CME1856W 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. This machine incorporates advanced technology, including a scroll compressor. This manual is organized in the same way as the expected use of the machine, it begins with specifications, goes thru unpacking and setup, shows where everything is; continues with initial start up, then describes how it works. After that is the sanitation section, followed by service diagnosis and repair. Be certain that the information applies to the model All Scotsman CM3 models, like this one, feature in question. If no model is listed, the information Scotsman's AutoIQTM control system and applies to all models. ReliaCleanTM water system cleaning process. TABLE OF CONTENTS Specifications · · · · · · · · · · · · PAGE 2 Ice Machine Layouts · · · · · · · · · PAGE 3 Pre-Installation · · · · · · · · · · · · PAGE 4 Location & Assembly · · · · · · · · PAGE 5 Additional Maintenance · · · · · · · PAGE 25 Additional Maintenance: Water Distributors · · · · · · · · · · · · · · · · · · · · PAGE 26 Additional Maintenance: Inlet Water Valve Screen · · · · · · · · · · · · · · · · · · · · PAGE 27 Additional Maintenance: Ice Sensors, Condenser · · · · · · · · · · · · · · · · · · · · PAGE 28 Service Diagnosis: Diagnostic Light Analysis · · · · · · · · · · · · · · · · · · · · PAGE 29 Service Diagnosis · · · · · · · · · · PAGE 30 Service Diagnosis: Components · · · PAGE 31 Service Diagnosis · · · · · · · · · · PAGE 32 Operational Characteristics: CME1856W · · · · · · · · · · · · · · · · · · · · PAGE 33 Suction Pressure · · · · · · · · · · PAGE 34 Bin Control: Installation · · · · · · · PAGE 6 Bin Control · · · · · · · · · · · · · · PAGE 7 For The Installer: · · · · · · · · · · PAGE 8 Electrical · · · · · · · · · · · · · · · PAGE 9 Plumbing · · · · · · · · · · · · · · · PAGE 10 Stacking Kit - KSCME6-LG-B · · · · PAGE 11 Stacking · · · · · · · · · · · · · · · PAGE 12 After Utility Connections · · · · · · · PAGE 13 Component Location and Function · PAGE 14 System Controller · · · · · · · · · · PAGE 15 Initial Start Up · · · · · · · · · · · · PAGE 16 Adjustments · · · · · · · · · · · · · PAGE 17 How To Operate The Controller · · · PAGE 18 How The Electronic Cuber Works · · PAGE 19 How The Electronic Cuber Works · · PAGE 20 Startup: Three Phase Compressor · PAGE 21 Technicians Only: Freeze Cycle Sequence · · · · · · · · · · · · · · · · · · · · PAGE 22 Technicians Only: Harvest Cycle Sequence & Other Notes · · · · · · · · · · · · · PAGE 23 Sanitation and Cleaning · · · · · · · PAGE 24 Printed on recycled paper. Removal and Replacement · · · · · PAGE 35 Removal and Replacement · · · · · PAGE 36 Controller Features & Last Error Recall · · · · · · · · · · · · · · · · · · · · PAGE 37 Removal and Replacement: System Controller · · · · · · · · · · · · · · · · · · · · PAGE 38 Removal and Replacement: · · · · PAGE 39 Removal and Replacement · · · · · PAGE 40 Refrigerant · · · · · · · · · · · · · · PAGE 41 Liquid Charging · · · · · · · · · · · PAGE 42 Before Calling for Service · · · · · · PAGE 43 Index · · · · · · · · · · · · · · · · · PAGE 44 Service parts list & wiring diagrams located in the middle of this manual. November 2001 Page 1 CME1856W Specifications This ice machine is designed to be installed indoors, in a controlled environment. While it can operate satisfactorily under a wide variety of conditions, 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. Bins: All models will fit a standard, 48" wide or wider open top Scotsman Ice Storage Bin. Some examples are: Operational Limits Minimum Air Temperature Potable Water Supply Temperature Condenser Water Inlet Temperature Water Pressure Voltage (60 Hz) 50oF. 40oF. 40 F. 20 psi 197 o Maximum 100oF. 100oF. 100 F. 80 psi 253 o · · · · · BH900 BH1370 BH1356 BH1650 BH1000 (requires kit KBT21) In addition, there may be other bins that can be used, check Scotsman's sales literature for application information. Note: Slope-front bins must have an internal baffle. Scotsman BH900 and BH1000 have the required baffle. Baffle must be approximately in the position shown in the diagram below. Baffle 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 any kind for products manufactured by Scotsman that have been altered in any way, including the use of any parts and/or other components not specifically approved by Scotsman. Side View BASIC INFORMATION Model Number Dimensions WxDxH (w/o bin) CME1856WS-32 CME1856WS-3 48 ½ " x 24" x 28" same 208-230/60/1 208-230/60/3 Basic Electrical (volts/Hz/phase) Condenser Water Supply Refrigerant Charge R-404A Minimum Circuit Ampacity Maximum Fuse Size GPH 107* GPH 107* 60 60 30 20 *Condenser only @90/70 If the numbers on the nameplate are different than the above, use the nameplate's information. The stacking kit required to place two like model cubers together is: KSCME6-LG-B. November 2001 Page 2 4.0" 40 30 12.0" CME1856W Ice Machine Layouts November 2001 Page 3 CME1856W 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 are on the nameplate, a serial number plate is located at the front of the machine, behind the left front panel and to the right of the purge valve. Water: There is no such thing as pure water. All water contains some impurities. There are two ways water carries the impurities: suspended and dissolved. Suspended solids can be filtered out. Dissolved solids must be diluted or treated. Water filters are recommended to remove suspended solids. Some filters have treatment in them for suspended solids. Check with a water treatment service for a recommendation. Cube Ice machines use more water than what ends up in the bin as ice. While most water is used during ice making, a portion is designed to "rinse" out the water system to keep hard water scale from clogging up the machine. That water rinse, combined with water filters, prolongs the times between needed water system cleaning. Service Technicians: All models covered here come set from the factory with at a "Standard" water rinse. Standard water rinse is designed to be compatible with typical water conditions. The ReliaCleanTM water system provides an adjustment method so the amount of water rinsed out of the machine per cycle can be changed. If the prior ice machine worked acceptably well with the local water conditions, leave the machine at the factory setting. If severe water conditions are present, and water filters do not solve the problem acceptably, adjust the machine to use more water. If water conditions are excellent, adjust the machine to use less water. See the Adjustments section. Note: Water use adjustments are customer convenience adjustments; they are NOT factory defects and are NOT covered by warranty. Nameplate Serial Number Plate November 2001 Page 4 CME1856W Location & Assembly Locate the ice machine indoors. A 6 inch minimum Cabinet Panel Removal: clearance on the back and left sides is required for 1. Remove the front panel by removing the two the proper operation and service of this machine. screws connecting the front panel to the machine. Unpacking and Assembly: 2. Lift up at the front edge and push the top panel Begin with unpacking the ice storage bin. Remove back until it releases from the tabs connecting it to the carton, and using part of the carton as a the back panel. cushion, tip the bin on its back to remove the skid and attach the legs or casters. Note: Stacked applications may not use casters. Return the bin to an upright position. Check the bin top gasket for gaps and tears, fill any in with food grade sealant prior to placing the ice machine on the bin. Note: If recycling a prior bin, be sure that the bin top gasket is in good condition or seal the ice machine to the bin with food grade sealant. 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. Remove the front and left panels. Remove the compressor shipping brackets and all packaging materials. 3. Remove two screws at the front of each side panel, and pull them forward until they release After all packing materials have been removed from the ice machine, lift or hoist the machine onto from the tabs connecting them to the back panel. the bin. Align the sides and back of the machine Evaporator Cover: with the sides and back of the bin. Secure the ice machine to the bin with the two metal straps and 4 bolts provided. To Remove Evaporator Cover: Push Up and Tilt Out November 2003 Page 5 CME1856W Bin Control: Installation The bin control is a thermostat. It must be field Note: If the machine is located at an altitude higher installed after the ice machine has been placed on than 2,000 ft., adjust the thermostat by removing the bin. the plastic cover and rotating the adjustment screw per the table. Before starting, remove the left front panel and any baffle in the bin. Bin Thermostat Altitude Correction Table 1. Locate bin thermostat bulb. 2. Route bulb thru routing tube (located between the compressor and the reservoir). 3. Locate bin thermostat bracket. 4. Carefully position the thermostat bulb on the bracket (see the diagram on the next page). 5. Fasten the bracket to the bottom of the ice machine with the two 3-pronged knobs supplied with the unit. 6. Pull back into the ice machine any excess capillary tubing. 7. Return the baffle to the bin and continue with the installation. CW Turns of Range Screw (under plastic cover) Feet 2000 4000 6000 Turns 55o 160o 250o Feet 8000 9000 10000 Turns 340o 385o 405o Use This Table to Adjust Thermostat Bin Thermostat Bulb Bin Thermostat Body Thermostat Bulb Routing Tube Route Bin Thermostat Bulb Into Bin November 2001 Page 6 CME1856W Bin Control Bin Thermostat Bracket Bin Thermostat Capillary Tube Mount Bulb Here Attach Thermostat Bulb to Bracket Minimize Excess Tube in Bin Three-Pronged Knob Thermostat and Bracket Attach Bracket to Bottom of Ice Machine November 2001 Page 7 CME1856W For The Installer: Cooling Tower Applications: This unit requires no special modifications for use on a cooling tower. However, the sizing of the cooling tower requires the heat of rejection and the pressure drop across the ice machine's water cooling circuit (water regulating valve and condenser). ·Heat of Rejection: 27,400 BTUH - Peak ·Pressure Drop: 7 psi ·Maximum water temp into condenser: 110oF. ·Peak GPM at 110oF: 9 - 10 ·GPH at 110/100: 372 ·GPH at 90/70: 107 ·GPH at 70/50: 59 October 2001 Page 8 CME1856W 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. Electrical connections are made in the junction box in the back of the cabinet. 1. Remove the junction box cover. 2. Knock out one hole for a field supplied strain relief. 3. Install wires and strain relief per code. 4. Connect to wires and secure ground wire to ground screw inside junction box. All external wiring should conform to the national, state and local electrical code requirements. Usually an electrical permit and the services of a licensed electrician will be required. November 2001 Page 9 CME1856W Plumbing All models require an adequate potable water supply, a condenser water supply and a gravity drain. The recommendations for tubing are: All Drain Tubing Material must be RIGID. Flexible tubing will eventually kink and cause a restricted dr ...