Scotsman Ice CME1656R manual

Introductio n This product ma nual contains the inform ation needed for the setup, inst allation, initia l start up, sanitation and mainte nance of this ice machine. Keep it for future reference. There are 2 mo dels covered in this manual: • CME1356R, (5 evaporators) • CME1656R, (6 evaporators) Be certain tha t the informatio n applies to the m[...]

Specifications Both of 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 in temperatures it has not been designed for . Do NOT operate the machine above or below the voltage limits for the particular model. Do[...]

CME1356R and CME1656R May 2001 Page 3 Condenser and Ice Machine Layouts .88 DIA. ELECTRICAL INLET .65 in 1.7 cm 27.56 in 70.0 cm 2.84 in 7.2 cm AIR FLOW .562 DIA. MOUNTING HOLES (4) CONDENSER FINS 23.54 in 59.7 cm LIQUID LINE 3/8" MALE CPLG. DISCHARGE LINE 1/2" MALE CPLG. 14.56 in 36.9 cm 7.60 in 19.3 cm 29.19 in 74.1 cm 24.71 in 62.7 cm [...]

Pre-Installation Other Applications: Check sales literature for additional information. Electrical: Check the nameplate for electrical requirements. The nameplate is located on the back of the ice machine. If the information on the nameplate is different from other published information, go by the nameplate data. While the model and serial number a[...]

Location & Assembly Locate the ice machine indoors. A 6 inch minimum clearance on the back and left sides is required for the proper operation and service of this machine. Locate the remote condenser as close as possible to the ice machine. See page 1 1 for details. Unpacking and Assembly: Begin with unpacking the ice storage bin. Remove the ca[...]

CME1356R and CME1656R May 2001 Page 6 Bin Control: Installation The bin control is a thermostat. It must be field installed after the ice machine has been placed on the bin. Before starting, remove the left front panel and any baffle in the bin. 1. Locate bin thermostat bulb. 2. Route bulb thru routing tube (located between the compressor and the r[...]

CME1356R and CME1656R May 2001 Page 7 Bin Control Attach Thermostat Bulb to Bracket Bin Thermostat Bracket Attach Bracket to Bottom of Ice Machine Minimize Excess Tube in Bin Bin Thermostat Capillary Tube Thermostat and Bracket Three-Pronged Knob Mount Bulb Tip Here Mount Thermostat Capillary Tube Here[...]

Stacking - Kit KSCME6-LG-B Only like models may be stacked. Begin after the bottom unit has been placed on the ice storage bin and secured. Stacking requires heavy duty leg kits. Casters are NOT recommended. Note: Instructions are for either model. Bottom Machine: 1. Remove front panel, left side panel, and top panel. 2. Remove & discard top co[...]

CME1356R and CME1656R May 2001 Page 9 Front-to-Back Support Bracket Gasket for Metal Edges of Bottom Unit Gasket on Plastic Walls of Lower Unit Shield Hanger Bracket Stacking Mounting Straps and Hardware Shield[...]

For The Installer: Remote Condenser Locate the condenser as near as possible to the interior location of the ice maker . Note: The location of the condenser relative to the ice machine is LIMITED by the specification on the following page. Select the best available location, one that protects the condenser from extremes of dust, grease and sun. Mee[...]

Remote Condenser Location Use the following for planning the placement of the condenser relative to the ice machine Location Limits - condenser location must not exceed ANY of the following limits: • Maximum rise from the ice machine to the condenser is 35 physical feet • Maximum drop from the ice machine to the condenser is 15 physical feet ?[...]

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 EP A Certified T ype II or higher technician. Initial Connections 1. Remove the protector caps and plugs. Wipe the seats and threaded surfaces with a clean [...]

CME1356R and CME1656R May 2001 Page 13 Head Pressure Control Add-On Kit Kit: RCKCME6GX Required when a CME1656R or CME1356R is to be connected to a Remote Condenser that is not equipped with a Head Pressure Control V alve Required T ools: Screwdriver; Drill; 5/32" drill bit; T wo Adjustable Wrenches; POE Oil 1. Remove cover from metal box. 2. [...]

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 V oltage, 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 [...]

Plumbing CME1356R and CME1656R May 2001 Page 15 Ice Machine Drain Bin Drain Floor Drain Field Supplied Water Filter Potable Water Source 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 3 4 " OD. Note: When replacing a prior ice mach[...]

After Utility Connections 1. W ash out the bin. If desired, the interior of the bin could be sanitized. 2. Locate the ice scoop (if supplied) and have it available for use when needed. 3. Switch on the electrical power . Do not start the machine for 4 hours. 4. Go thru the final check list (below). Final Check List: ___ 1. Is the unit located indoo[...]

Component Location and Function Reservoir: Contains the water used to make ice. W ater Inlet V alve: Opens to allow water into the reservoir . Evaporators/Freezing Compartment: Location of the evaporators. Ice forms on the evaporators, and is released when warmed up during the harvest cycle. The freezing compartment is fully insulated for maximum e[...]

AutoIQ Controller Indicator Lights: · 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 bee[...]

Initial Start Up 1. Remove the left front panel. 2. Locate and open the liquid line valve. 3. Double check quick-connect couplings for leaks. 4. Locate the AutoIQ Controller . 5. Connect electrical power . All lights will blink on and off together then, for blue controllers, the two red lights will blink while the Freeze light is on. After 20 secon[...]

Adjustments If there was a problem during Initial Start Up: If a diagnostic light came on, check the following. 1. W ater . 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 fou[...]

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 Control[...]

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: The refrigeration system is similar to that of most commercial cube ice machines. Heat is removed from the water and discharged out the condenser during the freeze cycle. As l[...]

How The Electronic Cuber Works W ater System: Freeze: The water pump forces water to the top of the evaporators. The un-frozen water falls thru the cube deflectors and back into the reservoir . As water is turned into ice, the water level in the reservoir falls, and the machine will re-fill the reservoir once during the freeze cycle. At the point w[...]

Technicians Only: Freeze Cycle Sequence Assuming the machine has been operational, the Freeze cycle begins with the end of the Harvest Cycle: · Water Inlet Valve is Closed · Water Pump is ON · Compressor is ON · Hot Gas Valve is Open AutoIQ Controller Operation, Beginning freeze: 1. Switches on Freeze indicator light and shuts off the hot gas v[...]

Technicians Only: Harvest Cycle Sequence & Other Notes Harvest The Purge V alve will be open for 74 seconds. The water pump shuts off, it will restart before 74 seconds, the restart time is based on the Purge Level Setting. The pump restarts and pumps water out of the reservoir until the purge valve closes. The inlet water valve will stay on fo[...]

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 [...]

Additional Maintenance T o Properly Place the Evaporator Covers Removal: 1. Remove right front panel. 2. Push up on evaporator cover and swing out the base. 3. Use the finger holes to pull the lower inside cover down and swing it out from the machine. 4. Pull upper inside cover out from behind the pump hose. Note: ALL COVERS MUST BE PROPERL Y IN PL[...]

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 panels. 2. Push and release the OFF button. 3. Remove the evaporator covers. 4. Pull the tab at the front of the evaporators forward and lift th[...]

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 2.7 G.P .M. 1. Remove front panel. 2. Obtain a 16 ounce cup and a watch. 3. Pu[...]

Additional Maintenance: Ice Sensors, Condenser The ice sensors 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 . T o check: 1. Remove front panels. 2. Push and release the harvest butt[...]

Service Diagnosis: Diagnostic Light Analysis CME1356R and CME1656R May 2001 Page 31 Problem or Symptom Possible Cause Probable Correction Machine is off Bin is full Use some ice Bin thermostat is closed Check thermostat Power is off, check Lights. If all Lights are out, check power supply , restore power if off T ransformer is open If all Lights ar[...]

Service Diagnosis CME1356R and CME1656R May 2001 Page 32 Problem or Symptom Possible Cause Probable Correction Unit is off because of a “Harvest Problem” Bin controls did not sense 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[...]

Service Diagnosis: Components CME1356R and CME1656R May 2001 Page 33 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 Contactor may not close. Pump motor does not turn Open motor windings, or seized bearings Replace pump No power to pump Ch[...]

CME1356R and CME1656R May 2001 Page 34 Service Diagnosis Problem or Symptom Possible Cause Probable Correction Poor Harvest Scale in water system. Clean water system. W ater or Air T emperatures too cold Check temps. Unit cannot operate with water and air temps below stated limits. Low system charge Recover and weigh charge. Bypass solenoid does no[...]

CME1356R and CME1656R March 2003 Page 35 PTCR The “D” series cubers use a PTCR (Positive T emperature 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. Anoth[...]

Operational Characteristics: CME1356R Cycle T imes (Minutes): System Pressures (PSIG) Number of Evaporators: · 5 Refrigerant Charge · 288 ounces of R-404A Typical Compressor Amps, single phase · freeze 14 - 15 · harvest 17 - 18 Typical Compressor Amps, three phase · freeze 8 - 9 · harvest 10 - 11 Typical Harvest Ice Weight · 16.0 lb Superhea[...]

Operational Characteristics: CME1656R Cycle T imes (minutes): System Pressures (PSIG): Number of Evaporators: · 6 Refrigerant Charge · 288 ounces of R-404A Typical Compressor Amps, single phase · freeze 15 - 16 · harvest 22 - 23 Typical Compressor Amps, three phase · freeze 9 - 10 · harvest 13 - 14 Typical Harvest Ice Weight · 19.2 lb. Super[...]

Removal and Replacement Inlet W ater V alve 1. Remove the left front panel. 2. Shut off the water supply . 3. Push and release the OFF button. 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. 7. Unscrew the water[...]

Removal and Replacement Purge V alve 1. Disconnect electrical power . 2. Remove left front panel. 3. Unplug wire harness from purge valve coil. 4. Locate and remove the two screws securing the purge valve to the machine. 5. Pull the inlet and outlet hoses off the purge valve and remove it from the machine. 6. Reverse to reassemble. There are no int[...]

Removal and Replacement: AutoIQ Controller 1. Disconnect the electrical power . 2. Remove the front panel. 3. Remove mounting screw holding controller to cabinet. 4. T ouch a metal surface to discharge any static electricity . 5. Pull controller out slightly and unplug all electrical connections. Note: Do NOT touch the back of the controller . 6. C[...]

Removal and Replacement: Water Level Sensor 1. Remove front panel. 2. Push and hold the OFF button. Release it when the machine stops. 3. T race wire harness from water level sensor to the AutoIQ Controller (#2). Unplug the harness from the controller . 4. Lift the pump and mounting plate up enough to remove the float from the stem. 5. Remove two s[...]

Removal and Replacement T ransformer and Compressor Starting Components 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. 1. Disconnect electrical power . 2. Remove front panel. 3. Remove [...]

Refrigerant 1. This ice machine uses R-404A or HP62 as a refrigerant. It has several unique characteristics. A. It is a near-azeotrope, and must be liquid charged. B. It must use polyol ester refrigerant oil, and that oil is very water absorbent. The system must not be open for more than 15 minutes. C. An electronic leak detector capable of locatin[...]

Liquid Charging Because R-404A is a near-azeotrope, only liquid refrigerant can be used to recharge the refrigeration system. T o do that may take some special techniques: 1. Use an electronic scale to measure the charge. 2. Place a drum or cylinder of R-404A on the scale, valve side up (most R-404A disposable cylinders have an internal dip tube an[...]

CME1356R and CME1656R March 2003 Page 45 Before Calling for Service Check the following: 1. Has the water supply to the ice machine or building been shut off? If yes, 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 automaticall[...]

Subject: New Ice Sensors in CME1356, CME1656 and CME2006. New Ice Sensors, new Water Level Sensors and new Controllers in CME306 and CME456. Ice Sensors : Scotsman has begun production of ice machines equipped with a new style of ice sensor . The new sensor is interchangeable with the prior sensors, which are still in use on other Scotsman modular [...]

Photo-Eye Module Separated from Holder Route Wire Under Clip, Push Module Into Place Push to Release Photo-Eye Module The new ice sensor ’s have a photo-eye module that can be separated from the holder . Once separated, the lenses of the photo-eyes can easily be cleaned with a soft cloth or cotton swab. Ice machine cleaner may be used if needed. [...]