Page 1
SK650-2
SKOPE Gen2: Single Door Chiller
Vertical Display and Storage
Operating and Service Manual
MAN0516 Rev. 3.0 August 2005 edition
Page 2
Page 3
SK650-2
SKOPE Gen2: Single Door Chiller
Designed and Manufactured by
New Zealand
SKOPE INDUSTRIES LIMITED
PO Box 1091, Christchurch
New Zealand
Freephone: 0800 947 5673
Fax: (03) 983 3896
E-mail: enquiry@skope.co.nz
Website: www.skope.co.nz
Australia
SKOPE AUSTRALIA PTY LTD
A.C.N. 000 384 270
PO Box 7543, Baulkham Hills B.C.
NSW 2153, Australia
Freephone: 1800 121 535
Fax: 1800 121 533
E-mail: enquiry@skope.com.au
Website: www.skope.com.au
CONTACT ADDRESSES
i
Page 4
SK650-2
SKOPE Gen2: Single Door Chiller
SK650-2
SKOPE Gen2: Single Door Chiller
Operating and Service Manual
MAN0516
Rev. 3.0 August 2005 edition.
Copyright © 2003
SKOPE Industries Limited.
All rights reserved.
SKOPE and CYCLONE are
registered trademarks of
SKOPE Industries Limited.
SKOPE Industries Limited reserve the
right to alter specifications without
notice.
ii
Page 5
SK650-2
SKOPE Gen2: Single Door Chiller
1 SPECIFICATIONS
1.1 Cabinet and Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . .7
2 OPERATION
2.1 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Operation of Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.3 Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.4 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3 ELECTRONIC CONTROLLER
3.1 Controller Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.2 Controller Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.3 Programming Controller . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.4 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.5 Alarm Displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3.6 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4 SERVICE INSTRUCTIONS
4.1 Interior Side Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
4.2 Door. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
4.3 Sign Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
4.4 Refrigeration Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
4.5 Pressure Temperature Chart . . . . . . . . . . . . . . . . . . . . . . . .42
4.6 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
TABLE OF CONTENTS
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SK650-2
SKOPE Gen2: Single Door Chiller
5 WIRING DIAGRAMS
5.1 Model: SK650-2 (Type V60BA) . . . . . . . . . . . . . . . . . . . . . 48
5.2 Model: SK650-2 (Type V60BB) . . . . . . . . . . . . . . . . . . . . . 50
6 SPARES
6.1 Cabinet Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.2 Interior Side Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.3 Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.4 Sign Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.5 Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.6 Refrigeration Unit Junction Box . . . . . . . . . . . . . . . . . . . . . 57
TABLE OF CONTENTS
Page 7
7
SK650-2
SKOPE Gen2: Single Door Chiller
1.1 Cabinet and Refrigeration Unit
Cabinet Construction
Exterior/Interior: White powdercoat on galvanised steel
Insulation:
50mm thick, polyurethane foam
Cyclo-iso Pentane blowing agent: C
5H10/C5H12
Dimensions
Height: 2195mm
Width: 740mm
Depth: 700mm
Floor area:
0.52m
2
Internal volume: 610 litres
Refrigeration Unit
SKOPE top mounted integral Cyclone® refrigeration unit:
Nominal capacity: 581 Watts
Compressor: Electrolux GLY90RA
Refrigerant: R134a / 450 grams
Electrical
230-240 Volts a.c. 50 Hz, single phase power supply
Run Amps: 2.77 Amps
Lighting
Single or twin sidelights: 35 Watt T5 fluorescent tube
(OSRAM FH 35W/860 Daylight) Ø16mm x 1450mm
Illuminated Sign
1 x 14 Watt T5 fluorescent tube
(OSRAM FH 14W/860 Daylight) Ø16mm x 550mm
Door
Self-closing, aluminium framed, double glazed, toughened safety glass
Shelves
5 x adjustable height, white plastic coated, steel wire shelves
Table 1: Specifications
SPECIFICATIONS
1
Page 8
8
SK650-2
SKOPE Gen2: Single Door Chiller
2.1 Safety Information
When using any electrical appliance, safety precautions should
always be observed. Read these instructions carefully, and retain for
future reference.
• When used by, or near, young children or infirm persons, close
supervision is necessary. Young children should be supervised
to ensure that they do not play with the appliance.
•Do NOT use this appliance for other than its intended use.
•Do NOT cover the grilles or block the entry or exhaust of airflow
by placing objects up against the refrigeration unit.
•Do NOT probe any opening.
• Only use this appliance with voltage specified on the rating label.
• Ensure adequate ventilation of the SKOPE refrigeration unit.
• Be careful not to touch moving parts and hot surfaces.
• Regulations require that all electrical work be carried out by
authorised persons. For your own safety, and that of others,
ensure this is done.
• If the supply cord becomes damaged, it must be replaced by a
SKOPE authorised service agent, or similarly qualified person,
in order to avoid a hazard.
• If the refrigeration units are required to be installed or removed
from the cabinet, ensure all necessary safety precautions are
observed.
Warning: Do NOT overload power supply.
Caution:
Disconnect the cabinet from the mains power supply before
attempting any cleaning or maintenance.
OPERATION
2
Page 9
9
SK650-2
SKOPE Gen2: Single Door Chiller
2.2 Operation of Machine
Plug in the cabinet and check operation of the refrigeration unit,
electronic controller and cabinet lights.
Refrigeration unit
The compressor and evaporator and condenser fans should all
operate initially. This may be verified by listening for compressor
switch on, and checking for air circulation inside the cabinet.
The compressor and condenser fan should switch off when the
cabinet internal temperature reaches approximately +2°C, and on
again at approximately +4°C. The internal cabinet air will continue to
circulate at all times.
Electronic controller
The electronic controller will either display the internal cabinet temperature or the controller set point. The compressor ‘on’ LED will
indicate that the compressor is operating (see Figure 2 on page 12).
Cabinet lights
The lights which illuminate the top sign and cabinet interior are
initially on, and will stay on permanently. The lighting will require a
period of time to stabilise following initial start up.
OPERATION
2
Page 10
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SK650-2
SKOPE Gen2: Single Door Chiller
2.3 Loading
The shelves may be positioned at different heights to suit various
products. Each shelf is held in place with four shelf clips. Always
ensure that the shelf clips are securely engaged in each of the four
shelf support strips. The support strips are marked with a ‘+’ for easy
location of the shelf clips (see Figure 1 below).
When loading the shelves with product:
• ensure to allow air space around all packages etc, for even
cooling and efficient operation.
• leave an airspace of at least 75mm (3") above packages etc. on
the top shelf.
• do not allow products to overhang the front of the shelf as this
could prevent the door from shutting or cause glass breakage.
OPERATION
2
Figure 1: Shelf Clip
Shelf Support Strip
Shelf Clip
‘+’ Mark
Shelf
Page 11
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SK650-2
SKOPE Gen2: Single Door Chiller
2.4 Cleaning
When necessary, wipe both interior and exterior of the cabinet with
a damp cloth. Ensure the cabinet is disconnected from the mains
power supply before cleaning the cabinet.
Do not wipe the sealant off the door gasket, as the sealant ensures
the door gasket forms a good seal with the cabinet.
Periodic cleaning of the condenser coil is also recommended.
Condenser coil
The condenser coil MUST be kept clean for efficient and reliable
operation. To ensure trouble free performance, it is recommended
that on a regular basis the cabinet be isolated from mains power
supply and a vacuum cleaner used to remove dust and fluff from the
condenser coil.
The condenser coil should be brushed clean once a month, and
blown clean by qualified service personnel, every six months. The
condenser coil is situated behind the sign unit. To access the
condenser coil:
1. Disconnect the cabinet from the mains power supply.
2. Loosen the sign retaining clip on the top of each side panel.
3. Lift the sign unit up, to disengage from the sign sides.
4. Disconnect the sign ENSTO plug from the electrical box socket,
and remove the sign unit from the cabinet.
Caution:
Disconnect the cabinet from the mains power supply before
cleaning the condenser coil.
OPERATION
2
Page 12
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SK650-2
SKOPE Gen2: Single Door Chiller
3.1 Controller Display
Item Key Function
1
SET: Press to display target set point. In programming mode it selects
a parameter or confirms an operation
2
DEFROST: Press to start a manual defrost
3
UP: Press to see the maximum stored temperature. In programming
mode it browses the parameter codes, or increases the displayed value
4
DOWN: Press to see the minimum stored temp. In programming mode
it browses the parameter codes, or decreases displayed value
5
Compressor on LED indicator
6
Defrost cycle on LED indicator
7
Set Point displayed LED indicator
8
Decimal point LED indicator
Key Combinations:
+
Press both keys simultaneously, to lock and unlock the keypad
+
Press both keys simultaneously, to enter the programming mode
+
Press both keys simultaneously, to return to room temperature display
Table 2: Controller Operation
ELECTRONIC CONTROLLER
3
1
35
2
4
Figure 2: Controller Display
6
7
8
Page 13
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SK650-2
SKOPE Gen2: Single Door Chiller
Meaning of LEDs
Each LED function is described in the following table:
LED Mode Function
ON Compressor enabled
Flashing Anti-short cycle delay enabled
ON Defrost enabled
Flashing Drip time in progress
Flashing Programming mode (see page 15)
ON The Set Point is displayed
Table 3: LED Functions
3.2 Controller Operation
The SKOPE electronic controller controls and displays the cabinet
temperature. The preset temperature setting controls internal air
temperature between 2°C and 4°C.
The electronic controller also signals and records temperature
alarms, t
ogether with their duration and maximum value reached
(see Table 5 on page 18).
To ensure efficient operation, the electronic controller has a built in
minimum off cycle time of 3 minutes and features regul
ar timed
defrost cycles. During the defrost cycle, the compressor switches off
and the evaporator fan stays on.
ELECTRONIC CONTROLLER
3
+
Page 14
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SK650-2
SKOPE Gen2: Single Door Chiller
3.3 Programming Controller
The controller keypad must always be locked, to prevent unauthorised modification.
To unlock the keypad (to modify parameters)
Press both the UP and DOWN keys until ‘Pon’
is displayed.
How to lock the keypad
1. Press and hold both the UP and DOWN
keys for more than 3 seconds.
2. The ‘PoF’ message will be displayed and
the keypad will be locked. At this point it will be possible only to
see the Set Point or maximum or minimum temperature stored.
3. If a key is pressed for more than 3 seconds, the ‘PoF’ message
will be displayed.
To display the Set Point
Press, and immediately release the SET key. The
display will show the Set Point value, and the Set Point
LED will be highlighted.
To change the Set Point
1. Push and hold the SET key for
more than 2 seconds.
2. The value of the Set Point will be
displayed, and the LED will start blinking.
3. To change the Set value, push the UP or DOWN keys.
4. To memorise the new Set Point value, push the SET key again
or wait 15 seconds.
ELECTRONIC CONTROLLER
3
Page 15
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SK650-2
SKOPE Gen2: Single Door Chiller
To start a manual defrost
Push and hold the DEFROST key for more than 2
seconds.
To change a parameter value
1. Enter the programming mode by
pressing and holding both the
SET and DOWN keys for 3 sec.
( and start flashing).
2. Select the required parameter.
3. Press the SET key to display the Set value (now only the
LED is flashing).
4. Press the UP or DOWN keys to change the Set value.
5. Press the SET key to store the new value and move to the
following parameter.
6. To exit: Press both the SET and UP keys, or wait 15 seconds
without pressing any keys.
7. To lock in new parameter value: after one minute operation,
disconnect and reconnect cabinet into the mains power supply.
NOTES:
1. The Set value is stored even when the procedure is exited by
waiting for the time-out to expire.
2. Dependent on customer requirements, the SKOPE electronic
controller has different parameter configurations. Parameter
configuration 160 = Beverage, 170 = Food, and 200 = Set Point
display (see ‘Controller Parameters’ in Table 4 on page 17).
To establish correct controller parameter configuration, see
label on controller housing (see Figure 3 on page 19).
ELECTRONIC CONTROLLER
3
Page 16
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SK650-2
SKOPE Gen2: Single Door Chiller
To see the minimum temperature
1. Press and release the DOWN key.
2. The ‘Lt’ message will be displayed, followed by the minimum
temperature.
3. Press the DOWN key again, or wait 5 seconds, to restore the
normal display.
To see the maximum temperature
1. Press and release the UP key.
2. The ‘Ht’ message will be displayed, followed by the maximum
temperature recorded.
3. Press the UP key again, or wait 5 seconds, to restore the
normal display.
To reset the maximum and minimum
temperature
1. Press and hold the SET key for more than 3 seconds, while the
maximum or minimum temperature is displayed. The ‘rSt’
message will be displayed.
2. To confirm the operation, the ‘rSt’ message starts flashing and
the normal temperature will be displayed.
ELECTRONIC CONTROLLER
3
Page 17
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SK650-2
SKOPE Gen2: Single Door Chiller
3.4 Parameters
Display SKOPE Setting Min Max Description of Parameter
SET POINT PARAMETERS
Set 2 °C LS US Set Point
Hy 2 °C 0.1°C 25.5°C Differential
LS -1 °C -50°C Set Minimum Set Point
US 15 °C Set 150°C Maximum Set Point
PROBE PARAMETERS
Ot 0.7 °C -12°C 12°C Thermostat probe calibration
OE 0 °C -12°C 12°C Condenser probe calibration
CONTROL PARAMETERS
OdS 0 Minutes 0 255 Outputs delay at start up
AC 3 Minutes 0 50 Anti-short cycle delay
DISPLAY PARAMETERS
CF °C °C / °F °C °F Temperature measurement unit
rES dE - in dE Resolution
LoD P1 - P1, P2 or SP Local display
DEFROST PARAMETERS
IdF 6 Hours 1 120 Interval between defrost cycles
MdF 12 Minutes 0 255 Maximum length for defrost
dFd dEF - rt, it Set, DEF Displaying during defrost
dAd 20 Minutes 0 255 Maximum display delay after defrost
ALARM PARAMETERS
ALc Ab - rE Ab Temperature alarms configuration
ALU 12 °C - 150°C Maximum temperature alarm
ALL -2 °C -50°C ALU Minimum temperature alarm
AtH 1 °C 0.1°C 25.5°C Differential for temperature alarm in cabinet
ALd 240 Minutes 0 255 Temperature alarm delay
dAO 24 - 0 Mins 23.5 Hours Delay of temperature alarm at start up
tbA n - n y Alarm relay silencing
PA2 58 °C -40°C AU2 Condenser over temperature
AU2 65 °C -40°C 110°C AUE Condenser alarm temperature
ACH 5 °C 0.1°C 25.5°C Differential for condenser alarm temp recovery
dL2 2 Minutes 0 255 Condenser alarm delay
dA2 0 hh:mm 0 Mins 23.5 Hours Condenser alarm temperature delay at start up
AOP CL - OP CL Alarm relay polarity
OTHER PARAMETERS
dP1 - °C - - Thermostat probe read out
dP2 - °C - - Condenser probe read out
rEL - - - - Software release
Ptb - - - - Map code
Table 4: Controller Parameters
ELECTRONIC CONTROLLER
3
Page 18
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SK650-2
SKOPE Gen2: Single Door Chiller
3.5 Display Alarms
A flashing LED indicates an alarm. Possible alarm displays are:
Alarm Description
Stage ONE - Ma
intenance required:
Immediately attend condenser (for auto alarm reset).
Stage TWO
- Refrigeration Shut-Down:
Condenser over-temperature has shut-down system and
ca
binet lighting. Attend condenser. To reset alarm, cabinet
must be replugged into power supply. For repeat alarms,
contact an authorised service agent.
Faulty Ambient probe (internal cabinet - return air)
Faulty High Temperature probe (condenser)
Internal cabinet - LOW temperature alarm
Internal cabinet - HIGH temperature alarm
Table 5: Controller Display Alarms
Note: The refrigeration system and cabinet lighting shut down with
‘P1’, ‘P2’ and ‘CSd’ alarms.
Alarm Recovery
• Condenser over temperature alarm ‘COH’ recovers when the
condenser is either cleaned or cools down.
• Condenser alarm ‘CSd’ temperature recovers by replugging the
cabinet power
supply (or isolation switch). In this case, all the
alarms are reset.
• Cabinet temperature alarms ‘LO’ and ‘HI’ automatically stop at
te
mperature recovery.
ELECTRONIC CONTROLLER
3
Page 19
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SK650-2
SKOPE Gen2: Single Door Chiller
3.6 Replacement
If the SKOPE electronic controller has a suspected fault, care must
be taken to ensure accurate diagnosis. The controller has various
programmable parameters that effect operation such as time delay
and defost modes. Any suspected failure must be double checked.
Confirm all wiring and terminations are correct. Check probe resistance is correct, and replace any faulty components.
Controller NTC probe resistance
Temperature
Resistance
(Ohms)*
-10°C 42.5
-5°C 34.0
0°C 27.3
5°C 22.1
10°C 18.0
20°C 12.1
30°C 8.3
40°C 5.8
50°C 4.2
* Tolerance: plus or minus2.4%
Table 6: NTC Probe Resistance
ELECTRONIC CONTROLLER
3
Figure 3:
Controller Housing (open)
Electronic Controller
Controller
Housing
Parameter Configuration Label
Page 20
20
SK650-2
SKOPE Gen2: Single Door Chiller
Controller removal
The electronic controller is mounted on the right hand side of the
cabinet control panel. The controller is contained inside a metal
housing which is attached to the control panel by two screws. To
reomove the controller:
1. Disconnect the cabinet from the mains power supply.
2. Remove the sign unit (see ‘To remove the sign unit’, page 31).
3. Undo the two screws underneath the control panel, directly
under the controller display, and lift the controller housing up
and forward to clear the control panel.
4. Remove the two top fixing screws from the housing, and bend
the housing lid back to gain access to controller connections.
5. Disconnect the terminals from the back of the controller, and
then remove the controller from the housing.
6. When re-fitting the controller, ensure the terminals engage
firmly into the back of the controller, and the housing lid is
screwed down to hold the controller firmly in place (see Figure
4 below).
ELECTRONIC CONTROLLER
3
Figure 4: Controller Housing (closed)
Controller Cable
Electronic Controller
Controller Housing
Probe Cables
Cord Grip
Top Fixing Screws
Housing Lid
Parameter Configuration Label
Page 21
21
SK650-2
SKOPE Gen2: Single Door Chiller
Replacement Controller
The Dixell XR30C, ELZ0471, controller has been replaced by the
Dixell XR30C, ELZ0471 Rev B electronic controller.
The Dixell XR30C ELZ0471 Rev B controller provides identical functionality in an essentially identical housing. The only difference in the
two models is the connection terminals at the rear of the controller.
The Dixell XR30C (see Figure 6) uses a low insertion force rightangled socket. The XR30C Rev B (see Figure 5) uses five standard
right-angled 6.3mm Q.C. PCB mount terminals, providing a more
reliable connection.
This change is effective from February 2005, cabinet serial no.
A050212714.
ELECTRONIC CONTROLLER
3
Figure 6:
Dixell XR30C ELZ0471
Rev A Controller
Figure 5:
Dixell XR30C ELZ0471
Rev B Controller
Page 22
22
SK650-2
SKOPE Gen2: Single Door Chiller
Dixell Controller Wiring
The wiring configuration has also been simplified to eliminate one of
the two external loop wires (see Figures 7 and 8 below).
Note: The arrangement of the order of the connections and position
of the external loop wire differs between the two variations. Howev
er, the connections at the refrigeration system electrical junction box
remain the same.
Figure 8:
Dixell XR30C ELZ0471
Rev A Controller
Figure 7:
Dixell XR30C ELZ0471
Rev B Controller
ELECTRONIC CONTROLLER
3
Page 23
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SK650-2
SKOPE Gen2: Single Door Chiller
4.1 Interior Side Light/s
The SK650-2 can have one or two interior side lights. Each side light
houses one 35 Watt T5 fluorescent tube, which may be replaced
without removing shelves or product from the cabinet. To replace the
fluorescent tube:
1. Disconnect the cabinet from the mains power supply.
2. Compress the back section of the diffuser, so that it disengages
from the aluminium housing and push the diffuser back, to gain
access to the light (see Figure 9 below).
3. The fluorescent tube can now be removed. Revolve the tube
until the pin position allows withdrawal.
4. When refitting the new fluorescent tube ensure the printing on
the tube is at the top, as the orientation of the tube is important.
5. When refitting the diffuser, engage back section into side light
housing, and compress and snap front section of diffuser back
into place working progressively down the full length of light.
SERVICE INSTRUCTIONS
4
Tube Holder
Fluorescent Tube
Diffuser
COMPRESS
PUSH
Figure 9: Interior Side Light
Page 24
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SK650-2
SKOPE Gen2: Single Door Chiller
4.2 Door
Alignment
Door alignment can be achieved by releasing the bottom hinge
bracket, which is provided with slots allowing alignment adjustment,
enabling the bottom of the door to be moved sideways.
Gasket replacement
The door gasket clips into the door gasket retainer extrusion and
may be removed for repair or replacement simply by peeling from
frame, starting at a corner (see Figure 10 below).
The new door gasket, when being fitted, may be lightly lubricated
with a clear silicone grease or similar compound. This will lessen the
possibility of the gasket rolling. Should the gasket be out of shape
when in place, use hot air (i.e. from hair drier) to realign.
SERVICE INSTRUCTIONS
4
Figure 10: Door Gasket Removal
Door Gasket
Gasket Retainer
Door Frame
Page 25
25
SK650-2
SKOPE Gen2: Single Door Chiller
Door tension
The glass door has an internal torsion bar, pretensioned at the factory, which enables the door to self-close. If necessary, door tension
can be further adjusted by rotating the capstan mounted in the
bottom hinge bracket (see Figure 11 below). To adjust door tension:
1. Slowly release tension on the capstan, by turning the capstan
with a Ø2.5mm steel rod, and removing the split pin.
2. With the aid of another Ø2.5mm steel rod, increase the tension
by turning the capstan in the direction the door closes.
3. Once adequate tension has been achieved, re-insert the split
pin through the hole in the hinge bracket, to lock in position.
4. To check door tension; hold the door open approximately
100mm and let go of the door. The door should gently close,
with the door gasket forming an air tight seal with the cabinet.
In the event the door tension can no longer be adjusted, the torsion
bar may need replacing (see ‘Torsion bar replacement’, page 26).
SERVICE INSTRUCTIONS
4
Figure 11: Door Tension
Capstan
Split Pin
Ø2.5mm
steel rod
Bottom Hinge Bracket
Door
Door
alignment
adjustment
screw
Page 26
26
SK650-2
SKOPE Gen2: Single Door Chiller
Torsion bar replacement
The torsion bar assembly is located inside the door frame, and can
be replaced if necessary. To replace the door torsion bar assembly:
1. Remove the door from cabinet (see ‘Door removal’, page 27).
2. Carefully lever out the bottom bush from the door frame, and
pull old torsion bar out from the door frame. The end of the
torsion bar will need manoeuvring, to allow the ‘flat hook’ end to
clear the hinge hole.
3. Remove existing capstan and bush from old torsion bar.
4. Thread the capstan, complete with the bush, over the ‘round
hook’ end of the new
torsion bar (see figure
12). Ensure the
aluminium tube moves
freely up and down the
torsion bar.
5. Fit the new torsion bar
assembly into the door
frame. When the
torsion bar is correctly
installed, the capstan
should not turn.
6. Lightly tap bottom of
capstan into hinge hole,
until the bush is flush
with door frame.
7. Refit the door to
cabinet, and adjust
tension (see ‘Door
tension’, page 25).
SERVICE INSTRUCTIONS
4
Figure 12: Torsion Bar Assembly
Aluminium Tube
Torsion Bar
‘Round Hook’ end
Bush
Capstan
Page 27
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SK650-2
SKOPE Gen2: Single Door Chiller
Door removal
For ease of servicing, and reversing hinging, the door can be
removed from the cabinet. To remove the door:
1. Disconnect the cabinet from the mains power supply.
2. Slowly release tension on the door capstan, by turning the
capstan with a Ø2.5mm steel rod, and removing the split pin
from the bottom hinge bracket.
3. Unscrew the bottom hinge. Important: ensure the weight of the
door is fully supported, before removing the bottom hinge.
4. The door and hinge can now be removed from the cabinet.
To refit the door:
1. Lift the door onto the top hinge pin. The weight of the door will
need supported, until the bottom hinge is fitted.
2. Locate bottom hinge onto door capstan, and attach to cabinet.
3. Check alignment with other doors, and adjust as necessary.
4. Re-tension the door (see ‘Door tension’ on page 25).
Hinge reversal
The glass door can be hinged on either the left or right hand side. To
reverse the door hinging opposite hand top and bottom hinges are
required.
1. Remove the door (see ‘Door removal’ above).
2. Remove the existing top and bottom hinges and replace with
the opposite hand hinges (see page 54 for part numbers).
3. Remove the torsion bar assembly from the door.
4. Refit torsion bar assembly into the opposite end of the door.
5. Refit top door bush.
6. Refit the door to the cabinet (see ‘Door removal’, above).
7. Re-tension the door (see ‘Door tension’ on page 25).
SERVICE INSTRUCTIONS
4
Page 28
28
SK650-2
SKOPE Gen2: Single Door Chiller
4.3 Sign Unit
The illuminated sign unit, located on top of the cabinet, houses a
fluorescent tube and electronic ballast. Internal access to the sign
unit may be gained with the sign unit still attached to the cabinet.
To replace the fluorescent tube
To access the fluorescent tube, the curved sign panel must first be
removed from the sign unit. No tools are required for this procedure.
To remove the sign panel:
1. Disconnect cabinet from the power supply.
2. Start at one of the top corners of the sign unit and pull the sign
panel out from under the sign top cover (see Figure 13 below).
3. Work along the length of the sign unit, pulling the sign panel out
as you go.
4. Carefully remove the sign panel away from the sign unit.
5. The fluorescent tube can now be accessed for replacement
(see Figure 15 on page 29).
SERVICE INSTRUCTIONS
4
Figure 14: Sign Corner Detail
Sign Top Cover
Corner Notch
Sign Panel
End Strip
Sign Panel
Figure 13: Removing Sign Panel
Sign Top Cover
Corner
Notch
Page 29
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SK650-2
SKOPE Gen2: Single Door Chiller
To refit the curved sign panel:
1. Ensure both sign end strips are fitted to the sign panel.
2. Carefully fit the sign panel into the bottom sign cover, ensuring
the sign end strips are correctly positioned in both of the bottom
corner notches.
3. Locate one top corner of the sign panel into the corner notch of
the top cover. Ensure the end strip fits neatly into the corner
notch (see Figure 14 on page 28).
4. Use your thumbs to push the sign panel under the top cover,
working progressively along the full length of the panel. Ensure
the sign panel engages into the sign top along the full length of
the sign unit.
5. Ensure both the sign end strips fit neatly into the top and
bottom corner notches (see Figure 14 on page 28).
SERVICE INSTRUCTIONS
4
Figure 15: Sign Unit (with sign panel removed)
Fluorescent Tube
Sign Top Cover
Sign Panel
Sign ENSTO 3-pole Plug
Sign Unit
Centre Tie Wire
Sign Bottom Cover
Sign Panel
End Strip
Sign Wiring Cover
Page 30
30
SK650-2
SKOPE Gen2: Single Door Chiller
To replace the electronic ballast
The electronic ballast is located inside the sign unit, mounted on the
back of the sign wiring cover. To access the electronic ballast:
1. Disconnect the cabinet from the mains power supply.
2. Remove the sign unit from the top of cabinet (see ‘To remove
the Sign Unit’ on page 31).
3. Remove the curved sign panel (see ‘To replace the fluorescent
tube’ on page 28).
4. Remove the centre tie wire (see figure 15 on page 29).
5. Remove the fluorescent tube, to avoid it being damaged.
6. Remove the sign wiring cover, by undoing the four screws from
the rear of the sign unit.
7. The electronic ballast, mounted on the back of the sign wiring
cover, can now be accessed for replacement (see Figure 16
below).
SERVICE INSTRUCTIONS
4
Figure 16: Electronic Ballast
Electronic Ballast
Sign Wiring Cover
Connector Block
Page 31
31
SK650-2
SKOPE Gen2: Single Door Chiller
To remove the sign unit
For ease of servicing, the complete sign unit can be removed from
the cabinet. To remove the sign unit:
1. Disconnect the cabinet from the mains power supply.
2. Reach over the top of the sign unit and unplug the sign ENSTO
plug from the socket on the left hand side of the unit junction
box (see Figure 17 below).
3. Loosen, and turn the sign retaining clip on the top of each of the
sign side panels (see Figure 18 below).
4. Lift the sign unit up, to separate the sign from the sign sides.
5. The sign unit can now be removed from the cabinet.
6. When refitting the sign unit, it’s easier to plug the sign ENSTO
plug into the unit junction box before attaching the sign to the
side panels.
SERVICE INSTRUCTIONS
4
Figure 17: Sign ENSTO Plug
Sign Retaining Clip
Sign Side Panel
Sign Unit
Figure 18: Sign Retaining Clip
Unit Junction Box
Sign ENSTO Plug
Page 32
32
SK650-2
SKOPE Gen2: Single Door Chiller
To remove the sign side panels
For ease of servicing the refrigeration unit, the sign side panels can
also be removed from the cabinet. To remove the sign side panels:
1. Disconnect the cabinet from the mains power supply.
2. Remove the sign unit (see previous page).
3. Remove the sign back panel, by lifting up to disengage from the
side panels (see Figure 19 below).
4. Loosen the two keyhole screws, holding each side panel to the
cabinet top (see Figure 20 below).
5. From the front of the cabinet, push the side panels back to
disengage the keyholes.
6. The sign side panels can now be lifted off the cabinet.
7. When refitting the side panels, ensure to refit the sign back
panel and to tighten the keyhole screws.
SERVICE INSTRUCTIONS
4
Figure 19: Sign Back Panel
Cabinet Top
Sign Side
Panel
Figure 20: Sign Side Fixing
Sign Back Panel
Keyhole
Screw
Page 33
33
SK650-2
SKOPE Gen2: Single Door Chiller
4.4 Refrigeration Unit
The SKOPE Cyclone® unit is a self-contained refrigeration module,
which aligns with port holes in the roof of the cabinet. Air is drawn
through the evaporator and blown down the back duct. Air returns to
the evaporator through the roof port hole.
To remove the refrigeration unit
1. Disconnect the cabinet from the mains power supply.
2. Unplug and remove the sign unit, and the sign back and side
panels (see ‘To remove the sign unit’ on page 31).
3. Unplug the cabinet supply ENSTO plug from the left hand side
of the unit junction box (see Figure 17 on page 31).
4. Unscrew the electronic controller (see page 20).
5. Unscrew unit retaining brackets, each side of evaporator box.
6. By using the diagonal white handles on either side of unit, lift
the unit up and off the cabinet. Avoid damage to the underside
sealing strip by not dragging the refrigeration unit. If damage to
the seal occurs, it must be repaired prior to re-installation.
To re-install the refrigeration unit
1. Ensure all cables, capillaries etc. are secured away from
moving or hot parts before replacing unit.
2. Lift unit up onto the top of cabinet, using the diagonal white
handles on either side of the unit, aligning the evaporator box
over the port hole in the cabinet top. Avoid damaging the
underside sealing strip, by not dragging the unit.
3. Refit screw to the unit retaining bracket, on each side of unit.
4. Refit the electonic controller to the control panel.
5. Refit sign unit, and reconnect sign plug to the unit junction box.
6. Reconnect the cabinet to the mains power supply.
SERVICE INSTRUCTIONS
4
Page 34
34
SK650-2
SKOPE Gen2: Single Door Chiller
Caution:
The refrigeration unit weighs approximately 40kg. Ensure care
is taken when removing the unit from the cabinet. Steps or
platform about 1 metre high are suggested, to allow the unit to
be safely lifted, carried and put down at waist height.
SERVICE INSTRUCTIONS
4
Figure 21: Refrigeration Unit
Unit Junction Box
Unit Handle
Condenser Fan Motor
Compressor
Mains
Supply
Flex
Evaporator Box
Unit
Retaining
Bracket
Cabinet and Sign Supply Sockets
Condenser Coil
Unit Base
Electronic Controller
Page 35
35
SK650-2
SKOPE Gen2: Single Door Chiller
Unit junction box
All electrical connections for the refrigeration unit are contained
inside the unit junction box, mounted on the front of the refrigeration
unit. To access the fan motor connections or to replace the fuse,
remove the unit junction box cover. To access the unit junction box:
1. Disconnect the cabinet from the mains power supply.
2. Undo the top and bottom screws from the unit junction box and
remove the cover, leaving the cover Earth wire still attached.
3. All electrical connections can now be accessed.
4. Ensure the unit junction box cover is replaced after servicing.
SERVICE INSTRUCTIONS
4
Figure 22: Unit Junction Box (with cover removed)
Fan Motor Flexes
Mains Flex
Cover Earth Wire
Fan Motor Capacitor
Junction Box Base
3 Amp Fuse
ENSTO 3-Way
Panel Adaptor
ENSTO 3-Way Socket
Page 36
36
SK650-2
SKOPE Gen2: Single Door Chiller
Condenser fan motor assembly
The condenser fan motor, fan blade, and mounting bracket can be
removed from the refrigeration unit as a complete assembly. To
replace the condenser fan motor assembly:
1. Disconnect the cabinet from the mains power supply.
2. Remove the cover from the refrigeration unit junction box.
3. Trace the condenser fan motor flex to the push-on connections
inside the unit junction box, and disconnect the terminals.
4. Withdraw condenser fan motor flex out of the unit junction box.
5. Undo the two top fixing screws from the mounting bracket.
6. Remove the clamp holding the liquid/drier line to top of the fan
shroud, and carefully pull the line forward enough to allow the
removal of the condenser fan motor assembly.
7. Remove complete condenser fan motor assembly.
8. Remove fan blade, and undo four screws holding fan motor.
9. Replace the fan motor capacitor inside the unit junction box.
SERVICE INSTRUCTIONS
4
Figure 23: Condenser Fan Motor Assembly
Condenser
Fan Motor
Liquid / Drier Line
Condenser Fan
Motor Assembly
Condenser Coil
Fixing Screws (2)
Clamp
Fan Blade
Page 37
37
SK650-2
SKOPE Gen2: Single Door Chiller
Evaporator fan motor assembly
The evaporator fan motors can be removed from the evaporator box
as a complete assembly. To replace an evaporator fan motor:
1. Disconnect the cabinet from the mains power supply.
2. Remove the cover from the refrigeration unit junction box.
3. Trace the evaporator fan motor flex to the push-on connections
inside the unit junction box, and disconnect the terminals.
4. Remove the evaporator box lid.
5. Undo two top screws from the mounting bracket, and remove
complete evaporator fan motor assembly (see Figure 24).
6. Undo two screws from motor junction box, and disconnect flex.
7. Remove the fan blade and undo four screws holding fan motor.
8. Replace the fan motor capacitor inside the unit junction box.
9. When refitting the evaporator fan motor assembly reseal the
flex hole in evaporator box, before refitting the evaporator lid.
SERVICE INSTRUCTIONS
4
Figure 24: Evaporator Fan Motor
Assembly
Figure 25: Evaporator Motor
Junction Box
Evaporator Fan Motor Assembly
Evaporator Motor Junction Box
Evaporator Motor Flex
Evaporator Motor
Fan Blade
Evaporator
Box
Flex Hole Seal
Fan Motor Capacitor
Page 38
38
SK650-2
SKOPE Gen2: Single Door Chiller
Cleaning the condenser coil
The condenser coil MUST be kept clean for efficient and reliable
operation. To ensure trouble free performance, it is recommended
that on a regular basis the cabinet be isolated from mains power
supply and a vacuum cleaner used to remove dust and fluff from the
condenser coil.
The condenser coil should be brushed clean once a month, and
blown clean by qualified service personnel, every six months. The
condenser coil is situated behind the sign unit. To access the
condenser coil:
1. Disconnect the cabinet from the mains power supply.
2. Loosen the sign retaining clip on the top of each side panel.
3. Lift the sign unit up, to disengage from the sign sides.
4. Disconnect the sign ENSTO plug from the unit junction box
socket, and remove the sign unit from the cabinet.
SERVICE INSTRUCTIONS
4
Figure 26: Condenser Coil
Condenser Coil
Evaporator Box
Unit Handle
Controller Cables
Page 39
39
SK650-2
SKOPE Gen2: Single Door Chiller
Recommended Service Procedures
SKOPE recommend the SKOPE Cyclone® demountability and
exchangeability philosophy, which in essence means:
The customer must not be inconvenienced during system
maintenance.
In the unlikely event of Refrigeration failure, an exchange unit is
simply swapped in a matter of minutes. There is no cabinet down
time or unloading product. In one 5 minute visit, the customer's
inconvenience ends. The faulty Cyclone® is then removed to the
workshop for repair as time allows.
For a suspected refrigerant problem
Disconnect the evaporator fan motor and with the system running, a
‘frost line’ will become obvious (after approximately 8 minutes):
Entire evaporator and accumulator must be frosting. Compressor at
suction inlet will be cold and sweating.
If these conditions are not met, the system is faulty, either short of
refrigerant, compressor not pumping efficiently, or capillary restric
tion. The system must then be opened (see Refrigerant R134a
Handling Precautions section) and gauges temporarily fitted (i.e.
either temporarily fit line piercing valves, or braze in service lines).
Short of refrigerant
Where the frosting effect is shorter than required (unless all refrigerant is lost, where there is no frosting effect). Only a small amount of
refrigerant will exit the system. A leak test (refrigerant / dry nitrogen
mix, up to 250 psig) should be performed to locate the leak. If no leak
is found, a pressure test should be performed (dry nitrogen only, up
to 250 psig) if there is no pressure drop over 24 hours, the fault
should be treated as a capillary restriction.
SERVICE INSTRUCTIONS
4
Page 40
40
SK650-2
SKOPE Gen2: Single Door Chiller
Compressor not pumping efficiently
Where the frosting effect is not as cold as it should be. Symptoms
include: compressor body hotter than normal, condenser cooler
than normal, and the compressor may make an unusual hissing
sound. All of these symptoms depend on the severity of the problem.
The only way to prove a pumping problem is to perform a compressor pump-down test: braze closed compressor suction line, Open
discharge line; then run the compressor to pull a vacuum on a vacu
um gauge. The compressor should pull down to approximately 30"
(inches) vacuum then turn the compressor off and this vacuum must
be held without any loss for 5 minutes. If the Compressor does not
pass these tests; it is not pumping efficiently and must be replaced.
There are different methods to proving pumping efficiency. If the test
is performed with a system charged with refrigerant, a deep vacuum
will not be achieved.
Capillary restriction
With a totally blocked capillary, there will be no refrigeration effect. A
partially blocked capillary may have similar symptoms to a system
being short of refrigerant. Flush a restricted capillary with dry nitro
gen. If the capillary will not clear, it must be replaced.
After the repair, the drier must be replaced (every time the refrigeration system is opened, the drier must be replaced). The Cyclone®
must be fully evacuated and charged to the volume of refrigerant
indicated on the Cyclone® serial/rating label. All service lines must
be purged.
Finally, pinch-off the gauge process lines (or remove line piercing
valves) and braze the system closed. SKOPE recommend against
leaving service valves in the system as these are prone to leak (and
are open to abuse). Perform a final system leak test.
SERVICE INSTRUCTIONS
4
Page 41
41
SK650-2
SKOPE Gen2: Single Door Chiller
Refrigerant R134a handling precautions
It is important to maintain dedicated HFC service equipment and
parts:
• Refrigeration gauges
• Service lines / Fittings
• Vacuum Pump
• Charging equipment
•Driers
• Compressors
• Temperature / Pressure chart
HFC (R134a) refrigeration systems require special service procedures because of the highly hygroscopic (moisture sensitive) polyolester (POE) compressor oil:
• The system (especially compressor) must only be open for the
very minimum time (to prevent moisture ingression). All parts
required for servicing must be at hand - before the system is
opened, and there should be no interruption until the system is
on the vacuum pump (or hermetically sealed).
• The system must not be open for longer than 20 minutes max.
• The drier must be replaced every time the system is opened.
• Clean work practices are essential.
• SKOPE recommend brazing the system closed after service - as
valves are prone to leak due to the nature of R134a.
Important:
Every time the refrigeration system is opened the drier MUST be
replaced.
SERVICE INSTRUCTIONS
4
Page 42
42
SK650-2
SKOPE Gen2: Single Door Chiller
4.5 Pressure Temperature Chart
TEMPERATURE R134a R404A
°F °C KPa psig KPa psig
-29.2 -34 -32 9.4 71 10
-27.4 -33 -28 8.4 79 11
-25.6 -32 -25 7.3 86 13
-23.8 -31 -21 6.2 94 14
-22.0 -30 -17 5.0 103 15
-20.0 -29 -13 3.8 111 16
-18.4 -28 -9 2.6 120 17
-16.6 -27 -4 1.3 129 19
-14.8 -26 0 0.0 138 20
-13.0 -25 5 0.7 148 21
-11.2 -24 10 1.4 158 23
-9.4 -23 15 2.2 168 24
-7.6 -22 20 2.9 179 26
-5.8 -21 26 3.7 189 27
-4.0 -20 31 4.5 200 29
-2.2 -19 37 5.4 212 31
-0.4 -18 43 6.3 224 32
1.4 -17 49 7.2 236 34
3.2 -16 56 8.1 248 36
5.0 -15 63 9.1 261 38
6.8 -14 69 10.0 274 40
8.6 -13 77 11 .0 288 42
10.4 -12 84 12.0 302 44
12.2 -11 91 13.0 316 46
14.0 -10 99 14.0 331 48
15.8 -9 107 16.0 346 50
17.6 -8 11 6 17.0 361 52
19.4 -7 124 18.0 377 55
21.2 -6 133 19.0 393 57
23.0 -5 142 21.0 410 59
24.8 -4 151 22.0 427 62
26.6 -3 161 23.0 445 65
28.4 -2 171 25.0 463 67
30.2 -1 181 26.0 481 70
32.0 0 192 28.0 500 73
33.8 1 202 29.0 519 75
35.6 2 213 31.0 539 78
37.4 3 225 33.0 559 81
39.2 4 237 34.0 580 84
41.0 5 249 36.0 601 87
42.8 6 261 38.0 623 90
44.6 7 274 40.0 645 94
46.8 8 287 42.0 668 97
48.2 9 300 44.0 691 100
50.0 10 314 46.0 715 104
SERVICE INSTRUCTIONS
4
Table 7: Pressure Temperature Chart
Page 43
43
SK650-2
SKOPE Gen2: Single Door Chiller
4.6 Troubleshooting
Complaint Possible Cause Repair
1. Cabinet not
operating
- lights etc. not
going.
Loss of power supply. Check power supply.
Refrigeration shut-down. Condenser
over-temperature has shut-down
system and cabinet lighting.
Attend condenser. To reset
alarm, cabinet must be replugged into power supply.
2. Compressor
will not start
- no hum.
Fuse removed or blown. No power. Replace fuse. Check reason.
Overload protector tripped. Refer to electrical section.
Thermostat stuck in open position. Repair or replace control.
Thermostat off, due to cold location. Relocate control.
Wiring improper, or loose. Check wiring against diagram.
3. Compressor
will not start
- hums but trips
on overload
protector.
Improperly wired. Check wiring against diagram.
Low voltage to unit. Determine reason and correct.
Start capacitor defective on CSIR or
CSR motor.
Determine reason and replace.
Run capacitor defective on PSC
motor.
Determine reason and replace.
Relay failing to close. Determine reason and correct.
Replace if necessary.
Compressor motor has a winding
open or shorted.
Check resistance values.
Replace compressor if necessary.
Internal mechanical trouble in compressor.
Replace compressor.
SERVICE INSTRUCTIONS
4
Table 8: Troubleshooting (continued on next page)
Page 44
44
SK650-2
SKOPE Gen2: Single Door Chiller
4.6 Troubleshooting
Complaint Possible Cause Repair
4. Compressor
starts, but
does not
switch off
- start
winding.
Improperly wired. Check wiring against diagram.
Low voltage to unit. Determine reason and correct.
Relay failing to open, due to welded
contacts or relay incorrectly
mounted.
Determine reason and correct.
Replace if necessary.
Run capacitor defective on CSR
motor.
Determine reason and replace.
Excessively high discharge pressure.
Clean condenser. Check power
input. Possible overcharge,
insufficient condenser cooling,
or non-condensible gasses.
Compressor motor has winding open
or shorted. Check continuity and
resistance.
Replace compressor if faulty.
Internal mechanical trouble in compressor (tight). May be lubrication.
Replace compressor.
5. Compressor
starts and
runs, but
short cycles
on overload
protector
(relay may
chatter on
RSIR, CSIR
and CSR
motors).
Additional current passing through
overload protector.
Check wiring diagram. Check
for added fan motors etc.,
connected to wrong side of
protector.
Low voltage to unit. Determine reason and correct.
Overload protector defective. Check current, replace
protector.
Run capacitor defective on CSR
motor.
Determine reason and replace.
Excessive discharge pressure. Check condenser, check
ventilation, check for restrictions
in refrigeration system.
Suction pressure too high. Check for possibility of
misapplication.
Compressor too hot - insufficient
suction gas cooling.
Check refrigerant charge (fix
leak), add if necessary. Check
return vapour temperature and
suction superheat.
Comp’r motor has a winding shorted. Replace compressor.
SERVICE INSTRUCTIONS
4
Table 8: Troubleshooting (continued on next page)
Page 45
45
SK650-2
SKOPE Gen2: Single Door Chiller
4.6 Troubleshooting
Complaint Possible Cause Repair
6. Unit runs OK,
but short
cycles.
Overload protector. Check compressor overload
and relay.
Thermostat: requires adjustment or
incorrectly positioned.
Adjust or relocate thermostat
probe.
7. Unit operates
long or continuously.
Unsatisfactory
cabine
t tem-
perature.
Short of refrigerant. Fix leak, and add charge.
Overcharge of refrigerant. Remove refrigerant to correct
charge.
Thermostat not reading
temperature correctly.
Check air temperature with
thermometer. Adjust offset if
required.
Evaporator has excessive load. Establish load within limits.
Evaporator coil iced. Defrost evaporator, check
refrigeration. Check
thermostat. Check door
closing, seals etc. Check
defrost.
Restriction in refrigeration system. Determine location and clear
restriction. Flush with dry
nitrogen. Replace component
if blockage will not clear.
Dirty condenser. Clean condenser. Advise client
how to regularly clean
condenser.
Inadequate air circulation. Internal: Improve air
movement, allow airflow
around stock.
External: Remove any
restrictions to condensing
ventilation.
Compressor not pumping
efficiently.
Replace compressor.
Filter dirty (if applicable). Clean or replace.
Faulty fan motor. Check rotation. Replace if
necessary.
SERVICE INSTRUCTIONS
4
Table 8: Troubleshooting (continued on next page)
Page 46
46
SK650-2
SKOPE Gen2: Single Door Chiller
4.6 Troubleshooting
Complaint Possible Cause Repair
8. Start capacitor
open, shorted
or blown.
Relay contact not opening
properly.
Clean contacts, or replace
relay if necessary.
Prolonged operation on start cycle
due to:
(a) Low voltage to unit.
(b) Improper relay.
(a) Determine reason and
correct.
(b) Replace relay.
Excessive short cycling. Determine reason for short
cycling, and correct.
Improper capacitor. Determine correct size and
replace.
9. Relay defective
or burned out.
Incorrect relay. Check and replace.
Line voltage too high or too low. Determine reason and correct.
Excessive short cycling. Determine reason, and correct.
Relay being influenced by loose
vibrating mount.
Remount rigidly.
10. Suction line
frosted.
Evaporator fan not running. Determine reason and correct.
Overcharge of refrigerant capillary
systems.
Correct charge.
11. Unit noisy. Loose parts or mountings. Find and tighten.
Tubing rattle. Reform to be free of contact.
Bent fan blade causing vibration. Replace blade.
Fan motor bearing worn. Replace motor.
SERVICE INSTRUCTIONS
4
Table 8: Troubleshooting
Page 47
47
SK650-2
SKOPE Gen2: Single Door Chiller
Notes
SERVICE INSTRUCTIONS
4
Page 48
48
SK650-2
SKOPE Gen2: Single Door Chiller
5.1 Model: SK650-2 (Type V60BA)
WIRING DIAGRAMS
5
Page 49
49
SK650-2
SKOPE Gen2: Single Door Chiller
5.1 Model:
Item Part Description Item Part Description
1 Sign Unit Assembly 17 Start Capacitor
2 Lamp Holder (4) 18 NTC
3
14 W T5 Fluorescent
Tube (860 Daylight)
19 Run Capacitor
4 Single Electronic Ballast 20 Start Relay
5 Foamed Cabinet 21 Compressor - Electrolux
6 Refrigeration Unit 22 Compressor Over-Load
7 Evap Motor Bracket Ass’y 23 Unit Junction Box
8 Capacitor 24 Cabinet Step Wiring
9
Evaporator Fan Motor
(anti-clockwise - LE) *
25 3-Way Connector (2)
10
Evaporator Fan Motor
(clockwise - LE) *
26 Electronic Controller
11
Condenser Fan Motor
(clockwise - LE) *
27 Cabinet Temp Probe
12 3-Way ENSTO Socket (2) 28 Condenser Temp Probe
13 3 Amp Fuse 29 Glass Door Assembly
14 Mains Terminal Block 30 Door Frame Heater Wire
15 RFI Capacitor (optional) 31 Side Light Assembly
16 Mains Flex and Plug 32
35 W T5 Fluorescent
Tube (860 Daylight)
SK650-2 (Type V60BA)
* LE denotes motor orientation as viewed from the lead end.
WIRING DIAGRAMS
5
Page 50
50
SK650-2
SKOPE Gen2: Single Door Chiller
5.2 Model: SK650-2 (Type V60BB)
WIRING DIAGRAM
5
Page 51
51
SK650-2
SKOPE Gen2: Single Door Chiller
5.2 Model: SK650-2 (Type V60BB)
Item Part Description Item Part Description
1 Sign Unit Assembly 18 NTC
2 Lamp Holder (6) 19 Run Capacitor
3
14 W T5 Fluorescent
Tube (860 Daylight)
20 Start Relay
4 Single Electronic Ballast 21 Compressor - Electrolux
5 Foamed Cabinet 22 Compressor Over-Load
6 Refrigeration Unit 23 Unit Junction Box
7 Evap Motor Bracket Ass’y 24 Cabinet Step Wiring
8 Capacitor 25 3-Way Connector (4)
9
Evaporator Fan Motor
(anti-clockwise - LE) *
26 Electronic Controller
10
Evaporator Fan Motor
(clockwise - LE) *
27 Cabinet Temp Probe
11
Condenser Fan Motor
(clockwise - LE) *
28 Condenser Temp Probe
12 3-Way ENSTO Socket (2) 29 Glass Door Assembly
13 3 Amp Fuse 30 Door Frame Heater Wire
14 Mains Terminal Block 31 Side Light Assembly
15 RFI Capacitor (optional) 32
35 W T5 Fluorescent
Tube (860 Daylight)
16 Mains Flex and Plug 33 Double Electronic Ballast
17 Start Capacitor
* LE denotes motor orientation as viewed from the lead end.
WIRING DIAGRAMS
5
Page 52
52
SK650-2
SKOPE Gen2: Single Door Chiller
6.1 Cabinet Assembly
Part Description SKOPE P/No. Customer P/N.
Control Panel V60BA/789E-CU
SKOPE Badge V5000/770BF-99
Cabinet Wiring Junction Box:
- Single Side Light
- Twin Side Light
V60BA/G29
V60BB/G29
Single Electronic Ballast ELZ0605
Double Electronic Ballast ELZ0606
Junction Box Base V60BA/G30-GT
Junction Box Cover V60BA/G31-GT
Cabinet Supply Flex V60BA/X03
ENSTO 3-Pole Plug ELZ0500-3
Ballast Cover V60BA/E06
Shelf WRKV6000/J70
Shelf Bracket V0973-99
Shelf Support Strip ALXV5000/150
Swivel Castor SXX4339
SPARES
6
Page 53
53
SK650-2
SKOPE Gen2: Single Door Chiller
6.2 Interior Side Light
Part Description SKOPE P/No. Customer P/No.
T5 Side Light Assembly - L/H V50BA/L85-32
T5 Side Light Assembly - R/H V50BA/R85-32
35 Watt T5 Fluorescent Tube ELL0604
T5 Lampholder ELZ0600
Side Light Cover V50BA/E71
SPARES
6
Page 54
54
SK650-2
SKOPE Gen2: Single Door Chiller
6.3 Door
Part Description SKOPE P/No. Customer P/No.
Glass Door Assembly V61BA/Z06R
Door Frame Assembly V60BA/D01/1
Door Gasket GKT0432N
Door Heater Element ELE9932
Torsion Bar Assembly REF5014
Bush PLM5075
Capstan TUR5100
Split Pin FAS5076
Gasket Retainer - Vertical V50BA/765
Gasket Retainer - Horizontal V6000/766
Top Hinge Blank - L/H V80BA/390B
Top Hinge Assembly - R/H V50BA/388
Top Hinge Assembly - L/H V50BA/389
Bottom Hinge - R/H V50BA/393
Bottom Hinge - L/H V50BA/394
SPARES
6
Page 55
55
SK650-2
SKOPE Gen2: Single Door Chiller
6.4 Sign Unit
Part Description SKOPE P/No. Customer P/No.
Sign Unit Assembly (packed) V60BA/S21
Sign End - R/H V50BA/S23
Sign End - L/H V50BA/S24
Sign Reflector V60BA/C23
Curved Sign Panel (PVC) V6000/S27V
Wiring Cover V60BA/C26-32
Sign Side - R/H V50BA/182R
Sign Side - L/H V50BA/182L
Sign Top / Bottom Panel V60BA/S26
Sign Back Panel V60BA/C53
Sign Panel Edge Strip RUE3704CL-ME
14 Watt T5 Fluorescent Tube ELL0601
T5 Lamp Holder ELZ0600
Single Electronic Ballast ELZ0605
ENSTO 3-Pole Plug ELZ0500-3
SPARES
6
Page 56
56
SK650-2
SKOPE Gen2: Single Door Chiller
6.5 Refrigeration Unit
Part Description SKOPE P/No. Customer P/No.
Refrigeration Unit Assembly UT40AAC-160ZX
Unit Base UT40AA/210-32
Unit Retaining Bracket V60BA/226
Evaporator Box Assembly UT40AA/376
Evaporator Lid Assembly UT40AA/225
Evaporator Brace (straight) V5500/227-32
Evaporator Brace (angled) V55BA/227-32
Evaporator Assembly UT40AA/R39
Evaporator Coil CLS0752
Evaporator Motor ELM9917
Motor Capacitor ELC9142NC
R/H Fan Blade (CW) FAN4100
L/H Fan Blade (ACW) FAN4101
Suction Line UT40AA/379A
Compressor: Electrolux CPR0464P
Electrolux Relay ELR9943NC
Run Capacitor ELC9941NC
Start Capacitor ELC9942NC
Overload Protector PLM9944NC
Drier DRY8783
DIXELL Electronic Controller ELZ0471SP
DIXELL NTC Probe ELZ0472
Controller Flex Assembly UT40AA/K19
Condenser Assembly UT40AA/R38
Condenser Coil CLS9929
Condenser Motor ELM9917
R/H Fan Blade (CW) FAN7355
SPARES
6
Page 57
57
SK650-2
SKOPE Gen2: Single Door Chiller
6.6 Refrigeration Unit
Part Description SKOPE P/No. Customer P/No.
Unit Junction Box Assembly UT40AA/R86
Junction Box Base UT40AA/R87-GT
Junction Box Cover UT40AA/R88-GT
Motor Capacitor ELC9142NC
3 Amp Ceramic Fuse ELZ9654
Fused Terminal Block ELZ9655
ENSTO Socket ELZ0499-3
ENSTO Panel Adaptor PLM0497-3
Controller Flex Assembly UT40AA/K19
Mains Flex UE40AA/E53
Junction Box
SPARES
6
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