COMMERCIAL ICE MAKER Instruction Manual

Thank you for your purchase. For any questions, please do not hesitate to contact us. We will handle all your problems ASAP. Your feedback is vital to us! We will always try to do better. For more details, please contact us by email via support@rovsun.com. (Write your seller's Order # on the subject of the email, so that we can find your order and better assist your issue) Or call us at (1)855-882-2333.

1 - IMPORTANT SAFETY INFORMATION

  1. This unit must be properly installed in accordance with the installation instructions before it is used.
  2. This appliance must be earthed and use the 115V / 60Hz earthed power supply. Never remove the ground prong. Never use an adapter.
  3. Do not run the cord over carpeting or other heat insulators. Do not cover the cord. Keep the cord away from traffic areas, and do not submerge in water. No other appliance should be plugged into the same outlet.
  4. We do not recommend the use of an extension cord as it may overheat and cause a risk of fire. If you must use an extension cord, use a No. 14 AWG minimum size and rated no less than 1875 watts.
  5. To avoid a hazard due to instability of the appliance, it must be placed on an even or flat surface.
  6. Do not damage the refrigerant circuit.
  7. Do not use your unit outdoors. Keep the unit away from direct sunlight and make sure that there is at least 15 cm of space between the back of your unit and the wall, and keep the front free. Keep ventilation openings in the appliance enclosure or in the built-in structure clear of obstruction.
  8. If the unit is brought in from outside in the winter season, give it a few hours to warm up to room temperature before plugging it in.
  9. Do not tip over the unit, which will cause abnormal noise and make the ice-cube size abnormal. And seriously, it may cause water leakage from the unit.
  10. Do not use any liquid other than water to make ice cubes.
  11. Do not clean your ice maker with flammable fluids; the fumes can create a fire hazard or explosion.
  12. Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
  13. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.
  14. If for any reason this product requires service, we strongly recommend that a certified technician perform the service.
  15. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
  16. NOTE: The wires in this mains lead are colored in accordance with the following code: Green or Green with a yellow strip: Grounding; White: Neutral; Black: Live.

Suggestions:

  1. Clean the machine first; please discard the first batch of ice.
  2. The first ice-making time may be longer, about 20-30 minutes, which is normal. The second ice-making time will be normal after the machine is cooled.
  3. Allow 4 hours for the refrigerant fluid to settle before plugging the ice maker in, as the unit may fall upside down during shipping or transportation.

2 - SPECIFICATIONS

MODELHZB-45
POWER SUPPLY VOLTAGE1Phase, 115V/60Hz
ICE MAKING RATING (Amps)3.5 Amp
ICE HARVEST RATING (Amps)5.5 Amp
ICE MAKING CAPACITY (LBS/24H)100 lbs/24 Hour
REFRIGERANT CHARGER134A, 240g
UNIT DIMENSIONS (L x W x H) (in)18" x 16" x 31"
NET WEIGHT/GROSS WEIGHT (LBS)63 lbs/68 lbs
CONNECTIONPOWER CORD----18AWG; WATER SUPPLY----6.35mm diameter; DRAIN----16 SYLPHON BELLOWS (REAR)
WATER CONSUMPTION (L/24H)50 L
MAX ICE STORAGE CAPACITY (LBS)33 lbs
ACCESSORIESICE SCOOP, INSTALLATION KITS
RUNNING CONDITIONSROOM TEMP 50-104 °F; WATER SUPPLY TEMP 41-95 °F; WATER SUPPLY PRESSURE 0.04-0.6 MPa

NOTE: TESTED AT 70°F ROOM TEMP AND 50°F WATER TEMP.

Package Includes:

3 - GENERAL INFORMATION

1) Main Unit Construction

The main unit consists of the following parts:

2) Operation Panel

A. "TIMER CLEAN" button

  1. Quickly press this button once to enter the Timer setting program.
  2. Press this "TIMER CLEAN" button for more than 5 seconds to enter the Self-cleaning program.

B. "ON/OFF" button

  1. When the unit is off, press this button to turn on the unit.
  2. During the Self-cleaning program or normal ice-making state, press this button to turn off the unit immediately.
  3. If the unit is set with the Timer, press this button to cancel the Timer setting.
  4. When the unit is making ice cubes, press this button for more than 5 seconds; the unit will switch to the ice harvest process by force.

C. LCD display window

  1. Ice making time countdown display and environmental temperature display. Displays ice-making time countdown with 'M' as the unit, and displays environmental temperature with '°F' as the unit.
  2. Making ice and deicing symbol display. The machine is making ice when the symbol rotates (▶️), and the machine is deicing when the symbol flashes.
  3. Self-cleaning symbol display (⚙️).
  4. On/off symbol display (⏻).
  5. Error code display. E1 means the environmental temperature sensor is damaged; E2 means ice-making anomaly or refrigerant leak.
  6. Water flow in and water shortage display. The arrow flashing indicates water is flowing into the machine; the whole symbol being bright indicates the machine is short of water.
  7. Ice full alarm (?). The machine will make ice again when you take out the ice.
  8. Setting display. Displays ice-making time setting with 'M' as the unit, and displays timing switch machine with 'H' as the unit.

D & E. "+", "-" button

  1. Used to adjust the ice-making process duration period length. The default setting is zero; 1 minute is added or decreased per each press of the "+" or "-" button.
  2. Also used to adjust the delay time of the timer. The default setting is zero; 1 hour is added or decreased per each press of the "+" or "-" button.

3) Ice-making and its water tank parts

4 - OPERATING PROCEDURES & MAINTENANCE

1) Unpacking

  1. Remove the exterior and interior packaging. Check if all accessories are inside. If any parts are missing, please contact customer service.
  2. Remove the tapes for fixing the door and inner cabinet, ice scoop, etc. Roughly clean the inner cabinet & ice scoop with a wet cloth.
  3. Put the ice maker on a level & flat floor, without direct sunlight and other heat sources (like stove, furnace, radiator). Make sure there is at least 20 cm gap between the air outlet and obstacles, and at least 5 cm between the left/right side and the wall.
  4. Allow 4 hours for the refrigerant fluid to settle before plugging the ice maker in, as the unit may fall upside down during shipping or transportation.
  5. The appliance must be positioned so that the plug is accessible.

NOTE: Connect to the potable water supply only. Only use drinking water.

2) Cleaning Before First Using

  1. Open the ice getting door.
  2. Clean with diluted detergent, warm water, and a soft cloth.
  3. Repeatedly clean the water-contacting inner parts. You can pull the Water drain pipe of the water tank (indicating "H") to drain the cleaned water in the water tank. Then, clean the inner ice-storing cabinet until all inner parts are clean. Drain all cleaned water from the water drain port located at the unit's back (indicating "7"). Re-install the water drain pipe of the water tank and the cap of the unit's water drain port; otherwise, the unit will not make ice normally. It is suggested that you should discard the ice cubes made by the first ice-making cycle after cleaning.
  4. The outside of the ice maker should be cleaned regularly with a mild detergent solution and warm water.
  5. Dry the interior and exterior with a clean soft cloth.

3) Installation Location Requirement

  1. This unit is not for outdoor use. Keep the proper room temperature and inlet water temperature according to the specification table above; otherwise, it will affect the ice-making performance.
  2. This unit should not be located near any heat source.
  3. This unit should be located on a firm & level foundation at normal counter top height.
  4. Do not put anything on top of the ice maker.
  5. To ensure proper ventilation for your ice maker, the front of the unit must be completely unobstructed (at least 250 mm free space). Allow at least 50 mm clearance at the rear, and 50 mm at the top and sides for proper air circulation. The installation should allow the ice maker to be pulled forward for servicing if necessary.
  6. When installing the ice maker under a counter, follow the recommended spacing dimensions shown above. Place electrical and water supplies and drain fixtures in the recommended locations as shown.
  7. Choose a well-ventilated area with temperatures above 50°F and below 104°F. This unit must be installed in an area protected from the elements, such as wind, rain, water spray, or drips.
  8. The ice maker requires a continuous water supply with a pressure of 0.04-0.6 MPa as required in the specification table above. The temperature of the water feeding into the ice maker should be between 41-95°F for proper operation.

4) Water Connection

NOTE: Be sure to use the new hose-sets supplied with the appliance to connect to water mains and that old hose-sets should not be reused.

1. Connect the water supplying hose to the unit

  1. First, remove the clipper on the water inlet port for water supply (indicated in the following illustration "B") located at the unit's back. Then, push inwards the anti-dusty plug; use your other hand's finger to press the outer circle to fix the anti-dusty plug, then take down the anti-dusty plug.
  2. Insert one end of the white water hose into the water inlet port, push inward completely, and install back the clipper. The water hose connection is then completed.

Important: The water pressure of the main water supply system must be at least 0.04-0.6 MPa.

2. Connecting the water drain pipe

Pull out the water drainage cap with a black color (indicated A), then connect the white drainage pipe included in the accessory. Connect the other end of this drainage pipe to the main water drainage pipeline.

3. Connect the water hose to the water faucet of the water main supply system

  1. Install the supplied water quick-connector to the water faucet by screw thread.
  2. Remove the clipper from the water quick-connector, insert the other end of the water hose into this quick-connector port completely, then install back the clipper. This step is also completed.

5 - OPERATION THE UNIT

1) Operation The Ice-Making Process

1. Starting up

  1. Plug in the power plug; the symbol (⏻) will flash in the display window.
  2. Press the ON/OFF button on the control panel. The external pipe can add water to the water tank through the electromagnetic water valve. After reaching the standard water level, the machine will start to make ice, then the symbol (▶️) will change to light on always in the display window and the symbol (⍓) will rotate.
  3. The ambient temperature will be displayed in the upper left of the display window (e.g., "80°F" means the ambient temperature is 80°F). After several minutes, flashing numbers will be displayed in the ambient temperature display area. The flashing number "10 M" means there are still 10 minutes to finish this ice-making cycle.

2. Ice making cycle

  1. Every ice-making cycle finishes, entering the deicing process; the symbol (⍓) flashes. The external pipe can add water to the water tank through the electromagnetic water valve, and the arrow on the symbol will flash until the water reaches the standard level, then the symbol extinguishes, and the unit enters the next ice-making cycle.
  2. When the water cannot reach the standard level, the symbol (?) is always bright, and the unit stops working. After water shortage, the unit needs to be restarted, otherwise, it will start up automatically after 15 minutes.

Note: Each ice-making cycle is around 12-18 minutes, and the ice-making time varies according to the ambient temperature and the water temperature. Especially for the first ice-making cycle, it will be longer because of the high water temperature in the water tank, but the ice-making cycle will not exceed 30 minutes.

3. Adjust the ice thickness

  1. Press the "+" "-" buttons on the control panel to adjust the ice thickness. The number in the bottom left of the display window is the ice-making time setting; the default is "0".
  2. Press the "+" button once; the ice-making time will increase by one minute, and the ice will be thicker. Press the "-" button once; the ice-making time will decrease by one minute, and the ice will be thinner. Restarting the machine will revert to the default "0".

Note: The time currently set only changes the next and subsequent ice-making cycles.

4. Ice Full Alarm

When the symbol (?) lights up, the machine stops working. It will work again after you take out the ice.

5. Shut down the unit

  1. During the ice-making process, press the "ON/OFF" button on the control panel; the unit will shut down and enter standby mode.
  2. If you press "ON/OFF" for longer than 5 seconds during ice-making, the unit enters the deicing process directly. This function can help remove ice on the ice plate.
  3. Press "ON/OFF" to shut down the machine.

6. Timing setting

  1. Setting range: 1-24 hours.
    • A. Timing shutdown: When the unit is running, it can be set for timing shutdown.
    • B. Timing start-up: When the unit is on standby, it can be set for timing start-up.
  2. How to set up the timing:
    • A. Press the TIMER button on the control panel; the default timing time is "1 H" in the display window. Then press the "+" button to adjust the timing time you need. Each time you press the "+" button, the time adds 1 hour; pressing "-" can reduce the timing time.
    • B. During the process of time adjustment, the "H" in the lower corner of the number will flash. After 5 seconds of flashing without pressing, the "H" letter will change from flashing to always displaying, meaning the timer program has been completed.
    • C. In standby condition, displaying "5 H" means the unit will start automatically after 5 hours. In ice-making condition, displaying "5 H" means the machine will shut down automatically after 5 hours.
    • D. The "H" in the display screen indicates that the machine currently has a timing function. The number in front will become smaller and smaller until it becomes zero, the timing ends, and the machine enters the required mode.

3. How to cancel the timing

7. Automatic cleaning program

The default cleaning time is 20 minutes.

8. How to switch Fahrenheit (°F) to Celsius (°C)?

Press the "+" or "-" button for longer than 5 seconds; it will automatically switch.

6 - CLEANING & MAINTENANCE

1) Warming

  1. Before carrying out any cleaning or maintenance operations, unplug the ice maker from the main power supply (EXCEPTION: Ice maker self-cleaning program).
  2. Do not use any alcohol or fume for cleaning/disinfection of the ice maker. It may cause cracks on the plastic parts.
  3. Ask a trained service person to check and clean the condenser at least once a year to ensure the unit works properly.
  4. This appliance must be cleaned by using a water jet.
  5. If the ice maker has been left unused for a long time, before the next use, it must be thoroughly cleaned. Follow any instructions provided for cleaning or use of sanitizing solution. Do not leave any solution inside the ice maker after cleaning.
  6. Periodic cleaning and proper maintenance will ensure efficiency, top performance, hygiene, and long life. The maintenance intervals listed are based on normal conditions. You may want to shorten the intervals if you have pets, or the unit is used outdoors, or there are other special considerations.
  7. Never keep anything in the ice storage bin that is not ice; objects like wine and beer bottles are not only unsanitary, but their labels may slip off and obstruct the drain pipe.

2) Exterior Cleaning

  1. The door and cabinet may be cleaned with a mild detergent and warm water solution, such as 28 g of dishwashing liquid mixed with 7.5 L of warm water. Do not use solvent-based or abrasive cleaners. Use a soft sponge and rinse with clean water. Wipe with a soft clean towel to prevent water spotting.
  2. Stainless steel models exposed to chlorine gas and moisture, such as in areas with spas or swimming pools, may have some discoloration of stainless steel; this is normal and should be cleaned. Clean it with a mild detergent and a damp cloth. Never use abrasive cleaning agents.

3) Interior Cleaning

The ice storage bin should be sanitized occasionally. Clean the bin before the ice maker is used for the first time and reused after stopping for an extended period. It is usually convenient to sanitize the bin after the ice-making system has been cleaned and the storage bin is empty.

  1. Disconnect power to the unit.
  2. Open the door and, with a clean cloth, wipe down the interior with a sanitizing solution made of 28 g of household bleach or chlorine and 7.5 L of hot water (95°F to 115°F).
  3. Rinse thoroughly with clear water. The wastewater will be drained out through the drain pipe.
  4. Reconnect power to the unit.
  5. The ice scoop should be washed regularly. Wash it just like any other food container.

NOTE: Do not use strong cleaning agents or abrasives on the interior; these cleaners may transmit taste to the ice cubes or damage and discolor the interior.

4) Ice Making Parts Cleaning

During use, periodically clean these main systems of your ice maker.

  1. Repeat the above steps to clean the water tank and other inner parts of the unit.
  2. Specifically, for the water dividing pipe on the evaporator, when the compressor and water pump run normally, but if there is no water flowing out from the water dividing pipe or the water flow is very small, please discharge this water dividing pipe to clean carefully. Clean each small hole on the water dividing pipe shown in the following illustration, ensuring each hole is not clogged by anything, then install it back to the original location.
  3. When there are ice cubes on the surface of the evaporator but they cannot fall down easily, do not use mechanical means to remove them by force. Only press the "ON/OFF" button for more than 5 seconds; the unit will enter the ice melting process. After some while, the large ice cubes will fall down. Then turn off the unit and unplug the power cord to clean the surface of the evaporator.

4. For the water tank and ice-full detecting plate

  1. The water tank and the ice-full detecting plate are also very important to keep your ice cubes hygienic. Put a mixture of neutral cleaner & water into a clean water jet, then spray to all the inner surfaces of the tank & the ice detecting plate. Wipe these surfaces as far as possible with a clean cloth.
  2. Then, spray the surfaces with clean water, wiping with a dry clean cloth. Then drain out the cleaned water in the water tank by pulling out the Water drain pipe of the water tank (indicating "H"). When all cleaned water has been drained out, reinstall the water drain pipe of the water tank.

NOTE: After cleaning the interior parts and reinstalling them in their respective positions, and returning the machine to work, discard the first batch of ice cubes.

5) Ice Making Assembly System Cleaning

Minerals removed from water during the freezing cycle will eventually form a hard, scaly deposit in the water system. Cleaning the system regularly helps remove mineral scale buildup. How often you need to clean the system depends on how hard your water is. With hard water of 4 to 5 grains/liter, you may need to clean the system as often as every 6 months.

  1. Turn off the ice maker. Keep the ice maker connected to the water supply and drainpipe, but shut off the water faucet of the main water supply.
  2. Open the door and scoop out all ice cubes. Either discard them or save them in an ice chest or cooler.
  3. Making the cleaning solution: Please mix Nu-Calgon Nickle Safe Ice Machine Cleaner with water to make the cleaning solution. Use a plastic or stainless steel container with more than 4 liters capacity; mix 300 ml Nu-Calgon Nickle Safe Ice-machine Cleaner with 2.8 liters warm water (about 122-140°F). Then divide them into 2 equal shares in 2 cups. It is better to keep the temperature of each cup of the cleaning solution.

NOTE: Wear rubber gloves and safety goggles (and/or face shield) when handling Ice Machine Cleaner or Sanitizer.

NOTE: The ice machine cleaner contains acids. DO NOT use or mix with any other solvent-based cleaner products. Use rubber gloves to protect hands. Carefully read the material safety instructions on the container of the ice machine cleaner.

6) Cleaning Suggestion

1. DAILY CLEANING

The ice shovel, door, and the water dividing pipe should be cleaned by yourself daily. At the end of every day, rinse the ice shovel and wipe both sides of the door with a clean cloth.

2. SEMI-MONTHLY CLEANING

The ice shovel, ice bin, water tank, the ice-full detecting plate, and the surface of the evaporator are to be cleaned by yourself semi-monthly according to the interior cleaning program.

3. SEMI-ANNUAL CLEANING

All components & surfaces exposed to water or ice cubes, like the ice storage bin, water tank, door, evaporator, water pump, silicone tube, water dividing pipe, etc., should be cleaned using Nu-Calgon Nickle Safe Ice-machine Cleaner every 6 months. They should be cleaned by the serviceman according to the ice-making assembly system cleaning program.

7 - NORMAL TROUBLE SHOOTING

IssuePossible CauseSolution
Ambient temp sensor breakdownDisplay E1 in digital window.Contact service.
Suction tube temp sensorDisplay E2 in digital window.Contact service.
Magnetic control switch cutoff"Full" light will be on when plugging on or just turning on the unit. It will delete the breakdown display if this switch is electric shorted.Contact service.
During the ice-making process, press the "ON/OFF" button for more than 5 secondsThe unit starts to enter the ice harvest program. After the ice harvest program, it continues to enter the ice-making process.N/A
"ADD WATER" indicator is on.No water supply.Check the main water supply pressure or check if the water supply hose is blocked. Adding water pressure or cleaning the hose is necessary.
Floating ball of the water level detecting switch is blocked and cannot be raised up.Clean the water tank and the water level detecting switch.
Water flows out from the water tank.Place the unit on a level position, not on a slope.
Water flows out from the water drain pipe of the water tank.Pull out the pipe and install it back to the slot of the water tank properly.
The unit starts to enter the ice-making process, but no water is flowing in the unit, and the "ADD WATER" indicator flashes.Water supplying hose breakdown, or water flows in very slowly.Check the main water supply pressure or check if the water supply hose is blocked. Adding water pressure or cleaning the hose is necessary.
Water pump is working, but no water flows out from the water dividing pipe.The small holes on the water dividing pipe are blocked.Clean these small holes.
The transparency of the ice cube is not very good.Water quality is bad.Change the water supply, or use a water filter to soften or filter the water.
Ice cube shape is irregular.Water quality is not good or the water tank is very dirty.Clean the water tank and change with new water.
The small holes on the water dividing pipe are somewhat blocked.Clean the water dividing pipe, make sure all nine holes are unclogged.
Ice cube is very thin.Ambient temperature is too high.Move the unit to a low-temperature space, or lengthen the time of each ice-making cycle.
Air circulation around the unit is not good.Make sure there is more than 20CM space between the unit back & front and the obstacle.
Ice cube is too thick.Ambient temperature is too low.Reduce the time of each ice-making cycle.
"FULL" indicator is on.The ice storage bin is full of ice cubes.Take out some ice cubes.
Ice-making cycle is normal, but there are no ice cubes produced.The temperature of the ambient or water in the water tank is too high.Move to a place with a temperature lower than 32 centigrade, and change to low-temperature water.
Refrigerant leakage.Need a technical serviceman to maintain.
Cooling system tube is clogged.Need a technical serviceman to maintain.

8 - Preparing the Ice Maker for Long Storage

If the ice maker will not be used for a long time, or is to be moved to another place, it will be necessary to drain all water from the system.

  1. Allow all ice cubes to be ejected from the evaporator of the ice maker.
  2. Turn off the unit and unplug the power cord.
  3. Shut off the water supply at the main water supply.
  4. Disconnect the water supply hose from the water inlet valve.
  5. Pull out the Water drain pipe of the water tank (indicating "H") to drain all water in the water tank. When all water has been drained out, reinstall the water drain pipe of the water tank.
  6. Then, drain all water from the water drain port located at the unit's back (indicating "7").
  7. Disconnect the water drain pipe from the main drain pipeline or floor drain, and plug the drain cap back in.
  8. Leave the door open to allow for circulation and prevent mold and mildew.
  9. Leave the water supply hose and power cord disconnected until ready to reuse.
  10. Dry the interior and wipe the outside of the unit.
  11. Put a plastic bag over the unit to protect it from dust and dirt.

9 - Product Warranty

  1. The warranty only covers defects in material or workmanship.
  2. The warranty will not apply in cases of:
    • Normal wear and tear.
    • Incorrect use, e.g., overloading of the appliance, use of non-approved accessories.
    • Use of force, damage caused by external influences.
    • Damage caused by non-observance of the user manual, e.g., connection to an unsuitable mains supply or non-compliance with the installation instructions.
    • Partially or completely dismantled appliances.

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