Maxima Dishwasher User Manual

Chapter 1: Risks and Important Warnings

This appliance is designed solely for professional heavy-duty dishwashing. Any other use is improper and hazardous.

Only qualified technicians authorized by the manufacturer should install, operate, service, or repair the machine. Always disconnect the machine from power and water supplies before any maintenance.

The machine is not intended for use by untrained persons. Children aged 8 and above, or persons with reduced physical, sensory, or mental capacities, may use the appliance if supervised or trained. Children must not play with the appliance. Cleaning and maintenance should not be performed by unsupervised children.

The machine must not be kept powered up when not in use. Ensure proper electrical connection with a grounding system conforming to safety legislation. If the power cable is damaged, it must be replaced by the manufacturer or an authorized service center.

Safety Precautions:

• NEVER open the machine quickly if it has not completed its cycle.
• NEVER use the machine with manufacturer-installed guards removed.
• NEVER wash objects not guaranteed to be machine-washable or not in good condition.
• NEVER use the machine as a step or support.
• NEVER overload the door of front-loading machines.
• NEVER place bare hands in the wash solution.
• NEVER overturn the machine after installation.
• If a malfunction or leak occurs, immediately disconnect power and shut off water supply.
• Do not install near heat sources over 50°C or expose to weather.
• Never start a wash program without the overflow in the tub.
• Do not place magnetic objects near the machine.
• Do not use the top of the machine as a table or support.
• The installer must ensure the grounding system is operational and provide a written declaration.
• DO NOT change the position or tamper with machine elements.

Noise Pressure Level (according to EN ISO 4871):

• Undercounter versions: LpA Max = 55db
• Hood versions: LpA Max = 65db
• Utensil washer versions: LpA Max = 76db

Operating Conditions:

• Max inlet water temperature: 50°C
• Max inlet water pressure: 4bar (400kPa)
• Ambient temperature: 4°C to 40°C (average 30°C)
• Altitude: up to 2000 meters
• Relative humidity: Max 30% at 40°C / Max 90% at 20°C

Chapter 2: Preface

Keep all documentation with the appliance for reference. The operator must read and understand this manual before operating or working on the appliance.

Warranty: The manufacturer is not liable for damage or injury from failure to observe instructions or improper use. Failure to observe documentation may compromise safety and void the warranty. Unauthorized repairs and non-original spare parts also void the warranty.

Storage: Transport and storage temperature: -10°C to 55°C (peaks up to 70°C for max 24 hours).

Chapter 3: Installation

Proper installation is crucial for good operation. Refer to the machine's nameplate for installation data.

Installation must be performed by qualified persons. For Australia and New Zealand, installation must comply with AS/NZS3500.1 and PCA.

3.1 Unpacking

Check packaging for damage and report any damage to the reseller and shipping agent. If damage compromises safety, do not operate until inspected by a qualified technician. Keep packaging materials away from children and pets.

3.2 Positioning

Ensure the installation area is protected from steam. Set up electrical, water, and drain connections before positioning. Allow at least 10 mm space for flush-mounting single panel machines. The floor must support the appliance's weight. Level the appliance with its four feet. The appliance is intended for fixed installation only. Remove protective film before operation.

3.3 Electrical Connection

The power supply must have a master power switch with a contact gap of at least 3 mm and thermal cutout or fuses, rated to the machine's nameplate power. The switch must be near the installation point. Ensure mains voltage and frequency match nameplate ratings. A grounding system conforming to electrical safety legislation is mandatory.

This appliance conforms to EN/IEC 61000-3-11 certification if system impedance (Zsys) is less than or equal to Zmax at the interface point. The installer is responsible for checking this.

The power cable must be H07RN-F type with appropriate current capacity.

• Three-phase machine cables: -5x2.5 mm² up to 20 A, -5x4 mm² up to 30 A, -5x6 mm² up to 38 A, -5x10 mm² up to 54 A.
• Single-phase machines cables: -3x1.5 mm² up to 16 A, -3x2.5 mm² up to 25 A.

Do not stretch or crush the cable. Connect the appliance to an equipotential system using the screw marked with symbol 5021 - IEC 60417. The equipotential cable must have a 10 mm² cross-section. Respect wiring diagram polarities.

Warning: Do not use multi-sockets, adapters, or cables of inadequate cross-section or type, or extensions not conforming to regulations.

3.4 Water Circuit Hookup

Connect the appliance to the water supply with a flexible hose. Install a shut-off valve close to the appliance. Water supply temperature, pressure, and flow rate (min. 20 l/min) must match the technical data plate. If water hardness exceeds 14 °f (8 °dH), use an internal or external water softener. For high conductivity minerals, consider a demineralisation system. Do not supply fully demineralised water to machines with copper pipes.

3.5 Connection to the Drain Line

The drain line must have a free drain sump with siphon. The hose must reach the sump without obstruction. The drain sump must be lower than the machine's base for gravity drainage. If the drain is not lower, a version with a drain pump can be used, with the drain connection no higher than 1 m. Ensure the drain works properly and is not blocked. Any other solution requires manufacturer approval.

3.6 Rinse Aid and Detergent

Rinse aid and detergent are dispensed by the integral dispenser. The installer sets the dosage based on water hardness and calibrates the dispensers. Fill dispenser tubes before calibration. Ensure sufficient fluid level for priming. Do not use corrosive or impure products. NEVER use CHLORINE or HYPOCHLORITE based detergents. Automatic detergent dispensers are recommended.

Chapter 4: Using the Machine

4.1 Key and Symbols

Refer to Fig.1 for button and LED identification:

• 1: ON/OFF BUTTON
• 2: DRAIN BUTTON
• 3: PROGRAMME SELECTION BUTTON
• 4: START BUTTON
• 5: POWER LED
• 6: CYCLE UNDERWAY LED
• 7: HEATING UNDERWAY LED

Button and LED arrangement may vary by machine type.

4.2 Switching the Dishwasher On

Turn on the main power switch and open the water tap. Check for overflow. Press ON/OFF (1). The POWER LED (5) illuminates, and filling begins. The HEATING UNDERWAY LED (7) stays on until the working temperature is reached.

4.3 Filling the Rack

Use a suitable rack, fill without overloading or overlapping dishes. Wipe dishes before loading. Do not place dishes with dry residues. Place empty dishes facing downwards. Place plates with inner surfaces facing upwards. Place cutlery in the basket, handle end down. Do not mix silver and stainless steel cutlery. Wash dishes immediately after use. Use only dishwasher-proof dishes.

4.4 Cycle Selection and Start-up

4.4.1 Under-counter Dishwashers

Select the appropriate wash cycle using PROGRAMME SELECTION (3). Press START (4) to begin; the CYCLE UNDERWAY LED (6) flashes. The LED goes off upon cycle completion. For rapid drying, remove the rack immediately after the cycle. To stop a cycle early, press and hold START (4) for a few seconds.

4.4.2 Hood Dishwashers

Select the wash cycle using PROGRAMME SELECTION (3). Press START (3) for automatic start. Lower the hood; the cycle begins, and the CYCLE UNDERWAY LED (5) flashes. The LED goes off upon completion. Subsequent cycles start by lowering the hood. Remove the rack for rapid drying. To stop a cycle early, press START (3).

4.5 Removing the Integral Filter

Move wash and rinse arms to the edge of the door. Lift each semi-filter by its handle.

4.6 Emptying the Dishwasher

4.6.1 Appliances with No Drain Pump

Switch off the dishwasher. Remove the integral filter (Fig.7 A). Pull up and remove the overflow pipe (Fig. 8 B). Wait for the tub to empty. Extract and clean the tub filter if necessary (Fig. 8 C).

4.6.2 Appliances with Drain Cycle (*optional)

Switch off the dishwasher. Remove the integral filter (Fig.7 A). Withdraw the overflow pipe (Fig.9), if present. Close the door. Press the DRAIN (2) button for a few seconds to start the cycle. The POWER LED (5) stays on, and the CYCLE UNDERWAY LED (6) flashes during the drain cycle. The machine then switches off. Extract and clean the tub filter if necessary (Fig. 8 C).

4.7 Turning the Dishwasher Off

Press the ON/OFF button (1). The POWER LED (5) will continue to flash, indicating power is supplied.

4.8 End of Shift

Drain the machine. Disconnect the power supply via the main switch and close the water cock. Perform routine maintenance and cleaning. Leave the door ajar to prevent odors.

Chapter 5: Maintenance

5.1 General Rules

Before maintenance, drain all water, shut off power, and close the water supply cock. Do not use high-pressure water. Clean body panels with cold water and a steel-specific product. Drain water from the boiler and wash pump if there is a risk of ice formation.

5.2 Cleaning

Regular maintenance is essential. Periodically run a sanitizing treatment with suitable non-corrosive commercial products.

5.3 Cleaning the Filter Unit

Perform at the end of the day or when filters are dirty:

1. Remove and clean baskets.
2. Empty the tub as explained in “Machine draining”.
3. Remove and clean all filters.
4. Do not use abrasive products on the tub.
5. Restore all removed parts.

5.4 Cleaning the Arms

Remove wash and rinse arms to clean nozzles and prevent blockages. Undo nut R and remove arms. Wash parts under running water, cleaning nozzles with a toothpick or pointed tool if needed. Clean arm rotation pins and the water drainage area. Restore arms and check rotation.

Chapter 6: Self Diagnostics

The machine has a self-diagnosis system that warns of malfunctions via fast-flashing LEDs. Consult the table for error codes:

• Power LED flashing: Electro-mechanical safety device triggered (thermostats, level switch). Check drain blockage. Switch off/on.
• Power LED and Cycle LED flashing: Water filling fault. Check water supply/overflow. Switch off/on and refill.
• Cycle LED flashing: Rinsing temperature reset fault. Boiler temperature did not reset in time. Switch off/on and run new cycle.
• Heating LED flashing: Tub or boiler thermometer fault (probe open or short-circuit). Machine cannot read temperature. Switch off/on.

Warning: Switching the machine off and on again resets signals. If the problem persists, contact an Authorized Service Centre.

Chapter 7: Dosing Unit Settings

If equipped with dosing units, settings can be adjusted as follows:

1. Machine in standby with door open.
2. Press and hold DRAIN (2) and START (4) buttons.
3. CYCLE LED (6) flashes, indicating programming mode.
4. Press START (4) to adjust detergent dosing time (1 second per press; POWER LED (5) flashes).
5. Press DRAIN (2) to adjust rinse aid dosing time (1 second per press; HEATING LED (7) flashes).
6. Settings are erased each time programming mode is entered.
7. Close the door and turn on the machine with ON/OFF (1) to save settings.

Chapter 8: Scrapping

Maxima machines do not require special handling for scrapping. The mark on the product indicates it should not be disposed of with domestic waste. Keep this product separate and recycle it to promote sustainable material use.

Domestic users should contact their local authority for disposal information. Corporate users should check contract terms. The product may not be scrapped with commercial waste.

Chapter 9: Environment

Respect for the Environment:

• Only wash full baskets.
• Switch the dishwasher off when not in use.
• Keep the machine closed when in standby.
• Use wash programs suited to the soiling amount.
• Supply with hot water if gas heated.
• Ensure drains flow into a suitable sewer.
• Do not exceed recommended detergent doses.

Chapter 10: Appendix

Refer to figures for operational diagrams and button functions.