Skope SERENE SC112G User manual

Service Manual MAN10556 Rev. 3.5 Feb. 2024
SC112G
SERENE Four Glass Sided Fridge
Type: HSC112A/Z089
from SKOPE

SC112G
SERENE Four Glass Sided Fridge
Type: HSC112A/Z089
Service Manual
MAN10556
Rev. 3.5 Feb. 2024
© 2012 SKOPE Industries Limited. All rights reserved.
SKOPE Industries Limited reserve the right to alter specifications without notice.
is a registered trademark of SKOPE Industries Limited.
SKOPE INDUSTRIES LIMITED
Head Office
PO Box 1091, Christchurch
New Zealand
Freephone: 0800 947 5673
Fax: [phone]
E-mail: [email protected]
Website: www.skope.co.nz
Trademark Infringement
The SERENE trademark on this product is infringed if the owner, for the time being, does
any of the following:
• Applies the trade mark to the product after their state, condition, get-up or packaging
has been altered in any manner
• Alters, removes (including part removal) or obliterates (including part obliteration) the
trade mark on the product
• Applies any other trade mark to the product
• Adds to the product any written material that is likely to damage the reputation of the
trade mark
Notice of the above contractual obligations passes to:
• Successors or assignees of the buyer
• Future owners of the product

SERENE SC112G
Service Manual iii
Contents
1 Specifications
SC112G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2 Electronic Controller
Electronic Controller Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Faceplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Running the Fridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Evaporator Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Temperature Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Door Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Defrost Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Messages and Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Controller Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Programming the Electronic Controller . . . . . . . . . . . . . . . . . . . . . . .10
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Parameter list – SC112G program 088. . . . . . . . . . . . . . . . . . .11
3 Replacement Procedures
Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Adjusting the Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Interior lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Bottom Sign Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Replacing Door Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Removing and Fitting Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Adjusting Door Tension. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Refrigeration System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Refrigeration Cartridge Assembly . . . . . . . . . . . . . . . . . . . . . . . . .16
Refrigeration System Access . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Refrigeration System Dismantling. . . . . . . . . . . . . . . . . . . . . . . . .18
Evaporator Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power Supply and Surge Protector. . . . . . . . . . . . . . . . . . . . . . . .22
Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Compressor Electrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Electronic Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Electronic Controller Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Controller Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Control Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Evaporator Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Door Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

SERENE SC112G
Service Manual
iv
4 Wiring
Model: SC112G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5 Spare Parts
Cabinet Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Refrigeration System Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6 Troubleshooting
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5
SERENE SC112G
Specifications
Service Manual
1 Specifications
SC112G Description: SERENE Four Glass Sided Fridge
Type: HSC112A/Z089
Tools required for servicing may consist of the following:
• Screwdriver with Pozidriv PZ1 and PZ2 bit
• Small slotted screwdriver (for electrical connectors)
Table 1: SC112G specifications
Dimensions
External Internal
Height 1080 to 1095 mm 740 mm
Width 470 mm 340 mm
Depth 470 mm 350 mm
Floor area 0.22 m2
Refrigeration system Bottom-mounted, integral, electronically controlled refrigeration system
Electronic controller CAREL S4
Refrigerant R134a/135 g
Operating temperature range +1°C to +7°C
Tested climate 25°C @ 60% relative humidity (climatic class 3)
Electrical 220-240 volts a.c. 50 Hz, single phase supply, 1.2 amps
Nominal capacity 235 watts (@ -15°C SST) CECOMAF rating condition
Sign lighting Bottom sign: 2 × horizontal LED lights (total 2 W)
Internal lighting 4 × vertical corner LED lights (total 8 W)
Doors 2 × double-glazed, single low-e, lockable, toughened glass swing doors
(right hand hinged)
Shelves 3 × adjustable height wire shelves (351 mm × 357 mm)
Internal volume 109 litres
Total weight 52 kg

6Electronic Controller
Service Manual
SERENE SC112G
2 Electronic Controller
Electronic Controller Operations
Overview The SC112G fridge is fitted with a CAREL S4 electronic controller. The
electronic controller is visible on the front panel and is housed inside the
controller box at the front of the refrigeration system.
The electronic controller controls and displays the fridge temperature and
signals temperature alarms. It uses two temperature probes within the
refrigeration system to collect data, and runs the fridge accordingly.
The electronic controller is pre-programmed; SKOPE does not recommend
changing the settings unless it is absolutely necessary. To ensure efficient
operation, the electronic controller automatically forces a defrost cycle when
required.
IMPORTANT
The electronic controller must only be adjusted by an authorised
service agent.
Figure 1: CAREL S4
electronic controller

7
SERENE SC112G
Electronic Controller
Service Manual
Faceplate Because the electronic controller plays such an important role, it’s helpful to
know the parts of the faceplate you may use.
ES
12
3
4
5
68
7
Table 2: Controller faceplate
No. Item Description
1
Digital display of cabinet temperature or messages.
The temperature is what the sensor inside the fridge detects,
and not necessarily the product temperature. However, they
may be very close depending on how the controller is set to
sense temperature.
2
Energy Save (up): Press to view the current mode. “EnS” =
Energy Saving and “nor” = Normal.
Press and hold for 3 seconds to switch the fridge between
“Energy Save” and “Normal” mode.
3Set (mute): Press to mute the alarm. Press and hold to
access the parameters.
4Light (down): Press and hold to switch the cabinet lights on
and off.
5
Defrost: ON when the defrost is activated. Flashes when the
activation of the defrost is temporarily delayed due to
procedures in progress.
6
Compressor: ON when the compressor and condenser fan
starts. Flashes when activation of the compressor is
temporarily delayed.
7Fan: ON when the internal cabinet fans are activated.
Flashes when activation of the fans is temporarily delayed.
8Alarm: ON when alarm is signalled.
ES

8Electronic Controller
Service Manual
SERENE SC112G
Running the Fridge
Operating
Modes
The electronic controller will automatically switch the fridge between Normal
and Energy Saving modes depending on use. If the front door (on the
electronic controller side) is not opened for four hours, the fridge will
automatically enter Energy Saving mode and the sign and interior lights will
switch off. To manually switch the fridge between Normal and Energy Saving
modes, press and hold the Energy Save (up) button on the electronic
controller faceplate. The fridge can also be bought into Normal mode by
holding the front door (on the electronic controller side) open for up to ten
seconds.
Compressor The compressor cycles on and off during Normal and Energy Saving modes.
It does not run when the fridge is in Defrost mode. If the electronic controller
displays “Err” there is a fault within the refrigeration system and the
compressor will not run.
Evaporator
Fan
The evaporator fan starts a few minutes after the fridge is turned on and runs
continuously while the compressor is running or during Defrost mode, and
cycles on and off while the compressor is off. It stops when the front door is
open or if the electronic controller displays “Err”, indicating a fault within the
refrigeration system.
Condenser
Fan
The condenser fan runs continuously when the fridge is on except if the
electronic controller displays “Err”, indicating a fault within the refrigeration
system.
Temperature
Probes
Two temperature probes feed data to the electronic controller – the control
probe and the evaporator probe. The control probe controls the fridge
temperature, provides the fridge temperature for the electronic controller to
display, and notifies the electronic controller of any erratic or abnormal
temperatures that could identify a problem within the refrigeration system.
The evaporator probe controls the refrigeration system defrost start and
finish.
Door Switch The fridge is fitted with a door switch below the front door (on the electronic
controller side). A small magnet in the door frame activates the switch. The
door switch tells the electronic controller to turn off the evaporator fan motor
(i.e. if door opened) during normal run operation, start Energy Saving mode
if the door is not opened for four hours and to reactivate Normal mode if the
door is opened for a period of time during Night mode.
Defrost Cycle The first automatic defrost occurs 3 hours after the fridge is switched on. During
the defrost cycle the compressor stops and the evaporator fan runs
continuously. The defrost cycle will stop when the evaporator probe reaches
≥4 °C or after the defrost cycle has been running for 20 minutes.
Lighting The fridge is fitted with bottom sign lights and interior pillar lights. The lights
will come on when the fridge is first plugged in. When in Normal mode the
sign and interior lights are on. When in Energy Saving mode the sign and
interior lights are off. Press the Light button on the electronic controller
faceplate to manually switch the sign and interior lights on and off (see
page 7).

9
SERENE SC112G
Electronic Controller
Service Manual
Messages and Alarms
Controller
Display
The following table explains messages that the electronic controller displays
and related alarms. Alarms signal unexpected operational changes in the
fridge and can be muted by pressing the Alarm Mute (up) button on the
electronic controller faceplate (see page 7).
Table 3: Controller display
Display Description
The fridge is in Normal mode and the electronic controller
displays the fridge temperature.
The fridge is in Energy Saving mode. When in Energy Saving
mode the temperature inside the fridge is moderated and the
cabinet lights turn off. You can switch the lights on and off by
pressing the light button on the controller faceplate, and switch
the fridge into Normal mode by pressing the Energy Saving
button on the electronic controller faceplate.
The front door has remained open for over two minutes. An alarm
sounds, and the compressor and evaporator fan turn off.
Control probe fault.
Evaporator probe fault.
There is a refrigeration system error and the controller turns the
fridge off to avoid damage. An alarm sounds, and the compressor
and evaporator fan turn off.

10 Electronic Controller
Service Manual
SERENE SC112G
Programming the Electronic Controller
Parameters The parameter configuration program is set by SKOPE at the factory. A label
on the controller box indicates the parameter configuration program number
(e.g. the SC112G fridge uses program 088).
The electronic controller parameters can be modified using the keypad.
Access to the parameters is protected by a password to prevent accidental
or unauthorised modifications. Only an authorised service agent should
modify the parameters.
Procedure 1: To access the parameters
1. Press and hold the Set (mute) button for 5 seconds until the display shows
PS (password)
2. Press the Set (mute) button. The display shows 0.
3. Use the ES (up) and Light (down) buttons to select password 22 (default
password).
4. Press the Set (mute) button to confirm the password. The display shows PS.
5. Use the ES (up) and Light (down) buttons to scroll the parameter codes and
locate the required parameter.
You can identify parameter categories by the initial symbol or letter of the code,
and the icon displayed on the electronic controller faceplate:
6. Press the Set (mute) button to display the value associated with the
parameter code.
7. Use the ES (up) and Light (down) buttons to increase or decrease the value
of the parameter.
8. Press the Set (mute) button to temporarily save the new value. The display
shows the parameter code.
Note: If no buttons are pressed for 60 seconds or the power is disconnected
before the temporarily saved values are permanently saved, the temporarily
saved values will be cancelled and the previous setting will be restored.
9. If necessary, repeat steps 5 to 9 to change other parameters as required.
10. Press and hold the Set (mute) button for 3 seconds to permanently save the
parameters and exit the parameter menu.
Category Initial Icon
Probe parameters / –
Control parameters r –
Compressor parameters c
Defrost parameters d
Alarm parameters A
Fan parameters F

11
SERENE SC112G
Electronic Controller
Service Manual
Parameter list – SC112G program 088
088 - SET0 - SC112G Revision: 1.3
This sheet is only for use in SKOPE product(s) SC112G
Controller Type SKOPE S4
Controller Model & Revision PZSKC0H001K (Rev 1.211)
SKOPE Part Number
ELZ11042-088
Setting
Unit
Access
Description of Parameter
Level
Min
Max
Probe Parameters
PS 22 -F
0
200
Password
/2 4 -C
1
15
Probe measurement stability
/4 1
-
C
1
3
Select probe displayed
/5 0 -C
0
1
Select °C/°F (0 = °C, 1 = °F)
/6 0 -C
0
1
Disable decimal point
/C1 3.5 °C/°F C -12.7°C 12.7°C
Probe 1 off set
/C2 0.0 °C/°F C -12.7°C 12.7°C
Probe 2 off set
Control Parameters
St 2.0 °C/°F F r1 r2
Set point
rd 3.0 °C/°F C 0.0°C 19°C
DAY differential
r1 0.0 °C/°F C -50.0°C r2
Minimum set point value
r2 4.0 °C/°F C r1 150°C
Maximum set point value
r4 1.0 °C/°F C 1°C 50°C
Night Mode set point delta
r5 4.0 °C/°F C 0°C 19.0°C
Night differential
r6 90 hrs F 0 90
Automatic Day to Night Mode: Time Period with Door Closed
r7 1 hrs F 1 90
Automatic Night to Day Mode: Time Period in Night mode
r8 10 sec C 0 90
Time allowed for door closure after entering Night mode via keypad
CCt 2.0 °C/°F H 0.1°C 20.0°C
CCP Mode: Temperature Delta
CCd 30 min H 0 199
CCP Mode: delay
Compressor Parameters
c0 2 min C 0 200 Compressor start delay on power-up
c1 6 min C 0 100 Minimum time between consecutive compressor starts
c2 5 min C 0 100 Minimum compressor off time
c3 0 min C 0 100 Minimum compressor on time
c4 20 min C 0 100 Compressor on time with duty setting
Defrost Parameters
d0 1 - C 0 2 Type of defrost
dI 3 hrs C 0 199 Compressor Runtime between Defrosts
dt 8.0 °C/°F C -50.0°C 127°C Defrost Termination Temperature
dP 60 min C 1 199 Maximum defrost duration
d4 0 - C 0 1 Defrost when switching the instrument on (0:no 1:yes)
d5 0 min C 0 199 Defrost delay on power-up (when d4=1)
d6 1 - C 0 1 Freeze temperature display during defrost
dd 3 min C 0 15 Dripping time
d8 0 hrs C 0 15 Bypass high and low temperature alarms (AH,AL) after defrost
d9 0 - C 0 1 Defrost priority over compressor protectors
d/ - °C/°F C - - Defrost probe reading
d10 -10.0 °C/°F C -50.0°C 127°C Start defrost condition: evaporator temperature threshold
d11 127 °C/°F C -50.0°C 127°C Enabling defrost condition: Control probe threshold
d12 30 min C A10 200 No Downward Tendency Defrost - Start Delay
d20 3 min H 0 200 Sample time of Tendency evaluation (minutes)
d21 1 - H 1 5 Number of allowed defrost before RSF alarm
d22 0.1 °C/°F H 1.0°C 5.0°C Temperature gap of Tendency evaluation (°C/°F)
Alarm Parameters
A0 2.0 °C/°F C -20°C 20°C Temperature Alarm Differential
AL 0.0 °C/°F C
-50°C
150°C
Low Temperature Alarm Setpoint. (Absolute if A0
≤0, relative A0>0)
AH 0.0 °C/°F C -50°C 150°C High Temperature Alarm Setpoint. (Absolute if A0≤0, relative A0>0)
Ad 0 min C 0 199 Temperature Alarm Delay
A10 2 min C 0 10 Open Door Alarm Delay
Fan Parameters
F0 3 sec C 1 100 Start delay when FAN ON is required by the Regulation
Fd0 100 min C 1 100 Fan DAY Duty Cycle : ON time
FdF 1 min C 1 100 Fan DAY Duty Cycle : OFF time
Fn0 100 min C 1 100 Fan NIGHT Duty Cycle : ON time
FnF 1 min C 1 100 Fan NIGHT Duty Cycle : OFF time
Configuration Parameters
H0 1 - C 0 207 Supervisor Serial address
H4 0 - C 0 1 Disable buzzer
H5 88 - C 0 199 ID code (read-only)
Warning:
1. Only make program modifications with reference to relevant Operating Manual.
2. This parameter sheet is exclusively for SKOPE refrigeration systems with its dedicated Carel controller.
3. Any alteration from this program may adversely affect the SKOPE Refrigeration System operation.
4. Specification may change without notice. Please check with Skope Customer Service for latest version.
2 July 2015
Electronic Controller Parameter Sheet
Parameter
Range
Last Revised on
088
Full List
SET0
CPS1016-088-SET0

12 Replacement Procedures
Service Manual
SERENE SC112G
3 Replacement Procedures
Shelves
Adjusting the
Shelves
The fridge is supplied with three wire shelves which may be positioned at
different heights to suit various products. Each shelf is held in place with four
shelf clips which engage in the corner shelf support strips.
Procedure 2: To adjust the cabinet shelves
1. Remove the shelves from the fridge.
2. Remove the shelf clips from the four shelf support strips at each corner of the
fridge interior.
3. Securely engage a shelf clip in each of the shelf support strips at the required
height.
4. Sit the shelves onto the shelf support clips.
Shelf clip
Shelf support strip
Shelf
Figure 2: Shelf detail

13
SERENE SC112G
Replacement Procedures
Service Manual
Lights
The fridge is lit by four interior pillar lights and two bottom sign lights. All
lights are powered by a 12Vdc LED power supply located within the
refrigeration system (see page 16). If one or several individual light/s fail on
a light strip, the remaining lights will still receive power and should work. If
an LED strip is damaged (and the circuit is broken) no lights will go (including
the sign lights). If all of the lights are off, check operation via the light switch
on the electronic controller (see page 8) before replacing LED strip lighting.
Interior Lights The cabinet interior is lit by four vertical corner pillar LED lights. Each corner
pillar light is made up of two LED strip lights (see page 31 for spare parts).
Procedure 3: To replace a single LED interior light strip
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Remove the shelves from the fridge.
3. Access the fridge interior
via the appropriate door
and unclip the diffuser to
expose the failed LED light
strip.
4. Unplug the failed LED strip
and unscrew from the pillar
to remove.
5. Fit the new light and plug it into the circuit.
6. Refit the diffuser and the shelves.
7. Test the cabinet for correct operation.

14 Replacement Procedures
Service Manual
SERENE SC112G
Bottom Sign
Lights
The fridge has two bottom lit signs, one at the front and one at the back.
Each sign is lit by one LED strip light (see page 31 for spare parts).
Doors
The fridge is fitted with a front and back door. The front door is on the
electronic controller side and is fitted with a door switch to monitor door
openings. The front door should be directed towards the customer. The rear
door is not fitted with a door switch and should face away from the customer.
It is used for restocking product.
Replacing
Door Gasket
The one-piece door gasket clips into the door frame and runs around the
perimeter of the door. You can remove the gasket by peeling it from the door
frame, starting at a corner.
If the gasket is out of shape after you fit it, use a hair dryer to heat and
reshape it.
Procedure 4: To replace a bottom sign light
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Remove the lower bottom
panel by undoing the three
fixing screws.
3. Remove the sign panel
and decal from the sign.
4. Unplug and unclip the LED
strip light, and remove
from the fridge.
5. Fit the new light and plug it into the circuit.
6. Reassemble the cabinet and test for correct operation.
Figure 3: Door gasket

15
SERENE SC112G
Replacement Procedures
Service Manual
Removing and
Fitting Doors
For ease of servicing the doors can be removed from the fridge.
Adjusting
Door Tension
Each glass door has an internal torsion bar, pretensioned at the factory, that
lets the door self-close. If necessary, the torsion can be adjusted by rotating
the capstan mounted at the bottom of the door.
Procedure 5: To remove a door
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Detach the top hinge from
the cabinet by opening the
door and undoing the two
fixing screws.
3. Lift the door up and off the cabinet.
Procedure 6: To refit a door
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Use a flat hex spanner or
strong 2 mm steel pin to
rotate the capstan about
half a turn in the direction
of door closing.
3. While holding the tension
with the spanner, slot the
capstan into the hole on
the bottom of the door
opening and lo`ck in place.
4. Reattach the top hinge and fix in place with two fixing screws.
5. Check the tension.
Procedure 7: To adjust the door tension
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Remove door from the cabinet (see Procedure 5).
3. Refit door to cabinet (see Procedure 6) adjusting the tension via the capstan
as necessary.

16 Replacement Procedures
Service Manual
SERENE SC112G
Refrigeration System
The SC112G refrigeration system is a bottom-mounted, electronically
controlled serviceable system. It is made up of three levels each containing
specific parts and assemblies. Specifications for the refrigeration system are
in the following table. Verify basic requirements before servicing.
Refrigeration Cartridge Assembly
Table 4: Refrigeration system specifications
Compressor ACC GVY66AA
Compressor capacity 235 Watts (@ -15°C SST) CECOMAF rating condition
Refrigerant R134a
Charge 135g
Bottom sign lights cables
Evaporator coil
Compressor
Surge protector
Evaporator tray
Condenser fan
Condensate tray
Control probe
Fan electrics box
(12Vdc power supply)
LED lights electrics box
(12Vdc power supply)
Electronic
controller
Electrics tray
Mains flexible cord
Electrics tray
Evaporator fan
Figure 4: Refrigeration
cartridge components

17
SERENE SC112G
Replacement Procedures
Service Manual
Refrigeration
System
Access
The following instructions explain how to access the refrigeration system.
Servicing can be completed by separating the top cabinet assembly from the
bottom refrigeration system.
Procedure 8: To access the refrigeration system
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Remove the front and back
lower bottom panels by
undoing the three fixing
screws and sliding them
down.
3. Remove the sign panel
and decal from the sign.
4. Remove the side lower
bottom panels by undoing
the three fixing screws and
sliding the panels down.
5. Unclip the upper bottom
panels.
6. Remove the front and back
light panels by undoing the
fixing screws.
7. Unplug the light panels.

18 Replacement Procedures
Service Manual
SERENE SC112G
Refrigeration
System
Dismantling
The refrigeration system is made up of three layers, each containing specific
components and parts as detailed in the table below:
Follow the instructions below to dismantle the refrigeration system and
access different levels.
8. Unplug the two plugs from
the front of the cabinet
above the electronic
controller.
9. Detach the top part of the
fridge by undoing the top
four screws from each
refrigeration system pillar
support bracket (16 screws
in total).
10. Lift the top cabinet assembly from the bottom refrigeration system. It may be
necessary for a second person to hold the bottom refrigeration system while
separating.
Procedure 8: To access the refrigeration system (continued)
1 2 3 4
Fixing screw Fixing screw
Table 5: Refrigeration system layers
Level Components and parts
1 (bottom) Compressor, compressor electrics, condensate tray, condenser coil.
2 (middle) Condenser fan, fan motor power supply electrics, LED light power
supply electrics, surge protector.
3 (top) Evaporator fan, evaporator coil.
Procedure 9: To dismantle the refrigeration system
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Separate the top cabinet assembly from the from the bottom refrigeration
system to access the refrigeration system (see Procedure 8 on page 17).
You can now access the components on level three.

19
SERENE SC112G
Replacement Procedures
Service Manual
3. Unclip and detach the
control probe and cable
from the evaporator
shroud.
4. Detach the evaporator
shroud by undoing the four
fixing screws. Place aside.
5. Free all pipes and cables
from the putty on the
evaporator tray edge.
6. Detach the drain pipe from
the bottom of the
evaporator tray, and
carefully pivot the
evaporator tray out from
under the evaporator coil.
7. Place the tray aside.
You can now access the components on level two.
6. Remove the two horizontal
struts from the sides of the
refrigeration system by
undoing the two fixing
screws from each strut.
7. Detach the mains flexible
cord from the base of the
assembly by undoing the
mains flexible cord bracket
fixing screw.
Procedure 9: To dismantle the refrigeration system (continued)

20 Replacement Procedures
Service Manual
SERENE SC112G
Evaporator
Fan
The evaporator fan is located on level three (the top) of the refrigeration
system. It is mounted on the evaporator shroud, on top of the evaporator
tray. The complete fan (motor and blade) is replaced as one part.
8. Undo the eight fixing
screws (two on each edge)
and detach the electrics
tray from the assembly.
9. Partially lift the electrics
tray and hold the capacitor
to detach the compressor
capacitor from the electrics
tray.
10. Tilt electrics tray up and
support with a block.
You can now access the components on level one.
Procedure 9: To dismantle the refrigeration system (continued)
Procedure 10: To replace the evaporator fan
1. Disconnect the fridge from the mains power supply by unplugging it from the
wall socket.
2. Separate the top cabinet assembly from the bottom refrigeration system (see
Procedure 8 on page 17).
3. Gain access to level three of the refrigeration system (see Procedure 9 on
page 18).
4. Detach the fan electrics
box, trace evaporator fan
cable to the fan electrics
box and unplug it.