UF2020AX1A - Ice Maker Scotsman - Free user manual and instructions

USER MANUAL UF2020AX1A Scotsman

User and Installation Manual for Models UN0815AX-1A, , UN1215AX-1A, UN1520AX-1A, UF1415AX-1A, UF2020AX-1A, and UF0915AX-1AUF0915X, 1415X, 2020X and UN0815X, 1215X, 1520X User Manual March 2024 Safety Information Important Safety Information. Make sure to read through fully to avoid severe injury or death. This ice machine contains FLAMMABLE

• Maximum air temperature: 100°F or 38°C There are limits to the voltage supply to the unit, voltages vary by model: Voltage

• Maximum water temperature: 100°F or 38°C. Quality

• Water supply must be potable by the localities denition. Water Pressure

• Maximum pressure, static: 80 psi or 5.5 bar

• Minimum pressure, dynamic: 15 psi or 1 bar Water Conductivity

• The water supply must have a conductivity of at least 10 microSiemens/cm. A drain will be needed for melted ice and rinse water. Warranty: The warranty statement for this product is provided separately from this manual. Refer to it for applicable coverage. In general warranty covers defects in material or workmanship. It does not cover maintenance, corrections to installations, or situations when the machine is operated in circumstances that exceed the limitations printed above. This is a commercial model, if installed in a residence some commercial service companies may not be able to service it on site. The manufacturer has designed and produced this machine with the nest in materials. The manufacturer assumes no liability for units that have been altered in any way. Alterations or part substitutions will void the warranty. Specications and designs are subject to change without notice. Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed UL60335-2-89, veried by Intertek, ETL. Fill out the Warranty Registration by using the attached warranty and mailing it in, or scan the QR code to be taken to the Scotsman warranty website: Options: There are two oor mounting kits available:

• KUFM15: for 15" models

• KUFM20: for 20" model Important DetailsUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 3 This appliance is intended to be used in commercial applications including:

• Hotels Dimensions and Electrical: Location: The unit can be built into a cabinet as the air ow is in and out the front. The front of the machine must not be blocked. Certain maintenance or repair procedures will require removal of the top, back and side panels, so plan ahead for service and maintenance needs. Spacing: No additional spacing is required at the top or sides. However, suggested minimum side clearance for installation is 1/8 inch or 3 mm and suggested minimum top clearance is 1/4 inch or 7 mm. Allow 4 inches (100 mm) minimum space at the back for the utility connections. Do not block louvers at the front of the cabinet. Air OUT Air IN Model Electrical (volts/Hz/Phase) Ice Form Width (in / cm) Depth (in/cm) Height (w/o legs) (in/cm) Power Cord UN0815AX-1A 115/60/1 Nugget 15 / 38 23.7 / 60.3 31.94 / 81.1 5-15P UN1215AX-1A 115/60/1 Nugget 15 / 38 23.7 / 60.3 31.94 / 81.1 5-15P UN1520AX-1A 115/60/1 Nugget 20 / 51 23.7 / 60.3 31.94 / 81.1 5-15P UF0915AX-1A 115/60/1 Flake 15 / 38 23.7 / 60.3 31.94 / 81.1 5-15P UF1415AX-1A 115/60/1 Flake 15 / 38 23.7 / 60.3 31.94 / 81.1 5-15P UF2020AX-1A 115/60/1 Flake 20 / 51 23.7 / 60.3 31.94 / 81.1 5-15P Pre-InstallationUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 4 Remove all shipping and packing materials that may be in the ice storage bin. The unit can be installed with or without legs. The cabinet is equipped with small bumpers on the base to allow placement without legs. An optional oor mounting kit is also available to ll the gap between the machine and oor if not using legs. If using legs, carefully tip the machine and install the legs by screwing them into the leg sockets in the bottom of the machine. For reference, the thread size is 5/8-11. If the machine has been tipped onto its side or back allow 1 hour before starting the unit for the oil in the refrigeration system to return to the compressor. Place the machine in its intended location and level it front to back and left to right. If using legs, adjust their feet in and out to level the cabinet. If legs are not used the bottom edges of the cabinet must be sealed to the oor to pass most codes. If built into a cabinet, the adjacent cabinet walls will provide the means for containment. There are no means for attachment to the cabinet. Be sure to remove the plastic covering the exterior panels, if left on it will be much harder to remove later. Location of Dataplate Model and Serial plate with QR code located behind front panel. Unpacking and Setup Model and Serial Number DataplateUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 5 95.4cm 37.6in 81.1cm 31.9in 29.8cm 11.8in AIR OUTLET AIR INLET 48.3cm 19.0in 68.9cm 27.1in 15.2cm 6.0in 10.2cm 4.0in MINIMUM UTILITY CLEARENCE 60.3cm 23.7in 38.1cm 15.0in DRAIN 3/4" FPT POTABLE WATER INLET 1/4" OD. PLASTIC TUBING (5ft) POWER CORD Cabinet Layout, UN0815X, UN1215X, UF0915X, UF1415XUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 6 15.8cm 6.2in 3.7cm 1.5in 8cm POWER CORD POTABLE WATER INLET 1/4" OD. PLASTIC TUBING (5ft) DRAIN 3/4" FPT 19.1cm 7.5in Back View, UN0815X, UN1215X, UF0915X, UF1415XUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 7 95.4cm 37.56in 42.5cm 16.75in 81.1cm 31.94in AIR INLET AIR OUTLET 48.3cm 19.00in 68.9cm 27.13in 15.2cm 6.00in 10.2cm 4.00in MINIMUM UTILITY CLEARENCE 50.8cm 20.00in 60.1cm 23.67in POWER CORD POTABLE WATER INLET 1/4" OD. PLASTIC TUBING (5ft) DRAIN 3/4" FPT Cabinet Layout, UN1520X, UF2020XUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 8 DRAIN 3/4" FPT POWER CORD 32cm 12.61in 15.8cm 6.21in 7cm 2.75in 8cm 3.17in 3.7cm 1.46in POTABLE WATER INLET 1/4" OD. PLASTIC TUBING (5ft) Back View, UN1520X, UF2020XUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 9 Component Location All models are essentially automatic and require very little contact other than routine cleaning. The cleaning process does require understanding of certain components. They include the on and o󰀨 buttons, condenser ns, water reservoir and ice breaker. Power Status Water De-scale Sanize On Off Front Panel Removed. On and O Buttons and Indicator Lights Unit viewed from above with top panel removed Ice Sweep Reservoir Ice Breaker Float Valve Lever Condenser FinsUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 10 Connect the Water Supply Plumbing information:

• The water supply connection is at the back panel. It is a 5 foot (1.5 meter) 1/4 inch (6.35 mm) OD plastic tube.

• A hand actuated valve within site of the machine is required to isolate the unit when it’s being serviced.

• The machine has a built-in back ow preventer (an air gap between the water’s entry point and the top of the reservoir water), no additional back ow preventer is needed.

• Water ow rate into machine is .125 gal/min Units that are built into a cabinet: Include a loop or coil of tubing between the water supply and the connection on the ice machine. When the machine is pushed back into the cabinet the tubing will coil and not kink. Connection Information: Important: Connect to potable water supply only. Open the hand water valve to ush water through the connection point before connecting to the ice machine.

1. Cut cable ties securing hose and power cord to

2. Connect to cold, potable water using the

necessary adapters for the 1/4 inch OD plastic tube.

• If using compression ttings they require a ferrule or sleeve and insert.

• A female 3/8 compression adapter x 1/4 OD compression allows connection to a typical 3/8 OD compression angle valve.

• Another connection method is by quick connect ttings. Note: Do not use a piercing-type saddle valve to connect to the building’s water supply. Valves of that type restrict water ow and clog easily. Connect the drain The drain connection is at the back panel. The tting size is 3/4 FPT. And it is plastic. Do not overheat.

• Drain tube material must be rigid and meet local code.

• Traps in the bin drain line without vents ahead of them will cause poor draining

• The drain must be vented if there is a long horizontal run 5 feet or more. All drains are gravity and must have a minimum fall of 1/4" per foot of horizontal run.

1. Connect rigid tubing to this tting and vent it at the

machine, use an 8 inch or 200 mm vertical tube for the vent.

2. Slope drain tubing down from the ice machine to

the building drain and the slope must be at least 1/4 inch per foot or 20 mm per meter.

3. Insulate the drain tubing to reduce condensation

and is recommended for environments that have high humidity. Due to the potential for leaks, condensate pumps are not recommended. Drain Fitting, 3/4 FPT Potable Water Inlet TubeUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 11 Connect the Power This is a cord-connected unit, and must be connected to its own dedicated power supply. Check the dataplate on the back of the machine to conrm the voltage and per the dataplate use fuses or HACR circuit breakers. Power Cord: This 115 volt model is equipped with a cord and 5-15P plug. This is a cord-connected unit, and must be on a separate power supply. Check the dataplate for the voltage, ampacity and maximum fuse size and per the dataplate use fuses or HACR circuit breakers. This ice machine should be installed on a dedicated circuit with a properly sized HACR-rated breaker or fuse. No other devices or appliances should be connected to the same circuit with the ice machine. Installing a unit on a shared circuit can cause product malfunctions or damage to the unit. The proper circuit size can be found on the unit data tag listed as “MAX FUSE OR HACR TYPE CIRCUIT BREAKER”. Never allow the fuse size to exceed the maximum fuse size listed on the data tag. The use of a ground fault circuit interrupter (GFCI) or arc-fault circuit interrupter (ARCI) can lead to nuisance trips and is not recommended for use on most appliances including our equipment. If local codes or other specications require the use of ground fault circuit interrupters, a properly rated HACR GFCI or ARCI circuit breaker should be used. An outlet type GFCI or ARCI is not recommended for ice machines and other refrigeration equipment due to more frequent nuisance trips of the GFCI or ARCI. Always check with your local electrical inspector about the specic code requirements in your area for GFCI or ARCI breakers and GFCI or ARCI receptacles. Follow All Local Codes - This Unit Must Be Grounded. Do not use extension cords and do not disable or by-pass ground prong on electrical plug. Plug the power cord into the proper power supply. Note: Electrical outlets can become worn and the power supply can then be erratic. Have it replaced if the connection is loose. After utility connections

1. Level the cabinet, use the leg levelers on the end

of the legs to adjust to cabinet height. Legs should have been installed when the unit was unpacked.

2. Wash the bin and door. If desired, the interior of

the bin could be sanitized.

3. Locate the scoop, wash it and have it available for

use when needed. Installation check list

• Has the machine been installed indoors in an environment suitable for it?

• Have all of the shipping items and packaging been removed?

• Has the plastic covering the exterior panels been removed?

• Has the water supply been connected and conrmed to not leak?

• Has a properly sized and sloped drain tube been attached?

• Has the correct voltage power supply been connected?UF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 12 Initial Start Up

1. Remove the front panel by removing the two screws holding it to the cabinet and pulling the panel down

2. Turn on the water supply, correct any leaks.

3. Locate the On push button.

4. Conrm that the Power indicator light is on and that the Water indicator light is o󰀨.

If the Water indicator light is blinking red, the unit will not start as there is no water sensed and ice cannot be made. Correct any condition keeping water from lling the reservoir.

5. Push and release the On button.

6. The Status indicator light will be on. Warm air will begin to blow out the left front of the machine and the

auger drive motor will switch on. Within a minute or so the ice will fall down and slide into the ice storage bin. It is normal for a small amount of water to also drip from the ice making area.

7. Check for any unusual noises, such as fan motor vibration and correct as needed.

8. Return the front panel to its normal position.

Power Status Water De-scale Sanize On OffUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 13 Front Panel Removed. On and O Buttons and Indicator Lights Use and Operational Notes To use, simply lift the door by its bottom edge and slide it up and into the top of the machine. Use the scoop to remove ice and close the door. The machine will make the most ice if it has plenty of room to breathe. This is an air cooled product and it must be able to take in room air and discharge air heated by the ice making process. Blockage of vents or exposure to excessive heat will reduce the ice making and storage capacity. The storage bin is insulated but not refrigerated, so ice will melt during use. That is normal and assures that fresh ice is available in the bin. The fan will make some noise during operation, however rattles and other vibrations are not normal and should be attended to. If the machine is in a space colder than the minimums listed it can become damaged. Caution: The cabinet is not designed to support anything placed on it. Do NOT step or stand on it. On and O󰀨 The On and O󰀨 buttons are located behind the louvered front panel. Remove that panel to access those buttons. To Shut O󰀨: Push and release the O󰀨 button and the unit will begin a shut down. Push and hold the O󰀨 button for an immediate shut o󰀨. Status Indicator Light Glows green when either making ice or when the bin is full of ice (optical sensors blocked by ice). Clean Indicator Light Serves as a reminder that it is time to have the unit cleaned. Normally o󰀨. This light glows after 6 months of power up time between cleanings. It will go out after the unit has been cleaned using the process in this manual and / or the one on the ice machine’s cleaning label. Water Indicator Light Normally o󰀨. It glows when there is power to the unit but no water sensed in the reservoir. A lack of water will trigger a unit shut down. The unit will automatically restart after water has been restored. Power Status Water De-scale Sanize On OffUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 14 Frequency: Recommended about twice a year. Units that are used heavily or are on highly mineralized water may require more frequent cleaning. Cleaning this machine involves adding a solution of scale remover and water to the ice machine and continuing to add it as it makes ice. The scale remover must be diluted to the correct ratio. This is followed by sanitizing. The ice machine must be connected to power, water and drain during this process. Recommended tools: Rubber gloves, small scrub brush & scale remover.

1. Remove the top panel for reservoir access.

Note: If the unit must be pulled out to remove the panel and access the water reservoir, be sure that the water supply, drain and power remain connected

2. Remove the front panel for control access.

3. Scoop out and discard all of the ice.

4. Press and hold the O󰀨 button until the machine shuts o󰀨.

5. Locate oat valve on/o󰀨 lever. Rotate to shut water supply OFF.

6. Push tab on front edge of reservoir cover and remove the cover.

Note: Adjacent wires are low voltage and are not hazardous.

7. Locate drain plug and pull the drain plug out to drain the reservoir and evaporator. When draining is

complete, return the plug to its original position.

8. Mix a solution of Clear 1 scale remover with water: 2.5 ounces of Clear 1 with 1 quart (32 oz) of warm

(90°F/32°C to 110°F/43°C) potable water. Note: Take care not to spill any scale remover on any nearby surface. Immediately wipe any spill with baking soda and water.

9. Fill the reservoir with the scale remover solution. That will be about 8 ounces.

10. Unscrew (rotate CCW) and remove the ice sweep.

11. Wash the ice sweep and lower part of the breaker with the scale remover solution. Remove as much scale

as possible. Caution: Be SURE no scale remover contacts the bearing.

12. Return the ice sweep to its original position.

13. Press and HOLD the both the On and O󰀨 buttons for 5 seconds. The Time to Clean light will blink on and

o󰀨. The auger motor will be operating for 20 minutes, after that the compressor will start and in about 5-8 minutes the machine will start to make ice. The Time to Clean light will now glow steady until the clean cycle is complete. Caution: Keep ngers away from moving parts. Maintenance: Cleaning The Water System Ice machine scale remover contains acids. Acids can cause burns. If concentrated cleaner comes in contact with skin, ush with water. If swallowed, do NOT induce vomiting. Give large amounts of water or milk. Call Physician immediately. Keep out of the reach of children.UF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 15

14. After ice making starts, continuously add scale remover solution to the reservoir to keep it about half full.

15. When all remaining solution is used, rotate the oat valve lever to the ON position. Ice will continue to be

16. After 40 minutes (20 of no ice making and 20 making ice) the ice machine and all the control panel lights

17. Rotate oat valve lever to O󰀨 and pull the drain plug again to drain the system, then replace it.

18. Pour a gallon of hot (95°F – 115°F) water into the bin to ush out the drain and melt all ice that was made

during the cleaning process. Be sure all ice is melted.

19. Mix another solution of 2.5 ounces of Clear 1 Scale Remover and 1 quart of 90°F/32°C to 110°F/43°C

potable water and clean the bin liner of mineral scale by using the scale remover solution to scrub the scale o󰀨 of the liner.

20. Rinse the liner with hot water.

Sanitize Water System after scale removal to complete the Water System Cleaning process.

1. Create a solution of sanitizer.

2. Mix 4 oz/118ml of NuCalgon IMS and 2.5 gal/9.5L of (90°F/32°C to 110°F/43°C) potable water to create a

3. Rotate the reservoir’s water shut o󰀨 valve to shut the water supply OFF. If water reservoir cover has been

placed on reservoir, remove it.

4. Pour the sanitizing solution into the reservoir until it is full to but not over the overow point (about 8 oz) and

5. Press the On button to turn the ice machine ON.

6. Operate the machine for at least 15 minutes, adding sanitizer to the reservoir as needed to keep it at least

half full, and then push and release the O󰀨 button to shut it OFF.

7. Remove the ice sweep.

8. Wash the reservoir cover, ice sweep, breaker and the inside of the ice chute with the sanitizer solution.

Caution: Do not allow sanitizer to contact the bearing.

9. Return the ice sweep to its normal position.

10. Return the reservoir cover to its normal position.

11. Drain the solution from the system by pulling the drain plug.

12. Return plug when drained.

13. Rinse bin liner with clean water. Be sure all ice has been melted.

14. Use sanitizer mix on all bin surface areas and areas that may contact the ice.

15. Rinse with clean water.

16. Rotate water shut o󰀨 valve to turn the water supply ON.

17. Push and release the On button to restart ice making.

18. Operate the machine for 15 minutes and then pour water onto the ice in the bin until it has all been melted.

19. Return the top and front panels to their normal positions.

The ice scoop should be washed regularly, wash it just like any other food container.UF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 16 Cleaning the Condenser

1. Remove the front panel.

2. Push and hold the OFF button until the machine

stops and / or the Status light is not glowing.

3. Vacuum the surface of the condenser ns,

carefully brush o󰀨 any loose dirt. If grease is embedded use coil cleaner to wash it out.

4. Push and release the On button.

5. Return the front panel to its original position.

Other maintenance Clean the optical sensors.

1. Mix solution of 4 ounces of Clear 1 Ice Machine

Scale Remover and 1.5 qt/1.4L of 90°F/32°C to 110°F/43°C water.

2. Remove sensors from inner cover by removing

3. Use cotton swab and cleaning solution to

thoroughly clean photo sensors.

4. Rinse sensors with clean water.

5. Reinstall sensors in inner panel.

Condenser Surface Power Status Water De-scale Sanize On Off Moving parts hazard. Risk of personal injury. Disconnect electrical power or shut unit OFF before proceeding.UF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 17 Before Calling For Service No ice – check water supply. Restore water supply to unit if shut o󰀨. Remove front panel and check water indicator light, if ON, the unit is not sensing water. Note: Unit will automatically restart when the water supply is restored. Note: Unit will NOT operate if connected to an ultra pure water supply. Conductivity must be above the listed limit (see page 3). No ice – check power supply. Remove front panel, if there are no lights on the control panel there is no power to the controller. Conrm unit is plugged into a working outlet of the correct voltage. Note: Unit will automatically restart when power is restored. No ice - check for false bin full caused by mineral scale on the optical sensors, located at the top of the ice chute. Status light green with no ice being made is a sign of false bin full. Carefully clean the optical sensors of accumulated scale. Do not scrape with a sharp object. Slow production – check condenser for dirt, clean condenser. Slow production – check temperature of cabinet, if the room is hot or air ow restricted, production will be slow. All four indicator lights are blinking: Call for service. Power Status Water De-scale Sanize On OffUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 18 Wiring Diagram - UF0915X & UN0815XUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 19 Wiring Diagram - UF1415X & UN1215XUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 20 Wiring Diagram - UF2020X & UN1520XUF0915X, UF1415X, UF2020X, UN0815X, UN1215X, and UN1520X User Manual March 2024 Page 21 Decommissioning Only qualied technicians familiar with R290 refrig- erant should decommission a machine, as special tools and containers are required for the removal, transportation, and disposal of this highly ammable substance.

• Before attempting the procedure:

• Ensure that all protective gear is present and used throughout the procedure.

• Make sure recovery equipment and containers are available and ready for use. All containers used for recovery must be rated for R290 refrigerant and must be labeled as such.

• Weigh any refrigerant prior to reclaiming.

• Maintain safety through standard operating proce- dures as outlined on page 20 of this document. Be sure to follow local, state, and federal guidelines for proper disposal.

• Do not ll containers more than 80% and do not exceed the pressure limits of the container. Make sure the machine to be decommissioned is in satisfactory working order and that the electrical components of the machine are properly sealed to prevent ignition.

• Recovered refrigerant should not be charged into another refrigerating system or mixed in another container.

• Make sure to safely transport the refrigerant in line with standard operating procedures.

• All recovered refrigerant must be returned to re- frigerant supplier for proper disposal.