CME506R, 656R, 806R: AutoIQ Cubers Introduction: This product manual contains the information needed for the setup, installation, initial start up, sanitation and maintenance of this ice machine. Keep it for future reference. There are 3 models covered in this manual: • CME506R, a 115 volt, dual evaporator machine • CME656R and CME806R, 230 volt, dual evaporator machines Be certain that the information applies to the model in question.
CME506R, 656R, 806R: AutoIQ Cubers Specifications: These ice machines are designed to be installed indoors, in a controlled environment. They can operate satisfactorily under a wide variety of conditions. However, Do NOT operate the machine where it has not been designed for. Do NOT operate the machine in temperatures it has not been designed for. Do NOT operate the machine above or below the voltage limits for the particular model. Do NOT operate the machine with too little or too much water pressure.
CME506R, 656R, 806R: AutoIQ Cubers Pre-Installation Other Applications: The Electronic Cubers may be placed on certain Ice Dispensers, including Scotsman models: HD356, RS220 and IS220. Check with other dispenser manufacturers for recommendations regarding application. Check the nameplate for electrical requirements. The nameplate is located on the back of the ice machine.
CME506R, 656R, 806R: AutoIQ Cubers Location: A 6 inch minimum clearance on the back, left and right sides is required for the proper operation and service of this machine. Locate the condenser as near as possible to the interior location of the ice maker. Cabinet Panel Removal: Note: The top panel holds the upper edges of the side panels in place. 1.
CME506R, 656R, 806R: AutoIQ Cubers Stacking: Models CME256, CME506, CME656 and CME806 may be stacked together in any combination. Use kit number KSCME6-30. 1. Remove the front, left side and top panels from the bottom machine. Discard the top panel. 2. Remove the front and left side panels from the top machine. 3. Place the upper machine onto the lower machine.
CME506R, 656R, 806R: AutoIQ Cubers Remote Condenser Location Use the following for planning the placement of the Configurations that do NOT meet these condenser relative to the ice machine requirements must receive prior written authorization from Scotsman.
CME506R, 656R, 806R: AutoIQ Cubers For The Installer: Remote Condenser Locate the condenser as near as possible to the interior location of the ice machine. If the excess tubing is to be coiled, spiral it horizontally to avoid excess trapping in the lines. Note: The location of the condenser is relative to 5. Have the roofing contractor seal the holes in the the ice machine is LIMITED by the specification on roof per local codes. the prior page. Meet all applicable building codes.
CME506R, 656R, 806R: AutoIQ Cubers Coupling Instructions The couplings on the ends of the pre-charged line sets are self-sealing when installed properly. Follow these instructions carefully. These steps must be performed by an EPA Certified Type II or higher technician. It is important that ONLY the nut on the pre-charged tube be turned, or the diaphragms will be torn out by the piercing knives and they will be loose in the refrigeration system. Initial Connections 1. Remove the protector caps and plugs.
CME506R, 656R, 806R: AutoIQ Cubers Electrical: All models must be installed with the correct wire size and type per the National Electric Code. Locate the nameplate on the back of the cabinet and find the numbers for Voltage, Phase, Minimum Circuit Ampacity and Maximum Fuse Size. Either fuses or HACR type circuit breakers may be used. The ice maker is designed to operate on its own electrical circuit and must be individually fused. Voltage variation must not exceed the limits listed on page 2.
CME506R, 656R, 806R: AutoIQ Cubers Electrical Connections: KCMR230 Fan Relay Kit (CME656R & CME806R only) When 2 ice machines are connected to 1 remote condenser coil, and the fan motor is powered from the ice machines, a relay kit is required to connect power to the fan motor. A. Before initial start up. Compare the illustration of the KCMR230 terminal strip to the connections at the KCMR230: 1. Attach the relay box of the KCMR230 to a location that is convenient for installation and future service.
CME506R, 656R, 806R: AutoIQ Cubers Plumbing: All models require an adequate potable water supply and a gravity drain. The recommendations for tubing are: Water supply to be 3 8“ OD. Drain to be ¾ “ OD. Drain: Supply: It must be vented at the back of the cabinet. All models have 1 water supply connection, a 3 8“ male flare at the back of the cabinet. The ice storage bin will have a drain out the back or base, depending upon the model.
CME506R, 656R, 806R: AutoIQ Cubers After Utility Connections: 1. Level the cabinet, use the leg levelers on the end of the legs to adjust the cabinet height. 2. Wash out the bin. If desired, the interior of the bin could be sanitized. 3. Locate the ice scoop (if supplied) and have it available for use when needed. 4. Switch on the electrical power. Do not start the machine for 4 hours. Final Check List: 1. Is the unit located indoors in a controlled environment? 2.
CME506R, 656R, 806R: AutoIQ Cubers Component Location and Function: Reservoir: Contains the water charge used for every batch of ice. Water Inlet Valve: Opens to allow water into the reservoir. Water Level Sensor: Controls size of ice cube by measuring how much water is used in a cycle. It consists of a float, stem and electric eye. As the machine is pumping water during ice making, the stem will be seen moving slightly. This is normal.
CME506R, 656R, 806R: AutoIQ Cubers AutoIQ Controller: Indicator Lights: Cycle Definitions: • Bin Full: On when bin is full, goes on and • • • • • • off as ice falls during a harvest cycle. Freeze: On when the unit is in the Freeze cycle, blinks when a freeze cycle is pending. Harvest: On when the unit is in the Harvest cycle. Clean: On when the unit is in the Clean cycle. Off: On when the unit has been switched off, blinks when the machine is preparing to shut off.
CME506R, 656R, 806R: AutoIQ Cubers Initial Start Up: 1. Remove the front, top and side panels. 2. Locate and open the receiver “king” valve. 3. Locate the AutoIQ Controller. 4. Switch on the electrical power. Note that the LED or indicator lights all flashed on briefly. 5. Open the water supply valve. 6. Push and release the Freeze cycle push button (the Freeze indicator light will blink until the compressor starts). The next several operations are automatic.
CME506R, 656R, 806R: AutoIQ Cubers Adjustments: If there was a problem during Initial Start Up: If an error light came on, check the following. 1. Water error. A water error could have been determined by the AutoIQ Controller if the inlet water valve does not fill the reservoir or if the water pump does not start and lower the water level in the reservoir. If either condition is found, the water error light will be switched on and the machine will Shut Down.
CME506R, 656R, 806R: AutoIQ Cubers Adjustments: Thermostatic Expansion Valve: How to Adjust the Amount of Water Purge The TXV is not adjustable, do not attempt to adjust Adjustment is done by use of the control buttons it. on the AutoIQ Controller. Examine the next section to become familiar with the AutoIQ Controller before beginning. 1. If the machine is on, push and hold the OFF button for more than 3 seconds, then release it. This switches the machine Off. 2.
CME506R, 656R, 806R: AutoIQ Cubers How To Operate The AutoIQ Controller The AutoIQ Controller is a microprocessor based device that receives input from several sources and switches various components on and off. Its manual control is thru the use of the Push Button Control Switches 1. Freeze Button. Pushing and releasing this button starts or restarts the machine. The AutoIQ Controller remembers what cycle it was last in and returns to that cycle. 2.
CME506R, 656R, 806R: AutoIQ Cubers How The Electronic Cuber Works This section is intended for the technician. It is not necessary for the normal operation and maintenance of the machine. Refrigeration System: During the Harvest cycle, water again enters the water reservoir, and overfills it to rinse the reservoir of accumulated minerals. It does NOT overflow for a fixed amount of time, but for a time determined by the AutoIQ Controller. by a thermistor located on the compressor discharge line.
CME506R, 656R, 806R: AutoIQ Cubers Technicians Only: Freeze Cycle Operational Sequence Assuming the machine has been operational, the Freeze cycle begins with the end of the Harvest Cycle: • • • • • • • Water level overflowing Water Inlet Valve is OFF Water Pump is ON Liquid Line Valve is OPEN Pump Down Control is CLOSED Compressor is ON Hot Gas Valve is ON (plus 5 seconds after start of Freeze on D series) AutoIQ Controller Operation, Beginning freeze: 6.
CME506R, 656R, 806R: AutoIQ Cubers Technicians Only: Harvest Cycle Operational Sequence Harvest Note: The machine will not restart for 4 minutes The water valve opens and fills the reservoir to the after switching off on Bin Full, unless the Freeze button is pressed. Full level. The water pump shuts off. It will restart in less than Stacked Units: a minute.
CME506R, 656R, 806R: AutoIQ Cubers Sanitation and Cleaning It is the User’s responsibility to keep the ice machine and ice storage bin in a sanitary condition. Without human intervention, sanitation will not be maintained. Ice machines also require occasional cleaning of their water systems with a specifically designed chemical. This chemical dissolves mineral build up that forms during the ice making process.
CME506R, 656R, 806R: AutoIQ Cubers Additional Maintenance To drain reservoir completely: To Sanitize the Ice Storage Bin 2. Push and hold the Off button. 2. Remove baffle. 1. Remove front panel. 1. Remove all ice. 3. Remove screw holding reservoir cover, pull inlet 3. Switch ice machine OFF or wait for it to be in a tube out of reservoir cover, lift cover out of cleaning cycle. machine. 4. Mix a 1 gallon solution of warm (95-115oF.) 4. Unplug water pump connection, remove ground water and sanitizer.
CME506R, 656R, 806R: AutoIQ Cubers Additional Maintenance: Water Distributors It may become necessary to remove the water distributors from the top of the evaporator and clean (de-mineralize) them outside of the ice machine. 1. Remove front panel. 7. Examine the top of the evaporators. The Water Distribution Channels must be free from mineral build up. If build up is evident, scrub the channels with Scotsman Ice Machine Cleaner and a plastic bristle brush. 8. Examine the water distributors.
CME506R, 656R, 806R: AutoIQ Cubers Additional Maintenance: Inlet Water Valve Screen The inlet water valve has a screen on its inlet side to keep debris from flowing into the valve. In some cases, this screen may become clogged or restricted by debris build up. Check for the proper water flow: Flow rate is 1.25 G.P.M. To Check the Inlet Water Valve Screen. 1. Disconnect the electrical power. 2. Shut off the water supply. 3. Remove the front panel. 4.
CME506R, 656R, 806R: AutoIQ Cubers Additional Maintenance: Bin Controls, Condenser The bin controls use a system of infrared emitting and receiving components to sense the build up of ice in the bin. They are located at the bottom of the ice outlet port. They must be free of mineral build up to function properly. To check: 1. Remove front panel. To Clean the Remote Air Cooled Condenser 1. Disconnect and lock out the electrical power. 2.
CME506R, 656R, 806R: AutoIQ Cubers Service Diagnosis: Controller Diagnostic Light Analysis Problem or Symptom Possible Cause Probable Correction Machine is off Bin is full, ice in cube port Use some ice Power is off, check lights.
CME506R, 656R, 806R: AutoIQ Cubers Service Diagnosis Problem or Symptom Possible Cause Probable Correction Unit is off because of a Bin controls did not sense “Harvest Problem” ice falling, unit stayed in harvest until the maximum harvest time ran out. Check bin controls. If the bin full light is on or blinking the bin controls may be dirty. Clean if dirty. The board and bin controls may also need to be checked. Push and release Off button. Push and release Freeze button. Check machine operation.
CME506R, 656R, 806R: AutoIQ Cubers Service Diagnosis: Components Problem or Symptom Possible Cause Probable Correction Fan motor does not turn. Open motor windings, or seized bearings Replace fan motor No power to fan motor KCMR230 relay points may be open. Wires may be disconnected, contactor may not close. Open motor windings, or seized bearings Replace pump No power to pump Check electrical connections. In Freeze, Clean or Harvest the pump should have power to it.
CME506R, 656R, 806R: AutoIQ Cubers Service Diagnosis Problem or Symptom Possible Cause Probable Correction Poor harvest Hot gas valve does not open Check for power to the coil, if there is power, replace the hot gas valve Head pressure control valve does not maintain enough pressure (in freeze) Replace the head pressure control valve Low capacity High discharge pressure, from a Clean the condenser, repair the dirty condenser or faulty fan fan motor motor Extreme hot location Relocate the cabinet
CME506R, 656R, 806R: AutoIQ Cubers PTCR Diagnosis The CME506R, CME656R and CME806R D Series all use a PTCR (Positive Temperature Coefficient Resistor) in place of a conventional start relay and start capacitor. • Power from the contactor connects to the PTCR and to the Run Capacitor. • A wire connects the other terminal of the PTCR to the compressor’s Start winding. • Another wire connects the run capacitor to the start winding.
CME506R, 656R, 806R: AutoIQ Cubers Operational Characteristics: CME506R Cycle Times (Minutes): 0oF. condenser air 70oF. indoor air, 55oF. water 90oF. condenser air 90oF. indoor air, 70oF. water Freeze 21 - 24 25 - 28 Harvest 1.5 - 2.5 1-2 0oF. condenser air 70oF. indoor air, 55oF. water 90oF. condenser air 90oF. indoor air, 70oF.
CME506R, 656R, 806R: AutoIQ Cubers Operational Characteristics: CME656R Cycle Times (minutes): 0oF. condenser air 70oF. indoor air, 55oF. water 90oF. condenser air 90oF. indoor air, 70oF. water Freeze 13 - 15 15 - 17 Harvest 3 1:30 0oF. condenser air 70oF. indoor air, 55oF. water 90oF. condenser air 90oF. indoor air, 70oF.
CME506R, 656R, 806R: AutoIQ Cubers Operational Characteristics: CME806R Cycle Times (minutes): 70oF. condenser air 70oF. indoor air, 50oF. water 90oF. condenser air 90oF. indoor air, 70oF. water Freeze 10 - 12 11:30 - 13 Harvest 1:45 1:30 70oF. condenser air 70oF. indoor air, 50oF. water 90oF. condenser air 90oF. indoor air, 70oF.
CME506R, 656R, 806R: AutoIQ Cubers Removal and Replacement Inlet Water Valve Water Pump 1. Remove the front panel. 1. Disconnect the electrical power. 2. Shut off the water supply. 2. Remove the front panel. 3. Push and release the OFF button. 3. Unplug water pump from its electrical connection. 4. Pull the wire harness off the inlet water valve. 5. Remove screws holding the inlet water valve to the cabinet. 6. Pull the valve away from the cabinet and disconnect the outlet tube. 4.
CME506R, 656R, 806R: AutoIQ Cubers Removal and Replacement Drain Tubing Water Level Sensor/Float Stem 1. Remove the front panel. 1. Disconnect the electrical power. 2. Push and release the Off button. 2. Remove the front panel. 3. Remove bin baffle. 3. Remove 1 plastic bolt and the reservoir cover. 4. Remove 1 plastic bolt and the reservoir cover. 4. Pull float ball from float stem (it is a snap fit). Pull stem out. 5. Unplug water pump, disconnect ground wire. 6. Unplug water level sensor.
CME506R, 656R, 806R: AutoIQ Cubers Removal and Replacement: AutoIQ Controller 1. Disconnect the electrical power. Electric Eyes (Bin Control) 2. Remove the front panel. These must be replaced as a set. 3. Remove mounting screw holding controller to cabinet. 1. Remove front panel. 4. Touch a metal surface to discharge any static electricity. 3. Remove top panel. 4. Remove left and right side panels. 5. Pull controller out slightly and unplug all electrical connections.
CME506R, 656R, 806R: AutoIQ Cubers Removal and Replacement: Water Level Sensor 1. Remove front panel. Water Temperature Sensor 2. Push and hold the OFF button. Release it when the machine stops. Note: This sensor is replaced as a set with the Discharge Temperature Sensor. 3. Trace wire harness from water level sensor to the Controller (#2). Unplug the harness from the controller. 1. Remove front panel. 4. Lift the pump and mounting plate up enough to remove the float from the stem. 3.
CME506R, 656R, 806R: AutoIQ Cubers Removal and Replacement: Transformer and Compressor Starting Components Refrigerant: Single phase compressors use a start relay, start capacitor and run capacitor. All are located in a sheet metal box to the right of the AutoIQ Controller. The compressor contactor is also located in that box. This ice machine uses R-404A or HP62 as a refrigerant. It has several unique characteristics. A. It must use polyol ester refrigerant oil, and that oil is very water absorbent.
CME506R, 656R, 806R: AutoIQ Cubers Access Valves: To use the access valves: Liquid Charging 1. Be sure that the valve is closed. Remove the stem cap and insert a 3/16" allen wrench. Check that the valve is closed. Because R-404A is a near-azeotrope, only liquid refrigerant can be used to recharge the refrigeration system. To do that may take some special techniques: 2. Remove the port cap and attach refrigerant manifold hoses. 3. Open the valve and purge the hoses. 2.
Before Calling for Service CME506R, 656R, 806R: AutoIQ Cubers Check the following: 1. Has the water supply to the ice machine or building been shut off? If it has, the ice machine will automatically restart within 25 minutes after water begins to flow to it. 2. Has power been shut off to the ice machine? If yes, the ice machine will automatically restart when power is restored. 3.
11. Go to the next step to sanitize the machine or go to step In Place Cleaning of the Ice Machine Water System: 19 to finish the cleaning process. 1. Remove all ice from the bin. Either save it in a sanitary container or discard it. If the cleaning was planned, the ice 12. Mix 2 gallons of Sanitizer solution. Follow local codes for machine could be switched off the night before to minimize waste.Sanitizer. 2. Remove the front panel. Note: A possible sanitizing solution may be made by mixing 3.
