Page 1: Table Of Contents
PTCR Diagnosis , , , , , , , , , , , , PAGE 33 Operational Characteristics: CME1056R , , , , , , , , , , , , , , , , , , , , , PAGE 34...
Page 2: Specifications
Water Temperature Water Pressure 20 psi Voltage (60 Hz) Voltage (50 Hz) Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and designs are subject to change without notice. Scotsman assumes no liability or responsibility of...
Page 3: Condenser And Ice Machine Layouts
4.75 in 12.1 cm 10.75 in 27.3 cm 20.12 in 51.1 cm 22.25 in 56.5 cm May 2000 Page 3 CME1056R 29.50 in 74.9 cm LIQUID LINE 3/8" MALE CPLG. AIR FLOW 27.56 in .65 in 70.0 cm 1.7 cm 29.19 in...
Page 4: Pre-Installation
Pre-Installation Other Applications: Check sales literature for additional information. Note: Slope-front bins must have an internal baffle. Scotsman HTB555 and BH550 have the required baffle. Baffle must be approximately in the position shown in the diagram below. 12.0" Side View Electrical: Check the nameplate for electrical requirements.
Page 5: Location & Assembly
Level the top edge of the bin front to back and left to right. If the ice machine has not been unpacked, do so now. Remove the carton from the skid. Remove shipping straps.
Page 6: Stacking
6. Locate gasket material in kit. Place a layer of gasket material on the top edge of the plastic freezing compartment. 7. Place the top ice machine onto the bottom one. Secure together with hardware from the top machine. Remove front and left side panels.
Page 7: Stacking
17. Pull back excess cap tube and coil up in the machine. 18. Connect wires from harness to thermostat terminals. Both Machines: 19. Return all panels and covers to their normal positions. 20. Complete the balance of the installation. May 2000 Page 7 CME1056R...
Page 8: Bin Control: Installation
CME1056R 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 front panel and any baffle in the bin. 1. Locate bin thermostat bulb.
Page 9: For The Installer: Remote Condenser
Note: If using any other condenser besides the ERC311, its use must be approved by Scotsman, and a head pressure control valve must be connected to the condenser coil. The head pressure valve kit number is:...
Page 10: Remote Condenser Location
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 •...
Page 11: Coupling Instructions
“ liquid line goes to the ice maker fitting marked “liquid line”. Note: The system charge is contained in the receiver tank of the ice machine. Only “holding" charges are present in the “pre-charged" tubing or the condenser. Final Connections: 4a.
Page 12: Head Pressure Control Add-On Kit
CME1056R Head Pressure Control Add-On Kit Kit: RCKCME6GX Required when a CME1056R is to be connected to a Remote Condenser that is not equipped with a Head Pressure Control Valve Required Tools: Screwdriver; Drill; 5/32" drill bit; Two Adjustable Wrenches; POE Oil 1.
Page 13: Electrical
Note: An external junction box may be mounted to the back of the machine. Holes are pre-drilled for a open back box such as Scotsman part number 12-2374-01. 3. Install wires and strain reliefs per code. Note: Condenser fan motor wires are tagged.
Page 14: Plumbing
" The ice storage bin will have a drain out the back or base, depending upon the model. The drain for the ice machine and the ice storage " bin must be SEPARATE or the ice machine’s drain water may run into the bin and MELT THE ICE.
Page 15: After Utility Connections
___ 13. Have any water filter cartridges been replaced? ___ 14. Check all refrigerant lines and conduit lines, for vibration or rubbing and possible failure. Adjust as needed. ___ 15. After 4 hours of electrical power, proceed to Initial Start Up. May 2000 Page 15 CME1056R...
Page 16: Component Location And Function
CME1056R Component Location and Function Reservoir: Contains the water used to make ice. Water Inlet Valve: Opens to allow water into the reservoir. Freezing Compartment: Location of the evaporators. Ice forms on the evaporators, and is released when warmed up during the harvest cycle.
Page 17: Autoiq Controller
Clean: Water valve opens to fill the reservoir. The Water pump starts. The Clean indicator light is switched ON. A manually initiated rinse cycle flushes the system. May 2000 Page 17 CME1056R HI VOLTAGE IN/OUT WATER PUMP PUSH BUTTON CONTROL SWITCHES INDICATOR LIGHTS:...
Page 18: Initial Start Up
10. The reservoir refills at the beginning of Freeze. 11. Fill out the Customer Evaluation and Warranty Registration. Send it to Scotsman. 12. Return all panels to their normal positions. 13. Inform the user of the location and telephone number of the local service company.
Page 19: Adjustments
Off button for more than 3 seconds, then releasing it. The unit will then be Off. From there the machine may be placed in a freeze cycle by pushing and releasing the Freeze button. May 2000 Page 19 CME1056R...
Page 20: How To Operate The Autoiq Controller
After the ice machine cleaner has circulated for about 10 minutes a second push of this button will switch on the rinsing system to flush out the dissolved scale and ice machine cleaner.
Page 21: How The Electronic Cuber Works
Head Pressure The Check Valves also prevent liquid migration Control during the Off cycle. Valve Thermo Exp. Valve Distributor Check Valve Suction Heat Exchange Accumulator Hot Gas Valve Refrigeration Schematic May 2000 Page 21 CME1056R Evaporator Evaporator Evaporator...
Page 22: How The Electronic Cuber Works
After the purge valve has closed, the inlet water valve opens and water flows into the ice machine. The water valve will NOT be open the complete length of the harvest cycle.
Page 23: Technicians Only: Freeze Cycle Sequence
If another problem occurs in the next cycle, the machine will attempt one more restart. If another problem occurs in the next cycle, the machine will shut off and must be manually reset. May 2000 Page 23 CME1056R...
Page 24: Technicians Only: Harvest Cycle Sequence & Other Notes
CME1056R Technicians Only: Harvest Cycle Sequence & Other Notes Harvest The Purge Valve will be open for 40 seconds. The water pump shuts off, it will restart before 40 seconds, the restart time is based on the Purge Level Setting.
Page 25: Sanitation And Cleaning
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.
Page 26: Additional Maintenance
Soak or scrub the distributors in or with a solution of Scotsman Ice Machine Cleaner and warm potable water. 8. Return the water distributors to their normal installed position.
Page 27: Additional Maintenance: Inlet Water Valve Screen
To Sanitize the Ice Storage Bin 1. Remove all ice. 2. Remove baffle. 3. Switch ice machine OFF or wait for it to be in a cleaning cycle. 4. Mix a 1 gallon solution of warm (95-115 o F.) water and sanitizer. Follow local codes for sanitizer.
Page 28: Additional Maintenance: Ice Sensors, Condenser
7. Examine the bottom of the brackets, there are two sensors in each bracket, check that they are clear of mineral build up. They may be wiped clean with ice machine cleaner to assist in removal of the build up. Note: Do NOT use abrasive materials or cleaner on the ice sensor lenses.
Page 29: Service Diagnosis: Diagnostic Light Analysis
Push and release Off button. Push and release Freeze button. Check operation. Push cube size float down and check operation. Check for cause of long harvest cycle** Replace the temperature sensor set (water and discharge). May 2000 Page 29 CME1056R...
Page 30: Service Diagnosis
CME1056R Service Diagnosis Problem or Symptom Possible Cause Unit is off because of a Ice sensors did not sense “Harvest Problem” ice falling, unit stayed in harvest until the maximum harvest time ran out. Bin controls or AutoIQ Controller may have failed.
Page 31: Service Diagnosis: Components
Replace valve Replace valve Check wire connections, if ok, replace AutoIQ Controller Check water filters and/or inlet screen. Replace valve Push and release Freeze button. Replace contactor Check and replace Check and replace compressor Replace compressor May 2000 Page 31 CME1056R...
Page 32: Service Diagnosis
CME1056R Service Diagnosis Problem or Symptom Poor Harvest Low capacity Compressor cycles on and off Possible Cause Scale in water system. Water or Air Temperatures too cold Low system charge Bypass solenoid does not open Check valve leaks back Hot gas valve does not open...
Page 33: Ptcr Diagnosis
If not, wait 5 minutes for it to cool off. 3. Disconnect both leads to the PTCR and measure its resistance with an ohmmeter. If the PTCR reads less than 22 ohms or more than 40 ohms, replace it. May 2000 Page 33 CME1056R...
Page 34: Operational Characteristics: Cme1056R
CME1056R Operational Characteristics: CME1056R Cycle Times: Freeze Harvest System Pressures (PSIG) (minutes): Suction: End of Freeze Suction: Peak in Harvest Discharge: 5 minutes into Freeze Number of Evaporators: • Refrigerant Charge • 208 ounces of R-404A Typical Compressor Amps, single phase •...
Page 35: Removal And Replacement
Water Pump 7. Locate water level sensor mounting tabs, compress together to release sensor from bracket. 8. Remove water pump brackets from pump. 9. Reverse to replace. 10. Replace front panel. 11. Re-connect electrical power. May 2000 Page 35 CME1056R...
Page 36: Removal And Replacement
CME1056R Removal and Replacement Purge Valve 1. Disconnect electrical power. 2. Remove front panel. 3. Unplug wire harness from purge valve coil. 4. Locate and remove the two screws securing the purge valve to the machine. Purge Valve 5. Pull the inlet and outlet hoses off the purge valve and remove it from the machine.
Page 37: Removal And Replacement: Autoiq Controller
4. 7. Remove sensors from machine. Note: Some cable ties may have to be cut and side panels removed. 8. Reverse to reassemble. Be sure that the color codes of the connecting wires match. May 2000 Page 37 CME1056R...
Page 38: Removal And Replacement: Water Level Sensor
CME1056R Removal and Replacement: Water Level Sensor 1. Remove front panel. 2. Push and hold the OFF button. Release it when the machine stops. 3. Trace wire harness from water level sensor to the Controller (#2). Unplug the harness from the controller.
Page 39: Removal And Replacement
TXV operation, hot gas valve leak thru or inlet water valve leak thru. The metal bracket in front of the compressor must be removed to access the compressor. May 2000 Page 39 CME1056R...
Page 40: Refrigerant
CME1056R 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.
Page 41: Before Calling For Service
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 automatically restart when power is restored.

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