CME855A & CME1000A INTRODUCTION This manual is intended as a reference for the installation of a Scotsman ice maker models CME855 and the CME1000. TABLE OF CONTENTS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2 UTILITY CONNECTION LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3 FOR THE INSTALLER: Environmental Limitations . . . . . . . . . . . . . . . . . . . . . . . . page 4 FOR THE INSTALLER: Machine & Bin Assembly . . . . . . . . . . . . . . . . . . . . . . . . . page 5 STACKING TWO UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6 FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7 FOR THE ELECTRICIAN: Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . page 8 FOR THE INSTALLER: Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9 INITIAL START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10 ADJUSTMENT OF THE TIMER & SWITCH ASSEMBLY . . . . . . . . . . . . . . . . . . . . . page 12 REFRIGERATION SYSTEM OPERATION WATER SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 17 COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15 SERVICE SPECIFICATIONS: CME855A SERVICE SPECIFICATIONS: CME1000A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18 CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 19 SERVICE DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21 REMOVAL AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23 REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 25 LIQUID CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 26 A Service Parts List and the Wiring Diagrams are located in the center of this manual, printed on yellow paper. October, 1994 Page 1 CME855A & CME1000A SPECIFICATIONS Always refer to the nameplate, located on the back of the cabinet, for the: · model number, · serial number, · basic electrical requirements, · minimum circuit ampacity, · maximum fuse size, · and refrigerant charge. A serial number plate with the model number, serial number and refrigerant charge is located behind the front panel, near the control box. The unit comes from the factory with the correct refrigerant charge. The refrigerant charge information is for recharging, should that be necessary. All utility connections are made at the back of the ice maker. Before beginning installation, be sure that all of the components necessary for complete assembly of the ice system are available, and are the correct components with regard to model, voltage, and finish. The CME855 or CME1000 will fit Scotsman bin BH800 without needing a bin top. Other bins will require a bin top. Serial Number Plate Behind Front Panel Air In Air Out Model Number Dimensions W" x D" x H" 42 x 24 x 27 42 x 24 x 27 42 x 24 x 27 Basic Electrical Refrigerant Min. Type Circ. Amps 208-230/60/1 230/50/1 208-230/60/1 R-404A R-404A R-404A 15.9 19.9 Max. Refrigerant Fuse** Size Charge* 20 20 36 ounces 36 ounces 42 ounces CME855AE-32A CME855AE-6A CME1000AE-32A CME1000AE-3A 42 x 24 x 27 208-230/60/3 R-404A 13.8 15 42 ounces CME1000AE-6A 42 x 24 x 27 230/50/1 R-404A 42 ounces * The system charge is in the machine. This number is for recharging purposes only. If the nameplate has a different value, go by the nameplate. ** Or HACR type circuit breakers. Air Temperature Minimum Maximum 50 F. 1000 F. 0 Water Temperature 40 F. 1000 F. 0 Voltage -5% +10% December, 1994 Page 2 CME855A & CME1000A UTILITY CONNECTION LOCATIONS October, 1994 Page 3 CME855A & CME1000A FOR THE INSTALLER: Environmental Limitations Installation Limitations The ice making portion of this ice system is designed to be installed indoors , in a controlled environment. Minimum Air Temp Water Temp Water Pressure Voltage 50 F. 400F. 20 PSI 197 0 Water Limitations An ice machine is a food manufacturing plant; it takes a raw material, water, and turns it into a food product, ice. The purity of the water is very important in obtaining pure ice and in maximizing product life. These general recommendations should help keep the ice maker clean: 1. Filter the water used to produce ice. Water filters vary greatly in ability and function. Install one that filters out suspended solids to a dimension of 5 microns or smaller. The finer the filter the better, but finer filters will clog sooner than course ones. It may be necessary to add a course filter ahead of the fine filter to prolong filter life. 2. Check with a water treatment specialist for a water test, and recommendations regarding filters and treatment. Service Limitations Some space on the sides, the back and the top should be allowed for service and utility connections. Maximum 1000F. 1000F. 80 PSI 253 Operating the ice machine outside of the above limitations, or outdoors, is potentially damaging to the machine; also it is misuse of the machine, which may void the warranty. Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of UL, NSF, and CUL. 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 part and/or other components not specifically approved by Scotsman. Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and design are subject to change without notice. December, 1994 Page 4 CME855A & CME1000A FOR THE INSTALLER: Machine & Bin Assembly Storage Bin: After uncrating the ice storage bin, attach the legs to the bin: 1. Use a portion of the carton as a cushion, and tip the storage bin on its back. 2. Screw the legs into the threaded holes in the bottom of the bin. 3. Turn the leg levelers all the way in to prepare the bin and ice machine for leveling. 4. Return the bin to the upright position. Ice Maker: 1. Arrange for proper electric, water and drain. See instructions for the plumber and for the electrician. 2. Position the ice storage bin in the selected INDOOR location. 3. Level the bin, in both the front to rear and side to side directions. 4. Inspect the bin top mounting gasket which should be flat, with no wrinkles, to provide a good water seal when the cuber is installed on top of the bin. 5. Install the modular cuber on top of the bin using care to be sure a good seal is made between the two cabinets, use of a mechanical lift is recommended. Align the holes in the bottom back of the cabinet to mate with the two mounting straps on the top rear of the bin. 6. Use bolts and straps found in the hardware package to secure the ice machine to the ice storage bin. When alignment and leveling are completed, tighten the bolts to secure the mounting straps. 7. Install the bin thermostat bracket. The bracket is shipped in a cardboard container located in front of the freezing compartment. Mount the bracket to the bottom of the ice machine with the plastic tube inserted up thru the ice machine base from below. Secure the bracket to the ice machine base using 3 thumbscrews from the hardware package. Uncoil the bin thermostat cap tube and insert it into the plastic tubing of the bracket to the end of the metal tubing. Bin Thermostat Capillary Tube Fasten Machine To Bin Bin Thermostat Bracket March 1995 Page 5 CME855A & CME1000A STACKING TWO UNITS To stack a 42" wide CME cuber onto a CME855A, CME1000A, CM855 or CM1000 cuber: A Heavy Duty Leg Kit is Recommended. 1. Remove the top panel from the lower unit. 2. Add a bead of food grade sealant (such as Scotsman part number 19-0529-01) to the top edges of the lower unit's freezing compartment. 3. Lift the top unit onto the bottom machine (a mechanical lift is recommended). 4. Align the two machine's cabinets, and using the bolts and straps from the hardware package, fasten the two units together at the back. Note: When placing a new unit on a CM855 or CM1000, the outboard (right side viewed from the back) threaded holes should be used. 5. Route the bin thermostat capillary tube from the upper machine into the lower machine and into the bin thermostat bracket, next to the capillary tube from the lower machine. FROM HARDWARE PACKAGE FROM HARDWARE PACKAGE STACKING TWO CME 42" AIR COOLED December, 1994 Page 6 CME855A & CME1000A FOR THE PLUMBER Water Supply The recommended water supply line is a 3/8-inch O.D. tubing with a minimum operating pressure of 20 PSIG and a maximum of 80 PSIG. A separate water inlet is required for the condenser water supply. Connect to cold water supply line with standard plumbing fittings, with shut off valve installed in an accessible place between the water supply and the cuber. In some cases a plumber will be required. CONFORM TO ALL LOCAL CODES Drain Connections: Connections: All drains are gravity type and must have a minimum of 1/4 - inch fall per foot of horizontal run. The drains to be installed must conform with the local plumbing codes. Install a vertical open vent on the ice machine reservoir drain. The ideal drain receptacle is a trapped and vented floor drain. The storage bin drain should be insulated. PLUMBING CONNECTIONS RESERVOIR DRAIN VENT HAND SHUT OFF VALVE HAND SHUT OFF VALVE RESERVOIR DRAIN BIN DRAIN VENT POSITION OF FILTER FLOOR DRAIN October, 1994 Page 7 CME855A & CME1000A FOR THE ELECTRICIAN: Electrical Connections See the NAMEPLATE for current requirements to determine wire size to be used for electrical hookup. The cuber requires a solid chassis to chassis earth ground wire. See Wiring Diagram. Be certain the cuber is connected to its own electrical circuit and individually fused. Voltage variation should not exceed ten percent of the nameplate rating, even under starting conditions. Low voltages can cause erratic operation and may be responsible for serious damage to the ice maker. Electrical connections are made at the rear of the ice maker, inside the junction box. All external wiring should conform to the national, state and local electrical code requirements. Usually an electrical permit and services of a licensed electrician will be required. FUSES or HACR CIRCUIT BREAKERS ELECTRICAL JUNCTION BOX Cuber Electrical Connections January 1997 Page 8 CME855A & CME1000A FOR THE INSTALLER: Final Check List 1. Is the ice maker cabinet in a room where ambient temperatures are within the minimum and maximum temperatures specified? 2. Is there clearance at the left side of the cabinet and at the back and top for service and utility connections? 3. Has water supply pressure been checked to insure a minimum of 20 PSIG and a maximum of 80 PSIG operating pressure? 4. Is the cabinet level? 5. Check that any shipping material has been removed from inside the cabinet. 6. Have all electrical and piping connections been made? 7. Are the Master and Compressor switches on OFF? 8. Has power been connected to the ice maker? 9. Is the water supply line shut off valve installed? 10. Check all refrigerant lines and conduit lines, to guard against vibration or rubbing and possible failure. 11. Have the bin and cabinet been wiped clean and sanitized? Cabinet 12. Has the Customer Secure? Evaluation and Warranty Registration form been properly filled out? Check for correct model and serial numbers from Serial nameplate, then mail the completed form to SCOTSMAN. Power? Final Check List 13. Has the owner been given the name and telephone Water number of the authorized Supply? SCOTSMAN Service Agency serving him? Filter? Reservoir Drain? Bin Drain? October, 1994 Page 9 CME855A & CME1000A INITIAL START UP Ice Maker: 1. Remove screws and front panel. 2. Remove two screws and the control box cover. 3. Remove the evaporator cover. 4. Locate two toggle switches on the front of the control box. Check that the Master ON/OFF switch and the Compressor ON-OFF switch are in the OFF position. 5. OPEN the water supply line shut off valve. 6. Inside the control box is the shaft of the timer and the switch assembly. Rotate the shaft of the timer and switch assembly clockwise to where the actuator arm on the microswitch drops off outer cam into cam slot. See Timer Cam Positions. 7. Move the Master ON/OFF switch to the ON position. TIMER CAM POSITIONS 8. Observe water fill cycle: Water pump operates and water inlet solenoid valve OPENS, incoming water flows from the valve through the tubing, the reservoir fills and excess water drains out the re ...