open one drawer at a time to prevent over balancing
the unit.
Defrosting
Timer Defrosting
The electronic control panel automatically defrosts the cabinet if the temperature of the evaporator
sensor is less than the defrost termination temperature. (see Parameter F3).
During the defrosting cycle the defrost LED will be 'ON' and the compressor will turn 'OFF'.
When the temperature of the of the evaporator sensor is higher than the defrost termination
temperature, or the defrost duration time is completed, the defrost LED will turn 'OFF' and after 2
minutes the compressor will return to the normal operating mode.
NOTE: If the 'Max Defrost Duration' (See Parameter F1) is set to '00', the automatic defrost function
will be turned 'OFF'.

17
Operation - SF-102 Controller
When setting Parameter F4, the cabinet temperature is locked during defrost and the last value
before defrost will be displayed and the defrost LED will flash continuously. When the defrost is
completed, the defrost LED will extinguish and normal display will resume, showing the current
cabinet temperature.
To modify the defrost cycle start time, refer to ‘Changing the Configuration Parameters’ Section in
this manual.
Manual Defrosting
a. IF manual defrosting is required, press the
‘Illumination / Defrost’ key on the control panel for
more than 6 seconds, the defrost cycle will start
immediately. The compressor will turn 'OFF' and the
defrost LED will stay illuminated.
b. During the defrost cycle, the Defrost LED will
illuminate on the Control Panel.
c. To cancel the defrost cycle, press and hold the
‘Illumination / Defrost’ key on the control panel for
more than 6 seconds and the defrost cycle will be
cancelled, the defrost LED will flash and normal display
will resume, showing the current cabinet temperature.
The compressor LED will illuminate.
Controller Error Messages
Error messages are shown in the table below.
Error Message Table
Temperature Alarms
The Digital Controller signals a temperature alarm by the following:-
 Displaying 'HH' on the display, when the temperature probe is short circuited or is overheated.
(Senses a temperature of more than 45°C / 120°F).
 Displaying 'LL' on the display, when the temperature probe is open circuit or too low a
temperature. (Senses a temperature of less than - 45°C / - 40°F).
The compressor will automatically cycle 'ON' for 45 minutes and 'OFF' for 15 minutes.
If the Evaporator Sensor fails over the displayed range, the defrost termination will be controlled by the
Defrost Duration Parameter (Parameter F1).
Fault Message Possible Cause Outputs
‘HH’ Cabinet Probe Failure.
Cabinet Probe short circuit.
Cabinet Probe overheated.
‘LL’ Cabinet Probe Failure.
Cabinet Probe open circuit.
Cabinet temperature too low.
Defrost 'ON' Logo
and LED Indicator.
Compressor 'ON' Logo
and LED Indicator

18
Operation - SF-102 Controller
Configuration Parameters and Default Settings
The configuration parameters and related limits (or options) are shown in the table below. Please note
that to access these parameters through the Control Panel, the Key Pad will have to be unlocked to allow
access to the Configuration Parameters. Refer to 'Unlocking and Locking the Key Pad' in this section.
NOTE: Ensure that Cabinet Set Temperature is set at 3°C.
Table of Configuration Parameters:
Item
No. Parameter Range Default Settings
Unit Display
E1 Lower Set-Point Limit. - 45°C ~ Set Temp. - 2°C – 02
- 40°F
E2 Higher Set-Point Limit. Set Temp ~ 45°C. 8°C 08
120°F.
E3 Temperature Hysteresis. 1 ~ 10°C.
1 ~ 18°F. 2°C
02
E4 Compressor Start - Delay Time. 0 ~ 10 minutes. 2 minutes 02
E5 Offset on Room Temperature. - 5 ~ 5°C / F. 0 00
E6 Offset on Evaporator Temperature. - 5 ~ 5°C / F. 0 00
F1 Maximum Defrost Duration. 1 ~ 60 minutes. 20 minutes 20
F2 Defrost Interval Time. 0 ~ 24 hours. 6 hours 06
F3 Defrost Termination Temperature. 0 ~ 20°C.
32 ~ 68°F. 5°C 05
F4 Display During Defrost. 0 = Normal Display.
1 = Last Value Before Defrost. 1 01
C1 Temperature Measurement Units. °C.
°F. ˚C C
PAS Password Setting. 00 - 99 33 33