CME1202 & CME1402 INTRODUCTION To the owner or user: This service manual is intended to provide you and the maintenance or service technician with the information needed to install, start up, clean, maintain and service this ice system. Table of Contents FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2 AIRFLOW ON AIR COOLED MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3 UTILITY CONNECTION LOCATIONS: Back Views . . . . . . . . . . . . . . . . . . . . . . . . page 4 FOR THE INSTALLER: Location & Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5 FOR THE ELECTRICIAN FINAL CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7 FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14 INITIAL START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10 FREEZING CYCLE OPERATION HARVEST CYCLE - HOT GAS BYPASS COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15 CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18 ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 20 SYSTEM SPECIFICATIONS: CME1202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 22 SYSTEM SPECIFICATIONS: CME1402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23 SERVICE DIAGNOSIS: Electrical and/or Adjustments SERVICE DIAGNOSIS: Ice Level Control Circuit . . . . . . . . . . . . . . . . . . . . . . page 24 SERVICE DIAGNOSIS: Refrigeration and/or Mechanical . . . . . . . . . . . . . . . . . . . . . page 25 . . . . . . . . . . . . . . . . . . . . . . . . . page 26 REMOVAL AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 27 REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 29 R-404A INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 30 LIQUID CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31 Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow paper. This manual was printed on recycled paper. Keep this manual for future reference. Note this symbol when it appears in the manual. It indicates a potential hazard. January 1995 Page 1 CME1202 & CME1402 FOR THE INSTALLER These machines will fit Scotsman's ice storage bin (48" wide) BH900, and with adapters, Scotsman's ice storage bins BH1000 (with KBT21) or BH1360. They will stack (with kits) onto the following ice machines: Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of U.L., N.S.F., and C.U.L. 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. Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and designs are subject to change without notice. · CME1202 or CME1402 (use KSCMS48). · CMS1202 or CMS1402 (use KSCMS48). · MCM1462 (use KSMCM48 - includes legs) The stacking kit includes gaskets and trim strip. Heavy duty leg kits are recommended for stacking. See sales support literature for additional kits that may be required for certain installations. The normal finish for the machine is enamel. An optional stainless steel panel kit (SPKCMS48) can be field installed. It contains a stainless steel top, left side panel, an overlay right side panel, and front panels. Model Number Dimensions Basic (w/o bin) Electrical W" x D" x H" 48 x 243/8 x 271/2 208-230/60/3 48 x 243/8 x 271/2 208-230/60/3 243/8 x 271/2 208-230/60/1 CME1402AE-3A CME1402WE-3A Minimum Circuit Ampacity* 15 13.5 22.3 20.9 Maximum Refrigerant Condenser Fuse Charge Type Size+ R-404A 20 64 oz. Air 20 30 30 62 oz. 64 oz. 62 oz. 64 oz. 62 oz. Water Air Water Air Water Air Water Air Water Air CME1402AE-32A 48 x 243/8 x 271/2 208-230/60/1 CME1402WE-32A 48 x CME1402AE-6A CME1402WE-6A CME1202AE-3A CME1202WE-3A 48 x 243/8 x 271/2 230/50/1 48 x 243/8 x 271/2 230/50/1 48 x 243/8 x 271/2 208-230/60/3 48 x 243/8 x 271/2 208-230/60/3 13.8 12.4 21.6 18.6 20 20 30 30 64 oz 62 oz. 64 oz. 62 oz. 64 oz. CME1202AE-32A 48 x 243/8 x 271/2 208-230/60/1 CME1202WE-32A 48 x 243/8 x 271/2 208-230/60/1 CME1202AE-6A CME1202WE-6A 48 x 243/8 x 271/2 230/50/1 62 oz. Water 48 x 243/8 x 271/2 230/50/1 * Minimum Circuit Ampacity is used to determine wire size and type per the National Electric Code. If the numbers listed above are not the same as the nameplate, go by the nameplate. + Or HACR circuit breakers. This ice system is designed to be installed indoors, in a controlled environment. January 1995 Page 2 CME1202 & CME1402 AIRFLOW ON AIR COOLED MODELS NAMEPLATE IS ON THE BACK PANEL A Serial Number Plate is Located Behind The Front Panel AIR FLOWS IN THE FRONT AND OUT THE BACK January 1995 Page 3 CME1202 & CME1402 UTILITY CONNECTION LOCATIONS: Back Views Air Cooled CONDENSER INLET 1.0 CM 3/8 IN. FPT Water Cooled WATER INLET 3/8 IN MALE FLARE 8.91 IN January 1995 Page 4 CME1202 & CME1402 FOR THE INSTALLER: Location & Assembly Location: After uncrating and inspection, the unit is ready for installation. It is important that the machine be installed INDOORS in a location where it has enough space around it to be accessible for service. A minimum of 6" must be allowed at the back for air circulation on air cooled models. Try to avoid hot, dirty and crowded locations. Be sure that the location for the machine is within the environmental limitations. Storage Bin: Tip the storage bin on its back, using parts of the carton to protect the exterior finish. Install the casters, use a heavy duty leg kit if stacking two ice machines on one bin. 1. Arrange for proper electric, water and drain. See instructions for the plumber and for the electrician. 2. Single ice machine on bin: Use legs packed with the bin. After mounting the legs position the ice storage bin in the selected location: Two ice machines on a bin require a stacking kit such as KSCMS48. Use heavy duty leg kit KLP6 when stacking onto the BH900. Note: Allow enough space to the left and back to service the machine. Do NOT push the bin into position, instead, lift it there. Pushing a bin may damage the legs and leg mounts. Level the bin in both the front to rear and side to side directions by adjusting the leg levelers. Stacked units use non-adjustable legs, and must be leveled with shims. Select a well ventilated location for air cooled models. Note: Air cooled models blow air from front to back. 3. 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. Ice Maker: 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 rear of the cabinet to mate with the two mounting holes on the top rear of the bin. Use bolts and straps found on the back of the ice maker to secure the ice machine to the bin. OPERATIONAL LIMITATIONS Air Temperature Water Temperature Water Pressure MINIMUM 500F. 400F. 20 psi MAXIMUM 1000F. 1000F. 80 psi SHIPPING BRACKETS ICE MACHINE AND BIN ASSEMBLY When alignment and leveling are completed, tighten the bolts to secure the mounting straps. Remove the front panels, and remove the evaporator shipping brackets and hardware. January 1995 Page 5 CME1202 & CME1402 FOR THE INSTALLER: Location & Assembly Stacking Instructions A stacking kit, KSCMS48, is required to interconnect the ice level controls, seal the freezing compartments, and to retain the top edges of the bottom unit's front panels. Follow the installation instructions of the stacking kit, but in general: Use heavy duty legs (kit KLP6). When stacking two units, remove the top panel and the evaporator cover from the lower icemaker. STACKING (The top removed from the lower ice maker will no longer have any function.) A stainless steel bracket (from the kit) must be attached to the top of the bottom machine before the units are stacked. Place strips of gasket material (from the stacking kit) on the top edges of the bottom unit's freezing compartment. Carefully lift the uncrated top unit onto the bottom one and align the two cabinets. Use of a mechanical lift is recommended for this step. At the back of the two ice makers, bolt the upper ice maker cabinet to the lower ice maker cabinet using the mounting straps and bolts from the hardware package. Add the relay box to interconnect the two ice machine's bin control circuits. STAINLESS STEEL PANEL RETAINING BRACKET EVAPORATOR COVER January 1995 Page 6 CME1202 & CME1402 FOR THE ELECTRICIAN SEE 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. FOLLOW ALL APPLICALBE CODES 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. GROUND SCREW DETAIL OF JUNCTION BOX HAND DISCONNECT SWITCH JUNCTION BOX ELECTRICAL CONNECTIONS, WATER COOLED ELECTRICAL CONNECTIONS, AIR COOLED January 1995 Page 7 CME1202 & CME1402 FOR THE PLUMBER FOLLOW ALL LOCAL CODES: The recommended water supply line is a 3/8-inch O.D. copper tubing with a minimum operating pressure of 20 PSIG and a maximum of 80 PSIG. 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. Water Limitations: An ice machine is a food manufacturing plant, it takes in 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. It is generally better to filter the water, although there is no one filter that will cure all water problems. A good filter combined with a polyphosphate feeder gives about the best overall performance. Cold, potable water must be supplied to the water inlet fitting. CONNECTIONS: All drains are gravity type and must have a minimum of 1/4-inch fall per foot on horizontal runs. The drains to be installed to conform with the local plumbing code. Install a vertical open vent on drain line high point to insure good draining. The ideal drain receptacle is a trapped and vented floor drain. Recommended bin drain is 3/4" rigid tubing and should be routed separately. Insulation for high humidity areas is recommended. Water Cooled models require another inlet connection and another drain for the condenser. The drain must be separate from the bin drain. Bin Drain: The bin drains from the bottom, and needs no vent unless there is a long horizontal run. Terminate drains above the drain receptacle with the proper air gap per local code. The ice machine sump drain fitting is 3/4" FPT. There must be a vent at this connection for proper sump drainage. Recommended drain tube is 3/4" rigid tubing and should be routed separately. Insulation for high humidity areas is recommended. WATER COOLED CONNECTIONS CONDENSER INLET CONDENSER DRAIN AIR COOLED CONNECTIONS OPTIONAL SUMP DRAIN MUST FILTER 3/8" MALE BE VENTED FLARE POTABLE WATER SUPPLY 3/4" FPT HAND SHUT OFF VALVE AIR GAP BETWEEN DRAIN LINES AND BUILDING DRAIN AIR GAP BETWEEN DRAIN LINES AND BUILDING DRAIN VENT BIN DRAIN WATER SUPPLY AND DRAIN CONNECTION January 1995 Page 8 CME1202 & CME1402 FINAL CHECK LIST 1. Is the cabinet in a room where ambient temperatures are within the minimum and maximum temperatures specified? 2. Is there at least six inches clearance at the left and back sides of the cabinet for proper air circulation? (Air Cooled models) 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 lev ...