®
ICE FROST
Post-Mix and Pre-Mix
Installation, Service, and Operator’s Manual
Release Date: April 19, 2004
Publication Number: M620919596OPR
Revision Date: October 19, 2006
Revision: C
TABLE OF CONTENTS
Important Warnings and Advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Plate data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Transportation Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connecting the Electricity Mains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ice Frost Generic (Pre-mix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ice Frost Generic (Post-mix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Bowl Loading Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ice Frost Generic (Pre-mix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ice Frost Generic (Post-mix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Brix Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Programming Electronic Touch Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
To Enter Time Programming on Initial Installation or in the Event of Service . . . 9
Setting COLD Timer (Night Setting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operate in Automatic Mode (with COLD Timer Activated) . . . . . . . . . . . . . . . . 10
Operate in Manual Mode (without COLD Timer Activated) . . . . . . . . . . . . . . . . 10
Setting the 12 or 24 Hour Display and oF or oC Temperature Display . . . . . . 10
Viewing the Bowl Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Consistency Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Quarterly Cleaning and Sanitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Post Mix Systems Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Special Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Restricted Air Flow Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electronic Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electronic Bowl Monitoring and Safety System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pressure and Level Control Card General Features . . . . . . . . . . . . . . . . . . . . . . . . 17
OFF Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1st Filling Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Managing the Bowl Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety Probes (only for Ice Frost Generic Pre-mix) . . . . . . . . . . . . . . . . . . . . . 19
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
VFCB (Pre-Mix) 115V/60Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
VFCB (Post-Mix) 115V/60Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
VFCB (Pre-Mix) 230V/50Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
VFCB (Post-Mix) 230V/50Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Ice Frost Operator’s Manual
IMPORTANT WARNINGS AND ADVICE
This instruction manual represents an integral part of the equipment and must be kept readily available
for use.
Read the warnings contained herein carefully before installing and using this equipment.
In addition to offering information concerning routine maintenance for the ice slush drinks machine and
technical back-up for troubleshooting, this manual aims to help the user make the most of the machine’s
potential, adapting it to suit the specific needs of the various countries it will be used in.
Modifications or attempts to modify the equipment will not only result in the forfeiture of the guarantee,
but are also extremely dangerous.
The maintenance operations must be carried out by qualified professionals. Never attempt to repair the
machine yourselves as the intervention of non-qualified persons, as well as being hazardous, could also
lead to serious damage to the machine.
TECHNICAL DATA
PLATE DATA
The voltage and the frequency are indicated on the serial number plate, located on the refrigeration deck
and the right hand side near the controls.
TRANSPORTATION INDICATIONS
To prevent the oil contained in the compressor from flowing out into the cooling circuit, the equipment
must be transported, stored, and handled in a vertical position, as per the indications given on the
packing.
The wooden pallet, equipped with housing for the lifting forks, allows the packed equipment to be moved
using normal handling and hoisting means.
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
INSTALLATION
1. Remove the equipment from the packing, then slide it off
upwards (see FIGURE 1).
2. Checking the machine identification after removing the
packing, you must check that the equipment you have
received is exactly as you ordered, making sure the
specifications indicated on the invoice or the delivery note
are identical to those on the data plate.
FIGURE 1
3. Equipment accessories
The following accessories are included inside the bowls:
• This instruction manual;
• 1 tube of Vaseline to be used for the maintenance machine the requires;
• A drip tray.
The back-lit cover is packed separately from the machine.
4. Positioning - make sure the machine’s bodywork is well ventilated, at least 6”, and do not install
near heat sources.
We recommend you keep the room temperature at between 59 and 77°F.
IMPORTANT: All the pieces of packing must be kept out of reach of children as they represent
potential hazards.
5. Remove gear motor shipping pins and tags from the rear of the unit prior to installation.
CONNECTING THE ELECTRICITY MAINS
Before inserting the plug into the mains socket for your own
safety you must take careful note of the following precautions.
•
The machine’s electrical system can only be considered safe
when it is connected correctly to a grounded outlet, as
provided for by the national safety regulations. The
manufacturer cannot be held responsible for any damages
that may be caused by failure to earth the system.
•
For the system to be installed correctly and safely, it is
essential to provide a suitable socket having a dedicated 20
Amp circuit which complies with the national safety
standards in force (see FIGURE 2).
FIGURE 2
•
•
Check the power supply cable to make sure it is not being crushed, do not use extension cords and, to
remove the plug, first turn OFF the switch, then hold the plug tightly and pull gently.
Do not obstruct the ventilation and the heat dissipation grids as bad airing, in addition to reducing the
output and causing bad functioning, could also lead to serious damage to the equipment.
IMPORTANT: If the power supply cord is damaged, it must be replaced by qualified persons only
to prevent any possible risks.
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
CONNECTION DIAGRAMS
Ice Frost Generic (Pre-mix)
The diagram shows the sequence for the connection between the ICE FROST GENERIC PRE to an
existing pre-mix system.
FIGURE 3
Description:
1. Pre-mix product 1 inlet.
2. Pre-mix product 2 inlet.
4. Inlet for CO2 (coming from the pressure reducing valve, 12 psi).
5. CO2 gas cylinder.
6. Operating pressure gauge.
7. CO2 pressure regulator.
8. Gas cylinder pressure gauge.
9. Pre-mix product 1 container.
10. Pre-mix product 2 container.
11. Cooling unit (Optional).
Connection:
Connect the points 1, 2, and 4 on the machine to the existing pre-mix system using quick couplings.
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
Ice Frost Generic (Post-mix)
The diagram shows the sequence for the connection between the ICE FROST GENERIC POST to an
existing post-mix system.
FIGURE 4
Description:
1. Syrup 1 inlet.
2. Syrup 2 inlet.
3. Soda water inlet.
4. Inlet for CO2 45 to 60 psi.
5. CO2 gas cylinder.
6. Operating pressure regulator for carbonation unit.
7. Carbonation unit operating pressure gauge.
8. Unit and BIB operating pressure gauges.
9. Pressure regulator.
10. Gas cylinder operating pressure gauge.
11. Water Pressure regulator.
12. Filter.
13. Carbonation unit and optional precooling unit.
14. Syrup 1 pump.
15. Syrup 2 pump.
16. Bag-in-box exchanger.
17. Bag-in-box exchanger.
18. Bag-in-box.
Connection:
Connect the points 1, 2, 3, and 4 on the machine to the existing post-mix system using quick couplings or
.265 splice connectors.
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
Alarms
Safety Probe Alarms (only for ICE FROST GENERIC Pre-mix)
You will remember that the monitoring of the safety probes’ conditions (satisfied/ not satisfied) is only
active during the bowl loading phase. It follows, then, that a lack of liquid in the tanks during the non-
loading phases will not be signalled.
When one of the two safety probes fail to detect the flow (presence) of liquid during the loading phase,
the system will stop (3-second software filter) the loading phase in progress, while the buzzer on the
machine emits an intermittent warning signal lasting 6 seconds.
The fill solenoid connected to the system where the lack of liquid has been detected by the safety probe
input can only be energized by switching the system OFF then ON again (cycling power resets fill
operation).
If both the safety probes fail to detect a presence of liquid while the bowls are loading, the buzzer on the
card will emit an intermittent sound lasting approximately 20 seconds.
The bowl fill solenoids are command (OFF). The normal operation conditions can be restored by
switching the machine OFF then ON again using the main switch.
The bowl pressure valve solenoid valve is independent of the alarm signal and continues its
CO2 gas pressure reading function only.
1st Filling Time-out
A time limit has been set for the first filling phase which is linked to the level probes detection of the
presence of liquid.
When one of the two level probes fails to detect the presence of liquid for more than four seconds, the
buzzer on the card will emit an intermittent sound for approximately 6 seconds.
The fill solenoid connected to the system where the lack of liquid has been detected by the safety probe
input can only be reset by switching the system OFF then ON again.
When both the level probes fail to detect a presence of liquid for more than four seconds, the buzzer on
the card emits an intermittent sound lasting approximately 20 seconds.
All the solenoids linked to the system are inhibited (bowl fill and CO2 gas management valves = OFF).
The normal operating conditions can be resumed by switching the system OFF and then ON again.
Filling Time-out
A time limit has been set for the normal filling phase which is linked to the level probes SLIV 1 and SLIV
2’s detection of the presence of liquid.
When one of the two level probes fails to detect the presence of liquid for more than one minute, the
buzzer on the card will emit an intermittent sound for approximately 6 seconds.
The fill solenoid connected to the system where the lack of liquid has been detected by the safety probe
input can only be energized by switching the system OFF then ON again.
When both the level probes fail to detect a presence of liquid for more than on minute, the buzzer on the
card emits an intermittent sound lasting approximately 20 seconds.
The bowl fill solenoids are command (OFF). The normal operating conditions can only be resumed by
switching the system OFF and then ON again.
The CO2 gas management valve solenoid valve is independent of the alarm signal and
continues its CO2 gas pressure reading function only (see relevant paragraph).
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
“FILTER CLEANING” Alarm
A filter cleaning alarm will activate when the unit is running hot due to insufficient internal air circulation.
When this occurs a “Filtr” message will appear on the touch pad LED display readout and an intermittent
tone will also sound to alert the operator of this condition.
The “Filtr” message will appear when the alarm activates (a beeping sound every 4-5 seconds). To
determine the condition that caused the alarm and correct problem, see list of conditions below:
Condition
Corrective Action
•
•
The filter is dirty and needs to be cleaned.
• Clean and replace filter following instructions
(Removing and Cleaning Filter).
The unit is positioned too close to a wall or
other object restricting air flow and causing
• Reposition unit to maximize ventilation space
(Installation Instructions).
the machine to run at a higher temperature.
•
•
The filter is not properly installed.
• Properly install filter (Removing and cleaning fil-
ter).
• Reposition unit to maximize ventilation space.
The unit has been installed near a heat
source, such as a coffee machine, ice maker
or cold beverage machine which expels hot
air from its vents, causing the machine to run
at a high temperature (installation near a
heat source should be avoided).
“SYSTEM OVER TEMPERATURE” Alarm
A system over temperature alarm will activate as a safety precaution when the unit has overheated to
protect the compressor.
•
•
•
The system automatically goes to “OFF” status where the compressor’s operations is stopped, while
augers will keep working to avoid forming ice blocks.
When this occurs an “Err” message will appear on the touch pad LED readout accompanied by a
continuous buzzer sound to alert the operator of this condition.
When this alarm sounds, turn OFF all switches. Then determine the reason for the alarm. (See “Filter
Cleaning” Alarm Section for Conditions and Corrective Actions).
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
BOWL LOADING OPERATIONS
Ice Frost Generic (Pre-mix)
WARNING: If the unit runs out of product and is turned off and turned back on without a new
(full) product tank installed the sensor will look for product for 4 minutes. During this 4
minute period CO2 will be purged from the bowl.
•
•
Switch the machine’s main switch to the ON position (1).
Put the switch (A) into the ON position (1) see FIGURE 5,
switch A. Controls the flow of the product in the bowls.
•
•
The machine’s bowls will now fill up until the maximum level
is reached.
Continue with start up operations.
FIGURE 5
Ice Frost Generic (Post-mix)
•
Switch the machine’s main switch to the ON position (1).
•
Make sure the switch (L1) is in the OFF position (0) -
FIGURE 6 - (switch L1 controls the flow of the products in the
bowls).
•
•
•
Turn mixing motors OFF immediately. Do not run units with
bowls empty.
Using an 1/8 inch (8 mm) socket wrench (E1), loosen the nut
that holds the post-mix valve (D1).
Twist nozzle counter-clockwise (F1), lift the post-mix valve
(D1) up slightly and turn it towards the outside. leaving
nozzle and coupling attached to the bowl.
FIGURE 6
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
BRIX PROCEDURE
This will be a two step process. First to adjust the water flow
rate by adjusting the water flow control and second to obtain the
proper Brix by adjusting the syrup flow control.
1. Rotate the valve assembly 90 degrees and slide to the
outside of the machine. Tighten the 8mm nut using a
socket wrench (E1), see FIGURE 7.
2. Checking and adjusting the water flow is most easily done
by first disconnecting the syrup bib.
3. Hold the measuring cup below the valve & activate
dispense using the micro switch on the valve.
4. Adjust the water flow rate using a stop watch to 13 oz in 10
seconds. (1.3 oz per sec). Turn the water adjustment
screw on the flow control clockwise to increase water flow
FIGURE 7
or counter clockwise to decrease water flow.
5. Reconnect the syrup.
6. Dispense product into a cup by depressing the micro switch on the valve. Check brix using a
refractometer. The brix should be set to 13% 1%. To increase the brix adjust the syrup adjustment
screw on the valve clockwise to increase syrup flow or counter clockwise to decrease syrup flow.
CAUTION: Do not turn the syrup flow control counter clockwise too far.
7. When the Brix has been set to specification, reposition the
valve to its original setting and tighten retaining nuts.
8. Repeat the operation for the second bowl.
Once the adjustments have been completed for each bowl,
place the switch (L1) in the “ON” position, see FIGURE 8.
Both bowls will fill until the level sensor is activated.
Turn mixing motors “ON” (switch located on the control panel).
The dispenser has built in delays for compressor and bowl fill
switch.
NOTE: During initial filling it is normal for some foaming to
take place. The bowl level management will adjust as the
product freezes & the foam will dissipate.
FIGURE 8
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
PROGRAMMING ELECTRONIC TOUCH PAD
To lower the control cover, use a coin or other object to turn the keyless lock to the horizontal position, in
order to access the operating panel (controls are located on the right side of the unit).
Auger ON/OFF Button
Main Power Switch
• Turns unit ON.
• Selects 12/24 time clock or Fo/Co tempera-
ture display when turned ON while simulta-
neously depressing the auger button.
• Turns auger ON and OFF when main
power switch is ON.
• Must be ON to permit COLD time to be
reset.
• Sets current time when turned ON while
simultaneously depressing the “PRESS TO
SELECT FUNCTION” button.
• Must be ON to activate the “PRESS TO
SELECT FUNCTION” button to select manual
“OFF”, “FREEZE”, or “COLD” functions.
FIGURE 9
PRESS TO SELECT FUNCTION Button
“AUTO TIMER” Button
• Used to manually select “OFF”, FREEZE”,
or “COLD” functions when auger is turned
ON.
• Turns auto COLD mode ON or OFF (light
on switch indicates when auto COLD mode is
activated).
• Accesses COLD timer reset mode when
depressed for an extended period when
auger is turned ON.
• Used to adjust the hours and minutes set-
tings when readjusting current time or auto
COLD timer.
• Locks in hours, minutes and final time set-
tings after they are reset using the “AUTO
TIMER” button.
• Does not function when light on “AUTO
TIMER” button is illuminated.
To Enter Time Programming on Initial Installation or in the Event of Service
1. Turn the power switch OFF.
2. Press and hold the left “PRESS TO SELECT FUNCTION” button and turn ON the power switch.
Release the “PRESS TO SELECT FUNCTION” button when the hour digits start blinking.
3. Set the hour by pressing the “AUTO TIMER” clock button until the appropriate hour is shown.
NOTE: When using a 12 hour clock the time is P.M. when the dot at the bottom right corner of the
LED display is lit; A.M. when dot is not lit.
4. Press the left “PRESS TO SELECT FUNCTION” button to set the minutes, then press the “AUTO
TIMER” clock button until the appropriate minutes are set.
5. Press the “PRESS TO SELECT FUNCTION” button one more time to save your settings.
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
Setting COLD Timer (Night Setting)
1. Turn the power switch ON. Make sure the “AUTO TIMER” is OFF (light on button is not lit).
2. Press the left hand “Auger ON/OFF” button ON.
3. Press and hold the “PRESS TO SELECT FUNCTION” button until you hear a long beep and the
LED, “Cold” and the “AUTO TIMER” clock light begins to blink.
4. Press the “AUTO TIMER” clock button to set the unit to COLD mode and then press the “PRESS TO
SELECT FUNCTION” button to save the setting.
5. Press the “AUTO TIMER” clock button to set the minutes to complete time setting that you want it to
turn to COLD mode. Then press the “PRESS TO SELECT FUNCTION” button to save the minute
setting. The “COLD” light will turn off and the “FROZEN” light and “AUTO TIMER” light will begin
blinking.
6. Set the time you want the machine to return to FROZEN mode by following steps 1 - 5 above. Then
press the “PRESS TO SELECT FUNCTION” button to save the time settings. The FROZEN light
should be blinking.
7. Repeat steps 1 - 6 for the opposite bowl using the left buttons.
NOTE: Once the settings have been saved, the unit will keep the settings, even when the power
switch is turned OFF.
NOTE: When the light on the “AUTO TIMER” clock button is “ON”, the COLD timer is activated. To
turn OFF the COLD timer, press the “AUTO TIMER” clock button(s) until the light(s) on the clock
button(s) turns off.
Operate in Automatic Mode (with COLD Timer Activated)
1. Turn power switch ON and wait for LED display to light up.
2. Press the left hand “Auger ON/OFF” button ON.
3. To operate in COLD mode press the “AUTO TIMER” button until it is illuminated.
4. When setting automatic times, please keep in mind it will take time for the frozen product to become
liquid or vice versa.
Operate in Manual Mode (without COLD Timer Activated)
1. Turn the power switch ON and wait for LED display to light up.
2. Make sure the clock button is OFF (LED light on clock button should not be lit up).
3. First turn auger ON by pressing the “Auger ON/OFF” button until it beeps.
NOTE: The auger must be ON before the unit will allow the COLD or FROZEN mode to be
activated.
4. Then select COLD or FROZEN mode by pressing the “PRESS TO SELECT FUNCTION” button
until the light under the selection you desire is lit up.
NOTE: In the COLD mode, the LED will read the actual temperature of the product (the
temperature setting is preset to NSF standards and is not adjustable.) In the “FROZEN” or “OFF”
mode the LED will read the current time.
o
Setting the 12 or 24 Hour Display and F or oC Temperature Display
1. Turn the power switch OFF.
2. Press and hold the left “AUGER ON/OFF” button and turn ON the power switch. Release the
“AUGER ON/OFF” button when either “12” or “24” are shown (indicates the current hour view).
3. Press the “PRESS TO SELECT FUNCTION” button until either oF or oC is shown on the display.
4. Press the “AUTO TIMER” button until the desired temperature display type is shown (oF or oC).
5. Store the change by pressing the “PRESS TO SELECT FUNCTION” button until the current time is
displayed. The unit is now ready for use.
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
Viewing the Bowl Temperature
1. Turn ON the auger on the side that you want to display the bowl temperature (press the “AGER ON/
OFF” button).
2. Press the “PRESS TO SELECT FUNCTION” button until the “Cold” LED is lit. The display will now
show the current bowl temperature in either oF or oC as applicable.
CONSISTENCY ADJUSTMENT
1. To dispense the product, place the cup beneath the
dispensing valve (Q) and pull the lever (R) very gently
(FIGURE 10).
2. Adjusting the viscosity:
To vary the viscosity of the product, turn the knob (S) as
shown in FIGURE 11.
Turning the knob counter-clockwise will increase viscosity
(make the product denser).
Turning the knob clockwise will decrease viscosity (make the
product less dense).
FIGURE 10
ATTENTION: This control only changes the viscosity of the
product dispensed, it does not effect the COLD
temperature.
ATTENTION: When the level of the product inside the bowl
is below the minimum level, you must switch the COLD
system (OFF position), or refill the bowl, following the
instructions given in the previous paragraphs.
An indicator gauge for reference is located on the back of the
unit approximately 6 inches below the adjustment knob.
NOTE: This indicator can not be viewed on all models.
FIGURE 11
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
QUARTERLY CLEANING AND SANITATION
POST MIX SYSTEMS OPERATIONS
ATTENTION: The cleaning operations must be performed with the machine disconnected from the
power supply.
1. Empty the bowl of any remaining product and switch off the main switch “M”.
2. Remove the cover (B) - FIGURE 27.
3. Extract the quick couplings (C2) / (F2) - (FIGURE 12, FIGURE 13, and FIGURE 14).
Pre-mix version
Post-mix version
FIGURE 13
FIGURE 12
FIGURE 14
4. Disconnect the probe fastenings (D2) / (E2) - (FIGURE 12 and FIGURE 13).
5. Pull the lockpin/safety pin (Y) upwards - FIGURE 15.
CAUTION: There is a spring below the safety pin. Take
caution when removing the pin that the spring does not fall
into the unit or eject the pin.
FIGURE 15
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
6. Slide the locking bar (Z) - FIGURE 16 - outwards so that
the bowls are fully released.
Unlock relief valve on the bowl lid cap and remove
(FIGURE 17).
FIGURE 16
Bowl Lid Cap
7. Unscrew the knobs (A1) so the bowls can be lowered
slightly, open the tap to remove any remaining liquids and
then extract it from its seating, pulling it outwards (FIGURE
17).
FIGURE 17
8. Remove the tap from its seating, pressing the two
clamping wings at the same time (FIGURE 18) and
pushing upwards.
FIGURE 18
9. Remove the tap, holding the body (R) pressed downwards,
then slide the lever (L) out of its seating (FIGURE 19).
Wash all the parts thoroughly with hot water and mild
detergent, rinse them well, and replace them.
FIGURE 19
10. Separate the bowl from its cover, releasing the fastening
(D1) by pulling them upwards as shown in FIGURE 20.
FIGURE 20
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
11. Wash the bowl and cover carefully with water and mild
detergent, rinse them well, and replace them, making sure
the sealing strip (E1) is positioned correctly between the
cover and the bowl. To guarantee the seal, the rounded
part of the said sealing strip (as shown in FIGURE 21)
must be facing the cover.
FIGURE 21
12. Unscrew the fastening knob (F1) clockwise as the
direction indicated by the arrow (threading to the left) and
extract the spiral scraper (G1) and the seals (H1) and (I1).
Clean the individual parts thoroughly (FIGURE 22).
FIGURE 22
13. Clean the drip tray (J1) and the evaporator (K1) (FIGURE
23).
14. Replace the mixing unit as follows:
• Dampen the sealing strip (l1) and insert it into its
seating.
• Apply a generous amount of Vaseline (supplied with the
machine) to the suction cup seal (H1) (on the part that
comes into contact with the evaporator K1) and insert it
in its spiral seating.
• Replace the spiral scraper (G1).
FIGURE 23
• Fasten all the components in place by screwing the
knob F1 counter-clockwise.
15. Replace the bowl by pushing it into its seating.
16. Fasten the bowl in place by tightening the knobs (A1) -
FIGURE 24 and the locking bar (Z) - FIGURE 16.
FIGURE 24
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
17. Replace the tap, remembering to smear both is seating in
the bowl and the seals (J) with Food Grade Lubricant
(FIGURE 25).
FIGURE 25
18. Remove the drip tray (L1) by rotating it slightly and pulling
it outwards (FIGURE 26).
Wash all the parts carefully and reassemble it by following
the prior operations, remembering to re-insert the
condensation discharge pipe (M1) in its seating.
FIGURE 26
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
SPECIAL MAINTENANCE
ATTENTION: To guarantee peak cooling
system performance level, the routine cleaning
of the condenser filter is essential.
As explained earlier, an audible signal accompanied by
the word FILT appearing on the control panel display,
will warn the operator when the filter is clogged and so
must be cleaned before the machine comes to an
automatic stop.
FIGURE 27
•
•
•
•
•
•
•
Disconnect the machine from the power supply;
Unscrew the nut (C in FIGURE 27).
Remove the cover (B in FIGURE 27).
Disconnect the plug (D in FIGURE 28).
Loosen and rotate the bracket.
Lift and remove the back (E in FIGURE 28).
Clean the filter behind the net, then clean the
condenser with a brush, if necessary.
WARNING: You are reminded that all the opera-
tions described above must be carried out with
the machine switched off and the power cable dis-
connected.
FIGURE 28
FIGURE 29
FIGURE 30
RESTRICTED AIR FLOW ALARM
To protect the entire cooling system, the Ice Frost
drinks maker is fitted with an electronic system which
issues an acoustic warning signal in the event of
insufficient ventilation or if the condenser filter is
clogged. In addition to this, the words FILT and then
ERR will appear on the control panel display.
If the operator does not intervene when the signal is
issued, restoring normal working conditions (i.e.
ensuring better ventilation or cleaning the filter), this
electronic system will stop the machine automatically.
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
ELECTRONIC MONITORING
ELECTRONIC BOWL MONITORING AND SAFETY SYSTEM
The diagram shows the electronic pressures and levels
management system:
1. Safety valve.
2. Monitoring card for maximum limit exceeded probes.
6
1
3. Bowl 1 overpressure discharge relief valve solenoids.
4. Bowl 2 overpressure discharge relief valve solenoids.
2
5
5. CO2 inlet solenoid valve.
3
4
6. Pressure and levels monitoring card.
7
7. CO2 pressure switch.
FIGURE 31
In addition to the product level probes, each bowl is fitted with 2 further ‘overfull’ safety probes.
In fact, if the level probes should cease functioning and so the product begins to fill up the bowls, these
safety probes will transmit this information electronically to the monitoring card (2), which will then
disconnect the pressures and levels monitoring card (6).
The pressures and levels control cards have various functions, which are described below.
PRESSURE AND LEVEL CONTROL CARD GENERAL FEATURES
Via a micro-controller, the μZ4LP allows the operator to manage the levels and the relative safety devices
linked to the two cold drink bowls. An electronic pressure switch card (amplified, linearized, and
compensated) is provided for monitoring the pressure of the gas used in the post-mix phase of the said
drink.
The Electronic Pressure Switch Card will have the following features:
•
•
Independent level control for each bowl.
CO2 gas pressure reading.
•
•
Acoustic warning signal in the event of a lack of liquid/s.
Pressure maintained between two pre-set points by means of a relay.
The use of these mixed THT and SMD components makes it possible to maximize the services/
dimensions/quality relationship (better immunity to external troubles).
The ECU is composed of two main printed circuits:
•
•
Power’ section including transformer, relay, and power supply.
Logic’ section including (controller and level control circuiting).
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
OFF CONDITION
In this condition, the electronic control is not connected to the power supply. To connect the ECB to the
power supply, the main system switch must be put in the ON position.
1st Filling Condition
Supposing both the bowls are empty when the power is switched ON, the following situation will occur:
After a 3 second delay if the four probes, managed by the system, have detected no ‘presence’ of liquid,
the (μcontroller will energies the bowl fill solenoid 1 and 2 to allow the bowl to fill to begin.
Bowl Level Probe
Bowl Level Probe
Safety Probe Input
Safety Probe Input
Bowl Fill Solenoid
Bowl Fill Solenoid
Safety Probe Inputs and Bowl Level Probes Uncovered
FIGURE 32
Bowl Fill Solenoids = ON
Explanation of system flow controls, the first probes to be ‘covered’ are the two safety probe inputs.
However, this recognition of the passage of liquid does not actually stop the filling phase since the main
‘aim’ of the ECU is to fill the two bowls to the level required. Therefore only the recognition by bowl level
probes interrupts the inlet of liquid into the bowl/s.
Safety Probe Inputs Covered and Bowl Level Probes Uncovered
Bowl Fill Solenoids = ON
Bowl Level Probe
Safety Probe Input
Bowl Level Probe
Safety Probe Input
Bowl Fill Solenoid
Bowl Fill Solenoid
Safety Probe Inputs Covered and Bowl Level Probes Covered
FIGURE 33
Bowl Fill Solenoids = ON
Once the initial fill is complete, the (μcontroller will command ON the CO2 gas management solenoid
valve, which has been kept forcibly de-energized.
NOTE 1: The initial fill must take place within a maximum time lapse which is monitored by the μcontroller
(see Alarms section).
NOTE 2: The initial fill might only concern one of the two bowls, but it will maintain the same features.
NOTE 3: If all the probes are covered when the system is switched ON, the CO2 gas management
solenoid valve functioning is command ON.
Publication Number: M620919596OPR
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
Managing the Bowl Levels
When one of the two level probes fails to detect the presence of liquid in the bowl, the Fill solenoid valve
is activated to refill the correct level.
The probes relating to each bowl are completely independent, therefore the following situation will occur:
Bowl Level Probe
Bowl Level Probe
Safety Probe Input
Safety Probe Input
Bowl Fill Solenoid
Bowl Fill Solenoid
Bowl Level Probes Uncovered
Bowl Fill Solenoids = ON
FIGURE 34
Bowl Level Probe
Safety Probe Input
Bowl Level Probe
Safety Probe Input
Bowl Fill Solenoid
Bowl Fill Solenoid
Bowl Level Probes Covered
Bowl Fill Solenoids = ON
FIGURE 35
NOTE 1: The level/s refill phase must take place within a maximum time lapse which is controlled by the
(controller (see Alarms chapter).
NOTE 2: The level/s refill phase may only concern one of the two bowls, but it will maintain the same
features.
NOTE 3: It is essential that the safety probes are covered for the bowl/s filling phase to take place.
Safety Probes (only for ICE FROST GENERIC Pre-mix)
In addition to the two level probes relating to the two bowls (see FIGURE 32 through FIGURE 35), the
μZ4LP system also monitors the two ‘safety’ probes designed to monitor the presence of liquid in the
external tanks.
The monitoring of the probes (covered/uncovered) is only active during the bowl loading phase. It
follows, then, that a lack of liquid in the tanks during the non-loading phases will not be signalled.
If:
Safety probe inputs uncovered when bowl fill solenoids = OFF -
no signal
Example of how the safety system works:
Supposing the safety probe is uncovered and the solenoid valve is de-energized. In this case there will be
no signal.
Then the level probe located in the bowl is uncovered. The solenoid valve is enabled to allow the bowl to
fill correctly.
3 seconds after the activation of the solenoid valve, the safety signal is activated as the probe has been
identified as uncovered. The fill solenoid valve is deactivated and the buzzer emits an intermittent signal
lasting 6 seconds.
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
NOTE 1: the same intervention methods are applied when the safety probe
is uncovered after the solenoid valve has been activated.
NOTE 2: the 3-second software filter activated when it detects the safety probe is uncovered and the
relevant signal have been introduced to prevent the probe recognizing the “tank-bowl” conduit as “empty”
when there is residual gas in it.
Summing Up:
•
When one of the two safety probes fails to detect the passage (presence) of liquid during the fill, the
system will stop (3-second software filter) the fill cycle in progress, while the buzzer on the machine
emits an intermittent warning signal lasting 6 seconds.
•
If the safety probes is uncovered when there is no loading phase in progress (is de-energized), no
alarm signal is emitted.
This signal is activated as soon as the system starts to load the bowl.
If:
Bowl fill solenoid = ON and Safety probe input = Covered
bowl filled as usual
If:
Bowl fill solenoid = ON and Safety probe input = Uncovered
after 3 seconds - Bowl fill
solenoid = OFF and buzzer is activated
ATTENTION: After the no liquid alarm signal has been activated (safety probe inlet uncovered),
the actuators for the bowl whose safety probe is uncovered cannot be re-activated. Full
functioning conditions can only be restored by switching the machine OFF then ON again and re-
starting from the 1st filling phase. When the second safety probe is also identified as uncovered,
all the charges relating to the system are inhibited (with the exception of CO2 gas management
valve) and the buzzer emits an intermittent sound for approximately 20 seconds. Full functioning
conditions can only be restored by switching ON and OFF the machine starting from the 1st filling
phase.
The CO2 gas management valve solenoid valve is independent of the alarm signal and continues
its CO2 gas pressure reading function only (see relevant paragraph).
Publication Number: M620919596OPR
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
WIRING DIAGRAM
VFCB (PRE-MIX) 115V/60HZ
FIGURE 36
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
VFCB (POST-MIX) 115V/60HZ
FIGURE 37
Publication Number: M620919596OPR
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
VFCB (PRE-MIX) 230V/50HZ
FIGURE 38
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
VFCB (POST-MIX) 230V/50HZ
FIGURE 39
Publication Number: M620919596OPR
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
TROUBLESHOOTING
NOTE: The following procedures must be performed by a qualified service technician.
Problem
Possible Cause
Solution
“Filt” or “Err” message appears on
the touchpad LED readout
• The filter is dirty and needs to
be cleaned
• Clean and replace filter follow-
ing instructions (Removing and
Cleaning Filter)
• The unit is positioned too close
to a wall or other object restrict-
ing air flow and causing the
machine to run at a higher tem-
perature
• Reposition unit to maximize
ventilation space (see installa-
tion figures)
• The filter is not properly
installed
• Properly install filter see
“Removing and cleaning filter”
• The unit has been installed
near a heat source, such as a
coffee machine, ice maker or
cold beverage machine which
expels hot air from its vents,
causing the machine to run at a
high temperature. (Installation
near a heat source should be
avoid)
• Reposition unit to maximize
ventilation space (see installa-
tion figures)
The machine does not cool, or
cools only partially, but the com-
pressors are running
• The space around the machine
is inadequate for ventilation
• Allow at least 8” (20cm)
between the machine and any-
thing next to it; keep away from
heat sources
• Freezer is in COLD mode
• Return to FROZEN mode
• The condenser fins are clogged
with airborne particles
• Remove the side panels. Using
a brush or compressed air
clean the condenser
• Fan motor is not running
• Check the fan motor’s electrical
connections and, if discon-
nected, reconnect. If still not
operating, replace the motor
• Refrigerant is low
• Locate the leak, eliminate it and
recharge the system
The machine does not cool or
cools only partially, but one or
more of the compressors are not
running
• Defective Electrical components
• Loose wire connections
• Replace the malfunctioning compo-
nents
• Check the contacts and correct
those that are incomplete
• One or more of the compressors
are malfunctioning
• Replace the compressor(s)
• No current is coming to the
“compressor delay” PC board
• Check the electrical connections to
the PC board as well as the trans-
former feeding the PC board and
correct
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
Ice Frost Operator’s Manual
Problem
Possible Cause
Solution
The machine over-freezes making
the auger movement slow or
stopped
• The product Brix/ratio is too low
• Check the product Brix/ratio and
correct
• The screw setting for the product
consistency control system is set
too far toward the “+” position
• Reset the screw toward the “-”
position to produce a thinner con-
sistency product
• The limit switch arm is bent away
from the gearmotor and prevents
contact
• Using pliers, straighten the limit
switch arm
• The level of the product in the bowl
is too low, exposing the auger
• Add more product or turn the refrig-
eration “Off”
• The compressor PC board contacts
don’t open
• Replace the PC board
The machine is noisy
• The fan motor blades are hitting
internal components
• Check and correct
The main power switch is “On”.
The unit is not running.
• The fuse(s) are blown
• Replace the fuse(s)
• The pressure cutout switch has
activated
• Clean the condenser or add venti-
lation space around the machine
(the cutout switch reset is auto-
matic when the conditions are cor-
rected)
• Some electrical connections are
not complete
• Check the contacts and correct
those that are incomplete
• The main power is not functioning
• Replace the switch
Product is leaking out of the bowl
• One of the bowl seals is not in
place
• Replace or reposition the seals
Product is leaking from the dis-
pensing valve
• The dispensing valve has been
incompletely or incorrectly replaced
in its position
• Reassemble and replace
• The free movement of the dispens-
ing valve is impeded
• Clean and lubricate the valve and
valve cylinder with the lubricant
provided with the machine
• Dispensing valve o-rings are dam-
aged
• Replace the o-rings
Product is flowing into drain tray
through drainage tube
• The bell shaped “shaft” seal
between the front of the cylinder
and the auger hub has not been
reinstalled properly
• Find the seal and put it back in
place
• The bell shaped “shaft” seal or the
spindle bushing seal is damaged or
worn
• Replace the damaged/worn seal
and check the condition of the
driveshaft.
The auger is not turning
• Auger not turned on
• Turn auger on
• Some electrical connections are
not complete
• Check the contacts and correct the
ones that are incomplete
• The gear motor(s) are malfunction-
ing
• Replace the gear motor(s)
The auger is creating noises as it
rotates
• The large red bowl seal is not in
position, causing the gear teeth not
to mesh
• Check and correct
• The product brix is incorrect
• Check the product brix and correct
• The bell shaped “shaft” seal has
been replaced without lubrication
or is damaged
• Replace or Clean and lubricate
with the lubricant provided with the
machine
• The auger has been incompletely
or incorrectly reassembled (ie the
auger’s gear pins are not properly
seated)
• Check and correct
Publication Number: M620919596OPR
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© 2004-2006, IMI Cornelius Inc.
Ice Frost Operator’s Manual
Problem
Cap is leaking
Possible Cause
• The nut is loose
Solution
• Tighten the nut
Bowl not refilling
• Out of syrup
• Out of CO2
• Replace
• Replace
• Open
• Valves are shut off or blocked
• Foam covering probes
• Wait
• Turn on
• Replace
• Replace
• Fill Switch in off position
• Defective syrup pressure switch
• Defective CO2 shut off
Bowl is overfilling
• Bad Pressure and Levels Card
• Replace the card
CO2 leaking from back of unit
• Proper function of bowl over
pressure discharge solenoids
• If not continuous leak it is nor-
mal operation
• Poor connection
• Repair leak
WARNING: Relief valve venting is normal, a continuous leak is not and must be corrected immedi-
ately. Repair the solenoid valve.
© 2004-2006, IMI Cornelius Inc.
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Publication Number: M620919596OPR
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