CME1202R & CME1402R 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 BACK VIEW OF CABINET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3 ERC401 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4 FOR THE INSTALLER: Location & Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5 FOR THE INSTALLER: Location & Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6 FOR THE INSTALLER: Scotsman Remote Condenser . . . . . . . . . . . . . . . . . . . . . . page 7 FOR THE INSTALLER: Coupling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8 FOR THE ELECTRICIAN FINAL CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9 FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15 INITIAL START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 12 FREEZING CYCLE OPERATION HARVEST CYCLE - HOT GAS BYPASS COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 16 CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 19 SYSTEM SPECIFICATIONS: CME1202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21 SYSTEM SPECIFICATIONS: CME1402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 22 ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23 . . . . . . . . . . . . . . . . . . . . . . page 25 SERVICE DIAGNOSIS: Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 24 SERVICE DIAGNOSIS: Electrical and/or Adjustments SERVICE DIAGNOSIS: Refrigeration and/or Mechanical . . . . . . . . . . . . . . . . . . . . . page 26 SERVICE DIAGNOSIS: Bin Ice Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . page 27 REMOVAL AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 28 REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31 LIQUID CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 32 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. January 1995 Page 1 Note this symbol when it appears in the manual. It indicates a potential hazard. CME1202R & CME1402R FOR THE INSTALLER These machines will fit the following Scotsman ice storage bins: A remote condenser and precharged tubing kit are required to assemble this ice system. 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. · BH900 · BH1000 (with bin top KBT21) · BH1360 and will stack onto the following ice machines: · CME1402 or CME1202 (use KSCMS48) · MCM1462 or CMS1402B or CMS1202B (with stacking kit KSCMS48) 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. Model Number Dimensions (without bin) W" x D" x H" Basic Electrical Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and designs are subject to change without notice. Minimum Maximum Refrigerant Condenser Circuit Fuse Charge** Type Ampacity* Size+ R-404A 20 30 20 30 336 oz. 336 oz. 336 oz. 336 oz. Remote Air Remote Air Remote Air Remote Air CME1402RE-3A CME1202RE-3A CME1202RE-6A 48 x 243/8 x 271/2 208-230/60/3 15.5 48 x 243/8 243/8 x 271/ 271/ 208-230/60/3 14.4 CME1402RE-32A 48 x 243/8 x 271/2 208-230/60/1 22.9 2 CME1202RE-32A 48 x 243/8 x 271/2 208-230/60/1 20.9 336 oz. Remote Air 48 x x 2 230/50/1 * Minimum Circuit Ampacity is used to determine wire size and type per the National Electric Code. + Or HACR type circuit breakers. ** The unit is shipped with the charge in the receiver and, beginning with May 1996 production, 112 oz in the Scotsman ERC401 condenser. For re-charging purposes, see the table below. Use Scotsman remote condenser RCE1401 or ERC401. Use precharged tubing kit RTE25 (25') or RTE40 (40"). Note: This refrigeration system may NOT be connected to a condenser circuit that had been used in a R-12, R-22 or R-502 system. Doing so will void the refrigeration system warranty. This ice system (except remote condenser) is designed to be installed indoors, in a controlled environment. MINIMUM Air Temperature Water Temperature Water Pressure Voltage 500F. 400F. 20 psi -5% MAXIMUM 1000F. 1000F. 80 psi +10% Charging Table Condenser Model ERC401 RCE1401 MAC 7G June 1996 Page 2 Total System Charge 448 oz 448 oz 336 oz CME1202R & CME1402R BACK VIEW OF CABINET June 1996 Page 3 CME1202R & CME1402R ERC401 SPECIFICATIONS 23 13/16" 19 7/8" ERC Dimensions A 43 3/8" B 10 3/4" F 21 3/4" G 16 5/8" June 1996 Page 4 CME1202R & CME1402R 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. 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 legs packed with the BH900. If stacking use a heavy duty leg kit (KLP6). 1. Arrange for proper electric, water and drain. See instructions for the plumber and for the electrician. 2. After mounting the legs position the ice storage bin in the selected location: 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. 3. Inspect the bin top mounting gasket. It must be flat, with no gaps, 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 machine to secure the ice machine to the bin. When alignment and leveling are completed, tighten the bolts to secure the mounting straps. Remove the front panel, and remove the evaporator shipping brackets and hardware. Remote Condenser: A new condenser coil designed for the machine's capacity MUST be used. Because of the possibility of mineral oil contamination, coils and line sets that had been connected to R-12, R-502 or R-22 units MAY NOT BE CONNECTED TO THIS SYSTEM. Doing so voids the refrigeration system warranty. June 1996 Page 5 SHIPPING BRACKETS ICE MACHINE AND BIN ASSEMBLY CME1202R & CME1402R FOR THE INSTALLER: Location & Assembly Stacking Instructions A stacking kit, KSCMS48, is required to interconnect the ice level controls, seal the freezing compartments, support the bin with heavy duty legs, and retain the front panels. Follow the installation instructions of the stacking kit, but in general: Replace the original bin legs with heavy duty legs (KLP6). When stacking two units, remove the top panel and the evaporator cover from the lower ice maker. STACKING (The top removed from the lower ice maker will no longer have any function.) Add a strip of gasket (from the stacking kit) to the top edge of the bottom ice machines evaporator compartment. Install the panel retaining bracket onto the bottom ice machine before placing the upper unit on it. Place additional gasket onto the top edges of the bottom ice machine. 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 kit to interconnect the two ice machine's bin control circuits. STAINLESS STEEL PANEL RETAINING BRACKET EVAPORATOR COVER June 1996 Page 6 CME1202R & CME1402R FOR THE INSTALLER: Scotsman Remote Condenser Locate the condenser as near as possible to the interior location of the ice maker. Location of the condenser is limited by the specific length of precharged refrigerant tubing supplied for the application. The pre-charged tubing connects the ice maker to the remote condenser. The condenser must be above the ice maker. Select the best available location, protecting the condenser from extremes of dirt, dust, and sun. Meet all applicable building codes. Roof Attachment: Install and attach the remote condenser unit 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. 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 instructions. 1. Each set of precharged refrigerant lines 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, the end without access valves goes to the ice maker. 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 1.75". 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. REFRIGERANT CONNECTIONS Follow straight line routing whenever possible. Any excess tubing MUST be retained within the building. 4. Spiral any excess length of pre charged tubing inside the building. Use a horizontal spiral to avoid any traps in the lines. Note: Spiral need not be as tight as illustrated. 5. Have the roofing contractor seal the holes in the roof per local codes. LOCATE CONDENSER NO LOWER THAN ICE MACHINE TYPICAL INSTALLATION June 1996 Page 7 CME1202R & CME1402R FOR THE INSTALLER: Coupling Instructions CAUTION The couplings on the sets of precharged lines are self sealing when installed properly. Carefully follow the instructions: Initial Connections: 1. Remove the protector caps and plugs. Wipe the seats and threaded surfaces with a clean cloth to be certain that no foreign matter remains on them. 2. Lubricate the inside of the couplings, especially the O-Rings with refrigerant oil. Final Connections: 3. Begin tightening the couplings together by hand, then using two wrenches (it is important that ONLY the nut on the precharged lines be turned, the other parts of the couplings must NOT be allowed to turn or the process will tear out the diaphragms and they will be loose in the refrigeration system) tighten the coupling until it bottoms out or a definite increase in resistance is felt. TIGHTENING THE QUICK CONNECTS · The 1/2 inch discharge line (schrader valve end) goes to the remote condenser fitting marked "discharge line". · The 3/8 inch liquid line (schrader valve end) goes to the remote condenser fitting marked "liquid line". SCHRADER VALVES 4. Using a marker or pen, mark a line lengthwise from the coupling union nut to the bulkhead. Then tighten the coupling and additional 1/4 turn. As the nut turns, the line will show when 1/4 turn is made. 5. After all connections are made, and after the king valve has been opened, check the couplings for leaks. · The 1/2 inch discharge line goes to the ice maker fitting marked "discharge line". · The 3/8 inch liquid line ...