INTRODUCTION To the owner or user: The service manual you are reading 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. NME1854 & FME2404 This product contains 2 separate ice making systems in one cabinet. Table of Contents FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · FOR THE INSTALLER: Environmental Limitations · · · · · · · · · FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · FOR THE INSTALLER: Location · · · · · · · · · · · · · · · · · · FOR THE PLUMBER · · · · · · · · · · · · · · · · · · · · · · · · FOR THE ELECTRICIAN · · · · · · · · · · · · · · · · · · · · · · FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · START UP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · COMPONENT DESCRIPTION · · · · · · · · · · · · · · · · · · · COMPONENT DESCRIPTION · · · · · · · · · · · · · · · · · · · COMPONENT DESCRIPTION: Control Box · · · · · · · · · · · · ELECTRICAL SEQUENCE · · · · · · · · · · · · · · · · · · · · · OPERATION: Performance · · · · · · · · · · · · · · · · · · · · · OPERATION: Water · · · · · · · · · · · · · · · · · · · · · · · · OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · CLEANING and SANITATION · · · · · · · · · · · · · · · · · · · SENSOR MAINTENANCE · · · · · · · · · · · · · · · · · · · · · BEARING MAINTENANCE · · · · · · · · · · · · · · · · · · · · · AIR COOLED CONDENSER MAINTENANCE · · · · · · · · · · · AUGER MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · SERVICE DIAGNOSIS: · · · · · · · · · · · · · · · · · · · · · · · SERVICE DIAGNOSIS · · · · · · · · · · · · · · · · · · · · · · · CONTROL SYSTEM DIAGNOSTICS · · · · · · · · · · · · · · · REMOVAL AND REPLACEMENT: Water Reservoir & Bin Controls REMOVAL AND REPLACEMENT: Bearing And Breaker · · · · · REMOVAL AND REPLACEMENT: Auger · · · · · · · · · · · · · REMOVAL AND REPLACEMENT: Water Seal · · · · · · · · · · · REMOVAL AND REPLACEMENT: Evaporator · · · · · · · · · · · REMOVAL AND REPLACEMENT: Gearmotor · · · · · · · · · · · REMOVAL AND REPLACEMENT: Fans · · · · · · · · · · · · · · REFRIGERATION SERVICE · · · · · · · · · · · · · · · · · · · · This manual was printed on recycled paper. Keep it for future reference. Note the Warning symbol where it appears, it marks a possible hazard. January 2000 Page 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 NME1854 & FME2404 FOR THE INSTALLER The FME2404 and the NME1854 are modular flakers designed to fit the following Scotsman storage bins: top KBT18) BACK VIEW Condenser Inlet (W/C): 3 " FPT 8 ·B90 and extensions (with bin ·BH800 no bin top required. ·BH900 using bin top KBT14. ·BH1366 or BH1666, no bin 9.5" 5.25" 3" 14.9 15.8" 18.74 18.9" top required. When installing a new system, check to be sure that you have everything you need before beginning: Electrical Inlet Water Inlet 3 8" Flare Drain ¾" FPT Condenser Drain (W/C): ½" FPT 6" ·Correct Bin ·Correct Ice Machine ·Correct Bin Top (if required) ·All kits, legs, and information required for the specific job. Note: Allow 6" behind and 6" above the unit for air circulation, utility connections, and service. TOP VIEW 18.28" Ice Chute 2.64" x 6.2" 13.84" 34.84" SPECIFICATIONS: Ice Machine Model FME2404AS-32 FME2404WS-32 FME2404WS-32 FME2404AS-3 FME2404WS-3 FME2404WS-3 NME1854AS-32 NME1854WS-32 NME1854WS-32 NME1854AS-3 NME1854WS-3 NME1854WS-3 Series Dimensions Basic (w/o Bin) Electrical WxDxH A or B A B A or B A B A or B A B A or B A B 42" x 24" x 27" 42" x 24" x 27" same 42" x 24" x 27" 42" x 24" x 27" same 42" x 24" x 27" 42" x 24" x 27" same 42" x 24" x 27" 42" x 24" x 27" same Ice Type Flake Flake Flake Flake Flake Flake Nugget Nugget Nugget Nugget Nugget Nugget * Per system. Always go by the nameplate Minimum circuit ampacity is used to determine wire size and type per the National Electric Code. June 2002 Page 2 208-320/60/1 208-320/60/1 208-230/60/1 208-230/60/3 208-230/60/3 208-230/60/3 208-230/60/1 208-230/60/1 208-230-60/1 208-230/60/3 208-230/60/3 208-230/60/3 Air Water Water Air Water Water Air Water Water Air Water Water Condenser Minimum Max. Refrigerant Type Circuit Fuse Charge, Ampacity Size R-404A 21.0 19.8 19.8 15.9 14.6 14.6 21.0 25 25 25 20 20 20 25 30 oz 24 oz. 22 oz. 30 oz 24 oz. 24 oz 30 oz 24 oz. 22 oz. 30 oz 24 oz. 22 oz 15.9 14.6 14.6 20 20 20 FOR THE INSTALLER: Environmental Limitations Installation Limitations: This ice system is designed to be installed indoors, in a controlled environment: Min Max 0 Air Temperature 50 F 1000F 1000F Water Temperature 400F Water Pressure 20 PSI 80 PSI Voltage 198 VAC 253 VAC (Compared to the nameplate) Operating the machine outside of the limitations is misuse and can void the warranty. 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. This is not intended as a complete resource for water related questions, but it does offer these general recommendations: 1. Check with a water treatment specialist for a water test, and recommendations regarding filters and treatment. 2. In most cases, the water used to make ice should be filtered or treated, depending upon the water. There is no one type of water filter that will be effective in all situations. That is why a water test is important. RO Water Limitation: Water conductivity must be no less than 35 microSiemens/cm. NME1854 & FME2404 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. May 2001 Page 3 NME1854 & FME2404 FOR THE INSTALLER Typical Storage Bin with Extension and Bin Top Location: After uncrating and inspection the unit is ready for installation. Install the machine in a location where it has enough space around it to be accessible for service, and reserve a minimum of 6" at the back for air circulation on air cooled models. Avoid hot, dirty and crowded locations. Be sure that the location for the machine is within the limitations described on page 3. Storage Bin: Tip the storage bin on its back, using parts of the carton to protect the exterior finish. Install the legs into the threaded holes in the bottom of the bin. Turn the leg levelers all the way in preparation for leveling later. Return the bin to the upright position, remove paper covering the bin gasket. Note: Do not push bin into position, instead lift it there. Pushing a bin, especially one with ice in it, can cause damage to the legs and the leg mounts. Install the appropriate bin top on the bin, according to the instructions for the bin top. ice machine: The machine is heavy, so the use of a mechanical lift is recommended for lifting the machine high enough to install on top of the bin. After the unit is placed on the bin, line it up so it is even with the back side. Secure the machine to the bin with the hardware provided with the machine. Remove the front panel and remove any shipping blocks. January 2000 Page 4 FOR THE INSTALLER: Location NME1854 & FME2404 ALLOW ROOM FOR AIR CIRCULATION AND SERVICE ACCESS DO NOT STACK ANYTHING IN FRONT OF THE MACHINE January 2000 Page 5 NME1854 & FME2404 FOR THE PLUMBER Water Inlet Air Cooled Models: Connect to a water supply that is cold and potable. Use 3 8" O.D. copper tubing, and connect to the single 3 8" male flare at the back of the cabinet. This connection supplies water to both ice making systems. Install a hand valve near the machine to control the water supply. Water Treatment: In most areas, a water filter of some type will be useful. In areas where the water is highly concentrated with minerals the water should be tested by a water treatment specialist, and the recommendations of the specialist regarding filtration and/or treatment should be followed. Water Cooled Models: A separate 3 8" O.D. copper line is recommended, with a separate hand valve to control it. It is connected to a single 3 8" FPT condenser inlet at the back of the cabinet. This connection supplies water to both water cooled condensers. The water pressure to all lines must always be above 20 psig, and below 80 psig. CONFORM TO ALL APPLICABLE CODES Drains Air Cooled Models: Connect a drain tube to the one ¾" FPT gravity drain fitting at the back of the cabinet (used or both ice making systems). A ¼ inch per foot fall is the minimum pitch for the drain tubing. There MUST be a vent at the highest point of the drain line, and the ideal drain receptacle is a trapped and vented floor drain. Use only ¾" rigid tubing. Water Cooled Models: Install a separate drain tube for the condenser discharge water. There is one drain for both ice making systems. Connect it to the ½" FPT condenser drain connection at the back of the cabinet. Storage Bin: Connect a separate gravity type drain tube, similar to the air cooled drain. Insulation of this drain line is recommended. COMPLETE PLUMBING INSTALLATION, WATER COOLED AIR COOLED MODELS FIELD SUPPLIED FILTER HAND VALVE WATER INLET VENTED DRAIN WATER COOLED HAND VALVE CONDENSER INLET VENTED DRAIN WATER FILTER CONDENSER DRAIN January 2000 Page 6 FOR THE ELECTRICIAN Connect electrical power to the leads in the junction box at the rear of the machine. Check the nameplate (located on the back panel) for the voltage requirements, and for the minimum circuit ampacity. The machine requires a solid chassis to earth ground wire. The ice machine must be connected to its own electrical circuit so that it is individually fused. NME1854 & FME2404 Voltage variation must remain within design limitations, even under starting conditions. All external wiring must conform to national, state, and local electrical codes. The use of a licensed electrician is required to perform the electrical installation. CONFORM TO ALL APPLICABLE CODES WATER COOLED AIR COOLED POWER SUPPLY January 2000 Page 7 NME1854 & FME2404 FOR THE INSTALLER Final Check List ______1. Is the ice system installed indoors in a location where the air and water temperatures are controlled, and where they do not exceed the design limitations? ______2. Is there an electrical service disconnect within sight of the installed machine? Has the voltage been checked, and compared to nameplate requirements? ______3. ...