CMS1402 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 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . For the Installer Location & Assembly Stacking ................................ 3 4 5 6 7 8 10 11 12 15 17 19 20 23 2 ..................................... ................................. .................................. .................................. For the Electrician For the Plumber Final Check List Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Freeze Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Harvest Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Component Description ............................... Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Diagnosis ................................. Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow paper. September 1993 Page 1 CMS1402 FOR THE INSTALLER The CMS1402B will fit the following Scotsman ice storage bin (48" wide): BH900, and with adaptors, onto the following Scotsman ice storage bins: 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.S.A. 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. · BH1000 (with KBT21) or BH1360; and it will stack (with kits) onto the following ice machines: · CMS1202, or CMS1402 (use KSCMS48). The stacking kit includes gaskets and trim strip. The normal finish for the machine is enamel sandalwood. 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. Note: "B" model's have two front panels, production began early 1992. Water Cooled Air Cooled Model Number CMS1402AE-3B CMS1402WE-3B CMS1402AE-32B Dimensions (w/o bin) W" x D" x H" 48 x 243/8 x 271/2 48 x 243/8 x 271/2 48 x 243/8 x 271/2 Basic Electrical 208-230/60/3 208-230/60/3 208-230/60/1 208-230/60/1 Minimum Circuit Maximum Ampacity* Fuse Size 20.2 19.5 31 30.3 20 20 30 30 Refrigerant Condenser Charge Type 60 oz. R-22 Air 64 oz. R-22 Water 60 oz. R-22 Air 64 oz. R-22 Water CMS1402WE-32B 48 x 243/8 x 271/2 * 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. This ice system is designed to be installed indoors, in a controlled environment. MINIMUM Air Temperature Water Temperature Water Pressure 50 F. 400F. 20 psi September 1993 Page 2 0 MAXIMUM 1000F. 1000F. 80 psi CMS1402 FOR THE INSTALLER: Location & Assembly Location: After uncrating and inspection, the unit is ready for installation. It is important that the machine be installed 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 envrionmental 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 stacking kit KSCMS48. Use heavy duty leg kt 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 postion, 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 mechancial 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 icemaker to secure the ice machine to the bin. 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. September 1993 Page 3 CMS1402 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 icemaker 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 icemakers, bolt the upper icemaker cabinet to the lower icemaker 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 September 1993 Page 4 CMS1402 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 icemaker. Electrical connections are made at the rear of the icemaker, 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 September 1993 Page 5 CMS1402 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 thewater supply and the cuber. ln 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 inot 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 5/8 inch O.D. copper tubing and should be vented and run separately. Insulation for high humidity areas is recommended. Water Cooled models require another inlet connection to the condenser, 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 is 3/4" FPT. There must be a vent at this connection for proper sump drainage. 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 September 1993 Page 6 CMS1402 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 level? 5. Check that any shipping material has been removed from inside the cabinet. 6. Check that the reservoir is properly secured to the bottom of the evaporator plates. 7. Have all electrical, water and drain connections been made? 8. Is the water supply line shut off valve installed and electrical wiring properly connected? 9. Check all refrigerant lines and conduit lines, to guard against vibration or rubbing and possible failure. 10. Have the bin and cabinet been wiped clean? 11. Has the Manufacturers Registration form been properly filled out? Check for correct model and serial numbers from Serial nameplate, then mail the completed card to the SCOTSMAN factory. 12. Has the owner/user been given the Service Manual and instructed how to operate and maintain the icemaker? 13. Has the owner been given the name and telephone number of the authorized SCOTSMAN Service Agency serving him? LEVEL ASSEMBLY SUMP DRAIN HAND SHUT OFF VALVE WATER COOLED DRAIN BIN DRAIN OPTIONAL FILTER HAND SHUT OFF VALVE FINAL INSTALLATION September 1993 Page 7 CMS1402 INITIAL START UP 1. Remove the front panels by removing screws at the base and pulling out. 2. Remove two screws and the control box cover. 3. Check that the two switches on the control box, the ICE-OFF-WASH rocker switch and the COMPRESSOR ON-OFF toggle switch are in the OFF position. 4. OPEN the water supply line shut off valve. 5. Switch the electrical power to the machine ON. 6. Inside the control box is the shaft of the timer and the switch assembly. Rotate the shaft of the timer until the actuator arm on the microswitch drops off outer cam into cam slot. See "Front View of Timer". 7. Move the ICE-OFF-WASH rocker switch to the ICE position. 8. Check the water fill cycle: For several minutes the inlet water valve will be open and water will flow into the reservoir. Near end of the fill cycle, water should be overflowing the reservoir and draining thru the reservoir drain. If at the end of the fill cycle the reservoir is not full, repeat step 6. Check that the sump covers are snapped in place. Check that the water distributors are properly seated at the top of the evaporators, and that water is flowing over all of the cube cells. Note: Some water may spray from the evaporators is normal when the machine is new. The spray will stop after a few batches of ice. 9. When the sump has filled, move the compressor ON-OFF toggle switch, to the ON position. 10. On air cooled models the fan motors will beg ...