metos C70 Spray Ice Makers for Commercial Use User Manual

metos C70 Spray Ice Makers for Commercial Use

QUICK INSTRUCTIONS

THE OPERATIONS HIGHLIGHTED WITH THIS SYMBOL ARE STRICTLY RESERVED TO THE AUTHOR-ISED TECHNICAL DEPARTMENT.

In particular, they are:
Electrical connections, Water connections, Installation of the machine, Testing of the machine, Repairs on all com-ponents and parts of the machine, Disassembly of the machine and/or its components, Adjustment and calibration, Maintenance and cleaning of the machine related to parts and components (electrical, electronic, mechanical, refrigerators)
This user manual is part of the ice maker and provides all the necessary information for proper installation, proper machine operation and maintenance.
The user must carefully read the manual and always refer to it when using the machine. Moreover, it must be stored in a place known and accessible to all authorized operators (installer, user, maintenance technician).
Any contractual and non-contractual liability of the manufacturer for damage caused by installation and operating errors and, in any case, by non- compliance with current National and Local regulations and with the instructions provided by the manufacturer, is excluded.

The text marked with this symbol is of particular importance or it signals a potential hazard
NOTE: clarifies the pending operations
The Manufacturer reserves the right to make changes at any time, without prior notice and without any obligation on his/her part. Partial or full reproduction of this manual without prior written approval from the manufacturer is prohibited.
The following information refers to the EU member States.
The barred bin symbol means you cannot dispose this product as a household waste.
The assessment that this product is disposed of properly will help prevent the potential negative consequences for the environment and human health that could be caused by the incorrect disposal of the product.

WARNINGS

• The machine is designed for professional use and therefore only qualified persons may use it.
• The user must carefully read the manual and always refer to it when using the machine. Moreover, it must be stored in a place known and accessible to all authorized operators (installer, user, maintenance technician). Be sure to use only the supplied or specified installation components.
• In the event of sale or transfer of the appliance, this manual must be handed over to the new user.
• Any contractual and non-contractual liability of the manufacturer for damage caused by installation and operating errors and, in any case, by non-compliance with current National and Local regulations and with the instructions provided by the manufacturer, is excluded.
• Do not operate the device before the intervention of the technician
• The machine is only intended for the use for which it has been designed, i.e. to make ice.
• The equivalent CO2 value is shown on the registration plate
• In high concentrations it can be asphyxiating. Contact with liquid can cause burns and frostbite.
• The gas in the system is pressurized; it may explode if heated.
• Do not store explosive substances in this unit such as aerosol cans with a flammable propellant.
• ATTENTION: Do not use electrical appliances inside the compartments of the ice storage machine if these are not of the type recommended by the manufacturer.
• ATTENTION: Keep the ventilation openings in the casing of the equipment or in the recessed structure free from obstructions.
• ATTENTION: Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the producer.
• ATTENTION: do not damage the refrigerant circuit.
• ATTENTION: when positioning the appliance make sure that the power cord is not trapped and damaged.
• ATTENTION: Do not place multiple portable sockets or portable power supplies on the back of the appliance.
• This appliance was designed to be used for household and similar applications, such as:
  • the kitchen area intended for commercial personnel, offices and other working environments;
  • factories and by customers in hotels, motels and in other residential environments;
  • bed and breakfast establishments;
  • non-retail catering services and similar applications.
• Check that the identification plate data and the electrical line characteristics match (V, KW, Hz, phase number and available power)
• Do not pull the power cord to disconnect the machine from the power supply.
• If the power cord is damaged, it must be replaced by the manufacturer or by its technical assistance service or in any case by a person with similar qualification, such as to prevent any risk.
• The appliance can be used by children of at least 8 years of age and by people with reduced physical, sensory or men-tal capabilities, or who do not have prop-er experience and knowledge, provided they are supervised or instructed on the use of the appliance and they understand the hazards involved. The cleaning and maintenance intended to be performed by the user must not be performed by unsupervised children. Children must not play with the appliance.
• The appliance can be loaded and un-loaded from the means of transport using a forklift truck or a pallet truck with forks longer than half of the unit. The lifting vehicle must be selected based on the dimensions of the packed machine/components and with proper capacity.
• When handling the appliance, all necessary precautions must be taken to avoid damaging it.
• After removing the packaging, make sure that the machine/sub-assemblies are intact. If in doubt, do not use it and con-tact the reseller.
• All the components of the packaging must be disposed of according to the regulations in force in the country where the appliance is being used. In any case, nothing must be disposed of in the environment.

The appliance:

• must be installed in places where it can be checked by qualified personnel.
• it must not be installed outdoors or in dusty environments (Fig. 8).
• must not be placed in areas where there are jets of water, and it must not be washed with jets of water.
• must be installed and tested in full compliance with accident prevention regulations, traditional regulations and current regulations.
• it must be positioned at a minimum distance of 150 mm from the rear wall (Fig. 3).
• Avoid places exposed to direct sun rays, closed spaces with high temperatures and poor ventilation and avoid in-stalling the machine close to any source of heat (Fig. 6)
• The installer should check any fire prevention requirements (contact the local fire brigades for proper indications).
• Position the ice maker in the final lo-cation making sure that it is perfectly flat (Fig. 3)
• Connect only to drinking water network
• the water supply pressure should not be less than 0.1 MPa (1 bar) and it should not exceed 0.5 MPa (5 bar). If the pressure exceeds 0.5 MPa, apply a pressure reducer to the water feeding of the machine.
• Before carrying out any cleaning or maintenance operations, disconnect the machine from the power supply by operating the main switch and unplugging it. If the socket is at a distance or in a position that cannot be controlled by the operator or the appliance is not equipped with a plug, a device for electrical padlocking must be installed to avoid accidental connection of the appliance.
• ordinary and extraordinary maintenance operations must only be performed by qualified installers.
• We decline any liability for damages to persons, animals or things resulting from failure to ground the equipment and the performance of an electrical system which is not compliant with applicable regulations.
• Use the new set of fittings (water pipe) provided together with the device. The old set of fittings should not be reused.
• In case of maintenance requiring the replacement of parts of the machine, the use of original spare parts is mandatory. For information contact the seller or the technical assistance of the manufacturer.
• In the event of abnormal operation of the appliance or the appearance of alarms, disconnect the machine from the electricity and water supply and refer to Chap. 6 for explanation and troubleshooting.
• The Sound Pressure level is less than 70 dB(A).
• For water-condensed equipment, the maximum inlet water temperature must not exceed 30°C (86°F)
• Check the tightness of the straps, nuts and bolts, screws and clamps that may have come loose during transportation to avoid water leaks or other problems during machine operation.
• Every 3 – 4 years of operation of the machine, check the tightness and efficiency of the electrical contacts especially in the coils of the remote switches and inside the relays. Replace the component immediately with an original spare part if it appears worn or oxidized. Increase the frequency of this intervention if the machine is subjected to particularly intensive or continuous use.

Attention: Fire hazard / flammable material

• The device contains propane (R-290), in the quantities indicated on the serial number plate (fig.10).
• The GWP (Global Warming Potential) of the R-290 gas is 3.
• According to the standard ISO 817, R-290 is a flammable gas.
• As in the event of leakage, propane moves downwards, avoid placing the machine in low-lying areas (fig.15)
• To avoid the ignition of propane in the event of leakage and the spread of fire, avoid placing sources of flame, combustive or explosive materials within a radius of 3 m, and ensure sufficient air circulation (fig.19)

VERSIONS IN R134A

• The appliance contains fluorinated greenhouse gas regulated by the Kyoto Protocol, in the quantities indicated in the serial number plate. The type of refrigerant gas present in the refrigerating circuit of the appliance is shown on the identification plate (fig. 10). The GWP (Global Warming Potential) of the R134a HFC gas is 1430.
  The CO2 equivalent data is present on the serial number plate (fig. 10).

• According to Regulation (EC) 1272/2008, R134a gas is a non-flammable and non-toxic gas.

PREFACE

This device (machine) was designed by our technicians and manufactured in our establishments having an experience of decades and taking care to meet the highest quality standards. Our ISO 9001 certified quality system allows you to control all business processes for continuous improvement of the quality and safety of our products.
Immediately read this brochure which will help you familiarizing with the machine which, if installed and used correctly according to the instructions, shall not present risk situations or danger for the user.
It is important to always observe the contained instructions and that in no way the user accesses inside the compressor – condenser compartment and to tamper with the control and safety devices.
We recommend carefully reading our warnings for a correct and better use of your ice maker so that it operates for a long period of time without causing problems. If you need to contact the manufacturer or a designated representative, always quote the model and serial number of our device (fig.10).

Machine operation

Ice cube makers can be easily adapted to the furnishings of each room.

• They mainly consist of:
  • a) A refrigerating circuit that provides the cooling capacity to obtain the ice and the hot gas to detach the ice at the end of the cycle.
  • b) An area called evaporator, consisting of cooled metal cups, in which the ice if formed
  • c) a pump and a sprayer to recirculate the water, which is then turned into ice, by collecting it from a bowl and spraying it evenly on the cooled cups of the evaporator, thus ensuring the formation of ice.
  • d) finally a bin that contains the ice produced
• the production cycle stops either because the probe in the bin detects that the bin is full or because the user switches off the machine.
• The formation of ice cubes takes place inside cooled metal cups located in the top part of the machine called evaporator; during the ice formation phase, these cups are always sprayed with water by a sprayer placed below them; the sprayer is fed by a pump that collects a certain amount of water from the underlying bowl, and recirculates it, so it can gradually turn into ice.
• When the ice cubes have reached the expected size, the evaporator probe detects the right conditions and, by means of the electronic board, it activates the opening of the hot gas valve which heats the evaporator, and simultaneously opens the water inlet valve, filling the bowl and also helping the ice cubes detach from the evaporator. During this phase, the pump remains still in order not to ruin the ice being detached.
• Once detached, the cubes slide on an inclined grid located inside the tray and are conveyed to the underlying bin.
• after a certain time defined by the board, the hot gas valve closes again and the ice formation phase restarts; the time for a complete cycle may vary from about 15’ to about 35’ depending on the water and ambient temperatures.
• The amount of ice in the bin is controlled by the electronic probe fixed on a wall of the bin; when the cubes reach the level of the bulb the machine stops completely. After removal of the ice, allowing the bulb to be released from contact with the cubes, the ice maker will resume its normal production.

Note: After collecting the ice, remove any residues from the control bulb so that production can resume faster.

Warranty

For the general conditions of the warranty, please con-tact your local official distributor. In case of replacement of components, always ask for original spare parts.

INSTALLATION

Transportation

The net weight and the gross weight of this equipment are shown in the external packaging.
The appliance can be loaded and unloaded from the means of transport using a forklift truck or a pallet truck with forks longer than half of the unit. The lifting vehicle must be selected based on the dimensions of the packed machine/components and with proper capacity.
When handling the appliance, all necessary precautions must be taken to avoid damaging it.

Unpacking and disposal

Remove the cardboard packaging from the base on which it rests. Then lift the machine with suitable means (forklift truck or similar), remove the wooden base and position the machine in the intended place. After removing the packaging, make sure that the ma-chine/sub-assemblies are intact. If in doubt, do not use it and contact the reseller.
NOTE: all the components of the packaging must be disposed of according to the regulations in force in the country in which the device is used. In any case, nothing must be dispersed in the environment.

Positioning

The appliance:

• must be installed in places where it can be checked by qualified personnel.
• must not be installed outdoors.
• must not be installed in dusty environments (Fig. 8).
• must not be put in places with the presence of water jets.
• must not be washed with water jets.
• must be installed and tested in full compliance with accident prevention regulations, traditional regulations and current regulations.
• must be positioned at a minimum distance of 150 mm from the rear wall(fig. 3)
• Avoid places exposed to direct sun rays, closed spaces with high temperatures and poor ventilation and avoid installing the machine close to any source of heat (Fig. 6)

The installer should check any fire prevention requirements (contact the local fire brigades for proper indications).

Level the equipment by means of the adjustment feet (Fig. 3).
If the devices are not levelled, their operation and condensation discharge might be compromised.

Before commissioning the ice maker, perform the following operations:

1. Check that the device has not suffered any damage due to transportation (fig.2)

2. Extract from the bin, all supplied materials: feeding tube, exhaust pipe, documentation and any accessories.

3. Clean the inside of the bin with a sponge soaked in warm water mixed with a little bicarbonate of soda; rinse with clean water and properly dry.

4. Place the ice maker in a definitive place making sure that it is perfectly flat (fig.3)
   Note: when choosing the environment where to install the machine, make sure that:

   • the ambient temperature does not drop under 10°C (50°F) and does not exceed 43°C (110° F).
   • the water temperature should not be under 10°C (50°F) and should not exceed 32°C (90°F) (fig.4).
   • the feed water pressure should not be under 0.1 MPa (1 bar) and it should not exceed 0.5 MPa (5 bar). If the pressure exceeds 0.5 MPa, apply a pressure reducer to the water feeding of the machine (fig.5).
   • the water conductivity must not be less than 10 μs /cm at 25° C ambient temperature.
   • the machine should be kept away from sources of heat and in a well-ventilated place (fig.6).
     Connect only to the drinking water network (Fig. 5)

5. Before performing the electrical connections, perform the hydraulic al ones.

6. Connect the provided 3/4″ feeding pipe to the ma-chine and to the feeding pipe with cold drinking water.
   For practicality and safety reasons, it is recommended applying a shut-off valve, not supplied by us (fig. 7).

   • main switch;
   • socket;
   • plug;
   • hydraulic feeding;
   • valve;
   • water drainage from the condenser: water refrigerating version; 7 water drainage from the bin; 8 water drainage with open drain pipe).

7. Apply on the machine drainage fitting the supplied flexible tube with an inside diameter of 20 mm and of a suitable length (not exceeding one meter from the machine) to reach the drain trap.

   • If the supply water contains a lot of impurities, you should install a filter on the water supply network up-stream of the device. (Fig.7 – Ref.11)
   • If the water is very hard, i.e. full of minerals and their derivatives, you should install a suitable water softener on the water supply to prevent limescale from forming in the water circuit.
   • In order to avoid that the ice absorbs unpleasant odors and flavors, never keep in the bin food, bottles and other similar things.
   • During the normal operation, do not leave open the door of the ice bin.

Connection to the electrical power supply

We decline any liability for damages to persons, animals or things resulting from failure to ground the equipment and the performance of an electrical system which is not compliant with applicable regulations.

Install an omnipolar mains disconnection device in the power supply system which provides full disconnection under category III overvoltage conditions in accordance with current regulations.
The connection to the power network must be carried out in accordance with applicable national regulations and by qualified and authorized personnel.
Before connecting the equipment to the power network, make sure that the network voltage corresponds to the one indicated on the identification plate (Fig. 10).
Check that the electrical system is adequate to the maximum absorbed power of the equipment indicated on the identification plate.
If the power cord of the equipment appears to be damaged, it should be replaced with another one having the specifications compliant with the regulations in force in the country of installation and the replacement should be made by qualified personnel so as to prevent any risk to the persons.
The earth conductor must be correctly connected to an efficient earthing system.
The manufacturing company declines any liability and any responsibility in terms of warranty if dam-age to the equipment, persons and things are found, caused by incorrect installation and/or by installation which is not compliant with the laws in force.

COMMISSIONING

See the illustrative figures:
Note: For a perfect water outflow from the de-
vice, provide a minimum 3% slope of the pipe check-ing that it is not subject to bottlenecks or siphoning. It is recommended that the pipe discharges into an open siphon (fig.7).
Before electrically connecting the machine, make sure that the network voltage corresponds to the one indicated on the identification plate placed on the back of the appliance (fig. 10).

The maximum permitted tolerance on the volt-age variation is of ± 10% of the rated value.
Provide an electrical supply circuit to the machine with its own main omni polar switch in order to guarantee an opening distance of the contacts which al-lows the full disconnection under the conditions of the overvoltage category III.

Dimension the circuit according to the amperage indicated on the identification plate (fig.10). The electrical socket must be easily accessible
Once the correct connection to the hydraulic network and to the electrical one is checked, open the water feeding valve and insert the plug into the socket.

If the machine is in standby, the illuminated button will flash every 30″. To exit standby and to finally start the machine, press the luminous switch for at least 3 seconds, until the start of the machine is signaled with a long beep (fig.9).
It is recommended not to use the first 5 cycles of ice.
The ice maker is equipped with a temperature probe present in the ice bin (fig.14), which allows the ma-chine and ice production to stop when the bulb comes into contact with the ice accumulated in the bin.
Never stop the water with the machine into operation, do not obstruct the air suction inlets.
Note: After the collection, release the control bulb from any ice remainders for a faster resuming of the production (fig.14).
Before electrically connecting the machine, make sure that the network voltage corresponds to the one indicated on the identification plate placed on the back of the appliance (fig. 10).

• Check that there are no abnormal vibrations due to loosened screws.
• In case of intervention due to water leaks, tightening of screws or other, always stop the machine first.
• Check an ice cycle by checking that the cubes are discharged into the bin.
• Check the operation of the bin probe (fig. 14):
  lay an ice cube on the bulb inside the bin, the ice maker should stop within 1 minute and restart automatically after its removal, in a short time.

Ice cubes adjustment

As the room temperature changes, the size and weight of the ice cubes may in turn change.
To adjust this size and weight, follow the procedure below:

1. Press, with the machine running, the button (Fig.9) 3 times within 2 seconds; the button will take on a color between white and red.
2. To decrease the weight of the cube, touch and increase the color towards red; to increase the weight, press it until the color approaches white. After 5 seconds of no pressing, it saves and exits the modification phase. (fig.9)

Bin Probe Adjustment

Over time, due to the variation in the ambient temperature, the set of the bin probe, which stops pro-duction, may not be sufficient. To adjust this value follow the procedure below:

1. Press, in standby, the button (Fig.9) 3 times within 2 seconds; the button will take on a color between white and red.
2. To increase the set T°, press the button (Fig.9), making the color increase towards red; to decrease it, press it until the color approaches white. After 5 seconds of no pressing, it saves and exits the modification phase.

CLEANING AND MAINTENANCE

Before carrying out any cleaning or maintenance operations, disconnect the machine from the power supply by operating the main switch and unplugging it.
If the socket is at a distance or in a position that cannot be controlled by the operator or the appliance is not equipped with a plug, a device for electrical padlocking must be installed to avoid accidental connection of the appliance.

Operations to be performed by the user

External body cleaning
In order to clean the body, it is enough to use a cloth soaked into a specific chlorine-free product, for stainless steel.

Cleaning the ice container

• Remove the ice from the bin. Clean the inside with a sponge moistened in warm water combined with a little baking soda;
• Rinse with clean water and properly dry it.

Operations to be performed by the enabled installer

Hereinafter we present a list of routine maintenance operations which must be performed only by authorized installers. The manufacturing company declines all responsibility for incidents caused by the failure to comply with the above-mentioned obligation.

Cleaning the Air Condenser (if present)

• In order to make the most of your ice maker in terms of performance and durability, it is necessary to periodically clean the air condenser placed at the front of the ice maker (see fig.16).
• Do not use brushes or blunt object to clean the condenser.

Cleaning the water inlet filter

• Close the water shut-off valve to the device, remove the water inlet pipe and extract using pincers the filtering trap placed on the water inlet solenoid valve.
• Clean the trap with water jet and mount it back in its seat.

Ozone activation (optional)

If the ozone generator is installed, it shall be activated periodically in the following sequence: 5 hours inactive, 1 hour active.
The sequence is synchronized with the first power supply of the machine (power-ON).

Cleaning and sanitizing cycle

To remedy the problems caused by the hardness of the feed water and therefore the formation of impurities on the parts and components in contact with the water, the machine has been equipped with a “self cleaning” function. This function, thanks to the cleaning action of a specific product, a sachet of powder product and the dosing bottle, allows the machine to be kept clean and sanitized from limescale and scale.
To guarantee good cleaning of the ice maker, it is recommended performing a cleaning cycle at least 3-4 times a year depending on the hardness of the feed water.

Cleaning kit (optional)
The kit consists of a plastic bottle with a rubber tube, a 1 kg box of citric acid and the instructions for the cleaning cycle.

The quantities of citric acid to be mixed with water in the bottle in order to obtain the mixture

MODEL| Quantity of citric acid
20 – 25 Kg| 200 g
30 – 40 Kg| 250 g
50 Kg| 350 g
70 – 90 Kg| 500 g

Take the necessary precautions when handling the citric acid when preparing the solution (water + citric acid, please see the table) wearing safety gloves and glasses.
In the event that a cleaning cycle is start-ed accidentally (by pressing the button for >9″), there are two ways to exit the procedure:

1. After about 1h40′ by pressing the button for 3″ the machine will go back to standby, and by pressing it for 3″ again, the pro-duction cycle will start

2. After 2h 30′ the machine goes into stand-by automatically, and from this condition it is possible to start the production cycle by pressing the button for 3″

3. Turn off the machine.

4. Remove the ice from the bin.

5. Using the specific product and the plastic bottle, prepare the solution dissolving the powder in warm water (max. 40°C) according to the quantities men-tioned in the enclosed table. Mix the whole thing pay-ing attention that no clumps are formed.

6. Pour the cleaning agent in the evaporator tray (fig.12).

7. Turn the machine back on, and if it is not already, put it in standby (fig.9).

8. Press the standby button for at least 9” to start the cleaning cycle

9. During the cleaning cycle, the button will flash as follows: off for 1 second and on (white) for 3 seconds. Once the cleaning cycle is finished, it will go into stand-by.

10. Empty the evaporator bowl by removing the cap (Fig. 18), then replace the cap and pour clean water into the tray in an amount equal to the capacity of the tray.

11. Repeat the cleaning operation without adding citric acid to eliminate the presence of the descaling and sanitizing agent.

12. After this period turn off the machine and remove the cap (Fig. 18) to drain the water from the evaporator bowl again. Finally replace the cap.

13. After the cleaning operation, rinse the bin thoroughly.

If the appliance is left unused for long periods of time:

• Turn off the machine;
• Remove the ice from the bin;
• Drain the water;
• Clean thoroughly;
• Leave the door of the bin slightly open

MALFUNCTION

THE FOLLOWING OPERATIONS SHOULD BE PERFORMED EXCLUSIVELY BY QUALIFIED AND AUTHORISED PERSONNEL.
IN CASE OF INCORRECT OPERATION, IT IS RECOMMENDED TO DISCONNECT THE MACHINE FROM THE ELECTRICAL AND HYDRAULIC SUP-PLY NETWORK.

1. Check that the valve of the supply hydraulic network is open.
2. Check that there is electrical supply, that the plug is inserted correctly and that the switch is on.
3. Check that there are no abnormal vibrations due to loosened screws.
4. If it is necessary to intervene due to water losses, screw tightening or other things, first, always stop the ice maker, then check that the loss is not caused by obstructions of the drain ways.
5. In case of insufficient production, check that the condenser is clean or if there are limescale deposits on the sprayer nozzles.
6. Check the operation of the bin probe: lay an ice cube on the bulb inside the bin, the ice maker should stop within 1 minute and restart automatically after its removal, in a short time.
7. Between summer and winter, the bin probe can vary the maximum amount of ice in the bin. For any adjustments see paragraph 4.2.

LIST OF ALARMS

THE FOLLOWING OPERATIONS SHOULD BE PERFORMED EXCLUSIVELY BY QUALIFIED AND AUTHORISED PERSONNEL.
IN CASE OF INCORRECT OPERATION, IT IS RECOMMENDED TO DISCONNECT THE MACHINE FROM THE ELECTRICAL AND HYDRAULIC SUPPLY NETWORK.
The illuminated button has a combination of white and red colors, which indicate the operating or alarm status, which are summarized below:

OFF : LED / color always OFF
ON : LED / color always ON
Flashing : LED / color ON for 0.5s, OFF for 0.5s

Troubleshooting

THE FOLLOWING OPERATIONS SHOULD BE PERFORMED EXCLUSIVELY BY QUALIFIED AND AUTHORIZED PERSONNEL.
IN CASE OF INCORRECT OPERATION, IT IS RECOMMENDED TO DISCONNECT THE MACHINE FROM THE ELECTRICAL AND HYDRAULIC SUPPLY NETWORK.

ventilation of condenser, check for gas leaks, check position of evaporator probe.
(AL02) Alarm: cold cycles duration difference| Machine continues to work; reset alarm by pressing button| If the machine started hot, or the size of the cubes was changed, check for alarms after 3 continuous cycles, check cleanliness and ventilation of condenser, check water temperature if stable, check for gas leaks, check position and insulation of evaporator probe if present.
(AL03) Alarm: no water (if sensor present)| Machine stopped or waiting for an automatic start-up attempt| Check water supply, check for water leaks in the circuit, check operation of water inlet valve and clean water filter.
(AL04) Alarm: ice bin probe faulty| Machine stopped| Check probe-board connection, check probe integrity, check that the ohm value read is correct, replace probe – By checking beforehand that there is space in the bin, two ice production cycles can be started by pressing the button
(AL05) Routine maintenance request| Machine continues to work| Call technical assistance for periodic maintenance (reset the message by pressing the button for 10 seconds)
(AL06) High temperature at condenser outlet| Machine stops, condenser fan remains on to lower the condenser temperature, or water valve remains open in case of water condensation. (once it has cooled down, the machine restarts making a few attempts to see if the alarm is no longer present, then it stops permanently)| Check cleanliness and ventilation of condenser, check that the condenser fan is turning, check position of condenser probe; in water-cooled versions, check the water supply and operation of the water inlet valve.
(AL07) Condenser probe alarm| Condenser probe faulty or outside allowed value range, the machine works with continuous ventilation or water inlet always activated.| Check condenser probe-board connection, check that the ohm value read is correct, replace probe.
(AL08) Evaporator probe (if present)| Evaporator probe faulty or outside allowed value range, the machine works with historical data if necessary| Check evaporator probe-board connection, check for ice cube accumulation in the evaporator area, check that the ohm value read is correct, replace probe.
(AL09) Blackout – No power supply| The machine will resume operation in the state before the power failure.| Check the electrical connections and power source. (To remove the alarm message, press once to silence the buzzer, press again to remove the message if within the first minute, second press only if the minute has already passed).
(AL10) High pressure alarm| The machine stops, the condenser fan remains on to lower the condenser temperature, or the water valve remains open in case of water condensation. (once it has cooled down, the machine restarts making a few attempts to see if the alarm is no longer present, then it stops permanently)| Check cleanliness and ventilation of condenser, check that the condenser fan is turning, check position of condenser probe; in water-cooled versions, check the water supply and operation of the water inlet valve, replace maximum pressure switch.
(AL11) Discharge pump alarm| Machine stops and periodically attempts to drain water, for a limited number of times| Check that the water drainage line is not clogged, check operation of drainage pump, check cleanliness of level sensor, check discharge tray outlets.
(AL14) Condenser cleaning| Machine continues to work| It is advisable to clean the condenser or air filter, or in water-cooled versions, check whether the water supply is sufficient or too hot
(AL15) Probe reversal| Machine stops| Check probe wiring on board, exchange or replace if necessary

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References

• metos.com

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