CUBE ICEMAKER MODELS
CC130 CC270 CC450 CC900 CC1800
INSTALLATION
AND
SERVICE MANUAL
Revision 6
STUART MANUFACTURING
1 Jayelem Crescent
Padstow NSW 2211
Australia
Telephone (02) 9773 3711
Fax (02) 9773 4400
www.stuman.com.au
TABLE OF CONTENTS
PAGE
Specifications 1
Installation Instructions 2
Adjustments 3
Operation of Machine 4 - 5
Trouble Shooting 6 - 8
Logic Board Flow Chart 9 - 10
Main Circuit Function Diagram 11
Wiring Diagrams 12 - 18
Parts List 19
SPECIFICATIONS
MODEL
WATER
PRESS URE
All Models Minimum: 70 kpa
Maximum: 850 kpa
OPERA TING
TEMPERATURE
All Models Minimum: 1 degree Celsius
Maximum: 43 degrees Celsius
FAN PRESS URE
CONTROL
All Models Cut in: 1500kpa
Cut out: 1200kpa
WATER
CONNECTIO N
REQUIREMENTS
All Models 3/4” BSP male stop cock
DRAINAG E
All Models 25mm dia meter PVC
1
CC130 CC270 CC450 CC900 CC1800
ELECTR ICAL
REFRIGERATION
SUCTION
PRESS URE
@ 21 deg. C
FLOODED
EVAPORATOR
240 volts
50 hz
3.8 amps
R-22
580g
200kpa
240 volts
50 hz
8.0 amps
R-22
925g
200kpa
240 volts
50 hz
12.0 amps
R-22
2000g
260kpa
415 volts
50 hz
10 amps/ph.
R-22
4500g
260kpa
415 volts
50 hz
18 amps/ph.
R-22
———
260kpa
INSTALLATION INSTRUCTIONS
LOCATION
1. All models, allow a minimum of 250mm above for correct ventilation.
2. Machine must be LEVEL.
3. Incoming water temperature affects ice production. Therefore, avoid above ground
plumbing and pipes exposed to direct sunlight.
4. Make sure drain hose has no kinks and has a fall to floor waste.
START-UP PROCEDURE
1. ENSURE MACHINE IS LEVEL
2. Connect water hose and turn on water.
3. Remo ve front and side panels.
4. Turn on power.
5. Wait for about 10 seconds, then press and hold RESET b utton for about 5 seconds.
The machine should now be in normal icemaking mode. i.e. the compressor and
water pump should both be running.
6. Allow machine to complete two (2) cycles before making any adjustments.
NOTE: On some models the top ice cubes may be slightly thinner than the bottom ice
cubes. This is quite normal.
2
ADJUSTMENTS
There are only two (2) adustments which can be made to the machine, Water Purge and Ice
Thickness.
WATER PURGE
Water p urge should be set at approximately 5-10% of the weight of ice per cycle (Check
chart below for recommended ice block weight) As the water purge is time activa ted, it will
vary with water pressure.
To check the water purge, hold a measuring cup under the overflow hose and catch the
waste water at the end of the fill cycle. The cup should be held there fo r at least five (5)
minutes as the waste water may take some time to stop running. The purge adjustment is
lo cated on the control panel just above the fault light.
Adjustment is made using a small screwdriver to turn the adjusting screw to increase or
decrease as indicated.
ICE THICKNESS
The correct weight of ice per cycle has been factory set with the machine LEVEL. If the
machine is not installed level this can alter the weight (size) of the ice.
NOTE: Refer to chart below for correct ice weights.
Adjustments are made by moving the adjustable float up or down. The adjustable float is
lo cated at the water pump e nd of the trough.
To make the ice thicker i.e. heavier, loosen the brass thumb screw and lower the float.
To make the ice thinner i.e. lighter, raise the float.
The graduated scale on the float is only a n indicator to show how far the float has moved.
When mak ing a ny adjustments, it is recommended that you only move the float one (1)
graduatio n at a time.
After making any adjustments, tighten the thumb screw to ensure the float cannot move.
ICE WEIGHT (Total both slabs)
CC130 CC270 CC450 CC900 CC1800
1,300g 2400g 4,800g 9,600g 19,200g
3
OPERATION OF MACHINE
NOTE: All b uttons on the control panel have a built in five (5) second delay. i.e. each
button must be depressed for five (5) seconds before the function will be activated.
When the power is first switched on, nothing will happen for about five (5)
seconds. During this time the electronics will perform a self-diagnostic
check.
WARM UP CYCLE
Once the self-diagnostic check is complete the machine will go into warm up
mode. In this mode the compressor is on, hot gas va lve open, water p ump and
fill solenoid off.(Defrost cycle) The compressor will run for two (2) minutes
and will then s witch off. The pump will start and nothing else will happen
for a further three (3)minutes. At the end of this period the machine will
automatically switch to the ICE MAKE CYCLE. On initial start up the warm up
cycle can be cancelled by pushing the reset button.
WHY A WARM UP CYCLE?
The warm up cycle has been designed in the software:
(a) to protect the machine from damage in the event of a power failure during the
freezing cycle. By using the WARM UP (defrost) CYCLE when power is
restored, any ice which had formed on the icemaking plates before the power
failure will be fully removed before the ICE MAKE CYCLE recommences.
(b) because if a fault (3,4 or 5) occurs, the machine will have two (2) attempts at
completing the function before shutting down and displaying a fault number. If,
on the second attempt, the same fault is not detected, the machine will revert to
the ICE MAKE CYCLE and continue to run. Therefore, by using the
WARM UP CYCLE between attempts on faults 4 and 5 the machine will not
make a double ice slab.
ICE MAKE CYCLE
The display will remain this way during the whole of the icemaking
cycle until:
(a) the ice storage bin is full, at which time the numbe r 7 is displayed.
As soon as ice is removed from the storage bin, allowing the flaps to close,
the machine will go back to the start of the ICE MAKE CYCLE.
NOTE: The machine will only go into the ICE BI N FULL MODE after a defrost
and both flaps must be closed before it will return to the ICE MAKE CYCLE.
7
4
5
4
1
2
3
ERROR CODES
As described above, the software is designed to ma ke two (2) atte mpts to complete each function, WA TER
FILL, MAKE ICE and DEFROST before shutting down and displaying a fault number. If on the second
attempt the same fault is detected, the machine will shut down and display one of the following fault numbers:
Did not fill with water in t ime
Did not make ice in time
Did not defrost in time
NOTE!
If an error 3 occurs, the machine will attempt to fill every hour until the water supply is restored.Therefore, if
the water supply is interupted after hours, the machine may be functioning normally the ne xt morning and th e
only evidence of a problem may be a s hortage of ice in the bin. If this becomes a regular occurrance, then the
caus e of the interuption should be rectified.
For more detailed information on the operation of the machine, refe r to the OPERATIONA L FLOW CHARTS
on pages 8 and 9.
CLEAN CYCLE
Cleaning of the icemaker is reco mmended on a regular basis, at least twice each year.
To clean th e icemaking plates, remove the front and right hand side panels .
Ensure the machine is in normal icemaking mode (No. 2 on the display)
Press and hold defrost button until icemaking plates are free of ice.
Drain water fro m trough until base of water pu mp is just covered.
Add “Scale Kleen” or other approved icemaker cleaner to water trough. (It is recommended that “Scale Kleen”
or other approved cleaner be mixed in a bucket with hot water to s peed cleaning cycle)
Press the CLEA N button, the compressor stops and leaves the water pump running.
Allow cleaner mixture to circulate until the icemaking plates are clean.
When the icemaking plates are clean, remove the drain plug and allow cleaner to drain to a bucket.
Whilst draining, additional water can be supplied to the trough by pressing the FILL button. The water will
stop flowing approximately five (5) seconds after the fill button is released. This feature is particularly us efull
for flushing the system after clean ing.
When cleaning is complete, press the reset button and the machine will revert to ICE MAKE M ODE.
NOTE: It is not necess ary to re move the curtain flaps to perf orm the cleaning operation.
This operation is best performed when th e ice storage bin is empty to prevent ice from being contaminated by
the cleaning solution.
Whilst the icemaker cleaner is circulat ing, us e a soft brush or vacuum cleaner to remove dus t from condenser.
Care should be taken not to damage the fins on the condenser as this may cause a restriction and affect the
performance of the icemaker.
Alternatively, compressed air or CO2 can be used to blow dus t from the condenser. If this method is used the
compress ed air or CO2 should be applied to the back of the condenser to blow the dust out the front.
CAUTION! Eye protection and dust mask sho uld be used if blowing dust from condens er.
If a water f ilter has been fitted to the machine, the cartridge should also be replaced regularly. Cartridge life
will vary greatly depen ding on the type of cartridge and incoming water quality.
A cartridge of not more than 5 microns and containing a scale inhib itor is reco mmended.
3
4
5
5
6
TROUBLE SHOOTING
MICROPROCESSOR DIAGNOSTICS
The 2nd generation logic board has a non volatile memory which stores a fault history for the icemaker, plus
other diagnostics s uch as total machine running hours , number of cleaning cycles perfor med and number of
icemaking cycles.
ACCESSING DIAGNOSTIC DISPLAY
To access th e diagnostic display:
1. Ensure the mach ine is in normal icemaking mode. 2
2. Press and hold down both the FILL and CLEAN butto ns.
3. W hen the display shows 0 releas e both buttons.
4. Push the DEFROST button to change the display to the desired diagnostic number as listed below
NUMBER DIAGNOSTIC FUNCTION
0 Displays the fault history for the last 5 machine errors. (First to last)
1 Displays a 5 digit mach ine hour counter.
2 Displays the number of cleaning cycles performed.
3 Displays the number of harvest cycles.
5. W hen the des ired diagnostic number is displayed, push and release the RESET button.
6. The selected diagnostic value is disp layed on the numeric display.
7. To cancel the diagnostic function, press the RES ET button again.
CHECKING OPERATION OF REED SWITCHES
The curtain flap switches and the high and low floats have indicator (red LED) lights on the main circuit board.
To check the operation of these switches, set the machine in the W ARM UP CYCLE with no water in the
water trough.
CURTAIN FLAP SWITCHES
By moving the water curtains ,the lights marked FLAP 1 and FLAP 2 should be on when the curtain is closed
and off when the curtain is about 10 to 15mm open.
LOW FLOAT
With the low float all the way down, the indicator light should be off, but by moving the float up the
indicator light shoul d come on.
NOTE: If the reverse is happening, the float itself is around the wrong way. Remove the clip at the bottom,
take the float off and re-install the float the other way round.
HIGH FLO AT
With the float in down pos ition, the light shoul d be off, but by moving the float up, the light shoul d come
on.
NOTE: If the reverse is happening, rotate the whole float switch as s embly 180degrees
6
TROUBLE SHOOTING
ELECTRONIC CIRCUIT BOARDS FUSE - MAIN CIRCUIT BOARD
The main c ircuit board is protected by a fuse. If this fuse should blow it will isolate the whole machine.
The correct replacement fuse is a slow blow HRC Cera mic. Refer parts list for correct size.
DO NOT USE GLASS TYPE FUSES
When changing circuit boards ensure that:
(a) The inco ming active goes to the relay tab marked COM.
(b) The ribbon cable con necting the two boards is correctly orientated, i.e. red cable on top of main
c ircuit board and on bottom of the control board.
7
TROUBLE SHOOTING
ERROR 3
DID NOT FILL WITH WATER IN TIM E (3 Minutes)
(1) Water supply turned off
(2) Water supply line restricted or frozen
(3) Blocked strainer in water s oleno id
(4) Faulty water solenoid
(5) Faulty high level float
(6) High level float installed incorrectly - needs rotating 180 degrees
ERROR 4
DID NOT MAKE ICE IN TIME (40 Mi nutes )
(1) Partial loss of refrigerant
(2) Faulty fan motor
(3) Dirty condenser
(4) Faulty compres sor
(5) Hot gas solenoid stuck open
(6) Restricted capillary tube or expansion valve
(7) Faulty water pu mp
(8) Faulty low float
ERROR 5
DID NOT D EFROST IN TIME (5 Minutes)
(1) Faulty hot gas solenoid
(2) Dirty ice making plate(s)
(3) Faulty curtain flap switch
(4) Partial loss of refrigerant
(5) Ice too thin - will not open water curtain
8
START (Power Up)
RUN SEL F TEST PRO CEDURES
SELF TEST CHECKS OK
COMPRESSOR, HOT GAS & TIMER ON
FILL SOLENOID & PUMP OFF (2 Min s.)
WAIT FOR START UP TIMER
COMPRESSOR & HOT GAS OFF
WATER PUMP ON (3 Mins.)
ICE MAK E CYCLE STARTS
IS BIN FULL ?
YES
FILL ON, COMPRESSOR ON, PUMP OFF
HOT GAS ON, START FILL TIMER
FILL SOLENOID & PUMP OFF
SET ICEMAKER ERROR TIMER
COMPRESSOR & PUMP ON
MANUAL DEFROST
BUTT ON PUSHED
YES
CLEAN BUTT ON
YES
HAS ICE MAKE
TIMER TIMED OUT?
YES
HAS THE CORRECT AMOUNT OF W ATER
BEEN USED TO MAKE ICE?
YES
SET DEFROST
PUMP OFF, HOT GAS SOLENOID ON
BOTH FLAP SWITCHES OP ERAT ED?
YES
DID BOT H FLAPS CLOSE AFTER
OPENING?
YES
WAIT FOR CORRECT QUANTITY OF WATER
IN TRAY OR FILL TIMER TO TIME OUT
NO
CANCEL TIMER
RESET BUTTON P USHED?
YES
COMPRESSOR, HOT GAS & TIMER OFF
FILL SOLENOID ON
GO TO FILL ERROR
DIDN’T FILL IN TI ME
GO TO MANUAL DEFROST
GO TO CLEAN
GO TO ERROR
DEFROST TIMER
TIMED OUT ?
GO TO ERROR
NO
YES
NO
BIN FULL
COMPRESSOR, PUMP, FILL OFF
HOT GAS SOLENOID ON
NO
NO
GO TO BIN FULL
9
CLEAN CYCLE
CLEAN BUTT ON P RESSED
FILL & PUMP ON, COMPRESSOR OFF
IS WATER TROUGH FULL?
YES
NO
FILL SOLENOID OFF
MANUAL FILL BUTTON PRESSED? FILL ON
YES
NO
RESET BUTTON P USHED?
NO
YES
RET URN TO ICE MAKE CYCLE
ERRORS
DID NOT FILL IN TIME
COMPRESSOR, FILL AND PUMP OFF
DISPLAY ERROR CODE 3
RE-TRY EVERY HOUR
DID THE T ROUGH FILL?
RET URN TO ICE MAKE CYCLE
YES
NO
RESET BUTTON P USHED?
NO
YES
DID NOT MAKE ICE IN TIME
DID NOT DEFROST IN TIME
COMPRESSOR, FILL & PUMP OFF
IS THIS T HE FIRST TIME IN T HE CURRENT
ICEMAKE CYCLE T HIS ERROR
DISPLAY APPROP RIATE ERROR CODE
WAIT FOR RESET BUTTON TO BE PUSHED
AFT ER RESET BUTTON PUSHED
RET URN TO ICE MAKE CYCLE
GO TO
ST ART-UP
YES
NO
10
11
12
13
14
15
16
17
18
PARTS LIST
DESCRIPTION
Compressor
Fan/motor assy.
Fan moto r (plastic cow l)
Fan blade (plastic cowl)
Fan control
Solenoid valve - water
Solenoid valve - hot gas
Capillary tube
Exp ans ion valve
Power board
Logic board
Interface board
Fuse - 3.15 amp
Fuse - 5 amp
Switch - water curtain
Magnet - water curtain
Float - high level
Float - low level
Pump - water
CC130
050346
050348
———
———
050326
050023
050347
1.4mm
2625mm
———
050009
050010
———
050011
———
050043
050065
050043
050045
050046
CC270
050383
050348
———
———-
050326
050023
050347
1.78mm
2500mm
———
050009
050010
———
050011
———
050043
050065
050043
050045
050046
CC450
050153
050348
050151
050152
050326
050023
050126
———
———
050309/310
050009
050010
———
050011
———
050043
050065
050043
050045
050046
CC900
050402
050146
———
———
050326
050023
050133
———
———
050309/310
050009
050010
050148
———
050180
050043
050065
050043
050045
050086
CC1800
050493
———
———
———
050326
050023
050234
———
———
050309/310
050009
050010
050148
———
050180
050043
050065
050043
050045
050086
19
MANUFACTURER’S LIMITED LABOUR AND PARTS WARRANTY
STUART COMMERCIAL ICEMAKERS
Model CC130, CC270, CC450, CC900, CC1800
CERISUN PTY. LTD. trading as STUART MANUFACTURING at 1 JAYELEM CRESCENT PADSTOW
warrants to the original owner/user that any STUART commercial icemaker manufactured on or after January 1st 1997 shall be free of defects in material or workmanship under normal and proper use and mainte-
nance service as specied by STUART MANUFACTURING and upon proper installation and start-up in
accordance with the instruction manual supplied with the Product.
The obligation under this warranty is limited to:
(1) associated and approved labour costs for a period of two years after original installation date;
(2) the repair and or replacement of parts or assemblies that in the opinion of STUART MANUFACTURING are defective, for a period of two years after the date of original installation;
(3) the supply or repair of the electronic control board(s) for the lifetime of the Product.
The labour warranty shall include straight time labour charges at the product location only and shall exclude
charges for travel time, mileage or other premium charges.
Any labour required to full the warranty obligation must be performed by a refrigeration service company
qualied and accepted by STUART MANUFACTURING.
This warranty does not include parts or labour coverage for components failure or other damage resulting
from:
* external electrical power failure or miswiring to the Product for any reason
* external water supply failure or plumbing problems to the Product for any reason
* external drain line malfunction
* adverse operating conditions as set forth in the owner/user manual for the Product.
All claims for labour or parts must be made through the original reseller. The defective part for which reimbursement is claimed, together with the service invoice, must be returned to STUART MANUFACTUR-
ING, freight pre-paid, within fteen days from date of service to be eligible for labour and parts warranty
coverage. All replacement parts must be approved STUART parts. Incidents of failure that do not require
the replacement of a part shall be explained in sufcient detail on the service invoice to identify the failure.
All claims shall include the product model number, serial number, original date of installation and customer
identication.
The foregoing warranty shall not apply to:
Faults caused by dirty water distribution systems or icemaking plates
Adjustments to ice thickness or purge levels caused by incorrect installation.
(3) any part or assembly
(a) that has been altered, modied or changed
(b) that has been subjected to misuse, abuse, neglect or accidents or
(c) any Product or part on which the serial or model number has been removed or altered
(4) any Product that has been installed and/or maintained inconsistant with STUART technical publications
(5) any product that has been installed or is located outside Australia.
The two years compressor parts warranty shall not apply when the Product’s refrigeration system is modied
with a condenser, heat reclaim device, or parts and assemblies other than those manufactured by STUART
MANUFACTURING unless STUART MANUFACTURING has accepted modication for specic installa-
tion in writing.
STUART MANUFACTURING assumes no liability for misuse or inadequate maintenance of the Product.
In no event shall the owner/user be entitled to recover incidental or consequential damages, including but
not limited to damages for inconvenience, ice purchase, rental or replacement equipment, loss of prots or
other commercial loss.
Warranties stated above are the only warranties made in connection with the sale and distribution of the
Products.
ANY AND ALL OTHER EXPRESSED, STATUTORY AND IMPLIED WARRANTIES APPLICABLE TO
THE PRODUCT, INCLUDING, WITHOUT LIMITATIONS, ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE ARE EXPRESSLY DISCLAIMED.
The warranty information set forth above shall be governed by and construed in accordance with the laws of
the state of NSW and, if applicable the laws of Australia. The labour warranty, as stated is extended only to
the original owner/user and is not assignable to any other owner or user.
WARRANTY CLAIM GUIDELINES
Model CC130, CC270, CC450, CC900, CC1800
As from January 1st 1993 all STUART ICEMAKERS will carry a standard two years warranty. This covers
two years labour, two years on parts and two years on compressor failure, provided warranty conditions are
met and installation is in accordance with published standards.
All dates are from the date of installation. This date is assumed to be a maximum of eight (8) weeks from the
date of invoice to the dealer.
Warranty claims are conditional on the following:
(1) All claims for labour or parts must be made through the original reseller.
(2) The defective part must be returned with the service invoice to STUART MANUFACTURING,
freight pre-paid, within 15 days of date of service. Details of End User, Model, Serial Number and Date of
Installation of the product must be provided with the claim.
(3) All replacement parts must be detailed and be approved STUART parts.
(4) All labour only claims must be explained in sufcient detail on the service invoice to properly identify the nature of the failure.
(5) The labour warranty includes standard straight time charges at the installation location only and does
not include charges for travelling time, mileage or other premium charges.
(6) When consumables such as driers,refrigerant etc. are supplied by the service agent, the cost allowed
will be the
Refrigeration Wholesalers list price only.
(7) If a compressor is faulty and requires replacement, the service agent MUST contact Stuart Manufacturing before obtain ing a replacement.
The warranty will not apply in the following circumstances:
(1) When any part, assembly or ice machine:
(a) has been altered, modied or changed
(b) has been subject to misuse, neglect or accident
(c) where the serial number or other identication has been removed or altered.
(2) When the product has been installed and or maintained in a manner inconsistant with the approved
procedure or STUART technical publications.
(3) The two years compressor warranty will not apply where the refrigeration system has been modied
with a condenser, heat reclaim device or part or assembly not approved by STUART MANUFACTURING.
GENERAL
As from 1st January, 1993 the following warranty will apply to all spare parts:
(a) Replacement parts exchanged while the original equipment is still under manufacturers warranty will be
covered on a pro-rata basis up to the warranty expiration of equipment in which they are installed.
(b) Warranty on spare parts other than the above is three (3) months from the date of installation as evidenced by suitable documentation or eight (8) weeks from the invoice date of sale to the dealer.
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