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 either ice system. NME1854R & FME2404R The product is a remote condenser modular ice system. Its features include: front service for the freezer, gear motor, control box, water reservoir, and bin control; an electronic circuit for monitoring ice and water level; and R-404A as the refrigerant. FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · REMOTE CONDENSER SPECIFICATIONS · · · · · · · · · · · · FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · Remote Condenser Location · · · · · · · · · · · · · · · · · · · · FOR THE INSTALLER: Remote Condenser · · · · · · · · · · · · FOR THE INSTALLER: Precharged Lines · · · · · · · · · · · · · FOR THE INSTALLER: Location · · · · · · · · · · · · · · · · · · FOR THE PLUMBER · · · · · · · · · · · · · · · · · · · · · · · · FOR THE ELECTRICIAN · · · · · · · · · · · · · · · · · · · · · FOR THE INSTALLER: Completed Installation · · · · · · · · · · FOR THE INSTALLER: Final Check List · · · · · · · · · · · · · · START UP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · COMPONENT DESCRIPTION · · · · · · · · · · · · · · · · · · · OPERATION: Water · · · · · · · · · · · · · · · · · · · · · · · · COMPONENT DESCRIPTION: Control Box · · · · · · · · · · · · ELECTRICAL SEQUENCE · · · · · · · · · · · · · · · · · · · · · SYSTEM INFORMATION · · · · · · · · · · · · · · · · · · · · · OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · CLEANING and SANITATION · · · · · · · · · · · · · · · · · · · SENSOR MAINTENANCE · · · · · · · · · · · · · · · · · · · · · BEARING MAINTENANCE · · · · · · · · · · · · · · · · · · · · · AUGER MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · SERVICE DIAGNOSIS: Condition · · · · · · · · · · · · · · · · · 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: Gear motor Assembly · · · · · REFRIGERATION SYSTEM SERVICE · · · · · · · · · · · · · · What to Do Before Calling for Service · · · · · · · · · · · · · · · The 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 Table of Contents · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 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 Page 33 Page 34 Page 35 NME1854R & FME2404R FOR THE INSTALLER These machines are designed to fit the following Scotsman storage bins: ·B90 and extensions, with bin top KBT18. TOP VIEW Allow 6" of space behind the machine for utility connections. When installing a new system, check to be sure that you have everything you need before beginning: ·Correct Bin ·BH800 no bin top needed. ·BH900 using bin top KBT14. 18.28" Ice Chute 6.7" x 6.2" ·Correct Ice Machine ·Correct Bin Top ·All kits, legs, and information required for the specific job. BACK VIEW 34.84" 13.84" There are two separate ice making and refrigeration systems in this model. The liquid and discharge lines from each system must go to separate circuits in one remote condenser (ERC302). Liquid Line 21" 3.1" 15.53" 3.1" Discharge Line Connection (left system) Allow 6" above machine for service. 20.84" 4.5" 9.43" Remote Condenser Junction Box Electrical Inlet Water Inlet 3/8" Flare Drain 3/4" FPT Cond. Type R-Air R-Air R-Air R-Air Minimum Circuit Ampacity 22.8 17.6 22.8 Maximum Refrigerant Fuse Size Charge 30 20 30 208 208 208 5.25" 3" 17.8" SPECIFICATIONS: Ice Machine Model Number Dimensions (w/o bin) HXWXD FME2404RS-32A FME2404RS-3A NME1854RS-32A NME1854RS-3A 18.8" 21.66" Basic Electrical Ice Type 27" x 42" x 24" 208-230/60/1 27" x 42" x 24" 208-230/60/3 27" x 42" x 24" 208-230/60/1 27" x 42" x 24" 208-230/60/3 FLAKE FLAKE Nugget Nugget Minimum circuit ampacity is used to determine wire size and type per National Electrical Code. January 2000 Page 2 REMOTE CONDENSER SPECIFICATIONS Model ERC302-32 Use with 1 FME2404R or NME1854R NME1854R & FME2404R Basic Electrical 208-230/60/1 ERC DIMENSIONS Model ERC302 A 43 3 8" B 10 3 4 F 21 3 4" G 16 5 8" 23 13 16" 19 7 8" Other Required Items: RTE25 Precharged line set, 25', R-404A - 2 required. Or: RTE40. Precharged line set, 40', R-404A - 2 required. Ice Machine NAMEPLATE LOCATED ON BACK PANEL SERIAL PLATE LOCATED BEHIND FRONT PANEL REMOTE CONDENSERS AND BINS ALSO HAVE MODEL AND SERIAL NUMBERS January 2000 Page 3 NME1854R & FME2404R FOR THE INSTALLER Installation Limitations: This ice system is designed to be installed indoors, in a controlled environment: Min Max 1000F Air Temperature 500F (Not including the remote condenser) 1000F Water Temperature 400F Water Pressure (psi) 20 80 Voltage 198 253 (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. 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. Location Install the machine a location where it has enough space around it to be accessible for service, usually a minimum of 6 inches. Avoid hot, dirty and crowded locations. Be sure that the location for the machine is within its limitations for air and water temperatures. 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. Install the bin top according to the directions with the bin top. 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. 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. Note: Be sure to allow a 6" minimum space above the top of the machine for service. January 2000 Page 4 Remote Condenser Location Use the following for planning the placement of the condenser relative to the ice machine Location Limits - condenser location must not exceed ANY of the following limits: ·Maximum rise from the ice machine to the condenser is 35 physical feet NME1854R & FME2404R Configurations that do NOT meet these requirements must receive prior written authorization from Scotsman. Do NOT: ·Route a line set that rises, then falls, then rises. ·Maximum drop from the ice machine to the condenser is 15 physical feet Calculation Formula: ·Drop = dd x 6.6 (dd = distance in feet) ·Physical line set maximum length is 100 feet. ·Calculated line set length maximum is 150. ·Rise = rd x 1.7 (rd = distance in feet) ·Horizontal Run = hd x 1 (hd = distance in feet) ·Calculation: Drop(s) + Rise(s) + Horizontal Run = dd+rd+hd = Calculated Line Length ·Route a line set that falls, then rises, then falls. Calculation Example 1: The condenser is to be located 5 feet below the ice machine and then 20 feet away horizontally. 5 feet x 6.6 = 33. 33 + 20 = 53. This location would be acceptable Calculation Example 2: The condenser is to be located 35 feet above and then 100 feet away horizontally. 35 x 1.7 = 59.5. 59.5 +100 = 159.5. 159.5 is greater than the 150 maximum and is NOT acceptable. Remote Condenser Located ABOVE Ice Machine hd 40.35" 17.15" 22.87" rd dd Remote Condenser Located BELOW Ice Machine January 2000 Page 5 NME1854R & FME2404R FOR THE INSTALLER: Remote Condenser Location Select the best available location, protecting the condenser from extremes of dirt, dust, and sun. Meet all applicable building codes. Usually the services of a licensed electrician are required. Roof Attachment 1. Install and attach the remote condenser to the roof of the building, using the methods and practices of construction that conform to the local building codes, including having a roofing contractor secure the condenser to the roof. 2. Have an electrician connect the remote condenser fan motor to the Ice Machine, using the junction box at the back of the Ice Machine. PRECHARGED LINE ROUTING CAUTION Do not connect precharged tubing until all routing and forming of the tubing is complete. See the coupling instructions for connecting information. 1. Each set of precharged refrigerant lines (either 25 foot or 40 foot) consists of a 3/8 inch diameter liquid line and a 1/2 inch diameter discharge line. Both ends of each line have quick connect couplings, one end has a schrader valve connection, that end goes to the condenser. Note: The openings in the building ceiling or wall, listed in the next step, are the minimum sizes recommended for passing the refrigerant lines through. 2. Have the roofing contractor cut a minimum hole for the refrigerant lines of 1 3/4 inch. Check local codes, a separate hole may be required for the electrical power to the condenser. CAUTION DO NOT KINK OR CRIMP REFRIGERANT TUBING WHEN INSTALLING IT. 3. Route the refrigerant lines through the roof opening. Follow straight line routing whenever possible. Any ...